Still not had chance to look at this. In the recent snow thermostat has being going up to into danger red (been slowing down to counter the measure).
Checked this morning not much coolant certain not at the correct min level. Also looked by the thermostat for the first time, I think what i can see bear in mind im not a mechcanic is leaking coolant which confirms my problem? Can someone check this is correct before I order the parts?