Originally Posted by
orionmojo
I'll be honest mate, bubbling in the expansion tank is probably the headgasket. i went through 2 radiators and 2 expansion tanks before i diagnosed mine.
its an expensive game with these cars. you probably have a minor fault with it, its pressurising the water system and causing to overheat.
thats my fears! or atleast that the overheating has caused the head gasket to go! oh well another job for me to tackle that i have never done before! time to buy that torque wrench i have always wanted!