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Replacing the Car Thermostat

Model: Volkswagen Transporter T25, T3, MK 3 - Years 1979-1990
Part: Thermostat

The thermostat is a device that manages the temperature of the car. When it fails, it needs to be replaced to avoid engine failure. Once you have purchased the new thermostat, start working on the car after it has been turned off for a few hours to avoid burns. First, remove the radiator cap or the expansion tank cap. Then disconnect the return hose from the engine of the coolant, usually found at the top, and collect the coolant in a suitable container. Once the hose is removed, you will be able to locate the thermostat and proceed to detach it.

Updated on 13 February 2026 by ScegliAuto

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