I have a 2009 Audi S5 cabriolet and riding down the road one day a warning light came on showing "EPC" error. I have taken it to two different mechanics to basically be told to take the car to an Audi centre. I have done that and they have now charged me $1800 in labour to tell me they can't specifically locate the problem, but they think I need a new engine, which they insist is very rare in Australia. Do you have any advice for me?
I wouldn’t accept the advice without getting another opinion, one that is definitive, not a guess. You could take it to a mechanic who specializes in Audis and VWs and they should be able to give you an opinion you can believe.