Jaguar XJ (X350). Manual — part 606

CAUTION: The supercharger cooling system must be maintained with the

correct concentration and type of coolant solution to prevent corrosion and frost
damage. Failure to follow this instruction may result in damage to the vehicle.

Fill the cooling system up to the MAX mark on the coolant expansion tank using a fifty
percent mixture of Jaguar Premium Cooling System Fluid or equivalent, meeting Jaguar
specification WSS M97B44-D and fifty percent water.


12.

CAUTION: Do not over tighten the coolant expansion tank bleed screw. Failure

to follow this instruction may cause damage to the vehicle

Install the coolant expansion tank bleed screw.

•

Tighten to 1 Nm.

13. Install the coolant expansion tank pressure cap.


14. Remove the engine cover.


15. Remove the supercharger coolant filler plug.

•

Remove and discard the sealing washer.

16. NOTE:

Place a suitable cloth around supercharger fill port.

11.

Top up the coolant through the supercharger fill port.


17.

CAUTION: Coolant may spill from supercharger fill port when ignition switched

on.

Switch ignition on.


18. NOTE:

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.


19. Switch the ignition off.


20. Install the supercharger coolant fill plug.

•

Install a new sealing washer.

•

Tighten to 45 Nm.

•

Clean off any spillages.

21. Install the engine cover.


22.

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.


23. SET the heating system to MAX heat, the blower motor to MAX speed and the air

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distribution to instrument panel registers.


24.

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.


25. Switch off the engine.


26. Allow the engine to cool.


27. Release the cooling system pressure.

•

Remove the coolant expansion tank pressure cap.

28. Fill the cooling system up to the MAX mark on the coolant expansion tank using a fifty
percent mixture of Jaguar Premium Cooling System Fluid or equivalent, meeting Jaguar
specification WSS M97B44-D and fifty percent water.


29. Install the coolant expansion tank pressure cap.

Diagnosis and testing

Supercharger Cooling

1 . Verify the customer concern by operating the system.

2 . Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart

Mechanical

Electrical

•

Leak(s)

•

Hose(s)

•

Charge air cooler radiator

•

Supercharger cooling water pump

•

Coolant expansion tank

•

Coolant pressure cap

•

Radiator

•

Engine cooling water pump

•

Cooling fan

•

Fuse(S)

•

Wiring harness

•

Electrical connector(S)

•

Engine coolant temperature sensor

•

Cooling fan motor

•

Supercharger cooling water pump

1 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible)

before proceeding to the next step.

2 . If the cause is not visually evident, verify the symptom and refer to the Jaguar Approved

Diagnostic System.

Component tests

Pressure test. <<303-03>> Coolant pressure cap pressure test. <<303-03>> Thermostat test. <<303-

03>> Radiator leak test. <<303-03>>

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