C70 L5-2.4L Turbo VIN 63 B5244T7 (2003)
Coolant Temperature Sensor/Switch (For Computer): Procedures
Replacing the Thermostat and/or Engine Coolant Temperature Sensor
Replacing the Engine Coolant Temperature (ECT) Sensor
Special Tools: 951 2885
Removing the Engine Coolant Temperature (ECT) Sensor
Remove:
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the upper timing belt cover
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cable from the sensor
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the sensor from the thermostat housing. Use socket 951 2885.
NOTE: Put paper underneath the sensor to prevent coolant spillage.
Installing the Engine Coolant Temperature (ECT) Sensor
Install:
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the sensor with a new seal
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Tighten to 22 Nm, use socket 951 2885
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the upper camshaft cover.
Replacing the Thermostat
Preparation
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Remove the cap from the expansion tank.
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Install a hose clamp on the upper coolant hose.
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Raise the car. Remove the lower splashguard.
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Position a container under the engine drain cock. Drain 2 liters of engine coolant.
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Close the cock. Install the lower splash guard. Lower the car.
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Disconnect the sensor cable connector.
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Remove the upper timing belt cover.
Removing the thermostat
Remove
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the upper timing belt cover
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the auxiliaries belt.
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the delivery pipe from the power steering pump.
NOTE: Put paper under the generator (GEN) to avoid oil spillage.
Remove:
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the servo pump
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the connector from the sensor
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the thermostat housing from the cylinder head.
Replacing the thermostat
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Remove the cover and the thermostat.
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Install a new thermostat with a new gasket.
NOTE: Ensure that the thermostat is positioned correctly in the thermostat housing.
Installing the thermostat
CAUTION: Tighten to the proper specifications.
Install:
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the thermostat housing. Use a new gasket
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the connector for the sensor
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the servo pump
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the delivery line for the power steering pump
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the upper timing belt cover.
