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How to Replace the Cooling Thermostat on VW Passat

Model: Volkswagen Passat 3BG, B5 - Years 1996-2005
Part: Thermostat

In the following video, see how to remove the thermostat valve on a Volkswagen Passat. Using a socket wrench with the appropriate sockets, unscrew the bolts on the thermostat housing cap as shown in the video. Pull off the sealing cap and remove the cooling thermostat from its seat. Once the part is removed, replace it with a new one and close the housing with the cap (tighten the fastening bolts properly with all its parts). Ensure that the thermostat valve is correctly inserted and mounted in the appropriate housing, and top up with the new fluid.

Updated on 3 March 2026 by ScegliAuto

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