Subaru Legacy (2005 year). Manual - part 591

5AT-63

AUTOMATIC TRANSMISSION

ATF Cooler Pipe and Hose

21.ATF Cooler Pipe and Hose

A: REMOVAL

1. EXCEPT FOR ATF COOLER MODEL 
WITH WARMER FUNCTION

1) Set the vehicle on a lift.
2) Remove the battery.
3) Lift-up the vehicle.
4) Remove the under cover.
5) Remove the radiator under cover.

6) Disconnect the ATF cooler hose from radiator.

NOTE:
• Do not use a screwdriver or other pointed tools.
• When hard to remove the hose, wrap the hose
with cloth to prevent from damaging, and then turn
with pliers and pull out with hand straightly.

7) Disconnect the ATF cooler hoses from pipes.

NOTE:
• Do not use a screwdriver or other pointed tools.
• When hard to remove the hose, wrap the hose
with cloth to prevent from damaging, and then turn
with pliers and pull out with hand straightly.

8) Disconnect the ATF cooler pipe from frame.

AT-01344

AT-01345

AT-01388

AT-01347

5AT-64

AUTOMATIC TRANSMISSION

ATF Cooler Pipe and Hose

9) Remove the oil cooler inlet and outlet pipes.

NOTE:
When disconnecting the outlet pipe, be careful not
to lose the ball and spring used with retaining
screw.

2. ATF COOLER MODEL WITH WARMER 
FUNCTION

1) Lift-up the vehicle.
2) Remove the front exhaust pipe.
<Ref. to EX(H6DO)-4, REMOVAL, Front Exhaust
Pipe.>
3) Disconnect the inlet and outlet of the ATF cooler
hoses from oil cooler pipe.

4) Remove the union screw of oil cooler inlet and
outlet pipes.

5) Remove the bolts which secure pipe on the side
of transmission.

6) Lower the vehicle.
7) Remove the air intake chamber.
<Ref. to IN(H6DO)-7, REMOVAL, Air Intake Cham-
ber.>
8) Remove the resonator chamber.
<Ref. to IN(H6DO)-9, REMOVAL, Resonator
Chamber.>
9) Remove the oil charge pipe. <Ref. to 5AT-69,
REMOVAL, Oil Charge Pipe.>
10) Disconnect the ATF cooler hoses and pipes.

11) Remove the bolt which secure pitching stopper
bracket and the bolt on the side of transmission,
and then remove ATF cooler pipe.

(A) Outlet pipe

(B) Inlet pipe

AT-01383

(A)

(B)

AT-02027

AT-02029

AT-02028

AT-02030

AT-02033

5AT-65

AUTOMATIC TRANSMISSION

ATF Cooler Pipe and Hose

12) Remove the ATF cooler from the installation
bracket as necessary.

13) Remove the ATF cooler bracket from transmis-
sion body as necessary.

B: INSTALLATION

1. EXCEPT FOR ATF COOLER MODEL 
WITH WARMER FUNCTION

1) Install the oil cooler inlet and outlet pipes with
new washer.

Tightening torque:

T1: 25 N

⋅

m (2.5 kgf-m, 18.4 ft-lb)

T2: 41 N

⋅

m (4.2 kgf-m, 30.2 ft-lb)

T3: 45 N

⋅

m (4.6 kgf-m, 33.2 ft-lb)

2) Install the ATF cooler pipe to frame.

3) Connect the ATF cooler hose to pipe on the
transmission side.

NOTE:
• Install so that the hose is not folded over, exces-
sively bent or twisted.
• Be careful to insert the hose to the specified po-
sition.

4) Connect the ATF cooler hose to pipe on the ra-
diator side.

NOTE:
• Install so that the hose is not folded over, exces-
sively bent or twisted.

AT-02031

AT-02032

AT-03133

T2

T1   

T2

T3

AT-01347

AT-01388

5AT-66

AUTOMATIC TRANSMISSION

ATF Cooler Pipe and Hose

• Be careful to insert the hose to the specified po-
sition.

5) Install the radiator under cover.

Tightening torque:

4.9 N

⋅

m (0.5 kgf-m, 3.6 ft-lb)

6) Install the under cover.
7) Install the battery.
8) Fill ATF. <Ref. to 5AT-28, Automatic Transmis-
sion Fluid.>

NOTE:
Make sure there are no ATF leaks in connections of
the transmission, radiator, pipes and hoses.

2. ATF COOLER MODEL WITH WARMER 
FUNCTION

1) Install the ATF cooler bracket if it is removed
from transmission body.

Tightening torque:

25 N

⋅

m (2.5 kgf-m, 18.4 ft-lb)

2) Install the ATF cooler if it is removed from instal-
lation bracket.

Tightening torque:

25 N

⋅

m (2.5 kgf-m, 18.4 ft-lb)

3) Install the pitching stopper securing bracket and
bolt in the side of transmission.

4) Install the ATF cooler hoses and pipes.

5) Connect the engine harness connectors, and
then install the engine hanger rear.
6) Install the oil charge pipe. <Ref. to 5AT-69, IN-
STALLATION, Oil Charge Pipe.>
7) Install the resonator chamber.
<Ref. to IN(H6DO)-9, INSTALLATION, Resonator
Chamber.>
8) Install the air intake chamber.
<Ref. to IN(H6DO)-7, INSTALLATION, Air Intake
Chamber.>
9) Lift-up the vehicle.

AT-01345

AT-01344

AT-02032

AT-02031

AT-02033

AT-02030