What component or system failed or malfunctioned, and is it available for inspection upon request" Power Train system failed also engine light is now on How was your safety or the safety of others put at risk? Me and my toddler were in the vehicle when it started to jerk in bad traffic. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the mechanic said this is a serious problem and i should be concerned. He stated i should not drive my vehicle. It was inspected by a certified mechanic. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear" No, everything happen at one time.

- Baton Rouge , LA, USA

I was entering the interstate and accelerating to merge with the traffic. When I reached about 70 mph the car stalled and a message appeared, transmission faulty, no reverse, safe to continue to drive. The car was drivable at a low speed and a high rpm. After having it towed to an Audi dealership, I was informed that the transmission would need to be replaced. According to the dealership, the mechatronic unit was faulty due to an unknown short in the transmission.

- Helena, AL, USA

Gearshifter sensor going off. Been told this shifter issue can cause car to shift into a different gear at any given moment. Read plenty of forums reporting the same thing.

- Milan, IL, USA

Fault codes: P072C00, P072B00, P174A00, P072600, P179D00, P173400. Name of codes in order above, Stuck in Gear 1, Stuck in Reverse, Valve 3 in partial transmission 1, Engine Speed Inp.Circ., Cooling oil valve, Starter release from the selector level sensor system.

- Cottonwood Heights, UT, USA