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Thread: 2011 F10 535ix Front Xenon Adaptive Headlight Turn Signal LED Problem

  1. #1
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    2011 F10 535ix Front Xenon Adaptive Headlight Turn Signal LED Problem

    I have a 2011 535ix US edition. I am having problem with the front passenger side turn signal not blinking properly. The original LED unit was not working at all. I bought a Chinese manufactured replacement and it worked for a couple of weeks and then started giving me an error. Then it would work intermittently. I replaced it again with another new Chinese one. It is giving me an error again as soon as I installed it.
    So has anybody had any experience with these Chinese replacements? They look well built and exactly like the original.
    Maybe the wire connector inside the light assembly is the culprit or one of the drivers in the housing need to be replaced.
    Looking for some in-depth information on the light assembly and its various drivers/components.
    My car has Xenon adaptive head light assembly.
    Thanks


    3.jpg1.jpg

  2. #2
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    I would say there's a CANBUS compatibility problem.

  3. #3
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    Quote Originally Posted by ezaircon4jc View Post
    I would say there's a CANBUS compatibility problem.
    Is that a connection in the light assembly itself or a fault in the wiring getting to the light assembly?

  4. #4
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    Quote Originally Posted by 1988bmw735i View Post
    Is that a connection in the light assembly itself or a fault in the wiring getting to the light assembly?

    In the assembly.

  5. #5
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    Do you know if the inside wiring is available separately? Or a new case has to be bought?

    Or if somebody has a broken assembly that I can get the inside wiring from.
    Thanks

  6. #6
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    Quote Originally Posted by 1988bmw735i View Post
    Do you know if the inside wiring is available separately? Or a new case has to be bought?

    Or if somebody has a broken assembly that I can get the inside wiring from.
    Thanks

    IMHO, you need a BMW part. Even then, you may need to code the new unit to the car.

  7. #7
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    Okay,
    Just wanted to give an update. Replaced the turn signal module multiple times even with a BMW part and still had the same problem. I am now thinking that the problem is in thelight board.jpg circuit board. I have ordered one and will give an update after I have installed it.

  8. #8
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    I installed the circuit board over the weekend and so far so good. The turn signal is working as it should. I sprayed some DEOXIT in there before I installed the new board, Chinese (cheaper) version.
    The original board I took out seemed to have problems at the connection points.
    i.jpg

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