Cooling System Draining and Vacuum Filling
Cooling System Draining and Vacuum FillingWARNING: To avoid having scalding hot coolant or steam blow out of the cooling system, use extreme care when removing the coolant pressure cap from a hot cooling system. Wait until the engine has cooled, then wrap a thick cloth around the coolant pressure cap and turn it slowly until the pressure begins to release. Step back while the pressure is released from the system. When certain all the pressure has been released (still with a cloth) turn and remove the coolant pressure cap from the coolant expansion tank. Failure to follow these instructions may result in personal injury.
WARNING: Remove fuse 14 from the engine compartment fuse box prior to performing any under hood service in the area of the cooling fan when the engine is hot, since the cooling fan motor could operate if the engine has been switched OFF. Failure to follow this instruction may result in personal injury.
NOTE: The engine cooling system must be maintained with the correct concentration and type of anti-freeze solution to prevent corrosion and frost damage. Failure to follow this instruction may result in damage to the vehicle.
NOTE: Engine coolant will damage paint finished surfaces. If spilled, immediately remove coolant and clean area with water.
NOTE: Vehicles fitted with supercharged engines shown, V8 NA and V6 engines similar.
1. Set the heater controls to maximum HOT.
2. WARNING: Since injury such as scalding could be caused by escaping steam or coolant, do not remove the filler cap from the coolant expansion tank while the system is hot.
Remove coolant expansion tank filler cap.
3. WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
4. Remove the radiator splash shield.
5. Detach the electrical connectors.
6. Remove the radiator lower cowl.
7. WARNING: Eye protection must be worn.
Position container to collect coolant.
8. Remove the coolant drain plug.
^ Allow the coolant to drain.
9. CAUTION: Do not over tighten the drain plug. Failure to follow this instruction may cause damage to the vehicle.
Install the drain plug.
10. Disconnect the supercharger radiator bottom hose.
^ Release the clip.
^ Disconnect the hose.
^ Allow the coolant to drain.
11. Connect the supercharger bottom hose.
^ Connect the hose.
^ Secure the clip.
12. Install the radiator lower cowl.
13. Attach the electrical connectors.
14. Install the radiator splash shield.
15. Install the cooling system vacuum refill adaptor to the expansion tank.
16. Install the vacuum filler gauge to the cooling system vacuum refill adaptor.
17. Install the venturi tube assembly to the vacuum filler gauge.
18. NOTE: Make sure both valves are in the closed position on the vacuum filler gauge assembly.
NOTE: The coolant vacuum fill tool needs an air pressure of 6 to 8 bar (87 to 116 psi) to operate correctly.
NOTE: Small diameter or long airlines may restrict airflow to the coolant vacuum fill tool.
Connect a regulated compressed air supply to the venturi tube assembly.
19. Open air supply valve.
20. NOTE: Make sure the coolant supply hose is positioned into a container of fifty percent mixture of Jaguar Premium Cooling System Fluid or equivalent, meeting Jaguar specification WSS M97B44-D and fifty percent water. Make sure no air can enter the coolant supply hose.
Open coolant supply valve for 2 seconds to prime coolant supply hose.
21. Apply air pressure progressively until the arrow on the vacuum filler gauge reaches the green segment.
22. Close air supply valve and disconnect air supply.
23. Allow 1 minute to check vacuum is held.
24. NOTE: Close the coolant supply valve when the coolant expansion tank MAX mark is reached or coolant movement has ceased.
Open coolant supply valve and allow coolant to be drawn into system.
25. When expansion tank is full and coolant movement has ceased close coolant supply valve.
26. Remove vacuum refill adaptor and gauge from expansion tank.
27. Install the coolant expansion tank filler cap.
28. Remove the engine cover.
29. Remove the supercharger coolant filler plug.
^ Remove and discard the sealing washer.
30. NOTE: Place a suitable cloth around supercharger fill port.
Top up the coolant through the supercharger fill port.
31. CAUTION: Coolant may spill from supercharger fill port when ignition switched on.
Switch ignition on.
32. CAUTION: Do not allow the supercharger water pump to run dry for more than one minute. Failure to follow this instruction may result in damage to the vehicle.
Allow the supercharger pump to run and top up the coolant through supercharger fill port.
33. Switch the ignition off.
34. Install the supercharger coolant fill plug.
^ Install a new sealing washer.
^ Tighten to 45 Nm.
^ Clean off any spillages.
35. Install the engine cover.
36. CAUTION: Do not RUN the engine with the coolant expansion tank pressure cap removed. Failure to follow this instruction may cause damage to the vehicle.
START and RUN the engine.
37. CAUTION: Observe the engine temperature gauge. If the engine starts to over-heat switch off immediately and allow to cool. Failure to follow this instruction may cause damage to the vehicle.
Allow the engine to RUN until hot air is emitted from the instrument panel registers, while observing the engine temperature gauge.
38. Switch off the engine.
39. Allow the engine to cool.
40. WARNING: Since injury such as scalding could be caused by escaping steam or coolant, do not remove the filler cap from the coolant expansion tank while the system is hot.
Check and top up the cooling system if required.