VW Jetta
VW Passat

Where is the thermostat located on a 1998 VW Passat?

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Wiki User
2005-05-11 15:13:29

It is mounted inside the water pump assembly which is

essentially buried in the front of the engine. When I recently

replaced my timing belt I also changed my entire water pump

including the thermostat, just in case. Be aware that this is an

entire day job for a do-it-yourselfer. I would suggest also

changing the timing belt as you will be pretty much ripping apart

the entire front end of your car to get to the waterpump. Go to and check the forums. There is a forum called

"Garage" that has a complete write-up of this procedure.

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