i have the same problem with a 2017 q3 .. spoke to dealership monday .. and are getting inundated with calls with the same problem .. he said they had a car in today put in on scanner showed no faults .. he said mine was the first 2017 model with this problem .. most have been 2015 .. he said to call back in 2 weeks if still not working .. and for a recall has to be agreed by audi in germany . surely they will have. a recall on this problem ?? but everyone need to call local dealer to let them know