These guys know their Audi's. They're quick, clean, and very expensive. That's what you get for buying Audis. We put our A4 in for a 90K service - and a weak acceleration / poor mpg issue. They loaned us a 3.5 A6. When they called to say the car was ready (Thurs p.m.) , my wife said "that's a shame, I really like the A6". Their answer was " Oh, Ok. Why don't you keep it over the weekend. We'll see you around 9 on Monday". Our Audi is running well, and mileage is up by 3 mpg. High cost, but they're good.