Volvo 340 1.7 in the UK Does anyone happen to know: A - The total volume of water in the cooling system. B - the percentage of antifreeze needed to fully protect the coolant from freezing up. The car is in the UK and I would guess it would need protecting to somewhere betwee -20C and -25C (to allow for wind chill factor). C - when draining coolant before replacing with antifreeze should one have the heater set to cold (car has no air con) so as not to drain water from the heater matrix and help reduce the possibility of getting an airlock in the pipes. Thanks Andy