Jaguar XJ (X350). Manual — part 963

7 . Disconnect the ECM electrical connector.

8 . Remove the instrument panel lower trim panel.

1) Remove the retaining clips.

2) Remove the instrument panel lower trim panel.

9 . Remove the ECM retaining bracket.

10 . Remove the ECM.

1) Detach the retaining clips.

2) Remove the ECM.

Installation

1

.

CAUTION: Make sure that the electrical connector is located correctly in the ECM.

Do not force or overtighten the electrical connector. Failure to follow this instruction may

result in damage to the component.

CAUTION: Make sure the ECM support bracket is located correctly.

To install, reverse the removal procedure.

Tighten to 5 Nm.

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Engine Coolant Temperature (ECT) Sensor
- 4.2L SC V8 - AJV8 (18.30.10)

Removal

1

.

WARNING: Never remove the coolant expansion tank pressure cap under any

circumstances while the engine is operating. Failure to follow this instruction may result in

personal injury.

WARNING: To avoid hot coolant or steam blowing out of the cooling system, use

extreme care when removing the coolant expansion tank pressure cap. Wait until the

engine has cooled down, then insulate the coolant pressure cap with a suitable cloth and

slowly loosen the coolant expansion tank pressure cap until the cooling system pressure is

released. Do not remove the coolant expansion tank pressure cap. Step back while the

pressure is released from the system. When all of the pressure has been released slowly

remove the coolant expansion tank pressure cap (still with the suitable cloth in position)

from the coolant expansion tank. Failure to follow this instruction may result in personal

injury.

Release the cooling system pressure.

Remove the coolant expansion tank pressure cap.

2 . Remove the air cleaner outlet pipe.

For additional information, refer to Air Cleaner Outlet Pipe (19.10.31)

3 . Disconnect the engine coolant temperature (ECT) sensor electrical connector.

4 . Remove the ECT sensor.

Remove and discard the ECT sensor O-ring seal.

Installation

1 . To install, reverse the removal procedure.

Install a new ECT sensor O-ring seal.

Tighten to 17 Nm.

2 . Fill the cooling system up to the MAX mark on the coolant expansion tank.

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