Test sequence
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2004 Audi A6, 2003 Audi S6, 2003 Audi A6, 2002 Audi S6, and 2002 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.
- Connect diagnostic tester. See CONNECT DIAGNOSTIC TESTER .
- Start engine and let run at idle for at least 15 minutes.
- In diagnostic function "33 - OBD", select "Mode 8: Tank leak test".
- Select the "Test-ID 01: Tank leak test".
- Check specified value of tank leak test at idle.
TANK LEAK TEST SPECIFIED VALUE
| Tank leak test | Specified value |
|---|---|
|
Test OK |
NOTE:
- If the accelerator pedal is depressed during the test, the test will be aborted.
- To repeat the tank leak test, switch ignition off and start engine again and let run at idle for at least 15 minutes.
If specified value is obtained:
- End diagnosis and switch ignition off.
If specified value is not obtained:
- EVAP canister system, checking for proper seal. See EVAP CANISTER SYSTEM, CHECKING FOR PROPER SEAL .
- Check Leak detection pump (LDP) -V144-. See LEAK DETECTION PUMP (LDP) -V144-, CHECKING .