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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Air Conditioning System) >> Refrigerant Line >> Repair Procedures >> Replacement

Repair Procedures: Replacement

WARNING: This page is about a different car, the 2022 Genesis G90. However, it is still accessible from the selected car via links, so may be relevant.
  1. If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off.
  2. Disconnect the negative (-) battery terminal.
  3. Recover the refrigerant with a recovery/charging station.
  4. Remove the cowl top cover.

    (Refer to Body (Interior and Exterior) - "COWL TOP COVER ")

  5. Remove the engine cover and engine room cover.

    (Refer to Engine Mechanical System - "ENGINE COVER ")

  6. Remove the air cleaner assembly.

    (Refer to Engine Mechanical System - "AIR CLEANER ")

  7. Disconnect the TCM connector (A) and ECM connector (B).
  8. Remove the ground (C) and wiring after loosening the mounting bolts.
    G14233809Courtesy of HYUNDAI MOTOR AMERICA
  9. Remove the strut bar [LH](A) after loosening the mounting bolts.
    G14233810Courtesy of HYUNDAI MOTOR AMERICA
  10. Remove the bolts and the expansion valve (A) from the evaporator core.

    Tightening torque: 

    7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

    G14233811Courtesy of HYUNDAI MOTOR AMERICA
  11. Remove the 2 nuts, and then disconnect the discharge line (B) and liquid line (A) from the condenser.

    Tightening torque: 

    3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 lb-ft)

    G14233812Courtesy of HYUNDAI MOTOR AMERICA
  12. Disconnect the A/C pressure transducer connector (A).
    G14233813Courtesy of HYUNDAI MOTOR AMERICA
  13. Remove the engine room partition wall.

    (Refer to Engine Mechanical System - "ENGINE COVER ")

  14. Remove the bolts, then disconnect the suction line (A) and discharge line (B) from the compressor.

    Tightening torque: 

    3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 lb-ft)

    Information 

    • Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    G14233814Courtesy of HYUNDAI MOTOR AMERICA
  15. Remove the suction & liquid tube assembly (A) to the upper of engine room.
    G14233815Courtesy of HYUNDAI MOTOR AMERICA
  16. To install, reverse the removal procedure.
CAUTION:
  • Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
  • Tighten the bolt or nut joint to the specified torque.
  • Using a gas leak detector, check for refrigerant leakage.
  • Evacuate air in the refrigeration system and charge system with refrigerant.

Capacity 
: R-1234yf: 630 ± 25 g (22.2 ± 0.88 oz.)
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