Subaru Impreza 2003, Service Manual

Page: 2205 / 3610

DI-25
DIFFERENTIALS
DIFFERENTIAL GEAR OIL
2. Differential Gear Oil
A: INSPECTION
1) Remove the filler plug and then check the gear
oil. If it is contaminated or deteriorated, replace the
gear oil. <Ref. to DI-25, REPLACEMENT, Differen-
tial Gear Oil.>
2) Check the gear oil level is up to the bottom part
of filler bolt. If the level is low, refill up to the bottom
of filler bolt.
B: REPLACEMENT
1) Jack-up the vehicle and support it with sturdy
racks.
2) Remove the oil drain plug and filler plug, and
drain the gear oil.
CAUTION:
Be careful not to burn your hands, because
gear oil becomes extremely hot after running.
3) Tighten the oil drain plug.
NOTE:
• Apply fluid packing to the drain plug for T-type.
• Use a new aluminum gasket for VA-type.
Fluid packing:
THREE BOND 1105 (Part No. 004403010) or
equivalent
Tightening torque:
T-type
49 N·m (5.0 kgf-m, 36.2 ft-lb)
VA-type
34 N·m (3.5 kgf-m, 25.3 ft-lb)
4) Fill the differential carrier with gear oil to the up-
per plug level.
NOTE:
Carefully refill oil while watching the level. Excess
or insufficient oil must be avoided.
Oil capacity:
Except STi model:
0.8
2
(0.8 US qt, 0.7 Imp qt)
STi model:
0.9
2
— 1.1
2
(1.0 — 1.2 US qt, 0.8 — 1.0
Imp qt)
5) Install the filler plug.
NOTE:
• Apply fluid packing to the filler plug for T-type.
• Use a new aluminum gasket for VA-type.
Fluid packing:
THREE BOND 1105 (Part No. 004403010) or
equivalent
Tightening torque:
T-type
49 N·m (5.0 kgf-m, 36.2 ft-lb)
VA-type
34 N·m (3.5 kgf-m, 25.3 ft-lb)
(A) Filler plug
(B) Drain plug
(A) Filler plug
(B) Drain plug
DI-00047
(B)
(A)
DI-00048
(A) Filler plug
(B) Drain plug
DI-00049
(A)
(B)