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Bi-Xenon Issues

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Farhan, Jan 22, 2013.

  1. Farhan
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    Farhan Active Member

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    Hi All,

    Not the perfect time of year but having a few small niggles with my bi-xenons. I started noticing back in december that one bulb started looking more greenish than the usual blue/white. I usually know with xenon bulbs that when they come to the end of their life they usually turn greenish then slowly to pink and die.

    I decided to get them changed and replaced, Before i changed them i did notice that when i would brake heavy they would flicker, No warnings would come up at all just a very quick flicker (It felt as though they would turn off and on again in a split second)

    Bulbs were now replaced and the color of the bulbs looks spot on. However i noticed more and more that under heavy braking or if hit a dip they would flicker still. I checked all connections when i changed the bulbs over, Removed the ballasts as well and reconnected them making sure no dirt was in between the connections.

    Now just recently i received a bulb out warning and one headlamp was not working, I stopped and started the car and after a few moments they are back on, No bulb out warnings. I dont have access to VCDS but does this sound like the ballasts are possibly on their way out?

    Any advice would be appreciated
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  2. _G_
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    _G_ Member

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    Yeh sounds like the ballast to me but make sure you get OEM ones.
    Still may be worth a scan though with VCDS.
    #2
  3. NHN
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    NHN Modmetractor Site Sponsor

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    Swap ballast from faulty side to good side, see if problem moves.
    #3
  4. S3Alex
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    S3Alex Rarely neutral

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    This may make you laugh....one of my xenons packed up a couple of weeks ago,so the car got checked into the local dealers for a fix.
    The bulb had taken the ballast with it on it's way out,so once I was several hundred bucks lighter,they showed me where a mouse had been nesting underneath the headlight casing.
    #4
  5. amar06fbr
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    amar06fbr Vorsprung Durch Technik

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    are they oem bulbs?
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  6. MrLapou
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    MrLapou Active Member

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    Perhaps this is a bad earth wire/connection issue.
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  7. Digzz
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    Digzz "Started From The Bottom"

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    Sounds like ballast to me also ....
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  8. JayT
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    JayT New Member

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    Haha brilliant!

    By the look of your signature that mouse must have enjoyed his ride!
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  9. Farhan
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    Farhan Active Member

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    Not another rat issue! Certain it wont be that this time as i removed the whole bumper when i switched the bulbs over. The bulbs are not OEM.

    I may give it a try to switch the ballast over, Its difficult though as i would then need to take the car out for a drive for a while to see the symptoms. Happened on the way home today. Switched car off and on after a little while they both fired up.

    May try find someone local to scan it as it would make it a tad easier. Not looking forward to ballast problems! just had a look online and they are PRICEY!
    #9
  10. Digzz
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    Digzz "Started From The Bottom"

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    If you want a quick scan ...Holla @ me ....
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