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Home >> Acura >> 2012 >> TL Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control >> System Charging
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System Charging

CAUTION:
  • Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat.
  • Be careful when connecting service equipment.
  • Do not breathe refrigerant or vapor.
NOTE:
  • If accidental system discharge occurs, ventilate the work area before resuming service.
  • Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.
  1. Connect an R-134a refrigerant recovery/recycling/charging station (A) to the high-pressure service port (B) and the low-pressure service port (C), as shown, following the equipment manufacturer's instructions.
    Fig 1: Identifying R-134A Refrigerant Recovery/Recycling/Charging Station, High-Pressure Service Port And Low-Pressure Service Port
    G08071157Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Recover the refrigerant in the A/C system (see REFRIGERANT RECOVERY  ).
  3. Evacuate the system (see SYSTEM EVACUATION  ). If the system cannot reach a vacuum of -93.3 kPa (-700 mmHg, -27.6 inHg) in 15 minutes, or cannot hold a vacuum for at least 15 minutes, there is probably a large leak. Do the refrigerant leak check (see REFRIGERANT LEAK CHECK  ), and repair any leaks before charging the system.
  4. Add the same amount of new refrigerant oil to the system that was removed during recovery. Use only DENSO ND-OIL 8 refrigerant oil.
  5. Charge the system with the specified amount of R-134a refrigerant. Do not overcharge the system; the A/C compressor will be damaged.

    Select the appropriate units of measure for your refrigerant charging station.

    Refrigerant Capacity: 

    505 to 555 g 

    17.8 to 19.6 oz 

    0.505 to 0.555 kg 

    1.11 to 1.22 lbs 

  6. Check for refrigerant leaks (see REFRIGERANT LEAK CHECK  ).
  7. Check the system performance (see PERFORMANCE TEST  ).

    SUPPLEMENTAL RESTRAINT SYSTEM (SRS) (If body electrical maintenance is required) 

    The Acura TL SRS includes a driver's airbag in the steering wheel hub, a front passenger's airbag in the dashboard above the glove box, front seat belt tensioners in the front seat belt retractors, side curtain airbags in the sides of the roof, and side airbags in the front seat-backs. Information necessary to safely service the SRS is included in this Service Information. Servicing, disassembling, or replacing SRS items requires special precautions and tools, and should be done by an authorized Acura dealer.

    • To avoid rendering the SRS inoperative, which could lead to personal injury or death in the event of a severe frontal or side collision, all SRS service work should be done by an authorized Acura dealer.
    • Improper service procedures, including incorrect removal and installation of the SRS, could lead to personal injury caused by unintentional deployment of the front airbags, side airbags, side curtain airbags, and/or front seat belt tensioners.
    • Do not bump or impact the SRS unit, front impact sensors, side impact sensors, or rear safing sensor, especially when the ignition switch is in ON (II), or the engine start/stop button is in the ON mode, for at least 3 minutes after the ignition switch is turned to LOCK (0), or after the engine start/stop button is pressed to select the OFF mode; otherwise, the system may fail in a collision, or the airbags or the tensioners may deploy.
    • SRS electrical connectors are identified by yellow color coding. Related components are located in the steering column, center console, dashboard, dashboard undercover, in the dashboard above the glove box, in the front seats, in the roof side, and around the floor. Do not use electrical test equipment on these circuits.
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