RepairPal is your advocate for car care advice and guidance

Q: What might the reason my engine is overheating? on 2004 Volkswagen Passat

The car overheated out of the blue but when I turned on the heater, the temperature came down.
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
start with the easiest first, check your coolant level and top it off if needed. then let your car idle until it comes up to operating temp and CAREFULLY check your coolant level again. if it is low you will have to examine all hoses and connections for leaks. after that the other possibilities are a bad thermostat or a radiator fan malfunction. describe the conditions at the time; stop and go traffic/ long periods of idling/ air conditioner on or off/ etc.
Didn't find what you were looking for?