Not necessarily. There's a thread on this site where someone was contemplating spending up to 500 quid for a head gasket renewal.... after checking the basics first, the problem was sorted with a 6 quid expansion bottle cap. Could be something simple so check the 'usual suspects' first. Your car will at least need its cooling system to be properly bled to eliminate any air trapped in the system. That could be bad news if you continue to run the car.DenYax said:My Rover 100 is blowing air up through the expansion box of the cooling system. Am I right in thinking the head gasket has failed?
Thanks for your help