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How to Replace the Thermostat in the Volkswagen Passat

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

In this tutorial, you will see how to replace the thermostat in the Volkswagen Passat, a simple operation that requires good manual skills. First, wait for the engine to cool sufficiently, then open the bonnet and disconnect the negative terminal of the battery. Next, open the expansion tank cap, drain the system by disconnecting the lower radiator hose, and proceed to disconnect the thermostat housing. At this point, you can open the plastic housing, remove the thermostat, and fit the replacement by following the reverse procedure.

Updated on 15 September 2026 by ScegliAuto

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