 This car is so expensive to fix even if you are a mechanic.  There is nothing that you or any mechanic can work on that doesn't include removing 9 different things in order to access the parts.  It is a NIGHTMARE.  I got more for my car when I parted it out than what I paid for it because the parts are ridiculously expensive, the dealers control access to parts and the part fail consistently.  Based on just the common misfires on this model (which could be one of 10 different problems) I would NEVER buy a used Audi ever again.  Positives... Really great sporty drive, great sound system, great look.