Maintenance Procedures Audi S6 C6

Engine overview

Note. Some engines listed below are for European models.

Gasoline engines

* 91 RON standard unleaded gasoline is permissible, however with decreased power output.

* 95 RON Super unleaded gasoline is permissible, however with decreased power output.

Diesel engines

*Belgium only

Delivery inspection

For information regarding Inspection Service refer to --> ServiceNet; Delivery Satisfaction; Perfect Delivery Inspection (PDI) forms for appropriate model and year.

Oil change service

For engine oil specifications and capacities please refer to --> ServiceNet; Additional Information; Fluid Capacity Chart for appropriate model and year

Also, for appropriate service intervals refer to --> ServiceNet; Maintenance Schedule for appropriate model year

Inspection service

For appropriate service intervals refer to --> ServiceNet; Maintenance Schedule for appropriate model year

All switches, all electrical components, all displays and other operating elements: Checking function

1. Check following

1. Lighting, headlamps, fog lights, turn signals, hazard warning flashers, taillights, rear fog lights, backup lights, brake lights, parking lights
2. Interior and reading lights (automatic shutoff on interior lights), illuminated storage compartment, illuminated ashtray, luggage compartment lighting, illuminated ignition
3. Warning buzzer for lights and/or radio left on
4. All switches in console

1. MMI function (radio, navigation, etc.)
2. Driver Information System (DIS)
3. Instrument unit with all displays, meters and lights
4. Two-tone horn

1. Windshield/headlamp wipers, headlamp cleaning system
2. Cigarette lighter
3. Electrical exterior mirrors (heated, adjustable, foldable)
4. Electric windows

1. Electric tilt/slide sunroof
2. Sun shade
3. Central locking, remote control operation, comfort closing
4. Electrical seat, headrest, steering wheel and seatbelt height adjustment

1. Heated seats and rear seat bench, heated steering wheel

Automatic transmission

>

1. «39 - FINAL DRIVE, DIFFERENTIAL»(/audi/s6/c6-2006-2008/remont/differentials-drive-axles/#6-speed-automatic-transmission-09e-awd) for 6 SPD. AUTOMATIC TRANSMISSION 09E ALL WHEEL DRIVE
2. «39 FINAL DRIVE - FRONT DIFFERENTIAL»(ref-281379-S30349739612008031100000) for AUTOMATIC TRANSMISSION 09L, ALL WHEEL DRIVE
3. «39 FINAL DRIVE, DIFFERENTIAL»(/audi/s6/c6-2006-2008/remont/differentials-drive-axles/#continuously-variable-transmission-cvt-01j) for CONTINUOUSLY VARIABLE TRANSMISSION (CVT) 01J
4. «39 - FINAL DRIVE, DIFFERENTIAL»(/audi/s6/c6-2006-2008/remont/differentials-drive-axles/#continuously-variable-transmission-cvt-01j-internal-components-servicing) for CONTINUOUSLY VARIABLE TRANSMISSION (CVT) 01J - INTERNAL COMPONENTS, SERVICING

Continuously Variable Transmission (CVT)

>

1. «39 - FINAL DRIVE, DIFFERENTIAL»(/audi/s6/c6-2006-2008/remont/differentials-drive-axles/#6-speed-automatic-transmission-09e-awd) for 6 SPD. AUTOMATIC TRANSMISSION 09E ALL WHEEL DRIVE
2. «39 FINAL DRIVE - FRONT DIFFERENTIAL»(ref-281379-S30349739612008031100000) for AUTOMATIC TRANSMISSION 09L, ALL WHEEL DRIVE
3. «39 FINAL DRIVE, DIFFERENTIAL»(/audi/s6/c6-2006-2008/remont/differentials-drive-axles/#continuously-variable-transmission-cvt-01j) for CONTINUOUSLY VARIABLE TRANSMISSION (CVT) 01J
4. «39 - FINAL DRIVE, DIFFERENTIAL»(/audi/s6/c6-2006-2008/remont/differentials-drive-axles/#continuously-variable-transmission-cvt-01j-internal-components-servicing) for CONTINUOUSLY VARIABLE TRANSMISSION (CVT) 01J - INTERNAL COMPONENTS, SERVICING

Battery manager: Deactivate transport mode

Transport mode is for maintaining a vehicles startability (battery charge). Transport mode limits discharging of battery. If transport mode is activated, many functions are not available or have limited function, for example, CD changer is deactivated, radio is deactivated, etc.

Deactivate transport mode using guided fault finding or guided functions.

1. Follow these steps in sequential order.

Scheme 1

1. Connect VAS 5051/5052
2. Guided Fault Finding or Guided Functions
3. Go to - function/component selection
4. Service work

1. Energy manager, activate/deactivate transport mode
2. Now follow guided program

Battery level, read out with Guided Fault Finding

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided functions
3. Select brand and model
4. Service work

1. A-battery, checking at delivery inspection
2. Follow the instructions.

Note. If tester display shows charge or replace battery, see --> - 27 - STARTER, GENERATOR, CRUISE CONTROL

Battery with magic eye

1. Switch ignition off and remove ignition key.

Sedan

1. Raise luggage compartment floor covering and secure.

Scheme 2

Avant

1. Remove luggage compartment cargo floor - 1 - and spare wheel cover - 2 -.

Scheme 3

All

1. If present, open battery retaining band - 1 -.

Scheme 4

1. Release retaining clips - arrows - with a screwdriver - 2 - and remove battery ground cover - 1 -.

Note. Shown with formed insert removed in illustration.

Scheme 5

1. The magic eye - arrow - gives information about electrolyte level and battery charge.
2. Three color displays are possible

Note. If the battery was recharged, that is, if it was charged while driving, air bubbles can form under the magic eye. These cause an incorrect magic eye color display. If batteries are equipped with plugs for production reasons, these are covered with plastic film. Before performing visual check, carefully and lightly knock magic eye with handle of a screwdriver. This removes air bubbles. Read "magic eye" color display.

Battery sealing plugs

1. On batteries with visible min and max markings, electrolyte level only needs to be checked visually.
2. Electrolyte level must be between min. and max. markings.
3. On batteries where the outer min. and max. markings are difficult to see or the visibility of the electrolyte level cannot be guaranteed due to the opaque battery housing, the sealing plugs must be removed. Then it is possible to check electrolyte level by a visual inspection of the battery interior.
4. The electrolyte level must meet the inner electrolyte level marking (plastic bar). This corresponds to the outer max. mark.

Note. If electrolyte level is too low, battery loses capacity (loses performance) because the cell plates dry out. If the cell plates are not covered by electrolyte, the plates and plate bridges start to corrode causing the function of the battery to diminish. After a while the battery does no longer function. The battery becomes useless.

Tires, checking

Note. For reasons of safety only tires of same type and tread pattern should be fitted on a vehicle! On All Wheel Drive vehicle tires of the same type and tread pattern must be used. Otherwise the center differential may be damaged.

1. Check running surfaces and side walls for damage, remove foreign materials, if necessary.

1. Check running surfaces and side walls for damage, remove foreign materials, if necessary.
2. Check tires for scuffing, one sided wear, porous side walls, cuts and fractures.

Check tread depth.

1. Minimum depth: 1.6 mm

Note. This value may vary for individual countries due to different legislative regulations.

Scheme 6

1. The minimum tread depth is reached when the tires have worn down level with the 1.6 mm high tread wear indicators - arrows - positioned at intervals around the tire.
2. If the tread depth is approaching the legal minimum permissible depth, the customer must be informed.

Scheme 7

Tire pressure values for summer tires are on the sticker on the inside of the fuel tank flap.

Note. Observe that the inflation pressure specifications on the sticker refer to the air pressure of cold tires. Do not reduce increased pressures on warm tires. When using winter tires, the tire pressure must be increased about 0.2 bar.

Spare wheel

1. Spare wheel with standard tire

Keep the highest pressure intended for the vehicle

1. Mini spare tire

Pressure is on side of tire

Note. On vehicles with steel rims and wheel covers, check tire pressure valve extensions for damage and contamination that can cause leaks. Replace, if necessary.

Scheme 8

On vehicles with a tire repair kit, check durability date - arrow -.

Note. If expiration date has passed, replace bottle.

Brake fluid, changing

Note. Use only new Original VW / Audi brake fluid, see ETKA

Scheme 9

1. Brake filling and bleeding tool VAS 5234

Scheme 10

1. Brake filling and bleeding tool V.A.G 1869 with upgrade kit V.A.G 1869/4

Observe operating instructions for VAS 5234 or for V.A.G 1869 !

Scheme 11

1. Remove brake fluid reservoir cap - 1 -.

1. Remove brake fluid reservoir plug - arrow -.

Scheme 12

1. Connect suction hose from VAS 5234 or V.A.G 1869 to tube - 1 - of brake fluid reservoir.
2. With suction hose from VAS 5234 or from V.A.G 1869 or with extractor, extract 2/3 of the brake fluid.
3. Disconnect suction hose.
4. Connect suction hose from VAS 5234 or V.A.G 1869 to tube - 2 - of brake fluid reservoir.

1. With suction hose from VAS 5234 or from V.A.G 1869 or with extractor, extract 2/3 of the brake fluid.
2. Disconnect suction hose.
3. Install brake fluid reservoir plug.

Scheme 13

1. Install adapter - 1 - to brake fluid reservoir.
2. Connect filler hose - 2 - from VAS 5234 or V.A.G 1869 to adapter.

Vehicles with manual transmission

1. Pull cover cap off clutch slave cylinder bleed screw.

Scheme 14

1. Place extractor bleeder hose - 1 - on clutch slave cylinder bleeder screw, open bleeder screw, and let about 100 ml drain out. Close bleeder screw and install cover cap.
2. Operate clutch pedal several times.

Continued for all vehicles

1. Remove caps from the bleeder screws.

1. Connect extractor bleeder hose - 1 - to rear right bleeder screw, open bleeder screw and allow about 200 ml to flow out. Close bleeder screw.

Repeat work sequence on other side of vehicle at rear.

Scheme 15

1. Connect extractor bleeder hose - 1 - to front right bleeder screw, open bleeder screw and allow about 200 ml to flow out. Close bleeder screw.

Repeat work sequence on other side of vehicle at front.

Table - Sequence / quantity of brake fluid

* Including brake fluid extracted from brake fluid reservoir and quantity from clutch slave cylinder.

1. Fit cover caps to brake caliper bleed screws.
2. Move filler lever on VAS 5234 or V.A.G 1869 to position - B - (see operating instructions).
3. Take filler hose off adapter.
4. Unscrew adapter from brake fluid reservoir.

1. Check brake fluid level and correct if necessary.
2. Install cap to brake fluid reservoir.
3. Check pedal pressure and brake pedal free play. Free play: Max. 1 / 3 of pedal travel

Brake system: Visual inspection for leaks and damage

1. Check the following components for leaks and damage

1. Brake master cylinder
2. Brake booster
3. ABS Hydraulic unit
4. Brake calipers

1. Check that brake hoses are not twisted.
2. Ensure brake hoses do not come in contact with any vehicle components when steering is at full lock.
3. Check brake hoses for porosity, bubbles and cracks.
4. Check brake hoses and lines for chafing.

1. Check all brake line connections for secure mounting, leaks, or corrosion.

Brake pads: Thickness, checking

Front disc brake pads

Note. To check lining thickness, you must remove front wheels.

Scheme 16

1. Before removing, mark the placement of the wheels to each brake disc and reinstall wheels in same position after checking.

Rear disc brake pads

Note. Visual inspection without removing wheels

Brake fluid level, dependent on lining wear: Check

Note. Use only new Original VW / Audi brake fluid, see ETKA

1. Please observe the following

1. Fluid level must be at MAX mark

Note. To prevent the brake fluid from overflowing from the reservoir, the level must not be over the MAX mark.

When driving, fluid level drops slightly from use and automatic brake pad adjustment.

1. Always check fluid level in conjunction with brake pad wear

1. When brake pads are new or if there is still enough brake lining left, the brake fluid level must be between MIN and MAX marks.
2. With brake fluid at MIN mark or slightly above, topping off brake fluid is not necessary when wear limit of brake pads has been almost reached.

Digital TV Tuner: Assign remote control key fob

ELSA: Vehicle electrical - Installation guide, Digital TV Tuner

Check vehicle key function

1. Separate keys so that the function of each key can be checked individually.
2. Mechanically lock and unlock vehicle with keys on drivers door.
3. Insert keys in ignition and start engine one after the other.
4. If engine switches off by itself after about 3 seconds and "SAFE" appears in the odometer display, the key has not been programmed to the immobilizer.

1. Repair measures: Guided Fault Finding (Programming vehicle keys).
2. Note number of checked and delivered vehicle keys in delivery protocol.

DTC memory, interrogating with Vehicle Diagnosis, Testing and Information System VAS 5051/5052

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Vehicle - Self-diagnosis
3. Gateway - Installation list
4. Read control module with stored DTC memory.

1. Correct relevant malfunctions with customers approval.

Noise insulation, removing

Removing

Scheme 17

1. Remove screws or quick-release connectors - 1 - and - 2 - and remove noise insulation.

Installing

Installation is reverse of removal. On vehicles with auxiliary heater, note the following

1. After installing noise insulation, check location of exhaust pipe - A - ; a seal - B - must be installed between exhaust pipe and noise insulation.

Scheme 18

1. Exhaust pipe must project below seal and the escape of exhaust from the pipe - A - must not be impaired.

Front axle joints: Seal boots, checking play and attachment

Note. Perform this test with vehicle on lift (wheels hanging freely).

Tie rod ends

1. Check play by moving tie rods and wheels.

1. You should not feel or see any play.

1. Check all around ball joint boots - arrow - for damage and correct seating. Use a mirror, if necessary.

1. Ball joint boots can usually be recognized by leaking lubrication.

Scheme 19

1. Make sure lock nut - 1 - is tightened to 40 Nm.

All control arms

Scheme 20

1. Check all around ball joint boots - arrows - for damage and correct seating. Use a mirror, if necessary.

1. Ball joint boots can usually be recognized by leaking lubrication.
2. You should not feel or see any play.

Control arm

Scheme 21

1. With unloaded wheels, check relative movement of wheel bearing housing to control arm.
2. By raising and lowers the wheels several times by hand - arrow - the relative movement between wheel bearing housing and control arm can be observed.
3. If relative movement when lifting or lowering gives evidence of play that can be felt or seen, control arm must be replaced.

Drive shaft boot

1. Check all around interior and exterior drive shaft boot for damage and correct seating. Turn wheel, if necessary.

1. By turning the front wheels, tears can be found in their early stages.
2. Drive shaft boot damage can usually be recognized by leaking lubrication.

Power steering, checking oil level

1. With engine not running, move front wheels in straight-ahead position.

Cold fluid (approx. 68 ° F [20 ° C])

1. Remove cover.
2. Clean dipstick with clean cloth.
3. Screw cap on hand-tight and remove again.

Note. Screw cap fully in to get an accurate fluid level reading.

Scheme 22

1. Check fluid level: Fluid level must be in - A - range.

Fluid at operating temperature (approx. 176 ° F [80 ° C])

1. Remove cover.
2. Clean dipstick with clean cloth.
3. Screw cap on hand-tight and remove again.

Note. Screw cap fully in to get an accurate fluid level reading. Check fluid level: Fluid level must be in - B - range

Note. If fluid level is above specified range, fluid must be extracted off. If the fluid level is below the specified level, check the power steering system for leaks. It is not enough to simply top off with oil. Do not use power steering fluid that has drained out.

Calibrate rearview mirror with compass

> - 68 - INTERIOR EQUIPMENT

Ribbed belt, V8 4.2 and V10 5.2, checking tension and condition

Check ribbed belt for

1. Sub-surface cracks (cracks, core ruptures, cross sectional breaks)
2. Layer separation (top layer, cord strands)
3. Base break-up
4. Fraying of cord strands

1. Flank wear (material wear, frayed flanks, flank brittleness -glassy flanks-, surface cracks)
2. Traces of oil and grease
3. Check guide rollers and tensioner rollers and replace if necessary.

Note. Replace the belt if any damage is found. This will avoid possible break-downs or operating problems. The replacement of a ribbed belt is a repair measure

Ribbed belt tension

V8 4.2L engine -->

1. 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 4.2 LITER 8-CYL. 5V ENGINE MECHANICAL ENGINE CODE(S): BAT, BNK
2. «13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK»(ref-281367-S27534624422008031100000) for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BVJ
3. 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE: BNK

V10 5.2L engine -->

Ribbed belt: Replacing

6-cylinder Engine --> - 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK

8-cylinder Engine -->

1. 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 4.2 LITER 8-CYL. 5V ENGINE MECHANICAL ENGINE CODE(S): BAT, BNK
2. «13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK»(ref-281367-S27534624422008031100000) for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BVJ
3. 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE: BNK

A/C system: Check function, set temperature to 72 F (22 C)

Comfort

1. Check all climate control functions: Owners manual

Scheme 23

1. Check whether 72 ° F (22 ° C ) is set in both display fields.
2. Set temperature as follows, if necessary
3. Press the "AUTO" button.
4. Set temperature on drivers and passengers side to 72 ° F (22 ° C) with "rotary knobs".

Base

Scheme 24

1. Check all climate control functions: Owners manual
2. Carry out temperature setting as follows
3. Set rotary knobs - C and D - to A.
4. Set drivers side and passengers side temperature adjusters to 72 ° F (22 ° C).

Cooling system: Check freeze protection, add coolant, if necessary

Note. All new engines are filled with coolant additive G 12 Plus according to TL VW 774 F (purple color). G 12 Plus can be mixed with the previous coolant additives G 11 and G 12 (red). Ensure that the system is replenished only with G12 Plus (due to its positive properties). G 12 Plus is suitable as a filled-for-life filling for cast iron and all-aluminum engines and gives optimum protection against freezing, corrosion damage, scaling and over-heating. G 12 Plus increases the boiling point to 275 ° F (135 ° C) and ensures for a better heat dissipation. The coolant portion of the mixture must amount to at least 40% (freeze protection to -13 ° F [-25 ° C]) and should not exceed 60% (freeze protection to -40 ° F [-40 ° C]). Otherwise the freeze protection will be reduced and the cooling efficiency will be worsened. The freeze protection must be ensured to approximately -13 ° F (-25 ° C).

Checking freeze protection and adding coolant additive if necessary

Special tools, testers and auxiliary items required

Scheme 25

1. Refractometer T10007

Note. Read the bright/dark boundary to obtain an accurate reading for the following tests. Place a drop of water on the glass to improve the readability of the bright/dark boundary. The bright/dark boundary can be clearly recognized on the "WATERLINE". Check the concentration of the coolant additive using refractometer T10007 (operating instructions).

Scheme 26

The scale - 1 - of the refractometer is designed for coolant additives G 12; G12 Plus and G11.

Scale - 2 - refers only to coolant additive G 13. (previously L80)

Note. The freeze protection must be ensured to approximately -13 ° F [-25 ° C]. If for climatic reasons greater freeze protection is required, the amount of G 12 Plus can be increased, but only up to 60% (freeze protection to about -40 ° F [-40 ° C]), otherwise freeze protection and cooling effectiveness will be reduced. If freeze protection is insufficient, drain off required quantity shown in freeze protection table and add coolant additive G 12 Plus.

Note. Observe waste disposal regulations!

1. Check coolant additive concentration after test drive again.

Checking coolant level and adding coolant if necessary

1. Check coolant level in expansion tank with engine cold.

Scheme 27

1. Delivery inspection: Coolant level above the "MIN marking" - arrow -.
2. Inspection service: Coolant level above the "MIN marking" - arrow -.

1. If coolant is too low, add required amount according to mixture ratio.

Note. Determine cause of fluid loss which cannot be attributed to normal use and rectify (repair measure).

Mixture ratio

Note. Coolant additive G 12 Plus conforming to TL VW 774 F prevents freeze and corrosion damage, scaling, and raises the boiling point. For these reasons, the cooling system must be filled with radiator freeze and corrosion protection fluid all year round. Especially in countries with tropical climates or when vehicle is driven under heavy load, the coolant improves the engine reliability by its increased boiling point. The coolant concentration must not be reduced by adding water, even during the warmer season. The coolant additive ratio must be at least 40%.

Air cleaner: Clean air filter housing and replace filter

Snow screen, cleaning

1. In countries with cold climates, the snow screen must be cleaned ( PR No.: 1C2 / 1C4) --> «Snow screen, cleaning»(/audi/s6/c6-2006-2008/remont/procedures/#maintenance-procedures__snow-screen-cleaning) .

6 cylinder gasoline engines

Scheme 28

1. Remove screws - 1 - and remove air duct upward.
2. Unclip lines - 2 - from retainers.

Scheme 29

1. Loosen air duct intake hose - 3 - and connections (crankcase ventilation, mass air flow sensor).
2. Open clamps - 1 - with screwdriver and remove air duct.
3. Release air filter cover - 2 - , open and remove.
4. Remove Phillips screws - 3 - and filter insert.

1. Clean filter housing and install new air filter element.
2. Assembly is reverse of removal.

1. Follow notes * See footnote

8 cylinder gasoline engines

1. Remove bolts - arrows -.

Scheme 30

1. Remove air duct - 1 - and - 2 -.
2. Unclip fuel hose - 1 -.

Note. On USA vehicles, fuel hose is behind air duct hose - 3 -. Remove electrical connection - 2 - from Mass Air Flow Sensor G70. Disconnect Mass Air Flow Sensor G70 from air duct hose - 3 -.

Scheme 31

1. Open tension clamps - arrows - and remove upper part of air filter housing with Mass Air Flow Sensor G70.

Scheme 32

1. Remove 2 securing screws - arrows - from air filter insert.
2. Remove air filter insert.
3. Clean filter housing and install new air filter element.
4. Assembly is reverse of removal.

1. Follow notes * See footnote

10 cylinder gasoline engines

remove left air filter housing

Scheme 33

1. Remove bolts - arrows - and remove left air guide.

Scheme 34

1. Loosen hose clamps - 1 - and remove bolts - 2 through 4 -.

Scheme 35

1. Disconnect electrical connector - arrow - on Mass Air Flow (MAF) Sensor 2 G246.
2. Remove left upper part of air filter housing.
3. Remove air filter insert.

Remove right air filter housing

Scheme 36

1. Remove bolts - arrows - and remove right air guide.
2. Disconnect vacuum hoses - 4 - and - 5 -.

Scheme 37

1. Loosen hose clamps - 6 - and remove bolts - 1 through 3 -.

Scheme 38

1. Disconnect electrical connector - arrow - on Mass Air Flow (MAF) Sensor G70.
2. Remove right upper part of air filter housing.
3. Remove air filter insert.

Installing

Installation is done in reverse sequence while observing the following.

For proper mass air flow sensor function, it is important to observe the following notes and perform the procedure exactly.

Note. If the air filter insert is heavily soiled or soaked, dirt particles or moisture can reach the Mass Air Flow Sensor and cause an incorrect air flow reading. This causes lack of performance because a lower injection amount is calculated. Always use an original air filter insert. The air filter housing must be clean. Secure all hose connections with hose clamps that match current standard production Parts Catalog. When cleaning air filter housing with compressed air, observe the following: To avoid malfunctions, cover critical air carrying components such as Mass Air Flow (MAF) sensor, air duct, etc. with a clean cloth. Observe waste disposal regulations!

Scheme 39

1. Clean water drain (small hole in bottom part of air filter housing - arrow - ), blow out with compressed air if necessary.
2. Clean air filter housing (upper and lower parts) of salt residue, dirt or leaves (clean with vacuum, if necessary).
3. Check mass air flow sensor and air guide hose (clean air side) for salt residue, dirt and leaves.
4. Check air duct from lock carrier to air filter housing for dirt and leaves.

1. When installing air filter insert, ensure it is centered in mount on bottom part of of air filter housing.
2. Carefully place upper part of air filter housing onto lower part without great force. Ensure upper part of air filter housing is not sitting crooked on air filter insert (note air filter insert sealing lip).
3. Ensure air guide hose is seated firmly on mass air flow sensor.

Tightening torque

*Note

Note. If the air filter insert is heavily soiled or soaked, dirt particles or moisture can reach the Mass Air Flow Sensor G70 and cause an incorrect air flow reading. This causes lack of performance because a lower injection amount is calculated. Always use an original air filter insert. Use a lubricant (silicone-free) when installing intake hose. Secure all hose connections with hose clamps that match current standard production. ETKA Check drain hose in bottom side of air filter or dirt and adhesion (clean, if necessary). Clean air filter housing (upper and lower parts) of salt residue, dirt or leaves (clean with vacuum, if necessary). Check mass air flow sensor and intake hose (clean air side) for salt residue, dirt and leaves. Check intake canal up to filter insert for soiling. When installing air filter insert, ensure it is centered in mount on bottom of air filter. Carefully and gently place upper part of air filter on lower part. When doing so, ensure upper part of air filter is not crooked on air filter insert. Pay attention to the seal lip on the air filter insert (air leak). Finally, screw upper part of air filter onto lower part.

Engine (from above and below) and engine compartment: Visual inspection for leaks and damage

Perform visual check as follows

1. Check engine and engine compartment for leaks and damage.
2. Check lines, hoses and connections on following systems for leaks, chafing, porosity and cracks

1. Fuel system
2. Cooling and heating system
3. Brake system

1. Perform visual inspection from below using same viewpoints as when vehicle was on lift and noise insulation removed.

Scheme 40

1. Remove engine cover with both hands at places - 1 - and then - 2 -. (do not remove engine cover abruptly or by one side).

Engine cover, installing

1. To avoid damage, do not hit engine cover with fist or a tool.
2. Position engine cover on engine (be careful of oil filler tube and oil dipstick).
3. Push engine cover first with both hands into position - 3 - in rubber grommets and then with both hands into position - 4 -.

Engine oil: drain, replace oil filter

Note. Perform oil change at operating temperature.

Special tools, testers and auxiliary items required

Scheme 41

1. Oil extractor 1782
2. Tension band 2171-1

Scheme 42

1. Oil filter key 3417

Note. Observe waste disposal regulations!

Scheme 43

1. Remove coolant reservoir - 1 - and lay aside.
2. Remove oil filter cover with socket wrench SW 36 - 2 -.
3. Clean sealing surfaces oil filter cover and at oil filter housing.
4. Replace oil filter insert.

Scheme 44

Sealing ring on cap, replacing

1. Remove sealing ring at pull tab - arrow A - from cap - 1 -.
2. Insert new sealing ring - 2 - with semicircular profile in groove - arrow B - on cap.

1. The pull tab - arrow A - must face upward.
2. Smooth side of sealing ring - 2 - must face toward outside

Scheme 45

O-ring, inserting in oil filter housing

1. Insert O-ring - 2 - in groove - arrow - on oil filter housing - 1 -.

Note. Observe waste disposal regulations! Engage new oil filter insert in oil filter cover. Install oil filter cover. Install coolant reservoir. Remove noise insulation. --> Noise insulation, removing Open oil drain plug on oil pan or extract engine oil. Install oil drain plug.

Note. Oil drain plug is installed without seal. Check for cleanliness.

1. Fill motor oil. --> «Engine oil: Fill»(/audi/s6/c6-2006-2008/remont/procedures/#maintenance-procedures__engine-oil-fill)

Scheme 46

1. Remove oil filter cover with a socket wrench SW 24 - arrow -.
2. Clean sealing surfaces oil filter cover and at oil filter housing.

Scheme 47

1. Replace oil filter insert. - 1 -.

Note. Observe waste disposal regulations! Install new O-ring - 2 - and lubricate lightly. Engage new oil filter insert in oil filter cover. Install oil filter cover - 3 -. Install coolant reservoir. Remove noise insulation. --> Noise insulation, removing Open oil drain plug on oil pan or extract engine oil. Install oil drain plug.

Note. Install oil drain plug with new gasket. Check for cleanliness.

1. Fill motor oil. --> «Engine oil: Fill»(/audi/s6/c6-2006-2008/remont/procedures/#maintenance-procedures__engine-oil-fill)

10-cyl. gasoline engine (5.2 FSI)

1. Remove noise insulation --> «Noise insulation, removing»(/audi/s6/c6-2006-2008/remont/procedures/#maintenance-procedures__noise-insulation-removing)
2. Open oil drain plug and drain engine oil.
3. Install oil drain plug with new gasket.

Scheme 48

1. Remove rear engine cover - 2 - - arrows -.
2. Remove EVAP valve from bracket and lay aside.

Scheme 49

1. Secure EVAP line, permanent ventilation line and sound pipe line at front with cable ties.

Scheme 50

1. Loosen cover - 1 - AF 32.
2. Remove filter component - 3 -.
3. Replace O-rings - 2 - and - 4 - and filter element - 3 -.
4. Fill with engine oil, specifications Fluid Capacity Chart

Note. Observe waste disposal regulations!

Engine oil: Fill

Note. Please follow specified engine oil capacity and oil standards in the ELSA maintenance table.

Engines with turbocharger

1. After the engine oil and oil filter have been replaced, observe the following when first starting the engine

1. As long as the oil pressure warning light in the instrument panel insert flashes, the engine is only to run at idle. Do not touch the accelerator pedal! Bumping the accelerator pedal can damage the turbocharger or destroy it completely
2. The full oil pressure achieved and the engine can be accelerated only when the warning light extinguishes

All

1. Check engine oil level --> «Engine: Oil level, checking»(/audi/s6/c6-2006-2008/remont/procedures/#maintenance-procedures__engine-oil-level-checking) .

Engine: Oil level, checking

Note. Oil temperature at least 140 ° F (60 ° C). Vehicle must be in level position. After stopping engine, wait a few minutes to allow oil to flow back into oil pan. Pull out oil dipstick and wipe with clean rag. Replace dipstick and push down to stop. Pull out dipstick again and read oil level.

Scheme 51

Markings on dipstick

Scheme 52

Note. Oil level must not exceed - a - mark on dipstick.

Navigation: Eject button, unlocking

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided functions
3. Go to - function/component selection
4. Service work

1. J401 - Navigation, Eject button, locking/unlocking
2. Now follow guided program

Interior monitoring, checking function

The function of the ultra-sonic interior monitoring is checked as follows

1. Open side window approx. 10 cm (4 in.).
2. Lock vehicle to set alarm and activate interior monitoring.
3. Wait 30 seconds until indicator light blinks with steady frequency (f = 0.5 Hz, or once every two seconds).
4. Reach through window opening and place hand directly on sensor cover.

If interior monitoring is OK, the alarm will be triggered.

1. Unlock vehicle to switch alarm off.
2. Perform testing on all sensors in sequence.
3. Erase DTC memory. Erase DTC memory. Guided Fault Finding - GFF

Perform test drive

To what extent the following can be checked is dependent upon the vehicle equipment and local conditions (urban/country).

1. The following should be checked by means of a road test

1. Engine: Output, misfiring, idling speed, acceleration
2. Clutch: Pulling away, pedal pressure, odors
3. Gear selection: Ease of operation, shift lever position
4. Automatic transmission: Selector lever position, shift lock / ignition key removal lock, shift behavior, instrument panel insert display

1. Foot and parking brake: Function, free-play and action, one-sided pull, chatter, squealing.
2. ABS function: When braking with activated ABS, the brake pedal must pulse noticeably.
3. Steering: Function, steering free play, steering wheel centralized when wheels are in straight ahead position
4. Tilt/slide sunroof: Function

1. Cruise Control System (CCS): Function
2. MMI function (radio, navigation, etc.)
3. Driver Information System (DIS): Functions
4. A/C system: Function

1. Vehicle: Moving off line when traveling straight ahead (level road)
2. Imbalance: Wheels, drive shafts
3. Wheel bearings: Noises
4. Engine: Hot starting behavior

Scheme 53

1. The removal hook - A - for removing the center cap is located in the vehicles tool kit.

Wheel bolts

The adapter to loosen/tighten the anti-theft wheel bolts is located with the vehicle tool kit.

Note. Be sure to tighten wheel bolts in diagonal sequence to the following specified torque

1. Place adapter with vehicle tool kit after completing work.

Correct wheel installation

1. When installing wheels, you must observe the following points to ensure wheels fit securely

1. Always tighten wheel bolts to the specified torque so the wheel bolt seats in rim are not deformed.
2. When installing a wheel, do not tighten first wheel bolt immediately (for example, with an impact wrench). This would prevent other bolts from centering rim properly when they are screwed in. Rim could then become loose, even if tightened to specified torque.
3. Before installing wheels, check for rust/corrosion in wheel bolt seats and contact surfaces between rims and hubs, removing if necessary. Otherwise, the wheel bolts can lose tension after installation and the rim can come loose.

Windshield washer system: Checking nozzle setting, adjusting nozzles if necessary

Special tools, testers and auxiliary items required

Scheme 54

1. Windshield Washer Aiming Tool T10127 equipped with Tip 3125/5A

Scheme 55

Windshield spray jet setting

Note. The adjustment dimensions give values for a driving vehicle, that is, when parked, the spray pattern will shift slightly. Mark the 4 points on the windshield with a water-soluble pen: Dimension - a - = 255 mm. Dimension - b - = 510 mm. Dimension - c - = 530 mm. Dimension - d - = 430 mm. Locate the points of the individual spray jets with the Windshield Washer Aiming Tool T10127.

Rear window spray jet setting

Scheme 56

1. Adjust spray jets with Washer Jet Adjuster T10127 so fluid sprays over the wiper onto the rear window at the places shown.

1. Dimension - a - = approx. 122 mm
2. Dimension - b - = approx. 330 mm
3. Dimension - c - = approx. 5 mm

Headlamp washer system: Check spray jet setting

Headlamp cleaner spray jets are set at the factory and do not need to be adjusted.

Headlamps: Check setting, adjust if necessary

The following test and adjustment instructions are applicable to all countries. National guidelines or regulations of the country must be observed.

Check and adjustment conditions

1. Tire pressure OK.
2. Lenses must not be damaged or dirty.
3. Reflectors and bulbs OK.
4. Vehicle must be properly loaded.

Load: Vehicle must be loaded with one person on the drivers seat, weighing 75 kg, otherwise vehicle must be empty (curb weight).

The curb weight is the weight of the vehicle ready for operation with completely filled fuel tank (at least 90%), including the weight of all equipment items carried for operation (e.g. spare wheel, tool, vehicle jack, fire extinguisher etc.).

If the fuel tank is not at least 90% full, adjust the weight as follows

1. Read fuel level from fuel gauge. Calculate additional weight needed using the following table. Place extra weight in luggage compartment.

Tank filling table

Example

If tank is filled halfway on a front wheel drive vehicle, you must place an additional 35 kg of weight in the luggage compartment.

Note. For additional weight use containers filled with water. A container filled with 5 liters of water weighs approx. 5kg.

Vehicle must be rolled for several meters or the front and rear suspension must be bounced several times so that the springs settle.

The handbrake must be released to avoid tension in suspension.

1. Vehicle and headlamp adjuster must be on a level surface Operating instructions for headlamp adjuster.
2. Vehicle and headlamp adjuster must be aligned.

Ensure headlight adjuster is about 30 cm in front of headlight.

1. Inclination must be set.

Inclination measurements are stamped in "%" at top of headlamp. The headlamps must be adjusted according to these measurements. Percentage information is based on a projection distance of 10 meters. For example, with an inclination measurement of 1.0% (on vehicles with headlamp range adjuster), this converts to 10 cm.

Vehicles with manual headlight range adjuster

1. The headlight range adjuster rotary knob must be in basic setting - 0 -.

Vehicles with automatic Headlamp Range Control

Note. To check/adjust headlights, they must always be placed in the basic setting with the VAS 5051. Perform basic setting with the Vehicle Diagnosis, Testing and Information System VAS 5051

1. Connect Vehicle Diagnosis, Testing and Information System VAS 5051 using the diagnostic cable VAS 5051/5 with ignition switched off.
2. Switch ignition on.
3. Select "Guided Fault Finding"

Enter vehicle information; all control modules are interrogated.

1. Press the following selections in the order shown

1. Go To
2. Functions and component selection
3. Body
4. Electrical Equipment

1. 01 - On Board Diagnostic (OBD) capable systems
2. 55-Dynamic Headlamp Range Control
3. J 431-Dynamic Headlamp Range Control, Functions
4. J 431-Headlamp Range Control Module, basic setting

1. Press button

Follow the steps of the tester and confirm the entry until the following text appears

J 431-Headlamp Range Control Module, basic setting

1. Press button
2. Follow test sequence

Headlamps, checking adjustment (with new test screen without 15 ° setting line)

1. Observe the following

Scheme 57

1. With dipped beam switched on, horizontal light-dark border must contact hyphenated line - 1 - of test surface
2. Break-away point - 2 - between left horizontal part and rising part on right of light-dark border must run vertically through central point - 3 -. Bright core of light beam must be right of vertical line

Note. To make it easier to find break-away point - 2 - cover and uncover left half of headlamp (as viewed when looking forward) a few times. Next, check low beam again. After correct adjustment of dipped beams the center point of the main beam must lie on the center mark - 3 -.

Scheme 58

1. For the previous test screen with 15 ° -setting line, adjust as for new test screen. To avoid incorrect settings, ignore 15 ° setting line.

Scheme 59

Main headlight (left)

Left headlight adjustment screws

Placement on right headlight is similar.

1. To adjust height, turn adjustment screws - 1 - and - 2 - with same number of revolutions.
2. To adjust laterally, turn only adjustment screw - 2 -.

Vehicles with automatic Headlamp Range Control

1. Perform function program J431 - Headlamp Range Control Module, basic setting, to end.

Fog lights in main headlights

Note. The adjustment of fog lights is performed automatically when adjusting headlights.

Fog lights in bumper

Inclination figures

1. Fog lights 20 cm

Scheme 60

1. Unclip retaining tabs - arrows - and remove cover on lower part of bumper.

Scheme 61

1. To adjust the lamp range, turn the adjustment screw - arrow -. Lateral adjustment is not possible.

Other additional headlamps

Accessory auxiliary headlamp systems must be checked and adjusted according to the guidelines valid for them.

Windshield/headlamp wiper system: Filling with fluid

1. Fill washer fluid fully.

Note. Always add a neutral pH window cleaner to washer fluid (freeze protection in winter).

Windshield wiper blades: Park position and checking for damage

Front windshield work sequence

1. Switch ignition on.
2. Activate mist wipe and let wiper arm travel to end position.
3. Switch ignition off and remove ignition key.

Scheme 62

1. Pry cover off wiper arm with screwdriver.
2. Loosen hex head nuts - arrows - a few turns.
3. Loosen wiper arm by tilting wiper axis slightly, remove hex head nuts and remove wiper arm.
4. Switch ignition on.

1. Activate mist wipe and let wiper motor run to end position.

Note. Every second time it is switched off, the wiper motor runs to an under-stroke parked position, that ensures that the lip of the wiper blade is flipped to the other direction. To do this, wiper motor runs down over end position and then back up a bit. This under-stroke parked position must not be used for aligning the wiper crank. You must use the position where the wiper motor runs directly to end position without under-stroke. Activate mist wipe again, if necessary. Switch ignition off.

Scheme 63

1. Position wiper arm with wiper blade attached on wiper axle and adjust wiper arm on windshield as follows

1. Dimension - a - = 5 to 15 mm.
2. Dimension - b - = 30 to 40 mm.

Note. The dimensions give the distance of the wiper blade point to the black cowl panel grille on lower edge of windshield. Tighten wiper arm nuts. Switch ignition on. Activate mist wipe and let wiper arm travel to end position. Switch ignition off. Check wiper arm adjustment again, correct if necessary.

Tightening torque

Rear window work sequence

1. Let wiper motor run to end position.
2. Switch ignition off and remove ignition key.

Scheme 64

1. Carefully spread cover - arrows - and lift.

Scheme 65

1. Carefully remove spray jets - 2 -.
2. Loosen hex head nuts - 1 - a few turns.
3. Loosen wiper arm by tilting wiper axle slightly.

Scheme 66

1. Place wiper blade on rear window and adjust as follows

1. Dimension a = 27 mm

Note. Dimension gives distance of wiper blade point to lower edge of window. Tighten wiper arm nut to 12 Nm. Activate wiper. Adjust wiper arm again, if necessary, and tighten nut. Check spray jet adjustment --> Windshield washer system: Checking nozzle setting, adjusting nozzles if necessary .

Headlights: Aiming using Hella Universal Beamsetter IV

Service

Align vehicle headlamps using the VAS 5107 (Hella Universal Beamsetter IV) and the following procedure

Additional instructions and diagrams Instruction Manual for the Hella Beamsetter Series IV

1. Position vehicle on a flat floor surface that meets the following (ISO 10640) specifications

Scheme 67

1. 0.5mm or less slant from front wheel to back wheel of the Beamsetter - A -.
2. 1mm or less slant per meter for the length of the vehicle - B -.

1. Clean headlight lenses.
2. Adjust vehicle tire pressure to specifications.

Have a second technician sit in the drivers seat while aligning the headlights.

1. Bounce front and rear of vehicle up and down several times to settle vehicle suspension.

Setting low beam alignment of drivers side headlight

1. Move Beamsetter into position in front of the vehicle so it is aligned with the vehicle and Beamsetter box is 30 to 70cm (12 to 28 in.) from the drivers side headlight.
2. Switch headlights ON in low beam position.
3. Align Beamsetter box so it is centered on the headlight (align vertically then horizontally).

Note. Use the arrows on the Beamsetter box as a guide. You may want to use a straight edge or tape measure, because alignment must be within 3cm (1.2 in.) of the center of the headlight. Without moving the Beamsetter, slide Broad-band sight toward center of vehicle (Broad-band sight can also be moved up and down for a better position).

Use Broad-band sight to make final alignment of Beamsetter box to vehicle by

1. Loosening hand-wheel that locks column in place.
2. Sighting down through the slit in the Broad-band sight and rotating Beamsetter box and column until two similar points on vehicle are aligned

Note. Try using corners of the headlight housings or two screws that are the same height and as far apart as possible on the vehicle. Carefully tighten hand wheel without changing Beamsetter position. Set Inclination to 1.0 %. Set Beamsetter "Scaled wheel" to the proper low beam inclination %. Adjust height (vertical) alignment first. Turn headlight height adjuster screw to align the upper edge of the flat portion of the beam with the center horizontal line of the grid on the Beamsetter pattern screen.

Note. VOL is the correct beam pattern for both right and left headlights.

Scheme 68

1. Adjust lateral (horizontal) alignment of drivers side headlight so that the peak (highest point) of the headlight beam pattern aligns with the right edge of the target box of the grid on the pattern screen (it should match the VOL pattern shown on the Beamsetter box).

Note. If the height alignment changed, readjust.

Checking drivers side headlight high beam alignment

1. Switch headlights ON in high beam position.
2. Realign Beamsetter box with the high beam headlight if necessary.
3. Set Beamsetter "Scaled wheel" to 0%.

Scheme 69

1. Cover low beam lamp (use hand or small piece of cardboard) and make sure the "hot spot" of high beam pattern is centered on the square target box of the pattern screen.

Note. High beam pattern is built into the reflector design and cannot be adjusted separately.

If high beam pattern is way out of adjustment

1. Inspect for reflector damage.
2. Replace reflector if needed.

Note. Always align headlight in the low beam position.

Aligning fog lamp

1. Switch fog lamps ON.
2. Align Beamsetter box with fog lamp (make sure it is between 30 and 70cm from the fog lamp lens).
3. Set Beamsetter scaled wheel to 1.4%.

Scheme 70

Adjust fog lamp so the top of the beam pattern aligns with the centerline of the target grid on the beam pattern screen.

Passengers side headlight, alignment

1. Move Beamsetter to the passenger side of the vehicle and follow the same procedures to align the Beamsetter box to the headlamp.
2. Align headlight low beam, check high beam and align fog lamp.

Note. Make sure to reset the Beamsetter "Scaled wheel" to the proper setting each time you change from low beam to high beam or to fog lamp. Make sure that headlights and vehicle body are clean and free of fingerprints.

Scheme 71

Removing

1. Bring wiper into service position Owners manual.
2. Lift wiper arm off of windshield.
3. Press retaining clips together - arrow 1 -.
4. Slide wiper blade off wiper arm - arrow 2 -.

1. Remove wiper blade.

Scheme 72

Installing

Installation is reverse of removal, but note the following

1. Guide wiper blade - 2 - parallel onto wiper arm - 1 - - arrow -. Ensure wiper arm sits completely in guide.

Door locks, lock buttons and child safety locks: Checking

1. Lock and unlock drivers and front passenger doors.

The lock buttons must move up when unlocking and down when locking each door

1. Press lock buttons down on front passenger and rear doors and close doors.

1. Doors must be locked.
2. It must not be possible to press down the lock button on the drivers door while the door is open.

Child safety locks (rear doors)

1. Move lever on door lock down (in direction of arrow on door lock).

The door lever on the inside must be inoperative while the lock button is in the unlocked position.

Note. If the door locks do not operate freely, they must be removed, cleaned and lubricated.

Snow screen, cleaning

1. Remove air filter intake duct.

Scheme 73

1. Remove snow screen - 1 - and clean with compressed air.
2. Remove stubborn dirt with a blunt object.

Note. Replace snow screen if damaged.

Service display, resetting

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Fault Finding or Guided Functions
3. Go to - function/component selection
4. Service work

1. Combination Processor, reset WIV
2. Now follow guided program

Note. Please follow guided program function description WIV = Wartungsintervall - Verlangerung (Maintenance Interval Extension)

Oil quality, adapting

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Fault Finding or Guided Functions
3. Go to - function/component selection
4. Service work

1. Combination Processor, changing oil quality
2. Now follow guided program

Note. It is necessary to change oil quality if changed between inspection or LongLife Service. Inspection Service = Oil quality 1 LongLife Service = Oil quality 2 WIV = Wartungsintervall - Verlangerung (Maintenance Interval Extension) Please follow guided program function description

Maximum values, adapting

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Fault Finding or Guided Functions
3. Go to - function/component selection
4. Service work

1. Combination Processor, adjusting maximum WIV value
2. Now follow guided program

Fixed interval maximum values

Note. WIV = Wartungsintervall - Verlangerung (Maintenance Interval Extension) Please follow guided program function description

Adapting language

1. Switch on MMI.
2. Follow these menu steps in sequential order.

1. Car
2. Setup
3. Settings
4. Menu language

1. Now select proper language with rotary button.
2. Leave mode with "Return " button.

Dust and pollen filter: Replacing

Note. The dust and pollen filter consists of two identically constructed filter elements. When installing, observe correct installation position (filter flow-through direction is indicated with arrows). Clean plenum chamber after replacing dust and pollen filter. Pay special attention to area under air intake unit. Clean dust and pollen filter installation duct in air conditioner before installing new filter. There are different versions of the dust and pollen filter and both filters have different air resistance. Use the correct version. The control curve for controlling fresh air fan V2 in the operating and display unit, the Climatronic Control Module J255 , is adapted accordingly. The filter insert without active charcoal insert (AKF filter insert) is installed on vehicles with an operating and display unit, Climatronic Control Module J255 "base" version ETKA. No Air Quality Sensors G238 are installed in these vehicles. The filter insert with active charcoal insert (AKF filter insert) is installed on vehicles with an operating and display unit, Climatronic Control Module J255 "comfort" version ETKA. Air Quality Sensors G238 are installed in these vehicles.

Removing

Note. Depending on vehicle equipment, it may be necessary on certain versions (with certain special features, such as taxis or police cars) to remove the glove compartment (eventually, certain other additional control modules installed in this area will have to be removed. On vehicles with right side steering, the dust and pollen filter must be removed towards the left from the air conditioning unit, in contrast to vehicles with left side steering. However, the rest of the work procedure is the same.

Scheme 74

1. Remove lid - A - from lower glove compartment cover - B -.

Note. The lid - A - is held by 4 latches on bottom glove compartment cover - B -. These latches may be difficult to release. Therefore, be careful that you do not damage the bottom glove compartment cover - B - when removing. Cover passenger-side floor mat in area under air conditioning unit duct for dust and pollen filter with paper.

Scheme 75

1. Loosen catches - B - and remove dust and pollen filter cover - A - from air conditioning unit.

Scheme 76

1. Remove first part of dust and pollen filter - A - from air conditioning unit.

Note. Two identically constructed filter inserts are installed one on top of the other in the air conditioning unit. Grasp inside air conditioning unit duct - C - and pull second part of dust and pollen filter - B - (at tab) down and then out of duct.

Installing

1. Clean air conditioning unit installation duct - C - for dust and pollen filter of leaves, dust and other contaminants with a commercially available vacuum and the Suction Nozzle with Brush VAS 6288..

Note. Dust and other contaminants can adhere to the air conditioning unit. A brush is attached to the Suction Nozzle VAS 6288. to remove these contaminants. Place first part - B - of dust and pollen filter in air conditioning unit duct - C - and slide into upper installation position. Observe flow-through direction (arrows on filter - D - point to evaporator). Hold the first installed part of the dust and pollen filter - B - in upper installation position if necessary, for example, with a steel ruler. slide second part of dust and pollen filter - A - (under first part installed - B - ) in air conditioning unit duct. Observe flow-through direction (arrows on filter - D - point to evaporator).

1. Check seal position - C - in groove - D -.
2. Install cover - A -. Ensure proper seating in mount - E - and latch - B -.
3. Install the rest o the parts removed in reverse order of removal.

Removing front axle bumper protection devices

1. Release front axle (for example, put vehicle on lift)

Scheme 77

1. Remove protection devices - A -.

Note. It is not necessary to remove the wheels Remove tag on rearview mirror

Removing rear axle bumper protection devices

1. Release rear axle (for example, put vehicle on lift)

Scheme 78

1. Remove protection devices - 1 -.

Note. It is not necessary to remove the wheels Remove tag on rearview mirror

Scheme 79

1. Lubricate door arrester only on lubrication places indicated - arrows -.

1. Lubricant: "G 052 778 A2"

1. Lubricate lock cylinder.

1. Lubricant: "G 052 778 A2"

Underbody, visual inspection for damage

1. When performing visual inspection, check for damage to underbody, wheel housings and rocker panels.
2. Check for loose wires and securing pieces.

Transport mode, deactivating with Vehicle Diagnosis, Testing and Information System VAS 5051/5052

Note. Car body may lower. Air suspension transport mode is for loading vehicles, for example (on train, ship, truck, airplane, etc.).

Deactivate air suspension transport mode using guided fault finding or guided functions.

1. Follow these steps in sequential order.

1. Connect VAS 5051/5052
2. Guided Fault Finding or Guided Functions
3. Go to - function/component selection
4. Service work

1. Activate or deactivate air suspension transport mode
2. Now follow guided program

Scheme 80

1. Remove plenum chamber cover gasket - 1 -.
2. Remove plenum chamber cover - 2 - and - 3 -.

Plenum chamber water drain, checking and cleaning

Note. Visually inspect plenum chamber for contaminants, for example, leaves. If there are contaminants, clean water drain and plenum chamber.

> - 87 - AIR CONDITIONING

Winter tires from factory

Note. On vehicles that were delivered from factory with winter tires, check for correct pressure during delivery inspection. The excessive speed warning sticker should be placed in drivers field of vision.

Timing belt: Replacing

6-cylinder engine --> - 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK

Clock, setting

Note. See MMI owners manual

Spark plugs: Replacing

Special tools, testers and auxiliary items required

Scheme 81

1. Spark plug wrench 3122B

Scheme 82

1. Ignition Coil Puller T40039

Note. Plug designation --> - 28 - IGNITION SYSTEM for 3.2 V6 4V FUEL INJECTION IGNITION, ENGINE CODE(S): BKH 28 - IGNITION/GLOW PLUG SYSTEM for 4.2 LITER 8-CYL. 5V ENGINE MECHANICAL ENGINE CODE(S): BAT, BNK 28 - IGNITION/GLOW PLUG SYSTEM for 4.2 LITER V8 4V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BVJ 28 IGNITION/GLOW PLUG SYSTEM for 4.2 LITER V8 5V GENERIC SCAN TOOL, ENGINE CODE(S): BNK 28 - IGNITION/GLOW PLUG SYSTEM for 5.2 LITER 10-CYL. 4V GENERIC SCAN TOOL, ENGINE CODE(S): BXA Observe waste disposal regulations!

V8 and V6 gasoline engines

1. Switch ignition off.

Right cylinder bank

1. Remove air filter. --> «Air cleaner: Clean air filter housing and replace filter»(/audi/s6/c6-2006-2008/remont/procedures/#maintenance-procedures__air-cleaner-clean-air-filter-housing)

Scheme 83

1. Remove both bolts - 1 -.
2. Push connector - 2 - toward ignition coil, press on catch with hand and remove connector.
3. Remove ignition coils - 3 - from spark plugs with Ignition Coil Puller T40039.
4. Remove spark plugs with Spark Plug Removal Tool 3122 B.

1. Install new spark plugs.

Note. Push ignition coils by hand into intended resources in cylinder head cover.

Left cylinder bank

1. Remove coolant reservoir and lay aside.

Scheme 84

1. Remove both bolts - 1 -.
2. Push connector - 2 - toward ignition coil, press on catch with hand and remove connector.
3. Remove ignition coils - 3 - from spark plugs with Ignition Coil Puller T40039.
4. Remove spark plugs with Spark Plug Removal Tool 3122 B.

1. Install new spark plugs.

Note. Push ignition coils by hand into intended resources in cylinder head cover.

V10 gasoline engines

Special tools, testers and auxiliary items required

Scheme 85

1. Puller T40039

1. Remove rear engine cover - 2 -.

Removing cylinder bank 1 (right)

1. Remove bolts - arrows - and remove left air duct.

Scheme 86

1. Open hose clamps - arrows - and remove right air guide hose.
2. Disconnect electrical connector - 1 - on Engine Coolant Level (ECL) Warning Switch F66 at bottom of coolant reservoir.

Scheme 87

1. Remove bolts - 2 - and - 3 - and lay aside coolant reservoir with connected coolant hoses - 4 - and - 5 -.

Scheme 88

1. Remove bolts - 1 - and - 2 -.

Scheme 89

1. Pull ignition coils about 30 mm out of spark plug shaft with Puller T40039.
2. Release electrical connectors and remove them evenly from ignition coils.
3. Remove spark plugs using spark plug wrench 3122B.
4. Install new spark plugs.

Removing cylinder bank 2 (left)

1. Remove bolts - arrows - and remove left air duct.

Scheme 90

1. Open hose clamps - arrows - and remove left air guide hose.

Scheme 91

1. Remove bolts - 1 - and - 3 -.

1. Pull ignition coils about 30 mm out of spark plug shaft with Puller T40039.
2. Release electrical connectors and remove them evenly from ignition coils.
3. Remove spark plugs using spark plug wrench 3122B.
4. Install new spark plugs.

Installing ignition coils

1. Loosely place all ignition coils in spark plug shaft.
2. Align ignition coils to connectors and place all connectors evenly on ignition coils.
3. Press ignition coils evenly by hand onto spark plugs (do not use a hammer).

Tightening torque

Type plate, Vehicle Identification Number (VIN), engine code

Meaning of Vehicle Identification Number (VIN)

Vehicle data sticker

The vehicle data sticker is in the customers service schedule and in the vehicle in the spare wheel recess or on the luggage compartment floor.

Scheme 92

Sticker contains the following vehicle data

Engine code and engine identification

Note. The "engine code" is on the vehicle data sticker in the service schedule and in the spare wheel recess or on the luggage compartment floor.

Scheme 93

1. V6 gasoline engine

Scheme 94

1. 8-cyl. gasoline engine

Scheme 95

1. 10-cyl. gasoline engine

Suspension blocks, installing

If pressure is lost in the air suspension shock absorbers, the vehicle does not have sufficient ground clearance.

The vehicle must not be moved in this condition.

To drive onto a car transporter or a lift, for example, suspension blocks must be installed.

This increases the ground clearance.

Special tools, testers and auxiliary items required

Scheme 96

1. Drive-on ramp T40081

Scheme 97

1. Suspension block set T40082
2. Stand (commercially available)
3. Onboard vehicle jack
4. Floor jack (commercially available)

Installing suspension blocks on front axle

Workshop arrangement

1. Bring front wheels into straight position.

Scheme 98

1. Drive vehicle front axle backwards on the Drive-on ramps T40081.
2. Engage 1st gear or place selector lever in P position and engage handbrake.

Scheme 99

1. Lift vehicle with Onboard vehicle jack / Floor jack until wheel is clear of ground.

Scheme 100

Stand

1. Remove drive-on ramp.

Scheme 101

1. Insert supporting plate with open retaining bracket - 1 - in wheel bearing housing.
2. Close the retaining bracket - 1 - and secure with screw - 2 -.
3. Place rubber block on supporting plate.

Scheme 102

1. Ensure writing on rubber block points toward inside of wheel housing and that it is aligned flush with supporting plate.
2. Remove stand.
3. Let vehicle down slowly.

Note. Check secure fit of supporting plate after installing. If there is not enough clearance after inserting rubber block, push the wheel down. When lowering vehicle, make sure rubber block is not crooked and that it lies on the suspension strut mount.

Installing suspension blocks on rear axle

Workshop arrangement

Scheme 103

1. Drive vehicle rear axle onto Drive-on ramp T40081.
2. Engage 1st gear or place selector lever in P position and engage handbrake.

1. Lift vehicle with Onboard vehicle jack / Floor jack until wheel is clear of ground.

Stand

1. Remove drive-on ramp.

Scheme 104

1. Push rubber buffer down - arrow -.
2. First insert upper - 1 - and then lower distance ring - 2 - until you feel them engage.
3. Remove stand.
4. Let vehicle down slowly.

Note. If there is not enough clearance after inserting distance ring, push the wheel down. When lowering vehicle, make sure distance ring is not crooked.

Vehicle, lifting

Vehicle lifting mode on vehicle with air suspension

Note. Before lifting vehicle with vehicle jack or lift, vehicle lifting mode must be activated so that the automatic air suspension regulating process does not make lifting with vehicle jack or lift more difficult. Vehicle lifting mode automatically switches off when vehicle speed exceeds 15 km/h. When vehicle lifting mode is activated, the indicator light in the instrument cluster comes on.

Switching on

1. Switch ignition on.
2. Press "CAR" function key. Main menu "adaptive air suspension" appears.
3. Press "SETUP" function key. "adaptive air suspension" menu appears.
4. Turn control knob to desire mode and select "ON".

Switching off

1. Switch ignition on.
2. Press "CAR" function key. Main menu "adaptive air suspension" appears.
3. Press "SETUP" function key. "adaptive air suspension" menu appears.
4. Turn control knob to "Vehicle lifting mode" and select "OFF" to switch of vehicle lifting mode.

Floor jack

Note. On vehicles with air suspension, vehicle lifting mode must be reset before lifting with floor jack to prevent unexpected air suspension regulation measures.

Always use a suitable rubber or wooden block between the jack and the vehicle.

A floor jack must be attached only at the mounting points depicted in the illustration.

Do not lift the vehicle at the engine oil pan, transmission, or on front or rear axles as serious damage may result.

Lifting points for lifting platform and floor jack

Scheme 105

Front and rear

At plastic recesses on vehicle underbody marked in red.

Tow starting/towing

Note. If air suspension shock absorbers in one axle lose pressure completely, the vehicle does not have enough ground clearance. The vehicle must not be moved in this condition. To drive onto a car transporter or a lift, for example, suspension blocks must be installed. The vehicle cannot be towed when suspensions blocks are installed.

Front towing eye

1. Attach tow rope or bar only at following eye

1. Remove cover from below.
2. Remove towing eye from vehicle tool kit.

Scheme 106

1. Screw in towing eye - arrow - until stop and tighten eye with wheel bolt wrench.

Note. Remove towing eye after use and return to vehicle tool kit storage compartment. Towing eye must always be in vehicle.

Rear towing eye

Sedan

1. Attach tow rope or bar only at following eye

Scheme 107

1. Remove cover from above.

Avant

Scheme 108

1. Remove plug.

Note. The tow-rope should be able to stretch to reduce the risk of damage to both vehicles. It is advisable to use synthetic fiber ropes or ropes of similar elastic material only. However, it is safer to use a tow-bar! Avoid excessive towing effort and do not jerk. During towing operations on unsurfaced roads there is always a danger that the attachment points will be overstressed and damaged. Vehicle towing should only be done if it is not possible to start the engine with the starting assist cable.

If the vehicle must ever tow or be towed, observe the following

1. Regulations concerning towing must be observed.
2. Both drivers must be familiar with the specifics of towing procedures. Inexperienced drivers should not attempt to tow start or tow.
3. When using a tow rope the driver of the towing vehicle must engage the clutch very gently when moving off and changing gear.
4. The driver of the vehicle being towed must ensure that the tow rope is always taut.

1. The emergency lights must be switched on both vehicles - unless local regulations differ.
2. The ignition must be switched on, so that the steering wheel is not locked and the turn signals, horn, windshield wipers, and windshield washer system can be operated.
3. Since the brake booster only works with the engine running, the brake pedal must be stepped on with substantially more force when the engine is switched off.
4. With the engine switched off, the power steering also does not work, increasing the amount of steering effort.

1. Without lubricants in the manual transmission and/or automatic transmissions the car may only be towed with raised drive wheels.

When towing vehicles with manual transmission, observe the following

1. Before tow starting, push in clutch pedal and hold, and select gear 2 or 3.
2. Switch ignition on.
3. When both vehicles are moving, release clutch pedal.
4. As soon as engine starts, depress clutch and move gear stick into neutral to avoid running into the towing vehicle.

Note. Vehicles with catalytic converter (gasoline engine only) must not be started when the catalytic converter is at operating temperature and pulling the vehicle over a longer distance of more than 50 m. Otherwise unburned fuel may pass into the catalytic converter and cause damage. Tow starting vehicles with an automatic transmission is for technical reasons not possible.

When towing vehicles with front wheel drive and automatic transmission, observe the following

1. Selector lever must be in the "N" position.
2. Do not tow vehicle faster than 50 km/h (30 mph).
3. Do not tow further than 50 km (30 miles).

For longer distances, the front end of the vehicle must be raised.

Reason: When the engine is not running the transmission oil pump is not working and the transmission is not adequately lubricated for high speeds or long distances.

Using a breakdown vehicle, the vehicle may only be towed suspended at the front.

Reason: If given a rear suspended tow, the drive shafts turn backward. This would cause the planetary gears in the automatic transmission to achieve such high RPM that the transmission would be heavily damaged within a very short time.

When towing vehicles with all wheel drive and manual transmission, also observe the following

1. Do not tow vehicle faster than 50 km/h (30 mph).
2. Do not tow further than 50 km (30 miles).

Using a breakdown vehicle the vehicle may be towed suspended at front or rear.

Note. If normal towing of the vehicle is not possible, the vehicle must be transported with a special transporter or trailer. This is also valid for distances greater than 50 km (30 miles).

When towing vehicles with all wheel drive and automatic transmission, also observe the following

1. Selector lever must be in the "N" position.
2. Do not tow vehicle faster than 50 km/h (30 mph).
3. Do not tow further than 50 km (30 miles).

The vehicle must not be towed by a tow truck with front or rear axle raised.

Note. If normal towing of the vehicle is not possible, the vehicle must be transported with a special transporter or trailer.

Vehicle checks within inspection and service framework

For vehicle checks, we recommend interactive acceptance VAS 5000 and performance test stand V.A.G 1858.

Brake check

Information for checking brakes on front and all wheel drive vehicles is in the corresponding brake system repair information.

Performance check

Perform performance check on performance test stand recommended by Audi. The corresponding correction factors for automatic transmissions and all wheel drive are provided in these test stands. Vehicles with all wheel drive may only be tested on a four-wheel performance test stand. The four-wheel performance test stand V.A.G 1858 has movable rollers in order to be able to test vehicles with different axle spacing.

Tachometer check

With the tachometer test, the vehicle wheels are driven. Vehicles with all wheel drive may only be tested on a four-wheel test stand.

Shock absorber check

Information on testing shock absorbers can be found in the suspension repair information.

See also:
• 39 - FINAL DRIVE, DIFFERENTIAL
• 39 FINAL DRIVE, DIFFERENTIAL
• 39 - FINAL DRIVE, DIFFERENTIAL
• 27 - STARTER, GENERATOR, CRUISE CONTROL
• 68 - INTERIOR EQUIPMENT
• 87 - AIR CONDITIONING
• 28 - IGNITION/GLOW PLUG SYSTEM
• Snow screen, cleaning
• Noise insulation, removing
• Engine oil: Fill
• Engine: Oil level, checking
• Windshield washer system: Checking nozzle setting, adjusting nozzles if necessary
• Air cleaner: Clean air filter housing and replace filter