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A/C Compressor Replacement

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Do not install the A/C compressor into a system unless you are completely sure that the system is free of contamination. Installing the 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. Recover the refrigerant with a recovery/recycling/charging station (see REFRIGERANT RECOVERY  ).
  3. Remove the drive belt (see DRIVE BELT REPLACEMENT ).
  4. Remove the front splash shield (see SPLASH SHIELD REPLACEMENT ).
  5. Remove the front undercover (see FRONT UNDERCOVER REPLACEMENT ).
  6. Support the front subframe with the engine support. Remove the bolts and the front subframe stiffener (A).
    NOTE: Install the new front subframe mounting bolt (B).
    Fig 1: Locating Bolts, Front Subframe Stiffener And Front Subframe Mounting Bolt
    G08057995Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Disconnect the A/C compressor clutch connector (A). Remove the bolts and the nut, then disconnect the suction hose (B) and discharge hose (C) from the A/C compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    Fig 2: Locating A/C Compressor Clutch Connector, Bolts, Nut, Suction Hose And Discharge Hose
    G08057996Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Remove the mounting bolts and the A/C compressor (A). Be careful not to damage the radiator fins when removing the A/C compressor.
    Fig 3: Locating Mounting Bolts And A/C Compressor
    G08057997Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Install the A/C compressor in the reverse order of removal, and note these items:
    • Before installing a new A/C compressor, adjust the A/C compressor oil level (see A/C REFRIGERANT OIL REPLACEMENT  ).
    • Inspect the A/C lines for any signs of contamination.
    • 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  ).
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