tanchelli

I just replaced my driver's door lock actuator on my 2006 Audi A4 3.2L V6 B7 (USA). As far as I can tell the install went smooth without any hiccups. After reinstalling everything I found that the keyfob successfully locks and unlocks all doors using the remote buttons (before this functionality was non-responsive), but the physical key will no longer lock/unlock the driver's side vehicle (this used to work). Anyone have thoughts as to where I went wrong? Is this function associated with the door lock actuator and I received a faulty used part?

Everything is sealed up at the moment so I'm trying to figure out if I need a replacement part to order in advance so I don't have to disassemble/reassemble twice.

Currently, the external handle opens the door and the internal handle opens the door. The key also successfully turns left and right inside of the lock assembly, there's just no reaction from the vehicle to lock/unlock the driver's side door.

Thanks in advance.

A4Audi4Fun

I believe there's a mechanical linkage that needs to be connected between the key cylinder mechanism and the lock actuator - are you 100% certain you connected that piece.

tanchelli

I think that's where I went wrong. I had previously replaced the rear passenger door lock actuator, which didn't have this step, so I think I overlooked that component for the driver's door lock actuator.

tanchelli

Issue is resolved, there was a physical connection from the key lock cylinder, which had a blade like insert into the door lock actuator that was hidden from view (there was a plastic mold protector that hid this insert, likely to prevent debris from damaging the actuator). I assumed the key lock cylinder response was electrical, turns out I was wrong.

Thanks to A4Audi4Fun for taking the time to post.