One problem related to warning light on has been reported for the 2006 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Audi A4 based on all problems reported for the 2006 A4.
Air bag warning light is on. This is my daily driver so very concerned. Also this vehicle uses an unusually high amount of oil. I have to add oil weekly to the car. It has been doing this for a long time. I just was informed that I could report this problem.