engine SUBARU OUTBACK 2007 4.G Service Manual

&Air conditioner compressor
shut-off when engine is
heavily loaded
To improve acceleration and gas mileage,
the air conditioner compressor is designed
to temporarily shut off during air condi-
tioner operation whenever the accelerator
is fully depressed such as during rapid
acceleration or when driving on a steepupgrade. & Refrigerant for your climate
control system
Your air conditioner uses ozone friendly
refrigerant HFC134a. Therefore, the meth-
od of adding, changing or checking the
refrigerant is different from the method for
CFC12 (freon). Consult your SUBARU
dealer for service. Repairs needed as a
result of using the wrong refrigerant are
not covered under warranty. Air filtration system (if equipped)
If your vehicle
’s air conditioning system is
equipped with an air filtration system,
replace the filter element according to
the replacement schedule shown in the
following. This schedule should be fol-
lowed to maintain the filter ’s dust collec-
tion ability. Under extremely dusty
conditions, the filter should be replaced
more frequently. Have your filter checked
or replaced by your SUBARU dealer. For
replacement, we recommend the use of a
genuine SUBARU air filter kit.
Replacement schedule: Every 12 months or 9,300 miles (15,000
km) whichever comes first
CAUTION
Contact your SUBARU dealer if the
following occurs, even if it is not yet
time to change the filter: – Reduction of the air flow through
the vents.
– Windshield gets easily fogged or
misted. NOTE
The filter can influence the air condi-
tioning, heating and defroster perfor-
mance if not properly maintained.
Climate control
4-13

6-4Interior equipment
CAUTION
Do not pull out the extension plate
with the sun visor positioned over
the windshield. The extension plate
would obstruct your view of the
rearview mirror. &
Vanity mirror with light
CAUTION
Keep the vanity mirror cover closed
while the car is being driven to avoiddazzle.
To use the vanity mirror, swing down the
sun visor and open the vanity mirror cover.
The light beside the vanity mirror comes
on when the ignition switch is either in the“ ACC ”or “ON ”position and the mirror
cover is opened.
NOTE
Use of the vanity mirror light for a long
period of time while the engine is not
running can cause battery discharge. Storage compartment
CAUTION
. Always keep the storage com-
partment closed while driving to
reduce the risk of injury in the
event of sudden stops or anaccident.
. Do not store spray cans, contain-
ers with flammable or corrosive
liquids or any other dangerous
items in the storage compart-ment.

Outlet in cargo area
Accessory power outlets are provided
beside the front ashtray, in the center
console and in the cargo area. Electrical
power (12V DC) from the battery is
available at any of the outlets when the
ignition switch is in either the “ACC ”or
“ ON ”position.
You can use an in-car electrical appliance
by connecting it to an outlet.
The maximum power rating of an appli-
ance that can be connected varies among
outlets as shown in the following. Do not
use an appliance which exceeds the
indicated wattage for each outlet.
Outlet beside front pocket: 80W or less
Outlets in center console and cargo area:
120W or less
When using appliances connected to two or more outlets simultaneously, the total
power consumed by them must not
exceed 120W.
CAUTION
. Do not attempt to use a cigarette
lighter in the accessory power outlet.
. Do not place any foreign objects,
especially metal ones such as
coins or aluminum foil, into the
accessory power outlet. That
could cause a short circuit. Al-
ways put the cap on the acces-
sory power outlet when it is not
in use.
. Use only electrical appliances
which are designed for 12V DC.
The maximum power rating of an
appliance that can be connected
varies among outlets as shown in
the following. Do not use an
appliance which exceeds the in-
dicated wattage for each outlet.
Outlet beside front pocket: 80W
or less
Outlets in center console and
cargo area: 120W or less
When using appliances con-
nected to two or more outlets simultaneously, the total power
consumed by them must not
exceed 120W. Overloading the
accessory power outlet can
cause a short circuit. Do not use
double adapters or more than
one electrical appliance.
. If the plug on your electric appli-
ance is either too loose or too
tight for the accessory power
outlet, this can result in a poor
contact or cause the plug to get
stuck. Only use plugs that fit
properly.
. Use of an electric appliance in the
accessory power outlet for a long
period of time while the engine is
not running can cause batterydischarge.
. Before driving your vehicle, make
sure that the plug and the cord
on your electrical appliance will
not interfere with your shifting
gears and operating the accel-
erator and brake pedals. If they
do, do not use the electrical
appliance while driving. Interior equipment
6-9
– CONTINUED –

Fuel...................................................................... 7-3
Fuel requirements ............................................... 7-3
Fuel filler lid and cap ........................................... 7-5
State emission testing (U.S. only) ...................... 7-7
Preparing to drive ............................................... 7-9
Starting the engine .............................................. 7-9
Manual transmission vehicle ................................ 7-9
Automatic transmission vehicle .......................... 7-10
Stopping the engine ........................................... 7-11
Remote engine start system (dealer option) ................................................. 7-11
Starting your vehicle .......................................... 7-12
Remote start safety features ............................... 7-12
Entering the vehicle while it is running via remote start ................................................................. 7-12
Entering the vehicle following remote engine start shutdown ......................................................... 7-12
Pre-heating or pre-cooling the interior of the vehicle ............................................................. 7-13
Service mode ..................................................... 7-13
Remote transmitter programming and programmable feature option ............................ 7-13
System maintenance .......................................... 7-14
Manual transmission –5 speeds ...................... 7-15
Shifting speeds .................................................. 7-15
Driving tips ........................................................ 7-16
Manual transmission –6 speeds (2.5GT
spec.B) ............................................................. 7-17
Selecting reverse gear ........................................ 7-17
Shifting speeds .................................................. 7-17
Driving tips ........................................................ 7-18 Automatic transmission
–4-speed ................... 7-18
Selector lever .................................................... 7-19
Selector lever reverse inhibiting function ............ 7-20
Selection of manual mode .................................. 7-21
Maximum speeds ............................................... 7-22
Driving tips ........................................................ 7-23
SPORT mode ..................................................... 7-23
Shift lock release ............................................... 7-23
Automatic transmission –5-speed ................... 7-24
Selector lever .................................................... 7-25
Selector lever reverse inhibiting function ............ 7-26
Selection of manual mode .................................. 7-27
Maximum speeds ............................................... 7-29
Driving tips ........................................................ 7-29
SPORT mode (Non-turbo models) ....................... 7-30
Shift lock release ............................................... 7-30
SI-DRIVE (Turbo models) .................................. 7-31
Intelligent (I) mode ............................................. 7-31
Sport (S) mode .................................................. 7-32
Sport Sharp (S#) mode. ...................................... 7-32
SI-DRIVE selector .............................................. 7-32
Rear viscous limited slip differential (LSD) (if equipped) .................................................... 7-33
Power steering ................................................... 7-33
Braking ............................................................... 7-34
Braking tips ....................................................... 7-34
Brake system .................................................... 7-34
Disc brake pad wear warning indicators ............. 7-34
ABS (Anti-lock Brake System) .......................... 7-35
ABS system self-check ...................................... 7-35
Starting and operating
7

Fuel
CAUTION
Use of a fuel which is low in quality
or use of an inappropriate fuel
additive may cause engine damage.
& Fuel requirements
! 2.5-liter non-turbo models
The 2.5-liter non-turbo engine is designed
to operate using unleaded gasoline with
an octane rating of 87 AKI or higher. ! 2.5-liter turbo models
The 2.5-liter turbo engine is designed to
operate using premium unleaded gasoline
with an octane rating of 91 AKI or higher. If
premium unleaded gasoline is not avail-
able, regular unleaded gasoline with an
octane rating of 87 AKI or higher may be
temporarily used. For optimum engine
performance and driveability, it is required
that you use premium grade unleadedgasoline. NOTE
Be sure to use premium unleaded
gasoline of 91 AKI or higher for a 2.5-
liter turbo engine model. If other gaso-
line (lower than 91 AKI) is used, knock-
ing, reduced output and poor
accelerator response will result. !
3.0-liter models
The 3.0-liter engine is designed to operate
using unleaded gasoline with an octane
rating of 91 AKI or higher. Regular
unleaded gasoline with an octane rating
of 87 AKI or higher may be used. However
for optimum engine performance and
driveability, it is recommended that you
use 91 AKI or higher grade unleaded
gasoline. You may experience reduced
output, poor accelerator response, and
reduced fuel economy when using gaso-
line with an octane rating lower than 91
AKI, depending on your driving habits and
conditions. If you experience any of these
conditions while using a lower octane
rated fuel, you may want to return to using
91 AKI octane rated fuel as soon as
possible. Additionally, if your vehicle
knocks heavily or persistently, or if you
are driving with heavy loads such as when
towing a trailer, the use of 91 AKI or higher
grade unleaded gasoline is required. !
Fuel octane rating
This octane rating is the average of the
Research Octane and Motor Octane
numbers and is commonly referred to as
the Anti Knock Index (AKI).
Using a gasoline with a lower octane
rating can cause persistent and heavy
knocking, which can damage the engine.
Do not be concerned if your vehicle
sometimes knocks lightly when you drive
up a hill or when you accelerate. See your
dealer or a qualified service technician if
you use a fuel with the specified octane
rating and your vehicle knocks heavily or
persistently. ! Unleaded gasoline
The neck of the fuel filler pipe is designed
to accept only an unleaded gasoline filler
nozzle. Under no circumstances should
leaded gasoline be used because it will
damage the emission control system and
may impair driveability and fuel economy. ! California fuel
If your vehicle was certified to California
Emission Standards as indicated on the
underhood tune-up label, it is designed to
optimize engine and emission control
system performance with gasoline that
meets the clean burning low-sulfur Cali-
fornia gasoline specifications. If you live in Starting and operating
7-3
– CONTINUED –

7-4Starting and operating
any other state than California, your
vehicle will operate on gasoline meeting
Federal specifications. Gasoline sold out-
side California is permitted to have higher
sulfur levels, which may affect the perfor-
mance of your vehicle ’s catalytic converter
and may produce a sulfur exhaust odor or
smell. SUBARU recommends that you try
a different brand of unleaded gasoline
having lower sulfur to determine if the
problem is fuel related before returning
your vehicle to an authorized dealer for
service. The CHECK ENGINE warning
light/malfunction indicator lamp may also
turn on. If this occurs, return to your
authorized SUBARU dealer for diagnosis.
If it is determined that the condition is
caused by the type of fuel used, repairs
may not be covered by your warranty. ! MMT
Some gasoline contains an octane-en-
hancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl). If
you use such fuels, your emission control
system performance may deteriorate and
the CHECK ENGINE warning light/mal-
function indicator lamp may turn on. If this
happens, return to your authorized
SUBARU Dealer for service. If it is
determined that the condition is caused
by the type of fuel used, repairs may not
be covered by your warranty. !
Gasoline for cleaner air
CAUTION
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.
Your use of gasoline with detergent
additives will help prevent deposits from
forming 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
materials called oxygenates. Use of these
fuels can also help keep the air cleaner.
Oxygenated blend fuels, such as MTBE
(Methyl Tertiary Butyl ether) or ethanol
(ethyl or grain alcohol) may be used in
your vehicle, 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
operators if their gasolines contain deter-
gents and oxygenates and if they have
been reformulated to reduce vehicle emis-sions.
As additional guidance, only use fuels
suited for your vehicle as explained in thefollowing. .
Fuel should be unleaded and have an
octane rating no lower than that specified
in this manual. . 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 ANDif it is accompanied by
sufficient quantities of the proper cosol-
vents and corrosion inhibitors required to
prevent damage to the fuel system. Do not
use fuel containing methanol EXCEPT
under these conditions. . If undesirable driveability problems are
experienced and you suspect they may be
fuel related, try a different brand of gaso-
line before seeking service at your
SUBARU dealer. . Fuel system damage or driveability

7-6Starting and operating
2. Open the fuel filler lid.
1) Open
2) Close
3. Remove the fuel filler cap by turning it
slowly counterclockwise.
WARNING
. Gasoline vapor is highly flam-
mable. Before refueling, always
first stop the engine and make
sure that there are no lighted
cigarettes, open flames or elec-
trical sparks in the adjacent area. .
When opening the cap, do not
remove the cap quickly. Fuel may
be under pressure and spray out
of the fuel filler neck especially in
hot weather, which may cause
injury.
4. Stop filling the tank after the fuel filler
pump automatically clicks off. Do not add
any more fuel.
5. Put the cap back on, turn it clockwise
until you hear a clicking noise. Be certain
not to catch the tether under the cap whiletightening.
6. Close the fuel filler lid completely. If
you spill any fuel on the painted surface,
rinse it off immediately. Otherwise, the
painted surface could be damaged.

NOTE
.You will see the “”sign in the fuel
gauge. This indicates that the fuel filler
door (lid) is located on the right side of
the vehicle.. If the fuel filler cap is not tightened
until it clicks or if the tether is caught
under the cap, the CHECK ENGINE
warning light/malfunction indicator
lamp may come on. Refer to the“ Warning and indicator lights ”section
located in chapter 3.
(Turbo model only) Promptly put fuel in
the tank whenever the low fuel warning
light comes on. Engine misfires as a
result of an empty tank could cause
damage to the engine.
CAUTION
. Never add any cleaning agents to
the fuel tank. The addition of a
cleaning agent may cause da-
mage to the fuel system.
. Make sure that the cap is tigh-
tened until it clicks to prevent
fuel spillage in the event of anaccident.
. Do not let fuel spill on the exterior
surfaces of the vehicle. Fuels
may cause paint damage, which
is not covered under the
SUBARU Limited Warranty.
. 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 sys-
tem might be damaged. State emission testing (U.S. only)
WARNING
Testing of an All-Wheel Drive vehicle
must NEVER be performed on a
single two-wheel dynamometer. At-
tempting to do so will result in
uncontrolled vehicle movement and
may cause an accident or injuries to
persons nearby.
CAUTION
Resultant vehicle damage due to
improper testing is not covered
under the SUBARU Limited War-
ranty and is the responsibility of
the state inspection program or its
contractors or licensees.
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 dynam-
ometer. Otherwise, serious transmis-
sion damage will result.
Some states have started using dynam-
ometers in their state inspection programs Starting and operating
7-7
– CONTINUED –

7-8Starting and operating
in order to meet their obligation under
federal law to implement stricter vehicle
emission standards to reduce air pollution
from vehicles. A dynamometer is a tread-
mill or roller-like testing device that allows
your vehicle ’s wheels to turn while the
vehicle remains in one place. Depending
on the severity of a state ’s air pollution
problems, the states must adopt either a“ basic ”or “enhanced ”vehicle emission
inspection 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 simulates actual driving
conditions on a dynamometer and permits
more accurate measurement of tailpipe
emitted pollution than the basic emissiontest.
The U.S. Environmental Protection
Agency (EPA) and states using two-wheel
dynamometers in their emission testing
programs have EXEMPTEDSUBARU
AWD vehicles from the portion of the
testing program that involves a two-wheel
dynamometer.
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.
Under 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
inspecting the On-Board Diagnostic
(OBD) system as part of the state emis-
sions inspection. The OBD system is
designed to detect engine and transmis-
sion problems that might cause vehicle
emissions to exceed allowable limits.
These inspections apply to all 1996 model
year and newer passenger cars and light
trucks. Over 30 states plus the District of
Columbia have implemented the OBD
system inspection. .
The inspection of the OBD system
consists of a visual operational check of the “CHECK ENGINE ”warning light/mal-
function indicator lamp (MIL) and an
examination of the OBD system with an
electronic scan tool while the engine isrunning. . Avehicle
passes the OBD system
inspection if proper the “CHECK ENGINE ”
warning light/MIL illumination is observed,
there is nostored diagnostic trouble
codes, and the OBD system readiness
monitors are complete. . 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 invehicle
’s computer with the “CHECK
ENGINE ”warning light/MIL illuminated.
. A state emission inspection may reject
(not pass or fail) a vehicle if the number of
OBD system readi ness 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. . 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 properinflation.
3. Look under the vehicle for any sign of leaks.
4. Check that the hood, trunk (Sedan)
and rear gate (Station wagon) are fullyclosed.
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.
Starting the engine
CAUTION
Do not operate the starter motor
continuously for more than ten
seconds. If the engine fails to start
after operating the starter for five to
ten seconds, wait for ten seconds or
more before trying again.
& Manual transmission vehicle
1. Apply the parking brake.
2. Turn off unnecessary lights and ac- cessories.
3. Press the clutch pedal to the floor and
shift the shift lever into neutral.
Hold the clutch pedal to the floor while
starting the engine. The starter motor will
only operate when the clutch pedal is
pressed fully to the floor.
4. Turn the ignition switch to the “ON ”
position and check the operation of the
warning and indicator lights. Refer to the“ Warning and indicator lights ”section
(chapter 3).
5. Turn the ignition switch to the “START ”
position without depressing the accelera-
tor pedal. Release the key immediately
after the engine has started. Starting and operating
7-9
– CONTINUED –