Drivers rear door and trunk locks are stuck closed, how do I get trunk open?
My 89 535im, first the rear drivers side door lock started to fail, now it is stuck closed, I can not open it manually from inside, or via key.
Same with the trunk lock, it was sticking a bit and was becomming more difficult to open with the key, now it also is stuck closed, it will not open with the key or via drivers side or passengers side door locks.
I tried re-synching the locks from the passengers side door lock but no luck.
Any help is greatly appreciated.
Here is the door link in our archives
That may help on the door
Quote:
Originally Posted by icm5er
My 89 535im, first the rear drivers side door lock started to fail, now it is stuck closed, I can not open it manually from inside, or via key.
Same with the trunk lock, it was sticking a bit and was becomming more difficult to open with the key, now it also is stuck closed, it will not open with the key or via drivers side or passengers side door locks.
I tried re-synching the locks from the passengers side door lock but no luck.
Any help is greatly appreciated.
Wile the cylinder is at horizontal position, ...
it is not possible to unlock the trunk via Central locking system. It is the safety feature included for valet parking (You leave the key without the grooves and it will not fit the trunk/glove box lock, so leaving the trunk lock horizontal will not open without the master key).
Lube the lock with some graphite dust and start playing with it, until you can, at least, put it back to vertical. Only then, the lock will be released to be unlocked via Central Locking.
Javier
Edit in bold
Trunk lock stuck in horizontal position
Gentlemen: Thanks for your responses. I was able to fix the problem. For future reference to anyone who has a similar problem (trunk cylinder lock stuck in the horizontal position), always remember to try the simple solutions first, like lube the cylinder. I spent considerable time today trying to resolve it, not to mention the past few weeks living with the issue; I even started taking the trunk apart in my pristine 1991 M5 in order to see how the lock, actuator and wiring was situated. I researched everything available on multiple web sites; I almost started ripping the rear interior and seats apart in the 535 to get at the trunk through the ski opening as others have done. Good thing I decided to try some lube in the cylinder first. For some reason I was convinced that lube could not possibly be the solution, the lock just seemed to be mechanicallly stuck, I was convinced it was a faulty actuator. One small shot of lube and the lock opened smoothly with the first try.
Thanks again for your responses and suggestions.