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Repair Procedures: Replacement

WARNING: This page is about a different car, the 2024 Genesis G80. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative (-) battery terminal.
  2. Remove the heater unit.

    (Refer to Heater - "HEATER UNIT ")

  3. Loosen the mounting screws and remove the driver's temperature control actuator (A).
    G15555104Courtesy of HYUNDAI MOTOR AMERICA
  4. Press the lock pin and disconnect the connector (A).
    G15555105Courtesy of HYUNDAI MOTOR AMERICA
  5. Loosen the mounting screws and remove the heater tube cover (A).
    G15555106Courtesy of HYUNDAI MOTOR AMERICA
  6. Detach the heater core (A) from the heater unit.
    G15555107Courtesy of HYUNDAI MOTOR AMERICA
    G15555108Courtesy of HYUNDAI MOTOR AMERICA
  7. Install in the reverse order of removal.

    Information 

    • If you're installing a new heater core, add refrigerant oil.
    • Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately.
    • Charge the system and test its performance.
    • Do not interchange the inlet and outlet heater hoses and tighten the hose clamps firmly.
    • Make sure that there is no air leakage.
    • Air drain operation is carried out to prevent air from the system.
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