maintenance SUBARU OUTBACK 2005 4.G Service Manual

11 - 2 4
Maintenance and service
Air cleaner element
Do not operate the engine with the air cleaner
element removed. The air cleaner element not
only filters intake air but also stops flames if the
engine backfires. If the air cleaner element is
not installed when the engine backfires, you
could be burned.
The air cleaner element functions as a filter screen.
When the element is perforated or removed, engine
wear will be excessive and engine life shortened.
The air cleaner element is a dry type. It is unnecessary
to clean or wash the element. ! Replacing the air cleaner element
Replace the air cleaner element according to the
maintenance schedule in the “Warranty and Mainte-
nance Booklet”. Under extremely dusty conditions, re-
place it more frequently. It is recommended that you
always use genuine SUBARU parts. !
Non-turbo models
0
A) Connector
B) Duct
C) Clamp
1. Unplug the connector that is attached to the top of
the air cleaner case.
2. Remove the hose that is located at the bottom of
the side surface of the air cleaner case.
3. Undo the screw and pull the air duct out of the air
cleaner case.
4. Unsnap the two clamps holding the air cleaner
case cover.
A
C
BUBB512CB

11 -2 5
Maintenance and service
– CONTINUED –
5. Open the air cleaner case cover and remove the air
cleaner element.
6. Clean the inside of the air cleaner cover and case
with a damp cloth and install a new air cleaner ele- ment. 7. To install the air cleaner case cover, insert the
three projections on the air cleaner case cover into the
slits on the air cleaner case and then snap the two
clamps on the air cleaner case cover.
UBB513BAUBB514BA

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Maintenance and service
!
Turbo models0
1. Use a screwdriver to undo the clips on the air intake
duct, then remove the air intake duct. 2. Unplug the connector that is attached to the top of
the air cleaner case.
UBB586BA
UBB587CA

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Maintenance and service
– CONTINUED –
3. Use a screwdriver to remove the duct that is con-
nected to the air cleaner case cover. 4. Unsnap the two clamps holding the air cleanercase cover.
At the same time, pull the hose from the clamp that
runs next to the case cover.
UBB204BAUBB205BA

11 - 2 8
Maintenance and service
5. Open the air cleaner case cover and remove the air
cleaner element.
6. Clean the inside of the air cleaner cover and case
with a damp cloth and install a new air cleaner ele- ment.
7. To install the air cleaner case cover, insert the
three projections on the air cleaner case cover into the
slits on the air cleaner case and then snap the two
clamps on the air cleaner case cover.
UBB513BAUBB514BA

11 -2 9
Maintenance and service
– CONTINUED –
Spark plugs
"When disconnecting the spark plug cables,
always grasp the spark plug cap, not the ca-
bles. " Make sure the cables are replaced in the cor-
rect order.
It may be difficult to replace the spark plugs. It is rec-
ommended that you have the spark plugs replaced by
your SUBARU dealer. The spark plugs should be replaced according to the
maintenance schedule in the “Warranty and Mainte-
nance Booklet”. !
Recommended spark plugs
2.5-liter non-turbo models:
FR5AP-11 (NGK)
2.5-liter turbo and 3.0-liter models:
ILFR6B (NGK)
HSB032BA

11 - 3 0
Maintenance and service
Drive belts
The alternator, power steering pump, and air condi-
tioner compressor depend on drive belts. Satisfactory
performance requires that belt tension be correct. !
2.5-liter models
A) Power steering pump pulley
B) Air conditioner compressor pulley
C) Crank pulley in (mm)
To check belt tension, place a straightedge (ruler)
across two adjacent pulleys and apply a force of 22 lbs
(98 N, 10 kg) midway between the pulleys by using a
spring scale. Belt deflection should be the amount
specified. ! 3.0-liter models
It is unnecessary to check belt tension periodically be-
cause your engine is equipped with an automatic belt
tension adjuster. However, replacement of the belt
should be done according to the maintenance sched-
ule in the “Warranty and Maintenance Booklet”. Con-
sult your SUBARU dealer for replacement.
If a belt is loose, cracked, or worn, contact your SUB-
ARU dealer.
B
C a
b
A
HSB033BC
Deflection
New belt Used belt
a 0.28 – 0.35 (7.0 – 9.0) 0.35 – 0.43 (9.0 – 11.0)
b 0.30 – 0.33 (7.5 – 8.5) 0.35 – 0.40 (9.0 – 10.0)

11 -3 1
Maintenance and service
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Manual transmission oil !Checking the oil level
Non-turbo models
A) Yellow handle Turbo models
1. Park the vehicle on a level surface and stop the en-
gine.
2. Pull out the dipstick, wipe it clean, and insert it
again.
A
UBB515EB
UBB516BA

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Maintenance and service
A) Upper level
B) Lower level
3. Pull out the dipstick again and check the oil level on
it. If it is below the lower level, add oil through the dip-
stick hole to bring the level up to the upper level. ! Recommended grade and viscosity
Each oil manufacturer has its own base oils and addi-
tives. Never use different brands together.
Oil grade:
API classification GL-5 SAE viscosity No. and applicable temperature
L
F
F
LA
B A
B
USB526BC
-30 -20 -10 0 10 20 30 40-20 0 60 20
80W
75W/90 80 100
40
85W 90
HSB036BA

11 -3 3
Maintenance and service
– CONTINUED –
Automatic transmission fluid !Checking the fluid level
The automatic transmission fluid expands largely as
its temperature rises; the fluid level differs according to
fluid temperature. Therefore, there are two different
scales for checking the level of hot fluid and cold fluid
on the dipstick.
Though the fluid level can be checked without warm-
ing up the fluid on the “COLD” range, we recommend
checking the fluid level when the fluid is at operating
temperature. ! Checking the fluid level when the fluid is hot
Check the fluid level monthly.
1. Drive the vehicle several miles to raise the temper-
ature of the transmission fluid up to normal operating
temperature; 158 to 176 °F (70 to 80 °C) is normal.
2. Park the vehicle on a level surface and set the park-
ing brake.
3. First shift the selector lever in each position. Then
shift it in the “P” position, and run the engine at idling
speed. 4 speed automatic transmission
A) Yellow handle
A
UBB515GB