Audi Hints and Tips - Common Problems Troubleshooting
ENGINE DOESN'T START
FAULT: Engine doesn't start or stalls briefly after the start - ECU disabled CAUSE: The ECU is intermittently disabled Because of a fault in the immobiliser (transponder).Due to corrosion on the connectors of the immobiliser control unit there are often loose connections.
SOLUTION: If the immobiliser control unit has ...