One problem related to radiator has been reported for the 2004 Volkswagen Jetta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Volkswagen Jetta based on all problems reported for the 2004 Jetta.
I have a 2001 vw Jetta. When it gets hot outside (sometimes) the vehicle loses power while driving then regains it. Also when it starts acting up if u stop the car will shut off and u gave to restart it. I have took the care to vw they don't know what is wrong with it. Replaced several parts (throttle body, dwn flow 02 sensor, coil pack plugs, catalytic converter) still don't know. The only thing the computer is showing is cooling system performance. One vw dealer said there was a wiring problem that sometimes causes similar problems. If this is the case why is it not a recall since the wiring is from dealer. The inside temp on the care never runs hot or the radiator. Thank you for your help.