This is my first experience wiuth Audi after owning Volvos, SAABs, and BMWs. I bought the car this past summer with 32K miles on the Audi CPO program. The brakes are touchy/grabby, but I've learned that's a common trait with the A6, and I've learned to live with it and adjust. At 36K miles, the engine quit in traffic, and I had to have it towed to the dealer for repair. It turned out to be a faulty low fuel pressure sensor, and this was repaired under warranty. The following week, a simple daylight running light bulb went out, and this an only be repaired at the dealer!
The car is a beautiful style and handsome even 4 years after its birth. Interior is top notch and I even prefer it to the 2012 loaner A6 I am driving this week. Fuel economy is outstanding and the car just glides at 90mph. However, the CVT transmission is quirky and I would opt for the Quattro next time around. Car is sluggish off the mark and much of that is around the CVT. I had it in twice this year for rough idle and jerky driving when cold. Also, Audi refuses to update their software in a timely manner for the Media Center and is behind the curve of technology despite what the commercials tell you. Remote doesn't roll down windows and no streaming music from your phone to Bluetooth.
Amazing car to drive in the winter. The car looks great and is subtle but still turns heads. Great sound system and love the rear heated seats. But, the reliability on this car is horrible. I've never been to a dealership this many times. The check engine light has come on today for the 7th time in the last two years. I don't care what the excuse is, a new 50k car should not have these kind of problems this early on with this few miles. I'm getting annoyed with this car, despite it's capabilities during the winter. I wish Honda could just buy out their quattro awd system. It'd be the perfect marriage.
Update to my earlier review. Now I have over 105k miles on this car that I purchased new. It goes through brakes but it has otherwise been faultless. Still love driving it. Same great ride, no rattles and no issues. Recently had to add some coolant, but other than that, just routine oil changes.
This is my third Audi A-6 (had a 2000 and 2004 A-6 turbo 2.7 models). I thoroughly enjoy the car. It is by far the best vehicle I've owned. Drove it down to Virginia and back two weeks ago moving with traffic at 75+ and averaged 28 mpg on the highway. It accelerates nicely in Sport mode, has lots of room. The only real annoying problem I had occurred at 46,000 miles - the starter relay switch went - the car just wouldn't start one rainy evening. I had to have the car towed, however Audi gave me a loaner, paid for the tow and repaired it quickly. It has more interior room than the Mercedes E and BMW 5 series. I highly recommend this car.