Subaru Legacy III (2000-2003 year). Manual - part 860

AC-28

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

REFRIGERANT LEAK CHECK

12) Turn the ignition key to ON position, and run
the blower at high speed for 1 minute. Stop the
blower to check the ventilation grille on the instru-
ment panel. While moving the tester closer to the
grille, run the blower for 1 or 2 seconds, then stop it.
Check the grille at that point for at least 10 seconds.

13) Check the valve in the service port.
14) Visually check the rubber seal in the service
port cap.

AC-00037

AC-00038

AC-29

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

COMPRESSOR OIL

6. Compressor Oil

A: OPERATION

NOTE:
Before making repairs, conduct the oil return oper-
ation to return the compressor oil in circulation with
the refrigerant to the compressor.
1) Increase engine speed 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 is replaced, add an appropriate
amount of compressor oil.
• 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.

Replacement parts

Amount of oil replenishment

Evaporator

114 m

2

 (3.9 US fl oz, 4.0 Imp fl oz)

Receiver drier

5 m

2

 (0.2 US fl oz, 0.2 Imp fl oz)

Condenser

2 m

2

 (0.07 US fl oz, 0.07 Imp fl oz)

Hose

1 m

2

 (0.03 US fl oz, 0.04 Imp fl oz)

AC-30

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

HEATER UNIT

7. Heater Unit

A: REMOVAL

1) Disconnect ground cable from battery.
2) Pull out LLC.
3) Remove air cleaner case.
4) Release heater hose clamps in engine compart-
ment to remove the hoses.

5) Remove A/C unit. <Ref. to AC-40, Intake Unit.>
6) Using a Torx wrench, remove airbag control unit.

7) Disconnect connector of airbag main harness
near steering support beam.

8) Loosen bolts and nuts of support beam to re-
move support beam.
9) Disconnect servo connector.
10) Loosen bolts and nuts of heater unit to remove
heater unit.

B: INSTALLATION

Install in the reverse order of removal.

AC-00272

AC-00273

AC-00274

AC-00275

AC-31

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

BLOWER MOTOR ASSEMBLY

8. Blower Motor Assembly

A: REMOVAL

1) Disconnect ground cable from battery.
2) Remove glove box. <Ref. to EI-32, REMOVAL,
Glove Box.>
3) Remove mounting bolts of harness stay.

4) Remove nuts of keyless unit stay and CRU unit
stay.

5) Disconnect connector of sunroof.
6) Disconnect servo connector.

7) Disconnect motor connector.

8) Remove 3 screws.
9) Disconnect aspirator pipe (A) and remove blow-
er motor.

B: INSTALLATION

Install in the reverse order of removal.

C: INSPECTION

Connect motor connector terminal 1 from the bat-
tery to the positive (+) lead and terminal 2 to the
negative (

−

) lead. Make sure the motor runs

smoothly.

AC-00276

AC-00277

AC-00278

AC-00279

AC-00280

( A )

AC-00281