Engine - Coolant Temperature Sensor/Switch: Service and Repair

Engine Coolant Temperature Sensor

Removing

• Engine cold

- Remove cover above coolant reservoir - arrows -.





- Briefly open the coolant expansion tank cap to reduce residual pressure in the cooling system.

- Remove rear engine cover - 2 - - arrows -.





- Remove the left air duct hose - arrows -.





- Disconnect vacuum hose - 2 - from air guide hose.

- Loosen hose clamps - arrows - and lay aside air guide hose.

CAUTION!
Hose connectors - 1 - must not be opened.

- Remove vacuum hose - 1 - from intake manifold.





- Remove bolts - arrows - and remove air duct.

- Remove electrical connectors - 2 - from bracket.





- Disconnect electrical connector - 1 - on engine coolant temperature sensor (G62).

• Place a cloth under separation point to catch escaping coolant.

- Remove retaining clip - 3 - and remove engine coolant temperature sensor.

Installing

Installation is in reverse order of removal, note the following:

• To avoid coolant loss, insert new engine coolant temperature sensor immediately and secure it with retaining clip.

• Replace O-ring.

• Secure all hose connections with hose clamps appropriate for the model.

- Fill with coolant => [ Filling ] Procedures.

Tightening Specifications