General information
The battery is one of the most important electrical components in the modern automobile. A battery that provides trouble-free service has a great influence on customer satisfaction. To ensure trouble-free service and optimum service life, batteries must be checked, serviced and maintained as per the instructions in this information.
Apart from starting the engine, the battery has other tasks. It acts as a buffer and also supplies electrical energy to the complete vehicle electrical system. In addition, the cyclical and capacity demands on the battery have increased due to additional safety and convenience features (electrical consumers) being installed.
The automobile battery has undergone many technical changes and improvements, and development of new battery technologies continues.
A new generation of maintenance free batteries uses physically and constructively optimized, lead-calcium coated positive electrodes. Advantages include minimal electrolyte consumption and servicing requirements, as well as improved charge stability over a longer period of time. Simplified checking of these batteries is also achieved with the charge indicator (magic eye).
Several different types of battery may be installed. Each requires specific servicing.
Warnings and safety measures for lead-acid batteries
When servicing batteries, Technicians must be aware of, and observe the warnings and safety measures specified in this information.
Scheme 1
Explanation of WARNING symbols on batteries
| CAUTION | 1 - Read and follow all instructions on battery, contained in Repair Information, Electrical Equipment, and in Owners Manual! 2 - Battery acid can cause severe burns! When working with electrolyte always wear eye protection, rubber gloves and a suitable apron. If electrolyte is spilled on eyes, skin, clothing (or painted surfaces), flush at once with large quantities of water. Never tip a battery on edge. Electrolyte can spill from the ventilation openings. 3 - Keep open flames and sparks away and DO NOT smoke near batteries! . Avoid sparks when working with cables and electrical units. Always reinstall battery positive (B+) or negative ( - ) terminal covers if removed during servicing 4 - Always wear eye protection when working with electrolyte! If electrolyte gets into eyes, flush with large quantities of water. Seek medical attention immediately! 5 - Keep children away from batteries! 6 - Dispose of batteries properly! Waste batteries must only be disposed of in appropriate waste disposal sites. Refer to local regulations pertaining to battery disposal. 7 - Never dispose of batteries in household waste! Batteries contain lead (Pb), which is toxic. 8 - Danger of explosion! Batteries produce explosive gasses while being charged. Keep open flames and sparks away and DO NOT smoke near batteries. The battery charger MUST be turned off when connecting or disconnecting the cables at the battery. Battery cell caps must NOT be removed while charging. Ensure that battery is charged in a well ventilated area. Avoid short circuits. Always reinstall battery positive (B+) or negative ( - ) terminal covers if removed during servicing. |
Smoking, naked flames, fires and sparks
| CAUTION | Smoking, naked flames and fires are prohibited whilst working; flying sparks must be avoided. Avoid short circuits and sparks when handling cables and electrical equipment. |
Electrolyte
| CAUTION | Can cause severe injury to the eyes, skin and mucous membranes. Inhalation can damage the respiratory system. Swallowing is harmful to the digestive system. First aid: Rinse eyes and immediately consult first aid station or inform doctor. Never tilt battery. Acid can leak out of the gas vents. Soak up spilled electrolyte with binding agent and neutralize any residual electrolyte. Never allow electrolyte to come into contact with hands. Avoid contact with skin. Never touch mouth, nose or eyes with soiled hands. Immediately change any clothing affected by electrolyte and place in water if necessary. Do not eat, drink or store foodstuffs at workplace. Wash thoroughly before breaks and on completion of work. |
Eye protection and protective clothing
| CAUTION | Wear safety goggles and an acid-resistant apron or alternatively electrolyte-proof overalls. Wear electrolyte-proof gloves. |
Danger of explosion
| CAUTION | Old batteries (in use for 6 months or more) must be treated with an anti-static spray (currently "Neostatic Antistatikum HB 155" or equivalent) prior to handling. Sealing plugs must be closed when charging. Charging of batteries removed from the vehicle is only permitted in vented cubicles with extraction system. After charging, battery must be left in charging area with extraction system for an appropriate length of time. Batteries must always be transported in conductive metal containers. Electrostatically chargeable materials are not to be used for securing purposes. |
Battery handling instructions
Note. Battery terminals must no longer be greased To avoid damaging the battery housing, do not use force when attaching battery terminals; press on by hand only.
Scheme 2
- Battery terminal tightening torque - arrow - 7.5 Nm.
- Additional battery terminal tightening torque: 7.5 Nm.
Battery in engine compartment, disconnecting and reconnecting
Should service procedures in this information specify disconnecting and reconnecting the battery, please heed the following CAUTIONS!
| CAUTION | Before beginning repairs on the electrical system: Where applicable, obtain anti-theft radio security code. Switch off all electrical consumers. Switch the ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. On vehicles equipped with Audi Telematics by OnStar (R) , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery --> 91 - COMMUNICATION After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar (R) , switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module --> 91 - COMMUNICATION |
Disconnecting
Special tools, testers and auxiliary items required
Scheme 3
- Torque wrench VAG 1331 or (equivalent 5 - 50 Nm)
- Heed CAUTIONS listed above
Scheme 4
- Slide battery cover to right - arrow 1 - and lift off - arrow 2 - (where applicable).
Scheme 5
- Disconnect negative ( - ) terminal - arrow - from battery post.
Reconnecting
- Reconnect negative ( - ) terminal to battery post and tighten to specified torque.
The following steps are required after reconnecting battery
Note. When reconnecting battery, activate vehicle equipment (radio/radio navigation system, clock, electric window lifters) in accordance with Owners Manual. On vehicles equipped with Audi Telematics by OnStar (R) , switch on emergency (back-up) battery --> 91 - COMMUNICATION . Further measures after reconnecting the voltage supply, refer to applicable engine repair information, 24 MULTIPORT FUEL INJECTION (MFI) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMB 24 - MULTIPORT FUEL INJECTION (MFI) for 2.0 LITER 4-CYL. 4V TURBO FUEL INJECTION IGNITION, ENGINE CODE(S): BPG, BWT 24 MULTIPORT FUEL INJECTION (MFI) for 3.0 LITER 6-CYL. 5V FUEL INJECTION & IGNITION, ENGINE CODE(S): AVK, BGN 24 - FUEL INJECTION SYSTEM for 3.2 V6 4V FUEL INJECTION IGNITION, ENGINE CODE(S): BKH 24 - MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 4V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BNS 24 MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 5V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BHF . Check proper function of remote control keys; adapt keys if necessary. Inform customer that all additional keys must also be adapted to ensure that the remote control works properly Owners Manual. After re-connecting battery, the ESP indicator lamp will go out only after driving a distance of several meters.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Battery terminal to battery post - nut | 7.5 |
Battery in luggage compartment, disconnecting and connecting
Should service procedures in this information specify disconnecting and reconnecting the battery, please heed the following CAUTIONS!
| CAUTION | Before beginning repairs on the electrical system: Where applicable, obtain anti-theft radio security code. Switch off all electrical consumers. Switch the ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. |
Special tools, testers and auxiliary items required
- Torque wrench VAG 1331 or (equivalent 5 - 50 Nm)
- Heed CAUTIONS listed above
Scheme 6
- Lift luggage compartment floor covering and secure.
- Disconnect battery negative ( - ) terminal - arrow - from battery post.
Connecting
- Reconnect negative ( - ) terminal to battery post and tighten to specified torque.
The following steps are required after reconnecting battery
Note. When reconnecting battery, activate vehicle equipment (radio/radio navigation system, clock, electric window lifters) in accordance with Owners Manual. Further measures after reconnecting the voltage supply, refer to applicable engine repair information, 24 MULTIPORT FUEL INJECTION (MFI) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMB 24 - MULTIPORT FUEL INJECTION (MFI) for 2.0 LITER 4-CYL. 4V TURBO FUEL INJECTION IGNITION, ENGINE CODE(S): BPG, BWT 24 MULTIPORT FUEL INJECTION (MFI) for 3.0 LITER 6-CYL. 5V FUEL INJECTION & IGNITION, ENGINE CODE(S): AVK, BGN 24 - FUEL INJECTION SYSTEM for 3.2 V6 4V FUEL INJECTION IGNITION, ENGINE CODE(S): BKH 24 - MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 4V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BNS 24 MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 5V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BHF . Check proper function of remote control keys; adapt keys if necessary. Inform customer that all additional keys must also be adapted to ensure that the remote control works properly Owners Manual. After re-connecting battery, the ESP indicator lamp will go out only after driving a distance of several meters.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Battery terminal to battery post - nut | 7.5 |
Battery in engine compartment, removing and installing
Removing
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries --> Warnings and safety measures for lead-acid batteries Always wear suitable protective clothing Eye protection and protective clothing . |
| CAUTION | Before beginning repairs on the electrical system: Where applicable, obtain anti-theft radio security code. Switch off all electrical consumers. Switch the ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. On vehicles equipped with Audi Telematics by OnStar (R) , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery --> 91 - COMMUNICATION After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar (R) , switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module --> 91 - COMMUNICATION |
Special tools, testers and auxiliary items required
- Torque wrench VAG 1331 or (equivalent 5 - 50 Nm)
Scheme 7
- Remove rubber seal from plenum chamber cover in direction of - arrow -.
- Remove plenum chamber cover - 1 - from the front.
- Disconnect negative ( - ) terminal - 1 - from battery
Scheme 8
- Then disconnect positive ( + ) terminal - 2 - from battery.
- Remove bolt - 4 - from battery hold-down bracket - 3 -.
Note. On vehicles with suspension cross-brace, hex socket bolt - 4 - must be removed using an Allen key with ball head. Loosen bolt enough so that ball head of Allen key contacts suspension cross-brace. Leave bolt and securing bracket in place and swivel battery out from under hold-down bracket.
Scheme 9
- Disconnect angled connector of central gas venting system - arrow -.
- Carefully lift battery out of plenum chamber.
| CAUTION | When disposing batteries it is absolutely necessary that the disposal procedures for batteries and sulfuric acid are observed. |
Installing
Install in reverse order of removal, noting the following
Note. Only maintenance-free batteries conforming to standards "TL82506" (as of December 1997) and "VW75073" (as of August 2001) may be installed. Batteries from the Audi parts range feature a base strip adapter for matching to different retainer flanges. The battery operating instructions give details of when and how to use the base strip adapter.
Scheme 10
- Insert battery in battery carrier so that lug at rear of battery carrier - arrow - engages in recess in battery base strip - 1 -.
- It should no longer be possible to move the battery.
Scheme 11
- The battery has been properly inserted if the center recess in the battery base strip aligns with the tapped hole in the battery tray - arrows -.
- Install battery hold-down bracket - 3 - and fasten with bolt - 4 -.
Note. Lug on battery retainer must engage in recess on battery base strip.
Reconnect battery in the following sequence with ignition and electrical equipment switched off
- First connect positive ( + ) terminal - 2 - to battery post and torque nut to specification.
- Then connect negative ( - ) terminal - 1 - to battery post and torque nut to specification.
- Connect hose for central gas venting system; see notes --> «Batteries with central gas venting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__batteries-with-central-gas-venting) .
- Check firm attachment of battery following installation --> «Battery installation, checking»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-installation-checking) .
The following steps are required after reconnecting battery
Note. When reconnecting battery, activate vehicle equipment (radio/radio navigation system, clock, electric window lifters) in accordance with Owners Manual. On vehicles equipped with Audi Telematics by OnStar (R) , switch on emergency (back-up) battery --> 91 - COMMUNICATION . Further measures after reconnecting the voltage supply, refer to appropriate engine repair information, RG 24. Check proper function of remote control keys; adapt keys if necessary. Inform customer that all additional keys must also be adapted to ensure that the remote control works properly Owners Manual. After re-connecting battery, the ESP indicator lamp will go out only after driving a distance of several meters.
Tightening torques
| Component - fastener | Nm |
|---|---|
| Battery hold-down bracket - nut | 12 |
| Battery terminal to battery post - nut | 7.5 |
Battery in luggage compartment, removing and installing
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries --> Warnings and safety measures for lead-acid batteries Always wear suitable protective clothing Eye protection and protective clothing . |
| CAUTION | Before beginning repairs on the electrical system: Where applicable, obtain anti-theft radio security code. Switch off all electrical consumers. Switch the ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. |
Removing
Special tools, testers and auxiliary items required
- Torque wrench VAG 1331 or (equivalent 5 - 50 Nm)
Scheme 12
- Lift luggage compartment floor covering and secure.
- Remove formed insert behind battery - 5 - upward - arrow -.
- Disconnect negative ( - ) terminal - 6 - from battery
- Fold positive terminal cover - 2 - upward.
- Then disconnect positive ( + ) terminal - 1 - from battery.
- Disconnect central gas venting system hose - 7 -.
- Remove bolt - 4 - from battery hold-down bracket - 3 -.
- Remove battery from battery console retaining strip.
- Remove battery from luggage compartment.
| CAUTION | When disposing batteries it is absolutely necessary that the disposal procedures for batteries and sulfuric acid are observed. |
Installing
Note. Only maintenance-free batteries conforming to standards "TL82506" (as of December 1997) and "VW75073" (as of August 2001) may be installed. Batteries from the Audi Parts Program have a bottom strip-adapter for adapting to different grip channels. Whether and how bottom strip-adapter is used, refer to operating instructions for battery.
Scheme 13
- Insert battery in battery holder.
- Battery clamping strip - 1 - must engage in battery holder mount - 2 -.
- It should no longer be possible to move the battery.
- Position battery hold-down bracket - 3 -.
- Lug on battery retainer must engage in recess on battery base strip.
- Hand tighten bolt - 4 -.
Reconnect battery in the following sequence with ignition and electrical equipment switched off
- First connect positive ( + ) terminal - 1 - to battery post and torque nut to specification.
- Close positive terminal cover - 2 -.
- Then connect negative ( - ) terminal - 6 - to battery post and torque nut to specification.
- Connect hose for central gas venting system; see notes --> «Batteries with central gas venting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__batteries-with-central-gas-venting) .
- Check firm attachment of battery following installation --> «Battery installation, checking»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-installation-checking) .
The following steps are required after reconnecting battery
Note. When reconnecting battery, activate vehicle equipment (radio/radio navigation system, clock, electric window lifters) in accordance with Owners Manual. Further measures after reconnecting the voltage supply refer to applicable engine repair information, 24 MULTIPORT FUEL INJECTION (MFI) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMB 24 - MULTIPORT FUEL INJECTION (MFI) for 2.0 LITER 4-CYL. 4V TURBO FUEL INJECTION IGNITION, ENGINE CODE(S): BPG, BWT 24 MULTIPORT FUEL INJECTION (MFI) for 3.0 LITER 6-CYL. 5V FUEL INJECTION & IGNITION, ENGINE CODE(S): AVK, BGN 24 - FUEL INJECTION SYSTEM for 3.2 V6 4V FUEL INJECTION IGNITION, ENGINE CODE(S): BKH 24 - MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 4V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BNS 24 MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 5V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BHF . Check proper function of remote control keys; adapt keys if necessary. Inform customer that all additional keys must also be adapted to ensure that the remote control works properly Owners Manual. After re-connecting battery, the ESP indicator lamp will go out only after driving a distance of several meters.
Tightening torques
| Component - fastener | Nm |
|---|---|
| Battery hold-down bracket - nut | 12 |
| Battery terminal to battery post - nut | 7.5 |
Battery installation, checking
Battery must not be moveable after battery hold-down bracket and bolt is installed.
| CAUTION | If battery is not secured properly, the following will result: Shortened battery service life due to vibration damage. Battery cell and plate damage. Electrolyte leakage due to battery case damage. Poor collision safety. |
Batteries with central gas venting
| CAUTION | Ensure venting system hose is always attached to battery. On batteries with central gas venting hose/pipe, ensure that hose does not become disconnected. Only then is the battery able to vent freely. |
Note. The latest generation of batteries is equipped with a central gas venting system and a fine-mesh "flame trap". Function: The gases produced during charging escape through a central opening in the top of the battery cover. The fine-mesh flame trap which prevents ignition of the flammable gas in the battery is also located here. The flame trap comprises a small round fiberglass mat approx. 15 mm in diameter and 2 mm thick. It operates in a manner similar to a valve, i.e. it allows the gas produced in the battery by gassing to escape.
Scheme 14
The charge indicator - arrow - provides information on the electrolyte level and charge level of the battery to be tested.
Three different colored indications are possible
| Color indicator | Battery status |
|---|---|
| Green | Battery adequately charged. |
| Black | Not charged or inadequately charged. |
| Colorless or yellow | Critical electrolyte level reached; topping up with distilled water essential. |
Note. If a battery is more than 5 years old and the indicator is colorless, replace battery.
Test sequence
Note. When recharging the battery, and during driving, air bubbles may form under the "magic eye". They distort the color displayed by the magic eye. If batteries are fitted with sealing plugs for production reasons, these are covered with plastic foil. Prior to visual inspection, use screwdriver handle to tap gently and carefully on "magic eye" to disperse any bubbles. Observe color of charge indicator --> Battery with charge indicator (magic eye), checking .
Visual inspection
Visually inspect battery before performing measurements, e.g. no-load voltage, specific gravity of electrolyte or battery test.
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries --> Warnings and safety measures for lead-acid batteries Always wear suitable protective clothing Eye protection and protective clothing . |
- Check for the following
- Battery housing damage. Electrolyte can leak out if the housing is damaged.
- Battery posts (battery cable terminals) damaged. Proper contact of connections is not ensured if battery posts are damaged. This may then result in cable burn-out and electrical system malfunctions.
- Batterys original sealing plugs fitted. The sealing plugs must be fitted with an O-ring. Only use sealing plugs of same type (same as original equipment) if originals are lost or damaged.
No-load voltage, checking
Special tools, testers and auxiliary items required
Scheme 15
- Multimeter VAG 1526 B , Fluke 83 or equivalent
Test requirements
- Always heed the following, otherwise correct measurement is not guaranteed.
Note. If no load voltage measurement is carried out with the battery installed in vehicle, disconnect negative ( - ) battery terminal. The battery must not be loaded by connected power consumers for at least 2 hours before making measurements. The battery must not be charged for at least 2 hours before making the measurements.
| CAUTION | On vehicles equipped with Audi Telematics by OnStar (R) , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery --> 91 - COMMUNICATION After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar (R) , switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module --> 91 - COMMUNICATION |
| CAUTION | Switch off all electrical consumers. Switch the ignition off and remove ignition key. |
- Disconnect negative ( - ) terminal from battery post.
Battery in engine compartment --> Battery in engine compartment, disconnecting and reconnecting
Battery in luggage compartment --> Battery in luggage compartment, disconnecting and connecting
- Measure voltage between battery posts.
- Battery is OK if measuring instrument reading is 12.5 V or above.
- The battery no-load voltage must at no time be less than 12.5 Volts, otherwise the battery must be recharged immediately --> «Battery, charging»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-charging) .
- Repeat voltage measurement between terminals.
- Battery no-load voltage must not be less than 12.5 Volts.
- If no-load voltage is not OK, replace battery.
Install in reverse order of removal, noting the following
- Reconnect battery. Required steps
Battery in engine compartment Reconnecting
Battery in luggage compartment Connecting
Electrolyte level - batteries with charge indicator (magic eye), checking
- Electrolyte level on batteries with charge indicator - arrow - can be established from the color indication. Three different colored displays are possible
| Color indicator | Battery status |
|---|---|
| Green | Battery adequately charged. |
| Black | Not charged or inadequately charged. |
| Colorless or yellow | Critical electrolyte level reached; topping up with distilled water essential, procedure --> Electrolyte level - batteries with sealing plugs, checking |
Electrolyte level - batteries with sealing plugs, checking
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries Smoking, naked flames, fires and sparks . Always wear suitable protective clothing Eye protection and protective clothing . Only use flashlight to illuminate inside of battery casing. Never illuminate inside of battery casing with a naked flame. Keep naked flames and burning cigarettes away from batteries. When disposing of batteries, always pay attention to the appropriate regulations for batteries and sulfuric acid. Proper battery sealing plugs must be used to ensure differing battery cover systems are sealed correctly. Use genuine sealing plugs of same construction if lost or damaged. The plugs must be installed with an O-ring seal. |
Special tools, testers and auxiliary items required
Scheme 16
- Battery filler bottle VAS 5045
Scheme 17
- Hydrometer (commercially available)
The correct electrolyte level is an important factor in ensuring long battery service life.
- On batteries with visible min. and max marks it is sufficient to perform visual inspection from outside to check electrolyte level.
- The electrolyte level must be above the minimum marking but not exceed the max marking.
- On batteries on which the min. and max marks are difficult to see, or on which the electrolyte level cannot be seen because of the opacity of the battery housing, remove the sealing plugs.
- Check the electrolyte level by making a visual inspection of the inside of the battery.
- The electrolyte level must coincide with the internal level mark (plastic web). This corresponds to the max marking on the outside.
Electrolyte level too low
If the electrolyte level is too low, drying-out of the cell plates will reduce the capacity (power) of the battery. The cell plates must be fully covered by electrolyte (sulfuric acid/water mixture) in order to prevent corrosion of plates, plate bridges and cell connectors. Such corrosion would impair battery operation and make the battery unusable.
Scheme 18
- If electrolyte level is too low, use battery filler bottle VAS 5045 to add distilled water until max mark is reached.
Note. Filler neck of battery filler bottle VAS 5045 is designed to prevent over-filling of battery cell and electrolyte spills. When the maximum filling level is reached, the flow of distilled water into the battery cell is cut off. Use distilled water only, this prevents contamination of the battery electrolyte and the associated increase in self discharge. Screw sealing plugs of battery cells back in again.
| CAUTION | Battery openings must be fitted with the correct plugs to ensure that battery cover (different types!) is properly secured. Always use correct sealing plugs (same as original equipment) in the event of loss or damage. The plugs must be equipped with an O-ring seal. |
Electrolyte level too high
If the electrolyte level is too high (overfilled), escaping electrolyte (sulfuric acid/water mixture) will cause damage outside the battery.
- If the electrolyte level is above the inner level mark (the plastic web) or the outer max mark, it is essential to drain some off.
- Remove the battery cell sealing plugs.
- Use a commercially available hydrometer to drain off the sulfuric acid until it has fallen to the level of the plastic web or the max mark as appropriate.
- Screw sealing plugs of battery cells back in again.
| CAUTION | Battery openings must be fitted with the correct plugs to ensure that battery cover (different types!) is properly secured. Always use correct sealing plugs (same as original equipment) in the event of loss or damage. The plugs must be equipped with an O-ring seal. |
Electrolyte specific gravity - batteries with sealing plugs, checking
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries Smoking, naked flames, fires and sparks . Always wear suitable protective clothing Eye protection and protective clothing . When disposing of batteries, always pay attention to the appropriate regulations for batteries and sulfuric acid. Proper battery sealing plugs must be used to ensure differing battery cover systems are sealed correctly. Use genuine sealing plugs of same construction if lost or damaged. The plugs must be installed with an O-ring seal. |
Special tools, testers and auxiliary items required
- Hydrometer (commercially available)
Note. The electrolyte specific gravity test in conjunction with the battery test provides specific information on battery condition. The temperature of the battery electrolyte must be at least 10 ° C. Electrolyte specific gravity can be checked immediately after charging battery.
Test sequence
- Remove all battery plugs (battery cell sealing plugs).
Scheme 19
- Immerse end of hydrometer in a cell and extract sufficient electrolyte so that float swims free in the electrolyte.
- The greater the specific gravity of the electrolyte drawn in, the higher the float will ride.
- The specific gravity in kg/dm 3 (specific gravity of electrolyte) can be read off the scale - arrow - on the hydrometer.
- Take reading on hydrometer and compare to values given in table
| Charge condition in normal climatic zones | Specific gravity of electrolyte in kg/dm 3 |
|---|---|
| Discharged | 1.12 |
| Half charged | 1.20 |
| Well charged | 1.28 |
| Charge level in tropical countries | Specific gravity of electrolyte in kg/dm 3 |
|---|---|
| Discharged | 1.08 |
| Half charged | 1.16 |
| Fully charged | 1.23 |
The specific gravity in normal climatic zones must be at least 1.24 kg/dm 3 . If specific gravity is too low in all battery cells
- Charge battery and then repeat electrolyte specific gravity test.
Example 1
| Battery cell | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Specific gravity per cell in kg/dm 3 | 1.24 | 1.25 | 1.25 | 1.10 1) | 1.24 | 1.25 |
| 1) Specific gravity in cell 4 is too low (deviation is greater than 0.03 kg/dm 3 ). | ||||||
* specific gravity in cell 4 is too low (deviation greater than 0.03 kg/dm 3 )
Example 2
| Battery cell | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Specific gravity per cell in kg/dm 3 | 1.26 | 1.26 | 1.25 | 1.14 1) | 1.18 1) | 1.24 |
| 1) Specific gravity in cell 4 and 5 is too low (deviation is greater than 0.03 kg/dm 3 ). | ||||||
* specific gravity in cells 4 and 5 is too low (deviation greater than 0.03 kg/dm 3 )
If specifications are not obtained
- Replace battery.
Note. The measured values for the electrolyte specific gravity of the individual battery cells must NOT deviate by more than 0.03 kg/dm 3 , otherwise battery has to be replaced. Reinstall battery sealing plugs.
| CAUTION | Battery openings must be fitted with the correct plugs to ensure that battery cover (different types!) is properly secured. Always use correct sealing plugs (same as original equipment) in the event of loss or damage. The plugs must be equipped with an O-ring seal. |
Battery, testing
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries Smoking, naked flames, fires and sparks . Always wear suitable protective clothing Eye protection and protective clothing . DO NOT battery test batteries which are gassing. Otherwise there is a risk of explosion. The following notes and procedures must be followed to ensure correct measurements. When disposing of batteries, always pay attention to the appropriate regulations for batteries and sulfuric acid. |
Note. In order to better determine a batterys overall condition, it is recommended to always perform the battery test in conjunction with the electrolyte specific gravity test Always follow the battery tester operating instructions. It is not necessary to remove battery from vehicle or disconnect battery terminals.
Special tools, testers and auxiliary items required
Scheme 20
- Battery Test Kit Midtronics MCR 340V (VAG tester illustrated here for reference only).
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Check no-load voltage --> «No-load voltage, checking»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__no-load-voltage-checking)
- Connect tester cable clamps to battery terminal MCR 340V Instruction Manual Tester leads must be securely fastened and make proper contact with the battery posts.
- Select test mode "IN-VEHICLE" or "OUT-OF-VEHICLE" (refer to MCR 340V Instruction Manual).
- Select battery type (AGR or conventional) (refer to MCR 340V Instruction Manual).
- Set tester to "Warranty Test" (refer to MCR 340V Instruction Manual).
- Perform battery test by setting load current on tester according to battery (DIN) capacity (refer to MCR 340V Instruction Manual).
Note. Use print function of MCR 340V where test results are required for warranty claims.
Battery test results
| Battery Tester Display / Printout | Required action |
|---|---|
| Good Battery | None |
| Good - Recharge | Charge battery where necessary --> Battery, charging |
| Use inCHARGE | Charge battery --> Battery, charging |
| Replace Battery | Replace battery --> Battery in engine compartment, removing and installing |
| Bad Cell - Replace | Replace battery --> Battery in engine compartment, removing and installing |
Battery, charging
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries Smoking, naked flames, fires and sparks . Always wear suitable protective clothing Eye protection and protective clothing . Danger of explosion! Batteries produce explosive gasses while being charged. Keep open flames and sparks away and DO NOT smoke near batteries. The battery charger MUST be turned off when connecting or disconnecting the cables at the battery. Battery cell caps must NOT be removed while charging. "Boosting" a sulfated battery a high charging rate can cause an explosion. Ensure that battery is charged in a well ventilated area. Precision tools must not be kept in the same room where batteries are being charged. Tools may corrode due to chemical reaction. |
Special tools, testers and auxiliary items required
- Battery Charging Station: Midtronics INC-940.
Note. Before charging, battery must have a minimum temperature of 10 degrees Celsius (50 degrees Fahrenheit). It is not necessary to remove battery from vehicle or disconnect battery terminals. Charging voltage must not exceed 14.4V. Always follow the battery charger operating instructions. After charging, confirm battery no load voltage and electrolyte specific gravity before reuse in vehicle.
| CAUTION | Before beginning repairs on electrical system Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Slide battery cover to right - arrow 1 - and lift off - arrow 2 - where applicable.
Battery in engine compartment
Scheme 21
- Connect battery charger to battery, positive to positive ( + ) - 2 - , negative to negative ( - ) - 1 -.
Battery in engine compartment
Scheme 22
- Release retaining clamps - arrow - and open cover - 2 - over positive terminal.
- Connect positive battery charger clamp - 3 - to positive ( + ) terminal - 4 - and to negative battery charger clamp - 5 - to negative terminal - 1 - (VAS 5900 charger shown for illustration purposes only).
All
- Switch on battery charger.
| CAUTION | If battery begins gassing (boiling) violently when charging, REDUCE charging rate immediately. |
- Adjust charging rate according to battery capacity (refer to Midtronics INC-940 Instruction Manual).
Charging totally discharged batteries
- Batteries which have not been used for lengthy periods, e.g. in vehicles which have not been driven, are subject to self-discharge.
- A battery is considered to be totally discharged if the no-load voltage has dropped below 11.6 V. Initial battery damage can occur between 12.2 and 11.6 V. Measuring no-load voltage --> «No-load voltage, checking»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__no-load-voltage-checking) .
- In a totally discharged battery the electrolyte (sulfuric acid/water mixture) is reduced to almost all water, as the sulfuric acid content is heavily reduced. At temperatures below zero, the battery may freeze and the cause the housing to burst.
- Totally discharged batteries become sulphated, i.e. all the plate surfaces of such batteries become hard. The electrolyte has a slightly milky appearance (instead of being clear).
- If totally discharged batteries are charged directly after being discharged, the sulphation dissipates.
- If this is not done, the plates become even harder and their ability to absorb charge is impaired. This results in reduced power output.
Procedure for charging exhausted batteries (sulphated)
Totally discharged batteries (that are also sulphated) must be charged as follows using a low charging current
- Set charging current to approx. 5 % of battery capacity, i.e. for a 60 Ah battery the charging current is approx. 3 A.
- Charging battery --> «Battery, charging»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-charging) .
- The charging voltage (U max ) must not exceed 14.4 V.
| CAUTION | Never "quick charge" a totally discharged battery. Effective charging will not take place, despite what appears to be a sufficient voltage applied. Batteries loaded in this manner may be incorrectly evaluated as OK and battery damage may result. |
Quick-charging
| CAUTION | Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries Smoking, naked flames, fires and sparks . Always wear suitable protective clothing Eye protection and protective clothing . Danger of explosion! Batteries produce explosive gasses while being charged. Keep open flames and sparks away and DO NOT smoke near batteries. The battery charger MUST be turned off when connecting or disconnecting the cables at the battery. Battery cell caps must NOT be removed while charging. "Boosting" a sulfated battery a high charging rate can cause an explosion. Ensure that battery is charged in a well ventilated area. Precision tools must not be kept in the same room where batteries are being charged. Tools may corrode due to chemical reaction. |
| CAUTION | Battery must not be connected to vehicle electrical system when quick charging. Where applicable, disconnect battery in engine compartment --> Battery in engine compartment, disconnecting and reconnecting . Where applicable, disconnect battery in luggage compartment --> Battery in luggage compartment, disconnecting and connecting . Never quick-charge a totally discharged battery. Effective charging will not take place. |
Note. The battery temperature must be at least 10 ° C. Quick-charging of batteries should only be performed in exceptional circumstances (e.g. boost starting) as rapid charging may cause damage.
Battery Interrupt Igniter N253 - Audi RS4, removing and installing
Battery Interrupt Igniter N253 must be replaced if faulty or damaged.
- Battery Interrupt Igniter N253 , replacing --> «69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Generator (GEN) - 4-cylinder 1.8L Turbo engine, removing and installing
Special tools, testers and auxiliary items required
Scheme 23
- Drip tray VAG 1306 or drip tray for workshop crane VAS 6208
Scheme 24
- Hose clip pliers VAG 1921
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
| CAUTION | The cooling system is pressurized when the engine is warm. Wear gloves and other protection and carefully release system pressure if necessary, before performing repairs. |
- Open filler cap for coolant expansion tank.
- Remove engine cover.
- Lift vehicle.
Scheme 25
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Scheme 26
- Place drip tray VAG 1306 or drip tray for workshop crane VAS 6208 below engine.
- Pull off retaining clip - 1 - and pull out Engine Coolant Temperature (ECT) Sensor (on Engine) G83 - 2 -.
- Drain coolant from radiator only.
Scheme 27
- Disconnect top coolant hose from coolant pipe - arrow -.
Scheme 28
- Remove radiator fan control module - arrow - and set aside.
| CAUTION | Before removing ribbed belt, mark direction of rotation. Belt damage will result if not reinstalled in proper direction. |
Scheme 29
- Relieve ribbed belt tension by turning tensioner in direction of - arrow -.
- Remove ribbed belt from generator pulley.
- Release pressure from the tensioner.
Scheme 30
- Disconnect electrical connection - 1 -.
Note. Electrical connections - 2 - and - 3 - not applicable to US/CDN models.
Scheme 31
- Remove top and bottom bolts - arrows - and swing generator forward.
Scheme 32
- Disconnect electrical connection - 2 -.
- Remove 30 ( B+ ) terminal - 1 -.
- Remove generator.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Before installing the ribbed belt, ensure that all subassemblies (generator, a/c compressor etc.) are securely mounted and turn freely. When installing belt, ensure correct seating in the belt pulleys! Reinstall all hose clamps, harness retainers and replace all removed cable ties as originally installed in production. |
Scheme 33
- Note running direction of ribbed belt as previously marked and route as illustrated.
- Top up coolant --> 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s) AMB - 19 - ENGINE - COOLING SYSTEM for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/blowers-superchargers-turbochargers/#20l-4-cyl-4v-turbo-engine-mechanical-engine-codes-bpg-bwt) for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT 19 ENGINE - COOLING SYSTEM for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/cooling-fan/#32l-v6-4v-engine-mechanical-engine-codes-bkh) for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH «19 - ENGINE - COOLING SYSTEM»(ref-278885-S21797592792008020700000) for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS «19 - ENGINE - COOLING SYSTEM»(ref-278884-S12212760292008020700000) for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
- Start engine and check belt running.
Tightening Torques (1.8L)
Tightening Torques
| Component - fastener | Nm |
|---|---|
| Generator (GEN) to engine - bolt | 23 |
| Terminal 30/B+ to generator - nut | 16 |
Generator (GEN) - 4-cylinder 2.0L Turbo FSI engine, removing and installing
Special tools, testers and auxiliary items required
Scheme 34
- Locking pin T40098 or equivalent
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Scheme 35
- Remove engine cover - arrows -.
| CAUTION | Before removing ribbed belt, mark direction of rotation. Belt damage will result if not reinstalled in proper direction. |
Scheme 36
- Relieve ribbed belt tension by turning tensioner in direction of - arrow - and lock in place using locking pin T40098.
- Remove ribbed belt.
Scheme 37
- Remove air hose - 2 - at intake manifold.
Note. Disregard - 1 -.
- Remove top and bottom bolts - arrows - and swing generator forward.
- Disconnect electrical connection - 2 -.
- Remove D+ terminal - 1 -.
- Remove generator.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Before installing the ribbed belt, ensure that all subassemblies (generator, a/c compressor etc.) are securely mounted and turn freely. When installing belt, ensure correct seating in the belt pulleys! Reinstall all hose clamps, harness retainers and replace all removed cable ties as originally installed in production. |
- Note running direction of ribbed belt as previously marked and route as illustrated.
- Top up coolant --> 2.0 Liter 4-Cyl. 4V Turbo Fuel Injection Ignition, Engine Code(s): BPG - 19 - ENGINE - COOLING SYSTEM for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/blowers-superchargers-turbochargers/#20l-4-cyl-4v-turbo-engine-mechanical-engine-codes-bpg-bwt) for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT 19 ENGINE - COOLING SYSTEM for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/cooling-fan/#32l-v6-4v-engine-mechanical-engine-codes-bkh) for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH «19 - ENGINE - COOLING SYSTEM»(ref-278885-S21797592792008020700000) for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS «19 - ENGINE - COOLING SYSTEM»(ref-278884-S12212760292008020700000) for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
- Start engine and check belt running.
Tightening Torques (2.0L)
Tightening Torques
| Component - fastener | Nm |
|---|---|
| Generator (GEN) to engine - bolt | 23 |
| Terminal 30/B+ to generator - nut | 16 |
Generator (GEN) - 3.0L 6-cylinder engine, removing and installing
Special tools, testers and auxiliary items required
Scheme 38
- Ribbed Belt Installation Tool 3299 with tensioner claw 3299/1
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Scheme 39
- Remove front engine cover - arrows -.
| CAUTION | Before removing ribbed belt, mark direction of rotation. Belt damage will result if not reinstalled in proper direction. |
Scheme 40
- Relieve ribbed belt tension by turning tensioner in direction of - arrow -.
- Remove ribbed belt from power steering pump pulley.
- Lift vehicle.
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Scheme 41
- Remove cable ties - arrows - , unclip cover for starter cable guide harness and remove harness from guide.
Vehicles with automatic transmission
Scheme 42
- Remove nuts - 1 - and - 2 -.
- Remove bracket for ATF lines.
All models
- Unclip refrigerant line from bracket at sump.
- Disconnect electrical connections at generator.
- Remove bolts - arrows -.
Scheme 43
- Remove generator.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Before installing the ribbed belt, ensure that all subassemblies (generator, a/c compressor etc.) are securely mounted and turn freely. When installing belt, ensure correct seating in the belt pulleys! Reinstall all hose clamps, harness retainers and replace all removed cable ties as originally installed in production. |
Scheme 44
- Note running direction of ribbed belt as previously marked and route as illustrated.
- Generator (GEN)
- Ribbed belt
- Power steering pump
- Air conditioner compressor
- Crankshaft
- Tensioning roller
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
- Start engine and check belt running.
Tightening torques
| Component - fastener | Nm | |
|---|---|---|
| M8 | 22 | |
| Generator to engine bracket - bolts | M10 | 45 |
| Terminal 30/B+ to generator - nut | 16 | |
| Bracket for refrigerant line to sump - bolt | 10 | |
| Bracket for starter wire to engine console - bolt | 10 | |
Generator (GEN) - 3.2L 6-cylinder FSI engine, removing and installing
Special tools, testers and auxiliary items required
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Scheme 45
- Remove front engine cover - arrows -.
Scheme 46
- Remove screws - arrows -.
- Remove air guides - 1 - and - 2 -.
- Lift vehicle.
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Bring lock carrier into service position --> «50 BODY, FRONT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
| CAUTION | Before removing ribbed belt, mark direction of rotation. Belt damage will result if not reinstalled in proper direction. |
Scheme 47
- Relieve ribbed belt tension by turning tensioner in direction of - arrow -.
- Remove ribbed belt from generator pulley.
- Allow tensioner to return to operating position.
Scheme 48
- Remove bolts - arrows -.
- Disconnect electrical connections - 1 - and - 2 - from Generator.
- Remove Generator.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Before installing the ribbed belt, ensure that all subassemblies (generator, a/c compressor etc.) are securely mounted and turn freely. When installing belt, ensure correct seating in the belt pulleys! Reinstall all hose clamps, harness retainers and replace all removed cable ties as originally installed in production. |
Scheme 49
- Note running direction of ribbed belt as previously marked and route as illustrated.
- Generator (GEN)
- Idler
- Coolant pump
- Power steering pump
- Air conditioning compressor
- Tensioning roller
- Crankshaft
- Reinstall lock carrier --> «50 BODY, FRONT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
- Start engine and check belt running.
- Reinstall front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Tightening Torques (3.2L)
Tightening Torques
| Component - fastener | Nm |
|---|---|
| Generator to engine bracket - bolt | 22 |
| Terminal 30/B+ to generator - nut | 16 |
Generator (GEN) - 4.2L 8-cylinder engine (Audi S4), removing and installing
Special tools, testers and auxiliary items required
- Drip tray VAG 1306 or drip tray for workshop crane VAS 6208
Scheme 50
- Oil drain appliance VAG 1782 or UL approved equivalent
- Hose clip pliers VAG 1921
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
Scheme 51
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Use oil drain appliance VAG 1782 (or UL approved equivalent) to draw power steering hydraulic fluid from power steering from reservoir.
| CAUTION | The cooling system is pressurized when the engine is warm. Wear gloves and other protection and carefully release system pressure if necessary, before performing repairs. |
- Open filler cap for coolant expansion tank.
- Lift vehicle
- Remove right front wheel.
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Scheme 52
- Remove air guide - arrow - from right auxiliary radiator.
Scheme 53
- Remove air guide - arrow - from left auxiliary radiator.
Scheme 54
- Place drip tray VAG 1306 or drip tray for workshop crane VAS 6208 beneath engine.
- Remove drain plug - arrow - at thermostat housing and drain engine coolant.
Scheme 55
- Release and pull off bottom coolant hose from radiator - arrow - and drain remaining engine coolant.
Scheme 56
- Place oil drain appliance VAG 1782 underneath.
- Remove hydraulic hoses - arrows - at rear of lock carrier to power steering cooling line.
Scheme 57
- Remove right engine compartment cover - 1 -.
Scheme 58
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air guide.
- Remove air guide - 2 -.
Scheme 59
- Remove top coolant hose - arrow - from radiator.
Scheme 60
- Remove left engine compartment cover - 1 -.
Scheme 61
- Remove electrical connections - 1 - and - 2 - from retainer and disconnect them.
- Set aside harness toward lock carrier.
Scheme 62
- Disconnect electrical connections for left and right headlamps - arrow -.
Scheme 63
- Disconnect electrical connections for both left and right airbag sensors - arrow - on lock carrier.
- Set aside harness toward lock carrier.
- Remove hood release cable from lock carrier --> «55 HOOD, LIDS»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior)
Scheme 64
- Disconnect electrical connection - arrow - for right radiator fan.
Scheme 65
- Remove screws - arrows - and remove right and left radiator air guides.
Scheme 66
- Unclip temperature sensor - 1 - from retainer and set aside.
- Remove power steering cooling line - arrows -.
Scheme 67
- Remove screw - arrow - and remove cooling fan control module.
| CAUTION | In order not to damage the condensor and refrigerant lines/hoses, ensure refrigerant lines are not excessively bent or tensioned in the following procedures. Do not open refrigerant circuit! |
Scheme 68
- Disconnect electrical connection - 1 - at High Pressure Sensor G65.
- Remove screws - arrows -.
- Remove condensor with refrigerant lines attached and lower downward.
Scheme 69
- Remove screws at lock carrier left and right - arrows -.
- Remove front hood sealing gasket from lock carrier and fenders.
Scheme 70
- Remove bolts at impact absorbers - arrows - (left and right).
Note. Use an assistant to remove lock carrier in the following step. Remove lock carrier and tilt aside (secure against falling).
Scheme 71
- Release hose clamp - 2 - and remove coolant hose from right coolant pipe.
- Release hose clamp - 1 - and remove coolant hose from coolant pipe.
Note. Engine shown removed in illustration for clarity.
| CAUTION | Before removing ribbed belt, mark direction of rotation. Belt damage will result if not reinstalled in proper direction. |
Scheme 72
- Relieve ribbed belt tension by loosening tensioner bolt - arrow -.
- Remove ribbed belt from generator pulley.
Scheme 73
- Remove bolts - arrows - and remove tensioner.
Scheme 74
- Remove bolts - arrows -.
- Remove generator from bracket and pull forwards.
Note. If generator is difficult to remove from mounting, reinstall mounting bolts loosely and carefully strike bolt heads with hammer in order to loosen mounting threaded bushings.
Scheme 75
- Release hose clamp - 3 - and remove coolant hose from generator.
- Disconnect electrical connection - 1 -.
- Remove nut - 2 - and terminal eyelet from generator.
- Remove generator.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Before installing the ribbed belt, ensure that all subassemblies (generator, a/c compressor etc.) are securely mounted and turn freely. When installing belt, ensure correct seating in the belt pulleys! Reinstall all hose clamps, harness retainers and replace all removed cable ties as originally installed in production. |
- To aid in installation, drive generator mounting bushings back into mounting flanges approx. 4mm.
| CAUTION | Tight generator mounting bushings must be made to move freely in order to ensure sufficient clamping force at the specified bolt torque. |
Scheme 76
- Note running direction of ribbed belt as previously marked and route as illustrated.
- Generator (GEN)
- Ribbed belt
- Idler
- Vibration damper
- Tensioning roller
- Tension ribbed belt by rotating tensioner counterclockwise with torque wrench until 70 Nm is achieved.
Scheme 77
- Hold and simultaneously tighten tensioner bolt - arrow - to 22 Nm.
- Reinstall lock carrier and related assemblies --> «50 BODY, FRONT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Reinstall front bumper --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Top up coolant --> 4.2 Liter V8 5V Engine Mechanical, Engine Code(s): BHF - 19 - ENGINE - COOLING SYSTEM for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/blowers-superchargers-turbochargers/#20l-4-cyl-4v-turbo-engine-mechanical-engine-codes-bpg-bwt) for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT 19 ENGINE - COOLING SYSTEM for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/cooling-fan/#32l-v6-4v-engine-mechanical-engine-codes-bkh) for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH «19 - ENGINE - COOLING SYSTEM»(ref-278885-S21797592792008020700000) for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS «19 - ENGINE - COOLING SYSTEM»(ref-278884-S12212760292008020700000) for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF .
- Refill power steering fluid reservoir --> «48 - STEERING»(/audi/a4/b7-2004-2009/remont/axle-shafts/#suspension-wheels-steering)
| CAUTION | Power steering pump must NOT be allowed to run dry. Damage will result. |
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
- Start engine and check belt running.
- Check and adjust headlamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair)
Tightening Torques (4.2L - S4)
Tightening Torques
| Component - fastener | Nm |
|---|---|
| Coolant pipes to generator - bolt | 9 |
| Terminal 30/B+ to generator - nut | 16 |
| Generator (GEN) to engine bracket - bolt | 22 |
| Tensioning roller to engine - bolt | 22 |
Generator (GEN) - 4.2L 8-cylinder FSI engine (Audi RS4), removing and installing
Special tools, testers and auxiliary items required
- oil drain appliance VAG 1782 or UL approved equivalent
Scheme 78
- Workshop crane drip tray VAS 6208 or drip tray VAG 1306
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Use oil drain appliance VAG 1782 (or UL approved equivalent) to draw power steering hydraulic fluid from power steering from reservoir.
| CAUTION | The cooling system is pressurized when the engine is warm. Wear gloves and other protection and carefully release system pressure if necessary, before performing repairs. |
- Open filler cap for coolant expansion tank.
- Lift vehicle
- Remove right front wheel.
Scheme 79
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
- Remove right front wheelhouse liner --> «66 EXTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) Front bumper cover, removing and installing.
- Remove right air duct - arrow - in front of auxiliary radiator.
- Place oil drain appliance VAG 1782 (or UL approved equivalent) under engine.
- Drain engine oil.
Scheme 80
- Remove screws - arrows - at oil cooler lines on upper part of oil pan.
- Remove oil lines from upper part of oil pan.
- Remove left air duct - arrow - in front of auxiliary radiator.
Scheme 81
- Remove screws - arrow - at upper left auxiliary radiator bracket at lock carrier.
- Place workshop crane drip tray VAS 6208 or VAG 1306 under engine.
Scheme 82
- Remove drain plug - arrow - at coolant regulator housing and drain coolant at engine.
Scheme 83
- Also remove drain plug - arrow - at front coolant pipe and drain remaining coolant.
Scheme 84
- Loosen hose clamp - arrow - and remove lower coolant hose from radiator.
- Place oil extractor VAG 1782 under engine.
- Disconnect hydraulic lines to rear left radiator coil on lock carrier - arrows -.
- Remove screws - arrows -.
- Remove air duct - 1 - and - 2 -.
- Detach upper coolant hose - arrow - from radiator.
- Remove cover - 1 - at left of engine compartment.
Scheme 85
- Remove electrical connections - 1 - and - 2 - from retainer and disconnect.
- Set aside harness toward lock carrier.
- Disconnect electrical connections for left and right headlamps - arrow -.
- Disconnect electrical connections for left and right airbag sensors - arrow - at lock carrier.
- Set aside harness toward lock carrier.
- Remove hood cable at lock carrier --> «55 HOOD, LIDS»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Disconnect electrical connection for right radiator fan - arrow -.
Scheme 86
- Remove screws - arrows - at left and right air ducts on radiator.
| CAUTION | In order not to damage the condensor and refrigerant lines/hoses, ensure refrigerant lines are not excessively bent or tensioned in the following procedures. Do not open refrigerant circuit! |
- Disconnect electrical connection - 1 - for High Pressure Sensor G65.
- Remove screws - arrows -.
- Remove condenser and swing downward with refrigerant lines connected.
Scheme 87
- Remove right coolant hose - arrow - at radiator.
- Remove screws - arrows - at left and right lock carriers.
- Remove engine compartment seat at lock carrier and fender edges.
- Remove screws on left and right shock absorbers - arrows -.
Note. Use an assistant to remove lock carrier in the following step. Remove lock carrier and tilt aside (secure against falling).
| CAUTION | Before removing ribbed belt, mark direction of rotation. Belt damage will result if not reinstalled in proper direction. |
Scheme 88
- Relieve ribbed belt tension by pivoting tensioner in direction of - arrow -.
Note. Ensure lever axle is long enough so that it can be completely inserted in tensioner. Remove ribbed belt from generator pulley. Release tensioner.
Scheme 89
- Remove bolts - arrows -.
- Remove tensioner - 1 - at upper part of oil pan.
Scheme 90
- Remove bolt - 2 - on coolant pipe bracket.
- Loosen hose clamp and remove coolant hose - 1 - to generator.
- Remove bolts - 3 - and - 4 -.
- Remove generator from bracket and pull forward.
Note. If generator is difficult to remove from mounting, reinstall mounting bolts loosely and carefully strike bolt heads with hammer in order to loosen mounting threaded bushings.
Scheme 91
- Remove coolant hose - 1 - from generator.
- Disconnect electrical connection - 5 -.
- Remove screw - 4 - and remove heat shield.
| CAUTION | Ensure coolant pipes do not slip out, otherwise O-rings on removed coolant pipes must be replaced. Re-tighten bracket - 3 - after removing heat shield if necessary. |
- Remove nut - 2 - and terminal 30 ( B+ ) eyelet from generator.
- Remove generator.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Before installing the ribbed belt, ensure that all subassemblies (generator, a/c compressor etc.) are securely mounted and turn freely. When installing belt, ensure correct seating in the belt pulleys! Reinstall all hose clamps, harness retainers and replace all removed cable ties as originally installed in production. |
- To aid in installation, drive generator mounting bushings back into mounting flanges approx. 4mm.
| CAUTION | Tight generator mounting bushings must be made to move freely in order to ensure sufficient clamping force at the specified bolt torque. |
- Note running direction of ribbed belt as previously marked and route as illustrated.
- Generator
- Ribbed belt
- Idler pulley
- Vibration damper
- Tensioning roller
- Install lock carrier with attachments --> «50 BODY, FRONT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) Front bumper cover, removing and installing.
- Before starting engine for first time, fill hydraulic oil in power steering reservoir.
| CAUTION | Power steering pump must NOT be allowed to run dry. Damage will result. |
- Fill engine oil and check oil level.
- Top up coolant --> 4.2 Liter V8 5V Engine Mechanical, Engine Code(s): BNS - 19 - ENGINE - COOLING SYSTEM for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/blowers-superchargers-turbochargers/#20l-4-cyl-4v-turbo-engine-mechanical-engine-codes-bpg-bwt) for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT 19 ENGINE - COOLING SYSTEM for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN «19 - ENGINE - COOLING SYSTEM»(/audi/a4/b7-2004-2009/remont/cooling-fan/#32l-v6-4v-engine-mechanical-engine-codes-bkh) for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH «19 - ENGINE - COOLING SYSTEM»(ref-278885-S21797592792008020700000) for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS «19 - ENGINE - COOLING SYSTEM»(ref-278884-S12212760292008020700000) for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF .
- Reconnect battery. Required steps «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting)
- Start engine and check belt routing.
- Check and adjust headlamps --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Tightening Torques (4.2L - RS4)
Tightening Torques
| Component - fastener | Nm |
|---|---|
| Coolant pipe bracket to generator - bolt | 9 |
| Terminal 30/B+ to generator - nut | 16 |
| Generator to engine - bolts | 22 |
| Tensioner to upper part of oil pan - bolts | 9 |
Starter - 1.8L 4-cylinder Turbo engine, removing and installing
Special tools, testers and auxiliary items required
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Lift vehicle.
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Scheme 92
- Remove nut at starter solenoid terminal B+ - 2 - and remove connector eyelet from terminal.
- Disconnect electrical connection for terminal 50 - 1 -.
- Remove insulator from positive connection on starter where applicable.
- Remove harness clamp - 4 -.
- Remove bolt - 3 - from engine block to starter bracket, and remove bracket.
Scheme 93
- Remove bolts - 1 - and - 2 -.
- Remove starter from below.
Installing
Install in reverse order of removal, noting the following
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torques
| Component - fastener | Nm | |
|---|---|---|
| M10 | 45 | |
| Starter to transmission bracket - bolt | M12 | 65 |
| Terminal B+ to starter - nut | 16 | |
Starter - 2.0L 4-cyl Turbo FSI engine, removing and installing
Special tools, testers and auxiliary items required
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Lift vehicle.
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Scheme 94
- Remove heat shield - 1 - for right drive shaft.
- Remove bolts - 1 - and - 2 -.
Scheme 95
- Remove starter and swing aside.
- Disconnect electrical connection for terminal 50 - 3 -.
- Remove nut - 1 - for harness clamp.
- Remove nut at starter solenoid terminal B+ - 2 - and remove connector eyelet from terminal.
- Remove starter.
Installing
Install in reverse order of removal, noting the following
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Starter to transmission - bolt | 65 |
| Terminal B+ to starter - nut | 16 |
Starter - 3.0L 6-cylinder engine, removing and installing
Special tools, testers and auxiliary items required
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Lift vehicle.
- Remove right front wheel.
- Remove generator --> «Generator (GEN) - 3.0L 6-cylinder engine, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__generator-gen-30l-6-cylinder-engine) .
Scheme 96
- Remove heat shield for right drive shaft - arrows -.
Scheme 97
- Remove nut at starter solenoid terminal B+ - 2 - and remove connector eyelet from terminal.
- Disconnect electrical connection for terminal 50 - 1 -.
- Remove solenoid heat shield - 3 -.
- Remove bolts - arrows - and remove starter.
Installing
Install in reverse order of removal, noting the following
- Install generator «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__installing)
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Starter to engine - bolt | 45 |
| Terminal B+ to starter - nut | 16 |
| Drive shaft heat shield to transmission - bolt | 23 |
Starter - 3.2L 6-cylinder FSI engine, removing and installing
Special tools, testers and auxiliary items required
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Lift vehicle.
- Remove right front wheel.
Note. Secure brake disc with a wheel bolt.
- Release fasteners - 1 3 - and remove front and rear noise insulation.
Scheme 98
- Remove right drive shaft heat shield - arrow -.
Vehicles with automatic transmission
- Remove right drive axle from transmission axle flange.
Continued for all
Scheme 99
- Remove nut at starter solenoid terminal B+ - 2 - and connection for terminal 50 - 3 -.
- Remove bolts - 1 - and - 4 -.
Vehicles with automatic transmission
- Remove starter towards rear of wheel housing.
Vehicles with standard transmission
- Remove starter from between transmission and subframe.
Note. For clarity, subframe shown removed in illustrations.
Installing
Install in reverse order of removal, noting the following
- Reinstall right drive axle from transmission axle flange. Refer to appropriate automatic transmission repair information, RG 40.
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Stater to transmission - bolt | 65 |
| Terminal B+ to starter - nut | 16 |
| Drive shaft heat shield to transmission - bolt | 23 |
Starter - 4.2L 8-cylinder engine (Audi S4), removing and installing
Special tools, testers and auxiliary items required
Scheme 100
- Engine support bridge 10-222 A
Scheme 101
- Shackle (set) 10-222 A/12
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Scheme 102
- Unclip engine cover - arrows -.
Scheme 103
- Attach shackle 10-222 A/12 to right rear lifting fixture on engine.
Note. Disregard - 1 -.
Scheme 104
- Assemble support bracket 10-222 A and place across fenders as illustrated.
- Attach shackle to lifting spindle.
- Turn lifting spindle to apply slight lifting tension to engine.
- Lift vehicle.
- Remove right front wheel.
- Release fasteners - 1 - , remove bolts - 2 - and remove noise insulation.
Scheme 105
- Remove anti-roll bar bracket nuts - 1... 4 -.
Scheme 106
- Remove nut - arrow - and remove harness retainer from mounting.
Scheme 107
- Remove nut - 3 -.
- Remove bolts - 1 - and - 2 - and remove right side engine mount carrier.
Scheme 108
- Remove right refrigerant line mounting - arrow -.
Scheme 109
- Disconnect electrical connection - 1 -.
- Remove bolts - arrows -.
- Remove right engine mount with bracket.
Vehicles with manual transmission
- Remove right drive shaft heat shield - arrow -.
Scheme 110
- Remove ground cable - 5 -.
- Remove nut at starter solenoid terminal B+ - 3 - and connection for terminal 50 - 4 -.
- Remove nut - 1 - and bolt - 2 -.
- Remove starter.
Vehicles with automatic transmission
- Remove heat shield - 1 - for drive shaft (right-side).
Scheme 111
- Remove earth cable - 1 -.
- Remove nut at starter solenoid terminal B+ - 3 - and connection for terminal 50 - 4 -.
- Remove bolts - 2 - and - 5 -.
- Remove starter.
Installing
Install in reverse order of removal, noting the following
- Install engine mounting and tighten subframe --> «40 - FRONT SUSPENSION»(/audi/a4/b7-2004-2009/remont/axle-shafts/#suspension-wheels-steering) .
- Install anti-roll bar --> «40 - FRONT SUSPENSION»(/audi/a4/b7-2004-2009/remont/axle-shafts/#suspension-wheels-steering) .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Starter to transmission - bolt | 65 |
| Terminal B+ to starter - nut | 16 |
| Ground cable to starter - bolt | 22 |
| Engine support to cylinder block - bolt | 42 1) |
| Drive shaft heat shield to transmission - bolt | 23 |
| 1) Insert with locking compound; locking compound. | |
Starter - 4.2L 8-cylinder FSI engine (Audi RS4), removing and installing
Special tools, testers and auxiliary items required
- Engine Support Bridge 10-222A
Scheme 112
- Insert Pad For Front Fender T40045
- Shackle (set) 10-222 A/12
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- VAG 1332 Torque wrench (or 40 - 200 Nm equivalent)
Removing
Note. When installing, reinstall all cable ties that were loosened or cut during removal in the same locations. Disconnect battery --> Battery in luggage compartment, disconnecting and connecting .
Scheme 113
- Remove rear engine cover by pulling up in direction of - arrows -.
- Remove left engine compartment cover - 1 -.
- Remove screws - arrows -.
- Remove air duct - 1 - and - 2 -.
- Remove engine compartment seal at lock carrier and fender edges.
Scheme 114
- To avoid damaging bolted fender edges with Engine Support Bridge 10-222A , place Insert Pad For Front Fender T40045 - arrows - on both sides between bolted fender edges and panel underneath.
Scheme 115
- Place Engine Support Bridge 10-222A on bolted fender edges. Locate engine support spindles at rear of crossbar as illustrated.
- Install Shackles 10-222A/12 at engine support bridge spindles.
- Pre-tension engine slightly with engine support bridge spindles.
- Lift vehicle.
- Remove right front wheel.
- Release fasteners - 1 - , remove screws - 2 - and remove front noise insulation.
- Remove left and right stabilizer bar mount nuts - 1 - and - 2 -.
- Swing stabilizer bar down.
- Remove wiring harness bracket at right engine console - arrows -.
- Remove nut - 3 -.
- Remove bolts - 1 - and - 2 - and remove right engine console.
- Disconnect electrical connector at right engine mount - 1 -.
- Remove screws - arrows - using a hex socket head wrench with ball head.
Scheme 116
- Remove engine mount nut - 1 - at right engine support.
- Remove engine mount and engine support.
- Remove right driveshaft heat shield - arrow -.
Scheme 117
- Remove screws - 2 - and - 4 - at starter heat shield.
- Remove nut - 3 - and screw - 1 -.
- Remove starter forward.
Scheme 118
- Release electrical connection - 2 - by pushing locking mechanism - arrow A - and pressing catch down - arrow B -.
- Remove nut - 1 - and remove terminal 30 ( B+ ) eyelet.
- Remove ground wire - 4 -.
- Cut through cable ties - 3 -.
- Remove starter.
Installing
Install in reverse order of removal, noting the following
Note. When installing, install cable ties at same location. Install engine console and tighten subframe --> 40 - FRONT SUSPENSION . Install stabilizer --> 40 - FRONT SUSPENSION . Connect battery. Required steps Connecting .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Starter to transmission - bolt | 65 |
| Terminal B+ to starter - nut | 16 |
| Ground cable to starter - bolt | 22 |
| Engine support to cylinder block - bolt | 42 1) |
| Heat shield for half-shaft to transmission - bolt | 23 |
| 1) Insert with locking compound; locking compound. | |
The instrument cluster contains an electronic speedometer, tachometer, liquid crystal (LCD) displays for odometer, trip odometer, digital clock with date, as well as analog coolant temperature and fuel level gauges. Control and warning lamps are situated within the speedometer and tachometer faces. Automatic transmission models also contain an LCD gear indicator display.
A "Drivers Information System" LCD is located between the tachometer and speedometer. Displayed information includes an auto check system, outside air temperature, automatic transmission range, radio frequency and selectable trip computer functions.
The optional Navigation system display is also included in the Drivers Information System (where applicable).
Instrument cluster, disposal
Note. Instrument cluster LCD display contains mercury. Faulty instrument clusters (not covered by new vehicle warranty) may need to be disposed of as hazardous waste. Always heed state/local regulations concerning disposal of hazardous waste.
On Board Diagnostic (OBD), function
The instrument cluster is controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If malfunctions occur in monitored sensors and components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot instrument cluster malfunctions and perform OBD program functions using VAS 5051/5052 tester in mode "Guided Fault Finding".
VAS 5051/5052 connected and in mode "Guided Fault Finding"
- Enter appropriate model, equipment and model year information and press ">" to confirm.
After the DTC memory of all control modules has been checked
- Press "Go to" "Go to" button
- Select: "Function / Component Selection"
- Select: "Body (Repair 01; 27; 50 - 97)"
- Select: "Electrical Equipment (Repair 01; 90 - 97)"
- Select: "01 - On Board Diagnostic (OBD) capable systems"
- Select: "Instrument Cluster"
- Select appropriate option
- Follow tester prompts.
Message "dEF" in trip recorder display
If the instrument cluster control module detects a DTC in permanent memory, letters "dEF" will appear in the trip recorder display.
- If "dEF" is displayed, Replace instrument cluster --> «Instrument cluster, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__instrument-cluster-removing-and-installing) .
Instrument cluster, removing and installing
Special tools, testers and auxiliary items required
Scheme 119
- Hook 3370
Removing
Note. Do not disassemble instrument cluster. Instrument clusters contain no field serviceable components. Should malfunctions occur, replace complete instrument cluster. If instrument cluster is to be replaced, connect VAS 5051/5052 and initiate OBD program option "Instrument cluster, replacing" --> On Board Diagnostic (OBD), function
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Pull steering wheel with adjusting mechanism fully out and move it downward.
Note. For clarity, steering wheel is shown removed in the following illustrations.
Scheme 120
- Pull off bottom cover - 1 - towards rear - arrows -.
Scheme 121
- Remove screws - arrows -.
Scheme 122
- Remove left instrument panel side cover - arrow - using hook 3370.
Scheme 123
- Reach through opening - arrow A - above fuse panel and push out instrument cluster in direction of - arrow B -.
Scheme 124
- Disengage lock on electrical connectors - arrow - and disconnect.
- Remove instrument cluster from instrument panel opening.
Installing
Install in reverse order of removal, noting the following
- After installation, perform functional test of instrument cluster.
- If instrument cluster is replaced, continue to follow VAS 5051/5052 tester prompts in conjunction with OBD program option "Instrument cluster, replacing" --> «On Board Diagnostic (OBD), function»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__on-board-diagnostic-obd-function)
Instrument cluster, rear view
Note. Do not disassemble instrument cluster. Instrument clusters contain no field serviceable components. All indicator warning lamps are Light Emitting Diodes (LED).
Scheme 125
- Should malfunctions occur, replace complete instrument cluster.
A - 32-pin multi-pin connector, green
B - 32-pin multi-pin connector, blue
Scheme 126
32-pin multi-pin connector, blue
- Washer fluid low
- Coolant level low
- Fuel gauge sensor
- Coolant temperature
- Push button circuit 2 Navigation system
- Push button circuit 3 Navigation system
- Push button circuit x Telematics
- Menu switch
- Vacant
- Front hood switch
- Fuel gauge sensor 2
- Menu switch (Out A)
- Vacant
- Vacant
- Vacant
- FDR/TCS (= ESP)
- Convenience CAN-Bus High
- Convenience CAN-Bus Low
- Infotainment CAN-Bus Low
- Infotainment CAN-Bus High
- Ambient temp. (input)
- S contact
- Oil level / oil temperature
- Self-levelling suspension
- Menu switch (enter)
- Vacant
- Vacant
- Menu switch (Out B)
- Vacant
- Transponder 2
- Transponder 1
- Terminal 31 (sensor)
Scheme 127
32-pin multi-pin connector, green
- Terminal 58d
- Terminal 30
- Terminal 15
- Vacant
- Speedometer (input)
- Speedometer (output 2)
- Airbag (inverted)
- Turn signal (right-side)
- Brake fluid low
- Turn signal (left-side)
- Turn signal (trailer)
- Powertrain CAN-Bus Low
- Powertrain CAN-Bus High
- Terminal 61 (generator charge warning)
- Vacant
- Oil pressure 2
- Terminal 58s
- Terminal 31 load
- Terminal 31 load
- Vacant
- Speedometer (output 1)
- ABS warning
- K wire
- CAN-Bus drive (display)
- Tank flap switch
- CAN-Bus diagnosis Low
- CAN-Bus diagnosis (display)
- CAN-Bus diagnosis High
- HRC (headlamp range control)
- Safety belt buckle
- External buzzer
- Brake pad wear
Fuel Level Sensor G - front-wheel drive, multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
Fuel level sensor is located under the floor covering in the luggage compartment.
- Remove luggage compartment floor lining.
- If necessary, fold right backrest of rear seat bench forwards.
Scheme 128
- Remove screws - arrows - and remove access panel.
Scheme 129
- Carefully unlock and disconnect 4-pin connector - arrow -.
Scheme 130
Pin assignment for 4-pin connector at fuel level sensor
- Fuel pump positive ( + )
- Sensor to fuel gauge
- Sensor Ground (GND) ( - )
- Fuel pump Ground (GND) ( - )
Fuel Level Sensor G , Fuel Level Sensor 2 G169 - quattro, multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
- Remove rear seat bench --> «72 - SEAT - FRAMES»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Fuel Level Sensor G
Scheme 131
- Remove screws - arrows - and remove right access panel.
Scheme 132
- Carefully release and disconnect 4-pin connector - arrow - (right-side).
Assignment of 4-pin connector at fuel level sensor.
- Fuel pump positive ( + )
- Sensor to fuel gauge
- Sensor Ground (GND) ( - )
- Fuel pump Ground (GND) ( - )
Fuel Level Sensor 2 G169
- Remove screws - arrows - and remove left access panel.
Scheme 133
- Carefully release and disconnect 4-pin connector - arrow - (left-side).
Assignment of 4-pin connector at fuel level sensor 2
- Vacant
- Sensor to fuel gauge
- Sensor Ground (GND) ( - )
- Vacant
Engine Coolant Temperature (ECT) Gauge Sensor G2 - 1.8L 4-cylinder Turbo engine, multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
Scheme 134
- Release fasteners and remove engine cover - arrows -.
Scheme 135
- Disconnect electrical connection - arrow - at sensor.
Scheme 136
Pin assignment for 4-pin connector at Engine Coolant Temperature (ECT) Gauge Sensor G2 G2
- Wiring from sensor to instrument cluster (temperature gauge)
- Ground (GND) ( - )
Engine Coolant Temperature (ECT) Sensor G62 - 2.0L 4-cylinder Turbo FSI engine, multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
Location: on rear right of engine.
Scheme 137
- Disconnect electrical connection at sensor - 1 -.
Scheme 138
Pin assignment for 2-pin connector on Engine Coolant Temperature (ECT) Sensor G62
- Wiring from sensor to instrument cluster (temperature gauge)
- Ground (GND) ( - )
Engine Coolant Temperature (ECT) Gauge Sensor G2 - 3.0L 6-cylinder engine, multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
Scheme 139
- Remove rear engine cover - arrows -.
Scheme 140
- Remove bolts for solenoid valve retaining plate - 3 - - arrows -.
- Remove air intake hose - 1 - at Mass Air Flow (MAF) Sensor G70.
- Remove hose - 4 - at air duct - 2 -.
Scheme 141
- Remove bolt - arrow - and pull off air duct - 2 - at throttle valve control module J338.
- Where applicable, remove hose - 1 - at air duct.
Note. For illustration purposes the air duct is shown from the rear with the engine removed.
Scheme 142
- Disconnect electrical connection - 2 - at sensor.
Note. Disregard - 1 -.
Pin assignment for 4-pin connector at Engine Coolant Temperature (ECT) Gauge Sensor G2
- Wiring from sensor to instrument cluster (temperature gauge)
- Ground (GND) ( - )
Engine Coolant Temperature (ECT) Sensor G62 - 3.2L 6-cylinder FSI engine, multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
- Remove front engine cover - arrows -.
Scheme 143
- Disconnect electrical connection at sensor - 2 -.
Note. Disregard - 1 -.
Pin assignment for 2-pin connector on Engine Coolant Temperature (ECT) Sensor G62
- Ground (GND) ( - )
- Wiring from sensor to instrument cluster (temperature gauge)
Engine Coolant Temperature (ECT) Sensor G62 - 4.2L 8-cylinder engine (Audi S4), multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
- Remove rear engine cover - arrows -.
Scheme 144
- Disconnect electrical connection - 1 - at sensor.
Note. Illustration shows engine removed.
Pin assignment for 4-pin connector at Engine Coolant Temperature (ECT) Sensor G62 - through 05.05
3 - Ground (GND) ( - )
4 - Wiring from sensor to instrument cluster (temperature gauge)
Pin assignment for 2-pin connector at Engine Coolant Temperature (ECT) Sensor G62 - from 06.05
- Ground (GND) ( - )
- Wiring from sensor to instrument cluster (temperature gauge)
Engine Coolant Temperature (ECT) Sensor G62 - 4.2L 8-cylinder engine (Audi RS4), multi-pin connector assignments
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Preparations
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Scheme 145
- Disconnect electrical connection - 1 - at sensor.
Note. Engine Coolant Temperature (ECT) Gauge Sensor G62 is accessible from lower right with engine installed. Engine shown removed for clarity.
Pin assignment for 2-pin connector at Engine Coolant Temperature (ECT) Gauge Sensor G62
- Wiring from sensor to instrument cluster (temperature gauge)
- Ground (GND) ( - )
Radio Frequency Controlled Clock Receiver J489 , removing and installing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Note. J489 only where applicable.
Removing
- Remove rear bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 146
- Disconnect electrical connection - 3 - at receiver - 2 -.
- Remove bolts - 1 - and remove receiver.
Installing
Install in reverse order of removal, noting the following
- Install rear bumper cover: --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Windshield wiper system, removing and installing
Special tools, testers and auxiliary items required
Scheme 147
- Removal lever 80-200
- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
Removing
- Remove rubber seal of plenum chamber cover in direction of - arrow -.
- Remove plenum chamber cover - 1 - to front.
Wiper arms, removing
- Actuate touch-wipe function and allow wiper motor to move to end position.
Scheme 148
- Use screwdriver to pry off caps - 3 -.
- Loosen nuts - 4 - (do not remove).
- Loosen wiper arms - 2 - from wiper shaft by tilting slightly.
- Remove nuts completely and remove wiper arms.
Note. Should wiper arms be difficult to remove, use appropriate puller. Remove retaining clips - 1 - and detach cowl panel grille - 5 -.
Wiper assembly, removing
Scheme 149
- Remove cover for electronics box in plenum chamber - arrows -.
Scheme 150
- Pry off wiper linkage - 2 - from ball head using lever 80-200.
- Remove crank from wiper motor.
- Unclip pipe/hose guides at wiper frame.
- Remove bolts - arrows - and detach entire wiper frame - 1 -.
- Disconnect electrical connection.
Wiper motor, removing fom frame
Scheme 151
- Remove bolts - arrows - and remove wiper motor from wiper frame.
Installing
Install in reverse order of removal, noting the following
- Secure wiper motor without crank to wiper frame - arrows -.
- Reconnect electrical connectors at wiper motor.
- Fit wiper motor with wiper frame in vehicle and loosely install bolts.
Scheme 152
- Press wiper linkage in to stop in direction of - arrow - and tighten bolt - 1 -.
- Then tighten bolts - 2 - and - 3 - in sequence.
- Actuate touch-wipe function and allow wiper motor to move to end position.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 153
- Check and if necessary, align crank - 1 - with wiper frame.
- Angle α = 2 degrees
- Hold crank in position and hand-tighten nut - 2 - so setting is not altered.
- Then brace crank with an open-end wrench and tighten nut fully.
- Switch on ignition.
- Actuate touch-wipe function and allow wiper motor to move to end position.
- Check that angle - α - is attained; re-align if necessary.
Note. Shown with wiper frame removed for illustration purposes. Set wiper blades to park position --> Windshield wiper blade park position, adjusting .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Wiper crank to wiper motor - nut | 18 |
| Wiper motor to wiper frame - bolt | 9 |
| Wiper frame to plenum chamber - bolt | 8 |
Windshield wiper blade park position, adjusting
Procedure
- Switch on ignition.
- Actuate touch-wipe function and allow wiper motor to move to end position.
- Switch off ignition.
Scheme 154
- Position wiper blades on windshield and align as follows
- Dimension - a - = 24 mm.
- Dimension - b - = 44 mm.
Note. The figures given here are the distances between wiper blades and cowl panel grille of plenum chamber at bottom edge of windshield. Tighten nuts for wiper arms. Switch on ignition. Actuate touch-wipe function and allow wiper motor to move to end position. Switch off ignition. If necessary, re-align wiper arms and tighten nuts again.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Wiper arm - nut | 21 |
Windshield wiper blade - through 10.04, replacing
Removing
- Lift wiper arm off windshield.
Scheme 155
- Press release button at linkage - arrow -.
- Remove wiper blade - 2 - from wiper arm - 1 - downwards.
Installing
Scheme 156
- When installing wiper blade - 2 - on drivers side, ensure blade engages in lug and retainer at spoiler engages in wiper blade.
- Lock wiper blade by pressing release button.
Scheme 157
1 - Wiper blade mount
- For drivers side (with spoiler)
- Removing and installing --> «Windshield wiper blade mount - through 10.04, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__windshield-wiper-blade-mount-through)
2 - Release button
3 - Spacer
- Removing and installing --> «Windshield wiper blade mount - through 10.04, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__windshield-wiper-blade-mount-through)
4 - Wiper arm
Windshield wiper blade mount - through 10.04, removing and installing
Removing
- Lift wiper arm off windshield.
- Press release button at linkage - arrow -.
- Remove wiper blade - 2 - from wiper arm - 1 - downwards.
Scheme 158
- Release the retaining lug on release button - arrow 1 -.
- Pivot the release button upwards.
- Pull release button out of wiper arm - arrow 2 -.
Scheme 159
- Press the sides of wiper mounting - 1 - inwards - arrows -.
- Remove wiper mounting from wiper arm - 2 -.
Scheme 160
- Press the spacer together at retaining lugs - 1 -.
- Remove spacer from wiper arm - 2 -.
Installing
Install in reverse order of removal.
Windshield wiper blade - from 11.04, replacing
Removing
Scheme 161
- Slide clip - 2 - off wiper arm - 3 - in direction of - arrow -.
- Remove wiper blade - 1 - downwards from wiper arm.
Installing
Scheme 162
- Insert joint of wiper arm in guide on wiper blade - arrow 1 -. Ensure joint is inserted fully in guide.
- Secure wiper blade by fitting retaining clip - arrow 2 -.
Washer fluid reservoir - Audi A4 S4, removing and installing
Top section of reservoir, removing
- Remove left engine cover - 1 -.
Scheme 163
- Where applicable, remove overflow hose - 2 - from reservoir - 3 -.
- Remove nut - 1 - and bolt - 4 -.
- Pull top section of reservoir upwards out of bottom section.
Bottom section of reservoir, removing
- Remove left front wheel.
- Remove left front wheel housing liner --> «66 EXTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 164
- Remove bottom section of reservoir - 2 - - arrows -.
- Swivel bottom section of reservoir slightly to rear.
Note. If it is not possible to swivel bottom section of reservoir, remove bolt - 4 - and detach cross member - 1 -. Where applicable, detach overflow hose - 3 - from reservoir section.
Scheme 165
- Disconnect electrical connections - 2... 4 -.
- Press release tab and pull off hose connector - 1 -.
- Pull off washer fluid pipe - 5 -.
- Remove washer fluid reservoir downwards.
Installing
Install in reverse order of removal, noting the following
Note. Clean thread of bolts from remnants of locking fluid using wire brush. Then apply locking fluid and fit bolts. Locking fluid. Clean tapped holes from remnants of self-locking bolts or locking fluid (e.g. using a thread tap). Otherwise the bolts can shear off if they have to be removed again later. When installing, ensure that the water hose audibly engages in the connection on the washer fluid pump.
Scheme 166
- Tighten bolts in sequence - 1... 3 -.
Tightening torques
| Component - fastener | Nm | |
|---|---|---|
| Self-locking bolt M6 | 18 1) 2) | |
| Top section of reservoir to body | Nut | 5.5 |
| Bottom section of reservoir to body - screw | 7 | |
| 1) Replace bolt. 2) Insert with locking compound; locking compound. | ||
Washer fluid reservoir - Audi RS4, removing and installing
Top section of reservoir, removing
- Remove left engine cover - 1 -.
- Where applicable, remove overflow hose - 2 - from reservoir - 3 -.
- Remove nut - 1 - and bolt - 4 -.
- Pull top section of reservoir upwards out of bottom section.
Bottom section of reservoir, removing
- Upper part of reservoir removed.
- Remove left front wheel.
- Remove left front wheel housing liner --> «66 EXTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 167
- Remove screws - arrows A -.
- Remove screws - arrows B - and remove crossbar - 4 -.
- Disconnect electrical connection - 1 - and remove washer fluid line - 2 - from retainer.
- Pivot lower part of washer fluid reservoir - 3 - slightly toward rear.
Scheme 168
- Release clamp and remove hose - 2 -.
- Remove hose - 1 -.
- Disconnect electrical connections - 3 - and - 4 -.
- Remove washer fluid reservoir downward.
Installing
Install in reverse order of removal, observing the following
Note. Clean screw threads installed with locking compound using a wire brush. Then insert screws with locking compound. Locking compound. Threaded holes that had self-locking screws or screws installed with locking compound must be cleaned (e.g. with a thread tap). Otherwise screws may shear off when reinstalled. When positioning hose, ensure it engages audibly in washer fluid pump connection.
Scheme 169
- Tighten screws in sequence - 1 to 5 -.
- Install upper part of reservoir.
Tightening torques
| Component - fastener | Nm | |
|---|---|---|
| Upper part of reservoir to | Self-locking bolt M6 | 18 1) 2) |
| Body | Nut | 5,5 |
| Lower part of washer fluid reservoir to chassis | 5,5 | |
| 1) Replace bolt. 2) Insert with locking compound; locking compound. | ||
Windshield washer spray jets, removing and installing
Removing
Scheme 170
- Unclip base of spray jet (bottom) from front hood - arrow -.
Scheme 171
- Remove hose - 1 - from spray jet.
- Where applicable, disconnect electrical connection - 2 -.
Installing
Install in reverse order of removal, noting the following
- When positioning hose, ensure it engages audibly in spray nozzle connection.
Scheme 172
- Place spray nozzles in hood so that oval opening - arrow - for individual spray nozzles face windshield.
- When installing hose, ensure hose audibly engages in the connection on spray jet.
Windshield washer spray jets, adjusting
Special tools, testers and auxiliary items required
Scheme 173
- Adjusting tool T10127 fitted with needle 3125/5 A
Scheme 174
Adjustment
Note. The adjustment dimensions indicate the values for a moving vehicle, i.e. the spray from the jets is slightly offset when the vehicle is stationary. Use water-soluble pen to mark the four points on windshield: Dimension - a - = 250... 275 mm Dimension - b - = 465... 490 mm Dimension - c - = 270 415 mm Dimension - d - = 140... 225 mm Align individual washer jets with these points using adjusting tool.
Scheme 175
1 - Connecting pipe
- For spray jet
2 - Nut, 12 Nm
3 - Spray jet
- Removing and installing --> «Rear window washer spray jet, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-window-washer-spray-jet-removing)
- Adjusting --> «Rear window washer spray jet, adjusting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-window-washer-spray-jet-adjusting)
4 - Cap for rear wiper
5 - Wiper arm
- Removing and installing --> «Rear window wiper arm, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-window-wiper-arm-removing-and)
6 - Wiper blade
- Replacing --> «Rear window wiper blade, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-window-wiper-blade-replacing)
Rear window washer spray jet, removing and installing
Removing
Scheme 176
- Carefully pry apart ends of cap - 3 - and remove from wiper arm - 1 -.
- Carefully pull spray jet - 2 - off connecting pipe.
Installing
Install in reverse order of removal, noting the following
- Insert spray jet with spray opening pointing into recess on wiper arm.
Rear window washer spray jet, adjusting
Special tools, testers and auxiliary items required
- Adjusting tool T10127 fitted with needle 3125/5 A
Procedure
Scheme 177
- Adjust washer jets using adjusting tool T10127 so that water jets spray rear window at points indicated above wiper.
- Dimension - a - = approx. 125 mm
- Dimension - b - = approx. 295 mm
- Dimension - c - = approx. 5 mm
Rear window wiper arm, removing and installing
Removing
- Switch on ignition.
- Actuate rear wiper and allow wiper arm to move to end position.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 178
- Carefully pry cap apart slightly - arrows - and lift off.
Scheme 179
- Carefully detach spray jet - 2 -.
- Loosen nut - 1 - (do not remove).
- Loosen wiper arms from wiper shaft by tilting slightly, remove nut and remove wiper arm.
Installing
Install in reverse order of removal, noting the following
- Adjust wiper arm --> «Rear window wiper arm park position, adjusting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Tightening torque
| Component | Nm |
|---|---|
| Nut for wiper arm | 12 |
Scheme 180
Procedure
- Apply wiper arm with wiper blade fitted at wiper shaft and align wiper blade on rear window as follows.
- Dimension - a - = 15... 20 mm
Note. The dimension indicates distance between tip of wiper blade and bottom edge of window. Switch on ignition. Actuate rear wiper and allow wiper arm to move to end position. Check setting of wiper arm again; correct as necessary.
Tightening torque
| Component | Nm |
|---|---|
| Nut for wiper arm | 12 |
Rear window wiper blade, replacing
Removing
- Lift wiper arm off rear window.
Scheme 181
- Release retaining clips - arrows - using a screwdriver and take wiper blade - 2 - out of wiper arm - 1 -.
Installing
Install in reverse order of removal, noting the following
- The wiper blade can only be fitted in one position.
- The wiper blade must engage audibly in the wiper arm.
Scheme 182
1 - Nut, 8 Nm
2 - Wiper motor
- Removing and installing --> «Rear window wiper motor, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-window-wiper-motor-removing-and)
3 - Rubber grommet
4 - Washer fluid hose
Rear window wiper motor, removing and installing
Removing
- Remove wiper arm --> «Rear window wiper arm, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-window-wiper-arm-removing-and) .
- Remove lower rear lid trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 183
- Disconnect electrical connection - 2 -.
- Disconnect washer fluid hose - 1 - from connecting pipe for spray jet.
- Loosen nuts - arrows - and detach wiper motor.
Installing
Install in reverse order of removal, noting the following
- Carefully insert rubber grommet into hole in rear window.
- Fluid hose must audibly engage in spray jet connection.
- Switch on ignition.
- Actuate rear wiper and allow wiper motor to move to end position.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Install lower rear lid trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Adjust wiper arm --> «Rear window wiper arm park position, adjusting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
| Component - fastener | Nm |
|---|---|
| Wiper motor to rear lid - nut | 8 |
Washer fluid reservoir, removing and installing
Note. The combined windshield washer fluid reservoir for front and rear windshield washer system is located in engine compartment at front left. Removing and installing on A4 and S4 --> Washer fluid reservoir - Audi A4 S4, removing and installing . Removing and installing on RS4 --> Washer fluid reservoir - Audi RS4, removing and installing
Headlamp washer spray jets, removing and installing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Removing
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 184
- Pull cover of spray jet upwards away from bumper cover and carefully disengage retainers - arrow -.
Scheme 185
- Release clamp and remove hose - 3 -.
- Remove screws - 1 - and - 2 - and detach spray jet.
Installing
Install in reverse order of removal, noting the following
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Spray jet to bumper cover - screw | 3 |
Headlamp washer spray jets, adjusting
Note. Washer jets are pre-set at the factory and do not have to be adjusted following installation.
Note. The washer fluid reservoir supplies both the windshield and the headlamp washer systems; it is located in the engine compartment (front left). Removing and installing on A4 and S4 --> Washer fluid reservoir - Audi A4 S4, removing and installing . Removing and installing on RS4 --> Washer fluid reservoir - Audi RS4, removing and installing .
Removing
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Note. To protect the bumper cover, place a cloth under pliers before taking hold of the spray jet.
Scheme 186
- Pull cover - 1 - of spray jet - 2 - upwards away from bumper cover and carefully disengage retainers in direction of - arrow -.
Scheme 187
- Release clamp and remove hose - 1 - at spray jet - 2 -.
- Remove screws - arrows - and detach spray jet.
Installing
Install in reverse order of removal, noting the following
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Spray jet to bumper cover - screw | 3 |
Note. Washer jets are pre-set at the factory and do not have to be adjusted following installation.
Note. The washer fluid reservoir supplies both the windshield and the headlamp washer systems; it is located in the engine compartment (front left). Removing and installing on A4 and S4 --> Washer fluid reservoir - Audi A4 S4, removing and installing . Removing and installing on RS4 --> Washer fluid reservoir - Audi RS4, removing and installing .
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the standard or optional headlamp or lighting system. Always read the owners manual and review applicable headlamp system functions.
Note. Additional information
Owners Manual
Self Study Program - Course Number 991103 "2002 Audi A4 Technical Features"
Wiring Diagrams Component Locations
| CAUTION | Before beginning repairs on electrical system Switch off all electrical consumers. Switch ignition off and remove ignition key. |
On Board Diagnostic (OBD), functions
Headlamp system functions are controlled by the Vehicle Electrical System Control Module J519 which has On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot headlamp system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".
Halogen headlamps, assembly
Note. After performing any repairs or service that could affect headlight aim, check/adjust aim.
Scheme 188
1 - Trim cover
2 - Headlamp housing
3 - Vent element
4 - Turn signal/parking lamp bulb
- 12 V, 27/7 W
- Orange
- Replacing --> «Turn signal/parking lamp bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__turn-signalparking-lamp-bulb-replacing)
5 - Bulb holder
- For turn signal/parking lamp bulb
6 - Housing cover
- For low beam headlamps
7 - Left Low Beam Headlamp M29 , Right Low Beam Headlamp M31 - bulb
- H7 - 12 V, 55 W
- Replacing --> «Low Beam Headlamp M29 / M31 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__low-beam-headlamp-m29-m31)
8 - Housing cover
- For high beam headlamps
9 - Left High Beam Headlamp M30 , Right High Beam Headlamp M32 - bulb
- H7 - 12 V, 55 W
- Replacing --> «High Beam Headlamp M30 / M32 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__high-beam-headlamp-m30-m32)
10 - Screw - 6 Nm
11 - Vent element
12 - Screw - 6 Nm
13 - Stop bolt
- For aligning headlamp housing with body contour
- Must make contact with lock carrier
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Left headlamp
- Remove left engine cover - 1 -.
Right headlamp
- Remove applicable right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 189
Both sides, continued
- Use adhesive tape to mask area beneath headlamp to prevent damage to paintwork.
- Remove screws - 1 - and - 5 -.
- Loosen screws - 2 - and - 4 - (do not remove).
- Where applicable, remove cable tie.
- Disconnect electrical connection - 3 -.
- Remove headlamp from body towards front.
Install in reverse order of removal, noting the following
Scheme 190
- Check whether both vent elements have been inserted on underside of headlamp - detail -.
- Slide headlamp horizontally onto lower headlamp mounting as far as it will go.
Scheme 191
- Position stop screw - 1 - so it makes contact with lock carrier.
- Use stop screw to align headlamp with body contours (gap widths).
Note. Pay attention to area around fender opening when aligning headlamp. Tighten screws - 2... 5 -. Following installation, check and adjust headlamps if necessary --> 00 - TECHNICAL DATA .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Headlamp to lock carrier - screw | 6 |
Headlamps, adjusting
Headlamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
Headlamps, service preparation
The following engine-dependent procedures are required in order to replace certain headlamp bulbs.
Preparation - vehicles with 1.8L 4-cylinder Turbo engine
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Procedure
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 192
- Disconnect electrical connections
- at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- at Mass Air Flow (MAF) Sensor G70
- at Wastegate Bypass Regulator Valve N75
- Disconnect hoses - 4... 7 -.
- Disconnect hose leading to secondary air pump.
- Seat aside wiring.
- Release fasteners at air cleaner housing - 8 -.
- Remove air cleaner housing.
Note. The vacuum line leading to combination valve for secondary air is clipped onto the underside of the air intake hose.
Install in reverse order of removal.
Preparation - vehicles with 3.0L 6-cylinder engine
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Procedure
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 193
- Pull off lines and disconnect electrical connections
- at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- vacuum hose at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- at Mass Air Flow (MAF) Sensor G70
- Pull off hose connections and set aside lines - 4 - and - 5 -.
- Remove air cleaner housing - arrows -.
Install in reverse order of removal.
Low Beam Headlamp M29 / M31 - bulb, replacing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Left headlamp
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamps-removing-and-installing) .
Right headlamp - vehicles with 1.8L 4-cylinder Turbo engine
- Preparation.
Right headlamp - vehicles with 3.0L 6-cylinder engine
- Preparation.
Both sides, continued
Scheme 194
- Release retaining clip - arrow - and detach housing cover for low beam from headlamp housing.
Scheme 195
- Disconnect electrical connection - 2 - at low beam bulb.
- Disengage retaining clip - 1 - and remove bulb - 3 - from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb and secure with retaining clip.
- Secure housing cover with retaining clip.
High Beam Headlamp M30 / M32 - bulb, replacing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Left headlamp
- Remove left engine cover - 1 -.
Scheme 196
- Disconnect electrical connections - 1 - and - 2 - from retainer.
- Unclip retainer for connectors and pull off upwards - arrow -.
Right headlamp - vehicles with 1.8L 4-cylinder Turbo engine
- Preparation.
Right headlamp - vehicles with 3.0L 6-cylinder engine
- Preparation.
Scheme 197
Both sides, continued
- Release retaining clip - arrow - and detach housing cover for high beam headlamp bulb from headlamp housing.
Scheme 198
- Disconnect electrical connection - 3 - at high beam headlamp bulb.
- Release retaining clip - 2 - and remove bulb - 1 - from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Secure bulb with retaining clip.
- Secure housing cover with retaining clip.
Turn signal/parking lamp bulb, replacing
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamps-removing-and-installing) .
Scheme 199
- Turn bulb holder - arrow - counter-clockwise and remove from housing.
- Pull bulb out of bulb holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Headlamp securing lugs, servicing
Note. If headlight securing lugs break due to application of excessive force, it may still be possible to service headlight in a cost effective manner (though headlight housing must not be damaged). Different repair sets are available for left and right headlight.
Procedure
- Remove headlamp with broken retaining tab --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamps-removing-and-installing) .
Scheme 200
- Remove remains of broken lug - 3 - and - 4 - on headlamp housing.
- Attach lug - 2 - from repair kit to edge of headlight housing and secure it with two screws - 1 -.
Tightening torque
| Component | Nm |
|---|---|
| Headlamp to lock carrier | 6 |
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the standard or optional headlamp or lighting system. Always read the owners manual and review applicable system functions.
Note. Additional information
Owners Manual
Self Study Program - Course Number 991503 "The 2005 Audi A4"
Wiring Diagrams Component Locations
| CAUTION | Before beginning repairs on electrical system Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Headlamp system functions are controlled by the Vehicle Electrical System Control Module J519 which has On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot headlamp system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".
Note. After performing any repairs or service that could affect headlight aim, check/adjust aim.
Scheme 201
1 - Headlamp housing
- Removing and installing --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
2 - Screw - 4.5 Nm
3 - Left High Beam Headlamp M30 , Right High Beam Headlamp M32 - bulb
- H7 - 12 V, 55 W
- Replacing --> «High Beam Headlamp M30 / M32 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
4 - Housing cover
- For high beam/parking lamps
5 - Bulb holder
- For bulb for parking lamps
6 - Left Parking Lamp M1 , Right Parking Lamp M3 - bulb
- 12 V, 5 W
- W5W, Longlife - white
- Replacing --> «Parking Lamp M1 / M3 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__parking-lamp-m1-m3)
7 - Screw - 4.5 Nm
8 - Housing cover
- For low beam headlamps
9 - Left Low Beam Headlamp M29 , Right Low Beam Headlamp M31 - bulb
- H7 - 12 V, 55 W
- Replacing --> «Low Beam Headlamp M29 / M31 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
10 - Bulb holder
- For turn signal lamp bulb
11 - Left Front Turn Signal Lamp M5 , Right Front Turn Signal Lamp M7 - bulb
- 12 V, 21 W
- Replacing --> «Front Turn Signal Lamp M5 / M7 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__front-turn-signal-lamp-m5)
12 - Trim cover
Headlamps, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 202
- Remove screw - 3 -.
- Loosen screws - 1 - and - 2 - (do not remove).
- Remove headlamp from body towards front.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
Scheme 203
- Check adjusting nut - 1 - of adjuster for freedom of movement - arrows -.
- Screw in adjusting nut as far as it will go, but do not tighten.
- Insert headlamp and tighten screws - 1... 3 - two complete turns.
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Align headlamp with body contours and front bumper cover (note gap widths).
- Tighten screws in sequence - 2 - , - 1 - and - 3 -.
Note. When screws are tightened the adjusting nut of the adjuster element automatically rotates against the mounting point of the headlamp housing and fixes it in place. Check gaps; if necessary, repeat procedure for installing headlamp. Following installation, check and adjust headlamps if necessary --> 00 - TECHNICAL DATA .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Headlamp to lock carrier - screw | 4.5 |
Headlamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 204
- Release retaining tab - arrow - and detach housing cover from headlamp housing.
Scheme 205
- Remove bulb - 2 - from spring clips - arrows -.
- Disconnect electrical connection - 1 - at low beam bulb.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb into housing.
- Position bulb at lower spring clip.
- Push bulb beyond resistance of upper spring clips into housing.
- Reconnect electrical connection and close housing cover.
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 206
- Release retaining clip - arrow - and detach housing cover for high beam/parking lamps from headlamp housing.
Scheme 207
- Remove bulb - 1 - from spring clips - arrows -.
- Disconnect electrical connection - 2 - at high beam headlamp bulb.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb into housing.
- Position bulb at lower spring clip.
- Push bulb beyond resistance of upper spring clips into housing.
- Plug in connector and close housing cover.
- Secure housing cover with retaining clip.
Parking Lamp M1 / M3 - bulb, replacing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Release retaining clip - arrow - and detach housing cover for high beam/parking lamp from headlamp housing.
- Remove high beam headlamp bulb - 1 - from spring clips - arrows -.
Note. Disregard - 2 -.
Scheme 208
- Pull bulb holder - 1 - from housing - arrow -.
- Pull bulb out of bulb holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert new bulb in bulb holder.
- Press parking lamp bulb holder into reflector until felt to engage.
- Position high beam headlamp bulb at lower spring clip.
- Push high beam headlamp bulb into housing (overcome resistance of upper spring clips).
- Close housing cover.
- Secure housing cover with retaining clip.
Front Turn Signal Lamp M5 / M7 - bulb, replacing
Removing
Left headlamp
- Remove washer fluid reservoir --> «Washer fluid reservoir - Audi A4 S4, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__washer-fluid-reservoir-audi-a4) .
Right headlamp
- Lift vehicle.
- Remove right front wheel.
Scheme 209
- Remove screws - arrows -.
- Remove forward portion of wheel housing liner.
Scheme 210
Continuation for all
- Turn bulb holder - 3 - counter-clockwise - arrow - and pull out from housing.
- Screw bulb out of holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing bulb holder, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in bulb holder.
- Markings - 1 - and - 2 - must be opposite each other when inserting bulb holder into housing.
Left headlamp
- Install washer fluid reservoir --> «Washer fluid reservoir - Audi A4 S4, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__washer-fluid-reservoir-audi-a4) .
Right headlamp
- Install wheel housing liner --> «66 EXTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Note. If headlight securing lugs break due to application of excessive force, it may still be possible to service headlight in a cost effective manner (though headlight housing must not be damaged). Different repair sets are available for left and right headlight.
Procedure
- Remove headlamp with broken lug --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove remains of broken lugs from headlamp housing.
Scheme 211
- Fit lugs - 2 - and - 3 - from repair kit on headlamp housing and secure with screws - 1 - and - 4 -.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Headlamp to lock carrier - screw | 4.5 |
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the standard or optional headlamp or lighting system. Always read the owners manual and review applicable system functions.
Note. Additional information
Owners Manual
Self Study Program - Course Number 991103 "2002 Audi A4 Technical Features"
Wiring Diagrams Component Locations
| CAUTION | Before beginning repairs on electrical system Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Headlamp system functions are controlled by the Vehicle Electrical System Control Module J519 which has On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot headlamp system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".
Headlamps with High Intensity Gas Discharge (HID) Lamps, assembly
Note. After performing any repairs or service that could affect headlight aim, check/adjust aim.
Scheme 212
1 - Screw - 1.5 Nm
2 - High intensity gas discharge (HID) lamp control module
- For vehicles through approx. 09.01
- Left High Intensity Gas Discharge (HID) Lamp Control Module J343
- Right High Intensity Gas Discharge (HID) Lamp Control Module J344
- Removing and installing --> «High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344 - through approx. 09.01, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__high-intensity-gas-discharge-hid-lamp)
3 - Headlamp housing
4 - Vent element
- 2x
5 - Turn signal/parking lamp bulb
- 12 V, 27/7 W
- Orange
- Replacing --> «Turn signal/parking lamp bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
6 - Bulb holder
- For turn signal
7 - High intensity gas discharge (HID) low beam headlamp bulb
- Where applicable - vehicles through approx. 09.01
- 35 W, D2S
- Replacing --> «HID low beam headlamp bulb - through approx. 09.01, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__hid-low-beam-headlamp-bulb)
8 - Housing cover
- For low beam headlamps
9 - High intensity gas discharge (HID) low beam headlamp lamp bulb
- Where applicable - vehicles from approx. 09.01
- 35 W, D1S
- Replacing --> «HID low beam headlamp bulb - from approx. 09.01, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__hid-low-beam-headlamp-bulb)
10 - Housing cover
- For high beam headlamps
11 - Left High Beam Headlamp M30 , Right High Beam Headlamp M32 - bulb
- H7 - 12 V, 55 W
- Replacing --> «High Beam Headlamp M30 / M32 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
12 - Headlamp beam adjustment motor
- Left Headlamp Beam Adjustment Motor V48
- Right Headlamp Beam Adjustment Motor V49
- Removing and installing --> «Headlamp Beam Adjustment Motor V48 / V49, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamp-beam-adjustment-motor-v48)
13 - O-ring
- For headlamp beam adjustment motor
14 - 6 Nm
15 - Stop bolt
- For aligning headlamp housing with body contour
- Must make contact with lock carrier
16 - Trim cover
17 - Adapter lead
- For vehicles from approx. 09.01
- Removing and installing --> «High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344 - from approx. 09.01, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__high-intensity-gas-discharge-hid-lamp)
18 - High intensity gas discharge (HID) lamp control module
- For vehicles from approx. 09.01
- Left High Intensity Gas Discharge (HID) Lamp Control Module J343
- Right High Intensity Gas Discharge (HID) Lamp Control Module J344
- Removing and installing --> «High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344 - from approx. 09.01, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__high-intensity-gas-discharge-hid-lamp)
19 - Screw - 1.5 Nm
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Left headlamp
- Remove left engine cover - 1 -.
Right headlamp
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Both sides, continued
- Use adhesive tape to mask area beneath headlamp to prevent damage to paintwork.
- Remove screws - 1 - and - 5 -.
- Loosen screws - 2 - and - 4 - a few turns but do NOT remove completely.
- Where applicable, cut through cable tie.
- Disconnect electrical connection - 3 -.
- Remove headlamp from body towards front.
Install in reverse order of removal, noting the following
- Check whether both vent elements have been inserted on underside of headlamp - detail -.
- Slide headlamp horizontally onto lower headlamp mounting as far as it will go.
- Position stop screw - 1 - so that it makes contact with lock carrier.
- Use stop screw to align headlamp with body contours (gap widths).
Note. Pay attention to area around fender panel opening when aligning headlamp. Tighten screws - 2... 5 -. Reconnect battery. Required steps Reconnecting . Following installation, check and adjust headlamps if necessary --> 00 - TECHNICAL DATA .
Tightening torque
| Component | Nm |
|---|---|
| Headlamp to lock carrier | 6 |
Headlamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
The following engine-dependent procedures are required in order to replace certain headlamp bulbs.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Procedure
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Disconnect electrical connections
- at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- at Mass Air Flow (MAF) Sensor G70
- at Wastegate Bypass Regulator Valve N75
- Disconnect hoses - 4... 7 -.
- Disconnect hose leading to secondary air pump.
- Set aside wiring.
- Release fasteners at air cleaner housing - 8 -.
- Remove air cleaner housing.
Note. The vacuum line leading to combination valve for secondary air is clipped onto the underside of the air intake hose.
Install in reverse order of removal.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Procedure
- Remove cover (right-side) - 1 - in engine compartment.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Pull off lines / disconnect electrical connections
- at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- vacuum hose at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- at Mass Air Flow (MAF) Sensor G70
- Pull off hose connections, set aside hoses and remove air cleaner housing - arrows
Note. Disregard - 4 - and - 5 -.
Install in reverse order of removal.
Preparation - 4.2L 8-cylinder engine
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Procedure
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 213
- Disconnect electrical connection - 2 - at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80.
- Disconnect electrical connection - 3 - at Mass Air Flow (MAF) Sensor G70.
- Disconnect hose - 1 - to secondary air pump.
- Remove air intake hose - 4 - at Mass Air Flow (MAF) Sensor G70.
- Set aside wiring harness at air cleaner housing.
- Release fastener - arrow - and remove air cleaner housing together with Mass Air Flow (MAF) Sensor G70.
Install in reverse order of removal.
HID low beam headlamp bulb - through approx. 09.01, replacing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Left headlamp
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Right headlamp - vehicles with 1.8L 4-cylinder Turbo engine
- Preparation.
Right headlamp - vehicles with 3.0L 6-cylinder engine
- Preparation.
Right headlamp - vehicles with 4.2L 8-cylinder engine
- Preparation.
Both sides, continued
- Release retaining clip - arrow - and detach housing cover for low beam from headlamp housing.
Scheme 214
- Remove connector - 1 - at HID headlamp bulb by turning counter-clockwise.
- Release retaining clip - arrows - and pull HID headlamp bulb from housing.
Faulty HID headlamp bulb disposal --> HID headlamp bulb, disposal
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert new HID headlamp bulb in housing.
Note. Heed installation position: lug at top of bulb holder must engage in recess of HID headlamp bulb. Secure HID headlamp bulb with retaining clip. Secure housing cover with retaining clip. Reconnect battery. Required steps Reconnecting .
HID headlamp bulb, disposal
Note. HID headlamp bulbs contain mercury. Faulty HID headlamp bulbs (not covered by new vehicle warranty) may need to be disposed of as hazardous waste. Always heed state/local regulations concerning disposal of hazardous waste.
HID low beam headlamp bulb - from approx. 09.01, replacing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
Left headlamp
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Right headlamp - 1.8L 4-cylinder Turbo engine
- Preparation.
Right headlamp - 3.0L 6-cylinder engine
- Preparation.
Right headlamp - 4.2L 8-cylinder engine
- Preparation.
Both sides, continued
- Release retaining clip - arrow - and detach housing cover for low beam from headlamp housing.
Scheme 215
- Release retaining clip - 2 - and remove HID headlamp bulb - 3 - from housing.
- Disconnect electrical connection - 1 -.
Faulty HID headlamp bulb disposal --> HID headlamp bulb, disposal
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert new HID headlamp bulb in housing.
Note. Heed installation position: lug at top of bulb holder must engage in recess of HID headlamp bulb. Secure HID headlamp bulb with retaining clip. Secure housing cover with retaining clip. Reconnect battery. Required steps Reconnecting .
Note. HID headlamp bulbs contain mercury. Faulty HID headlamp bulbs (not covered by new vehicle warranty) may need to be disposed of as hazardous waste. Always heed state/local regulations concerning disposal of hazardous waste.
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Left headlamp
- Remove left engine cover - 1 -.
- Disconnect electrical connectors - 1 - and - 2 - from retainer.
- Unclip retainer for connectors and pull off upwards - arrow -.
Additional preparation
Right headlamp - vehicles with 1.8L 4-cylinder Turbo engine
- Remove air cleaner housing.
Right headlamp - vehicles with 3.0L 6-cylinder engine
- Remove air cleaner housing.
Right headlamp - vehicles with 4.2L 8-cylinder petrol engine
- Remove air cleaner housing.
Both sides, continued
- Release retaining clip - arrow - and detach housing cover for high beam from headlamp housing.
Scheme 216
- Disconnect electrical connection - 3 - at high beam headlamp bulb.
- Release retaining clip - 2 - and remove bulb - 1 - from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Secure bulb with retaining clip.
- Secure housing cover with retaining clip.
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Turn bulb holder - arrow - counter-clockwise and pull it from housing.
- Pull bulb out of bulb holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing bulb holder, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Headlamp Beam Adjustment Motor V48 / V49, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Left headlamp
- Remove left engine cover - 1 -.
- Disconnect electrical connections - 1 - and - 2 - from retainer.
- Unclip retainer for connectors and pull off upwards - arrow -.
Additional preparation
Right headlamp - vehicles with 1.8L 4-cylinder Turbo engine
- Remove air cleaner housing.
Right headlamp - vehicles with 3.0L 6-cylinder engine
- Remove air cleaner housing.
Right headlamp - vehicles with 4.2L 8-cylinder engine
- Remove air cleaner housing.
Both sides, continued
- Release retaining clip - arrow - and detach housing cover for high beam from headlamp housing.
Scheme 217
- Release headlamp range control motor: at right-side headlamp by turning counter-clockwise - arrow - ; at left-side headlamp by turning clockwise.
- Press ball head of actuator shaft downwards out of its mounting by tilting control motor.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Start by inserting ball head of actuator shaft in mounting on reflector from below; to do so, pull reflector to rear.
- Secure housing cover with retaining clip.
- Following installation, check and adjust headlamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Note. Headlamps must always be adjusted if the control motors are removed and installed or replaced.
High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344 - through approx. 09.01, removing and installing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Release retaining clip - arrow - and detach housing cover for low beam from headlamp housing.
- Remove connector - 1 - at HID headlamp bulb by turning counter-clockwise.
Note. Leave retaining clip - arrows - for HID headlamp bulb in position.
Scheme 218
- Remove screws - arrows -.
- Remove control module from headlamp housing.
- Connector at HID headlamp bulb can then be passed through headlamp housing.
Installing
Install in reverse order of removal, noting the following
- Secure housing cover with retaining clip.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344 - from approx. 09.01, removing and installing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Release retaining clip - arrow - and detach housing cover for low beam from headlamp housing.
- Release retaining clip - 2 - and remove HID headlamp bulb - 3 - from housing.
- Disconnect electrical connection - 1 -.
- Remove screws - arrows -.
- Remove control module from headlamp housing.
- Disconnect electrical connections.
- Remove adapter lead for HID headlamp bulb.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert HID headlamp bulb in housing.
Note. Heed installation position: lug at top of bulb holder must engage in recess of HID headlamp bulb. Secure HID headlamp bulb with retaining clip. Secure housing cover with retaining clip. Install headlamp Installing .
Note. If headlight securing lugs break due to application of excessive force, it may still be possible to service headlight in a cost effective manner (though headlight housing must not be damaged). Different repair sets are available for left and right headlight.
Procedure
- Remove headlamp with broken lug --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove remains of broken lug - 3 - and - 4 - at headlamp housing.
- Position retaining tab - 2 - from repair kit at edge of headlamp housing and secure from rear with the two screws - 1 -.
Tightening torque
| Component | Nm |
|---|---|
| Headlamp to lock carrier | 6 |
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the standard or optional headlamp or lighting system. Always read the owners manual and review applicable system functions.
Note. Additional information
Owners Manual
Self Study Program - Course Number 991103 "2002 Audi A4 Technical Features"
Wiring Diagrams Component Locations
| CAUTION | Before beginning repairs on electrical system Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Headlamp system functions are controlled by the Vehicle Electrical System Control Module J519 which has On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot headlamp system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".
Headlamps with High Intensity Gas Discharge (HID) "Bi-Xenon" Lamps, assembly
Note. After performing any repairs or service that could affect headlight aim, check/adjust aim.
Scheme 219
1 - Trim cover
2 - Headlamp housing
- Removing and installing --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
3 - Turn signal/parking lamp bulb
- 12 V, 28/7 W
- Orange
- Replacing --> «Turn signal/parking lamp bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
4 - Bulb holder
- For turn signal
5 - Headlamp beam adjustment motor
- Left Headlamp Beam Adjustment Motor V48
- Right Headlamp Beam Adjustment Motor V49
- Removing and installing --> «Headlamp Beam Adjustment Motor V48 / V49, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
6 - High intensity gas discharge (HID) low beam headlamp bulb
- 35 W, D1S
- Replacing --> «HID low beam headlamp bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__hid-low-beam-headlamp-bulb-replacing)
7 - Screw - 1.5 Nm
8 - Adapter lead
- Removing and installing --> «Adapter cable for HID headlamp bulb control module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__adapter-cable-for-hid-headlamp-bulb)
9 - High intensity gas discharge (HID) lamp control module
- Left High-intensity Gas Discharge (HID) Lamp Control Module J343
- Right High-intensity Gas Discharge (HID) Lamp Control Module J344
- Removing and installing --> «High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__high-intensity-gas-discharge-hid-lamp)
10 - Screw - 1.5 Nm
11 - Housing cover
12 - Cover cap with adjuster wheel
13 - Screw - 1.5 Nm
14 - Adjuster rod
15 - Left High Beam Headlamp M30 , Right High Beam Headlamp M32 - bulb
- H10 - 12 V, 42 W
- Replacing --> «High Beam Headlamp bulb M30 / M32, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__high-beam-headlamp-bulb-m30)
16 - Vent element
- 1x
17 - Screw - 6 Nm
18 - Stop bolt
- For aligning headlamp housing with body contour
- Must make contact with lock carrier
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Left headlamp
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Remove left engine cover - 1 -.
Right headlamp
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Both sides, continued
- Use adhesive tape to mask area beneath headlamp to prevent damage to paintwork.
- Remove screws - 1 - and - 5 -.
- Loosen screws - 2 - and - 4 - (do not remove).
- Where applicable, remove cable tie.
- Disconnect electrical connection - 3 -.
- Remove headlamp from body towards front.
Install in reverse order of removal, noting the following
Scheme 220
- Check whether vent element has been inserted on underside of headlamp - detail -.
- Slide headlamp horizontally onto lower headlamp mounting as far as it will go.
- Position stop screw - 1 - so that it makes contact with lock carrier.
- Use stop screw to align headlamp with body contours (gap widths).
Note. Pay attention to area around fender opening when aligning headlamp. Tighten screws - 2... 5 -. Reconnect battery. Required steps Reconnecting . Following installation, check and adjust headlamps if necessary --> 00 - TECHNICAL DATA .
Tightening torque
| Component | Nm |
|---|---|
| Headlamp to lock carrier | 6 |
Headlamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
HID low beam headlamp bulb, replacing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Scheme 221
- Remove screws - 1 - and - 2 -.
- Release retaining clip - 3 - in direction of - arrow - and detach housing cover from headlamp housing.
Scheme 222
- Disconnect electrical connection - 3 -.
- Release retaining clip - 1 - and remove HID headlamp bulb - 2 - from housing.
Faulty HID headlamp bulb disposal --> HID headlamp bulb, disposal
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert new HID headlamp bulb in housing.
Note. Heed installation position: lug at top of bulb holder must engage in recess of HID headlamp bulb. Secure HID headlamp bulb with retaining clip. Secure housing cover with screws and retaining clip. Install headlamp Installing . Reconnect battery. Required steps Reconnecting .
Note. HID headlamp bulbs contain mercury. Faulty HID headlamp bulbs (not covered by new vehicle warranty) may need to be disposed of as hazardous waste. Always heed state/local regulations concerning disposal of hazardous waste.
High Beam Headlamp bulb M30 / M32, replacing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove screws - 1 - and - 2 -.
- Release retaining clip - 3 - in direction of - arrow - and detach housing cover from headlamp housing.
Scheme 223
- Turn bulb - 1 - clockwise - arrow - and remove from housing.
- Disconnect electrical connection - 2 -.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Secure bulb by turning in counter-clockwise direction.
- Secure housing cover with screws and retaining clip.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
High/Low Beam Switch-Over Solenoid N347 / N348, removing and installing
Left High/Low Beam Switch-Over Solenoid N347 and Right High/Low Beam Switch-Over Solenoid N348 are integrated with the headlamp housing and cannot be replaced separately in the event of malfunction.
- Replace headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Turn bulb holder - arrow - counter-clockwise and pull it from housing.
- Pull bulb out of bulb holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing bulb holder, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove screws - 1 - and - 2 -.
- Release retaining clip - 3 - in direction of - arrow - and detach housing cover from headlamp housing.
Scheme 224
- Remove screw - 2 -.
- Lift off cover cap - 1 - with adjuster wheel.
Scheme 225
- Remove adjuster rod - 3 - upwards out of headlamp housing.
- Disconnect electrical connection - 4 -.
- Turn control motor - 5 - for left-side headlamp in a clockwise direction, for right-side headlamp in counter-clockwise direction - arrow -.
- Swivel ball head - 2 - of actuator shaft downwards out of mounting - 1 - on reflector.
- Remove headlamp range control motor from headlamp housing.
Installing
Install in reverse order of removal, noting the following
- Push ball head of actuator shaft into mounting on reflector and turn control motor to limit stop in installation position.
- Insert adjuster rod into headlamp housing.
- Secure housing cover with screws and retaining clip.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
- Following installation, check and adjust headlamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Note. Headlamps must always be adjusted if the control motors are removed and installed or replaced.
Tightening torque
| Component | Nm |
|---|---|
| Cover cap with adjuster wheel to headlamp housing | 1.5 |
High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344, removing and installing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Scheme 226
- Remove screws - arrows -.
- Remove control module - 1 - from housing cover for headlamp housing.
Scheme 227
- Disconnect electrical connections - 1 - and - 2 -.
Installing
Install in reverse order of removal, noting the following
- Check gasket between control module for HID headlamp bulb and headlamp housing.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Control module to headlamp - screw | 1 |
Adapter cable for HID headlamp bulb control module, removing and installing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove screws - 1 - and - 2 -.
- Release retaining clip - 3 - in direction of - arrow - and detach housing cover from headlamp housing.
- Remove screws - arrows -.
- Remove control module - 1 - from housing cover for headlamp housing.
- Disconnect electrical connection - 1 -.
Note. Disregard - 2 -.
Scheme 228
- Disconnect electrical connection - 4 - at HID headlamp bulb.
- Remove wiring - 1 - and adapter cable - 3 - from retainer - 2 -.
- Guide adapter cable out of housing cover - 5 -.
Installing
Install in reverse order of removal, noting the following
- Insert adapter cable and electrical wiring in retainer.
- Check gasket between control module for gas discharge lamp and headlamp housing.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Reconnect battery. Required steps «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Control module to headlamp - screw | 1 |
Note. If headlight securing lugs break due to application of excessive force, it may still be possible to service headlight in a cost effective manner (though headlight housing must not be damaged). Different repair sets are available for left and right headlight.
Procedure
- Remove headlamp with broken lug --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove remains of broken-off lug - 3 - and - 4 - at headlamp housing.
- Position retaining tab - 2 - from repair kit at edge of headlamp housing and secure from rear with the two screws - 1 -.
Tightening torque
| Component | Nm |
|---|---|
| Headlamp to lock carrier | 6 |
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the standard or optional headlamp or lighting system. Always read the owners manual and review applicable headlamp system functions.
Note. Additional information
Owners Manual
Self Study Program - Course Number 991503 "The 2005 Audi A4"
Wiring Diagrams Component Locations
| CAUTION | Before beginning repairs on electrical system Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Headlamp system functions are controlled by the Vehicle Electrical System Control Module J519 which has On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot headlamp system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".
Note. After performing any repairs or service that could affect headlight aim, check/adjust aim. Headlamp without adaptive light function (cornering lights) is illustrated.
Scheme 229
1 - Screw - 1.5 Nm
2 - High intensity gas discharge (HID) lamp control module
- Left High-intensity Gas Discharge (HID) Lamp Control Module J343
- Right High-intensity Gas Discharge (HID) Lamp Control Module J344
- Removing and installing --> «High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
3 - Headlamp housing
4 - Screw - 4.5 Nm
5 - Housing cover
- For parking/daytime running lamps
6 - Daytime running lamp (DRL) bulb
- 12 V, 21 W
- Replacing --> «Daytime Running Lamp (DRL) bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__daytime-running-lamp-drl-bulb-replacing)
7 - Bulb holder
- For daytime running lamp (DRL) bulb
8 - Bulb holder
- For parking lamps
9 - Left Parking Lamp M1 , Right Parking Lamp M3 - bulb
- 12 V, 5 W
- Replacing --> «Parking Lamp M1 / M3 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
10 - Screw - 4.5 Nm
11 - Housing cover
- For low beam headlamps
12 - Screw - 1.5 Nm
13 - High intensity gas discharge (HID) lamp
- 35 W, D1S
- Replacing --> «HID headlamp bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__hid-headlamp-bulb-replacing)
14 - Bulb holder
- For turn signal bulb
15 - Left Front Turn Signal Lamp M5 , Right Front Turn Signal Lamp M7 - bulb
- 12 V, 21 W
- Orange
- Replacing --> «Front Turn Signal Lamp M5 / M7 - bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
16 - Trim cover
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Disconnect battery. Audi A4 S4 --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) . Audi RS4 --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Remove screw - 3 -.
- Loosen screws - 1 - and - 2 - (do not remove).
- Remove headlamp from body towards front.
- Disconnect electrical connection.
Install in reverse order of removal, noting the following
- Check adjusting nut - 1 - of adjuster for freedom of movement - arrows -.
- Screw adjusting nut as far as it will go, but do not tighten.
- Insert headlamp and screw in screws - 1... 3 - two complete turns.
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Align headlamp with body contours and front bumper cover (note gap widths).
- Tighten screws in sequence - 2 - , - 1 - and - 3 -.
Note. When the screws are tightened the adjusting nut of the adjuster element automatically rotates against the mounting point of the headlamp housing and fixes it in place. Check gaps; if necessary, repeat procedure for installing headlamp. Reconnect battery. Required steps Audi A4 S4 Reconnecting . Required steps Audi RS4 Connecting Following installation, check and adjust headlamps if necessary --> 00 - TECHNICAL DATA .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Headlamp to lock carrier - screw | 4.5 |
Headlamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
The following equipment and engine-dependent procedures are required in order to replace certain headlamp bulbs.
Upper washer fluid reservoir and power steering fluid reservoir, removing and installing
Procedure
Scheme 230
- Remove nut - 1 - and bolts - 4 - and - 5 -.
- Remove breather hose - 2 - from top section of washer fluid reservoir - 3 -.
- Remove top section of washer fluid reservoir and move power steering reservoir - 6 - to side with hydraulic hoses still attached.
Install in reverse order of removal, noting the following
Note. Clean remnants of locking fluid from bolts using wire brush. Then apply locking fluid and fit bolts. Locking fluid. Clean remnants of locking fluid from inside thread using a thread tap. Otherwise, bolts may break should they need to be removed again later.
Tightening torque
| Component | Nm |
|---|---|
| Top section of reservoir to body | 5.5 |
| Top section of reservoir and power steering reservoir to body | 18 1) 2) |
| 1) Replace bolt. 2) Insert with locking compound; locking compound. | |
Procedure
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Disconnect electrical connections
- at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- at Mass Air Flow (MAF) Sensor G70
- at Wastegate Bypass Regulator Valve N75
- Disconnect hoses - 4... 7 -.
- Disconnect hose to secondary air pump.
- Set aside wiring.
- Release fastener - 8 -.
- Remove air cleaner housing.
Note. The vacuum line leading to combination valve for secondary air is clipped onto the underside of the air intake hose.
Install in reverse order of removal.
Preparation - vehicles with 2.0L 4-cylinder Turbo FSI engine
Procedure
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
Scheme 231
- Remove air intake hose - 1 - between turbocharger and air cleaner housing.
- Disconnect electrical connection - 2 - at Mass Air Flow (MAF) Sensor G70.
- Pull off clip - 3 - and remove air cleaner housing together with Mass Air Flow (MAF) Sensor G70.
Install in reverse order of removal.
Procedure
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Pull off lines and disconnect electrical connections
- at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- vacuum hose at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- at Mass Air Flow (MAF) Sensor G70
- Pull off hose connections, set aside hoses and remove air cleaner housing - arrows
Note. Disregard - 4 - and - 5 -.
Install in reverse order of removal.
Preparation - vehicles with 3.2L 6-cylinder FSI engine
Procedure
- Remove screws - arrows -.
- Remove air duct - 1 - and - 2 -.
Scheme 232
- Release fastener - arrow -.
- Remove air cleaner housing.
Install in reverse order of removal.
Preparation - vehicles with 4.2L 8-cylinder engine (Audi S4)
Procedure
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Disconnect electrical connection - 2 - at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80.
- Disconnect electrical connection - 3 - at Mass Air Low (MAF) Sensor G70.
- Disconnect hose - 1 - to secondary air pump.
- Remove air intake hose - 4 - at Mass Air Low (MAF) Sensor G70.
- Set aside wiring harness at air cleaner housing.
- Remove clip - arrow - and remove air cleaner housing together with Mass Air Low (MAF) Sensor G70.
Install in reverse order of removal.
Preparation - vehicles with 4.2L 8-cylinder FSI engine (Audi RS4)
Procedure
- Remove rear engine cover in direction of - arrows -.
- Remove screws - arrows -.
- Remove air duct - 1 - and - 2 -.
Scheme 233
- Disconnect electrical connection - 4 - for Mass Air Flow (MAF) Sensor G70.
- Remove hose - 5 - to Secondary Air Injection (AIR) pump.
- Remove vacuum hoses - 1 -.
- Remove air guide hose - 3 - at Mass Air Flow (MAF) Sensor.
- Free up wiring harness at air filter housing.
- Remove screws - arrows - and remove upper part of air filter housing.
- Disengage electrical wiring harness bracket at body.
- Remove clip - arrow - and remove air filter housing with Mass Air Flow (MAF) sensor.
Note. Disregard - 6 -.
Install in reverse order of removal.
HID headlamp bulb, replacing
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. The physical and mechanical properties of HID bulbs are very sensitive. Internal pressure of HID glass bulb may exceed 100 bar (in operation). Bulb temperature may exceed 700 degrees Celsius. Danger of explosion and burning. The control modules for HID lamps must never be operated (headlamps turned on) without an HID lamp. HID bulbs must only be operated (headlamps turned on) when installed in the headlamp housing. Always wear safety glasses and gloves when removing and installing HID bulb. Never look directly at an operating HID bulb. The UV emissions of an HID bulb are approximately 2.5 times that of a comparable halogen bulb.. |
Removing
- Disconnect battery. Audi A4 S4 --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) . Audi RS4 --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
Left headlamp
- Remove top section of washer fluid reservoir and power steering reservoir.
Right headlamp - vehicles with 1.8L 4-cylinder Turbo engine
- Preparation.
Right headlamp - vehicles with 2.0L 4-cylinder Turbo FSI engine
- Preparation.
Right headlamp - vehicles with 3.0L 6-cylinder engine
- Preparation.
Right headlamp - vehicles with 3.2L 6-cylinder FSI engine
- Preparation.
Right headlamp - vehicles with 4.2L 8-cylinder engine (Audi S4)
- Preparation.
Right headlamp - vehicles with 4.2L 8-cylinder FSI engine (Audi RS4)
- Preparation.
Both sides, continued
Scheme 234
- Remove screws - 1 - and - 2 -.
- Remove cover for low beam from headlamp housing - arrow -.
Scheme 235
- Remove electrical wire from retainers - arrow -.
- Disconnect electrical connection - 4 -.
- Release retaining clips - 1 - and - 3 - and remove HID headlamp bulb - 2 - from housing.
Faulty HID headlamp bulb disposal --> HID headlamp bulb, disposal
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert new HID headlamp bulb in housing.
Note. Note installation position: the electrical connection must always point downwards. Secure HID headlamp bulb with retaining clips. Reconnect battery. Required steps Audi A4 S4 Reconnecting . Required steps Audi RS4
Tightening torque
| Component | Nm |
|---|---|
| Housing cover for low beam to headlamp housing | 1.5 |
Note. HID headlamp bulbs contain mercury. Faulty HID headlamp bulbs (not covered by new vehicle warranty) may need to be disposed of as hazardous waste. Always heed state/local regulations concerning disposal of hazardous waste.
Daytime Running Lamp (DRL) bulb, replacing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Right headlamp
Scheme 236
- Remove screws - arrows -.
- Remove air ducts - 1 - and - 2 -.
Scheme 237
Both sides, continued
- Release retaining tab - arrow - and detach housing cover for side lights from headlamp housing.
Scheme 238
- Turn bulb holder - 1 - counter-clockwise - arrow - and remove from headlamp housing.
- Screw bulb out of bulb holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Secure bulb holder by turning clockwise.
- Close housing cover.
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Right headlamp
- Remove screws - arrows -.
- Remove air ducts - 1 - and - 2 -.
Both sides, continued
- Release retaining tab - arrow - and detach housing cover for side lights from headlamp housing.
Scheme 239
- Release the two retainer tabs and pull bulb holder - 1 - out of housing - arrow -.
- Pull bulb for side lights out of bulb holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert new bulb in bulb holder.
- Close housing cover.
High/Low Beam Switch-Over Solenoid N347 / N348 and Dynamic Cornering Light Motor V318 / V319, removing and installing
Left High/Low Beam Switch-Over Solenoid N347 , Right High/Low Beam Switch-Over Solenoid N348 , Left Dynamic Cornering Light Motor V318 and Right Dynamic Cornering Light Motor V319 are integrated with the headlamp housing and cannot be replaced separately in the event of a fault.
- Replace headlamp --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Left headlamp
- Remove washer fluid reservoir --> «Washer fluid reservoir - Audi A4 S4, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__washer-fluid-reservoir-audi-a4) .
Right headlamp
- Lift vehicle.
- Remove right front wheel.
- Remove screws - arrows -.
- Remove forward portion of wheel housing liner.
All models
- Turn bulb holder - 3 - counter-clockwise - arrow - and pull from housing.
- Screw bulb out of holder.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Fit new bulb in housing.
- Markings - 1 - and - 2 - must be opposite each other when inserting bulb holder into housing.
Left headlamp
- Install washer fluid reservoir --> «Washer fluid reservoir - Audi A4 S4, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__washer-fluid-reservoir-audi-a4) .
Right headlamp
- Install wheel housing liner --> «66 EXTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
| CAUTION | HIGH VOLTAGE! Always disconnect negative ( - ) battery terminal prior to working on parts of HID headlamp components marked with yellow "HIGH VOLTAGE" warning symbols. |
Removing
- Remove headlamp.
Scheme 240
- Remove screws - arrows -.
- Remove control module - 1 - from headlamp housing.
Scheme 241
- Disconnect adapter cable - 2 - for HID headlamp bulb at control module - 1 -.
Installing
Install in reverse order of removal, noting the following
- Check gasket between control module for HID headlamp bulb and headlamp housing.
- Install headlamp «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Note. If headlight securing lugs break due to application of excessive force, it may still be possible to service headlight in a cost effective manner (though headlight housing must not be damaged). Different repair sets are available for left and right headlight.
Procedure
- Remove headlamp with broken lugs --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
- Remove remains of broken lugs from headlamp housing.
- Fit lugs - 2 - and - 3 - from repair kit on headlamp housing and secure with screws - 1 - and - 4 -.
Tightening torque
| Component | Nm |
|---|---|
| Headlamp to lock carrier | 6 |
Fog lamp housing, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Audi A4
Scheme 242
- Release retaining hooks - 1... 4 - using a screwdriver - arrow - and pull off air intake grille in bottom section of bumper.
Audi S4
Scheme 243
- Turn screw - 1 - 90 ° (1/4 turn).
- Remove air intake grille from fog lamp housing in direction of - arrow A -.
- Then push air intake grille in direction of - arrow B - and simultaneously disengage retaining clip - 2 -.
- Remove air intake grille.
All models
Scheme 244
- Remove screws - arrows -.
- Disengage fog lamp housing and remove.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Engage fog lamp housing.
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Fog lamp housing to bumper - screw | 5 |
Fog lamp bulb, replacing
Removing
- Remove fog lamp assembly --> «Fog lamp housing, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__fog-lamp-housing-removing-and-installing) .
Scheme 245
- Disconnect electrical connection - 1 - at bulb.
- Turn bulb counter-clockwise - arrow - and remove from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb and secure by turning in clockwise direction.
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Fog lamps, adjusting
Fog lamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
Fog lamp housing - Audi A4, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Vehicles without charge air cooler
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Vehicles with charge air cooler
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
All models
Scheme 246
- Remove screws - arrows -.
- Disconnect electrical connection - 2 -.
- Remove fog lamp housing - 1 -.
Installing
Install in reverse order of removal, noting the following
Vehicles with charge air cooler
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
All models
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Fog lamp housing to bumper cover - screw | 6 |
Fog lamp housing - Audi A4 with "S-line" equipment Audi S4, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 247
- Remove air intake grille from fog lamp housing in direction of - arrows -.
Scheme 248
- Remove screws - arrows -.
- Disconnect electrical connection.
- Remove housing from opening.
Installing
Install in reverse order of removal, noting the following
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Fog lamp housing to bumper cover - screw | 6 |
Fog lamp housing - Audi RS4, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Removing
Scheme 249
- Pull off air inlet grille in lower section of bumper cover - arrows -.
- Remove screws - arrows -.
- Disengage housing and remove from opening.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- First engage fog lamp housing on inner side of bumper cover.
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Fog lamp housing to bumper cover - screw | 6 |
Fog lamp bulb - Audi A4, replacing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Vehicles with charge air cooler
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Vehicles without charge air cooler
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
All models
Scheme 250
- Disconnect electrical connection - 2 -.
- Turn bulb - 1 - counter-clockwise - arrow - and remove from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb and secure by turning in clockwise direction.
Vehicles with charge air cooler
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
All models
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Fog lamp bulb - Audi A4 with "S-line" equipment Audi S4, replacing
Removing
- Remove fog lamp housing --> «Fog lamp housing - Audi A4 with "S-line" equipment Audi S4, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__fog-lamp-housing-audi-a4) .
- Disconnect electrical connection - 1 -.
- Rotate bulb counter-clockwise - arrow - and remove from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb and secure by turning in clockwise direction.
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Fog lamp bulb - Audi RS4, replacing
Removing
- Remove housing --> «Fog lamp housing - Audi RS4, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__fog-lamp-housing-audi-rs4)
- Disconnect electrical connection - 1 - at bulb.
- Rotate bulb holder counterclockwise - arrow - and remove from housing.
Installing
Install in reverse order of removal, noting the following
| CAUTION | Do not touch glass portion of bulb with bare hands. Even the smallest amount of moisture and/or contaminants from fingers that evaporates on the bulb during operation can cause the glass to cloud over. When installing housing cover, ensure proper seating. Water intrusion will damage headlamp. |
- Insert bulb and secure by turning in clockwise direction.
- Check and adjust fog lamps if necessary --> «00 - TECHNICAL DATA»(/audi/a4/b7-2004-2009/remont/exterior-body-panels/#body-collision-repair) .
Fog lamps are adjusted using VAS 5107 Optical Headlamp Aimer and detailed aiming procedure and specifications --> 00 - TECHNICAL DATA .
Side mounted turn signals, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 251
- Press turn signal housing towards front of vehicle against retainer tab - arrow - and remove carefully from fender opening.
- Disconnect electrical connection.
Installing
Install in reverse order of removal.
Scheme 252
1 - Taillamp bulb
- 12 V, 5 W
2 - Brake/taillamp bulb
- 12 V, 21/5 W
3 - Clip nut
- 2x
4 - Electrical connector
5 - Retainer
- Replace if seal is damaged
6 - Nut - 12 Nm
7 - O-ring
- Replace if damaged
8 - Bolt - 6 Nm
9 - Turn signal lamp bulb
- 12 V, 21 W
- Orange
10 - Backup lamp bulb
- 12 V, 21 W
11 - Bulb holder
12 - Rear fog lamp bulb (where applicable)
- 12 V, 21 W
13 - Housing
Rear light/bulb carrier - Sedan, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 253
- Fold pre-punched area - 1 - of luggage compartment lining forwards.
- Remove screw - 3 -.
- Swivel rear light outwards, and at the same time disengage retaining pins from body.
- Disconnect electrical connection at bulb carrier.
Scheme 254
- Press retaining clips together - arrows - and take bulb carrier out of rear light.
- Turn bulbs to remove them from their holders.
Installing
Install in reverse order of removal, noting the following
Note. Ensure seal between body and rear light housing seals completely. Fit rear light in position on body and press retaining pins into holes.
- Tighten screw - 3 -.
Note. After loosening nut - 2 - , rear light can be aligned with body contours (uniform gap widths).
Tightening torques
| Component - fastener | Nm |
|---|---|
| Rear light to body - nut | 12 |
| Rear light to body - screw | 6 |
Scheme 255
1 - Bulb holder
2 - Clip nut
- 2x
3 - Electrical connector
4 - Retainer
- Replace if seal is damaged
5 - Nut - 12 Nm
6 - O-ring
- Replace if damaged
7 - Bolt - 6 Nm
8 - Rear fog lamp bulb (where applicable)
- 12 V, 21 W
9 - Turn signal lamp bulb
- 12 V, 21 W
- Orange
10 - Backup lamp bulb
- 12 V, 21 W
11 - Brake/taillamp bulb
- 12 V, 21/5 W
12 - Housing
Rear light/bulb carrier - Avant, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 256
- Remove plug - arrow - from luggage compartment lining.
Scheme 257
- Remove screw - 1 -.
- Swivel rear light outwards, and at the same time disengage retaining pins from body.
- Disconnect electrical connection at bulb carrier.
Scheme 258
- Press apart retaining clips - arrows - and take bulb carrier out of rear light.
- Turn bulbs to remove them from their holders.
Installing
Install in reverse order of removal, noting the following
Note. Ensure seal between body and rear light housing seals completely. Fit rear light in position on body and press retaining pins into holes.
- Tighten screw - 1 -.
Note. After loosening nut - 2 - , rear light can be aligned with body contours (uniform gap widths).
Tightening torques
| Component - fastener | Nm |
|---|---|
| Rear light to body - nut | 12 |
| Rear light to body - screw | 6 |
Scheme 259
1 - Turn signal lamp bulb
- 12 V, 21 W
2 - Brake/taillamp bulb
- 12 V, 21 W
3 - Clip nut
- 2x
4 - Electrical connector
5 - Bolt - 3.5 Nm
- With hex socket (17 mm)
6 - Bulb holder
- Removing and installing --> «Rear light/bulb carrier in rear fender - Sedan, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-lightbulb-carrier-in-rear-fender)
7 - Taillamp bulb
- 12 V, 21 W
8 - Backup lamp bulb
- 12 V, 21 W
9 - Housing
- Removing and installing --> «Rear light/bulb carrier in rear fender - Sedan, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-lightbulb-carrier-in-rear-fender)
Rear light/bulb carrier in rear fender - Sedan, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 260
- Fold pre-punched area - 2 - of luggage compartment lining forwards.
- Remove fastener - 1 - (17 mm hex socket ).
- Swivel rear light outwards - arrow - , and at the same time disengage retaining pins from body.
- Disconnect electrical connection at bulb carrier.
Scheme 261
- Press together retaining tabs - arrows - and remove bulb carrier - 1 - from rear light.
- Turn bulbs to remove them from their holders.
Installing
Install in reverse order of removal, noting the following
Note. Ensure seal between body and rear light housing seals completely. Fit rear light in position on body and press retaining pins into holes.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Rear light to body - screw | 3.5 |
Scheme 262
1 - Housing
- Removing and installing --> «Rear light/bulb carrier in rear lid - Sedan, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-lightbulb-carrier-in-rear-lid)
2 - Taillamp/rear fog lamp bulb
- 12 V, 21 W
3 - Bulb holder
- For taillamp/rear fog lamp bulb
- Removing and installing --> «Taillamp/rear fog lamp bulb, replacing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__taillamprear-fog-lamp-bulb-replacing)
4 - Electrical connector
5 - Nut - 3.5 Nm
6 - Retainer
- For securing housing to rear lid
Rear light/bulb carrier in rear lid - Sedan, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 263
- Unclip plug - 1 - from luggage compartment trim - arrow - using a small screwdriver.
Scheme 264
- Remove nut - 3 - and remove retainer - 2 -.
- Press inner rear light - 1 - towards - arrow - (working from inside of rear lid) until light can be removed from the outside.
- Disconnect electrical connection at bulb carrier.
Installing
Install in reverse order of removal, noting the following
Note. Ensure seal between body and rear light housing seals completely. Position inner rear light at outer edge of rear lid. Push on retainer at stud for inner rear light and tighten nut.
Note. As the nut is tightened the retainer becomes wedged at the inner rear light and the rear lid. Clip plug into luggage compartment lining.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Inner rear light to body - nut | 3.5 |
Taillamp/rear fog lamp bulb, replacing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Unclip plug - 1 - from luggage compartment trim - arrow - using a small screwdriver.
Scheme 265
- Release retaining tab - arrow - and remove bulb holder - 1 -.
- Twist and remove bulb from bulb holder.
Installing
Install in reverse order of removal.
Scheme 266
1 - Turn signal lamp bulb
- 12 V, 21 W
2 - Electrical connector
3 - Clip nut
- 2x
4 - Bolt - 3.5 Nm
- With hex socket (17 mm)
5 - Bulb holder
- Removing and installing --> «Rear light/bulb carrier in rear fender - Avant, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-lightbulb-carrier-in-rear-fender)
6 - Brake/taillamp bulb
- 12 V, 21 W
7 - Backup lamp bulb
- 12 V, 21 W
8 - Housing
- Removing and installing --> «Rear light/bulb carrier in rear fender - Avant, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-lightbulb-carrier-in-rear-fender)
Rear light/bulb carrier in rear fender - Avant, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 267
- Unclip plug - 1 - from luggage compartment trim - arrow - using a screwdriver.
Scheme 268
- Remove screw - 2 -.
- Swivel rear light - 1 - outwards - arrow - , and at the same time disengage retaining pins from body.
- Disconnect electrical connection at bulb carrier.
Scheme 269
- Press apart retaining tabs - arrows - and remove bulb carrier - 1 - from rear light.
- Turn bulbs to remove them from their holders.
Installing
Install in reverse order of removal, noting the following
Note. Ensure seal between body and rear light housing seals completely. Fit rear light in position on body and press retaining pins into holes. Tighten screw.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Rear light to body - nut | 3.5 |
Scheme 270
1 - Housing
- Removing and installing --> «Rear light/bulb carrier in rear lid - Avant, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-lightbulb-carrier-in-rear-lid)
2 - Taillamp bulb
- 12 V, 21 W
3 - Electrical connector
4 - Nut - 3.5 Nm
5 - Retainer
- For securing housing to rear lid
6 - Bulb holder
- For tail light/rear Fog lamp bulb
- Removing and installing --> «Taillamp/rear fog lamp bulb, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__taillamprear-fog-lamp-bulb-removing-and)
7 - Taillamp/rear fog lamp bulb
- 12 V, 21 W
8 - Nut - 3.5 Nm
9 - Retainer bracket
- For securing bulb holder and housing to rear lid
Rear light/bulb carrier in rear lid - Avant, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 271
- Unclip plug - 1 - from luggage compartment trim - arrow - using a small screwdriver.
Scheme 272
- Remove nut - 2 - and remove retainer bracket and bulb holder - 3 -.
- Remove nut - 4 - and remove inner rear light - 1 - from outside in direction of - arrow -.
- Pull the retainer - 5 - out of body opening.
Tightening torques
| Component - fastener | Nm |
|---|---|
| Retainer to housing - nut | 3.5 |
| Retainer bracket to housing - nut | 3.5 |
Taillamp/rear fog lamp bulb, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Unclip plug - 1 - from luggage compartment trim - arrow - using a small screwdriver.
Scheme 273
- Remove nut - 1 - and detach retainer bracket.
- Remove bulb holder - 2 - from housing (press apart retaining tabs - arrows - ).
- Screw bulb out of bulb holder.
Installing
Install in reverse order of removal, noting the following
- Insert new bulb in bulb holder.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Retainer bracket to housing - nut | 3.5 |
High-mount brake lamp - Sedan, removing and installing
Removing
Note. High-mount brake lamp is accessible from luggage compartment via panel opening below rear shelf. Complete high-mount brake lamp must be replaced if LEDs are inoperative. Do not press brake pedal.
Scheme 274
- Disconnect electrical connection - 1 - at high-mount brake lamp - 2 -.
- Pry off retaining clips in direction of - arrows -.
- Pull high-mount brake lamp downwards out of opening.
Installing
Install in reverse order of removal.
High-mount brake lamp - Avant, removing and installing
Note. Complete high-mount brake lamp must be replaced if LEDs are inoperative.
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Do not press brake pedal.
Scheme 275
- Remove upper rear lid trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Insert screwdriver - 1 - into hole in rear lid through which wire is routed to high-mount brake lamp.
- Release retaining rail - 2 - of spring tabs towards right - arrow in detail view - by pressing screwdriver handle firmly to left - arrow -.
Scheme 276
- Starting on the right, use hook 3370 to pull high-mount brake lamp - 2 - out of rear lid opening - arrow -.
- Disconnect electrical connection - 1 -.
- Remove fastening elements for high-mount brake lamp (5x) out of rear lid.
Installing
Install in reverse order of removal, noting the following
Scheme 277
- Position spring clips on high-mount brake lamp housing such that lug - 2 - faces recess on spring clip - 3 -.
- Ensure spring clip catches - 4 - engage in guides - 5 - on housing.
- Position retaining rail - 1 - onto housing and lock in direction of - arrow -.
- The spring clips are locked in place by the retaining rail.
- Connect electrical connector and push high-mount brake lamp into rear lid opening until it engages audibly.
Note. High-mount brake lamp is accessible from luggage compartment via panel opening below rear shelf. Complete high-mount brake lamp must be replaced if LEDs are inoperative.
Removing
- Do not press brake pedal.
Scheme 278
- Disconnect electrical connection - 1 - at high-mount brake lamp - 2 -.
- Release retaining clips - 3 - in direction of - arrow -.
- Pull high-mount brake lamp downwards out of opening.
Installing
Install in reverse order of removal.
Note. Complete high-mount brake lamp must be replaced if LEDs are inoperative.
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Do not press brake pedal.
- Remove upper rear lid trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Insert screwdriver - 1 - into hole in rear lid through which wire is routed to high-mount brake lamp.
- Release retaining rail - 2 - of spring tabs towards right - arrow in detail view - by pressing screwdriver handle firmly to left - arrow -.
- Starting on the right, use hook 3370 to pull high-mount brake lamp - 2 - out of rear lid opening - arrow -.
- Disconnect electrical connection - 1 -.
- Remove fastening elements for high-mount brake lamp (4x) out of rear lid.
Installing
Install in reverse order of removal, noting the following
- Position spring clips on high-mount brake lamp housing such that lug - 2 - faces recess on spring clip - 3 -.
- Ensure spring clip catches - 4 - engage in the guides - 5 - on the housing.
- Position retaining rail - 1 - onto housing and lock in direction of - arrow -.
- The spring clips are locked in place by the retaining rail.
- Connect electrical connector and push high-mount brake lamp into rear lid opening until it engages audibly.
License plate lamp, removing and installing
Removing
- Turn light switch to position "0".
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 279
- Remove screw - arrow - in handle trim.
- Lever bulb holder out of handle trim.
- Remove bulb (12 V, 5 W) from bulb holder.
Installing
Install in reverse order of removal.
The steering column switches, spiral spring and Steering Angle Sensor G85 are integrated into a single assembly (module) along with the Steering Column Electronic Systems Control Module J527.
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the steering column electronics. Always read the owners manual and review applicable system functions.
Note. Additional information
Owners Manual
Self Study Program - Course Number 991103 "2002 Audi A4 Technical Features"
Self Study Program - Course Number 991503 "The 2005 Audi A4"
Wiring Diagrams Component Locations
The Steering Column Electronic Systems Control Module J527 is controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot steering column electronics malfunctions by performing OBD program with VAS 5051 Vehicle Diagnostic Testing and Information system or VAS 5052 Vehicle Testing and Service System.
Scheme 280
1 - Spiral spring
| CAUTION | Position of spiral spring must not be changed once removed. |
- Removing and installing --> «Spiral spring, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__spiral-spring-removing-and-installing)
2 - Steering Angle Sensor G85
- Removing and installing --> «Steering Angle Sensor G85 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-angle-sensor-g85-removing)
3 - Socket head bolt
4 - Cruise Control Switch E45
- Removing and installing --> «Cruise Control Switch E45 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__cruise-control-switch-e45-removing)
5 - Socket head bolt
6 - Turn Signal Switch E2
- Removing and installing --> «Turn Signal Switch E2 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__turn-signal-switch-e2-removing)
7 - Retaining clip
8 - Steering Column Electronic Systems Control Module J527
- Removing and installing --> «Steering Column Electronics Systems Control Module J527 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-electronics-systems-control-module)
- Multi-pin connector assignments --> «Steering Column Electronics Systems Control Module J527 , front multi-pin connector assignments»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-electronics-systems-control-module)
9 - Clamping bolt - 3 Nm
10 - Windshield Wiper/Washer Switch E22
- Removing and installing --> «Windshield Wiper/Washer Switch E22 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__windshield-wiperwasher-switch-e22-removing)
11 - Socket head bolt
Steering column switch module, removing and installing
Special tools, testers and auxiliary items required
Scheme 281
- Special screwdriver T8 T40056 or equivalent "Torx - 8"
Note. Should any steering column switches require replacement, follow applicable component "Replacement" procedure using VAS 5051/5051 in operating mode "Guided Fault Finding". Move steering wheel down and to rear as far as possible; make use of the full range of the steering column adjuster.
| CAUTION | Special safety precautions apply to vehicles equipped with airbags. Heed all WARNINGS pertaining to airbag servicing --> 69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS |
- Remove airbag and steering wheel --> «69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 282
Note. Due to manufacturing tolerances, it may not be possible to insert Special Screwdriver T8 T40056 all the way into access hole in switch module. In these cases, grind down shoulder of screwdriver in areas indicated - arrows -.
Scheme 283
- Use Special Screwdriver T8 T40056 to remove screws - 4 - and - 5 -.
- Remove hex socket head bolt - 6 -.
- Release trim cover - 1 - on upper steering column trim - 2 - using a small screwdriver - arrows A and B -.
- Separate upper trim - 2 - from lower trim - 3 - and remove upper trim.
- Remove release lever for steering column adjustment - 7 - and guide out lower trim.
Scheme 284
- Remove screw - 2 -.
| CAUTION | Before disconnecting electrical connections at module, discharge any static electricity by briefly grasping hold of door striker plate or similar, grounded article on vehicle. |
- Disconnect electrical connections - 1 - and - 3 -.
- Disconnect electrical connection - 4 -.
Scheme 285
- Disengage connector lock - 1 - in direction of - arrow - in order to release connector - 2 -.
- Carefully remove steering column switch module.
Install in reverse order of removal, noting the following
- Ensure all fasteners and electrical connectors are properly connected and locked into place.
- Insert upper steering column trim in hooks for bottom trim, press both sections together and tighten screws.
- Install steering wheel and drivers airbag --> «69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Steering column switch module - bolt | 3 |
| Trim for steering column switch - screw | 1 |
Spiral spring, removing and installing
Special tools, testers and auxiliary items required
- Special Screwdriver T8 T40056 or equivalent "Torx - 8"
Removing
| CAUTION | Ensure steering is in straight ahead and centered prior to removing spiral spring. Position of spiral spring must not be changed once removed. |
- Move steering wheel down and to rear as far as possible; make use of the full range of the steering column adjuster.
| CAUTION | Special safety precautions apply to vehicles equipped with airbags. Heed all WARNINGS pertaining to airbag servicing --> 69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS |
- Remove airbag and steering wheel --> «69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Note. Due to manufacturing tolerances, it may not be possible to insert Special Screwdriver T8 T40056 all the way into access hole in switch module. In these cases, grind down shoulder of screwdriver in areas indicated - arrows -.
- Use Special Screwdriver T8 T40056 to remove screws - 4 - and - 5 -.
- Remove hex socket head bolt - 6 -.
- Release trim cover - 1 - on upper steering column trim - 2 - using a small screwdriver - arrows A and B -.
- Separate upper trim - 2 - from lower trim - 3 - and remove upper trim.
- Remove release lever for steering column adjustment - 7 - and guide out lower trim.
- Disconnect upper electrical connection at spiral spring.
Scheme 286
- Carefully release clip fasteners - arrows - and remove spiral spring - 1 - from steering column switch module.
Note. Steering column switch module shown removed for illustration purposes.
Installing
Install in reverse order of removal, noting the following
- Ensure all fasteners and electrical connectors are properly connected and locked into place.
- Insert upper steering column trim into bottom trim, press both sections together and tighten screws.
- Install steering wheel and airbag --> «69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Steering column switch module - bolt | 3 |
| Trim for steering column switch - screw | 1 |
Steering Angle Sensor G85 , removing and installing
Note. Should the Steering Angle Sensor G85 require replacement, follow applicable component "Replacement" as well as "zero - calibrate" procedure using VAS 5051/5051 in operating mode "Guided Fault Finding".
Removing
- Remove spiral spring --> «Spiral spring, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__spiral-spring-removing-and-installing) .
Scheme 287
- Remove Steering Angle Sensor G85 - 1 - from Steering Column Electronic Systems Control Module J527 in direction of - arrow -.
Installing
Install in reverse order of removal, noting the following
- Perform "zero - calibrate" procedure using VAS 505/5052 in operating mode "Guided Fault Finding".
Steering Column Electronics Systems Control Module J527 , removing and installing
Removing
Note. Should the Steering Column Electronic Systems Control Module J527 require replacement, follow applicable component "Replacement" procedure using VAS 5051/5051 in operating mode "Guided Fault Finding". Remove steering column switch module --> Steering column switch module, removing and installing .
| CAUTION | Ensure steering is in straight ahead and centered prior to removing spiral spring. Position of spiral spring must not be changed once removed. |
- Carefully release clip fasteners - arrows - and remove spiral spring - 1 - from steering column switch module.
- Remove Steering Angle Sensor G85 - 1 - from Steering Column Electronic Systems Control Module J527 in direction of - arrow -.
Scheme 288
- Remove screws - arrows -.
- Remove Steering Column Electronics Systems Control Module J527 - 1 - from steering column switch module.
Installing
Install in reverse order of removal, noting the following
- Ensure all fasteners and electrical connectors are properly connected and locked into place.
- Install steering column switch module «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Tightening torques
| Component | Nm |
|---|---|
| Steering column switch module to Steering Column Electronics Systems Control Module J527 | 0.6 |
| Intermittent wiper switch E22 to Steering Column Electronics Systems Control Module J527 | 0.6 |
| Cruise Control Switch E45 to Steering Column Electronic Systems Control Module J527 | 0.6 |
Steering Column Electronics Systems Control Module J527 , front multi-pin connector assignments
The Steering Column Electronics Systems Control Module J527 is part of the steering column switch module. It receives signals e.g. from the steering column switches.
Scheme 289
A - Cruise control system multi-pin connector
1 - Ground (GND) ( - )
2 - Set
3 - Distance
4 - 12 V voltage supply
5 - Activation/touch function "Off"
6 - Acceleration/deceleration
7 - Locked "Off"
B - Turn signal switch multi-pin connector
1 - Ground (GND) ( - )
2 - Radio telephone (special-purpose vehicles)
3 - Alarm (special-purpose vehicles)
4 - Vacant
5 - Headlamp flasher/light control
6 - Turn signal indicators
C - Multi-function steering wheel / Tiptronic / heated steering wheel multi-pin connector
7 Tiptronic ""
8 - Multi-function steering wheel "+" voltage supply
9 - Multi-function steering wheel data
10 - Tiptronic "+"
11 - Multi-function steering wheel dimmer
12 - Tiptronic earth
13 - Heated steering wheel "+"
14 - Heated steering wheel ""
D - Steering angle sensor multi-pin connector
1 - Light barrier 5
2 - Light barrier 3
3 - Light barrier 1
4 - 12 V voltage supply
5 -5 V voltage supply
6 - Light barrier 6
7 - Light barrier 4
8 - Light barrier 2
9 - Steering angle sensor Ground (GND) ( - )
10 - Light barrier 7
E - Horn switch multi-pin connector
1 - Horn Ground (GND) ( - )
2 - Horn
F - Wiper switch multi-pin connector
1 - Ground (GND) ( - )
2 - Intermittent wipe potentiometer
3 - Multi-function Indicator (On-board computer)
4 - Vacant
5 - Wash
6 - Wipe
Scheme 290
Multi-pin connector, 16-pin
- Ground (GND) ( - )
- Terminal 30 (B+)
- CAN-Bus Powertrain (shielding)
- Vacant
- Cruise control locked Off
- Alarm (special-purpose vehicles)
- Radio telephone (special-purpose vehicles)
- CAN-Bus Low (convenience)
- CAN-Bus High (convenience)
- CAN-Bus High - Powertrain (shielding
- CAN- Bus Low - Powertrain (shielding
- Ignition lock terminal 75
- Ignition lock terminal 15
- Ignition lock S contact
- Ignition lock terminal 50
- Ignition lock terminal P
Turn Signal Switch E2 , removing and installing
Removing
- Remove steering column switch module --> «Steering column switch module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-switch-module-removing-and) .
| CAUTION | Ensure steering is in straight ahead and centered prior to removing spiral spring. Position of spiral spring must not be changed once removed. |
- Carefully release clip fasteners - arrows - and remove spiral spring - 1 - from steering column switch module.
- Remove Steering Angle Sensor G85 - 1 - from Steering Column Electronic Systems Control Module J527 in direction of - arrow -.
Scheme 291
- Remove screws - arrows -.
- Remove the Steering Column Electronics Systems Control Module J527 - 2 - and Windshield Wiper/Washer Switch E22 - 3 - from steering column switch module.
- Remove Cruise Control Switch E45 - 1 - from steering column switch module.
- Remove screw - 5 - and remove retaining clip - 4 -.
Installing
Further Install in reverse order of removal, noting the following
- Ensure all fasteners and electrical connectors are properly connected and locked into place.
- Install steering column switch module «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Tightening torques
| Component | Nm |
|---|---|
| Steering column switch module to Steering Column Electronics Systems Control Module J527 | 0.6 |
| Intermittent wiper switch E22 to Steering Column Electronics Systems Control Module J527 | 0.6 |
| Cruise Control Switch E45 to Steering Column Electronic Systems Control Module J527 | 0.6 |
Cruise Control Switch E45 , removing and installing
Removing
- Remove steering column switch module --> «Steering column switch module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-switch-module-removing-and) .
| CAUTION | Ensure steering is in straight ahead and centered prior to removing spiral spring. Position of spiral spring must not be changed once removed. |
- Carefully release clip fasteners - arrows - and remove spiral spring - 1 - from steering column switch module.
- Remove Steering Angle Sensor G85 - 1 - from Steering Column Electronic Systems Control Module J527 in direction of - arrow -.
Scheme 292
- Remove screws - arrows -.
- Remove Steering Column Electronics Systems Control Module J527 - 2 - from steering column switch module.
- Remove Cruise Control Switch E45 - 1 - from steering column switch module.
Installing
Further Install in reverse order of removal, noting the following
- Ensure all fasteners and electrical connectors are properly connected and locked into place.
- Install steering column switch module «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Tightening torques
| Component | Nm |
|---|---|
| Steering column switch module to Steering Column Electronics Systems Control Module J527 | 0.6 |
| Intermittent wiper switch E22 to Steering Column Electronics Systems Control Module J527 | 0.6 |
| Cruise Control Switch E45 to Steering Column Electronic Systems Control Module J527 | 0.6 |
Windshield Wiper/Washer Switch E22 , removing and installing
Removing
- Remove steering column switch module --> «Steering column switch module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-switch-module-removing-and) .
| CAUTION | Ensure steering is in straight ahead and centered prior to removing spiral spring. Position of spiral spring must not be changed once removed. |
- Carefully release clip fasteners - arrows - and remove spiral spring - 1 - from steering column switch module.
- Remove Steering Angle Sensor G85 - 1 - from Steering Column Electronic Systems Control Module J527 in direction of - arrow -.
Scheme 293
- Remove screws - 1 - and - 2 -.
- Remove Windshield Wiper/Washer Switch E22 - 3 - from steering column switch module - arrow -.
Installing
Further Install in reverse order of removal, noting the following
- Ensure all fasteners and electrical connectors are properly connected and locked into place.
- Install steering column switch module «Installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment) .
Tightening torque
| Component | Nm |
|---|---|
| Windshield Wiper/Washer Switch E22 to Steering Column Electronics Systems Control Module J527 | 0.6 |
Lock cylinder, removing and installing
Note. The immobilizer reading coil is integrated with the lock cylinder and cannot be serviced or replaced individually. Should the reading coil malfunction, replace complete lock cylinder. . Observe reading coil specifications when replacing lock cylinders --> Reader coil, replacing .
Removing
- Remove steering column switch module --> «Steering column switch module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-switch-module-removing-and)
- Disconnect electrical connection at reader coil.
Vehicles with automatic transmission
- Move selector lever to "P".
Scheme 294
- Turn ignition key to "Ignition ON" position - arrow -.
- Then lift interlock lever - 1 - slightly and pull locking cable - 2 - out of ignition lock housing.
All models
Note. The spare key is necessary for removing the lock cylinder, because the following sequence can only be performed using an ignition key with flat key grip, i.e. without illumination and without remote control.
Scheme 295
- Turn spare key to ignition "ON" position, thus aligning recess in trim - arrow - with hole in ignition lock.
Note. The illustration shows the correct lock position without the ignition key.
Scheme 296
- Insert a steel wire or pin ( approx. 1.5 mm) in hole - 1 - as far as it will go, at the same time pulling lock cylinder - 2 - with reader coil out of steering lock housing - 3 -.
| CAUTION | Steering lock must not be operated without the lock cylinder, otherwise it will lock completely. The entire steering lock must then be replaced. |
Note. When replacing lock cylinder, note immobilizer reader coil specifications --> Reader coil, replacing .
Installing
Install in reverse order of removal, noting the following
- Insert spare ignition key into lock cylinder and turn to ignition "on" position.
- Re-insert steel wire/pin - 1 - in hole on end face as far as it will go.
- Insert lock cylinder - 2 - with reader coil in steering lock housing - 3 -.
- Then pull out steel wire and press in lock cylinder firmly until catch engages audibly.
- Connect electrical connector on immobilizer reader coil.
Vehicles with automatic transmission
- Turn ignition key to "Ignition ON" position.
- Slide locking cable - 2 - into ignition lock housing until it engages audibly.
Ignition/starter switch, removing and installing
Removing
- Remove steering column switch module --> «Steering column switch module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__steering-column-switch-module-removing-and) .
- Disconnect electrical connection at immobilizer reader coil.
Scheme 297
- Disconnect electrical connection - 1 - at ignition/starter switch.
- Remove sealing paint from both securing screws - arrows -.
- Loosen bolts - arrows - (do not remove) and pull ignition/starter switch out of steering lock housing - 2 -.
Installing
Install in reverse order of removal, noting the following
Note. Ensure that the ignition/starter switch and lock cylinder are in the same position, e.g. "Ignition ON" , when installing. Apply sealing paint to bolts - arrows - at steering lock housing - 2 -. Install steering column switch module Installing .
Scheme 298
15 - Terminal 15
30 - Terminal 30 (B+)
50 - Terminal 50
50b - Terminal 50b
75 - Terminal 75
86s - Terminal 86s
P - Park position
At time of publication, the optional parking aid system (also know as "Acoustic park assist" or " Parktronic (R) " ) is only available as a 4-channel system that monitors the area to the rear of the vehicle.
The system is activated automatically whenever the vehicle is shifted into reverse.
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the parking aid system. Always read the owners manual and review applicable system functions and operation limitations.
Note. Additional information
Owners Manual
Wiring Diagrams Component Locations
Parking aid system functions are controlled by the Parking Aid Control Module J446 which has On Board Diagnostic (OBD) capability. If malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot parking aid system malfunctions by performing OBD program using Vehicle Diagnosis, Testing and Information System VAS 5051/5052 in operating mode "Guided Fault Finding".
Scheme 299
1 - Front sensors not applicable to USA/Canada
2 - Not applicable to USA/Canada
3 - Not applicable to USA/Canada
4 - Rear Parking Aid Warning Buzzer H15
Sedan
- Under rear parcel shelf
- Removing and installing --> «Rear Parking Aid Warning Buzzer H15 - Sedan, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-parking-aid-warning-buzzer-h15)
Avant
- In luggage compartment rear left under side trim
- Removing and installing --> «Rear Parking Aid Warning Buzzer H15 - Avant, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-parking-aid-warning-buzzer-h15)
5 - Rear Parking Aid Sensors
- In rear bumper
- Removing and installing --> «Rear parking aid sensors, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
6 - Parking Aid Control Module J446
- in left rear luggage compartment under side trim
- Removing and installing --> «Parking Aid Control Module J446 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__parking-aid-control-module-j446)
Parking Aid Control Module J446 , removing and installing
Removing
- Location: At left rear or luggage compartment below side trim/taillamp.
- Remove left luggage compartment side trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Sedan
Scheme 300
- Remove screws - arrows - and remove base mount - 1 -.
Scheme 301
- Where applicable, disconnect electrical connections and antenna wiring at rear of Navigation Interface R94 - 1 -.
Note. Disregard - 2 -.
Avant
Scheme 302
- Remove screws - arrows - and remove base mount - 1 -.
All
Scheme 303
- Disconnect electrical connections - 2 - and - 3 -.
- Remove screws - arrows -.
- Remove Parking Aid Control Module J446 - 1 -.
Note. Sedan installation is illustrated.
Installing
Install in reverse order of removal.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Parking Aid Control Module J446 to body - screw | 1.8 |
Rear Parking Aid Warning Buzzer H15 - Sedan, removing and installing
- Location: At right rear under rear parcel shelf
Removing
- Remove rear parcel shelf --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Disconnect electrical connection.
- Remove expander clip threaded pin using a TORX screwdriver.
Scheme 304
- Remove warning buzzer - arrow - upward out of lower luggage compartment partition.
Installing
Install in reverse order of removal, noting the following
- Press threaded pins into expander clips.
- Install rear parcel shelf --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Rear Parking Aid Warning Buzzer H15 - Avant, removing and installing
- Location: In left rear luggage compartment under side trim
Removing
- Remove left side trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Disconnect electrical connection.
- Remove expander clip threaded pin using a TORX screwdriver.
Scheme 305
- Remove warning buzzer - arrow - upward.
Installing
Install in reverse order of removal, noting the following
- Press threaded pins into expander clips.
- Install left side trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 306
- Location: In rear bumper cover - arrows -.
Removing
- Remove rear bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior)
Scheme 307
- Disconnect applicable electrical connection - 1 - from sensor.
- Press both catches - arrows - to side and press sensor - 2 - inward from outside.
Installing
Install in reverse order of removal, noting the following
- Install rear bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
The automatic headlight aim control system is installed on vehicles with High Intensity Gas Discharge (HID) headlamps.
The system contains the following components
- Level control system sensors at front and rear axles
- Headlight range control module
- Headlight beam adjusting motors integrated with headlight units
When driving, the system automatically adapts the headlight beam inclination dependent on vehicle suspension movement and load. Headlight glare to oncoming traffic is minimized.
The headlight range control module is controlled by a microprocessor and has On Board Diagnostic (OBD) capability. If malfunctions occur in any of the system components, corresponding DTCs are stored in the Diagnostic Trouble Code (DTC) memory.
Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with VAS 5051/5052 tester in mode "Guided Fault Finding".
Scheme 308
1 - Headlamp beam adjustment motors
- Left Headlamp Beam Adjustment Motor V48
- Right Headlamp Beam Adjustment Motor V49
2 - Headlamp Range Control Module J431
- Location: behind glove box at instrument panel support
- Removing and installing --> «Headlamp Range Control Module J431 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamp-range-control-module-j431)
3 - Left Rear Level Control System Sensor G76
- Location: at left rear suspension ink
- Removing and installing --> «42 - REAR SUSPENSION»(/audi/a4/b7-2004-2009/remont/axle-shafts/#suspension-wheels-steering)
4 - Left Front Level Control System Sensor G78
- Location: at left front track control link
- Removing and installing --> «40 - FRONT SUSPENSION»(/audi/a4/b7-2004-2009/remont/axle-shafts/#suspension-wheels-steering)
Headlamp Range Control Module J431 , removing and installing
Removing
- Location: at instrument panel carrier behind glove box
- Remove glove box --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 309
- Disconnect electrical connection - arrow -.
- Remove screws - 1 - and - 2 - and remove module.
Installing
Install in reverse order of removal.
Tightening torque
| Component - fastener | Nm |
|---|---|
| Control module to body - screw | 3 |
Light Switch E1 , removing and installing
Removing
Scheme 310
- Push in light switch rotary knob - arrow 1 - and simultaneously turn clockwise - arrow 2 -.
- Hold switch in this position.
Scheme 311
- Pull light switch out of switch housing - arrow 3 -.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Press switch into switch housing until catch engages.
Ambient Illumination Deactivation Switch E491 , removing and installing
Where equipped, the Ambient Illumination Deactivation Switch E491 controls the "coming home " and "leaving home" lighting function.
Additional information Owners Manual
Removing
- Remove light switch --> «Light Switch E1 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__light-switch-e1-removing-and) .
Scheme 312
- Reach through opening for light switch and press the switch unit out of the switch housing in direction of - arrow -.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Install light switch --> «Light Switch E1 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__light-switch-e1-removing-and) .
Daytime running lamps (DRL) switch, removing and installing
Where equipped, the daytime running lamps switch controls DRL lighting function where desired (on US vehicles only).
Removing
- Remove light switch --> «Light Switch E1 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__light-switch-e1-removing-and) .
- Reach through opening for light switch and press the switch unit out of the switch housing in direction of - arrow -.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Install light switch --> «Light Switch E1 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__light-switch-e1-removing-and) .
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Open glove compartment.
Scheme 313
- Carefully pull off trim panel - 1 - using hook 3370 as illustrated.
Scheme 314
- Carefully lever out Emergency Flasher Button E229 - 1 - from switch mounting - arrows - using a flat screwdriver.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Push switch into mounting in instrument panel and ensure it is properly engaged.
Switches in center console, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Open glove compartment.
- Carefully pull off trim panel - 1 - to rear using hook 3370.
Scheme 315
- Use flat screwdriver to carefully pry appropriate switch out of mounting - arrows -.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Push switch into mounting in instrument panel and ensure it is properly engaged.
Front heated seat regulating switches, removing and installing
Front seat heating switches are integrated into A/C Control Head E87 and cannot be replaced separately.
Rear heated seat regulating switches, removing and installing
Procedure for Left Rear Heated Seat Regulating Switch E128 and Right Rear Heated Seat Regulating Switch E129 is the same.
Removing
- Remove rear ashtray.
Scheme 316
- Press retaining hooks - arrow A - on right and left outwards and swivel switch mounting to rear - arrow B -.
- Disengage switch mounting at rear center console.
- Disconnect electrical connections.
- Unclip switches - 1 - and - 2 - from switch mounting.
Installing
Install in reverse order of removal.
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Scheme 317
- Open cigarette lighter cover - 2 -.
- Lift Start System Button E378 - 1 - up - arrow - and remove from installation frame as illustrated.
- Disconnect electrical connection.
Installing
Install in reverse order of removal.
Glove Compartment Lamp Switch E26 , removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Open glove compartment.
Scheme 318
- Pull off cover on right of instrument panel - arrow - using hook 3370.
Scheme 319
- Disconnect electrical connection - 2 -.
- Pull out hinge pin - 1 -.
- Release switch - 3 - in clockwise direction - arrow - and detach.
Note. Switch illustrated with glove compartment removed..
Installing
Install in reverse order of removal.
Mirror selector/adjustment switch, removing and installing
Mirror Adjustment Switch E43 , Mirror Selector Switch E48 , and Mirror (with fold-away function) Switch E168 (where applicable) are integrated into a single module.
Removing
- Remove front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 320
- Disconnect electrical connection - 1 - at mirror adjustment switch - 2 -.
- Use small screwdriver to carefully release fasteners - arrows -.
- Pull mirror adjustment switch downwards out of door trim.
Installing
Install in reverse order of removal, noting the following
Note. When installing, ensure symbol trim is inserted before the mirror adjustment switch. Press mirror adjustment switch into switch mounting until retaining hooks engage. Install front door trim --> 70 - INTERIOR TRIM .
Drivers power window switch panel - 2 switches, removing and installing
Removing
- Remove front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 321
- Use small screwdriver to carefully release fasteners - arrows -.
- Pull window switch downwards out of door trim.
- Disconnect electrical connection - 2 - at window switch - 1 -.
Installing
Install in reverse order of removal, noting the following
- Press window switch into switch mounting until retaining hooks engage.
- Install front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Drivers power window switch panel - four switches, removing and installing
Removing
- Remove front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 322
- Release retaining hooks on armrest side by pressing retaining element - arrows -.
- Use small screwdriver to carefully release retaining hooks - 1 - on trim side.
- Pull window switches - 2 - downwards out of door trim.
- Disconnect electrical connection - 3 - at window switch.
Installing
Install in reverse order of removal, noting the following
- Press window switch into switch mounting until it engages.
- Install front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Front passengers power window switch panel, removing and installing
Removing
- Remove front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 323
- Use small screwdriver to carefully release fasteners - arrows -.
- Pull window switch downwards out of door trim.
- Disconnect electrical connection - 1 - at window switch - 2 -.
Installing
Install in reverse order of removal, noting the following
- Press window switch into switch mounting until retaining hooks engage.
- Install front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Rear door power window switches, removing and installing
Removing
- Remove rear door trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 324
- Remove screws - 1... 3 -.
- Remove armrest and disconnect electrical connection.
Scheme 325
- Pull switch mounting - 1 - from armrest - 2 - - arrow -.
Scheme 326
- Use small screwdriver to carefully release fasteners - arrows -.
- Pull out window switch downwards.
Installing
Install in reverse order of removal, noting the following
- Press window switch into switch mounting until retaining hooks engage.
- Install rear door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Sunroof Switch E8 , removing and installing
Removing
- Remove front interior/reading lamp --> «Front interior lamp module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__front-interior-lamp-module-removing-and) .
Scheme 327
- Disconnect electrical connection - 2 -.
- Remove screws - arrows -.
- Take sunroof switch E8 - 1 - out of interior light/reading light.
Installing
Install in reverse order of removal, noting the following
- Install front interior/reading lamp --> «Front interior lamp module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__front-interior-lamp-module-removing-and) .
Tightening torque
| Component | Nm |
|---|---|
| Sunroof Switch E8 to interior light/reading light | 1.5 |
Door contact switches, removing and installing
Door contact switches are integrated with the individual door locks and cannot be serviced or replaced separately.
- Replacing front door lock: --> «57 FRONT DOORS/DOOR COMPONENTS/CENTRAL LOCKING SYSTEM»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
- Replacing rear door lock: --> «58 REAR DOORS/DOOR COMPONENTS»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Drivers Interior Locking Switch E150 , removing and installing
Removing
- Remove front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Disconnect electrical connection - 2 -.
Scheme 328
- Press switch - 1 - out of drivers door trim towards inside of vehicle - arrow -.
Installing
Install in reverse order of removal, noting the following
- Install front door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Rear/Center Central Locking Switch E286 , removing and installing
Removing
- Remove rear ashtray.
Scheme 329
- Press retaining hooks - arrow A - on left and right outwards and swivel switch mounting to rear - arrow B -.
- Disengage switch mounting at center console.
- Disconnect electrical connection.
- Unclip switch - 1 - from switch mounting.
Installing
Install in reverse order of removal.
Scheme 330
- Location: drivers door trim in storage compartment - detail
Removing
- Remove drivers door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Disconnect electrical connections.
Scheme 331
- Carefully release retaining hooks - arrows -.
- Press switches as applicable - 1 - and - 2 - towards rear out of trim.
Installing
Install in reverse order of removal, noting the following
- Install drivers door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Drivers Seat Memory Program Control E97 , removing and installing
Special tools, testers and auxiliary items required
Scheme 332
- Removal wedge 3409
Removing
Scheme 333
- Remove switch - 1 - using removal wedge 3409 as illustrated.
- Disconnect electrical connection.
Scheme 334
- Use small screwdriver to carefully release fasteners - arrows -.
- Remove switch - 1 - from mounting - 2 -.
Installing
Install in reverse order of removal, noting the following
- Press switch into switch mounting until fasteners engage.
Trunk Lock/Alarm/Central Locking Switch F124 - Sedan through 10.04, removing and installing
Removing
- Remove rear lid lock --> «55 HOOD, LIDS»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 335
- Use flat screwdriver to pry plastic tab - 3 - from retaining pins - 1 -.
- Fold plastic tab completely to rear.
- First pull contact switch - 2 - to one side and then upwards out of lock for rear lid.
Installing
Install in reverse order of removal, noting the following
Note. Ensure washers are properly positioned between plastic tab and lock for rear lid. Install rear lid lock --> 55 HOOD, LIDS .
Trunk Lock/Alarm/Central Locking Switch F124 - Avant through 10.04, removing and installing
The rear lid contact switch is integrated with the rear lid lock and cannot be serviced or replaced separately.
- Replace rear lid lock --> «55 HOOD, LIDS»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 336
The rear lid contact switch is integrated with the rear lid lock - arrow - and cannot be serviced or replaced separately.
- Replace rear lid lock --> «55 HOOD, LIDS»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
12 V Socket U5 - in luggage compartment through 10.04, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
Scheme 337
- Carefully pull 12 V socket - 1 - from luggage compartment trim using hook 3370.
Note. Pay attention to retaining hooks - 2 - and - 4 - when pulling out socket. Disconnect electrical connection - 3 -.
Installing
Install in reverse order of removal.
12 V Socket U5 - in luggage compartment from 11.04, removing and installing
Removing
- Audi A4 S4: Release lower right part of luggage compartment side trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Audi RS4: Release lower right part of luggage compartment rear trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Disconnect electrical connection at socket.
Scheme 338
- Remove nut - 1 -.
- Remove 12 V socket - 2 - from trim.
Installing
Install in reverse order of removal, noting the following
- Install luggage compartment trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
All A4 from model year 2002 are equipped with Immobilizer Generation III.
Generation III has the same functionality as the previous version. However, in addition to the normal data exchange between the immobilizer control module and ignition key, Gen. III includes data exchange between the immobilizer control module and Engine Control Module (ECM).
The immobilizer control module is integrated into the instrument cluster, i.e. it is replaced together with instrument cluster --> Instrument cluster, removing and installing .
Data exchange between the Immobilizer control module and ECM takes place over the vehicle CAN-Bus network.
Function
Immobilizer III consists of
- an adapted control module for anti-theft immobilizer (integrated in instrument cluster)
- a warning light in instrument cluster
- a reading coil at ignition lock
- an adapted Engine Control Module (ECM)
- and adapted ignition keys with electronics (transponder)
The anti-theft immobilizer is a system for enabling/locking the Engine Control Module (ECM) via the CAN wire.
The transponder code consists of a fixed code and a variable code. This is different for every start procedure and therefore acts as a copy protection for the transponder.
Every immobilizer contains a different computational rule for the variable code that remains the same for its entire service life. During adaptation of the vehicle key, the immobilizer writes this computational rule into the transponder and simultaneously learns the fixed code of the current key.
The fixed code identifies each individual key so that a key that is lost can be blocked from usage. Each time the ignition is switched on, the induction coil for immobilizer reads the transponders fixed code and then the variable code and determines whether this key is authorized for vehicle start.
The warning lamp lights up briefly (max. 3 seconds) and then goes out when an authorized vehicle key is used.
When an unauthorized vehicle key is used or when a system malfunction occurs, the warning lamp blinks constantly during ignition "on".
The electronic anti-theft immobilizer has extensive On Board Diagnostic (OBD) capabilities. If malfunctions occur in any of the system components, corresponding Diagnostic Trouble Codes (DTC) are stored in the DTC memory of the anti-theft immobilizer.
Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with VAS 5051 or VAS 5052 in mode "Guided Fault Finding".
Malfunctioning transponder and/or lost keys
- The transponder is integrated into the vehicle key and cannot be replaced separately.
- The complete vehicle key must be replaced if the transponder malfunctions.
- Order replacement key with integrated transponder on the basis of the lock number and/or VIN.
- Adapt all vehicle keys using VAS 5051/5052 in mode "Guided Fault Finding".
Reader coil, replacing
- The reader coil is integrated into the lock cylinder and cannot be serviced or replaced separately.
- The complete lock cylinder must be replaced if the reader coil malfunctions --> «Lock cylinder, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__lock-cylinder-removing-and-installing)
- Order replacement lock cylinder on the basis of the lock number and/or VIN.
Lock set or instrument cluster, replacing.
Follow replacement procedures as specified using VAS 5051/5052 in mode "Guided Fault Finding".
Alarm Horn H12 , removing and installing
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove right interior trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 339
- Remove nut - 1 -.
- Disconnect electrical connection - 2 -.
- Remove horn - 3 -.
- If necessary, remove horn bracket - 5 - by removing bolt - 4 -.
Installing
Install in reverse order of removal, noting the following
- Install trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Alarm Horn H12 to bracket - nut | 5 |
| Bracket to body - bolt | 9 |
Make-up Mirror Illumination L31 , removing and installing
Removing
Scheme 340
- Carefully pry out light at recess - arrow - using a flat-head screwdriver.
- Disconnect electrical connection.
Scheme 341
- Remove bulb cover - arrow -.
- Remove bulb (12 V, 5W) from socket on reverse side of make-up mirror light.
Installing
Install in reverse order of removal.
Front interior lamp module, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
Scheme 342
- Carefully remove interior lamp module trim using hook 3370 as illustrated - arrow -.
Scheme 343
- Where applicable, disconnect microphone electrical connection - 1 -.
Scheme 344
- Remove screws - arrows -.
- Swivel down module and remove from opening in headliner.
- Disconnect electrical connections.
Installing
Install in reverse order of removal, noting the following
- Engage interior lamp module and tighten screws to 3 Nm.
Ambient lighting LEDs, removing and installing
Removing
- Remove front interior lamp module --> «Front interior lamp module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__front-interior-lamp-module-removing-and) .
Scheme 345
- Disconnect electrical connections - 1... 3 -.
- Release retaining clips - arrows - and remove LED - 4 -.
Installing
Install in reverse order of removal, noting the following
- Install front interior lamp module --> «Front interior lamp module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__front-interior-lamp-module-removing-and) .
Front Interior Light W1 - bulbs, replacing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
Scheme 346
- Carefully remove interior lamp lens using hook 3370 as illustrated.
Scheme 347
- Remove bulb as applicable - 1 - or - 2 - (12 V, 10 W) from holder.
Installing
Install in reverse order of removal, noting the following
- Press on lens until it engages.
Front Passengers Map/Reading Light W13 , Drivers Map/Reading Light W19 - bulbs, replacing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Carefully remove interior lamp module trim using hook 3370 as illustrated.
Scheme 348
- Remove bulb as applicable - 1 - or - 2 - (12 V, 5 W) from bulb holder.
Installing
Install in reverse order of removal, noting the following
- Press on trim until it engages.
Front Passengers Airbag Disabled Indicator Lamp K145 - from 11.04, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
- Open glove compartment.
- Carefully remove trim panel - 1 - using hook 3370 as illustrated.
Scheme 349
- Carefully pry out lever out indicator lamp - 1 - from switch mounting - arrows - using a flat screwdriver.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Push lamp assembly into mounting in instrument panel and ensure it is properly engaged.
Rear interior lamp module, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
Scheme 350
- Carefully remove rear interior lamp module from headliner opening using hook 3370 as illustrated.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Insert interior lamp module in opening in headliner and clip into place.
Left Rear Reading Light W11 , Right Rear Reading Light W12 - bulbs, replacing
Removing
- Remove rear interior lamp module --> «Rear interior lamp module, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-interior-lamp-module-removing-and) .
Scheme 351
- Screw applicable bulb 12 V, 5 W - arrow - from holder.
Installing
Install in reverse order of removal.
Glove Compartment Light W6 , removing and installing
Removing
- Turn light switch to position "0".
Scheme 352
- Using a flat-head screwdriver, press in retaining tab - 1 - and pry out glove box light - 2 -.
- Disconnect electrical connection - 3 -.
- Remove bulb (12 V, 5 W) from bulb holder.
Installing
Install in reverse order of removal, noting the following
- Insert glove box light in opening and engage on opposite side.
Front ashtray light, removing and installing
Removing
- Pull radio approx 10 mm out of mounting slot --> «91 - COMMUNICATION»(/audi/a4/b7-2004-2009/remont/accessories-control-systems/#communication) .
- Remove A/C Control Head E87 --> «87 AIR CONDITIONING»(/audi/a4/b7-2004-2009/remont/ac-compressor/#heating-air-conditioning) .
- Open front ashtray.
Scheme 353
- Remove front ashtray insert - 2 -.
- Remove cover - 1 - for gear lever or selector lever on both sides - arrows -.
Scheme 354
- Remove screws - arrows -.
- Lift out front ashtray upwards.
- Disconnect electrical connection.
Scheme 355
- Release retaining clips - 2 - and swivel light - 1 - for front ashtray out of retainer - arrow -.
Installing
Install in reverse order of removal, noting the following
- Install A/C Control Head E87 --> «87 AIR CONDITIONING»(/audi/a4/b7-2004-2009/remont/ac-compressor/#heating-air-conditioning) .
Tightening torque
| Component | Nm |
|---|---|
| Front ashtray to center console | 5 |
Rear ashtray light, removing and installing
If rear ashtray light malfunctions, replace complete switch mounting panel
- Rear seat heating switch mount --> «Rear heated seat regulating switches, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rear-heated-seat-regulating-switches-removing)
- Rear central locking switch mount --> «Rear/Center Central Locking Switch E286 , removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__rearcenter-central-locking-switch-e286)
Drivers Door Opener Illumination L108 , Front Passengers Door Opener Illumination L109 , Left Rear Door Opener Illumination L110 , Right Rear Door Opener Illumination L111 , removing and installing
Removing
- Remove applicable door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 356
- Pull bulb holder with bulb - 1 - out of door opener.
- Remove bulb.
Installing
Install in reverse order of removal, noting the following
- Insert bulb for door opener light in opening and engage.
- Install door trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Door entry warning lights, removing and installing
Procedure for all door entry and warning lights
- Drivers Door Warning Light W30
- Left Front Entry Light W31
- Right Front Entry Light W32
- Left Rear Entry Light W33
- Right Rear Entry Light W34
- Front Passengers Door Warning Light W36
- Left Rear Door Warning Light W37
- Right Rear Door Warning Light W38
is the same.
Removing
Scheme 357
- Use a flat-head screwdriver to press in retaining tab - 1 - and pry out door light - 2 -.
- Disconnect electrical connection - 3 -.
Scheme 358
- Where applicable, carefully pry off cover at door light - arrow -.
- Remove bulb (12 V, 5 W) from bulb holder.
Installing
Install in reverse order of removal, noting the following
- If applicable, attach cover at door light.
- Insert door light in opening and engage on opposite side.
Left Footwell Light W9 , Right Footwell Light W10 , removing and installing
Removing
Scheme 359
- Use a flat screwdriver to press in retaining tab - 1 - and pry out footwell light - 2 -.
- Disconnect electrical connection - 3 -.
- Remove bulb (12 V, 5 W) from holder.
Installing
Install in reverse order of removal, noting the following
- Insert footwell light in opening and engage on opposite side.
Left Rear Footwell Light W45 , Right Rear Footwell Light W46 , removing and installing
Removing
Scheme 360
- Slide footwell light in direction of - arrow - and disengage.
Scheme 361
- Pry off cap - arrows -.
- Remove bulb (12 V, 5 W) from holder.
Installing
Install in reverse order of removal.
Left Luggage Compartment Light W18 , Right Luggage Compartment Light W35 - Sedan, removing and installing
Removing
Scheme 362
- Use a flat screwdriver to press in retaining tab - 1 - and pry out luggage compartment light - 2 -.
- Disconnect electrical connection - 3 -.
- Remove bulb (12 V, 5 W) from holder.
Installing
Install in reverse order of removal.
Luggage Compartment Light W3 - Avant, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
Scheme 363
- Carefully remove luggage compartment light from headliner opening using hook 3370 as illustrated - arrow -.
- Disconnect electrical connection.
Installing
Install in reverse order of removal.
Luggage Compartment Light W3 - bulb, Avant, replacing
Removing
Scheme 364
- Insert small screwdriver at recess in lens and carefully pry off lens - arrow -.
- Remove bulb (12 V, 6 W) from holder.
Installing
Install in reverse order of removal, noting the following
- Press on lens until it engages.
Rear Lid Courtesy Lamp W51 - Avant, removing and installing
Special tools, testers and auxiliary items required
- Hook 3370
Removing
Scheme 365
- Carefully pull rear lid light in direction of - arrow - using hook 3370 as illustrated.
- Disconnect electrical connection.
Scheme 366
- Where applicable, pull reflector - 1 - out of rear lid light - 2 -.
- Remove bulb (12 V, 6 W) from holder.
Installing
Install in reverse order of removal, noting the following
- Insert rear lid light in opening and engage on opposite side.
Signal Horn/Dual Tone Horn H1 - through 10.04, removing and installing
Removing
- Remove applicable headlamp
- Halogen headlamp through 10.04 --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamps-removing-and-installing)
- HID headlamp through 10.04 --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
- HID "Bi-Xenon" headlamp through 10.04 --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
Scheme 367
- Disconnect electrical connection - 2 -.
- Remove nut - 1 - and detach horn from retainer.
Note. Illustration shows bumper removed for clarity.
Installing
Install in reverse order of removal, noting the following
- Install headlamp.
- Halogen headlamp through 10.04 --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__headlamps-removing-and-installing)
- HID headlamp through 10.04 --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
- HID "Bi-Xenon" headlamp through 10.04 --> «Headlamps, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment)
Tightening torque
| Component - fastener | Nm |
|---|---|
| Horn to bracket - nut | 5 |
Signal Horn/Dual Tone Horn H1 - from 11.04, removing and installing
Removing
Vehicles without charge air cooler or additional radiator
- Release fasteners - 1 - and - 2 - and remove front noise insulation.
Vehicles with charge air cooler or additional radiator
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 368
All models
- Disconnect electrical connection - 3 -.
- Remove nut - 1 - and detach horn - 2 - from retainer.
Note. Illustration shows bumper removed for clarity.
Installing
Install in reverse order of removal, noting the following
Vehicles with charge air cooler or additional radiator
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Horn to bracket - nut | 5 |
Heated steering wheel, servicing
- Remove airbag module and steering wheel --> «69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Check wiring connections Wiring Diagrams.
Note. Steering wheel must be replaced if heated steering wheel malfunctions.
Garage Door Opener Control Head E284 , removing and installing
Removing
Scheme 369
- Use small screwdriver to pry control head out of sun visor at locations indicated - arrows -.
- Disconnect electrical connection.
Installing
Install in reverse order of removal.
Garage Door Opener Control Module J530 - through 10.04, removing and installing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Removing
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Scheme 370
- Remove bolt - 2 - and disengage retainer.
- Remove module - 1 - from bumper cover.
- Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Garage Door Opener Control Module J530 - from 11.04, removing and installing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
Removing
- Remove front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
Vehicles with headlamp washers
- Release clamp and remove hose - 1 -.
- Turn hose connector - 2 - on headlight washer system upward.
Continued for all
Scheme 371
- Release retaining clips - 4 - and fold back retainer - 3 -.
- Remove module - 2 - from bumper cover.
- Disconnect electrical connection - 1 -.
Installing
Install in reverse order of removal, noting the following
- Install front bumper cover --> «63 BUMPER»(/audi/a4/b7-2004-2009/remont/door-locks-anti-theft-systems/#body-exterior) .
| CAUTION | Before beginning repairs on the electrical system: Where applicable, obtain anti-theft radio security code. Switch off all electrical consumers. Switch the ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. On vehicles equipped with Audi Telematics by OnStar (R) , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery --> 91 - COMMUNICATION After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar (R) , switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module --> 91 - COMMUNICATION |
Fuse panel, removing and installing
Removing
- Disconnect battery. Audi A4 S4 --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) . Audi RS4 --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Where applicable, remove drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 372
- Remove screws - 1 - for fuse panel - 2 -.
- Release upper an d lower retaining clips and detach fuse panel from central tube for instrument panel.
- Disengage wiring harness at central tube for instrument panel and set aside.
Scheme 373
- Cut open cable tie - 1 -.
- Release cover for fuse panel - arrows -.
- Remove fuses at fuse panel.
Scheme 374
- Remove retaining strip for connectors - arrows - and take connectors out of fuse panel.
- Unclip socket - 1 -.
Scheme 375
Note. Refer to the applicable wiring diagram for exact identification of connections on fuse box Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Reconnect battery. Required steps Audi A4 S4 «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) . Required steps Audi RS4 «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Fuse carrier to central tube for instrument panel - screw | 3 |
Vehicle Electrical System Control Module J519 , removing and installing
Note. Should Vehicle Electrical System Control Module J519 require replacement, follow replacement procedures as specified using VAS 5051/5052 in mode "Guided Fault Finding".
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Where applicable, remove drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 376
- Remove nuts - arrows - and remove Vehicle Electrical System Control Module J519 - 1 -.
Scheme 377
- Unclip fuse carriers - 1... 3 -.
- Release retaining clip at connector - 4 - and disconnect connector.
- Disconnect electrical connections - 5 - and - 6 -.
Installing
Install in reverse order of removal, noting the following
- Install drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| Control module to central tube for instrument panel - nut | 2.4 |
9-position relay carrier, removing and installing
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Where applicable, remove drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 378
- Remove nuts - 3 - remove Vehicle Electrical System Control Module J519 with wires attached.
- Remove 9-position relay carrier - 4 -.
Note. Disregard - 1 - and - 2 -. Unclip the fuse carriers at the 9-position relay carrier. Remove relays and control modules and then unclip appropriate relay carrier.
Scheme 379
Note. Refer to the applicable wiring diagram for exact identification of connections on relay carrier Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| 9-position relay carrier to central tube for instrument panel - nut | 2.4 |
3-position relay carrier, removing and installing
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Where applicable, remove drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Remove screws - 1 - and detach 3-position relay carrier - 2 -.
Note. Disregard - 3 - and - 4 -. Unclip the fuse carriers at the 3-position relay carrier. Remove relays and control modules and then unclip appropriate relay carrier.
Scheme 380
Note. Refer to the applicable wiring diagram for exact identification of connections on relay carrier Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torque
| Component - fastener | Nm |
|---|---|
| 3-position relay carrier to central tube for instrument panel - nut | 3 |
4-position relay carrier, removing and installing
Removing
- Disconnect battery. Audi A4 S4 --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) . Audi RS4 --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Where applicable, remove drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Remove screws - 1 - for fuse panel - 2 -.
- Remove fuse panel from central tube for instrument panel.
- Disengage wiring harness at central tube for instrument panel and set aside.
- Remove nuts - arrows - and detach Vehicle Electrical System Control Module J519 - 1 - with wiring attached.
Scheme 381
- Pull the relays or control modules out of 4-position relay carrier.
- Mark assignment of wires at threaded connections - 2 - , - 3 - and - 5 -.
- Remove wires at threaded connections.
- Remove bolt - 1 - and nut - 4 -.
- Unclip fuse carriers at 4-position relay carrier.
- Remove relays and control modules and then unclip appropriate relay carrier.
Scheme 382
Note. Refer to the applicable wiring diagram for exact identification of connections on relay carrier Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install wires at threaded connections - 2 - , - 3 - and - 5 - according to markings.
- Reconnect battery. Required steps Audi A4 S4 «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) . Required steps Audi RS4 «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
- Install drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Tightening torques
| Component - fastener | Nm | |
|---|---|---|
| 4-pin relay carrier to chassis | Nut | 2.4 |
| Screw | 1.7 | |
| Wiring terminal connections - nut | 9 | |
Left connector station, removing and installing
Removing
Scheme 383
- Location: Left connector station - arrow - is located in left footwell beneath A-pillar trim.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove A-pillar trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Press retaining clip and detach connector point from A-pillar - arrow -.
- Unclip fuse panel at connector point.
- Remove relays or control modules and then unclip appropriate relay carrier.
Scheme 384
Note. Refer to the applicable wiring diagram for exact identification of connections on connector station Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install A-pillar trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Comfort System Central Control Module J393 , removing and installing
Removing
- Remove A-pillar trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Remove drivers seat --> «72 - SEAT - FRAMES»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Note. Safety belts at seat frame do not have to be unfastened. Fold back floor covering.
Scheme 385
- Release cover for electronics box (drivers side) - arrows - and fold cover towards right.
Scheme 386
- Release retaining clips - arrows - and remove Comfort System Central Control Module J393 - 1 - from electronics box.
- Disconnect electrical connections - 2... 6 -.
Note. Refer to the applicable wiring diagram for exact identification of connections on electronics box Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install A-pillar trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Install drivers seat --> «72 - SEAT - FRAMES»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Right connector station, removing and installing
Removing
Scheme 387
- Location: Right connector station - arrow - is located in right footwell beneath A-pillar trim.
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove A-pillar trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Press retaining clip and detach connector point from A-pillar - arrow -.
- Unclip fuse panel at connector point.
- Remove relays or control modules and then unclip appropriate relay carrier.
Note. Refer to the applicable wiring diagram for exact identification of connections on connector station Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Install A-pillar trim: --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Main fuse panel in left rear luggage compartment - Audi RS4, removing and installing
Removing
- Disconnect battery --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Remove left luggage compartment side trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
Scheme 388
- Loosen quick-release fasteners - 1 - and - 3 - and open main fuse box cover - 2 - in luggage compartment - arrow -.
Scheme 389
- Remove nuts - arrows -.
- Remove main fuse.
Scheme 390
Note. Refer to the applicable wiring diagram for exact identification of relays and fuses Wiring Diagrams.
Installing
Install in reverse order of removal, observing the following
- Install left luggage compartment side trim --> «70 - INTERIOR TRIM»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Connect battery. Required steps «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
Tightening torque
| Component | Nm | |
|---|---|---|
| Main fuse to main fuse box | 7,5 | |
Electronics box in plenum chamber, removing and installing
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove rubber seal of plenum chamber cover in direction of - arrow -.
- Remove plenum chamber cover - 1 - to front.
- Use screwdriver to pry off the two caps - 3 -.
- Loosen nuts - 4 - (do not remove).
- Remove wiper arms - 2 - from wiper shaft by tilting slightly.
- Remove nuts completely and remove wiper arms.
- Pull off retaining clips - 1 - and detach cowl panel grille - 5 -.
- Remove cover for electronics box in plenum chamber - arrows -.
Scheme 391
- Use screwdriver to pry off retaining strap - arrows -.
Scheme 392
- Release connector locks tabs - arrows - and disconnect electrical connections - 1 - and - 2 - for Motronic Engine Control Module (ECM) J220 (where applicable).
- Where applicable, release retaining clip for transmission control module.
Scheme 393
- Release connector lock - arrow - and disconnect from transmission control module.
Scheme 394
- Disconnect electrical connections - 2 - at rear of connector console.
- Remove wire - 1 -.
Scheme 395
- Release retaining clips - arrows - and lift auxiliary relay carrier out of electronics box.
- Remove the engine wiring harness at electronics box and bulkhead and set aside.
Scheme 396
- Remove nuts - arrows -.
- Lift electronics box and remove upwards.
Installing
Install in reverse order of removal.
Tightening torque
| Component | Nm |
|---|---|
| Plenum chamber electronics box to body | 3 |
Electronics box fan in plenum chamber, removing and installing
Note. Depending on market version, the plenum chamber electronics box may be equipped with a fan motor.
Removing
- Remove the electronics box (plenum chamber) --> «Electronics box in plenum chamber, removing and installing»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__electronics-box-in-plenum-chamber-removing) .
Scheme 397
- Remove screws - 4 - and remove fan - 2 - with air cowl - 3 - from electronics box in plenum chamber - 1 -.
Installing
Install in reverse order of removal.
Tightening torque
| Component | Nm |
|---|---|
| Fan to plenum chamber electronics box | 3 |
4-way relay carrier in electronics box in plenum chamber, removing and installing
Removing
| CAUTION | Switch off all electrical consumers. Switch ignition off and remove ignition key. |
- Remove rubber seal of plenum chamber cover in direction of - arrow -.
- Remove plenum chamber cover - 1 - to front.
- Use screwdriver to pry off the two caps - 3 -.
- Loosen nuts - 4 - (do not remove).
- Remove wiper arms - 2 - from wiper shaft by tilting slightly.
- Remove nuts completely and remove wiper arms.
- Pull off retaining clips - 1 - and detach cowl panel grille - 5 -.
- Remove cover for electronics box in plenum chamber - arrows -.
- Use screwdriver to pry off retaining strap - arrows -.
- Lay aside engine control module with wires attached.
- Where applicable, release the retaining clip for the transmission control module.
- Lay aside transmission control module with wires attached.
- Release retaining clips - arrows - and lift auxiliary relay carrier out of electronics box.
- Unclip the fuse carriers at the 4-position relay carrier.
- Remove relays and control modules and then unclip appropriate relay carrier.
Scheme 398
Note. Refer to the applicable wiring diagram for exact identification of connections on electronics box Wiring Diagrams.
Installing
Install in reverse order of removal.
Connector junction, electronics box in plenum chamber, removing and installing
Removing
- Disconnect battery. Audi A4 S4 --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) . Audi RS4 --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Where applicable, remove drivers storage compartment --> «68 - INTERIOR EQUIPMENT»(/audi/a4/b7-2004-2009/remont/gauges-instrument-panels/#body-interior) .
- Remove electrical wire at bottom of connector point in plenum chamber electronics box.
- Remove rubber seal of plenum chamber cover in direction of - arrow -.
- Remove plenum chamber cover - 1 - to front.
- Use screwdriver to pry off the two caps - 3 -.
- Loosen nuts - 4 - (no not remove).
- Remove wiper arms - 2 - from wiper shaft by tilting slightly.
- Remove nuts completely and remove wiper arms.
- Pull off retaining clips - 1 - and detach cowl panel grille - 5 -.
- Remove cover for electronics box in plenum chamber - arrows -.
- Use screwdriver to pry off retaining strap - arrows -.
- Lay aside engine control module with wires attached.
- Release retaining clip for transmission control module.
- Lay aside transmission control module with wires attached.
- Disconnect electrical connections at rear of connector console.
Vehicles through 10.04
Scheme 399
- Remove electrical wire - 2 -.
- Remove screws - 1 - and - 3 -.
- Unclip appropriate socket.
Scheme 400
Note. Refer to the applicable wiring diagram for exact identification of connections on connector station Wiring Diagrams.
Vehicles from 11.04
Scheme 401
- Remove electrical wire - 3 -.
- Remove screws - 2 - and - 4 -.
- Unclip appropriate socket - 1 -.
Scheme 402
Note. Refer to the applicable wiring diagram for exact identification of connections on connector station Wiring Diagrams.
Installing
Install in reverse order of removal, noting the following
- Reconnect battery. Required steps Audi A4 S4 «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) . Required steps Audi RS4 «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
Tightening torques
| Component | Nm |
|---|---|
| Connector point in plenum chamber electronics box to central tube for instrument panel | 3 |
| Bolt connection for electrical wires | 9 |
Main fuse panel - vehicles with battery in engine compartment, removing and installing
Removing
- Disconnect battery --> «Battery in engine compartment, disconnecting and reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-engine-compartment-disconnecting-and) .
- Remove rubber seal of plenum chamber cover in direction of - arrow -.
- Remove plenum chamber cover - 1 - to front.
Scheme 403
- Fold cover - 2 - aside and remove nut - 3 - at terminal.
- Remove nut - 1 - for fuse (positive terminal).
Installing
Install in reverse order of removal, noting the following
- Reconnect battery. Required steps Audi A4 S4 «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) . Required steps Audi RS4 «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
Tightening torques
| Component - fastener | Nm |
|---|---|
| Fuse panel to positive terminal - nut | 6 |
| Fuse to fuse panel terminal - nut | 6 |
Positive terminal in plenum chamber - Audi RS4, removing and installing
Removing
- Disconnect battery --> «Battery in luggage compartment, disconnecting and connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__battery-in-luggage-compartment-disconnecting-and) .
- Remove plenum chamber cover rubber seal in direction of - arrow -.
- Remove plenum chamber cover - 1 - forward.
Scheme 404
- Remove screw - 1 -.
- Release retaining clip - 2 - in direction of - arrow A -.
- Remove positive terminal in direction of - arrow B - from bracket.
Scheme 405
- Release retaining clip - arrow A - and open cover - 2 - over positive terminal.
- Release wiring cover - 1 - in direction of - arrow B -.
Scheme 406
- Remove terminal nuts - 1 - and - 4 - and remove cables.
- Remove positive terminal.
Installing
Install in reverse order of removal, noting the following
- Connect battery. Required steps «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
Tightening torques
| Component | Nm |
|---|---|
| Positive cables to positive terminal grip | 15 |
| Positive terminal grip to bracket | 9 |
| CAUTION | Before beginning repairs on the electrical system: Where applicable, obtain anti-theft radio security code. Switch off all electrical consumers. Switch the ignition off and remove ignition key. Disconnect negative ( - ) battery terminal. On vehicles equipped with Audi Telematics by OnStar (R) , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery --> 91 - COMMUNICATION After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owners Manual. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar (R) , switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module --> 91 - COMMUNICATION |
Special tools, testers and auxiliary items required
Scheme 407
- Wiring harness repair set VAS 1978
Scheme 408
Note. Wiring harness and connector repairs on the vehicle electrical system are only to be performed using wiring harness repair set VAS 1978. An instruction manual is included in the wiring harness repair set VAS 1978 , in which the procedure for repairs is described in detail.
Safety precautions for repairing wiring harnesses and connectors
| CAUTION | Wiring harness and connector repairs on the vehicle electrical system are only to be performed using wiring harness repair set VAS 1978. Pay attention to the relevant regulations in the individual countries. Disconnecting the battery negative ( - ) terminal prevents accidents when working on electrical system. Disconnect battery. Audi A4 S4 --> Battery in engine compartment, disconnecting and reconnecting . Audi RS4 --> Battery in luggage compartment, disconnecting and connecting . Heed stickers on vehicle pointing out components with high voltage. Remaining voltage must be dissipated before commencing repair work. Before commencing repair work, always eliminate cause of damage, e.g. sharp body edges, malfunctioning electrical components, corrosion etc. Do not loosen ground straps on body if this can be avoided (danger of corrosion). Further information, for example about removal and installation of individual components, can be found in the appropriate Workshop Manual. |
Notes on repairs on wiring harnesses and connectors
| CAUTION | Do not solder components of the vehicle electrical system. Do not perform repairs on heat-shrink sleeves. Route a new wire along the faulty wire if necessary. Shielded wires, e.g. on speed sensor and knock sensors, are NOT to be repaired. These wires must be replaced complete if damaged. Only use yellow wires for repairs to wiring. Mark location of repair with yellow insulating tape. Yellow wiring and locations with yellow insulating tape on wiring harness designate a previous repair. |
Notes on repairs to airbag and safety belt tensioner wiring harness
| CAUTION | To maintain the repair standards required by the factory, repairs on airbag and belt tensioner wiring harness may only be performed on in-vehicle wiring using wiring harness repair set VAS 1978 and genuine spare parts (connector housings, contacts, wiring). Wires on the individual airbag modules are NOT to be repaired. If wires or connectors at airbag modules are damaged, the corresponding airbag modules must be replaced for safety reasons. Repair operations must be recorded in the Audi Service Schedule under "Workshop entries" with a brief outline of the repair work completed, company stamp and signature. Any warranty claims are invalid if airbag wiring harness repairs have not been performed using genuine spare parts and wiring harness repair set VAS 1978. |
Scheme 409
- Use an unshielded two-wire line - 1 - and - 2 - (cross-section 0.35 mm 2 or 0.5 mm 2 ) as CAN-Bus bus wire.
- color coding of CAN-Bus bus wires
| Drive CAN-Bus High | Orange/black |
|---|---|
| Convenience CAN-Bus High | Orange/green |
| Infotainment CAN-Bus High | Orange/violet |
| CAN-Bus Low (all) | Orange/brown |
- Only use yellow wires for repairs to wiring. Mark location of repair with yellow insulating tape.
- Both bus wires must be of the same length when repairing. When twisting the wires - 1 - and - 2 - , length of twist - A - = 20 mm must be attained.
- When making repairs, there must be no untwisted section of wire which is longer than - B - = 50 mm, e.g. in the vicinity of heat-shrink sleeves - arrow -.
Repairing a wire with cross-section 0.22 mm 2 or 0.35 mm 2
Procedure
Note. Wiring harness repair set VAS 1978 contains repair wires of three different cross-sections (0.5 mm 2 , 1.5 mm 2 , 4.0 mm 2 ) and the corresponding crimp connectors. 0.5 mm 2 repair wire must be used for repairing 0.35 mm 2 wire.
Perform the repair as follows
Scheme 410
- Strip the ends of the 0.22 mm 2 and 0.35 mm 2 wires to a length of 12... 14 mm using the stripping pliers VAS 1978/3.
- Fold back half of the stripped wire ends.
- Strip the ends of the 0.5 mm 2 repair wire to a length of 6 to 7 mm using the stripping pliers VAS 1978/3.
Scheme 411
- Slip crimp connector over ends of wires and crimp on both sides using crimping tool VAS 1978/1.
Note. Be sure to select the correct red crimp insert VAS 1978/24 for 0.5 mm 2 wires. Do NOT crimp the insulation on the wires.
Scheme 412
- After crimping, you must shrink-fit the crimp connector using the hot-air blower, 220 V/ 50 Hz VAS 1978/14 and hot-air blower shrink fitting VAS 1978/15.
- Crimp connector must be heated working outwards from center until it is completely sealed and adhesive emerges.
- Set the hot air blower to the correct temperature; refer to operating manual for VAS 1978.
- When shrink-fitting, ensure no other wires, plastic components or insulating materials are damaged by the hot nozzle.
- If repair wire was previously wrapped, yellow insulating tape must again be wound around this point; reattach wire with a cable tie if necessary.
- Reconnect battery. Required steps Audi A4 S4 «Reconnecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__reconnecting) . Required steps Audi RS4 «Connecting»(/audi/a4/b7-2004-2009/remont/cruise-control-systems/#electrical-equipment__connecting) .
Antenna cables, replacing
A new repair concept has been developed for repairing antenna cables. Instead of a complete antenna cable, connecting wires of different lengths and various adapter leads are now available as replacement parts.
Spare part numbers.
Note. Antenna cables are NOT to be repaired, rather replaced using connecting cables and adapter leads available as genuine replacement parts. These genuine replacement parts are suitable for all cable cross-sections and antenna cables which have to be replaced. Replacing of individual antenna connectors during repair work is not intended. The cables are now to be used retrospectively for all Audi models and for all antenna cable-cross sections fitted. All adapter leads and connecting cables are suitable for all transmission and reception signals. The repair concept can also be used for testing and service installation purposes (e.g. retrofitting).
Antenna connector cable, replacing
Example
Scheme 413
Faulty antenna cable from radio to antenna
The following are required for repair purposes
- Adapter wire for connection to radio; length approx. 30 cm
- Connecting wire; available in various lengths
- Adapter wire for connection to antenna; length approx. 30 cm
- Disconnect electrical connections of faulty antenna cable from devices.
- Determine routing of faulty antenna cable in vehicle and measure out overall length of antenna connection to be replaced in vehicle.
Total length of antenna connection = length of adapter leads - 1 - and - 3 - required as well as connecting wire - 2 -.
- Subtract 60 cm from total length of antenna connection measured to calculate required length of connecting wire needed.
- Procure the necessary adapter leads and connecting wire in the calculated length as genuine replacement parts.
- Cut connectors off faulty antenna cable.
- Leave remains of faulty antenna cable in vehicle.
- Connect adapter leads to units in vehicle.
- Fit connectors with a piece of foam sheathing to prevent rattling noise.
- Lay and secure connecting wire parallel to old antenna cable.
| CAUTION | Antenna cable must not be kinked or bent excessively during installation. Do not attempt to bend antenna cable in a radius smaller than 50mm. |
- Attach connecting wire to adapter leads.
- To prevent rattling noise, apply a suitable piece of foam sheathing to antenna connectors.
- Check operation.
See also:
• 91 - COMMUNICATION
• 24 - MULTIPORT FUEL INJECTION (MFI)
• 24 - FUEL INJECTION SYSTEM
• 69 - PASSENGER PROTECTION - AIRBAGS, SEAT BELTS
• 19 - ENGINE - COOLING SYSTEM
• 19 - ENGINE - COOLING SYSTEM
• 63 BUMPER
• 48 - STEERING
• 00 - TECHNICAL DATA
• 87 AIR CONDITIONING
• Warnings and safety measures for lead-acid batteries
• Eye protection and protective clothing
• Batteries with central gas venting
• Battery installation, checking
• Battery with charge indicator (magic eye), checking
• Battery in engine compartment, disconnecting and reconnecting
• Battery in luggage compartment, disconnecting and connecting
• Battery, charging
• Reconnecting
• Connecting
• Electrolyte level - batteries with sealing plugs, checking
• Smoking, naked flames, fires and sparks
• No-load voltage, checking
• Battery in engine compartment, removing and installing
• Generator (GEN) - 3.0L 6-cylinder engine, removing and installing
• Installing
• Instrument cluster, removing and installing
• On Board Diagnostic (OBD), function
• Windshield wiper blade park position, adjusting
• Windshield wiper blade mount - through 10.04, removing and installing
• Rear window washer spray jet, removing and installing
• Rear window washer spray jet, adjusting
• Rear window wiper arm, removing and installing
• Rear window wiper blade, replacing
• Rear window wiper motor, removing and installing
• Washer fluid reservoir - Audi A4 S4, removing and installing
• Washer fluid reservoir - Audi RS4, removing and installing
• Turn signal/parking lamp bulb, replacing
• Low Beam Headlamp M29 / M31 - bulb, replacing
• High Beam Headlamp M30 / M32 - bulb, replacing
• Headlamps, removing and installing
• Parking Lamp M1 / M3 - bulb, replacing
• Front Turn Signal Lamp M5 / M7 - bulb, replacing
• High Intensity Gas Discharge (HID) Lamp Control Module J343 / J344 - through approx. 09.01, removing and installing
• HID low beam headlamp bulb - through approx. 09.01, replacing
• Headlamp Beam Adjustment Motor V48 / V49, removing and installing
• HID headlamp bulb, disposal
• HID low beam headlamp bulb, replacing
• Adapter cable for HID headlamp bulb control module, removing and installing
• High Beam Headlamp bulb M30 / M32, replacing
• Daytime Running Lamp (DRL) bulb, replacing
• HID headlamp bulb, replacing
• Fog lamp housing, removing and installing
• Fog lamp housing - Audi A4 with "S-line" equipment Audi S4, removing and installing
• Fog lamp housing - Audi RS4, removing and installing
• Rear light/bulb carrier in rear fender - Sedan, removing and installing
• Rear light/bulb carrier in rear lid - Sedan, removing and installing
• Taillamp/rear fog lamp bulb, replacing
• Taillamp/rear fog lamp bulb, removing and installing
• Spiral spring, removing and installing
• Steering Angle Sensor G85 , removing and installing
• Cruise Control Switch E45 , removing and installing
• Turn Signal Switch E2 , removing and installing
• Steering Column Electronics Systems Control Module J527 , removing and installing
• Windshield Wiper/Washer Switch E22 , removing and installing
• Steering column switch module, removing and installing
• Reader coil, replacing
• Rear Parking Aid Warning Buzzer H15 - Sedan, removing and installing
• Parking Aid Control Module J446 , removing and installing
• Headlamp Range Control Module J431 , removing and installing
• Light Switch E1 , removing and installing
• Front interior lamp module, removing and installing
• Lock cylinder, removing and installing
• Rear interior lamp module, removing and installing
• Rear heated seat regulating switches, removing and installing
• Rear/Center Central Locking Switch E286 , removing and installing
• Electronics box in plenum chamber, removing and installing