I have an opportunity to buy a 2013 A6 with less than 5000 miles for a good price. However, the car had the transmission replaced by the dealer and since it took more than 30 days the owner requested a new car and got one. VW bought this car back and sold it at auction. My question to the mechanics out there is would there be any concerns with this car?

Thanks,
A6inTexas
2004 2.7T