Toyota 88515-08080
Expansion Valve

When servicing or repairing the rear A/C expansion valve it requires a process of discharging refrigerant from the refrigeration system followed by evacuating all air then charging the system with 1050 plus or minus 50 g (37.03 plus or minus 1.76 oz.) of refrigerant while leak inspections are performed. Engine coolant drain from the radiator marks a necessary step but complete removal of coolant is not required. Service and repair of the rear A/C expansion valve requires removal of the rear seat outer belt floor anchors in addition to the backdoor scuff plate and rear door scuff plate RH. Also remove upper back door garnish, rear window side garnish RH, rear quarter trim panel RH and quarter pillar garnish RH. The system maintenance process involves discarding the liquid and suction tubes by unfastening the 2 bolts followed by securing the open connections using caps as protection against moisture or dust intrusion. The procedure requires lubricating two new O-rings with compressor oil before their installation. Remove the rear A/C unit through the process of detaching the 3 clips and cover and removing the 2 air ducts and disconnecting both connectors and wire harness clamps. The process for expansion valve repair requires the removal of 4 screws and 2 brackets while prying out packings before using a 5.0 mm hexagon wrench to take out the 2 bolts (torque: 5.4 N.m). Then proceed by removing 3 additional bolts. First lift the A/C unit to detach the tube with accessory and then remove the holder along with disconnection of the heat sensing tube. The technician should first lubricate two new O-rings with compressor oil before installing them. Afterward the technician can remove the expansion valve by loosing the 2 nuts (Nut A torque: 13 N.m; Nut B torque: 22 N.m). Construct the parts back in the reverse manner of disassembly.

Remove the 4 screws and 2 brackets, pry out the packings without refusing them, and use a 5.0 mm hexagon wrench to remove the 2 bolts with a torque of 5.4 N.m (55 kgf.cm, 48 in.lbf), followed by removing the 3 bolts.

Remove the rear seat outer belt floor anchors, backdoor scuff plate, rear door scuff plate RH, upper back door garnish, rear window side garnish RH, rear quarter trim panel RH, and quarter pillar garnish RH.