Page 2331 of 2870
4AT-19
AUTOMATIC TRANSMISSION
General Description
D: PREPARATION TOOL
1. SPECIAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
498575400 OIL PRESSURE
GAUGE ASSYUsed for measuring oil pressure.
498897200 OIL PRESSURE
GAUGE ADAPTERUsed for oil pump housing when measuring
reverse clutch pressure and line pressure.
498897700 ADAPTER SET Used for measuring transfer clutch pressure.
498545400 FILTER WRENCH Used for removing and installing ATF filter.
ST-498575400
ST-498897200
ST-498897700
ST-498545400
Page 2332 of 2870
4AT-20
AUTOMATIC TRANSMISSION
General Description
498277200 STOPPER SET Used for removing and installing automatic
transmission assembly.
41099AC000 ENGINE SUPPORT
ASSEMBLYUsed for supporting engine.
(1) ENGINE SUPPORT BRACKET
(41099AA010)
(2) ENGINE SUPPORT (41099AA020)
398527700 PULLER ASSY Used for removing extension case roller bear-
ing.
Used for removing extension oil seal.
Used for removing front differential side
retainer bearing outer race.
Used for removing front differential side
retainer oil seal.
498057300 INSTALLER Used for installing extension oil seal. ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST-498277200
(2)(1)
ST41099AC000
ST-398527700
ST-498057300
Page 2334 of 2870
4AT-22
AUTOMATIC TRANSMISSION
General Description
398437700 DRIFT Used for installing torque converter case oil seal.
398487700 INSTALLER Used for installing front differential taper roller
bearing.
398673600 COMPRESSOR Used for removing and installing clutch spring.
498255400 PLATE Used for measuring backlash of hypoid gear. ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST-398437700
ST-398487700
ST-398673600
ST-498255400
Page 2336 of 2870
4AT-24
AUTOMATIC TRANSMISSION
General Description
398623600 SEAT Used for removing spring of transfer clutch pis-
ton.
28399SA000 DRIVE SHAFT
REMOVERUsed for removing axle shaft.
28399SA010 OIL SEAL PROTEC-
TO RUsed for installing axle shaft.
499267300 STOPPER PIN Used for installing inhibitor switch. ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST-398623600
ST28399SA000
ST28399SA010
ST-499267300
Page 2340 of 2870
4AT-28
AUTOMATIC TRANSMISSION
General Description
899580100 INSTALLER Used for press-fitting the ball bearing for transfer
clutch.
18675AA000 DIFFERENTIAL OIL
SEAL INSTALLERUsed for installing differential side retainer oil
seal.
398497701 SEAT Used for installing needle bearing.
899524100 PULLER SET Using the bolt only.
(1) BOLT
Used with PULLER SET (499737100).
Used with PULLER (499737000).
(1) Puller
(2) Cap ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST-899580100
ST18675AA000
ST-398497701
ST-899524100
Page 2341 of 2870
4AT-29
AUTOMATIC TRANSMISSION
General Description
2. GENERAL TOOL
24082AA230
(Newly adopted tool)CARTRIDGE Troubleshooting for electrical system.
22771AA030 SUBARU SELECT
MONITOR KITTroubleshooting 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.
TO RX
® T70Used for removing and installing differential gear oil drain plug.
Push/pull gauge Used for measuring stroke of low & reverse piston.ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST24082AA230
ST22771AA030
Page 2342 of 2870

4AT-30
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.
4AT(H4SO)-18, READ CURRENT DATA, OPERA-
TION, Subaru Select Monitor.>
2) Make sure the vehicle is level.
3) After selecting all positions (P, R, N, D, 3, 2, 1),
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 of
upper level and lower level at HOT side.
If the ATF level is below the lower level, check for
leaks in the transmission. If there are leaks, it is
necessary to repair or replace gasket, oil seals,
plugs or other parts.
5) If the ATF level is below the center between up-
per level and lower level, add the recommended
ATF until the fluid level is found above the center
between upper level and lower level marks.
CAUTION:
Use care not to exceed the upper level.
Remember that the addition of ATF to the up-
per limit mark when the transmission is cold
will overfilling of ATF, causing a transmission
failure.
6) Check ATF level after raising ATF temperature
to 70 — 80°C (158 — 176°F) by running the vehicle
or by idling the engine again.
B: REPLACEMENT
1) Lift-up the vehicle.2) Drain the ATF completely.
CAUTION:
Directly after the engine has been running, the
ATF is hot. Be careful not to burn yourself.
3) Replace the gasket with new one, and then tight-
en the drain plug (ATF).
Tightening torque:
25 N
⋅m (2.5 kgf-m, 18.1 ft-lb)
4) Lower the vehicle.
5) Pour ATF from the ATF charge pipe.
Recommended fluid:
DEXRON III type automatic transmission flu-
id
Capacity:
Fill the same amount of ATF drained from
drain plug hole.
CAPACITY WHEN TRANSMISSION IS OVER-
HAULED:
2.0 L NON-TURBO MODEL
8.4 — 8.72 (8.9 — 9.2 US qt, 7.4 — 7.7 Imp
qt)
EXCEPT 2.0 L NON-TURBO MODEL
9.3 — 9.62 (9.8 — 10.1 US qt, 8.2 — 8.4 Imp
qt)
6) Check the level and leaks of ATF.
mission Fluid.>
(A) ATF level gauge
(B) Upper level
(C) Lower level
AT-00674
COLD
LFHOT LF
(C)
(C)
(B)
(B)
(A)(A) Oil pan
(B) Drain plug (ATF)
(C) Differential gear oil drain plug
AT-00016
(A) (B)
(C)
Page 2343 of 2870

4AT-31
AUTOMATIC TRANSMISSION
Differential Gear Oil
3. Differential Gear Oil
A: INSPECTION
1) Park the vehicle on a level surface.
2) Remove the oil level gauge and wipe it clean.
3) Reinsert the level gauge all the way. Be sure that
the level gauge is correctly inserted and in the
proper orientation.
4) Remove the oil level gauge again, and check the
level. If the differential gear oil level is below the “L”
line, add oil to bring the level up to the “F” line.
5) To prevent overfilling the differential gear oil, do
not add oil above the “F” line.
B: REPLACEMENT
1) Lift-up the vehicle.
2) Remove the differential gear oil drain plug using
TORX
® BIT T70, and drain the differential gear oil
completely.
CAUTION:
Directly after driving the vehicle, the differen-
tial gear oil is hot. Be careful not to burn your-
self.
Be careful not to spill the differential gear oil
on exhaust pipe to prevent it from emitting
smoke or fire. When the differential gear oil is
spilled on exhaust pipe, wipe it away complete-
ly.3) Replace the gasket with new ones, and then
tighten the differential gear oil drain plug using
TORX
® BIT T70.
Tightening torque:
44 N
⋅m (4.5 kgf-m, 32.5 ft-lb)
4) Lower the vehicle.
5) Pour differential gear oil into the differential from
gauge hole.
Recommended gear oil:
Use GL-5 (SAE: 75 W-90) or equivalent.
Differential gear oil capacity:
1.1 — 1.32 (1.2 — 1.4 US qt, 1.0 — 1.1 Imp qt)
6) Check the level of the differential gear oil.
Oil.>
(A) Upper level
(B) Lower level
AT-00017
(A)
(B)
LF
(A) Oil pan
(B) Drain plug (ATF)
(C) Differential gear oil drain plug
AT-00016
(A) (B)
(C)