Subaru Legacy (2005 year). Manual - part 523

4AT-73

AUTOMATIC TRANSMISSION

ATF Cooler (with Warmer Function)

24.ATF Cooler (with Warmer 

Function)

A: REMOVAL

1) Drain engine coolant. <Ref. to CO(H4SO 2.0)-
13, REPLACEMENT, Engine Coolant.>
2) Remove the air intake chamber. <Ref. to
IN(H4SO 2.0)-7, REMOVAL, Air Intake Chamber.>
3) Disconnect the engine harness, and then re-
move the engine harness connector from engine
harness bracket.
4) Remove the engine harness bracket.

5) Disconnect the ATF cooler hose from the pipe
on transmission side.

6) Disconnect the engine coolant outlet hose from
warmer cock assembly.

7) Disconnect the engine coolant inlet hose from
cylinder block.

8) Remove the ATF cooler assembly from trans-
mission.

AT-02179

AT-02171

AT-02172

AT-02173

AT-03199

4AT-74

AUTOMATIC TRANSMISSION

ATF Cooler (with Warmer Function)

B: INSTALLATION

1) Install the ATF cooler assembly to transmission.

Tightening torque:

23 N

⋅

m (2.3 kgf-m, 17 ft-lb)

2) Connect the engine coolant inlet hose to cylinder
block.

3) Connect the engine coolant outlet hose to warm-
er cock assembly.

4) Connect the ATF cooler hose to pipe on trans-
mission side.

5) Install the engine harness bracket.

Tightening torque:

T1: 16 N

⋅

m (1.6 kgf-m, 11.6 ft-lb)

T2: 36 N

⋅

m (3.6 kgf-m, 26.0 ft-lb)

6) Install the harness connector  to  bracket,  and
connect the harness.
7) Install the air intake chamber. <Ref. to IN(H4SO
2.0)-7, INSTALLATION, Air Intake Chamber.>
8) Fill with engine coolant. <Ref. to CO(H4SO 2.0)-
13, REPLACEMENT, Engine Coolant.>
9) Check the ATF level. <Ref. to 4AT-31, INSPEC-
TION, Automatic Transmission Fluid.>

AT-03199

AT-02173

AT-02172

AT-02171

AT-02208

T1

T2

4AT-75

AUTOMATIC TRANSMISSION

ATF Cooler (with Warmer Function)

C: DISASSEMBLY

1) Remove each hose from ATF cooler.

2) Remove the bracket from ATF cooler.

3) Remove the clip from bracket.

D: ASSEMBLY

1) Install the clip to bracket.

2) Install the bracket.

Tightening torque:

23 N

⋅

m (2.3 kgf-m, 17 ft-lb)

(A) ATF cooler inlet hose

(B) ATF cooler outlet hose

(C) Engine coolant inlet hose

(D) Engine coolant outlet hose

AT-02174

(C)

(C)

(B)

(A)

(D)

AT-03200

AT-03201

AT-03201

AT-03200

4AT-76

AUTOMATIC TRANSMISSION

ATF Cooler (with Warmer Function)

3) Install each hose to ATF cooler.

NOTE:
Be careful to the direction of hose.

E: INSPECTION

Repair or replace any defective hoses, pipes,
clamps, and washers found in the inspection be-
low.
1) Check each connection for leaks of ATF or en-
gine coolant.
2) Check the clamp for deformation.
3) Lightly bend the hose and check for cracks in the
surface or other damages.
4) Pinch the hose with your fingers and check for
poor elasticity. Also check for poor elasticity in the
parts where the clamp was installed by pressing
with your fingernail.
5) Check the tip of each hose for peeling, cracks
and deformation.
6) Check the ATF cooler for damage.

(A) ATF cooler inlet hose

(B) ATF cooler outlet hose

(C) Engine coolant inlet hose

(D) Engine coolant outlet hose

AT-02174

(C)

(C)

(B)

(A)

(D)