Content .. 21 22 23 24 ..

Subaru Legacy IV (2008 year). Manual - part 23

PM-32

Transmission Gear Oil

PERIODIC MAINTENANCE SERVICES

13.Transmission Gear Oil

A: REPLACEMENT

1. MANUAL TRANSMISSION

1) Drain the gear oil by removing drain plug.

CAUTION:
If the transmission gear oil is spilt over exhaust
pipe, wipe it off with cloth to avoid emitting
smoke or causing a fire.

NOTE:
• Before starting work, cool off the transmission
gear oil well.
• Drain the gear oil by removing drain plug using
TORX

bit T70.

• 5MT

• 6MT

2) Replace the gasket with new part, and then tight-
en the drain plug to specified torque.

Tightening torque:

5MT (Aluminum gasket)

44 N·m (4.5 kgf-m, 32.5 ft-lb)

5MT (Copper gasket)

70 N·m (7.1 kgf-m, 51.6 ft-lb)

6MT (Oil pan side):

50 N·m (5.1 kgf-m, 36.9 ft-lb)

6MT (Clutch housing side):

70 N·m (7.1 kgf-m, 51.6 ft-lb)

3) Fill the transmission gear oil through the oil level
gauge hole up to the upper point of level gauge.

Recommended gear oil:

Refer to RM section. <Ref. to RM-2, LUBRI-
CANTS, RECOMMENDED MATERIALS, Rec-
ommended Materials.>

NOTE:
Each oil manufacturer has its base oil and addi-
tives. Thus, do not mix two or more brands.

Gear oil capacity:

5MT model:

3.5

(3.7 US qt, 3.1 Imp qt)

6MT model:

4.1

(4.3 US qt, 3.6 Imp qt)

• 5MT (non-turbo model)

• 5MT (turbo model)

(A) Drain plug (Oil pan side)

(B) Drain plug (Clutch housing side)

MT-01548

PM-00523

(A)

(B)

(A) Oil level gauge

(B) Upper level

(A) Oil level gauge

(B) Upper level

PM-00030

(B)

(C)

(A)

(B)

(C)

(A)

PI-00564

PM-33

Transmission Gear Oil

PERIODIC MAINTENANCE SERVICES

• 6MT

(A) Oil level gauge

(B) Upper level

MT-00449

(A)

(B)

(C)

PM-34

Automatic Transmission Fluid

PERIODIC MAINTENANCE SERVICES

14.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 — 10 km (3 — 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)-17, READ CURRENT DATA, OPERA-
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. Idle the engine for 1 — 2
minutes, and measure the ATF level.
• 4AT model

• 5AT model

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:
• Be careful not to exceed the upper level limit.
• Adding ATF to the upper limit mark on “HOT”
side when the ATF temperature is less than
70°C (158°F) will overfill of ATF and cause 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.
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.

(A) ATF level gauge

(B) Upper level

(A) ATF level gauge

(B) Upper level

AT-01323

COLD

HOT

(C)

(B)

(A)

AT-04217

COLD

HOT

(C)

(B)

(A)

PM-35

Automatic Transmission Fluid

PERIODIC MAINTENANCE SERVICES

B: REPLACEMENT

1. AUTOMATIC TRANSMISSION FLUID

CAUTION:
If the ATF is spilt over exhaust pipe, wipe it off
with cloth to avoid emitting smoke or causing a
fire.
1) Drain the ATF by removing drain plug.

NOTE:
Before starting work, cool off the ATF well.
• 4AT model

• 5AT model

2) Replace the gasket with new part, and then tight-
en the drain plug to specified torque.

Tightening torque:

4AT model

25 N·m (2.5 kgf-m, 18.4 ft-lb)

5AT model

20 N·m (2.0 kgf-m, 14.8 ft-lb)

3) Pour in the ATF using the oil charge pipe.

Recommended ATF:

Refer to RM section. <Ref. to RM-4, FLUID,
RECOMMENDED MATERIALS, Recommend-
ed Materials.>

Capacity:

Fill with the same amount of ATF as drained.

4) Check the ATF level. <Ref. to PM-34, INSPEC-
TION, Automatic Transmission Fluid.>
• 4AT model

• 5AT model

2. ATF FILTER

CAUTION:
If the ATF is spilt over exhaust pipe, wipe it off
with cloth to avoid emitting smoke or causing a
fire.

NOTE:
Basically, the ATF filter is maintenance free, but
when it is rusted or physically damaged or leaking,
the ATF filter needs to be replaced.
For the replacement procedure of ATF filter, refer
to “ATF Filter”. <Ref. to 5AT-59, ATF Filter.>

(A) Front differential gear oil drain plug

(B) ATF drain plug

(A) ATF drain plug

(B)

(A)

PM-00524

PM-00168

(A)

(A) ATF level gauge

(B) Upper level

(A) ATF level gauge

(B) Upper level

AT-01323

COLD

HOT

(C)

(B)

(A)

AT-04217

COLD

HOT

(C)

(B)

(A)

Content .. 21 22 23 24 ..