Dsg mechatronic failure. was replaced under cpo warranty. however problem persists. while driving car goes into neutral with tpms + gearbox malfunction. this is a known problem with audi s4 2010 and 2011.
After turning my car on a gearbox malfunction warning appeared but said i could continue driving. after driving the message and service light eventually went off with everything going back to normal. the car appears to have a very common mechatronic unit issue that is part of the faulty dsg that audi has put in the b8 s4 model.