I'm looking at buying a Audi A7 3.0L TDI Premium Plus with approx. 71,500 miles on it. I usually go to a forum and find a nice thread on a year range of vehicles that are a "Buyers Guide", a batch of all the little things to look into when purchasing the specific vehicle. I can't seem to find one here or any of the other two major Audi forums so I'm asking the community, what issues and big ticket items should I be looking for on this vehicle?

I know about the whole US VW/Audi Diesel emissions, and the vehicle has a VIN check and complete service records through the local Audi dealer. One recall on it, but I haven't looked into what it is.