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What is the likely problem here ?

Discussion in 'A3/S3 Forum (8L Chassis)' started by Effect, Dec 4, 2009.

  1. Effect

    Effect Member

    Apr 2, 2007
    Likes Received:
    i crashed my car a couple of months ago and one of the replaced components was the driver's side hadlight complete unit bulb ballast starter etc.

    Sometimes the new headlight fails to kick in, the remedy to this is to turn the main beam off and back on again, it ALWAYS works 2nd time.
    some days it will happen 5 times others it wont happen at all.

    So I sent it back to the garage that repaired it who then sent it to Audi, who replaced the headlight with another brand new one.
    I got it back tonight and 3 or 4th time I turned headlights on same problem again. :(
    It does come with a DIS bulb failure warning as well.

    starting to lose the will to live with this now :(
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  3. S3 Paul

    S3 Paul Well-Known Member
    Regional Rep

    Oct 27, 2006
    Likes Received:
    Mine does the same mate,
    Its anoying but im not paying for a new light if that willnt fix it !
    Im guessing maybe one of my plugs has maybe got damp in it??
  4. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4

    Apr 26, 2004
    Likes Received:
    i used to have the problem with my old car and its aftermarket HIDS. It was a poor earth on mine, i made a better earth just for the light unit and that fixed it.
  5. S3 HODGE

    S3 HODGE Brown passenger seat.

    Apr 22, 2009
    Likes Received:
    Mine did that before mine stopped working and it was only the fuse that blew....Change the fuse for one that you know that works, The fuse already in there may not look cracked but sometimes you cant tell.

    Hope this helps.

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