Audi=No fault code, no idea
Give that the real problem was buying an Audi then most of us have a problem. i thought that by paying a bit extra and buying a quality make from a main dealer i would get a reliable car but truth is its no better than any other car i have owned including French. My Peugeot was troublesome but the dealers were 100% better at dealing with it than Audi have been. i think to be told by a main Audi franchise that if there is no fault code there is no problem is patronising and just totally incompetent.