Home/Audi/Q5/Audi Q5 I (2008-2012)/Repair manual/Charging System/Battery, Starter, Generator, Cruise Control
Contents Wiring diagrams Section: Charging System All sections

Battery, Starter, Generator, Cruise Control Audi Q5 I

Charging System 56 illustrations ~5558 words

CONTACT CORROSION

Contact corrosion can occur if incorrect fasteners (bolts, nuts, washers, etc.) are used.

For this reason, only fasteners with a special surface coating are used.

In addition, rubber or plastic parts and adhesive consist of non-conductive materials.

If there are doubts as to whether parts are suitable or not, use new parts.

Note. We only recommend original replacement parts as they have been tested and are compatible with aluminum. We recommend using genuine Audi accessories. Damage resulting from contact corrosion is not covered by warranty.

The following descriptions can be found in Generator, Checking

  1. Battery post/terminal
  2. Battery with visual indicator
  3. Battery with visual indicator, checking
  4. Battery with visual indicator, checking the color display (battery electrolyte level)
  5. Battery with visual indicator, electrolyte level checking
  6. Battery with visual indicator, visual checking
  7. Central venting system
  8. Lead-acid battery warnings and safety precautions
  9. Safety procedures and precautions

BATTERY INTERRUPT IGNITER -N253

Replace the battery interrupt igniter -N253- if it is faulty or has deployed. Refer to Removal and Installation .

BATTERY, WITH HIGH VOLTAGE SYSTEM

  1. Observe notes on contact corrosion. Refer to «CONTACT CORROSION»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__contact-corrosion) .
  2. Read and follow the High Voltage Electrical System General Warnings. .

MAINTENANCE-FREE BATTERY

The following descriptions can be found in Battery, Starter, Generator, Cruise Control

  1. Battery with visual indicator
  2. Battery with visual indicator, checking
  3. Central venting system
  4. Battery Post/Terminal
  5. Visual check of the battery
  6. Check the color display (battery electrolyte level), battery with "visual indicator"
  7. Battery electrolyte level, checking

Scheme 37

Scheme 37: BATTERY OVERVIEW
  1. Battery In the luggage compartment of the spare wheel well Removing and installing, refer to «BATTERY»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-engine-codes-caeb-calb)
  2. Negative Terminal Cover Varies by equipment level Allocation
  3. Positive Terminal Cover
  4. Nut 5 Nm
  5. Electrical Wire For the relay/fuse panel, under the instrument panel on the left side Tightening specification, refer to «ENGINE COMPARTMENT E-BOX, WIRE JUNCTION, FUSE HOLDER AND BATTERY OVERVIEW Tightening Specifications for the Fuse Panel A»(/audi/q5/i-2008-2012/remont/wiring-system-data-link-connectors-pwr-dist-grnd-dist/#wiring)
  6. Fuse Panel A -SA- Disconnecting and connecting, refer to «BATTERY»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-engine-codes-caeb-calb) Removing and installing, refer to «FUSE PANEL A IN LUGGAGE COMPARTMENT»(/audi/q5/i-2008-2012/remont/wiring-system-data-link-connectors-pwr-dist-grnd-dist/#wiring__fuse-panel-a-in-luggage-compartment)
  7. Nut Tightening specification, refer to «ENGINE COMPARTMENT E-BOX, WIRE JUNCTION, FUSE HOLDER AND BATTERY OVERVIEW Tightening Specifications for the Fuse Panel A»(/audi/q5/i-2008-2012/remont/wiring-system-data-link-connectors-pwr-dist-grnd-dist/#wiring)
  8. Positive Cable to the Engine
  9. Screw
  10. Nut 5 Nm
  11. Electrical Wire For the battery monitoring control module -J367- Follow the sequence when connecting the ground cable. Refer to «BATTERY, DISCONNECTING AND CONNECTING»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-disconnecting-and-connecting)
  12. Ground Wire with Battery Monitoring Control Module -J367- Disconnecting and connecting, refer to «BATTERY, DISCONNECTING AND CONNECTING»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-disconnecting-and-connecting) Removing and installing, refer to «BATTERY MONITORING CONTROL MODULE»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-monitoring-control-module)
  13. Screw
  14. Nut 18 Nm
  15. Central Venting System Hose
  16. Screw Quantity: 2 18 Nm
  17. Retaining Bracket

BATTERY, PREPARING FOR CHARGING

Procedure

WARNINGRisk of explosion of a discharged battery with visual indicator. If the visual indicator has no color or is light yellow, the battery may not be tested or charged. Jump starting must not be used! There is a risk of explosion during testing, charging or jump starting. The battery must be replaced.

Before the battery charger can be connected, the following preparations are necessary

Note. It is recommended that the battery is charged when installed and connected. This is the only way to ensure the charging current is incorporated into the capacity calculation for the battery monitoring control module -J367-.

Switch off ignition, switch off all electrical consumers and remove ignition key.

Remove the cover -2- while pressing on -arrow A-.

Scheme 38

Scheme 38

Release the tab -arrow B- and open the cover -1-.

Connect the battery charger red charging clamp "+" to the positive terminal clamp -1- and the black charging clamp "-" to the negative "-" terminal clamp -2-.

Scheme 39

Scheme 39

Connect the battery charger electrical system connector and switch the charger on Generator, Checking .

Keep the rear lid open while charging.

BATTERY, PREPARING FOR SUPPORT MODE

Procedure

Remove the cover -2- while pressing on -arrow A-.

Release the tab -arrow B- and open the cover -1-.

Connect the battery charger red charging clamp "+" to the positive terminal clamp -1- and the black charging clamp "-" to the negative "-" terminal clamp -2-.

Connect the battery charger electrical system connector and switch the charger on Generator, Checking .

BATTERY AND AUXILIARY BATTERY OVERVIEW

Battery -A

Scheme 40

Scheme 40: BATTERY AND AUXILIARY BATTERY OVERVIEW
  1. Battery -A- In the luggage compartment in the spare wheel well Removing and installing, refer to «BATTERY»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-engine-codes-chja)
  2. Positive Terminal Cover
  3. Negative Terminal Cover Equipment level Allocation
  4. Screw
  5. Nut 5 Nm
  6. Fuse Panel A -SA- Disconnecting and connecting, refer to «BATTERY»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-engine-codes-chja) Removing and installing, refer to «FUSE PANEL A IN LUGGAGE COMPARTMENT, VEHICLES WITH HIGH VOLTAGE SYSTEM»(/audi/q5/i-2008-2012/remont/wiring-system-data-link-connectors-pwr-dist-grnd-dist/#wiring__fuse-panel-a-in-luggage-compartment)
  7. Electrical Wire For the relay/fuse panel, under the instrument panel on the left side Tightening specification, refer to «FUSE PANEL A IN LUGGAGE COMPARTMENT, VEHICLES WITH HIGH VOLTAGE SYSTEM»(/audi/q5/i-2008-2012/remont/wiring-system-data-link-connectors-pwr-dist-grnd-dist/#wiring__fuse-panel-a-in-luggage-compartment)
  8. Screw 3.5 Nm
  9. Electrical Wire
  10. Nut Tightening specification, refer to «FUSE PANEL A IN LUGGAGE COMPARTMENT, VEHICLES WITH HIGH VOLTAGE SYSTEM»(/audi/q5/i-2008-2012/remont/wiring-system-data-link-connectors-pwr-dist-grnd-dist/#wiring__fuse-panel-a-in-luggage-compartment)
  11. Positive Cable to the Engine
  12. Nut 5 Nm
  13. Electrical Wire For the battery monitoring control module -J367- Follow the sequence when connecting the ground cable. Refer to «BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-and-auxiliary-battery-disconnecting-and)
  14. Ground Wire with Battery Monitoring Control Module -J367- Disconnecting and connecting, refer to «BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-and-auxiliary-battery-disconnecting-and) Removing and installing, refer to «BATTERY MONITORING CONTROL MODULE -J367- FOR BATTERY»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-monitoring-control-module-j367-for)
  15. Nut 20 Nm
  16. Screw
  17. Central Venting System Hose
  18. Screw 18 Nm Quantity: 2
  19. Retaining Bracket

Auxiliary Battery -A1

Scheme 41

Scheme 41
  1. Central Venting System Hose
  2. Screw 9 Nm
  3. Battery Bracket
  4. Ground Wire with Battery Monitoring Control Module 2 -J934- Removing and installing, refer to «BATTERY MONITORING CONTROL MODULE -J367- FOR BATTERY»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-monitoring-control-module-j367-for)
  5. Nut 20 Nm
  6. Screw
  7. Nut 5 Nm
  8. Electrical Wire for the Battery Monitoring Control Module 2 -J934
  9. Screw 4.5 Nm
  10. Negative Pole
  11. Screw 4.5 Nm
  12. Positive Cable
  13. Electrical Wire
  14. Auxiliary Battery -A1- Removing and installing
  15. Screw 9 Nm
  16. Battery Bracket

Scheme 42

Scheme 42: GENERATOR WITH BUSHINGS OVERVIEW
  1. Bolts 23 Nm
  2. Generator Removing and installing: Vehicles with 2.0L TFSI engine, refer to «GENERATOR»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__generator-engine-codes-caeb-chja) Vehicles with 3.2L FSI engine, refer to «GENERATOR»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__generator-engine-codes-calb)
  3. Bushing During removal this bushing may come out. During reinstallation ensure that the bushing is fully seated against the bracket before final torque is achieved.
  4. Electrical Connector
  5. Nut 16 Nm
  6. Cap
  7. Terminal 30/B+

Scheme 43

Scheme 43: GENERATOR WITHOUT BUSHINGS OVERVIEW
  1. Screw 23 Nm Quantity: 2
  2. Generator Removing and installing: Vehicles with 2.0L TFSI engine, refer to «GENERATOR»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__generator-engine-codes-caeb-chja) Vehicles with 3.2L FSI engine, refer to «GENERATOR»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__generator-engine-codes-calb)
  3. Electrical Connector
  4. Terminal 30/B+
  5. Cap
  6. Nut 16 Nm

GENERATOR, SERVICING

Observe notes on contact corrosion, refer to CONTACT CORROSION .

The following descriptions can be found in Generator, Checking

  1. Bosch generator from 2007, assembly overview
  2. Bosch generators from 2001, carbon brushes, checking
  3. Bosch generator from 2007, voltage regulator, removing and installing
  4. Valeo generator from 2001, assembly overview
  5. Valeo generator from 2007, carbon brushes, checking
  6. Valeo generator from 2007, voltage regulator, removing and installing
  7. Ribbed belt pulley with freewheel, removing and installing
  8. Ribbed belt pulley without freewheel, removing and Installing

STARTER OVERVIEW

Observe notes on contact corrosion, refer to CONTACT CORROSION .

Scheme 44

Scheme 44: STARTER OVERVIEW
  1. Screw Tightening specification, refer to «Description and Operation»(ref-515388-S32919833812012120300000)
  2. Spacer Sleeve Only on 4-cylinder engines
  3. Starter Removal and installation, refer to «STARTER»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__starter-engine-codes-calb) .
  4. Terminal 30/B+
  5. Nut 15 Nm
  6. Electrical Connector
  7. Screw Tightening specification, refer to «Description and Operation»(ref-515388-S32919833812012120300000)

FASTENER TIGHTENING SPECIFICATIONS

ComponentBolt SizeNm
Auxiliary Battery Bracket Screws9
Battery Retaining Bracket Screw18
Fuse Panel A Nut5
Generator Screws/Bolts23
Ground Wire with Battery Monitoring Control Module Nut5
Ground Wire with Battery Monitoring Control Module to Screw for Battery Terminal Nut5
Negative Pole to Auxiliary Battery Screw4.5
Ground Wire with Battery Monitoring Control Module 2 Nut18
Terminal 30/B+ to Generator Nut16
Terminal 30/B+ to Starter Nut15

Procedure

WARNINGRisk of explosion of a discharged battery with visual indicator. If the visual indicator has no color or is light yellow, the battery may not be tested or charged. Jump starting must not be used! There is a risk of explosion during testing, charging or jump starting. The battery must be replaced.

Before the battery charger can be connected, the following preparations are necessary

Note. It is recommended that the battery is charged when installed and connected. This is the only way to ensure the charging current is incorporated into the capacity calculation for the battery monitoring control module -J367-.

Switch off ignition

Switch off all electrical consumers and remove ignition key.

Remove the cover -2- while pressing on -arrow A-.

Release the tab -arrow B- and open the cover -1-.

Connect the battery charger red charging clamp "+" to the positive terminal clamp -1- and the black charging clamp "-" to the negative "-" terminal clamp -2-.

Connect the battery charger electrical system connector and switch the charger on. Refer to Generator, Checking .

Keep the rear lid open while charging.

Procedure

Remove the cover -2- while pressing on -arrow A-.

Release the tab -arrow B- and open the cover -1-.

Connect the battery charger red charging "+" clamp to the positive terminal clamp -1- and the black charging "-" clamp to the negative "-" terminal clamp -2-.

Connect the battery charger electrical system connector and switch the charger on. Refer to Generator, Checking .

AUXILIARY BATTERY -A1-, PREPARING FOR CHARGING

Remove the luggage compartment left side trim panel cover.

Connect the red charging clamp "+" for the battery charger to the positive pole for the auxiliary battery -A1- -2- and connect the black charging clamp "-" to the nut -1- for the ground cable.

Scheme 45

Scheme 45: AUXILIARY BATTERY -A1-, PREPARING FOR CHARGING

Connect the battery charger electrical system connector and switch the charger on Generator, Checking .

BATTERY, TESTING

The following descriptions can be found in Diagnosis and Testing

  1. Battery check using Vehicle Diagnostic Tester systems
  2. Measure the no load voltage - vehicles with battery monitoring control module -J367- or energy management control module -J644

BATTERY, CHARGING

The following descriptions can be found in Generator, Checking

  1. Charge battery using Battery Charger VAS 5903 or Midtronics INC-940.
  2. Exhaustively discharged battery
  3. Battery support mode with Battery Charger VAS 5903 or Midtronics INC-940.

GENERATOR, TESTING

The generator is tested in "Guided Fault Finding" under "Body/Electrical Equipment/26 - Starter, voltage supply/electrical components/C generator, testing," using the Vehicle Diagnostic Tester. Refer to vehicle diagnosis, testing and information system.

BATTERY - ENGINE CODE(S): CAEB, CALB, CGXD & CPMA

WARNINGPollution risk. Battery disposal regulations must be followed when disposing of batteries. Refer to Generator, Checking .

Scheme 46

Scheme 46: REMOVING

Switch off ignition and remove ignition key.

Remove the luggage compartment floor -3-.

Remove the dirt tray, if applicable.

Remove the bass box -2- if applicable. Refer to Removal and Installation .

Fold back the carpet -1- over the flap.

Remove the battery cover. Refer to Removal and Installation .

Connect the battery charger for battery support mode. Refer to General Information .

Remove the vehicle tools, if applicable, -2- and the bracket.

Scheme 47

Scheme 47

Open the cover -7- over the battery negative "-" terminal.

Loosen nut -6- a few turns and remove the battery ground (GND) cable clamp from battery terminal.

Disconnect the central gas vent hose -8-.

Remove the bolts -arrows- on the battery mounting bracket -1-.

Remove the battery -5- slightly from the battery mount.

Open the cover -4- over the battery positive terminal.

Loosen the nut -3- several turns and remove the positive cable clamp with fuse panel A -SA- from the battery terminal.

Remove battery from luggage compartment.

INSTALLING

  1. Tightening specification, refer to «BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control) .

Note. Only maintenance-free batteries conforming to standards TL 82506 (as of December 1997) and VW 75073 (as of August 2001) may be installed. Batteries from the Audi Parts Program have a bottom strip-adapter for adapting to different grip channels. For information on how to use the base strip adapter, if applicable, see the battery operating instructions.

Insert the battery in the battery mount so the base strip engages in the battery mount retaining strip -arrow-.

Scheme 48

Scheme 48
  1. It should no longer be possible to move the battery.

Position battery bracket -1-.

  1. Lug at battery bracket must engage in recess at battery base strip.

Tighten the battery bracket screws -arrows-.

Connect central venting system hose -8- while observing notes. Refer to Generator, Checking .

With the ignition and electrical consumers switched off, connect the battery -5- in the following sequence

Connect positive cable terminal clamp -3- by hand to battery positive terminal "+" and tighten nut.

Disconnect the connector -3- on the battery monitoring control module -J367- -1-.

Scheme 49

Scheme 49

Connect the battery ground (GND) cable clamp by hand to battery negative "-" terminal and tighten the nut -1-.

Connect the electrical connector on the battery monitoring control module -J367-.

Check battery after installation for secure seating. Refer to General Information .

Install the battery cover. Refer to Removal and Installation .

After replacing, adapt the battery in the Guided Fault Finding or Guided Functions mode using the Vehicle Diagnostic Tester

Continue following the instructions on the vehicle diagnostic tester display in the case of a new battery.

When the battery is connected, the following steps must be performed

  1. Activate the power window regulator one-touch up/down function.
  2. Check DTC memories of all control modules and erase the "undervoltage" DTC, if necessary, using the Vehicle Diagnostic Tester.

Note. After connecting the power supply, the ABS warning lamp may only go out after the vehicle has been driven a few yards.

BATTERY, DISCONNECTING AND CONNECTING

CAUTIONAccident risk. When working on pyrotechnic components (such as airbags and belt tensioners), the battery must be disconnected with the ignition switched on. Refer to Removal and Installation .

Disconnecting

Switch off ignition and remove ignition key.

Remove the luggage compartment floor -3-.

Remove the dirt tray, if applicable.

Remove the bass box -2- if applicable. Refer to Removal and Installation .

Fold back the carpet -1- over the flap.

Unlock the retaining tabs -arrows- and open the cover -1-.

Scheme 50

Scheme 50

Open the cover -1- over the battery negative "-" terminal.

Scheme 51

Scheme 51

Loosen the nut on the clamp several turns and remove the ground cable -arrow- from the battery terminal.

Connecting

  1. Tightening specification, refer to «BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control) .

Disconnect the connector -3- on the battery monitoring control module -J367- -1-.

Connect the ground wire terminal clamp, by hand, to battery negative - terminal and tighten the nut -1-.

Connect the electrical connector on the battery monitoring control module -J367-.

When the battery is connected, the following steps must be performed

  1. Activate the power window regulator one-touch up/down function.
  2. Check DTC memories of all control modules and erase the "undervoltage" DTC if necessary, using the Vehicle Diagnostic Tester.

Note. After connecting the power supply, the ABS warning lamp may only go out after the vehicle has been driven a few yards.

Install the bass box, if applicable. Refer to Removal and Installation .

BATTERY MONITORING CONTROL MODULE

Removing

Switch off ignition and remove ignition key.

Remove the luggage compartment floor -3-.

Remove the dirt tray, if applicable.

Remove the bass box -2- if applicable. Refer to Removal and Installation .

Fold back the carpet -1- over the flap.

Unlock the retaining tabs -arrows- and open the cover -1-.

Remove the vehicle tools, if applicable.

Open the cover -2- over the battery negative "-" terminal.

Scheme 52

Scheme 52

Loosen the nut several turns and remove the battery ground (GND) cable -3- from the battery terminal.

Disconnect the electrical connector -4-.

Remove nut -1- and ground cable -6- with the battery monitoring control module -J367- -5-.

Installing

  1. Tightening specification. Refer to «BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control) .

Install in reverse order of removal, observing the following

Install the bass box, if applicable. Refer to Removal and Installation .

BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

WARNINGAlways disconnect the battery -A- and the auxiliary battery -A1- at the same time when working near the 12 volt system.

Disconnecting

CAUTIONDamaged high voltage components may produce dangerously high voltage. Observe the following when working near or around high voltage components and cables: Do not use tools that have sharp edges, that are used for cutting or shaping, or that generate heat, such as welding, soldering, hot air or thermal adhesive equipment. Inspect the high voltage components in the area where the work will be performed before starting the procedure. Perform a visual inspection of the electric drive power and control electronics -JX1-, electro-drive drive motor -V141-, the electrical A/C Compressor -V470- and the high voltage cables when working in the engine compartment. Perform a visual inspection of the high voltage cables and the covers when working on the floor panel. Perform a visual inspection of the high voltage cables and the electro-box with the high voltage system maintenance connector -TW - when working in the rear of the vehicle. Perform a visual inspection of all of the potential equalization cables. Note the following when performing the visual inspection: None of the components may display any exterior damage. The high voltage cable insulation and the potential equalization cables may not be damaged. The high voltage cables may not be deformed in any way. Each high voltage component muss be labeled with a red warning label.

Remove the luggage compartment floor panel. Refer to Interior Trim .

Remove the nut -1- from the ground point, remove the ground wire -2-.

Scheme 53

Scheme 53
CAUTIONImmediately wrap the connection for the ground wire with insulating tape and set it aside.

Remove the luggage compartment left side trim panel cover.

Scheme 54

Scheme 54

Loosen the nut -5- a few turns and disconnect the ground cable from the battery negative pole -2-.

CAUTIONImmediately wrap the battery ground cable terminal with insulating tape and set it aside.

Note. Ignore -1, 3 and 4-.

Connecting

  1. Tightening specification, refer to «BATTERY AND AUXILIARY BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-and-auxiliary-battery-overview) .

Attach the battery ground (GND) cable terminal -2- by hand to the battery negative pole "-" when attaching the auxiliary battery -A1-, and then tighten the nut -5-.

Tighten the ground cable -1- to the ground point.

When the batteries are connected, the following steps must be performed

  1. Activate the power window regulator one-touch up/down function. Refer to the owner's manual.
  2. Check DTC memories of all control modules and erase "undervoltage" DTC if necessary using the Vehicle Diagnostic Tester.

Note. After connecting the power supply, the ABS warning lamp may only go out after the vehicle has been driven a few yards.

BATTERY MONITORING CONTROL MODULE -J367- FOR BATTERY

Removing

CAUTIONDamaged high voltage components may produce dangerously high voltage. Observe the following when working near or around high voltage components and cables: Do not use tools that have sharp edges, that are used for cutting or shaping, or that generate heat, such as welding, soldering, hot air or thermal adhesive equipment. Inspect the high voltage components in the area where the work will be performed before starting the procedure. Perform a visual inspection of the electric drive power and control electronics -JX1-, electro-drive drive motor -V141-, the electrical A/C Compressor -V470- and the high voltage cables when working in the engine compartment. Perform a visual inspection of the high voltage cables and the covers when working on the floor panel. Perform a visual inspection of the high voltage cables and the electro-box with the high voltage system maintenance connector -TW - when working in the rear of the vehicle. Perform a visual inspection of all of the potential equalization cables. Note the following when performing the visual inspection: None of the components may display any exterior damage. The high voltage cable insulation and the potential equalization cables may not be damaged. The high voltage cables may not be deformed in any way. Each high voltage component muss be labeled with a red warning label.

Remove the luggage compartment floor panel. Refer to Removal and Installation .

Remove the air guide inlet for the traction battery. Refer to Removal and Installation .

Open the cover -1- over the battery negative "-" terminal.

Scheme 55

Scheme 55

Loosen the nut several turns and remove the ground cable -2- from the battery terminal.

Disconnect the electrical connector -3-.

Remove nut -6- and ground cable -5- with the battery monitoring control module -J367- -4-.

Note. For a better overview, the installation location is shown with the battery cooling module illustration removed.

Installing

  1. Tightening specification, refer to «BATTERY AND AUXILIARY BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-and-auxiliary-battery-overview)

Install in reverse order of removal. Note the following

Install the air guide inlet for the traction battery. Refer to Removal and Installation .

Install the luggage compartment floor panel. Refer to Interior Trim .

BATTERY - ENGINE CODE(S): CHJA

Removing

CAUTIONDamaged high voltage components may produce dangerously high voltage. Observe the following when working near or around high voltage components and cables: Do not use tools that have sharp edges, that are used for cutting or shaping, or that generate heat, such as welding, soldering, hot air or thermal adhesive equipment. Inspect the high voltage components in the area where the work will be performed before starting the procedure. Perform a visual inspection of the electric drive power and control electronics -JX1-, electro-drive drive motor -V141-, the electrical A/C Compressor -V470- and the high voltage cables when working in the engine compartment. Perform a visual inspection of the high voltage cables and the covers when working on the floor panel. Perform a visual inspection of the high voltage cables and the electro-box with the high voltage system maintenance connector -TW - when working in the rear of the vehicle. Perform a visual inspection of all of the potential equalization cables. Note the following when performing the visual inspection: None of the components may display any exterior damage. The high voltage cable insulation and the potential equalization cables may not be damaged. The high voltage cables may not be deformed in any way. Each high voltage component muss be labeled with a red warning label.

Bring the battery cooling module into the service position. Refer to Battery Cooling Module Overview .

Remove the bass box, if applicable. Refer to Removal and Installation .

Connect the battery charger for battery support mode, refer to Removal and Installation .

Open the cover -6- over the battery negative "-" terminal.

Scheme 56

Scheme 56

Loosen nut -5- a few turns and remove ground cable terminal clamp from battery terminal.

Disconnect the central gas vent hose -7-.

Open the cover -3- over the battery positive terminal.

Loosen the nut -2- several turns and remove the positive wire terminal clamp with fuse panel A -SA- from the battery terminal.

CAUTIONImmediately wrap the positive cable for the battery terminal with insulating tape and set it aside.

Remove the bolt -arrow- on the battery mounting bracket -1-.

Remove battery -4- from the luggage compartment.

WARNINGPollution risk. Battery and sulfuric acid disposal regulations must be followed when disposing of batteries Generator, Checking .

Installing

  1. Tightening specification, refer to «BATTERY AND AUXILIARY BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-and-auxiliary-battery-overview) .

Note. Only maintenance-free batteries conforming to standards "TL 82506" (as of December 1997) and "VW 75073" (as of August 2001) may be installed. Batteries from the Audi Parts Program have a bottom strip-adapter for adapting to different grip channels. For information on how to use the base strip adapter, if applicable, see the battery operating instructions.

Insert the battery in the battery mount so the base strip engages in the battery mount retaining strip -arrow-.

  1. It should no longer be possible to move the battery.

Position battery bracket -1-.

  1. Lug at battery bracket must engage in recess at battery base strip.

Tighten the battery bracket bolt -arrow-.

Connect central venting system hose -7- while observing notes Generator, Checking .

Switch off the ignition and all electrical consumers.

Connect the battery -5- in the following sequence

Connect positive cable terminal clamp -3- by hand to battery positive terminal "+" and tighten nut.

Disconnect the connector -3- on the battery monitoring control module -J367- -1-.

Connect the ground wire terminal clamp "1" by hand to the battery negative "-" terminal and tighten the nut.

Connect the electrical connector on the battery monitoring control module -J367-.

Check battery after installation for secure seating Generator, Checking .

Install the battery cooling module. Refer to Battery Cooling Module Overview .

After replacing, adapt the battery in the "Guided Fault Finding" or "Guided Functions" mode using the Vehicle Diagnostic Tester.

Continue following the instructions on the vehicle diagnostic tester display in the case of a new battery.

When the battery is connected, the following steps must be performed

  1. Activate the power window regulator one-touch up/down function. Refer to the owner's manual.
  2. Check DTC memories of all control modules and erase "undervoltage" DTC if necessary, using the Vehicle Diagnostic Tester.

Note. After connecting the power supply, the ABS warning lamp may only go out after the vehicle has been driven a few yards.

BATTERY MONITORING CONTROL MODULE -J934- FOR AUXILIARY BATTERY -A1

Removing

CAUTIONDamaged high voltage components may produce dangerously high voltage. Observe the following when working near or around high voltage components and cables: Do not use tools that have sharp edges, that are used for cutting or shaping, or that generate heat, such as welding, soldering, hot air or thermal adhesive equipment. Inspect the high voltage components in the area where the work will be performed before starting the procedure. Perform a visual inspection of the electric drive power and control electronics -JX1-, electro-drive drive motor -V141-, the electrical A/C Compressor -V470- and the high voltage cables when working in the engine compartment. Perform a visual inspection of the high voltage cables and the covers when working on the floor panel. Perform a visual inspection of the high voltage cables and the electro-box with the high voltage system maintenance connector -TW - when working in the rear of the vehicle. Perform a visual inspection of all of the potential equalization cables. Note the following when performing the visual inspection: None of the components may display any exterior damage. The high voltage cable insulation and the potential equalization cables may not be damaged. The high voltage cables may not be deformed in any way. Each high voltage component muss be labeled with a red warning label.

Remove the luggage compartment left side trim panel cover.

Disconnect the electrical connector -1-.

Remove the nut -3-.

Loosen the nut -4- a few turns and remove the battery ground (GND) cable terminal and battery monitoring control module 2 -J934- -2- from the battery negative pole.

Note. For a better overview, the installation location is shown with the battery cooling module illustration removed.

Installing

  1. Tightening specification, refer to «BATTERY AND AUXILIARY BATTERY OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__battery-and-auxiliary-battery-overview) .

Install in reverse order.

GENERATOR - ENGINE CODE(S): CAEB, CHJA & CPMA

Special tools and workshop equipment required

  1. Locking tool T40098

Removing

Scheme 57

Scheme 57

Turn off the ignition.

Disconnect the ground cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING .

CAUTIONRisk of destroying if the running direction of a used ribbed belt is reversed. Before removing ribbed belt, marking running direction with chalk or a felt-tip pen for reinstallation.

Turn the tensioning element clockwise -arrow- to release the tension on the ribbed belt and lock it with the locking tool T40098.

Remove ribbed belt.

Remove upper and lower bolts -arrows- and pivot generator toward front.

Scheme 58

Scheme 58

Disconnect the electrical connector -1-.

Scheme 59

Scheme 59

Remove terminal 30/B+ -2-.

Remove the generator.

Installing

Scheme 60

Scheme 60
  1. Tightening specifications, refer to «GENERATOR WITHOUT BUSHINGS OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control) .

Install in reverse order of removal. Note the following

Position the ribbed belt over pulleys in the specified sequence.

  1. Vibration damper
  2. Coolant pump
  3. Ribbed belt tensioner
  4. Generator
  5. Power steering pump
  6. A/C Compressor

Note. When installing the ribbed belt, make sure it is seated correctly on the belt pulley.

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING .

Start the engine and check the ribbed belt routing.

GENERATOR - ENGINE CODE(S): CALB

Removing

Scheme 61

Scheme 61: GENERATOR - ENGINE CODE(S): CALB

Switch the ignition off.

Disconnect the battery ground (GND) cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .

Remove the front noise insulation. Refer to -1- Removal and Installation .

Remove the bolt -1- and nut -3-.

Scheme 62

Scheme 62

Remove the right lock carrier brace -2-.

Scheme 63

Scheme 63
CAUTIONRisk of destroying if the running direction of a used ribbed belt is reversed. Before removing ribbed belt, marking running direction with chalk or a felt-tip pen for reinstallation.

Pivot tensioner in the direction of the -arrow- to release tension on ribbed belt.

Detach ribbed belt from generator pulley.

Release tensioner.

Note. Observe safety precautions when working on the automatic transmission .

Remove the bolt -arrow- for the ATF lines.

Disconnect the electrical connector on the oil level thermal sensor -G266- and free up the wiring harness on the generator.

Scheme 64

Scheme 64

Remove the bolts -arrows- and remove generator.

Disconnect electrical connector -1-.

Remove terminal 30/B+ -item 2-.

Remove the generator downward between the ATF lines and the lock carrier.

Installing

  1. Tightening specifications, refer to «GENERATOR WITHOUT BUSHINGS OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control) .

Install in reverse order of removal. Note the following

Secure the ATF lines. Refer to REMOVAL AND INSTALLATION .

Install the lock carrier right brace. Refer to Removal and Installation .

Position ribbed belt over pulleys in stated sequence.

Scheme 65

Scheme 65
  1. Generator
  2. Idler pulley
  3. Coolant pump
  4. Power steering pump
  5. A/C Compressor
  6. Tensioner for ribbed belt
  7. Crankshaft

Note. When installing the ribbed belt, make sure it is seated correctly on the belt pulley.

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

Start the engine and make sure the belt it running correctly.

STARTER - ENGINE CODE(S): CAEB, CHJA & CPMA

Removing

Turn off the ignition.

Disconnect the ground cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING . Vehicles with high voltage system, refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING .

Remove the strut tower. Refer to Removal and Installation .

Remove the right engine mount. Refer to Removal and Installation .

Remove the front exhaust pipe. Refer to Removal and Installation .

Disconnect the catalytic converter and move it to the side. Refer to Removal and Installation .

Remove the bolts -1- and -2- and the turbocharger support.

Scheme 66

Scheme 66: STARTER - ENGINE CODE(S): CAEB, CHJA & CPMA

Remove the nut -1- and free up the ground wire on the engine support.

Scheme 67

Scheme 67

Remove the bolts -arrows- and the right engine support.

Remove the bolt -1- for the wiring bracket -2-.

Scheme 68

Scheme 68

Disconnect the electrical connector -3- by sliding the retainer back and pressing the release down.

Scheme 69

Scheme 69

Remove the terminal 30/B+ wire -2- from the starter.

Remove the bolts -1- and -4- and the starter.

Note. 1- can be reached from above.

Installing

Scheme 70

Scheme 70
  1. Tightening specifications, refer to «STARTER OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__starter-overview) .

Install in reverse order of removal. Note the following

CAUTIONThere is a risk of damaging the starter. To tighten the bolts -2-, insert the spacer sleeve -arrow- between the starter and transmission.

Install the engine support and the right engine mount. Refer to Removal and Installation .

Install the turbocharger support. Refer to Removal and Installation .

Install the catalytic converter and front exhaust pipe. Refer to Removal and Installation .

Install the strut tower. Refer tor Removal and Installation .

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

STARTER - ENGINE CODE(S): CALB

Removing

Scheme 71

Scheme 71: STARTER - ENGINE CODE(S): CALB

Switch off the ignition.

Disconnect the battery ground (GND) cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .

CAUTIONDanger of damaging the flex joints in the front muffler. Do not bend the flex joints in the front muffler more than 10°.

Loosen the clamping sleeve -1-, push it toward the rear and tie up the left front muffler.

Remove the right engine mount. Refer to Removal and Installation .

Scheme 72

Scheme 72

Remove the nut -1- and free up the ground wire on the engine support.

Remove the bolts -arrows- and the right engine support.

Disconnect the electrical connector -3- by sliding the retainer back and pressing the release down.

Disconnect electrical wire -2- from starter.

Remove the bolt -1- and the rear extension from the transmission.

Remove the bolt -4- and remove the starter.

Note. 1- is reached from above.

Installing

  1. Tightening specifications, refer to «STARTER OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__starter-overview) .

Install in reverse order of removal. Note the following

Install the engine support and the right engine mount. Refer to Removal and Installation .

Align the exhaust system so that there is no tension. Refer to Removal and Installation .

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

STARTER, 2.0L TDI AND MANUAL TRANSMISSION

Removing

Scheme 73

Scheme 73: STARTER, 2.0L TDI AND MANUAL TRANSMISSION

Switch the ignition off.

Disconnect the battery ground (GND) cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING . Vehicles with high voltage system, refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING .

Remove the strut tower. Refer to Removal and Installation .

Remove the right engine mount. Refer to [For engine(s) CAEB] Removal and Installation .

Remove the bolts -1- and -2- and the turbocharger support.

Remove the front exhaust pipe, refer to [For engine(s) CAEB] Removal and Installation .

Scheme 74

Scheme 74

Disconnect the particulate filter and move it to the side. Refer to [For engine(s) CAEB] Removal and Installation .

Remove the nut -1- and free up the ground wire on the engine support.

Remove the bolts -arrows- and the right engine support.

Remove the bolt -1- for the wiring bracket -2-.

Disconnect the electrical connector -3- by sliding the retainer back and pressing the release down.

Scheme 75

Scheme 75

Remove the terminal 30/B+ wire -2- from the starter.

Remove the bolts -1- and -4- and the starter.

Note. 1- can be reached from above.

Installing

  1. Tightening specifications, refer to «STARTER OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__starter-overview) .

Install in reverse order of removal. Note the following

CAUTIONThere is a risk of damaging the starter. To tighten the bolts -2-, insert the spacer sleeve -arrow- between the starter and transmission.

Install the engine support and the right engine mount [For engine(s) CAEB] Removal and Installation .

Install the turbocharger support [For engine(s) CAEB] Removal and Installation .

Install the particulate filter and the front exhaust pipe [For engine(s) CALB] Removal and Installation .

Install the strut tower Removal and Installation .

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

STARTER, 3.0L TDI

Removing

Switch the ignition off.

Disconnect the battery ground (GND) cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING . Vehicles with high voltage system, refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING .

Remove the front exhaust pipe. Refer to [For engine(s) CAEB] Removal and Installation .

Remove the generator. Refer to GENERATOR, 3.0L TDI WITHOUT AUXILIARY HEATER .

Remove the right engine mount. Refer to [For engine(s) CAEB] Removal and Installation .

Remove screws -1- and -2-.

Scheme 76

Scheme 76: STARTER, 3.0L TDI

Press the lower right coolant pipe to the side.

Note. Disregard item -3-.

Remove the nut -1- and free up the ground wire on the engine support.

Scheme 77

Scheme 77

Remove the bolts -arrows- and the right engine support.

Note. The engine support is illustrated without the heat shield.

Disconnect the electrical connector -3- by sliding the retainer back and pressing the release down.

Remove the terminal 30/B+ wire -2- from the starter.

Remove the bolts -1- and -4- and the starter.

Note. 1- can be reached from above.

Installing

  1. Tightening specifications, refer to «STARTER OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control__starter-overview) .

Install in reverse order of removal. Note the following

Install the engine support and the right engine mount. Refer to [For engine(s) CAEB] Removal and Installation .

Install the lower right coolant pipe. Refer to [For engine(s) CAEB] Removal and Installation .

Install the generator. Refer to GENERATOR, 3.0L TDI WITHOUT AUXILIARY HEATER .

Install the front exhaust pipe. Refer to [For engine(s) CAEB] Removal and Installation .

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

GENERATOR, 3.0L TDI WITHOUT AUXILIARY HEATER

Special tools and workshop equipment required

  1. Torx T60 Socket T40087

Removing

Scheme 78

Scheme 78

Switch the ignition off.

Disconnect the battery ground (GND) cable from the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING . Vehicles with high voltage system, refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING .

Remove the engine cover in the direction of the -arrows-.

Remove the air duct -arrow-.

Scheme 79

Scheme 79

Disconnect the mass airflow sensor -G70- connector -1-.

Scheme 80

Scheme 80

Remove the bolt -3- and free up the exhaust pressure sensor 1 -G450- -4- on the air guide pipe.

Free up the exhaust gas temperature sensor 4 -G648- -2- connector on the air pipe.

Remove the air guide hose with the mass airflow sensor -G70- by releasing the hose clamp -5- and opening the clips -arrows-.

Disconnect the vacuum line -1-.

Scheme 81

Scheme 81

Remove the air filter housing and on the rear side, disconnect the electrical connector -2- on the air filter bypass door valve -N275-.

Remove the screws -2- and -3-.

Scheme 82

Scheme 82

Remove the air guide pipe from the air guide hose by loosening the hose clamp -1-.

Remove the right front wheel.

Loosen the front section of the right front wheel housing liner and press it back. Refer to Removal and Installation .

Remove the front noise insulation -1-. Refer to Removal and Installation .

Remove the bolt -1- and nut -3-.

Remove the right lock carrier brace -2-.

Vehicles with DSG Transmission

Scheme 83

Scheme 83

Note. Note the rules for cleanliness when working on the DSG transmission .

Remove the bolt -arrow- for the automatic transmission fluid (ATF) lines.

All Vehicles

Scheme 84

Scheme 84

Disconnect the -4- right electrohydraulic engine mount solenoid valve -N145- connector.

Remove the mount -5- for the connector on the bracket -3-.

Remove the nut -1- and remove the bracket and wiring harness from the subframe.

Cut the cable tie -6- and move the bracket and heat shield to the side.

Remove the nut -2- and disconnect the ground wire on the longitudinal member.

Remove the air guide hose from the right air guide pipe and lay it aside by loosening the hose clamp -arrow-.

Scheme 85

Scheme 85

Scheme 86

Scheme 86
CAUTIONRisk of destroying if the running direction of a used ribbed belt is reversed. Before removing ribbed belt, marking running direction with chalk or a felt-tip pen for reinstallation.

Using a torx T60 socket T40087, move the tensioning element clockwise -arrow- to release the tension on the ribbed belt.

Remove the ribbed belt from the generator ribbed belt pulley.

Loosen the generator bolts -arrows- approximately 6 turns.

Scheme 87

Scheme 87

Using a hammer, carefully hit bolt heads to loosen generator mount bushings.

Remove the bolts completely.

Remove generator from bracket.

Scheme 88

Scheme 88

Remove the cap and then remove the terminal 30/B+ -1- nut.

Disconnect the electrical connector -2-.

Remove the generator -1- to the right between the wiring harness -2- and the automatic transmission fluid (ATF) lines -3- -arrow-, as illustrated.

Scheme 89

Scheme 89

Installing

  1. Tightening specification, refer to «GENERATOR WITH BUSHINGS OVERVIEW»(/audi/q5/i-2008-2012/remont/charging-system/#battery-starter-generator-cruise-control) .

Install in reverse order of removal. Note the following

Note. Tight sleeves for generator mount must be made smooth-running, otherwise clamping force of sleeve is too little despite correct torque. During removal the bushing may come out a little. During reinstallation ensure that the bushing is fully seated against the bracket before final torque is achieved.

Drive retaining bolt bushings back slightly for easier generator installation.

Install the right air guide pipe. Refer to [For engine(s) CAEB] Removal and Installation .

Place ribbed belt over ribbed belt pulleys.

Scheme 90

Scheme 90
  1. Generator
  2. Idler pulley
  3. Idler pulley
  4. Coolant pump
  5. Idler pulley (varies depending on construction version)
  6. Power steering pump
  7. A/C Compressor
  8. Ribbed belt tensioner
  9. Vibration damper

Note. When installing the ribbed belt, make sure it is seated correctly on the belt pulley.

Connect battery. Required actions, refer to BATTERY, DISCONNECTING AND CONNECTING . Take the necessary precautions for vehicles with a high voltage system and refer to BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING

Start the engine and make sure the belt it running correctly.

SPECIAL TOOLS

Special tools and workshop equipment required

Scheme 91

Scheme 91: SPECIAL TOOLS

Scheme 92

Scheme 92
  1. Locking Tool T40098
  2. Torx Socket T60 T40087

See also:
Generator, Checking
Removal and Installation
Battery, Starter, Generator, Cruise Control
ENGINE COMPARTMENT E-BOX, WIRE JUNCTION, FUSE HOLDER AND BATTERY OVERVIEW Tightening Specifications for the Fuse Panel A
FUSE PANEL A IN LUGGAGE COMPARTMENT
Removal and Installation
Removal and Installation
Removal and Installation
Battery Cooling Module Overview
Removal and Installation
REMOVAL AND INSTALLATION
Removal and Installation
Removal and Installation
Removal and Installation
Removal and Installation
CONTACT CORROSION
BATTERY
BATTERY, DISCONNECTING AND CONNECTING
BATTERY MONITORING CONTROL MODULE
BATTERY
BATTERY AND AUXILIARY BATTERY, DISCONNECTING AND CONNECTING
BATTERY MONITORING CONTROL MODULE -J367- FOR BATTERY
GENERATOR
GENERATOR
STARTER
BATTERY OVERVIEW
BATTERY AND AUXILIARY BATTERY OVERVIEW
STARTER OVERVIEW
GENERATOR, 3.0L TDI WITHOUT AUXILIARY HEATER