C70 Coupe L5-2.3L Turbo VIN 53 B5234T3 (2001)
Engine temperature sensor, 5-cylinder
Install in reverse order.
Follow-on work, 5-cylinder
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Fill up coolant.
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Warm the engine until the thermostat opens.
Switch engine off and check the level. Re-fill if necessary.
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Check for leaks.
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Check in VIDA vehicle communication (read-out of parameter values), for current engine system, that the engine temperature shown appears
correct.
Replacing the Thermostat and/or Engine Coolant Temperature Sensor
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
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the thermostat housing cover
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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
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the new thermostat
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Install the thermostat housing cover. Use a new gasket . Tighten to 17 Nm .
Installing the engine coolant temperature (ECT) sensor
Install
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the new sensor. Use a new gasket . Tighten to 20 Nm
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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.