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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Cooling System - 1.6L (Except HEV)) >> Coolant >> Repair Procedures >> Removal And Installation

Removal And Installation

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator.
NOTE:
  • When pouring engine coolant, be sure to shut the relay box lid and not to let coolant spill on the electrical parts or the paint. If any coolant spills, rinse it off immediately.
  • When changing the coolant and draining air, be sure to follow the filling instructions of the Integrated Thermal Management Module (ITM).

If GDS is available, change the coolant and drain air according to the descriptions below. 

  1. Make sure the engine and radiator are cool to the touch.
  2. Remove the reservoir tank cap (A).
    G14524437Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the engine room under cover.

    (Refer to Engine and Transaxle Assembly - "ENGINE ROOM UNDER COVER ")

  4. Loosen the drain plug (A), and drain the coolant.
    G14524438Courtesy of HYUNDAI MOTOR AMERICA
  5. Tighten the radiator drain plug securely after draining the coolant.
  6. Clean the reservoir tank after drain the coolant.
  7. Fill with fluid mixture of coolant and water (45 - 60%) slowly through the radiator cap.
    NOTE:
    • Make sure to insert the maximum amount of coolant after turning off the engine and cutting the power of the components.

    Coolant capacity 

    AT: Approx. 7.6 L (2.01 US.gal., 8.03 US.qt., 6.68 Imp.qt.)

    NOTE:
    • Press the upper/lower hoses on the radiator so that the air can get out easily.
    • Use only genuine antifreeze/coolant.
    • For best corrosion protection, the coolant concentration must be maintained year-round at 45 - 60% minimum.

      Coolant concentrations less than 45 - 60% may not provide sufficient protection against corrosion or freezing.

    • Coolant concentrations greater than 60% will impair cooling efficiency and are not recommended.
    • Do not mix different brands of antifreeze/coolants.
    • Do not use additional rust inhibitors or antirust products; they may not be compatible with the coolant.
  8. Start the engine.
    NOTE:
    • Keep the engine idle.
  9. Connect the diagnostic tool.
  10. Use the diagnostic tool to activate the "integrated thermal management module (ITM) coolant refill mode".
    G14524439Courtesy of HYUNDAI MOTOR AMERICA
    G14524440Courtesy of HYUNDAI MOTOR AMERICA
    G14524441Courtesy of HYUNDAI MOTOR AMERICA
    G14524442Courtesy of HYUNDAI MOTOR AMERICA
    G14524443Courtesy of HYUNDAI MOTOR AMERICA
    G14524444Courtesy of HYUNDAI MOTOR AMERICA
  11. After the cooling fan operates once, warm up the engine for 20 minutes.
  12. Disconnect the diagnostic tool, and then restart the engine after turning the engine OFF.
  13. Install the reservoir tank cap (A).
    G14524445Courtesy of HYUNDAI MOTOR AMERICA
  14. Check the coolant quantity after driving the vehicle.
  15. If the coolant is insufficient, replenish it.
  16. Install the engine room under cover.

    (Refer to Engine and Transaxle Assembly - "ENGINE ROOM UNDER COVER ")

If diagnostic tool is not available, replace the coolant and drain air according to the descriptions below. 

  1. Make sure the engine and radiator are cool to the touch.
  2. Remove the reservoir tank cap (A).
    G14524446Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the engine room under cover.

    (Refer to Engine and Transaxle Assembly - "ENGINE ROOM UNDER COVER ")

  4. Loosen the drain plug (A), and drain the coolant.
    G14524447Courtesy of HYUNDAI MOTOR AMERICA
  5. Tighten the radiator drain plug securely after draining the coolant.
  6. Clean the reservoir tank after drain the coolant.
  7. Fill with fluid mixture of coolant and water (45 - 60%) slowly through the radiator cap.
    NOTE:
    • Make sure to insert the maximum amount of coolant after turning off the engine and cutting the power of the components.

    Coolant capacity 

    AT: Approx. 7.6 L (2.01 US.gal., 8.03 US.qt., 6.68 Imp.qt.)

    NOTE:
    • Press the upper/lower hoses on the radiator so that the air can get out easily.
    • Use only genuine antifreeze/coolant.
    • For best corrosion protection, the coolant concentration must be maintained year-round at 45 - 60% minimum.

      Coolant concentrations less than 45 - 60% may not provide sufficient protection against corrosion or freezing.

    • Coolant concentrations greater than 60% will impair cooling efficiency and are not recommended.
    • Do not mix different brands of antifreeze/coolants.
    • Do not use additional rust inhibitors or antirust products; they may not be compatible with the coolant.
  8. Disconnect the integrated thermal management module (ITM) connector (A).
    G14524448Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • When disconnecting the integrated thermal management module (ITM) connector, make sure that there is no power to the engine and other components.
    • Be careful that static electricity and other voltages are not applied to the integrated thermal management module (ITM).
    • Do not bring anything with magnetism, such as a magnet, close to the integrated thermal management module (ITM).
  9. Start the engine.
    NOTE:
    • Keep the engine idle.
  10. After the cooling fan operates once, warm up the engine for 20 minutes.
  11. After shut engine off and connect the integrated thermal management module (ITM) connector (A).
    G14524449Courtesy of HYUNDAI MOTOR AMERICA
    NOTE:
    • When connecting the integrated thermal management module (ITM) connector, water or oil must be completely removed from the connector and no foreign matters should be entered.
    • When replacing the integrated thermal management module (ITM) connector, be sure to use the specified connector.
  12. Start the engine.
  13. Check whether the integrated thermal management module (ITM) is working by listening to the operating sound.
    NOTE:
    • The operation sound of the integrated thermal management module (ITM) may occur before or after the engine start.
  14. Check the coolant quantity after driving the vehicle.
  15. If the coolant is insufficient, replenish it.
  16. Install the engine room under cover.

    (Refer to Engine and Transaxle Assembly - "ENGINE ROOM UNDER COVER ")

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