LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2005 >> RL >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Automatic HVAC System) >> A/C Compressor Replacement
April 5, 2026: LEMON Manuals is launched! Read the announcement.

A/C Compressor Replacement

WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Do not install an A/C compressor into a system unless you are completely sure that the system is free of contamination. Installing an A/C compressor into a contaminated system can result in premature A/C compressor failure.
  1. If the A/C 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. Make sure you have the anti-theft codes for the audio system and the navigation system (if equipped).
  3. Make sure the ignition is in LOCK (0), then disconnect the negative cable from the battery.
  4. Recover the refrigerant with a recovery/recycling/charging station (see REFRIGERANT RECOVERY  ).
  5. Remove the engine cover (see step 2 on IGNITION COIL REMOVAL/INSTALLATION ), and the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).
  6. Remove the A/C compressor clutch connector (A) from the A/C condenser fan shroud (B). Disconnect the A/C condenser fan connector (C), then remove the wire harness clip (D) from the A/C condenser fan shroud. Remove the hose (E) from the radiator (F). Loosen the lower mounting bolt, then remove the upper mounting bolts and the radiator fan shroud. Be careful not to damage the radiator fins when removing the A/C condenser fan shroud.
    Fig 1: A/C Compressor Clutch Connector, A/C Condenser Fan Shroud And A/C Condenser Fan Connector With Torque Specifications
    G05462519Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Disconnect the A/C compressor clutch connector (A). Remove the bolt and the nuts, then disconnect the suction line (B) and discharge line (C) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    Fig 2: A/C Compressor Clutch Connector, Suction Line And Discharge Line With Torque Specifications
    G05462520Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Remove the mounting bolts and the A/C compressor. Be careful not to damage the radiator fins when removing the A/C compressor.
    Fig 3: A/C Compressor Mounting Bolts With Torque Specifications
    G05462521Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Install the A/C compressor in the reverse order of removal, and note these items:
    • Inspect the A/C lines for any signs of contamination. Purge the system if necessary before installing the A/C compressor.
    • If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be removed from it (see A/C REFRIGERANT OIL REPLACEMENT  ). A new A/C compressor comes with a full charge of oil.
    • Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
    • Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor only.
    • To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
    • Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    • 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.
    • Be careful not to damage the radiator fins when installing the A/C compressor and the A/C condenser fan shroud.
    • Charge the system (see SYSTEM CHARGING  ).
    • Enter the anti-theft codes for the audio system and the navigation system (if equipped).
    • Set the clock (on vehicles without navigation).
scientia non olet · About LEMON Manuals