neil-gta wrote:Overheating probs turned out to be a dodgy thermostat that had failed shut instead of open. No water was getting into the radiator at all so the only thing cooling the engine was me having the heaters on I think. Thanks for all the advice.
It must have worked some of the time (or semi opened) or it would have just overheated everytime.
If the thermostat was stuck closed, you wouldnt get any hot water to the heater matrix.
It was probably full of the crap that was clogging the radiator.