I have bled the system as per the You Tube video , the fans work on the radiator and all pipes seem to be at the correct temperature. The heater does however take an eternity to come on and the rear heater does not work at all (I don't know if this is linked).
Can anyone offer advice, I do not have the cash to go down the head gasket route again but have thought of radiator/water pump : any help appreciated!

Regards
Neil