Thursday, October 20, 2011
Common Problems Troubleshooting – Audi Hints and Tips Series
If the immobiliser control unit has no fault stored, the cause is a loose contact or an excessive transition resistance on connectors or earth connection. Check the earth cable and earth contact for the immobiliser control unit. The cables of the control unit must be routed free of tension. With height adjustable steering wheels make sure the cable to the reading coil has enough clearance. Observe the maximum adjustment range of the steering wheel. Attach the loose cable from the reading coil with a cable binder at a suitable point, as near to the control unit as possible.
Engine difficult to start when warm, only after approx. 20 seconds of starter operation. CAUSE: The starter motor is not revving fast enough. SOLUTION: Check the battery. If no fault is found, carry out a test by programming the ECU to automatic gearbox. If the engine then starts normally, replace the starter motor. After replacing the ECU recode to manual gearbox.
