Subaru Legacy (2005 year). Manual - part 864

AC-25

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

Compressor Oil

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) Turn the FRESH/RECIRC switch to RECIRC.
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. Install the new compressor after removing
the same amount of oil that is remaining in the com-
pressor removed.

AC-26

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

Blower Motor Unit Assembly

7. Blower Motor Unit Assembly

A: REMOVAL

1) Disconnect the ground cable from battery.
2) Remove the glove box. <Ref. to EI-51, REMOV-
AL, Glove Box.>
3) Disconnect the connectors of A/C control mod-
ule, intake door actuator, blower motor, power tran-
sistor and blower resistor. 
4) Loosen the bolt and nut to remove blower motor
unit assembly.

B: INSTALLATION

Install in the reverse order of removal.

Tightening torque:

Refer to “COMPONENT” of “General Descrip-
tion”. <Ref. to AC-5, HEATER COOLING 
UNIT, COMPONENT, General Description.> 
<Ref. to AC-7, BLOWER MOTOR UNIT, COM-
PONENT, General Description.>

AC-00914

AC-27

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

Blower Motor

8. Blower Motor

A: REMOVAL

1) Disconnect the ground cable from battery.
2) Remove the glove box lower cover. <Ref. to EI-
51, REMOVAL, Glove Box.>
3) Disconnect the connector of blower motor.
4) Loosen the screw to remove blower motor.

B: INSTALLATION

Install in the reverse order of removal.

C: INSPECTION

Connect the battery positive (+) terminal to terminal
No. 2 of blower motor, and negative (

−) terminal to

terminal No. 1. Check the blower motor for smooth
rotation.

AC-00957

AC-00915

1

2

AC-28

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

Power Transistor (Auto A/C Model)

9. Power Transistor (Auto A/C 

Model)

A: REMOVAL

1) Remove the glove box lower cover on passen-
ger side. <Ref. to EI-51, REMOVAL, Glove Box.>
2) Disconnect the power transistor connector.
3) Remove two screws, and then remove the pow-
er transistor.

B: INSTALLATION

Install in the reverse order of removal.

AC-00916