
PM-16
Automatic Transmission Fluid
PERIODIC MAINTENANCE SERVICES
11. Automatic Transmission Fluid
A: INSPECTION
CAUTION:
The level of ATF varies with fluid temperature.
Pay attention to the fluid 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.
TION, Subaru Select Monitor.>
2) Make sure the vehicle is level.
3) After selecting all positions (P, R, N, D), shift 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 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 is found above the center be-
tween upper and lower marks.
CAUTION:
•Use care not to exceed the upper limit level.
•Adding ATF to the upper limit mark on “HOT”
side when the ATF temperature is below 70°C
(158°F) will overfilling of ATF, causing a trans-
mission 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.
7) Check the ATF for leaks.
Check for leaks in the transmission. If there are
leaks, it is necessary to repair or replace gasket, oil
seals, plugs or other parts.
B: REPLACEMENT
1. AUTOMATIC TRANSMISSION FLUID
1) Drain the ATF by removing drain plug.
NOTE:
Before starting work, cool off the ATF well.
2) Replace the gasket with new one, and then tight-
en the drain plug to specified torque.
Tightening torque:
20 N·m (2.0 kgf-m, 4.5 ft-lb)
3) Pour in the ATF using the oil charge pipe.
Recommended ATF:
Refer to “RM” section.
ed Materials.>
Capacity:
Fill the same amount of ATF when drained.
4) Check the ATF level.
(A) Level gauge
(B) ATF level range at “HOT” [70 to 80°C (158 to
176°F)]
(C) Upper level
(D) Lower level
(E) ATF level range at “COLD” [20 — 30°C (68 —
86°F)]
PI-00190
(A)
(C)
(D)
(E)(D)
(C)
(B)
(A)
F
L
F
HOT
LCOLD
(A) ATF drain plug
(A) Level gauge
(B) ATF level range at “HOT” [70 to 80°C (158 to
176°F)]
(C) Upper level
(D) Lower level
(E) ATF level range at “COLD” [20 — 30°C (68 —
86°F)]
PM-00168
(A)
PI-00190
(A)
(C)
(D)
(E)(D)
(C)
(B)
(A)
F
L
F
HOT
LCOLD

PM-20
Brake Line
PERIODIC MAINTENANCE SERVICES
3) Check the pedal stroke.
While the engine is idling, depress the brake pedal
with a 500 N (51 kgf, 112 lb) load and measure the
distance between the brake pedal and steering
wheel. With the brake pedal released, measure the
distance between pedal and steering wheel again.
The difference between the two measured values
must be less than specified value. If the measured
value is more than specification, there is possibility
of entering air in hydraulic unit.
Brake pedal stroke A:
115 mm (4.5 in)/ 500 N (51 kgf, 112 kg) or less
4) Check to see if air is in the hydraulic brake line
by the feel of pedal operation. If air appears to exist
in the line, bleed it from the system.
5) Check for even operation of all brakes, using a
brake tester or by driving the vehicle for a short dis-
tance on a straight road.
3. BRAKE SERVO SYSTEM
1) With the engine off, depress the brake pedal
several times applying the same pedal force. Make
sure the travel distance should not change.
2) With the brake pedal depressed, start the en-
gine. Make sure the pedal should move slightly to-
ward the floor.
3) With the brake pedal depressed, stop the engine
and keep the pedal depressed for 30 seconds.
Make sure the pedal height should not change.
4) A check valve is incorporated into the vacuum
hose part. Disconnect the vacuum hose to inspect
function of check valve.
Make sure air flows from the booster end to engine
end but does not flow in the opposite direction in
the check valve.
5) Check the vacuum hose for cracks or other dam-
age.
NOTE:
When installing the vacuum hose on the engine
and brake booster, do not use soapy water or lubri-
cating oil on their connections.
6) Check the vacuum hose to make sure it is tightly
secured.
(A) Steering wheel
(B) Toe board
PM-00045(B)
(A)
= A
1
12
2
(A) Vacuum hose
(B) Check valve
(C) Engine side
(D) Brake booster side

PM-30
Steering System (Power Steering)
PERIODIC MAINTENANCE SERVICES
6) Tighten the adjusting screw to 3.9 N·m (0.40 kgf-
m, 2.9 ft-lb) and then loosen 20°.
7) Install the lock nut. While holding the adjusting
screw with wrench, tighten the lock nut using ST.
ST 926230000 SPANNER
Tightening torque (lock nut):
25 N·m (2.5 kgf-m, 18.1 ft-lb)
Hold the adjusting screw with wrench to prevent it
from turning while tightening the lock nut.
4. TIE-ROD
1) Check the tie-rod and tie-rod ends for bends,
scratches or other damage.
2) Check the connections of knuckle ball joints for
play, inspect for damage on dust seals, and check
free play of ball studs. If the castle nut is loose, re-
tighten it to the specified torque, then tighten it fur-
ther up to 60°until the cotter pin hole is aligned.
Tightening torque:
27 N·m (2.75 kgf-m, 19.9 ft-lb)
3) Check the lock nut on the tie-rod for tightness. If
it is loose, retighten it to the specified torque.
Tightening torque:
85 N·m (8.7 kgf-m, 63 ft-lb)
5. POWER STEERING FLUID LEVEL
NOTE:
•At power steering fluid temperature 20°C (68°F);
read the fluid level on the “COLD” side.
•At power steering fluid temperature 80°C
(176°F); read the fluid level on the “HOT” side.
1) Place the vehicle with engine “OFF” on a level
surface.
2) Check the fluid level using the scale on the out-
side of the reservoir tank. If the level is below MIN,
add fluid to bring it up to MAX.
NOTE:
If fluid level is at MAX level or above, drain fluid to
keep the level in the specified range of indicator by
using a syringe or the like.
Recommended fluid:
Refer to “RM” section.
ed Materials.>
Fluid capacity:
0.9 2 (1.0 US qt, 0.8 Imp qt)
6. POWER STEERING FLUID FOR LEAKS
Inspect the underside of oil pump and gearbox of
power steering system, hoses, pipes and their cou-
plings for fluid leaks.
If the fluid leaks are found, retighten their fitting
bolts (or nuts) and/or replace their parts.
NOTE:
•Wipe the leaked fluid off after correcting fluid
leaks.
•Also pay attention to clearances between hoses
(or pipes) and other parts when inspecting fluid
leaks.
(A) Apply liquid gasket to at least 1/3 of entire
perimeter
(A) Tie-rod end
(B) Knuckle arm
PM-00068
(A)
PM-00069
(A)
(B)
PS-00745
HOT MAXHOT MAINCOLD MAXCOLD MAIN

PM-31
Steering System (Power Steering)
PERIODIC MAINTENANCE SERVICES
7. HOSES OF OIL PUMP FOR DAMAGES
Check the pressure hose and return hose of oil
pump for crack, swell or damage. Replace the hose
with a new one if necessary.
NOTE:
Prevent hoses from turning and/or bending when
installing hoses.
8. POWER STEERING PIPES FOR DAMAG-
ES
Check the power steering pipes for corrosion and
damage.
Replace the pipes with new ones if necessary.
9. GEARBOX BOOTS
Inspect both sides of the gearbox boot as follows,
and correct the defects if necessary.
1) Positions (A) and (B) of the gearbox boot are fit-
ted correspondingly in grooves (A) and (B) of the
gearbox and rod (C).
2) Clips are fitted outside of positions (A) and (B) of
boot.
3) Boot does not have crack or hole.
NOTE:
Rotate (B) position of gearbox boot against the tor-
sion produced by the adjustment of toe-in etc. Ap-
ply grease to the groove (C).
10.FITTING BOLTS AND NUTS
Inspect the fitting bolts and nuts of oil pump and
bracket for looseness, and retighten them if neces-
sary.
Inspect and/or retighten them when engine is cold.
PM-00297
PM-00090
(C)
(B)
(A)

5AT-2
General Description
AUTOMATIC TRANSMISSION
1. General Description
A: SPECIFICATION
1. TORQUE CONVERTER CLUTCH
2. OIL PUMP
3. TRANSMISSION CONTROL ELEMENT
4. TRANSMISSION GEAR RATIO
5. PLANETARY GEAR AND PLATE
6. SELECTOR POSITION
7. HYDRAULIC CONTROL AND LUBRICA-
TION
Ty p eSymmetric, 3 element, single stage,
2 phase torque converter
Stall torque ratio 1.9
Nominal diameter 250 mm (9.84 in)
Stall speed (at sea
level)2,300 — 2,800 rpm
One–way clutch Sprague type one-way clutch
Ty p e I n t e r n a l g e a r f i x e d d i s p l a c e m e n t p u m p
Driving method Driven by engine
Number of teethInner rotor 9
Outer rotor 10
Ty p e5-forward, 1-reverse,
double-row planetary gears
Multi–plate clutch 3 sets
Multi–plate brake 4 sets
One-way clutch
(sprague type)3 sets
1st 3.841
2nd 2.352
3rd 1.529
4th 1.000
5th 0.839
Rev. 2.764
Number of front internal gear teeth 102
Number of front carrier teeth 24
Number of front sun gear teeth 54
Number of mid internal gear teeth 78
Number of mid carrier teeth 18
Number of mid sun gear teeth 42
Number of rear internal gear teeth 98
Number of rear carrier teeth 18
Number of rear sun gear teeth 62
Number of front brake drive plates 2
Number of input clutch drive plates 5
Number of high & low reverse clutch
drive plates4
Number of direct clutch drive plates 5
Number of reverse brake drive plates 5
Number of forward brake drive plates 4
Number of low coast brake drive plates 3
P (Park)
Tr a n s m i s s i o n i s i n n e u t r a l , o u t p u t m e m -
ber is immovable, engine start is possi-
ble
R (Reverse) Transmission in reverse for backing
N (Neutral)Tr a n s m i s s i o n i s i n n e u t r a l a n d e n g i n e
start is possible
D (Drive)Automatic gear change
1st ←→ 2nd ←→ 3rd ←→ 4th ←→ 5th
Manual mode (+)Manual gear change
1st→ 2nd→ 3rd→ 4th→ 5th
Manual mode (–)Manual gear change
1st← 2nd← 3rd← 4th← 5th
Control method Wire cable type
Ty p e
Electronic/hydraulic control [5 forward
gear changes made by electronic sig-
nals of vehicle speed and accelerator
(throttle) opening]
Fluid
Specified fluid: SUBARU ATF (Part No.
K0140Y0700)
Recommended fluid: IDEMITSU ATF
HP
CASTROL TRANSMAX J
PENNZOIL QUAKERSTATE • PEN-
NZOIL ATF-J
NOTE:
Using of recommended fluid is permit-
ted only on the area where the speci-
fied is not available.
Fluid capacity
2(US qt, Imp qt)9.6 — 10.0 (10.1 — 10.6, 8.4 — 8.8)
Lubrication system Forced feed lubrication with oil pump

5AT-18
General Description
AUTOMATIC TRANSMISSION
498897700 OIL PRESSURE
ADAPTER
Used for measuring transfer clutch pressure.
498545400 FILTER WRENCH Used for removing and installing the ATF filter.
498277200 STOPPER SET Used for removing and installing automatic
transmission assembly to engine.
41099AA010 ENGINE SUPPORT
BRACKET
Used for supporting engine.
41099AA020 ENGINE SUPPORT Used for supporting engine.
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST-498897700
ST-498545400
ST-498277200
ST41099AA010
ST41099AA020

5AT-26
Automatic Transmission Fluid
AUTOMATIC TRANSMISSION
2. Automatic Transmission Fluid
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.
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. Idle the engine for 1 or 2
minutes, and measure the ATF level.
4) Make sure that the ATF level is between upper
and lower marks of the HOT side.
5) If the ATF level is below the lower mark, add rec-
ommended ATF until the fluid level is between up-
per and lower marks.
CAUTION:
•Be careful not to exceed the upper level.
•When the transmission is cold, be careful not
to add ATF to the upper level on HOT side.
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.
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 or
the engine has been long idle running, the ATF
is hot. Be careful not to burn yourself.
3) Check the condition of ATF.
4) Tighten the ATF drain plug.
NOTE:
Use a new gasket.
Tightening torque:
20 N·m (2.0 kgf-m, 14.8 ft-lb)
5) Lower the vehicle.
6) Pour ATF from the oil charge pipe.
Specified fluid:
SUBARU ATF (Part No. K0140Y0700)
Recommended fluid:
IDEMITSU ATF HP
CASTROL TRANSMAX J
PENNZOIL QUAKERSTATE • PENNZOIL ATF-
J
NOTE:
Use of the recommended fluid is permitted only in
regions where the specified fluid is not available.
Capacity:
Fill with the same amount of ATF as drained.
Capacity when transmission is overhauled:
9.6 — 10.0 2 ( 1 0 . 1 — 1 0 . 6 U S q t , 8 . 4 — 8 . 8 I m p
qt)
7) Check the level and leaks of ATF.
(A) ATF level gauge
(B) Upper level
(C) Lower level
AT-00674
COLDLF
HOTLF(C)
(C)
(B)
(B)
(A)
(A) Oil pan
(B) ATF drain plug
(A)
AT-03126
(B)

5AT-29
Road Test
AUTOMATIC TRANSMISSION
4. Road Test
A: INSPECTION
1. GENERAL PRECAUTION
Road tests should be conducted to properly diag-
nose the condition of automatic transmission.
NOTE:
When performing the test, do not exceed posted
speed limit.
2. D RANGE SHIFT FUNCTION
Check shifting between 1st ←→ 2nd ←→ 3rd ←→
4th ←→ 5th while driving on normal city streets.
3. D RANGE SHIFT SHOCK
Check the shock level when shifting up during nor-
mal driving.
4. KICK–DOWN FUNCTION
Check kick–down for each gear. Check the shock
level during kick–down at the same time.
5. ENGINE BRAKE OPERATION
•Check the 4th gear engine brake when shifting
down from 5th to 4th range while driving in 5th gear
of manual mode [50 to 60 km/h (31 to 37 MPH)].
•Check the 3rd gear engine brake when shifting
down from 4th to 3rd range while driving in 4th gear
of manual mode [50 — 60 km/h (31 — 37 MPH)].
•Check the 2nd gear engine brake when shifting
down from 3rd to 2nd range while driving in 3rd
gear of manual mode [40 — 50 km/h (25 — 31
MPH)].
•Check the 1st gear engine brake when shifting
down from 2nd to 1st range while driving in 2nd
gear of manual mode [20 — 30 km/h (12 — 19
MPH)].
6. P RANGE OPERATION
Stop the vehicle on an uphill grade of 5% or more
and shift to the “P” range. Check that the vehicle
does not move when the parking brake is released.
7. NOISE AND VIBRATION
Check for noise and vibration while driving and dur-
ing shifting.
8. OIL LEAKAGE
After the driving test, inspect for oil leaks from the
transmission body.