How to Clear Diagnostic Trouble Codes

BMW Service Tester:

BMW MoDiC:

The contents of the defect code memory can be cleared with the BMW DIAGNOSTIC SYSTEM.

Important!

On no account clear the defect codes before repair, otherwise important information (troubleshooting, additional information etc.) will no longer appear on the display screen.

Clearing Defect Code Memory:

There are three possible ways of clearing the defect code memory:

Within 3 seconds after the end of the flash code output (after 25 seconds) when the ASC multi-function lamp lights permanently once again, press the ASC button for at least 1 second

Disconnect vehicle battery. (Attention! Defect code memories of other systems may be cleared)

Disconnect control unit. (Attention! Ignition must be switched off)