A4 (B7 Platform) Discussion Discussion forum for the B7 Audi A4 produced from 2005-2008.5

Xenon Headlight Flicker Ever Solved?

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Old Jul 23, 2007 | 07:15 AM
  #1  
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Default Xenon Headlight Flicker Ever Solved?

Did anyone ever have their driver's side xenon headlight flicker problem solved?

I remember reading a post where the ignitor or ballast was to blame.

I just had the whole drivers side headlight assembly replaced with no luck. Under breaking, turning, and acceleration I get a bad flicker.

I just can't find the thread now.

Thanks,
-Peter
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Old Jul 23, 2007 | 07:47 AM
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Default

Are you sure it's flickering, or could it be vibrating?
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Old Jul 23, 2007 | 07:50 AM
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Default Re: Are you sure it's flickering, or could it be vibrating?

It pulsates from on to off.

Some Videos:
http://208.109.11.4/misc/s4_1.avi
http://208.109.11.4/misc/s4_2.avi
http://208.109.11.4/misc/s4_3.avi
http://208.109.11.4/misc/s4_4.avi
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Old Jul 23, 2007 | 08:52 AM
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Default Yes, the ballast was replaced

Symptoms - flickrs a bit. Then it might just go off entirely, but turning the lights off and back on will get it running again. I had to drive to the dealership with the one light not working to convince them that something was wrong.

My left started to do the same thing but taking a lot longer to fail vs the right one.
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Old Jul 23, 2007 | 10:34 AM
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Default When you turn xenons on, do they perform the aligning procedure?

If not, you need to recode your Cent. Electronics. I had this flicker issue when I was playing around with the coding.
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Old Jul 23, 2007 | 10:49 AM
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Default Re: When you turn xenons on, do they perform the aligning procedure?

They go through the procedure everytime I turn on the car.
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Old Jul 23, 2007 | 08:02 PM
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Default My passenger side vibrates, bugs the heck out of me...

only does it when the car is cold and in gear, as in when I am backing out of the garage at home or work. If this is a known problem, is there a TSB? My dealer plays dumb when I mention it to them.

Rick
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