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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.

BMW Repair

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John Kingery


BMW Repair (e24, e36, e38, e39)


Owned/maintained 5 BMW's, plus friends. Done exhaust systems, head gaskets, fuel systems, brakes, suspensions, electrical, seats, etc., etc.

BMW Club

degreed Mechanical Engineer, w/20 years experience

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