Subaru 2009 IMPREZA, Service Manual

Page: 2706 / 3619

AC-26
Compressor Oil
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
6. Compressor Oil
A: PROCEDURE
NOTE:
Before making repairs, perform the oil return oper-
ation to return the compressor oil in circulation with
the refrigerant to the compressor.
1) Increase the engine to 1,500 rpm.
2) Turn on the A/C switch.
3) Turn the temperature control switch to MAX
COOL.
4) Put in RECIRC position.
5) Turn the blower control switch to HI.
6) Leave in this condition for 10 minutes.
B: REPLACEMENT
NOTE:
• If a component has been replaced, add an ap-
propriate amount of compressor oil (same as the
amount of remaining oil in removed component).
• When replacing the compressor, the new com-
pressor will already have the specified amount of
oil in it. Adjust the oil amount (so that the amount
remains the same as that of the removed compres-
sor) and install the new compressor.
• Since the hygroscopicity of compressor oil is
high, perform this series of works quickly.