Subaru Legacy (2005 year). Manual - part 512

4AT-29

AUTOMATIC TRANSMISSION

General Description

18675AA000

DIFFERENTIAL OIL 
SEAL INSTALLER

Used for installing differential side retainer oil 
seal.

398497701

SEAT

Used for installing needle bearing.

899524100

PULLER SET

Used for bolt only.
• Used with PULLER SET (499737100).
• Used with PULLER (499737000).

(1) PULLER
(2) Cap

499247300

INSTALLER

Used for installing oil pump housing retainer oil 
seal.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

ST18675AA000

ST-398497701

ST-899524100

ST-499247300

4AT-30

AUTOMATIC TRANSMISSION

General Description

2. GENERAL TOOL

18482AA000

(Newly adopted tool)

CARTRIDGE

Troubleshooting for electrical system.

22771AA030

SUBARU SELECT 
MONITOR KIT

Troubleshooting for electrical system.
• English: 22771AA030 (Without printer)
• German: 22771AA070 (Without printer)
• French: 22771AA080 (Without printer)
• Spanish: 22771AA090 (Without printer)

TOOL NAME

REMARKS

Depth gauge

Used for measuring transmission end play.

Thickness gauge

Used for measuring clearance of clutch, brake and oil pump.

Micro meter

Used for measuring thickness of drive pinion.

Spring balance

Used for measuring starting torque of drive pinion.

Circuit tester

Used for measuring resistance and voltage.

TORX

®

 T70

Used for removing and installing differential gear oil drain plug.

Push/pull gauge

Used for measuring piston stroke of each clutch.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

ST18482AA000

ST22771AA030

4AT-31

AUTOMATIC TRANSMISSION

Automatic Transmission Fluid

2. Automatic Transmission Flu-

id

A: INSPECTION

NOTE:
The level of ATF varies with fluid temperature. Pay
attention to the ATF temperature when checking
ATF level.
1) Raise the ATF temperature by driving a distance
of 5 to 10 km (3 to 6 miles). Otherwise, idle the en-
gine to raise ATF temperature to 70 — 80

°C (158

— 176

°F) on Subaru Select Monitor. <Ref. to

4AT(diag)-16, READ CURRENT DATA, OPERA-
TION, Subaru Select Monitor.>
2) Park the vehicle on a level surface.
3) After selecting all positions (P, R, N, D), set the
select lever in “P” range. Measure the ATF level
with engine idling for one or two minutes.

4) Make sure that ATF level is above the center be-
tween upper and lower marks at HOT side.
5) If the ATF level is below the center between up-
per and lower marks, add the recommended ATF
until the fluid level exceeds the center between up-
per and lower marks.

CAUTION:
• Use care not to exceed the upper level.
• When the transmission is cold, be careful no
to add ATF to the upper mark. Overfilling of ATF
may cause oil splashing.
6) Raise the ATF temperature by driving a distance
of 5 to 10 km (3 to 6 miles). Otherwise, idle the en-
gine to raise ATF temperature to 70 — 80

°C (158

— 176

°F) on Subaru Select Monitor. <Ref. to

4AT(diag)-16, READ CURRENT DATA, OPERA-
TION, Subaru Select Monitor.>
7) Check the ATF for leaks.
Visually check for leaks in the transmission. If there
are leaks, replace the gasket, oil seal, plug or other
parts.

B: REPLACEMENT

1) Lift up the vehicle.
2) Remove the ATF drain plug to drain ATF.

CAUTION:
Directly after the vehicle has been running, the 
ATF is hot. Be careful not to burn yourself.
3) Check the condition of ATF. <Ref. to 4AT-32,
CONDITION CHECK, Automatic Transmission
Fluid.>
4) Tighten the ATF drain plug.

NOTE:
Use a new gasket.

Tightening torque:

25 N

⋅

m (2.5 kgf-m, 18.4 ft-lb)

5) Lower the vehicle.
6) Pour ATF from the oil charge pipe.

Recommended fluid:

SUBARU ATF (Part No. K0410Y0700) or IDE-
MITSU “Apolloil ATF HP”, Castrol “Transmax 
J”.

NOTE:
If the ATF above are not available, use Dexron III.

Capacity:

Fill the same amount of ATF when drained.

Capacity when transmission is overhauled:

2.0 L model

8.4 — 8.7 

2 (8.9 — 9.2 US qt, 7.4 — 7.7 Imp 

qt)

2.5 L model

9.3 — 9.6 

2 (9.8 — 10.1 US qt, 8.2 — 8.4 Imp 

qt)

7) Bleed the air of control valve.
<Ref. to 4AT-64, Air Bleeding of Control Valve.>
8) Check the level and leaks of ATF.
<Ref. to 4AT-31, INSPECTION, Automatic Trans-
mission Fluid.>

(A) ATF level gauge

(B) Upper level

(C) Lower level

AT-01323

COLD

LF

HOT

LF

(C)

(C)

(B)

(B)

(A)

(A) Oil pan

(B) ATF drain plug

AT-01332

(B)

(A)

4AT-32

AUTOMATIC TRANSMISSION

Automatic Transmission Fluid

C: CONDITION CHECK

NOTE:
When replacing ATF, check the inside condition of transmission body by inspecting the drained ATF.

Fluid condition

Trouble and possible cause

Corrective action

Large amount of metallic pieces are 
found.

Excessive wear of the internal of the trans-
mission body

Replace ATF and check if AT operates 
correctly.

Thick and varnish-form fluid

Burned clutch and etc.

Replace ATF and check the AT body or 
vehicle for faulty.

Clouded fluid or bubbles are found in 
fluid.

Water mixed in fluid

Replace ATF and check the water enter-
ing point.