My 2012 A3 shows the following 3 warning lights:
EPC,
Electronic stabilisation program,
Emission control system.

It has happened twice before and each time Audi assured me it was fixed. Am taking it to the garage next week for the third time but Audi want to charge a £60 diagnostic fee. I intend to argue that as this is a pre-existing problem I should not have to pay any such fees.

Please get in touch if anyone has similar issues. thanks