Driver's Door Lock Not Working

[davintosh]

I bought a '90 535i last fall that had an issue with the driver's side lock; after a long winter, I finally got around to tearing into it, and am a bit puzzled by what I found, so I'm hoping someone here can give me some advice on getting it working.

The problem it has is that the inside lock knob doesn't move, and the driver's door won't lock. Using the key from the outside, it's possible to lock everything else, but not the driver's door. I figured at first that it was the latch mechanism, but when I pulled that out yesterday, it seemed to work fine. When I pulled the outside handle mechanism out, that appeared to be the problem. The lever that attaches to the lock actuator allows very little movement. See the video:



I don't have a good reference to how much movement should be allowed in that part, but I'm pretty sure it should be more. By moving the lock actuator further from the mechanism, I was able to get the lock button to move a little, but not enough to actually allow the door to lock & unlock properly.

Anybody have any idea whether this is normal or not? If not, outside of replacing it, any advice on disassembly/repair of the lock mechanism?

Thanks!

[shogun]

https://www.bimmerforums.com/forum/s...ck-Not-Working