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Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System - Service Information (2 Of 3) >> COMPRESSOR (for 2WD) >> Installation [04/2013 - 08/2015] >> Procedure

Installation [04/2013 - 08/2015]: Procedure

  1. ADJUST COMPRESSOR OIL 
    1. When replacing the compressor with a new one:
      1. Remove the drain bolt (washer).
        GTY462563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Drain Bolt (Washer)
      2. Gradually discharge the inert gas from the service valve. Then drain the following amount of oil from the new compressor before installation so that the amount of oil contained in it is the same as that in the compressor to be replaced.
        GTY452636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Removed Compressor
        *b Amount of oil to be drained from removed compressor
        *c Amount of oil remaining in the reserve chamber (60 cc (2.03 fl.oz))

        HINT: 

        New compressors are filled with sufficient oil for the whole air conditioning system. Therefore, it is necessary to drain oil from the new compressor to compensate for oil remaining in the condenser and cooling unit.

        Standard

        (The amount of compressor oil inside a new compressor and magnetic clutch: 100 (+15) cc (3.38 (+0.51) fl.oz)) - (The amount of compressor oil remaining in the removed compressor and magnetic clutch) = The amount of compressor oil to be removed when replacing the compressor and magnetic clutch

        NOTE:
        • When A + 60 cc (2.03 fl.oz) exceeds the standard oil fill volume specified for the compressor by part number, install the compressor without adjusting the oil volume.

          Example:

          If A = 45 cc (1.52 fl.oz), A + 60 cc (2.03 fl.oz) = 105 cc (3.55 fl.oz). If the standard volume is 100 cc (3.38 fl.oz), install the compressor as is.

        • If the amount of oil remaining in the removed compressor is too low, check for oil leaks.
        • Use ND-OIL 8 or equivalent for compressor oil.
      3. Install the drain bolt (washer).

        Torque: 30 N*m (306 kgf*cm, 22 ft.*lbf) 

    2. If draining the oil is difficult, drain the oil using the following procedure:
      1. Remove the suction seal cap.
      2. Lightly shake the compressor with the suction port facing down, and drain the oil (*1).
        GTY461655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:

        Do not allow the pulley to come into contact with the compressor oil.

    3. With the pulley facing down, rotate the hub as shown in the illustration 10 times at a rate of approximately once every 2 seconds (*2).
      GTY461653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WARNING:

      If the pulley is rotated, refrigerant or oil may spray out. Thus, keep your face away from the compressor port.

    4. Rotate the hub once as shown in the illustration while quickly turning the compressor with the pulley facing up (*3).
      GTY469724Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Perform step (*1) and drain the oil (*4).
    6. Drain the oil by repeating steps (*2) to (*4) approximately 5 times.
  2. INSTALL COMPRESSOR AND MAGNETIC CLUTCH 
    1. Using an E8 "TORX" socket wrench, temporarily install the compressor and magnetic clutch with the stud bolt.
      Fig 1: Compressor And Magnetic Clutch Tightening Sequence [04/2013 - 08/2015]
      GTY461037Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Tighten the stud bolt.

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

    3. Install the compressor and magnetic clutch with the 3 bolts and nut.

      Bolt 

      Torque: 24.5 N*m (250 kgf*cm, 18 ft.*lbf) 

      Nut 

      Torque: 24.5 N*m (250 kgf*cm, 18 ft.*lbf) 

      HINT: 

      Tighten the bolts and nut in the order shown in the illustration.

    4. Engage the clamp.
    5. Connect the 2 connectors.
  3. CONNECT SUCTION HOSE 
    1. Remove the vinyl tape from the suction hose and compressor and magnetic clutch.
    2. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the compressor and magnetic clutch.

      Compressor Oil

      ND-OIL 8 or equivalent

    3. Install the O-ring to the suction hose.
    4. Connect the suction hose to the compressor and magnetic clutch with the bolt.

      Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) 

  4. CONNECT NO. 1 COOLER REFRIGERANT DISCHARGE HOSE 
    1. Remove the vinyl tape from the No. 1 cooler refrigerant discharge hose and compressor and magnetic clutch.
    2. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the compressor and magnetic clutch.

      Compressor Oil

      ND-OIL 8 or equivalent

    3. Install the O-ring to the No. 1 cooler refrigerant discharge hose.
    4. Connect the No. 1 cooler refrigerant discharge hose to the compressor and magnetic clutch with the bolt.

      Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) 

  5. INSTALL FAN AND GENERATOR V BELT 

    for 2GR-FSE: Refer to INSTALLATION [04/2013 - 10/2017]

    for 4GR-FSE: Refer to INSTALLATION [04/2013 - 08/2015]

  6. INSTALL REAR ENGINE UNDER COVER LH 

    Refer to PROCEDURE - Step 102

  7. INSTALL ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 104

  8. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT 

    Refer to PROCEDURE - Step 2

  9. WARM UP ENGINE 

    Refer to PROCEDURE - Step 3

  10. INSPECT FOR REFRIGERANT LEAK 

    Refer to PROCEDURE - Step 4

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