 This car seems to eat oil. I bought this vehicle used with 33k miles on it from and audi dealership in peoria az in May of 2016. with in a week of owning it it was in the shop for the o2 sensor. Normal and under warranty so I didn't pay attention. Took it back in on October because i had had to put 2 quarts of oil through. Had an oil consumption study test done. Audi says oil consumption of 1qt every 1.5k miles is normal and not a problem. Fast forward to Apr 2017, CEL came back on, took to dealership and the same o2 sensor was bad again. they couldn't fix it then due to recall filling up their garage. One week later while driving i hit the breaks hard and the car warning lights came on saying that it was out of oil. had to put 1 quart of oil in it right away and took back to dealership. They said it was 1.5 quarts low meaning that my car was 2.5 quarts low without any oil level warnings going off. This car has no dipstick and the oil is electronically monitored. Raised hell about oil consumption and they finally dig a diagnostic. My oil sensor was dead. They replaced it. May 2017 driving to work lost power and the car was stuttering. Took the car to another dealership in scottsdale. 4th cylinder ring failure, only able to hold compression of 35psi, replacing the engine. 48k miles and 2 months out of factory warranty. Audi won't do anything about it...looks bad for them. I bought my wife a q5 from the same dealership after i bought my a6. We traded in her q5 for a lexus nx200t as soon as we started having problems with the a6. So i have a car that bought with 33k miles on it and put 15k highway miles on it commuting in 1 year and the engine is blown and needs to be replaced. Pass on this vehicle. in fact run away.