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Thread: Remote key wont unlock.. antenna?

  1. #1
    Join Date
    Dec 2017
    Location
    Prijedor
    Posts
    15
    My Cars
    BMW 525d 2002

    Remote key wont unlock.. antenna?

    Remote unlock/lock wont work.
    Car starts normally.
    Manual lock/unlock door works.
    All fuses OK (fuse 53 checked)
    Inside car central locking (big button) works normal.
    Fuel door actuator works.
    Radio works normally.

    Here are some photos and questions if someone can explain.

    NOTE: I also measured with multimeter and it seems that i don't have 12 Volts in none of these wires.


    Here are the photos:

    https://imgur.com/a/YuEvA

    https://imgur.com/a/SysDK

    https://imgur.com/a/Mi2MC

    Any Ideas/Suggestions?

    Thanks:

  2. #2
    Join Date
    Oct 2005
    Location
    Silver Spring, MD
    Posts
    877
    My Cars
    Too many
    Battery in your key? I'd check that first.

    Sent from my SM-T817V using Tapatalk
    00 740iS
    84 635 (euro)
    88 M6
    84 745i
    88 325iX
    92 850i (6 spd)

  3. #3
    Join Date
    Dec 2017
    Location
    Prijedor
    Posts
    15
    My Cars
    BMW 525d 2002
    Forgot to mention. New battery in both keys, tested and 3 Volts both. Also tested keys buttons. They work perfectly.
    I also know how to program keys, and i did that in past, but that didn't help either.
    Last edited by Brigand; 01-17-2018 at 10:48 AM.

  4. #4
    Join Date
    Aug 2014
    Location
    Cheshire, CT
    Posts
    1,405
    My Cars
    1998 BMW 528i / 5
    How is the car's main battery? I believe the E39's have a failsafe where it won't let the remote lock work if the main car battery is low. It should be ~12.5v while in sleep mode.
    Ed CT
    1998 528i
    5-Speed
    Aspen Silver
    Aubergine Leather

  5. #5
    Join Date
    Dec 2017
    Location
    Prijedor
    Posts
    15
    My Cars
    BMW 525d 2002
    Bought brand new car Battery 2 days ago. 100 Ah. Everything else in car works perfectly.

  6. #6
    Join Date
    Mar 2012
    Location
    Hayling Island
    Posts
    183
    My Cars
    Alpina B10
    I had this, everything worked fine except the remote key locking. It turned out to be the bootlid wiring had chafed and broken in the rubber concertina where the boot wiring feeds into the car! Didn’t make any sense to me but worth a look.


    Sent from my iPad using Tapatalk

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