It seems it really depends. My '12 Jetta TDI was super reliable, never had a single problem apart from it destroying the earth and lying about it. But other people with the same year, same car, had all sorts of problems. I feel like there's perhaps quality control issues coming off the line in Mexico.

Our new-used '13 Audi Q5 is made in Bavaria. So we shall see how its quality compares. So far no problems.