Heating jaguar 1996 xj6 all works but no heat at all

sounds like the matrix door may be stuck...please have the temp blend doors check along with the matrix

MILES? CAN BE A PLUGGED HEATER CORE, HEATER CONTROL VALVE? ARE THE HEATER HOSES HOT GOING INTO THE FIREWALL??

Check to make sure thermostat is working. Thermostat opens and closes the valve for antifreeze to circulate.

All cars have what is called a heater matrix , this car has, it is inside the car behind the dash, the purpose is to provide heat in side the car, if the car is running at normal operating temp you thermostat is ok, the heater in the car is known as a heater matrix and will block up due to lack of use as water on passing throu when you have the heat on in side the car , hence the water leaves risidual that blocks it, if you keep a good level of antifreze/summer coolant in the systym it will prevent this, it is also the first palce to be affected when you lose water from the cooling systym, i will foward the detail how to clean it out, as removal is very labour intensive,

heating blows only cold air on my jaguar xj6 on a p registration

five weeks ago my fan belt snapped and when i replenished the overfill to radiator i used only water

I have the similar problem with both my Jaguars, one is a 1988 Jaguar XJS, the other is a 1987 Jaguar XJ6, both blow COLD air out some vents while it blows warm air for heat. I heard it had something to do with the cold air blowing as a dehumidifier, I don't know if this is true, but it is really annoying to have both cold and warm air blowing when I need heat in these cold Canadian winters. If you find out please drop this website a note and let us know how you solved it. thanks.

Lock your doors with key and hold until the alarm activates, then unluck car and start

Nothing, you must fit a working fan, wether new or secondhand.

could be related if condensation is on inside of windshield indicates heater core is leaking in heater box under dash on pass side car may be over heating check coolant level, coolant fan, and thermostat if working, also keep eye on temp gage if equiped