Engine Coolant Temperature Sensor (ECTS) [Water Temperature Control Assembly]

Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "AIR CLEANER ")
Remove the purge control solenoid valve.
(Refer to Engine Control/Fuel System - "PURGE CONTROL SOLENOID VALVE (PCSV) ")
Disconnect the Engine Coolant Temperature Sensor Connector (A).
Remove the Spring Clip (B), and then pull the sensor from the water temperature control assembly.

Fig 1: Disconnecting Engine Coolant Temperature Sensor Connector And Spring Clip
Courtesy of KIA MOTORS AMERICA, INC.

NOTE: Note that engine coolant may flow out from the water temperature control assembly when removing the sensor.