TSB's

Customer Screw-up

This bulletin applies to 2011 Audi A8 vehicles, where the customer complains that the master key with remote control won’t stay or engage in the ignition lock.

On vehicles with advanced key, the keyless unlocking/locking using the door handle and the opening of the trunk lid with the trunk handle are inoperable, the engine cannot be started with the Start/Stop button and the remote keys are inoperable.

The message “ignition lock faulty” may appear in the instrument cluster display. DTC 00166 (access/start authorization switch E415 incorrect signal) may be stored in the Comfort System Central Control Module J393 (address word 46).

It is possible that objects have been inserted into the ignition lock, causing the slide of the ignition lock to become stuck in the rear part of the lock (S-contact position). This does not allow the slide to return to the starting point (O-position).

1. With the ignition lock installed in the vehicle, return the slide to its starting point. Insert your index finger into the ignition lock, gently press the slide to the end stop (about 5 mm) and release, allowing the slide to bounce back.

2. With your index finger, hold the lower locking latch and pull the slide out approximately 7 mm.

3. Additionally, light compressed air may be used to blow out dirt or debris from the ignition lock.

4. Inform the customer not to insert unsuitable objects into the ignition lock.

Using a finger, depress the slide in until it stops, about 5 mm.
<p>Using a finger, depress the slide in until it stops, about 5 mm.</p>

Again using a finger, hold the lower locking latch (see circle at bottom of the slide in the photo) and pull the slide out about 7 mm.
<p>Again using a finger, hold the lower locking latch (see circle at bottom of the slide in the photo) and pull the slide out about 7 mm.</p>

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