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Bi Xenon flickering on start up! whats usually the problem?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Ashley Martin, Feb 19, 2013.

  1. Ashley Martin
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    Ashley Martin Member

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    Hey guys

    As the title says what could be wrong, its a 57 plate S3 and I just noticed that when I put the ignition on it was flickering, but then cleared after a few seconds. Its like its only on fire up!

    Thanks

    Ash
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  2. NHN
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    NHN Modmetractor Site Sponsor

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    Could be a bulb or headlight module, is it one side or both?
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  3. Sidhu88
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    Sidhu88 Member

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    By any chance does it do it around if not exactly 5 times? I get this with my led 501s. Im sure its just the canbus system passing power through to make sure all is working well, although thats aftermarket equipment i doubt the same thing should happen with oem?
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  4. NHN
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    NHN Modmetractor Site Sponsor

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    Not with oem bixenons no.
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  5. Ashley Martin
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    Ashley Martin Member

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    It's just on the passenger side and it is more like a slight flicker rather than a strobe effect!
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  6. Ash187
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    Ash187 Audi Retrofitter

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    most likely bulb is on its way out
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  7. essIII
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    essIII Member

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    When my Xenon bulb started to die it produced a noticeably purple light in comparison to the other one which was still more blue/white - is there any difference in the colour of light between your passenger and driver side lights?
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  8. Sevv
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    Sevv Pushing the limits..

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    try the bulbs mate most likely or the ballast but i would change the bulbs first
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  9. Ashley Martin
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    Ashley Martin Member

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    I haven't noticed any difference in the colour of the light and after the first start of the day it seems to stop until its left again for a while. How much is a bulb for these?
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  10. Sevv
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    Sevv Pushing the limits..

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    i bought mine of ebay 100 USD i remember.... , i remember one of the member had an issue with the headlight switch in the cabin , check the connection to the switch is fine too
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  11. S3Alex
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    S3Alex Rarely neutral

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    From your friendly Audi dealer the bulbs are about £120 and the ballast will make you weep.

    About £600.

    Mine packed in a month ago.
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  12. essIII
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    essIII Member

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    #12
  13. The Governor
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    The Governor Member

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    £600!!! How can it be that much?? Is it that the ballast is not a consumable and in theory should never go, or is it an inevtibality that it will at some point, because £600 to get your headlights working is obscene...

    [Edit] Ah I see, just did a bit of a check about, ballast is not ballast at all, it's a voltage regulator...
    #13

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