wndow regulators are a known fail item(but like many things VW covered it) 7 years from the DOM is what VW covered them for. pretty generous actually.
these cars are all in who owns them and how they are maintained. luckily i bought my GTi with 7k miles on it. my A4 was a 1 owner, dealer maintained car, only problem was a wastegate actuator, which was a problem with borg warners manufacturing.
my current car is a 1 owner, older gentleman, dealer serviced. i guess im just lucky.