Vauxhall Vectra engine overheating heaters inside blowing cold air

Did you get head tested / checked when gasket replaced ? Have you tried bleeding cooling systyem ?

yes i had the head pressure tested everything was ok,havent bleed the cooling system dont know how to do it any advise would be very much appreciated.

nuggy srcap it

Normally should self bleed , but find the highest pipe on the engine and just disconnect it very slightly at the clip / joint to release any air in the system .Check hoses going to heater matrix are warm .