i have a 2002 jetta tdi. i've had problems starting the car ever since i bought it. i've had the manifold intake replaced, the relay to the glow plugs replaced. had the glow plugs checked and the harness for it. my problem with my car now is that i can let it sit over night and it starts normally. but after i've driven the car a while and then park it. ( i use this car for work). if it sits longer than one hour, especially during the winter, i have a lot of trouble starting it. this morning my car wouldn't start right away and the longer i tried to start it the worse it got. pretty soon it was only the battery and the engine stopped trying to fire. anyone have or have had this problem? how much will it cost to fix it in general? it seems that tdi's have lots of temp sensor problems.