Procedures

Thermostat/Temperature Sensor, Engine Coolant, Replacing

Preparation
- Remove the cap from the expansion tank.
- Install a hose clamp on the upper coolant hose.
- Raise the car. Remove the lower splashguard.
- Position a container under the engine drain cock. Drain 2 liters of engine coolant.
- Close the cock. Install the lower splash guard. Lower the car.
- Disconnect the sensor cable connector.
- Remove the upper timing belt cover.

Removing the Thermostat

Remove
- the thermostat housing cover.
- the thermostat.

Removing The Engine Coolant Temperature (ECT) Sensor
- Remove the thermostat housing cover.
- Clean the thermostat housing mating surfaces. Ensure that there is no dirt left in the thermostat housing.
- Remove the sensor.

Installing The Thermostat

Install
- the new thermostat.
- the thermostat housing cover. Use a new gasket. Tighten to 17 Nm.

Installing The Engine Coolant Temperature (ECT) Sensor

Install
- the new sensor. Use a new gasket. Tighten to 20 Nm.
- the thermostat housing. Use a new gasket. Tighten to 17 Nm.

Connect the sensor cable connector.

Finishing
- Install the upper camshaft cover. Remove the hose clamp.
- Fill with coolant.
- Install the cap on the expansion tank.

Function Test
- Test drive the engine until the thermostat has opened.
- Top up the coolant if necessary.