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Thread: e28 1983 Central locking problem

  1. #1
    Join Date
    Aug 2013
    Location
    st. louis, mo
    Posts
    3
    My Cars
    1983 528e

    e28 1983 Central locking problem

    Hey all. My electric locks won't work. Fuse #5 is a-okay. There's power to the Central Lock Control Unit as I can see the relays working when I work the locks. (I took the control unit out with battery off. Kept it in the upright position, hooked it up, connected the battery.) I can see the relays working. The central lock control unit's little internal fuse is soldered tight and has continuity. Yet no locks working. Any thoughts on what I look at next??

    Could the control unit still be toast even though the relays and fuse are okay? What other options

  2. #2
    Join Date
    Mar 2008
    Location
    sp hill,fl,usa
    Posts
    1,253
    My Cars
    e30 e28 e60 k1200gt
    test a door lock - & sw's on drivers door - ck for elec pulse to selonid if no pulse - change out control box.
    if a door sw is bad - it can make locks - go on & off till control unit burns out - been there done that !

  3. #3
    Join Date
    Aug 2013
    Location
    st. louis, mo
    Posts
    3
    My Cars
    1983 528e

    Thanks! I'll try that.

    Quote Originally Posted by royemello View Post
    test a door lock - & sw's on drivers door - ck for elec pulse to selonid if no pulse - change out control box.
    if a door sw is bad - it can make locks - go on & off till control unit burns out - been there done that !
    I ordered a new Central Control Unit too. Let's see if that works.

  4. #4
    Join Date
    Oct 2008
    Location
    Kettering,OH
    Posts
    5,128
    My Cars
    e34 535i and 98 528i
    A new one? I could have sent a good used one for 20 shipped.

    Andy

  5. #5
    Join Date
    Oct 2005
    Location
    Leesburg, VA
    Posts
    1,887
    My Cars
    '74 tii, '85 & '86 535i
    John in VA
    BMW CCA member
    National Capital Chapter
    '74 tii "Juanita"
    '85 535i "Goldie"
    '86 535i "M-POSSTR"
    '00 328i "Fern"
    '03 530i "Titan"


  6. #6
    Join Date
    Aug 2005
    Location
    Medina, Ohio, USA
    Posts
    6
    My Cars
    '87 635 Csi
    Hi Andy,

    I am replying to this old post. I need an e28, 528e central lock controller for my 1984 BMW, BMW part no: 61-31-1-373-323 (I believe for my year). Do you have a good one? price? I am in Ohio. Thanks., Bruce

    bkpaley@roadrunner.com

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