Engine - Coolant Temperature Sensor/Switch: Service and Repair

Engine Coolant Temperature (ECT) Sensor (G62)

Removing

• Engine cold.

- Remove the bolts - arrows - and air guide.






- Remove both the lower air guide and the air guide hose.

- Remove the air guide hose - 2 and 3 -.






• Ignore items - 1, 2 and arrows -.

- Disconnect electrical connector - 1 - on throttle valve control module (J338).






- Remove bolts - arrows - and remove throttle valve control module.

- Remove the intake manifold support; to do this, remove the nut - 2 - and bolt - 1 -.






- Disconnect the connector - 1 - from the ECT sensor.






• Use a cloth to catch any leaking coolant.

- Remove the clamp, to do this, press the latches - arrow -.

- Remove the ECT sensor - 2 -.

Installing

Installation is carried out in the reverse order while noting the following:

• Replace the O-ring.

• To prevent coolant loss, immediately insert new ECT sensor in connecting pieces.

- Install the intake manifold support.

- Install throttle valve control module.

- Check the coolant level. Refer to => [ Filling: ] Service and Repair.