Where to start? Everything you can think of, it's the third engine in the car; front end keeps falling apart, turbo failed on it. Pretty much everything falls apart.
Gauges never worked. Took it in to get it fixed, never happened.
Don't ever ever get one. Parts cost a lot, same with repairs, and it drive like a brick.
The Volkswagen Passat you guys in the USA get is built in Brazil, which is why it is of inferior quality, they are actually good reliable cars elsewhere (the German built ones most other countries get).
We get the German ones too, please check your facts.