Diagnostic Mode 04: Reset/delete Diagnostic Data

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostic Mode 04 is used to reset or delete the following stored information:

All emission related malfunctions in the DTC memory.
The operating conditions at which a malfunction was stored will be reset.
All adaptation values.
The test results of all diagnostic functions.

Procedure

Connect the diagnostic tester.
Switch the ignition to the "ON" position.
Select "Diagnostic Mode 03: Interrogating fault memory ".
Then select "Mode 4: Reset/delete diagnostic data".

The diagnostic tester will display: "Diagnostic data are being erased".

Switch the ignition off.
End of diagnosis.