Subaru Outback: Heater Core
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Using the refrigerant recovery system, discharge refrigerant. <Ref. to AC-24,
PROCEDURE, Refrigerant
Recovery Procedure.>
3) Drain the coolant from the radiator.
- H4 non-turbo model: <Ref. to CO(H4SO)-14, DRAINING OF ENGINE COOLANT,
REPLACEMENT, Engine
Coolant.>
- H4 turbo model: <Ref. to CO(H4DOTC)-14, DRAINING OF ENGINE COOLANT,
REPLACEMENT, Engine
Coolant.>
- H6 model: <Ref. to CO(H6DO)-12, DRAINING OF ENGINE COOLANT, REPLACEMENT,
Engine Coolant.>
4) Remove the connector and bolts, and remove the high-pressure hose and AC
pipe from the expansion
valve.
5) Loosen the heater hose clamps and remove the hoses.

6) Remove the instrument panel assembly. <Ref. to EI-76, REMOVAL, Instrument
Panel Assembly.>
7) Remove the engine control module (ECM).
- Release the lock and remove the relay holder.
- Remove the nuts, and remove the engine control module (ECM).

8) Remove the heater and cooling unit.
- Remove the bolt and remove the heater and cooling unit.

9) Disconnect the claws and then remove the aspirator hose.

10) Remove the screws and remove the foot duct (LH).

11) Remove the heater core.
- Remove the screw and remove the heater pipe clamp.

- Pull out the heater core from the heater and cooling unit assembly.

B: INSTALLATION
CAUTION:
- Do not start the engine before charging refrigerant.
- If the engine is started with no refrigerant charge, replace the
compressor.
- Replace O-rings and pipe clamps with new parts and install securely.
1) Install each part in the reverse order of removal.
NOTE:
Refer to "INSTALLATION" of "Instrument Panel Assembly". <Ref. to EI-95,
INSTALLATION, Instrument Panel
Assembly.>
2) Fill engine coolant.
- H4 non-turbo model: <Ref. to CO(H4SO)-14, FILLING OF ENGINE COOLANT,
REPLACEMENT, Engine
Coolant.>
- H4 turbo model: <Ref. to CO(H4DOTC)-14, FILLING OF ENGINE COOLANT,
REPLACEMENT, Engine
Coolant.>
- H6 model: <Ref. to CO(H6DO)-12, FILLING OF ENGINE COOLANT, REPLACEMENT,
Engine Coolant.>
3) Charge refrigerant. <Ref. to AC-25, PROCEDURE, Refrigerant Charging
Procedure.>
Tightening torque:
Heater cooling unit: <Ref. to AC-6, HEATER COOLING UNIT, COMPONENT, General
Description.>
Blower motor unit: <Ref. to AC-8, BLOWER MOTOR UNIT, COMPONENT, General
Description.>
READ NEXT:
A: REMOVAL
1. AUTO A/C MODEL
1) Disconnect the ground cable from battery.
2) Remove the center panel assembly.
CAUTION:
Do not put your finger on the fin of the air vent grille. Doing so may damage
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Using the refrigerant recovery system, discharge refrigerant. <Ref. to AC-24,
PROCEDURE, Refrigerant
Recovery Procedure.>
3) Drain t
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Using the refrigerant recovery system, discharge refrigerant. <Ref. to AC-24,
PROCEDURE, Refrigerant
Recovery Procedure.>
3) Drain t
SEE MORE:
A: REMOVAL
1) Remove the transmission assembly from the vehicle. <Ref. to CVT-55,
REMOVAL, Automatic Transmission
Assembly.>
2) Remove the air breather hose. <Ref. to CVT-132, REMOVAL, Air Breather Hose.>
3) Remove the oil pan and control valve body. <Ref. to CVT-111, REMOVAL, Cont
A: SPECIFICATION
1. MANUAL TRANSMISSION AND DIFFERENTIAL
2. TRANSMISSION GEAR OIL
Recommended oil:
GL-5 (75W-90) or equivalent
B: COMPONENT
1. TRANSMISSION CASE
Transmission case ASSY
Gasket
Drain plug
Harness clip
Clamp
Harness bracket
Oil level gauge
Transmission radio ground cord
Sele
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