Heating, Ventilation, and Air Conditioning

Refrigerant Line Repair Procedures

12steps
~72min
3/5difficulty
0102030405013.710N·mlb·ft
Tightening torque found on this page
Done 0 of 12

Replacement

  1. If the compressor is locked up, run the engine at idle and let the air conditioner operate for a few minutes, then stop the engine.
  2. Disconnect the negative (-) battery terminal.
  3. Recover the refrigerant using a recovery/recharging station.
  4. Remove the engine cover (A).
  5. Remove the bolts and the expansion valve (A) from the evaporator core.

    Tightening torque: 8.8 ~ 13.7 N·m

  6. Remove the 2 nuts, then disconnect the discharge line (A) and liquid line (B) from the condenser.

    Tightening torque: 8.8 ~ 13.7 N·m

  7. Disconnect the air conditioner pressure sensor connector (A).
  8. Remove the engine room cover. (Refer to Engine Mechanical System - "Engine Room Cover")
  9. Remove the bolts, then disconnect the suction line (A) and discharge line (B) from the compressor.

    Tightening torque: 21.6 ~ 32 N·m

    • Plug or cover the lines immediately after disconnecting them to prevent moisture and dust from entering.
  10. Loosen the mounting bolt of the bracket (B) on the suction and liquid line assembly (A).

    Tightening torque: 7.8 ~ 11.8 N·m

  11. Remove the refrigerant line assembly (A) toward the upper part of the engine room.
  12. To install, reverse the removal procedure.
    • Plug or cover the lines immediately after disconnecting them to prevent moisture and dust from entering.
    • Tighten the bolt or nut to the specified torque.
    • Check for refrigerant leaks using a gas leak detector.
    • Evacuate the air conditioning system and charge it with refrigerant.

      Capacity of the compressor: 500 ± 25 g (17.6 ± 0.88 oz)

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.