Subaru (Legacy)

If possible, before checking and adjusting oil level, operate A/C system. If A/C system cannot be operated, go to step 3) . Install manifold gauge set. Start engine and operate at 1500 RPM. Turn A/C on. Set air source to recirculate and blower motor speed to maximum.
Ensure evaporator intake air temperature is greater than 80°F (27°C). Ensure refrigerant discharge pressure is greater than 85 psi (6.0 kg/cm² ). After operating system for 10 minutes, stop engine and go to next step.
Discharge A/C system, using approved refrigerant recovery/recycling equipment. Close low-side valve until high-side pressure is less than 50 psi (3.5 kg/cm² ), then open low-side valve and complete system discharge.
Remove compressor from vehicle. Drain, measure, and discard refrigerant oil from old compressor. Drain shipping oil from replacement compressor into a separate, clean container.
Add refrigerant oil to replacement compressor equal to amount drained from old compressor. Ensure that at least 0.7 ounce of refrigerant oil is added to replacement compressor. If any other A/C system components are replaced, add refrigerant oil as specified. See COMPONENT REFRIGERANT OIL CAPACITIES (SUBARU - ZEXEL ROTARY VANE) table.

COMPONENT REFRIGERANT OIL CAPACITIES (SUBARU - ZEXEL ROTARY VANE)

Component

Ounces

Compressor

⁽¹⁾

Condenser

0.07

Evaporator

3.9

Receiver-Drier

0.2

Refrigerant Hose

0.03

⁽¹⁾	Ensure replacement compressor contains refrigerant oil equal to amount drained from old compressor, but at least amount 0.7 ounce.