THERMOSTAT UNIT - R+R

Operation 1088C30 · WATER PUMP AND THERMOSTAT

2.0 JTD 8V

Removing

- Position the vehicle on the lift.

Op. 7055B54 UNDER-ENGINE GUARD - R R

See in Op. 1048A21

See in Op. 1048A50

Op. 1048B16 PIPES AND/OR ELBOW BETWEEN TURBOCHARGER AND THROTTLE CASING - R.R.

Op. 1048B12 RIGID PIPE CARRYING AIR BETWEEN TURBOCHARGER AND INLET MANIFOLD - R+R

- Position a suitable container for collecting the coolant.

1. Disconnect the upper hose (1a) and the lower hose (1b) from the thermostat.

1. Using suitable pliers, open the bands retaining the coolant supply and return pipes to the engine oil heat exchanger.

1. Undo the bolts fixing the fuel return manifold mounting bracket.

2. Release the return manifold from the housing and place it outside of the work area.

1. Disconnect the electrical connection for the water temperature sensor.

2. Disconnect the recirculation pipe.

3. Disconnect the water pipe to the exhaust gas heat exchanger from the thermostat.

1. Undo the fixing nuts.

2. Remove the turbocharger air outlet rigid pipe mounting bracket.

1. Undo the fixing nuts and bolts.

2. Remove the thermostat unit from the housing in the cylinder head.

Refitting

- Fit the thermostat in the housing in the cylinderhead checking that it is correctly engaged with the rigid coolant pipe and tighten the fixing nuts and bolts to torque.

- Fit the turbocharger rigid air outlet pipe mounting bracket and tighten the fixing nuts.

- Connect the water pipe to the exhaust gas heat exchanger to the thermostat.

- Connect the recirculation pipe.

- Connect the electrical connection for the water temperature sensor.

- Place the return manifold in position and tighten the fixing bolts.

- Using suitable pliers, close the bands retaining the coolant supply and return pipes to the engine oil heat exchanger.

- Connect the upper hose and the lower hose to the thermostat.

Op. 1048B12 RIGID PIPE CARRYING AIR BETWEEN TURBOCHARGER AND INLET MANIFOLD - R+R

Op. 1048B16 PIPES AND/OR ELBOW BETWEEN TURBOCHARGER AND THROTTLE CASING - R.R.

See in Op. 1048A50

See in Op. 1048A21

Op. 0010T20 COOLANT CHECK DENSITY AND TOP UP IF NECESSARY

Op. 7055B54 UNDER-ENGINE GUARD - R R

- Remove the vehicle from the lift.

2.3 JTD 16V

Removing

Op. 7055B54 UNDER-ENGINE GUARD - R R

See in Op. 1088D18

1. Undo the upper and side bolts securing the timing belt protective cover.

1. Disconnect thermostat electrical connections (1a) and (1b).

2. Undo the bolts securing the thermostat to the cylinder head.

3. Remove the thermostat unit from the cylinder head.

Refitting

- Change the thermostat o-ring.

- Fit the thermostat unit in its seat on the cylinder head.

- Tighten the bolts securing the thermostat to the cylinder head to torque.

- Connect the electrical connections for the thermostat.

- Tighten the upper and side bolts securing the timing belt protective cover.

See in Op. 1088D18

Op. 0010T20 COOLANT CHECK DENSITY AND TOP UP IF NECESSARY

Op. 0010T21 COOLANT CHECK DENSITY AND TOP UP IF NECESSARY

Op. 7055B54 UNDER-ENGINE GUARD - R R

2.0 16V

Removing

- Disconnect the negative battery terminal.

See in Op. 1048A21

Op. 1048A39 SLEEVE FROM AIR CLEANER TO RIGID PIPE - R R

Op. 5510C10 IGNITION COIL/S - R+R

Op. 7055B54 UNDER-ENGINE GUARD - R R

- Position a suitable container for collecting the coolant.

- Lower the vehicle.

1. Disconnect the electrical connection for the cam angle sensor.

2. Disconnect the electrical connection for the engine coolant temperature sensor.

3. Remove the band (3a) and relese the coolant oulet hose from the thermostat (3b).

4. Remove the band (4a) and release the heater coolant supply pipe (4b).

5. Undo the retaining bolts (5a) and remove the thermostat unit (5b).

Refitting

- Fit the thermostat unit in place.

- Tighten the fixing bolts to the recommended torque.

- Fit the thermostat unit inlet and outlet hoses and restore the bands removed previously.

- Connect the electrical connection for the cam angle sensor.

- Connect the engine coolant temperature sensor electrical connection.

Op. 7055B54 UNDER-ENGINE GUARD - R R

See in Op. 1048A21

Op. 1048A39 SLEEVE FROM AIR CLEANER TO RIGID PIPE - R R

Op. 5510C10 IGNITION COIL/S - R+R

Op. 0010T21 COOLANT CHECK DENSITY AND TOP UP IF NECESSARY

- Connect the negative battery terminal.