I have an E46 BMW whose driver side door won't unlock or lock with both the key and the central locking button. I can still unlock/lock it with the key and with a push of my finger from the top. I can also unlock it from inside of the car by simply using the handle (pull once to unlock and then again to open the door).
I've had some body work done on it earlier in the year and it wasn't until a few months after the job that it started to act up. The people who did the work didn't fit the door panel back on correctly into place and I think that may have been what was causing the issue in the first place.
Steps that I have taken so far in troubleshooting this:
Checked fuse #52 for the door actuator--was reading ~12V from both ends.
After taking off the panel and realigning it as best I could, the lock was working for about ~5 minutes of testing.
- I can feel the door's mechanism working when I place my hand on the panel and press the central locking/unlocking button.
Any help would be greatly appreciated!