My wife has a 2010 Q5 3.2 with the HID xenon headlights. One of the bulbs has gone out, and I have heard horror stories about the potential cost and complexity of figuring out whehter it might be the buld, the ballast, or other components. One guy told me it could be $1,000 to do both sides.
I can't seem to find anything on google for this, might someone have a video link for diagnosing, replacing, etc? Also, a good supplier for the replacement parts? Safe to assume I shoudl start by swapping out the bulbs?
Thanks in advance,