>>A<< Engine Coolant Temperature Sensor Installation

WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

Apply sealant to the engine coolant temperature sensor thread.
Specified sealant: Three bond 1324N or equivalent

NOTE: Install the engine coolant temperature sensor immediately after applying sealant.

Fig 1: Identifying Sealant Applying Area On Engine Coolant Temperature Sensor Thread
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CAUTION: After the installation, until a sufficient period of time (one hour or more) elapses, do not apply the oil or water to the sealant application area or start the engine.
Use special tool MB992042 to tighten the engine coolant temperature sensor to the specified torque.
Tightening torque: 30 ± 9 N.m (22 ± 7 ft-lb)

Fig 2: Identifying Special Tool MB992042
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.