Begin compressor and magnetic clutch repair services after running the engine idle with A/C activated for ten minutes followed by engine stoppage to disconnect the negative (-) terminal cable from the battery. Discharge the system refrigerant before removing engine under cover and unfastening the suction and discharge hoses through 2 bolt removal steps alongside fitment of caps to stop system entry of moisture or dirt. Begin by first removing the compressor through fan shroud detachment followed by drive belt loosening and removing compressor mounting bolts. To remove the compressor bracket use four bolts for the 2RZ-FE and 3RZ-FE engine models but five bolts are required for the installation of the 5VZ-FE engine model. The installation process requires placement of compressor bracket bolts according to specified number before torque application reaches 47 N.m (475 kgf.cm, 34 ft.lbf). The compressor requires four bolts for installation which should be torqued to 25 N.m (250 kgf.cm, 18 ft.lbf) before connector attachment. Reinstall the discharge and suction hoses while torquing 2 bolts to 10 N.m (100 kgf.cm, 7 ft.lbf) after applying compressor oil on fresh O-ring pair for hose sealing. Reinstall the engine under cover after drive belt installation and check. The 5VZ-FE engine PS pump set bolt requires torquing to 43 N.m (440 kgf.cm, 32 ft.lbf) using the other parts. Reconnect the battery negative terminal while evacuating the refrigeration system and fill it with 600 plus or minus 50 g of refrigerant (21.16 plus or minus 1.76 oz). During the last step of the procedure you need to use a gas leak detector to check refrigerant leakage while also verifying joint torque setting before testing A/C functionality.