This procedure covers the replacement of the AC compressor clutch assembly on a 2012-2017 Toyota Camry with the 2.5L I4 engine, including refrigerant recovery, clutch removal, and system recharge.

Warnings

Tools required

Parts

• AC compressor clutch assembly × 1 — Use OEM specification
• AC line O-rings × 2 — Use OEM specification
• R-134a refrigerant × 1 — Check capacity label under hood
• PAG oil (ND-11 type) × 1 — Toyota ND-11 or equivalent
• Serpentine belt (if damaged) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Allow engine to cool completely if recently operated
3. Disconnect negative battery terminal and wait 10 minutes
4. Raise front of vehicle and secure on jack stands
5. Remove passenger side front wheel for better access
6. Remove plastic splash shield from passenger side wheel well using 10mm socket
7. Locate AC compressor on front lower right side of engine

Procedure

1. 1

   Recover AC refrigerant
   Connect AC recovery machine to service ports on high and low side lines. Follow machine instructions to completely recover all refrigerant from the system. Record the amount of oil recovered for later reference. Verify system is fully evacuated before proceeding.
2. 2

   Remove serpentine belt
   Using a 14mm wrench or serpentine belt tool, rotate the tensioner clockwise to release tension. Slide the belt off the AC compressor pulley first, then remove from other pulleys. Inspect belt for wear or damage and replace if necessary.
3. 3

   Disconnect AC line fittings
   Using a 14mm flare nut wrench, carefully disconnect the suction line and discharge line from the compressor. Cap all open fittings immediately to prevent contamination. Remove and discard the old O-rings from the fittings.
   ⚠Some residual refrigerant may escape. Wear protective equipment and ensure adequate ventilation.
4. 4

   Disconnect compressor electrical connector
   Press the locking tab and disconnect the electrical connector from the compressor clutch coil. Move the wiring harness aside to provide clearance for clutch removal.
5. 5

   Remove clutch plate snap ring
   Using snap ring pliers, carefully remove the large snap ring that retains the clutch plate to the compressor shaft. The snap ring is located in the groove on the compressor shaft behind the clutch plate. Keep the snap ring for reuse if in good condition.
6. 6

   Remove clutch plate assembly
   With the snap ring removed, the clutch plate assembly should slide off the compressor shaft. If stuck, use a puller specifically designed for AC clutch plates. Do not pry against the compressor housing. Remove the shim(s) behind the clutch plate and keep for measurement.
7. 7

   Remove pulley assembly snap ring
   Locate the snap ring that retains the pulley and bearing assembly to the compressor front head. Use snap ring pliers to remove this snap ring. The pulley assembly can now be pulled forward off the compressor nose.
8. 8

   Remove field coil
   The electromagnetic field coil is held in place by a snap ring or retaining clips within the pulley cavity. Remove the retaining hardware and carefully extract the field coil from the compressor front housing. Note the routing of the electrical wire.
9. 9

   Install new field coil
   Position the new field coil into the compressor front housing cavity, ensuring the electrical connector is properly oriented. Secure with the retaining snap ring or clips. Verify the coil is seated flush and does not move when tugged gently.
10. 10

    Install pulley and bearing assembly
    Slide the pulley and bearing assembly onto the compressor nose. Install the retaining snap ring, ensuring it fully seats in the groove. Verify the pulley spins freely without binding or excessive play.
11. 11

    Measure and set clutch air gap
    Place the clutch plate with original shim(s) on the compressor shaft. Using a feeler gauge, measure the gap between the clutch plate and pulley face at three points around the circumference. The air gap should be 0.35-0.50mm (0.014-0.020 inches). Add or remove shims as needed to achieve proper clearance. Shims are available in various thicknesses.
12. 12

    Install clutch plate assembly
    With the correct shim thickness established, install the shim(s) on the compressor shaft followed by the clutch plate assembly. Ensure the clutch plate is fully seated against the shim. Install the retaining snap ring securely in the shaft groove.
13. 13

    Reconnect electrical connector
    Plug the electrical connector back into the compressor clutch coil. Ensure the locking tab clicks into place. If available, use a multimeter to verify coil resistance is within specification (typically 3-4 ohms).
14. 14

    Install new O-rings and reconnect AC lines
    Lubricate new O-rings with fresh PAG oil (ND-11 type) and install them on both the suction and discharge line fittings. Thread the fittings onto the compressor ports by hand first to avoid cross-threading. Tighten to specification using a torque wrench.
    Torque spec

    AC Line Fittings20 Nm (15 lb-ft)
15. 15

    Reinstall serpentine belt
    Route the serpentine belt around all pulleys according to the belt routing diagram on the radiator support. Use the tensioner tool to rotate the tensioner and slip the belt onto the final pulley. Release tensioner and verify belt is properly seated on all pulleys.
16. 16

    Add PAG oil to system
    Calculate the amount of PAG oil needed based on what was recovered plus any additional oil specified for the new clutch assembly (typically 20-30ml for clutch only). Add the oil through the suction port before final connection or through the compressor if accessible.
17. 17

    Vacuum and recharge AC system
    Connect AC manifold gauges and vacuum pump to service ports. Pull vacuum on the system for at least 30 minutes to remove all air and moisture. Monitor for vacuum decay to verify system integrity. If vacuum holds, recharge system with the correct amount of R-134a refrigerant according to the underhood capacity label (typically 17-19 oz).

Reassembly

1. Reinstall passenger side splash shield and secure all clips
2. Reinstall passenger side front wheel and torque lug nuts to specification
3. Lower vehicle to ground
4. Reconnect negative battery terminal

Verification

• Start engine and turn AC to maximum cold setting with blower on high
• Verify compressor clutch engages when AC is turned on (audible click and clutch plate should spin with pulley)
• Check AC manifold gauges for proper high and low side pressures (low side 25-35 PSI, high side 200-250 PSI at idle, ambient 75-85°F)
• Verify cold air is produced from vents (vent temperature should be 40-50°F below ambient)
• Inspect all AC line fittings for signs of refrigerant leaks using leak detector or soap solution
• Verify serpentine belt is running smoothly without noise or slippage
• Test clutch cycling at various temperature settings to confirm proper operation
• Allow system to run for 10 minutes and recheck pressures and vent temperatures

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