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During the work carried out, nothing is done to lock the selector lever, you do not even get close to the lock. Thus a direct connection can be excluded.
To be honest, I have never experienced that (even at Audi) the magnetic armatures unlock totally without any device. One always hears a sound.
However, since you are on site and can evaluate the device directly, I cannot rule out that the lock is a little louder than normal, this can happen over time, as dust etc. settle in the mechanics.
Audi can try to clean the lock a little and lubricate it gently if necessary. If this doesn't help, the selector lever unit has to be replaced, but this would be a big intervention for the device, which doesn't affect it except for the click. You would then have to decide whether it is worth it to you.
In any case, you can say that the work done has nothing to do with the device.
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