I have a 1999 s type the heater refuses to put out hat air although the aircon blows cold I only get cold air when I raise the temperature on the controls. Jaguar have said that it requires a thermostat housing at over £220 plus fitting. Anyone know if it is possible to refurb the thermostat , I believe that it is the control valve ob the lower right hand side of the radiator, there is a connector feeding what looks like two solenoid valves that someone suggested may be seized closed and not letting hot water to the heater matrix in the system.
any ideas please a cold jag driver