00 - TECHNICAL DATA
SAFETY PRECAUTIONS
Safety Precautions
Note the following when working on the fuel system:
Procedures before opening high pressure fuel injection system --> Before Opening High Pressure Fuel
Injection System .
To prevent personal injury and damage to the injection and ignition system, observe the following:
The ignition must be switched off before connecting or disconnecting injection and ignition system
wiring or tester cables.
Only clean engine with ignition switched off.
If electrical connectors were disconnected, faults are saved in ECM:
Connect Vehicle Diagnosis, Testing and Information System VAS 5051B.
Start "Guided Functions" operating mode.
Generate readiness code in ECM.
Disconnect battery --> 27 - STARTER, GENERATOR, CRUISE CONTROL .
Note the following when working on the cooling system:
CAUTION: There is a risk of injury because the fuel is under very high pressure.
Before opening high pressure area of the fuel injection system, fuel
pressure must be relieved to residual pressure.
To reduce remaining residual pressure, lay a clean cloth around the
connector and carefully loosen connector.
CAUTION: Risk of destroying electrical components when battery is disconnected.
Observe measures when disconnecting battery.
Only disconnect battery with ignition switched off.
CAUTION: Risk of scalding due to hot steam and hot coolant.
When the engine is warm the cooling system is under pressure.
To reduce pressure, cover coolant reservoir cap with cloth and
carefully open.
2008 Audi A6 Quattro
ENGINE 3.2 V6 4V Engine Mechanical, Engine Code(s): BKH
2008 Audi A6 Quattro
ENGINE 3.2 V6 4V Engine Mechanical, Engine Code(s): BKH
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If it is necessary to use testing and measuring devices on road tests, observe the following:
Before Opening High Pressure Fuel Injection System
Before Opening High Pressure Fuel Injection System
The fuel injection system is separated into a high-pressure section (max. approximately 120 bar) and a
low-pressure section (approximately 6 bar).
Before opening high pressure area, fuel pressure must be reduced to a residual pressure of approximately
6 bar. The procedure for this is as follows.
Special tools, testers and auxiliary items required
Vehicle diagnostic, testing, and information system VAS 5051B
Procedure
Proceed as follows:
CAUTION: Distraction and improperly secured test equipment can lead to accidents.
Risk of passenger airbag deploying in an accident.
Operating testing and measuring equipment while driving creates a
distraction.
There is an increased risk of injury due to unsecured testing and
measuring equipment.
Always secure testers on the rear seat with a strap and have a
second person on the rear seat operate them.
2008 Audi A6 Quattro
ENGINE 3.2 V6 4V Engine Mechanical, Engine Code(s): BKH
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Fig. 1: Connecting Vehicle Diagnosis, Testing And Information System VAS 5051B
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Connect vehicle diagnosis, testing and information system VAS 5051B while the ignition is switched off.
Fig. 2: Display On VAS 5051B - Vehicle Self - Diagnosis Button
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Display on VAS 5051B :
Press Vehicle Self-Diagnosis button - 1 - in selection.
2008 Audi A6 Quattro
ENGINE 3.2 V6 4V Engine Mechanical, Engine Code(s): BKH
FIXYOURCAR
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Fig. 3: Display On VAS 5051 - "01 - Engine Electronics"
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Display on VAS 5051B :
In selection - 1 - , press "01 - Engine electronics" vehicle system and continue by pressing button.
Fig. 4: Display On VAS 5051 - "006 - Basic Setting"
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Display on VAS 5051B :
In selection - 1 - , press diagnostic function "006 - Basic setting" and continue by pressing the button.
2008 Audi A6 Quattro
ENGINE 3.2 V6 4V Engine Mechanical, Engine Code(s): BKH
FIXYOURCAR
1:50:33 AM Page 4
Fig. 5: Display On VAS 5051 - "Display Group 140"
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Display on VAS 5051B :
In button field - 1 - , press the 1 4 0 buttons for "Display group 140" and confirm the entry by pressing the
Q button.
Fig. 6: Display On VAS 5051 - (Read - Out For Fuel Pressure In Fuel Rail)
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Display on VAS 5051B :
Example:
1. 42%
2. 39.76 bar
3. 40.63 bar
4. Inactive
2008 Audi A6 Quattro
ENGINE 3.2 V6 4V Engine Mechanical, Engine Code(s): BKH
FIXYOURCAR
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Description
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