Came in for a second opinion, long story short, not only did CARS fix my problem that day, but they didn't charge me for a thing. What was the original quote at the dealership? $2100. They tried to get me for things that didn't exist. David switched around a couple of faulty sensors, test drove the car three times, shook my hand and sent me on my way. Eddie told me no charge, so naturally I told Eddie he has my future business and all the positive word of mouth I could give him. The reviews are true, these guys know Audis and they don't try to charge you for their time if they don't have to. PS: David had my car for over two hours, not even a diagnostic fee. Thanks guys, you are appreciated.