Subaru Legacy (2005 year). Service manual — part 866
AC-33
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Control Unit (Auto A/C Model)
14.Control Unit (Auto A/C Model)
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the glove box. <Ref. to EI-51, REMOV-
AL, Glove Box.>
3) Remove the screw, disconnect the connector
and remove the control unit.
B: INSTALLATION
Install in the reverse order of removal.
AC-00919
AC-34
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Compressor
15.Compressor
A: INSPECTION
1. MAGNETIC CLUTCH CLEARANCE
Check the clearance of entire circumference
around the drive plate and pulley.
Standard:
0.45
±
0.15 mm (0.0177
±
0.0059 in)
2. MAGNETIC CLUTCH OPERATION
1) Disconnect the compressor connector.
2) Connect the battery positive (+) terminal to ter-
minal No. 1 of compressor connector, and negative
(
−) terminal to terminal No. 2.
3) Check the magnet clutch engagement.
If NG, replace the compressor.
B: REMOVAL
1) Perform the compressor oil return operation.
<Ref. to AC-25, PROCEDURE, Compressor Oil.>
2) Turn the A/C switch to OFF and stop the engine.
3) Using the refrigerant recovery system, dis-
charge refrigerant. <Ref. to AC-20, PROCEDURE,
Refrigerant Recovery Procedure.>
4) Disconnect the ground cable from battery.
5) Remove the V-belts. <Ref. to ME(H4SO 2.0)-37,
REMOVAL, V-belt.> <Ref. to ME(H4DOTC)-40,
REMOVAL, V-belt.> <Ref. to ME(H6DO)-33, RE-
MOVAL, V-belt.>
6) Remove the generator. <Ref. to SC(H4SO 2.0)-
14, REMOVAL, Generator.>
7) Remove the bolt and remove the low-pressure
hose and high-pressure hose.
8) Disconnect the compressor harness from body
harness.
9) Remove the bolts and remove compressor
bracket.
• H4 model
• H6 model
10) Remove the bolts, and then remove the bracket
from compressor.
AC-00771
AC-00772
AC-00773
AC-00920
AC-00774
AC-35
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Compressor
C: INSTALLATION
1) Install in the reverse order of removal.
2) Replace the O-rings on low-/high-pressure hos-
es with new ones, then apply compressor oil.
3) When replacing the compressor, adjust amount
of compressor oil. <Ref. to AC-25, PROCEDURE,
Compressor Oil.>
4) Charge refrigerant. <Ref. to AC-21, PROCE-
DURE, Refrigerant Charging Procedure.>
Tightening torque:
Refer to “COMPONENT” of “General Descrip-
tion”. <Ref. to AC-10, AIR CONDITIONING
UNIT, COMPONENT, General Description.>
<Ref. to AC-11, COMPRESSOR, COMPO-
NENT, General Description.>
AC-36
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Condenser
16.Condenser
A: REMOVAL
1) Using the refrigerant recovery system, dis-
charge refrigerant. <Ref. to AC-20, PROCEDURE,
Refrigerant Recovery Procedure.>
2) Disconnect the ground cable from battery.
3) Disconnect the pressure hose and pipe from
condenser.
4) Remove the radiator bracket (A) and hood stay
(B).
5) Remove the front grille. <Ref. to EI-24, REMOV-
AL, Front Grille.>
6) Remove two bolts. While lifting condenser, pull it
out through the space between radiator and radia-
tor panel.
CAUTION:
• Be careful not to damage the condenser fins.
If a damaged fin is found, repair it using a thin
screwdriver.
• If the condenser is replaced, add an appropri-
ate amount of compressor oil to the compres-
sor. <Ref. to AC-25, REPLACEMENT,
Compressor Oil.>
B: INSTALLATION
1) Install in the reverse order of removal.
CAUTION:
Replace the O-rings on hoses or pipes with new
ones, and then apply compressor oil. Confirm
that lower guide of condenser (A) has been fit-
ted into holes on radiator panel.
2) Charge refrigerant. <Ref. to AC-21, PROCE-
DURE, Refrigerant Charging Procedure.>
Tightening torque:
Refer to “COMPONENT” of “General Descrip-
tion”. <Ref. to AC-10, AIR CONDITIONING
UNIT, COMPONENT, General Description.>
<Ref. to CO(H4SO 2.0)-5, RADIATOR AND
RADIATOR FAN, COMPONENT, General De-
scription.>
C: INSPECTION
1) Check no dust or insects are found on the con-
denser fins. Air-blow or flush fins with water as
needed.
2) Inspect for oil leakage from condenser. If a fail-
ure is found, replace the condenser with a new one.
AC-00775
AC-00776
(A)
(A)
(B)
AC-00777
AC-00631
(A)
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