Diagnostic Mode 08: Tank Leak Test Audi TT 8N

Diagnostic Mode 08 is used to determine if the fuel system may be leaking.

Depending on the scan tool being used, the function test in Diagnostic Mode 08 may or may not be able to be performed.

If the scan tool being used will operate Diagnostic Mode 08, perform the test below Function test .

If the scan tool being used will not operate Diagnostic Mode 08, refer to --> Evaporative Emission (EVAP) System, Leak Checking .

Note. Always follow the manufacturers instructions for the scan tool being used.

Test requirements

1. No DTCs stored in the DTC memory.
2. Intake Air Temperature (IAT) maximum 60°C.
3. Coolant temperature 80 -110°C.
4. Throttle valve angle 12.0 - 16.0%.