I installed at 4300k HID kit yesterday that I got from eBay, all in and working but when I put the xenons on the Word "brake" flashes on the DIS and the ESP light stays on. I scanned the car last night with vag-com and it found errors in the abs module, convenience module etc. I will post the exact codes later when I'm at the computer. I ended up taking them back out and putting standard bulbs back in, the car was fine with no vag-com errors. Any ideas how to fix this or are the HIDS just not compatiable with the Audi? I'm annoyed as it looked the ticket..