A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Headlight Problem

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Old Nov 12, 2006 | 09:43 PM
  #1  
Redditt81kg's Avatar
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Default Headlight Problem

Hello all, I have a 2001 1.8TQ. I installed a Mcculloch 8000k HID kit about a year and a half ago I have had no problems at all until recently. At first only of the lights would come on and I would have to flip the switch on and of for it to come on and it would'nt always be the same light they would alternate. I checked the wireing and all seems good but I am no expert. I haven't changed the bulbs yet but since the problem alternate between lights I didn't consider that an option. Now both lights come on but after a minute or two they both will go dim. If I flip the switch they will be full strength but a minute of two later same thing. My voltage is good and doesn't fluctuate nor do my dash lights dim just the headlight. I just wanted some opinions before I go replacing stuff. Thanks in advance.
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Old Nov 12, 2006 | 10:03 PM
  #2  
JAFO's Avatar
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Default this sounds a little like a headlight switch problem.....

also known as a combiswitch. this tech may help or search for combiswitch.<ul><li><a href="https://www.audiworld.com/tech/elec114.shtml">https://www.audiworld.com/tech/elec114.shtml</a</li></ul>
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Old Nov 13, 2006 | 09:14 AM
  #3  
ChooChooNongNongHead's Avatar
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Default did you run new dedicated ground wires to the ballasts or are you using the OEM wires?

sounds like a grounding issue.
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