Make sure the refrigerant oil is at the correct level during A/C refrigerant servicing to help avoid damage to the A/C compressor. In case you have to replace numerous parts where oil is needed, check the Refrigerant Oil Capacities chart for the proper amount. During a rear A/C
Evaporator replacement, pour 60 milliliters (2 fluid ounces) of the right refrigerant oil as directed. Always put on new refrigerant line O-ring seals after a refrigerant expansion valve is replaced to prevent leaks. To begin, remove the tape or plug from the receiver/drier and condenser ports and add clean refrigerant oil to a fresh O-ring seal; then set the seal onto the condenser outlet fitting using the appropriate part for R-134a systems. Tie the A/C receiver/drier (4) to the back end of the condenser (2) and slide on the retaining bolt (1) for a temporary fit. Place the A/C receiver/drier at the back of the condenser unit (5) and screw it in using two firm fasteners (3). Secure the rear condenser outlet line to the rear A/C receiver/drier with a tightening force of 6 Nm (53 in. lbs.). Set the rear A/C condenser onto the support brackets on the vehicle's roof, place the fan mounting tabs in their openings and bolt the condenser into the brackets so they are secured tightly. Take the tape or plugs out of the refrigerant fittings, rub clean oil onto the O-rings and put them on the ends of the lines. Attach the rear A/C line (11) to the rear A/C receiver/drier (9) and put the retaining bolt (10) in tight at 6 Nm (53 in. lbs.). Link the wire harness and connector (12) to the rear A/C pressure transducer and make certain each rear condenser air seal is in place for the best results. When installing a new rear A/C condenser, apply new seals around the edge near the rear condenser fan unit. Attach the two brackets (8) to hold the condenser fan on each side. Then, fasten the rear condenser fan unit (3) onto the mounts using six washers and nuts (4). Bring the rear A/C discharge line (2) over to the rear A/C condenser and secure with a retaining bolt (1), tightening it to 6 Nm (53 in. lbs.). Join the two wire harness connectors on the left side rear condenser mounting bracket. Mount the rear condenser cover bracket 2 onto the rear condenser bracket 5 with the help of four retaining bolts 3 and then fit the rear A/C suction line 1 onto the bracket with help of a nut and bolt 4. Cover the rear condenser on top of the vehicle and tighten the plastic retaining screws to 2 Nm (17 in. lbs.). Connect the negative
Battery Cable back, release the gas from the rear refrigerant system and if a new rear A/C evaporator is put in, add 60 ml of refrigerant oil using the chart for multiple replacements. Then, charge up the rear refrigerant system.