Coolant Temperature Sensor/Switch (For Computer): Service and Repair

18.30.10 Sensor - Engine Coolant Temperature (ECT)

Before disconnecting the battery, ensure all text and cautions in the battery disconnection section are observed.

Remove
1. Disconnect battery earth lead.





2. Disconnect multiplug from ECT sensor.
3. Position container beneath ECT sensor to collect coolant.





4. Using a deep socket, carefully remove ECT sensor and discard seal.

Refit
1. Ensure mating faces of ECT sensor and coolant pump are clean.
2. Fit new seal and tighten ECT sensor to 15 Nm (11 lbf.ft).
3. Connect multiplug to ECT sensor.
4. Remove container.
5. Dispose of coolant and clean container.
6. Connect battery earth lead.
7. Check and top up cooling system.
8. If a replacement sensor has been fitted re-set adaptions using TestBook/T4.