Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSAUDI2005A6 3.2 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 97 (4.2L - GENERIC SCAN TOOL, ENGINE CODE(S): BVJ (ST-GENERIC SCAN TOOL))ST - GENERIC SCAN TOOLDIAGNOSTIC MODESDIAGNOSTIC MODE 08 - TANK LEAK TESTFUNCTION TEST

2005 Audi A6 3.2 T

Function test

2005 Audi A6 3.2 TSECTION Function test

WARNING: This page is about a different car, the 2011 Audi A6, 2010 Audi A6, 2009 Audi A6, 2008 Audi A6, and 2007 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

If the accelerator pedal is depressed during the test, the test will be aborted.

Connect the scan tool.
Start the engine and run at idle for at least 15 minutes.
Select "Diagnostic Mode 08 - Tank Leak Test".
Select " Tank Leak Test".

Check the specified value of the tank leak test at idle.
The following may be displayed on the scan tool screen:

Tank leak test

Specified value

Test function active
Test function is being initiated, please wait

Test off
Test aborted

Test OK

Switch the ignition off.

If the specified result is obtained:

System OK.

If the specified result is not obtained:

Repeat the tank leak test, switch the ignition off and start the engine again and let run for 15 minutes at idle.
Switch the ignition off.

If the specified result is again not obtained:

A leak may be present. Refer to → EVAP System, Leak Detection .

End of diagnosis.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.