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Thread: 2016 550i Daytime/Parking Lamp Malfunction

  1. #1
    Join Date
    Jun 2023
    Location
    Charlotte
    Posts
    3
    My Cars
    2016 Bmw 550i

    2016 550i Daytime/Parking Lamp Malfunction

    [COLOR=var(--cali-text-primary)]Drivers side angel eyes don't work. Both headlights and turn signals are fine.
    I was able to pull some error codes.

    805CB2 Daytime running lights: function defective
    805D12 Power supply to TFL DC/DC converter disrupted

    Any thoughts on where to start to fix this?




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  2. #2
    Join Date
    Jan 2017
    Location
    CA
    Posts
    22
    My Cars
    M3
    its the headlight control module which went bad. part no 63 11 7 316 217

  3. #3
    Join Date
    Jun 2023
    Location
    Charlotte
    Posts
    3
    My Cars
    2016 Bmw 550i
    I agree. Are u sure that is the part number for the 2016 550i m sport ? Because when I look online for that part number, some day it fits my car some say it doesn't . Thanks

  4. #4
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,462
    My Cars
    36 Cylinders
    It's for your car; use RealOEM.com

    Make sure you don't have water entry in the headlight which would have been the cause of damage to that module. I would pull and inspect first.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
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    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

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