Automatic Transmission Fluid Inspection - Subaru Legacy 2004 General Service Manual

PERIODIC MAINTENANCE SERVICES
14.Automatic Transmission Flu-
id
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. <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. Measure the ATF level
with engine idling for one or two minutes.
• 4AT model
(A)
(A) Level gauge
(B) ATF level range at "HOT" [70 — 80°C (158 —
176°F)]
(C) Upper level
(D) Lower level
(E) ATF level range at "COLD" [20 — 30°C (68 —
86°F)]
Automatic Transmission Fluid
(C)
(B)
(D)
(C)
(E)
(D)
PI-00189
PM-26
• 5AT model
(A)
(A) Level gauge
(B) ATF level range at "HOT" [70 — 80°C (158 —
176°F)]
(C) Upper level
(D) Lower level
(E) ATF level range at "COLD" [20 — 30°C (68 —
86°F)]
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.
• Addition of 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
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)
(C)
(B)
(D)
(C)
(E)
(D)
PI-00190