I just replaced a xenon headlight on a 2006 Audi A6. I purchased a brand new headlight from the dealership with all new parts (bulbs, ballast, module). I installed it myself and the warning light is still on. Any ideas?

 

I think you have to clear it with the Vag-com

 

it shouldnt need a vag com.. it should just go away once you do the start up and the computer system sees it fixed. you might have another problem, but i couldnt tell ya for sure.

 

I am betting that you need a vagcom to reset it. The C6 needs a vagcom to do many things including reseting the service reminder.