Jaguar s-type how to bleed a cooling system on jaguar s-type

The heater is controlled by a 'variable solenoid water valve' that is controlled via the Air-conditioning module. These valves are prone to failure after a few years service. Another cause is if you have refilled the cooling system, the heater matrix sometimes airlocks, this can be overcome by bleeding the hose at high level by the heater hose in the engine bay.
Good luck -hope this helps

sounds like pump but may have air lock as you had the hose issue bleed the cooling system as per the workshop manual and see if that helps as a first step

On the cooling system, there should be a bleeding screw

it has abs and how did you bleed it. abs has to bled with the pressure in the system with no power on

it could be one of several things causing the problem,
faulty thermostat
faulty water pump
blocked radiator
blown head gasket
cracked head
timing
take the car to a radiator repairer and have the cooling system checked, they will tell you what the problem is in a short period of time

sounds like the system is low on coolant take it in and have the system checked for a leak and have the system recharged.

change the camshaft position sensor ... worked for me

What I do is park the car uphill. Let it cool, open the cap, start it, and let it warm up until coolant flows in the radiator. Add coolant and let the air burp out until there is good flow with no bubbles coming up.

It may be that the system is airlocked, this can happen after work on the cooling system - if most of the water has been lost. If you think there is no damage to head gaskets or other seals between engine and coolant system or leaking hoses - try bleeding the system as you fill it by venting air from the top hoses when engine is cold (for safety).
hope this helps - good luck.

it should be on the bottom of the radiator