BMW Repair/Door Lock
So Cal wrote at 2011-08-15 19:58:53
I have the same exact annoying problem with my passenger door on a 740IL, 1999. What I found out works, till it happens again, is to take the Fuse for the locking mechanism out, drive around with it for a day or two, then plug it back in. Most of the times, 90% or so, it will unlock the door and have a normal operation. Again, this is not a permanent fix,as it will come back few months later. Good luck, if anyone else has a permanent fix I would love to hear it.
fermit_dee_krog wrote at 2013-02-04 03:18:58
I tried some of these suggested methods even thought of grinding out backing plate on catch, then thought there must be an easier way. So I removed trim on outside of door that runs along window, to get a look down inside. What I found was the outer door handle is connected to the inner door latch mechanism via a cable. My cable was seized in the open position which was not allowing the lock mechanism to reset. So I sprayed a whole lot of crc 5.56 (wd40) over the cable while working the outer door handle and eventually it freed up and the door opened. So glad I didn't start that grinder up, what a mission that would have been.