My 95 540i has had a front passenger door lock glitch ever since I bought it. Have had to operate it manually while the other doors have been working fine, locking and unlocking with key (not remote). Yesterday, when I went to lock the doors from the drivers side, nothing happened but when I went to front passenger side the key locked and unlocked all the doors. When I sat in the drivers seat and tried to push the lock down it would not budge but when I reached over and tried the passenger side all worked fine. Then I couldn't unlock driver door manually...i was trapped until I manually unlocked the front passenger side.What's up with the locks???