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W211: E320 Cdi 2005, dipped beam, right.

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by anyweb, Jan 8, 2013.

  1. anyweb

    anyweb Senior Member

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    Your Mercedes:
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    my brand new lights (had a car crash which meant they were both replaced) have now failed on the right side at least for dipped beam, these are xenons so what does that mean, full beam seems fine, is it a fuse ? or a xenon bulb ? if a bulb surely they shouldnt fail after one month of use ?
     

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  2. television

    television Always remembered RIP

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    You do have a guarantee but does it cover bulbs
     
  3. OP
    anyweb

    anyweb Senior Member

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    is it just a simple cheap bulb or am i screwed (price wise) i have no idea how it works with xenons :(
     
  4. television

    television Always remembered RIP

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    You buy them cheap on Ebay, do not pay the 1000kr dealer price, you should try the lamp in the other side to be sure it is the bulb rather than the control ECU or the igniter
     
  5. OP
    anyweb

    anyweb Senior Member

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    but malcolm the lights are brand new, is this normal to blow in a month ?
     
  6. television

    television Always remembered RIP

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    Well this is why we have guarantees things can fail as you know,,I would go back to who did the job
     
  7. OP
    anyweb

    anyweb Senior Member

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    i did that, called into them today car is booked in tomorrow, lets hope they fix it for free.
     
  8. OP
    anyweb

    anyweb Senior Member

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    update:
    I brought the car to the garage, explained the failure and asked them would they cover it under warranty seeing as the lights were completely replaced brand new only a month earlier, they declined to comment but asked to take the car in for investigation for the day,

    they took the car and rang me up later that afternoon to say the problem was resolved and fixed under warranty, unfortunately the guy who dealt with me couldn't speak english so as far as i understand it there was nothing wrong with the xenons it was an external control module that had failed, they replaced it (i think) and all is ok now
     
  9. television

    television Always remembered RIP

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    Thats good and I have some T cut for you to post early this week :D
     
  10. OP
    anyweb

    anyweb Senior Member

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    thanks Malcolm
    don't forget to send me your address so i can send you some Sill :)
     
  11. OP
    anyweb

    anyweb Senior Member

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    any idea what 'module' they replaced ? could i have replaced it myself ? or did it require STAR ?
     
  12. television

    television Always remembered RIP

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    Too hard to say as some modules are in the actual lamp unit Niall, the only one is the Lamp ECU, that is if it was that. be in touch soon :D
     
  13. OP
    anyweb

    anyweb Senior Member

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    ok now i'm ****ed, i had the trailer connected today, drove somewhere, no problems, went for a walk, back in the car and the exact same warning message popped up again for the same light which leads me to believe the problem is a short or similar related to having the trailer (however I've used the trailer quite a few times since the repair with no problem at all)

    so now i have the same issue as before, same xenon light warning and it is indeed off, so what are my rights here, will the garage tell me to get lost ?

    Can any of you tell me which fuses control the xenon lights and where the fuse(s) are located so that I can check if one of them has blown, or is it a relay ? I feel irritated now as the garage had my car an entire day before to 'fix' this problem and i sure dont want to spend any money getting it fixed...

    what do you guys advise me to do ?
     
  14. OP
    anyweb

    anyweb Senior Member

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    went into mercedes today they confirmed the part number that had failed before had failed again so it's booked in for wednesday for a full checkup
     
  15. television

    television Always remembered RIP

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    That was a nice car you bought Niall,, you are just having some bad luck
     
  16. OP
    anyweb

    anyweb Senior Member

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    well they fixed it again FOC, by replacing the exact same part, so now i'm wondering will it fail again, i got the part number and will try and find where i wrote it down so you guys can tell me what the part actually is
     
  17. OP
    anyweb

    anyweb Senior Member

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    and today i've got the same problem again, so i have to go back to the garage and complain yet again.... :(

    I wish I could find the piece of paper i wrote the part number down on so I could at least research the part that is failing, what I do note is that the failure has only occured when i start the car, i.e. i've never seen the problem occur mid-transit anywhere, so sounds like it could be a surge of current or something that blows the module.
     
  18. television

    television Always remembered RIP

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    Really odd this one Niall,,,I just do not know what to say
     
  19. OP
    anyweb

    anyweb Senior Member

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    well does the fact that it blows whatever it is when I turn the key tell you anything ?
     
  20. television

    television Always remembered RIP

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    No other than the fault is there at start up,,, and start up is the time when these things fail more often than not, most electric things from computers to many other things go POP when you turn them on, in you case the voltage is much lower when cranking is taking place
     

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