Power Steering Fluid - Subaru IMPREZA GD 2007 Series Manual

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POWER ASSISTED SYSTEM (POWER STEERING)

9. Power Steering Fluid

A: SPECIFICATION
Recommended power steering fluid
SUBARU ATF
or
ATF DEXRON III
B: INSPECTION
1) Check the power steering fluid for deterioration
or contamination. If the fluid is highly deteriorated
or contaminated, drain it and refill with new fluid.
2) Check the joints and units for fluid leakage. If
any oil leaks are found, repair or replace the appli-
cable part.
3) Inspect the fluid level of reservoir tank with vehi-
cle on level surface and engine stopped.
If the level is at "MIN." point or below, add fluid to
keep the level in the specified range of the indica-
tor. If fluid level is at "MAX." point or above, drain
fluid by using a syringe or the like.
(1) If the power steering fluid temperature is
20°C (68°F), read the fluid level on the "COLD"
side.
(2) If the power steering fluid temperature is
80°C (176°F), read the fluid level on the "HOT"
side.
Power Steering Fluid
C: REPLACEMENT
1) Lift up the vehicle.
2) Remove the jack-up plate.
3) Remove the pipe joint in the center of gearbox,
and connect the vinyl hose to the pipe and joint.
Drain fluid out while turning the steering wheel.
4) Set ST on the top of reservoir tank and fill it
about half way with the specified fluid.
ST 34199AE040 OIL CHARGE GUIDE
5) Maintaining the fluid level of Step 4), continue to
turn the steering wheel slowly from lock to lock until
the bubbles stop appearing on oil surface.
6) If the steering wheel is turned in a low fluid level
condition, air will be sucked into the pipe. If air has
entered, leave it for about half an hour and then re-
peat step 5) again.
7) Start the engine and let it idle.
8) Continue to turn the steering wheel slowly from
COLD MAX.
HOT MAX.
lock to lock again until the bubbles stop appearing
on oil surface, while keeping the fluid at the level in
Step 4).
HOT MIN.
Normally bubbles will stop appearing after turning
COLD MIN.
the steering wheel from lock to lock three times.
9) In case bubbles do not stop appearing in the
tank, leave it for about half an hour and then repeat
step 4) again.
10) Lower the vehicle, and then idle the engine.
PS-00159
11) Continue to turn the steering wheel from lock to
lock until the bubbles stop appearing and change of
the fluid level is within 3 mm (0.12 in).
12) In case the following happens, leave it about
half an hour and then do step 8) to 11) again.
13) Check for fluid leakage after turning steering
wheel from lock to lock with the engine running.
PS-66
(1) The fluid level changes 3 mm (0.12 in) or
more.
(2) Bubbles remain on the upper surface of the
fluid.
(3) Screeching noise is generated from oil
pump.
PS-00160