Jaguar x-type air only blows from defrost vents

SOURCE: 2002 Jaguar S-Type heater blowing but not heating

hello melissa it sounds that your thermostat is stuck open have replaced goodluck please rate

SOURCE: I have a 2004 S

I had the same problem and found that this is caused by the Dual heater Control Valve malfunctioning.

The DHCV can be purchased at Rock Auto Parts for around 150.00 and can be replaced in around 30 minutes. This valve controls the hot water flow for the heater core for each side of the passenger compartment and when it fails, it's default is "open" which allows the hot water to flow freeley for whatever side failed. It is located on the passenger side front about 6 inches down from the top of the radiator. You will need some patience and some mechanical skill to replace it but its not terrible.

SOURCE: heater in 2001 jaguar s type not blowing hot air

check for hot water, check for power to blower, do a little work yourself before asking questions, if you can't do this then you really need help

SOURCE: 2000 jaguar s-type heat does not work from the driver side vent.

Hi there is a, dual valve down on the right side of the radiator to split the heat to each side. are the pipes hot where they enter the car be careful       D   

SOURCE: 02 Jaguar S Type - Heater blowing cold air

Has the vehicle overheated recently, if not there is a failure of the Coolant from engine valve controller, that measures flow through the Heater Matrix. Come back with more, as necessary.
Regards,DT