Audi A6 Quattro 2008 Manual

Maintenance

Maintenance Procedures

01 - MAINTENANCE

ENGINE OVERVIEW

Gasoline engines

NOTE: 

Some engines listed below are for European models.

Engine code BPJ BDW AUK BBJ BDX BAT BVJ BXA

Emissions

category EU IV EU IV EU IV EU IV EU IV EU IV EU IV EU IV

No. of cylinders 4 6 6 6 6 8 8 10

Displacement L 2.0 2.4 3.2 3.0 2.8 4.2 4.2 5.2

Output

kW at

RPM

125/

4300-

6000

130/

5800 188/ 6000-

7200 160/

6200

154/

5500-

6800

246/

6500 257/

6800 320/

6800

Torque

Nm at

RPM

280/

1800-

4200 230/3000 330/3400 300/3200 280/

3000-

5000 410/3500 440/3500 540/3500

Bore mm 82.5 81.0 84.5 82.5 84.5 84.5 84.5 84.5

Stroke mm 92.8 77.4 92.8 93.0 82.4 92.8 92.8 92.8

Compression ratio 10.3 10.3 12.5 10.5 12.0 11.0 12.5 12.5

Engine code BPJ BDW AUK BBJ BDX BAT BVJ BXA

Fuel injection/Ignition TFSI MPI FSI MPI FSI MPI FSI FSI

RON min. 95 * See

footnote 95 * See

footnote 98 * See

footnote 95 * See

footnote 98 * See

footnote

Hydraulic valve lifter

function X X X X X X X X

On Board Diagnostic X X X X X X X X

Catalytic converter X X X X X X X X

Electronic throttle (E-

Gas) X X X X X X X X

Oxygen sensor control X X X X X X X X

Secondary air injection X X - X X X X X

Exhaust gas

recirculation --------

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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* 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

Turbocharger X - - - - - - -

Emissions test after

3.5,7,9, etc. years X X X X X X X X

Engine code BNA *

See

footnote

BLB BVG BRE BRF BPP BSG BMK BNG *

See

footnote

Emissions

category EU IV EU IV EU IV EU IV EU IV EU IV EU IV EU IV EU IV

No. of cylinders 4 4 4 4 4 6 6 6 6

Displacement L 2.0 2.0 2.0 2.0 2.0 2.7 2.7 3,0 3,0

Output

RPM 100/4000 103/4000 89/4000 103/4000 100/4000 132/4000120/4000 165/4000 155/4000

Torque

RPM

320/

1850-

2500

320/

1850-

2500

320/

1850-

2500

320/

1850-

2500

320/

1850-

2500

380/

1500-

3200

380/

1500-

3200

450/

1400-

3250

450/

1400-

3250

Bore mm 81.0 81.0 81.0 81.0 81.0 83,0 83,0 83,0 83,0

Stroke mm 95.5 95.5 95.5 95.5 95.5 83.1 83.1 91.4 91.4

Compression ratio 18:1 18:1 18.5:1 18.5:1 18.5:1 17.5:1 17.5:1 17:1 17:1

Fuel injection Pumpe-

Duse Pumpe-

Duse

Common

- Rail

Common

- Rail

Common

- Rail

Common

- Rail

DPF - - X X X optional - optional optional

CN,min. 51 51 51 51 51 51 51 51 51

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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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

DESCRIPTION OF WORK

ALL SWITCHES, ALL ELECTRICAL COMPONENTS, ALL DISPLAYS AND OTHER OPERATING

ELEMENTS: CHECKING FUNCTION

Check following:

Lighting, headlamps, fog lights, turn signals, hazard warning flashers, taillights, rear fog lights, backup

lights, brake lights, parking lights

Interior and reading lights (automatic shutoff on interior lights), illuminated storage compartment,

illuminated ashtray, luggage compartment lighting, illuminated ignition

Warning buzzer for lights and/or radio left on

All switches in console

MMI function (radio, navigation, etc.)

Driver Information System (DIS)

Instrument unit with all displays, meters and lights

Two-tone horn

Windshield/headlamp wipers, headlamp cleaning system

Cigarette lighter

Electrical exterior mirrors (heated, adjustable, foldable)

Electric windows

Electric tilt/slide sunroof

Sun shade

Central locking, remote control operation, comfort closing



Electrical seat, headrest, steering wheel and seatbelt height adjustment

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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Heated seats and rear seat bench, heated steering wheel

FINAL DRIVE (AUTOMATIC TRANSMISSION): CHECK OIL LEVEL, ADD OIL IF NECESSARY

Automatic transmission

--> -

39 - FINAL DRIVE, DIFFERENTIAL for 6 SPD. AUTOMATIC TRANSMISSION 09E ALL

WHEEL DRIVE

39 FINAL DRIVE - FRONT DIFFERENTIAL for AUTOMATIC TRANSMISSION 09L, ALL

WHEEL DRIVE

39 FINAL DRIVE, DIFFERENTIAL for CONTINUOUSLY VARIABLE TRANSMISSION (CVT)

01J

39 - FINAL DRIVE, DIFFERENTIAL for CONTINUOUSLY VARIABLE TRANSMISSION (CVT)

01J - INTERNAL COMPONENTS, SERVICING

Continuously Variable Transmission (CVT)

--> -

39 - FINAL DRIVE, DIFFERENTIAL for 6 SPD. AUTOMATIC TRANSMISSION 09E ALL

WHEEL DRIVE

39 FINAL DRIVE - FRONT DIFFERENTIAL for AUTOMATIC TRANSMISSION 09L, ALL

WHEEL DRIVE

39 FINAL DRIVE, DIFFERENTIAL for CONTINUOUSLY VARIABLE TRANSMISSION (CVT)

01J

39 - FINAL DRIVE, DIFFERENTIAL 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.



Follow these steps in sequential order.

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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Fig. 1: Connecting Data Link Connector (DLC)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connect VAS 5051/5052

Guided Fault Finding or Guided Functions

Go to - function/component selection

Service work

Energy manager, activate/deactivate transport mode

Now follow guided program

BATTERY LEVEL, READ OUT WITH GUIDED FAULT FINDING



Follow these steps in sequential order.

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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Fig. 2: Connecting Data Link Connector (DLC)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connect VAS 5051/5052

Guided functions

Select brand and model

Service work

A-battery, checking at delivery inspection

Follow the instructions.

BATTERY: CHECK ELECTROLYTE LEVEL

Battery with magic eye

Switch ignition off and remove ignition key.

Sedan:



Raise luggage compartment floor covering and secure.

NOTE: If tester display shows charge or replace battery, see --> - 27 - STARTER,

GENERATOR, CRUISE CONTROL

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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Fig. 3: Identifying Luggage Compartment Cargo Floor And Spare Wheel Cover

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Avant

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

Fig. 4: Identifying Battery Retaining Band

Courtesy of VOLKSWAGEN UNITED STATES, INC.

All:



If present, open battery retaining band

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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Fig. 5: Releasing Retaining Clips With A Screwdriver And Removing Battery Ground Cover

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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

Fig. 6: Locating Magic Eye

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The magic eye - arrow - gives information about electrolyte level and battery charge.

Three color displays are possible:

NOTE: 

Shown with formed insert removed in illustration.

Color display Battery level

Green Battery is sufficiently charged

Black No charge or charge too low

Colorless or

yellow Electrolyte has reached critical level, battery must be replaced! --> - 27 -

STARTER, GENERATOR, CRUISE CONTROL

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

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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Battery sealing plugs

On batteries with visible min and max markings, electrolyte level only needs to be checked visually.

Electrolyte level must be between min. and max. markings.

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.

The electrolyte level must meet the inner electrolyte level marking (plastic bar). This corresponds to the

outer max. mark.

TIRES: CHECKING CONDITION, WEAR PATTERN AND TREAD DEPTH AND ADJUSTING TIRE

PRESSURE.

Tires, checking

Delivery inspection

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

Inspection service

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.

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.

WARNING: If the electrolyte level is below them in. marking, the battery must be

replaced! --> - 27 - STARTER, GENERATOR, CRUISE CONTROL

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.

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

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2:27:39 AM Page 9

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

Check tires for scuffing, one sided wear, porous side walls, cuts and fractures.

Check tread depth.

Minimum depth: 1.6 mm

Fig. 7: Checking Tire Tread Depth

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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.

If the tread depth is approaching the legal minimum permissible depth, the customer must be informed.

Tire pressure, adjusting

WARNING: Report any damage to customer and mark repair order accordingly.

NOTE: This value may vary for individual countries due to different legislative

regulations.

2008 Audi A6 Quattro

Maintenance Maintenance Procedures

FIXYOURCAR

2:27:39 AM Page 10

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