Removing the engine coolant temperature (ECT) sensor

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Removing Engine Coolant Temperature (ECT) Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Preparations

Remove the expansion tank cover.
Open the valve on the right underside of the radiator. Use a hose to collect the coolant (cars with air conditioning (A/C): partially remove the splash guard under engine).
Drain two liters of coolant.
Close the valve.

Removing the thermostat housing cover

Remove the cover over the fuel rail.
Remove the upper camshaft cover, see Removing the cover on top of the engine .
Remove the thermostat housing cover (two screws). Move the cover to one side.

Removing the engine coolant temperature (ECT) sensor

Remove the connector from the bracket.
Disconnect the connector.
Remove the engine coolant temperature (ECT) sensor. Remove the sealing ring.