Turbo wheel sheared off the shaft and stalled the car while driving at < 5mph in parking lot. unable to then start car and move it - needed to be pushed to one side to await the tow truck. there were no symptoms or warnings or cel prior to the failure. others have reported same failure at higher speeds or even on highways. this failure mode is dangerous and could result in loss of vehicle control. audi should be performing a recall on this for all the vehicles they install this engine model into. i was only recently made aware of the ability to report this issue here, hence the delay in my doing so.