My ABS light, parking brake failure, and esp lights all came on at the same time while driving my 2005 Audi A6 4.2 S-line model through a sudden snow storm in Colorado. My ABS immediately failed and my brakes locked, causing me to lose control of my vehicle, and fortunately I avoided a crash (I was at low speeds). The quattro all wheel drive was also disabled at this time and I was unable to gain traction on the icy road. This could have been a devastating crash resulting in injuries if I had been going the speed limit that night. I immediately took my car in for service on 12/2/09 and was told I needed to have the ABS module replaced at a cost of around $1600. Why was this not a recalled part? according to the service tech at stammler Audi in boulder, co it is a very common problem with the 2005 model year because it is the first year to have some new technology involved in the vehicle's driving systems. I am extremely upset that there is nothing I can do but pay out of pocket for a defective part, that Audi also agrees with, just to drive safely on the roadways.

- Longmont, CO, USA