Subaru Impreza 2004 Service Manual page 32

2. Automatic Transmission Flu-
id
A: INSPECTION
NOTE:
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)-21, 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 the engine idling for one or two minutes.
(B)
(C)
(A) ATF level gauge
(B) Upper level
(C) Lower level
4) Make sure that ATF level is between the upper
level and lower level at HOT side.
If the level is below the lower level, check for leaks
in the transmission. If there are leaks, it is neces-
sary to repair or replace gasket, oil seals, plugs or
other parts.
5) If the ATF level is below the center between up-
per and lower marks, fill the recommended ATF un-
til the ATF level is found above the center between
upper and lower marks.
CAUTION:
• Use care not to exceed the upper level.
• Filling of ATF to the upper level when the
transmission is cold will result in overfilling of
ATF, causing a transmission failure.
6) Check ATF level after raising ATF temperature
to 70 — 80°C (158 — 176°F) by during the distance
of 5 to 10 km (3 to 6 miles) or by idling the engine
again.
Automatic Transmission Fluid
(A)
(B)
(C)
AT-00674
4AT-31
AUTOMATIC TRANSMISSION
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) Check the ATF condition. <Ref. to 4AT-32,
CONDITION CHECK, Automatic Transmission
Fluid.>
4) Replace with a new gasket, and then tighten the
ATF drain plug.
Tightening torque:
25 N·m (2.5 kgf-m, 18.1 ft-lb)
(A) Oil pan
(B) ATF drain plug
5) Lower the vehicle.
6) Pour ATF into the oil charge pipe.
Recommended fluid:
Dexron III type automatic transmission fluid
Capacity:
Fill the same amount of ATF drained from
drain plug hole.
Capacity when transmission is overhauled:
1.6 L FWD model:
8.0 — 8.3 2 (8.5 — 8.8 US qt, 7.0 — 7.3 Imp
qt)
1.6 L AWD and 2.0 L Non-turbo model:
8.4 — 8.7 2 (8.9 — 9.2 US qt, 7.4 — 7.7 Imp
qt)
2.5 L and 2.0 L Turbo model:
9.3 — 9.6 2 (9.8 — 10.1 US qt, 8.2 — 8.4 Imp
qt)
7) Check the level and leaks of ATF.
<Ref. to 4AT-31, INSPECTION, Automatic Trans-
mission Fluid.>
(B)
(A)
AT-02389