A friend of mine used to sell several different brands of german cars. His line was this: Audi’s are amazing cars but don’t buy one with over 70k miles on it without a really good warranty because it will cost a fortune to fix.
Mine is a a 2007 with well over 100,000 miles and so far no repairs beyond routine maintenance. I hope that I’m one of the lucky ones but my little beast runs like a charm.