Last week my passenger side key lock stopped working. I would turn the key either way and nothing would happen. Something was definitely wrong, but what? What would cause it to break? How hard is going to be to get at the mechanism.In the past I have opened several door panels in order to get at the locking mechanism. The Jetta seemed to need the same kind of job. Firstly, there were 6 3mm allen key screws to come out, along the bottom and left and right sides. Then the door handel cover has to be popped off with a broad flat screw driver. Then the door latch handle cover also had to be removed in the same way along with the rear view mirror inner cover panel. There are no tricks to this except gentle presuasion with a screwdriver. Some people put masking tape over the blade to prtoect the metal. Next came the windows crank arm. This was the trickiest part. The collar behind the crank arm needs to be pinched on either side and pushed in the opposite direction the crank arm points. Please see the picture and video:
Now all the attaching screws were removed. Two from the door handel, one from the door latch assembly and four that mount the speaker. The speakerer was then disconnected. Then the door lock knob was removed. Then the door panel was carefully removed in and upwards and outwards motion.
To get at the lock assembly I needed to first remove the vapor barrier and then unscrew the torque bolt that is right behind the handle that faces the back of the car when the door is shut. The handle was slid towards the front of the car and pulled out.
Once I had my lock assembly out it was clear that it was broken either by someone trying to break into the car or by plain use. I reckon the former. Here is a couple shots at the carnage.
As you may or may not be able to see the shaft is not connected to the key mechanism and there is signs of shearing. If anyone knows why this happened please let me know! Until then I will be heading to the junk yard for a new key assembly.
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