Thanks for the reply's I went for a drive after I change the thermostat I was out for 20 mins the water level is ok and the temp was halfway on the dash and it was still blowing cold
Hi all I'm new to this forum I have just bought a disco 300 tdi and the heater doesn't blow hot air out when I'm driving I've just changed the thermostat and it hasn't made a difference can any1 help me thanks Ryan