Subaru 2002 IMPREZA Service Manual page 1581

18.ATF Filter
A: REMOVAL
NOTE:
The ATF filter is maintenance free.
1) Lift-up the vehicle.
2) Using the ST, remove the ATF filter.
ST 498545400 OIL FILTER WRENCH
(A) ATF filter
3) Use a new ATF filter and apply a thin coat of ATF
to the oil seal.
B: INSTALLATION
1) Install the ATF filter. Turn it by hand, being care-
ful not to damage the oil seal.
2) Using the ST, tighten the ATF filter to transmis-
sion case.
Calculate the ATF filter torque specifications using
the following formula.
T2 = L2/(L1 + L2) × T1
T1: 14 N·m (1.4 kgf-m, 10.1 ft-lb)
[Required torque setting]
T2: Tightening torque
L1: ST length 0.078 m (3.07 in)
L2: Torque wrench length
Example:
Torque wrench length
mm (in)
100 (3.94)
150 (5.91)
200 (7.87)
NOTE:
Align the ST with torque wrench while tightening
ATF filter.
ST 498545400 OIL FILTER WRENCH
3) Add ATF.
4) Inspect the level of ATF. <Ref. to AT-9, Automat-
ic Transmission Fluid.>
ATF FILTER
B3M1665B
Tightening torque
N·m (kgf-m, ft-lb)
7.7 (0.79, 5.7)
9.0 (0.92, 6.7)
10 (1.0, 7.2)
AT-45
AUTOMATIC TRANSMISSION