returned my a5 today, Ive had it just over a week and its been at audi for 4 days now, i have a friend who works at another audi dealership as a mechanic. He found out for me what was going on. This is no joke, he stated there was over 8 major parts replaced, the windshield, which had a leak at the bottom, my ecu had to be updated but the ecu crashed so they had to install another one, the advanced key thing wont work had to replace that, the main beam headlight wont come on even though the dash is lit, both door sensors are not working, so the interior light does not go off, and the rear led light is malfunctioning. the best part of all this is that the dealership didnt want to give me back all my money. After speaking with the manager, they refunded me almost all my money back, minus the 129 miles i drove. My mechanic friend at audi stated they have had several a5 come in for mechanical problems and have had 2 returned. I will never buy AUDI again, they are terribly made.