THERMOSTAT UNIT - R+R

Operation 1088C30 · WATER PUMP AND THERMOSTAT

2.2

Removing

- Position the vehicle on a lift.

- Make sure that the ignition key is in the OFF position, then disconnect the battery terminal (-).

1. Remove the soundproof cover secured to the engine by three pins.

1. Undo the coolant drain plug on the coolant pump and drain the coolant.

Collect the coolant in a suitable container.

1. Disconnect the electrical connection from the engine coolant temperature sensor.

2. Loosen the collar and disconnect the upper coolant input sleeve to the radiator, thermostat side.

3. Loosen the collars and disconnect the coolant delivery pipes to the climate control system heater, thermostat side.

4. Undo the engine coolant temperature sensor and remove it.

The engine coolant temperature sensor must be removed to gain access to one of the thermostat bolts.

5. Undo bolts (5a) and remove thermostat (5b) with the rigid coolant intake pipe to coolant pump (5c) and o-rings (5d).

1. Working at the bench, separate thermostat (1b) from the rigid fluid intake pipe to water pump (1d).

2. Remove the seal.

Refitting

1. Tighten the coolant drain plug on the coolant pump to the specified torque.

Apply silicone paste to the plug before fitting.

- Install the rigid fluid intake pipe on the coolant pump together with a new sealing ring.

1. Refit thermostat (1a) complete with the rigid coolant intake pump to coolant pump (1b), new o-rings (1c) and secure by tightening bolts (1d) to the specified torque.

Spread the sealing ring with silicone grease (white).

2. Place the engine coolant temperature sensor in its housing and tighten it to the recommended torque.

3. Connect the coolant delivery and return pipes to the climate control system heater, thermostat side, and tighten the band.

4. Connect the upper coolant input sleeve to the radiator, thermostat side, and tighten the band.

5. Connect the electrical connection to the engine coolant temperature sensor.

- Refit the soundproofing cover in its seat and secure to the engine with the three pins.

- Connect the negative battery terminal.

Op. 0010T20 ENGINE COOLANT - CHANGE

- Remove the vehicle from the lift.