[SOLVED] Xenon Nightmare!

Discussion in 'Electronics' started by clk320x, May 16, 2017.

  1. clk320x

    clk320x Hardcore MB Enthusiast

    Messages:
    10,086
    Joined:
    Sep 27, 2016
    Location:
    Midlands
    Car:
    W211 E320 CDI, W212 E250 CDI, W203 C32 AMG
    I believe I have finally found the reason behind my dreaded Xenon nightmare

    See Star Bulletin: https://www.dropbox.com/s/pw394u7om0...B1].pdf?dl=0

    I believe I need to order the relevant kit for the igniter replacement, and it seems to be not too bad of a job? Bottom page it mentions around 1 hour.

    there are 2 kits and the way to distinguish which one is to check the manufacturing date of the headlamp.. (shown on the attached pdf) and the actual replacement procedure seems to be simply cutting off the old igniter and soldering in a new one?

    The symptoms of my car seem to hint towards igniter, as the bulbs sometimes fail to ignite however when the car is switched off an on sometimes the bulbs will restart and work fine... sometimes they work perfectly all the time!

    According to others the original ignitor (such as the one fitted in my car) delivered only 25KV to the bulb but this was then increased to 30KV later.

    Now here I am confused

    Perhaps, as the xenon bulbs in mine have got older they require more voltage to ignite so i am having these issues? could it be just a set of new bulbs could solve this? As this only started a few months ago

    However I have also seen a post where someone has had the same symptoms as me except it was solved by a new ballast!

    Conflicting info everywhere

    Any help greatly appreciated

    Cheers
     
  2. Major774

    Major774 MB Enthusiast

    Messages:
    1,882
    Joined:
    Sep 6, 2012
    Car:
    W211 E55 AMG
  3. b1g1an

    b1g1an MB Enthusiast

    Messages:
    1,513
    Joined:
    Dec 12, 2012
    Location:
    Norfolk
    Car:
    Thug in a silk dressing gown
    It's not the bulbs, they just go purple as they die. You've got the classic symptoms of a ballast on the way out.
     
  4. OP
    OP
    clk320x

    clk320x Hardcore MB Enthusiast

    Messages:
    10,086
    Joined:
    Sep 27, 2016
    Location:
    Midlands
    Car:
    W211 E320 CDI, W212 E250 CDI, W203 C32 AMG
    This has been over 6 months.. can a ballast be on way out for that long? Wouldn't it have failed by now?

    If the ballast was bad wouldn't the light flicker etc as ballast regulates voltage?

    Igniter is what delivers initial voltage to start the bulb, so makes sense igniters not working properly as bulbs don't always start up but they need a few times?
     
    Last edited: May 17, 2017
  5. b1g1an

    b1g1an MB Enthusiast

    Messages:
    1,513
    Joined:
    Dec 12, 2012
    Location:
    Norfolk
    Car:
    Thug in a silk dressing gown
    One in a V70 I used to have took over a year to die completely, only put up with it for so long because I knew what a ball ache it would be to replace.

    Don't know if MBs are different but igniter tends to be part of the ballast box.
     
  6. OP
    OP
    clk320x

    clk320x Hardcore MB Enthusiast

    Messages:
    10,086
    Joined:
    Sep 27, 2016
    Location:
    Midlands
    Car:
    W211 E320 CDI, W212 E250 CDI, W203 C32 AMG
    Ignitors are separate on the CLK

    After driving to Yorkshire & Beaconsfield I now have 2 Ignitor retro-fit kits which allows fitment of a new and updated part, leaving the old ignitor in-situ hence meaning total fitment time of around 1 hour.

    Last 2 in the UK, didn't want to special order from Germany.

    Terry is fitting them for me tomorrow, so will report back. Hopefully this solves it once and for all.
     
  7. b1g1an

    b1g1an MB Enthusiast

    Messages:
    1,513
    Joined:
    Dec 12, 2012
    Location:
    Norfolk
    Car:
    Thug in a silk dressing gown
    Cool, fingers crossed :)
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.