Where is the thermostat located and how do you replace it located on a v reg golf 20 gti?
not an expert but might be good start for you. Follow the hose which leads from the bottom of the radiator to the engine. There should be a a plastic manifold fitting thing. That's the thermostat housing.
Helped a mechanic friend of mine replace the thermostat on my 1993 GTI 2.0 8v (2E engine) recently. Easiest if done from underneath.The thermostat housing is behind the bracket that holds the pas pump etc.Undo the pump bolts and swing it out of the way.Can't remember if we had to do the same with the alternator.