Test sequence
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. 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.
TEST-ID 01: 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 .