I have a 2002 Jetta, not the TDI but a VR6.
Anywho, the biggest complaint i have about the car is the lousy quality of the electrical components and some of the plastic knobs and handles.
I constantly have to replace little electrical pieces, switches, relays, knobs, indicators lamps and such.
Just yesterday the latch on the glove box broke (again!) because the flimsy plastic retainers were completely brittle and snapped.