Subaru Outback: General Description
A: SPECIFICATION
1. HEATER SYSTEM

2. A/C SYSTEM

3. BASIC OPERATION
The cooling system cools down the compartment by using the pipes connecting
parts and cycling the evaporable
liquid (refrigerant) within the sealed system in a repeated process of
"vaporization - liquefaction -
re-vaporization".


B: LOCATION
1. ELECTRICAL PARTS (ACTUATORS AND SENSORS)

- Ambient sensor
- Pressure sensor
- Flow sensor

- Air mix door actuator (driver's
seat)
- In-vehicle sensor
- Evaporator sensor
- Air mix door actuator (passenger's
seat)
- Intake door actuator
- Mode door actuator
- Sunload sensor
C: COMPONENT
1. HEATER COOLING UNIT

- Lining
- Expansion valve
- Gasket
- Heater case LH
- Evaporator
- Evaporator sensor
- Center plate
- Heater case RH
- Heater pipe clamp
- Heater pipe cover
- Heater core ASSY
Tightening torque: N*m (kgf-m, ft-lb)
T: 3.5 (0.36, 2.6)

- Mode main lever
- Cover
- Air mix actuator (driver's seat)
- Mode actuator
- Gasket
- Unit ASSY
- Air mix actuator (passenger's
seat)
- Aspirator
- Aspirator hose
- Foot duct LH
- Foot duct RH
- Gasket
- Heater case lower
- Drain hose
Tightening torque: N*m (kgf-m, ft-lb)
T: 7.5 (0.76, 5.5)
2. BLOWER MOTOR UNIT

- Gasket
- Air duct cover ASSY
- Intake door actuator
- Intake door link
- FRESH/RECIRC door
- Upper case
- Lower case
- Control module
- Blower motor ASSY
- Relay holder bracket
- Blower motor relay
- Power transistor (auto A/C model)
or resistor (manual A/C)
- Filter
- Filter cover
Tightening torque: N*m (kgf-m, ft-lb)
T: 7.5 (0.76, 5.5)
3. CONTROL MODULE

- Control module

- Control module
4. AIR CONDITIONING UNIT

- Condenser
- Hose (high-pressure)
- Hose (low-pressure)
- Compressor
- O-ring
- Pipe
- Bracket
Tightening torque: N*m (kgf-m, ft-lb)
T1: 5 (0.51, 3.7)
T2: 7.5 (0.76, 5.5)
T3: 10 (1.02, 7.4)
5. COMPRESSOR

- A/C compressor stay
- Compressor
- V-belt (6 PK)
- Compressor bracket (H4 model)
- Compressor bracket (H6 model)
- Connector bracket
- Stopper rod LH (H4 model)
- Stopper rod RH (H4 model)
Tightening torque: N*m (kgf-m, ft-lb)
T1: 22 (2.24, 16.2)
T2: 26.5 (2.70, 19.5)
T3: 36 (3.67, 26.6)
6. HEATER DUCT

- Defroster nozzle ASSY
- Side defroster duct RH
- Side defroster duct LH
- Side vent duct RH
- Side vent duct LH
- Front vent duct

- Rear heater duct LH
- Rear heater duct RH
- Extension duct LH
- Extension duct RH
D: CAUTION
- Before disassembling or reassembling parts, always disconnect the
battery ground cable from battery.
When replacing the radio, control module, and other parts provided with
memory functions, record the memory
contents before disconnecting the battery ground cable. Otherwise, the
memory is cleared.
- Reassemble the parts in the reverse order of disassembly procedure
unless otherwise indicated.
- Connect the connectors securely during reassembly.
- After reassembly, make sure that the functional parts operate normally.
1. HFC-134A A/C SYSTEM

2. COMPRESSOR OIL
- HFC-134a compressor oil has no compatibility with that of CFC-12 system.
- Use only the manufacturer-authorized compressor oil, ND-OIL8, for the
HFC-134a system.
- Do not mix multiple compressor oils.
If CFC-12 compressor oil is used in the HFC-134a A/C system, the compressor
may become stuck due to
poor lubrication, or the refrigerant may leak due to swelling of rubber
parts.
On the other hand, if HFC-134a compressor oil is used in a CFC-12 A/C
system, the durability of the A/C system
will be lowered.
- HFC-134a compressor oil is very hygroscopic. When replacing or
installing/removing A/C parts, immediately
isolate the oil from atmosphere using a plug or tape. In order to avoid
moisture, store the oil in a container
with its cap tightly closed.
3. REFRIGERANT
- CFC-12 refrigerant cannot be used in a HFC-134a A/C system. HFC-134a
refrigerant, also cannot be used
in a CFC-12 A/C system.
- If an incorrect or no refrigerant is used, it will result in poor
lubrication and the compressor itself may be
damaged.
4. HANDLING OF REFRIGERANT

- Goggles
- Gloves
- Do not apply impact.
- No direct heat on container
- Do not discharge
5. O-RING CONNECTIONS
- Always use a new O-ring.
- In order to keep the O-rings free of lint which will cause a refrigerant
gas leak, perform work without using
gloves or waste cloths.
- Apply compressor oil to O-rings to avoid sticking, before installation.
- Use a torque wrench to tighten the O-ring fittings. Over-tightening will
result in damage of the O-ring and
deformation of the pipe end.
- If the work is interrupted before completing pipe connections, recap the
pipes, components and fittings
with a plug or tape to prevent foreign matter from entering.
- Visually check the surfaces and mating surfaces of O-rings, threads and
connecting points. If a failure is
found, replace the applicable parts.
- Install the O-rings straight against the pipe groove.

- O-ring
- OK
- NG

- After tightening, use a clean cloth to remove excess compressor oil from
the connections and any oil which
may have run on the vehicle body or other parts.
- If any leakage is suspected after tightening, do not tighten the
connections further, but disconnect the connections,
remove the O-rings, and check the O-rings, threads, and connections.
E: PREPARATION TOOL
1. SPECIAL TOOL

2. GENERAL TOOL
CAUTION:
When working on vehicles with a HFC-134a system, only use HFC-134a specified
tools and parts. Do
not mix CFC-12 tools and parts. If HFC-134a and CFC-12 refrigerant or compressor
oil is mixed, it will
result in poor lubrication and the compressor itself may be damaged.
In order to prevent the mixture of HFC-134a and CFC-12 parts and liquid, the
type of tool and screw,
and the replacement valves used are different. The gas leak detectors for the
HFC-134a and CFC-12
systems must also not be interchanged.



READ NEXT:
A: WIRING DIAGRAM
Refer to "Air Conditioning System" in the wiring diagram. <Ref. to WI-53,
WIRING DIAGRAM, Air Conditioning
System.>
B: ELECTRICAL SPECIFICATION
Refer to "Auto A/C Control Modu
A: LOCATION
NOTE:
For other related fuses, refer to the wiring diagram. <Ref. to WI-15, Power
Supply Circuit.>
B: INSPECTION
1. CHECK FUSE.
1) Remove the fuse and inspect visually.
2) If the
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:
CAUTION
Never replace a fuse with one having a higher rating or with material other than
a fuse because serious damage or a fire could result.
The fuses are designed to melt during an overload to prevent damage to the wiring
harness and electrical equipment. The fuses are located in two fuse b
Compass calibration zones
1. Refer to the “Compass calibration zones” map shown above to verify that the
compass zone setting is correct for your geographical location.
2. Press and hold the compass display button for 3 seconds until the zone selection
comes up (a number will be displaye
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