service SUBARU OUTBACK 2006 User Guide

Starting and operating
7-3
– CONTINUED –function indicator lamp may turn on. If this
happens, return to your authorized
SUBARU Dealer for service. If it is deter-
mined that the condition is caused by the
type of fuel used, repairs may not be cov-
ered by your warranty.
T Gasoline for cleaner air
Your use of gasoline with detergent addi-
tives will help prevent deposits from form-
ing in your engine and fuel system. This
helps keep your engine in tune and your
emission control system working properly,
and is a way of doing your part for cleaner
air. If you continuously use a high quality
fuel with the proper detergent and other
additives, you should never need to add
any fuel system cleaning agents to your
fuel tank.
Many gasolines are now blended with ma-
terials called oxygenates. Use of these fu-
els can also help keep the air cleaner. Ox-
ygenated blend fuels, such as MTBE (Me- thyl Tertiary Butyl ether) or ethanol (ethyl
or grain alcohol) may be used in your ve-
hicle, but should contain no more than
15% MTBE or 10% ethanol for the proper
operation of your SUBARU.
In addition, some gasoline suppliers are
now producing reformulated gasolines,
which are designed to reduce vehicle
emissions. SUBARU approves the use of
reformulated gasoline.
If you are not sure what the fuel contains,
you should ask your service station oper-
ators if their gasolines contain detergents
and oxygenates and if they have been re-
formulated to reduce vehicle emissions.
As additional guidance, only use fuels
suited for your vehicle as explained in the
following.
y Fuel should be unleaded and have an
octane rating no lower than that specified
in this manual.
y Methanol (methyl or wood alcohol) is
sometimes mixed with unleaded gasoline.
Methanol can be used in your vehicle
ONLY if it does not exceed 5% of the fuel
mixture AND if it is accompanied by suffi-
cient quantities of the proper cosolvents
and corrosion inhibitors required to pre-
vent damage to the fuel system. Do not
use fuel containing methanol EXCEPT un- der these conditions.
y If undesirable driveability problems are
experienced and you suspect they may be
fuel related, try a di fferent brand of gaso-
line before seeking service at your
SUBARU dealer.
y Fuel system damage or driveability
problems which result from the use of im-
proper fuel are not covered under the
SUBARU Limited Warranty.
Do not let fuel spill on the exterior
surfaces of the vehicle. Fuels con-
taining alcohol may cause paint
damage, which is not covered under
the SUBARU Limited Warranty.

7-6 Starting and operating
State emission testing (U.S.
only)
At state inspection time, remember to
tell your inspection or service station
in advance not to place your SUBARU
AWD vehicle on a two-wheel dyna-
mometer. Otherwise, serious transmis-
sion damage will result.
Some states have started using dyna-
mometers in their state inspection pro-
grams in order to meet their obligation un- der federal law to implement stricter vehi-
cle emission standards to reduce air pollu-
tion from vehicles. A dynamometer is a
treadmill or roller-like testing device that
allows your vehicle’s wheels to turn while
the vehicle remains in one place. Depend-
ing on the severity of a state’s air pollution
problems, the states must adopt either a
“basic” or “enhanced” vehicle emission in-
spection test. Normally, a portion of the
basic emission test consists of an emis-
sion inspector inserting an analyzer probe
into the exhaust pipe of an idling vehicle
for a short period of time. States with more
severe air pollution problems are required
to adopt an enhanced vehicle emission
test. This test simu lates actual driving
conditions on a dynamometer and permits
more accurate measurement of tailpipe
emitted pollution than the basic emission
test.
The U.S. Environmental Protection Agen-
cy (EPA) and states using two-wheel dy-
namometers in their emission testing pro-
grams have EXEMPTED SUBARU AWD
vehicles from the portion of the testing
program that involves a two-wheel dyna-
mometer.
There are some states that use four-wheel
dynamometers in their testing programs.
When properly used, that equipment will
not damage an AWD SUBARU vehicle.y Always use a genuine SUBARU
fuel filler cap. If you use the wrong
cap, it may not fit or have proper
venting, and your fuel tank and
emission control system might be
damaged.
Testing of an All-Wheel Drive vehi-
cle must NEVER be performed on a
single two-wheel dynamometer. At-
tempting to do so will result in un-
controlled vehicle movement and
may cause an accident or injuries to
persons nearby.
Resultant vehicle damage due to im-
proper testing is not covered under
the SUBARU Limited Warranty and
is the responsibility of the state in-
spection program or its contractors
or licensees.

Starting and operating
7-7Under no circumstances should the rear
wheels be jacked off the ground, nor
should the driveshaft be disconnected for
state emission testing.
The EPA has issued regulations for in-
specting the On-Board Diagnostic (OBD)
system as part of the state emissions in-
spection. The OBD system is designed to
detect engine and transmission problems
that might cause vehicle emissions to ex-
ceed allowable limits. These inspections
apply to all 1996 model year and newer
passenger cars and li ght trucks. Over 30
states plus the Distr ict of Columbia have
implemented the OBD system inspection.
y The inspection of the OBD system con-
sists of a visual operational check of the
“ CHECK ENGINE ” warning light/malfunc-
tion indicator lamp (MIL) and an examina-
tion of the OBD system with an electronic
scan tool while the engine is running.
y A vehicle passes
the OBD system in-
spection if proper the “ CHECK ENGINE ”
warning light/MIL illumination is observed,
there is no stored diagnostic trouble
codes, and the OBD system readiness
monitors are complete.
y A vehicle fails
the OBD inspection if the
“ CHECK ENGINE ” warning light/MIL is
not properly operating or there is one or
more diagnostic trouble codes stored in vehicle’s computer with the “ CHECK EN-
GINE ” warning light/MIL illuminated.
y A state emission inspection may reject
(not pass or fail) a vehicle if the number of
OBD system readiness monitors “ Not
Ready ” is greater than one. Under this
condition, the vehicle operator should be
instructed to drive his/her vehicle for a few
days to set the monitors and return for an
emission re-inspection.
y Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service. Preparing to drive You should perform the following checks
and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and
lights are clean and unobstructed.
2. Check the appearance and condition of
the tires. Also check tires for proper infla-
tion.
3. Look under the vehicle for any sign of
leaks.
4. Check that the hood, trunk (Sedan)
and rear gate (Station wagon) are fully
closed.
5. Check the adjustment of the seat.
6. Check the adjustment of the inside and
outside mirrors.
7. Fasten your seatbelt. Check that your
passengers have fastened their seatbelts.
8. Check the operation of the warning and
indicator lights when the ignition switch is
turned to the “ON” position.
9. Check the gauges, indicator and warn-
ing lights after starting the engine.
NOTE Engine oil, engine coolant, brake fluid,
washer fluid and other fluid levels
should be checked daily, weekly or at
fuel stops.

8-4 Driving tips
reduce HC, CO and NOx in exhaust gas-
es, thus providing cleaner exhaust.
To avoid damage to the catalytic convert-
er:
y Use only unleaded gasoline. Even a
small amount of leaded gasoline will dam-
age the catalytic converter.
y Never start the engine by pushing or
pulling the vehicle.
y Avoid racing the engine.
y Never turn off the ignition switch while
the vehicle is moving.
y Keep your engine tuned-up. If you feel
the engine running rough (misfiring, back-
firing or incomplete combustion), have
your vehicle checked and repaired by an
authorized SUBARU dealer.
y Do not apply undercoating or rust pre-
vention treatment to the heat shield of cat-
alytic converter and the exhaust system. Periodic inspections To keep your vehicle in the best condition
at all times, always have the recommend-
ed maintenance services listed in the
maintenance schedule in the “Warranty
and Maintenance Booklet” performed at
the specified time or mileage intervals.
Driving in fo reign countries When planning to use your vehicle in an-
other country:
y Confirm the availability of the correct fu-
el. (Refer to the “Fuel requirements” sec-
tion in chapter 7.)
y Comply with all regulations and require-
ments of each country.

8-26 Driving tips
T Side mirrors
After hitching a trailer to your vehicle,
check that the standard side mirrors pro-
vide a good rearward field of view without
significant blind spots. If significant blind
spots occur with the vehicle’s standard
side mirrors, use towing mirrors that con-
form with Federal, state/province and/or
other applicable regulations.
T Trailer lights Connection of trailer lights to your vehi-
cle’s electrical system requires modifica-
tions to the vehicle’s lighting circuit to in-
crease its capacity and accommodate wir-
ing changes. To ensure the trailer lights
are connected properly, please consult
your SUBARU dealer. Check for proper
operation of the turn signals, the brake
lights and parking lights each time you
hitch up.
T Tires
Make sure that all the tires on your vehicle
are properly inflated.
The recommended cold tire pressure un-
der trailer towing conditions is shown in
chapter 12, “Specifications” and in “GAS
STATION REFERENCE” at the end of this
manual. Adjust the rear tire pressure to
the recommended pressure when the tires
are cold. Normal pressure should be maintained in the front tires.
Trailer tire condition, size, load rating and
proper inflation pressure should be in ac-
cordance with the trailer manufacturer’s
specifications.
In the event your v ehicle gets a flat tire
when towing a trailer, ask a commercial
road service to repair the flat tire.
If you carry a regular size spare tire in your
vehicle or trailer as a precaution against
getting a flat tire, be sure that the spare
tire is firmly secured.
„ Trailer towing tips
Direct splicing or other improper
connection of trailer lights may
damage your vehicle’s electrical
system and cause a malfunction of
your vehicle’s lighting system. 800018
Never tow a trailer when the tempo-
rary spare tire is used. The tempo-
rary spare tire is not designed to
sustain the towing load. Use of the
temporary spare tire when towing
can result in failure of the spare tire
and/or less stability of the vehicle. y Never exceed 45 mph (72 km/h)
when towing a trailer in hilly coun-
try on hot days.
y When towing a trailer, steering,
stability, stopping distance and
braking performance will be dif-
ferent from normal operation. For
safety’s sake, you should employ
extra caution when towing a trail-
er and you should never speed.
You should also keep the follow-
ing tips in mind:

9-8 In case of emergency
10.Remove the wheel nuts and the flat
tire.
11.Before putting the spare tire on, clean
the mounting surface of the wheel and
hub with a cloth.
12.Put on the spare tire. Replace the wheel nuts. Tighten them by hand.
13.Turn the jack handle counterclockwise
to lower the vehicle.
14.Use the wheel nut wrench to securely
tighten the wheel nut s to the specified
torque, following the tightening order in
the illustration.
The torque for tightening the nuts is 74 to
89 lbf·ft (100 to 120 N·m, 10 to 12 kgf·m).
This torque is equivalent to applying ap- proximately 88 to 110 lbs (40 to 50 kg) at
the top of the wheel nut wrench. Never
use your foot on the wheel nut wrench or
a pipe extension on the wrench because
you may exceed the specified torque.
Have the wheel nut torque checked at the
nearest automotive service facility.
15.Store the flat tire in the spare tire com-
partment.
Put the spacer and tighten the attaching
bolt firmly.
Also store the jack and jack handle in their
storage locations.900009
600162Do not use oil or grease on the
wheel studs or nuts when the spare
tire is installed. This could cause the
nuts to become loose and lead to an
accident.
 1 4
2
5
3
600192 600126

In case of emergency
9-13
– CONTINUED –Towing
If towing is necessary, it is best done by
your SUBARU dealer or a commercial
towing service. Observe the following pro-
cedures for safety. „ Towing and tie-down hooks The towing hooks should be used only in
an emergency (e.g., to free a stuck vehicle
from mud, sand or snow).
Front towing hook (OUTBACK models):
1. Take out the towing hook, screwdriver
and wheel nut wrench from the on board
tool bucket. 2. Wrap a flat-head screwdriver in a vinyl
tape or cloth, insert it into the gap between
the cover and the front bumper, and use it
to lever the cover open.
3. Pull the entire front fog light cover to-
ward you.Never tow AWD vehicles (both AT
and MT) with the front wheels raised
off the ground while the rear wheels
are on the ground, or with the rear
wheels raised off the ground while
the front wheels are on the ground.
This will cause the vehicle to spin
away due to the operation or deteri-
oration of the center differential.
900030y Use only the specified towing
hooks and tie-down hooks. Never
use suspension parts or other
parts of the body for towing or tie-
down purposes.
y Never use the tie-down hook clos-
est to the muffler under the vehi-
cle for towing purposes.
y To prevent deformation to the
bumper and the towing hook, do
not apply excessive lateral load to
the towing hooks. 900246
900247

11Maintenance and serviceMaintenance schedule ....................................... 11-3
Maintenance precautions .................................. 11-3 Before checking or servicing in the engine
compartment ........................................................ 11-4
When you do checking or servicing in the engine
compartment while the engine is running ......... 11-4
Engine hood ....................................................... 11-4
Engine compartment overview ......................... 11-6 2.5-liter non-turbo models ..................................... 11-6
2.5-liter turbo models ............................................. 11-7
3.0-liter models ....................................................... 11-8
Engine oil ............................................................ 11-9 Checking the oil level ............................................. 11-9
Changing the oil and oil filter ................................ 11-10
Recommended grade and viscosity ..................... 11-12
Recommended grade and viscosity under severe
driving conditions ................................................ 11-13
Cooling system .................................................. 11-13 Hose and connections ........................................... 11-14
Engine coolant ........................................................ 11-14
Air cleaner element ............................................ 11-17 Replacing the air cleaner element ......................... 11-17
Spark plugs ......................................................... 11-19
Recommended spark plugs ................................... 11-19
Drive belts ........................................................... 11-20
2.5-liter models ....................................................... 11-20
3.0-liter models ....................................................... 11-20
Manual transmission oil .................................... 11-20 Checking the oil level ............................................. 11-20
Recommended grade and viscosity ..................... 11-21
Automatic transmission flui d ............................ 11-22Checking the fluid level .......................................... 11-22
Recommended fluid ............................................... 11-23
Front differential gear oil (AT vehicles) ............ 11-23 Checking the oil level ............................................. 11-23
Recommended grade and viscosity ..................... 11-24
Rear differential gear oil .................................... 11-24 Checking the gear oil level .................................... 11-24
Recommended grade and viscosity ..................... 11-26
Power steering fluid ........................................... 11-27 Checking the fluid level .......................................... 11-27
Recommended fluid ............................................... 11-27
Brake fluid ........................................................... 11-28 Checking the fluid level .......................................... 11-28
Recommended brake fluid ..................................... 11-28
Clutch fluid (MT vehicles) .................................. 11-29 Checking the fluid level .......................................... 11-29
Recommended clutch fluid .................................... 11-29
Brake booster ..................................................... 11-30
Brake pedal ......................................................... 11-30 Checking the brake pedal free play ...................... 11-30
Checking the brake pedal reserve distance ......... 11-30
Clutch pedal (Man ual transmission
vehicles) ........................................................... 11-31
Checking the clutch function ................................ 11-31
Checking the clutch pedal free play ..................... 11-31

Maintenance and service
Replacement of brake pad and lining ............... 11-31Breaking-in of new brake pads and linings ......... 11-32
Parking brake stroke .......................................... 11-32
Tires and wheels ................................................ 11-33 Types of tires .......................................................... 11-33
Tire pressure monitoring system (TPMS)
(if equipped) .......................................................... 11-33
Tire inspection ........................................................ 11-34
Tire pressures and wear ........................................ 11-35
Wheel balance ........................................................ 11-37
Wear indicators ....................................................... 11-37
Tire rotation ............................................................. 11-37
Tire replacement ..................................................... 11-38
Wheel replacement ................................................. 11-38
Aluminum wheels ............................................... 11-39
Windshield washer fluid .................................... 11-39
Replacement of wiper blades ............................ 11-41 Windshield wiper blade assembly ........................ 11-41
Windshield wiper blade rubber ............................. 11-42
Rear window wiper blade assembly ..................... 11-42
Rear window wiper blade rubber .......................... 11-43
Battery ................................................................. 11-44
Fuses ................................................................... 11-45
Main fuse ............................................................. 11-47
Installation of accessories ................................ 11-47
Replacing bulbs .................................................. 11-48
Headlight ................................................................. 11-49
Parking light ............................................................ 11-50
Front turn signal light ............................................ 11-50
Front fog light (if equipped) ................................... 11-50 Rear combination lights ......................................... 11-51
Backup light (Station wagon) ................................ 11-52
License plate light .................................................. 11-53
Dome light ............................................................... 11-53
Map light .................................................................. 11-54
Door step light ........................................................ 11-54
Cargo area light (Station wa gon) .......................... 11-55
Trunk light (Sedan) ................................................. 11-55
High mount stop light (Sedan) .............................. 11-56

Maintenance and service
11 - 3
– CONTINUED – Maintenance and service
Maintenance schedule The scheduled maintenance items re-
quired to be serviced at regular intervals
are shown in the “Warranty and Mainte-
nance Booklet”.
For details of your maintenance schedule,
read the separate “Warranty and Mainte-
nance Booklet”.
Maintenance precautions When maintenance and service are re-
quired, it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service
by yourself, you should familiarize your-
self with the information provided in this
section on general maintenance and ser-
vice for your SUBARU.
Incorrect or incomplete service could
cause improper or unsafe vehicle opera-
tion. Any problems caused by improper
maintenance and service performed by
you are not eligible for warranty coverage.
y Testing of an All-Wheel Drive ve-
hicle must NEVER be performed
on a single two-wheel dynamome-
ter or similar apparatus. Attempt-
ing to do so will result in transmis-
sion damage and in uncontrolled
vehicle movement and may cause
an accident or injuries to persons
nearby.
y Always select a safe area when
performing maintenance on your
vehicle. y Always be very careful to avoid in-
jury when working on the vehicle.
Remember that some of the mate-
rials in the vehicle may be hazard-
ous if improperly used or handled,
for example, battery acid.
y Your vehicle should only be ser-
viced by persons fully competent
to do so. Serious personal injury
may result to persons not experi-
enced in servicing vehicles.
y Always use the proper tools and
make certain that they are well
maintained.
y Never get under the vehicle sup-
ported only by a jack. Always use
a safety stands to support the ve-
hicle.
y Never keep the engine running in
a poorly ventilated area, such as a
garage or other closed areas.
y Do not smoke or allow open
flames around the fuel or battery.
This will cause a fire.
y Because the fuel system is under
pressure, replacement of the fuel
filter should be performed only by
your SUBARU dealer.