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Home >> Kia >> 2020 >> Optima EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Control System - 2.0L) >> Engine Coolant Temperature Sensor (ECTS) >> Repair Procedures >> Removal
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Repair Procedures: Removal

WARNING: This page is about a different car, the 2020 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Disconnect the engine coolant temperature sensor connector (A).
    G12606892Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the sensor (B).
    G12606893Courtesy of HYUNDAI MOTOR AMERICA
    CAUTION:
    • Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor.
  4. Supplement the engine coolant.

    (Refer to Engine Mechanical System - "COOLANT ")