hi tony,turn your heater temp dial to the hotest setting, take the top hose off from the rad end, fill hose with water, take your pressure cap off of the main coolant reservoir , and keep filling the hose up slowly, put your ear to the reservoir and you will hear the water glugging down, keep filling untill you reach the top of the reservoir, refit hose to rad, run engine and top up coolant, re fit pressure cap, run engine untill fan cuts in and out (keep an eye on temp gauge) hope this will help you. Dean.