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Thread: e34 door locking problem

  1. #1
    Join Date
    Feb 2015
    Location
    New Jersey
    Posts
    59
    My Cars
    e34 525i 5spd

    e34 door locking problem

    Hello all. My e34 suddenly developed locking problems, the driver and passenger doors and the trunk lock and unlock without fail from their respective keyholes. The passenger keyhole only locks and unlocks the passenger door and the trunk, and the driver keyhole only locks and unlocks the driver door and the trunk, the trunk only unlocks and locks itself as usual. I manually pressed the little levers to make the two rear doors lock since I cant lock them any other way and would rather them be stuck locked then unlocked. I checked the fuses, and unless a fuse is missing, the fuses are fine.

    Possible suspects:
    Maybe a relay?
    Maybe the general module (windows dont go up, only down, and windshield wipers dont work). My brother messed with the battery and fried the DME and ASC, so this could very well be the problem.
    Maybe something in the driver/passenger door that tells the other doors to lock as well?

    Thanks for any help.

  2. #2
    dworthy's Avatar
    dworthy is offline Wagon meister :) BMW Tech Expert
    Join Date
    Nov 2010
    Location
    Grafenwoehr, Germany
    Posts
    14,483
    My Cars
    16 220i 05 325it 05 M3
    Yes, I would look at the GM as well since that controls the central locking and windows. However the windshield wipers run on a different relay, it is next to the headlamp relay box on the driver side under the hood. It is located in the fuse box, and you should see two or three VHS cassette size boxes. Those are the headlight, and wiper relay boxes.
    Darin
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  3. #3
    Join Date
    Feb 2015
    Location
    New Jersey
    Posts
    59
    My Cars
    e34 525i 5spd
    Thanks, when I was typing it out it sort of became clearer to me. Where do you think I should buy one? I looked on ebay but I dont really trust that an ebay one will work. Is there anyone on the forum that sells this kind of stuff?

  4. #4
    Join Date
    Jun 2006
    Location
    Claremont, CA
    Posts
    84
    My Cars
    525i & Corvette

    Centrol Locking Issue Solved

    IMG_20230131_111815.jpg

    Found my culprit! Left side of the trunk hinge. Don't know who did this previous hack job but I soldered, mended them all back together, and my central locks are back in order.

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