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Thread: E39 light

  1. #1
    Join Date
    Jun 2019
    Location
    United States
    Posts
    23
    My Cars
    E39 540i

    E39 light

    I got an 03 e39 540i, my high intensity discharge light are shitty so I bought some 55 watt ballast and bulbs to see if that helps I was wondering if anyone has run 55watt ballast in their e39 car before without problem since I know it’s gonna need more power

  2. #2
    Join Date
    Apr 2007
    Location
    NNJ/NYC
    Posts
    1,648
    My Cars
    1997 528i/5, 1997 528i/5
    Headlight adjusters... tons of info on the E39 sub-forum.
    Wade

  3. #3
    Join Date
    Jun 2019
    Location
    United States
    Posts
    23
    My Cars
    E39 540i
    Adjusters are fine, I just wanna know if the 55watt wouldn’t cause problems and yes the beam is at the right height
    Last edited by E39guyE46; 01-16-2020 at 04:03 PM. Reason: K

  4. #4
    Join Date
    Sep 2005
    Location
    Peoria, AZ
    Posts
    7,696
    My Cars
    03 zhp, 97 e36m3, 04 zhp
    Bulbs will output more heat killing your already half dead reflector coating even faster. e39's electrical will handle 55w just fine.

  5. #5
    Join Date
    Jun 2019
    Location
    United States
    Posts
    23
    My Cars
    E39 540i
    Alright thank you, morimoto retrofit is scheduled for the summer rn it’s too cold outside

  6. #6
    Join Date
    Sep 2005
    Location
    Peoria, AZ
    Posts
    7,696
    My Cars
    03 zhp, 97 e36m3, 04 zhp
    The difference between brightness of 35 vs 50watt is negligible IMO, but the difference between 15+ yo reflector bowls and brand new ones is far more dramatic. Keep it at 35 to prolong the lifespan of those coatings and use good quality bulbs.

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