BMW 12621710511 Remote Thermometre Sending Unit

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When removing and installing the sensor, caution should be taken to avoid spraying hot engine coolant. The sensor should be tightened to the specified torque, and the cooling system should be topped off and bled.

To remove and install the ECT sensor, follow the specific instructions for your engine model. It is important to allow the engine to cool before removing the sensor to avoid burns. Unplug the electrical connector, use a 12 point 22mm thin wall deep well socket to remove the sensor by turning it counterclockwise. Remove the sensor along with its sealing washer. When installing the sensor, use a new sealing washer and tighten it to 10 ft. lbs. (14 Nm).