2011 SUBARU IMPREZA WRX STI service schedule

Black plate (4,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
2Chapter 4: Climate control
This chapter informs you how to operate
the climate control.
Chapter 5: Audio
This chapter informs you how to operate
your audio system.
Chapter 6: Interior equipment
This chapter informs you how to operate
interior equipment.
Chapter 7: Starting and operating
This chapter informs you how to start and
operate your SUBARU.
Chapter 8: Driving tips
This chapter informs you how to drive your
SUBARU in various conditions and ex-
plains some safety tips on driving.
Chapter 9: In case of emergency
This chapter informs you what to do if you
have a problem while driving, such as a
flat tire or engine overheating.
Chapter 10: Appearance care
This chapter informs you how to keep your
SUBARU looking good.
Chapter 11: Maintenance and service
This chapter informs you when you need
to take your SUBARU to the dealer for
scheduled maintenance and informs you
how to keep your SUBARU running
properly. Chapter 12: Specifications
This chapter informs you about dimen-
sions and capacities of your SUBARU.
Chapter 13: Consumer information and
Reporting safety defects
This chapter informs you about Uniform
tire quality grading standards and Report-
ing safety defects.
Chapter 14: Index
This is an alphabetical listing of all that’
sin
this manual. You can use it to quickly find
something you want to read.
& Safety warningsYou will find a number of WARNINGs,
CAUTIONs and NOTEs in this manual.
These safety warnings alert you to poten-
tial hazards that could result in injury to
you or others.
Please read these safety warnings as well
as all other portions of this manual care-
fully in order to gain a better understand-
ing of how to use your SUBARU vehicle
safely.
WARNING
A WARNING indicates a situation in
which serious injury or death could
result if the warning is ignored.
CAUTION
A CAUTION indicates a situation in
which injury or damage to your
vehicle, or both, could result if the
caution is ignored.NOTEA NOTE gives information or sugges-
tions how to make better use of your
vehicle.&Safety symbolYou will find a circle with a slash through it
in this manual. This symbol means “Do
not ”,“Do not do this ”,or“Do not let this
happen ”, depending upon the context.

Black plate (187,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
system.& Air conditioner compressor
shut-off when engine is
heavily loadedTo 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 steep
upgrade.&Refrigerant for your climate
control systemYour 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 systemReplace the filter element according to the
replacement schedule as follows. This
schedule should be followed to maintain
the filter ’s dust collection ability. Under
extremely dusty conditions, the filter
should be replaced more frequently. It is
recommended that you have your filter
checked or replaced by your SUBARU
dealer. For replacement, use only a
genuine SUBARU air filter kit.Replacement schedule:
Every 12 months or 7,500 miles (12,000
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 airflow through
the vents.
. Windshield gets easily fogged or
misted.NOTEThe filter can influence the air condi-
tioning, heating and defroster perfor- mance if not properly maintained.
&
Replacing an air filter1. Remove the glove box.
(1) Open the glove box.
(2) Remove the damper shaft from the
glove box.
Climate control
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4

Black plate (320,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
8-4
Driving tipsoperates at very high tempera-
tures.
. Keep everyone and flammable
materials away from the exhaust
pipe while the engine is running.
The exhaust gas is very hot.
Periodic inspectionsTo keep your vehicle in the best condition
at all times, always have the recom-
mended maintenance services listed in
the maintenance schedule in the “War-
ranty and Maintenance Booklet ”per-
formed at the specified time or mileage
intervals.
Driving in foreign countriesWhen planning to use your vehicle in
another country:
. Confirm the availability of the correct
fuel. Refer to “Fuel requirements ”F 7-3.
. Comply with all regulations and re-
quirements of each country.

Black plate (21,1)
北米Model "A1110BE-C" EDITED: 2010/ 11/ 17
Maintenance schedule ....................................... 11-3
Maintenance precautions ................................... 11-3
Before checking or servicing in the engine
compartment .................................................... 11-4
When checking or servicing in the engine compartment .................................................... 11-4
When checking or servicing in the engine compartment while the engine is running .......... 11-5
Engine hood....................................................... 11-5
Engine compartment overview .......................... 11-7
Non-turbo models.............................................. 11-7
Turbo models except STI .................................... 11-8
STI..................................................................... 11-9
Engine oil .......................................................... 11-10
Checking the oil level ....................................... 11-10
Changing the oil and oil filter ............................ 11-11
Recommended grade and viscosity .................. 11-13
Synthetic oil ..................................................... 11-13
Cooling system ................................................ 11-13
Cooling fan, 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 .............................. 11-20
Drive belts........................................................ 11-20
Manual transmission oil .................................. 11-21
Checking the oil level....................................... 11-21
Recommended grade and viscosity .................. 11-21
Automatic transmission fluid.......................... 11-22
Checking the fluid level.................................... 11-22
Recommended fluid ......................................... 11-23
Front differential gear oil (AT models) ........... 11-23
Checking the oil level...................................... 11-23
Recommended grade and viscosity .................. 11-24
Rear differential gear oil.................................. 11-24
Recommended grade and viscosity .................. 11-24
Power steering fluid........................................ 11-24
Checking the fluid level .................................... 11-24
Recommended fluid ......................................... 11-25
Brake fluid........................................................ 11-25
Checking the fluid level .................................... 11-25
Recommended brake fluid ............................... 11-26
Clutch fluid (MT models)................................. 11-26
Checking the fluid level.................................... 11-26
Recommended clutch fluid ............................... 11-27
Brake booster.................................................. 11-27
Brake pedal ...................................................... 11-28
Checking the brake pedal free play .................. 11-28
Checking the brake pedal reserve distance....... 11-28
Clutch pedal (MT models) ............................... 11-29
Checking the clutch function ............................ 11-29
Checking the clutch pedal free play .................. 11-29
Hill start assist system (MT models –if
equipped) ...................................................... 11-29
Replacement of brake pad and lining ............ 11-30
Breaking-in of new brake pads and linings ....... 11-30
Parking brake stroke....................................... 11-31
Maintenance and service
11

Black plate (363,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
Maintenance scheduleThe scheduled maintenance items re-
quired to be serviced at regular intervals
are shown in the “Warranty and Main-
tenance Booklet ”.
For details of your maintenance schedule,
read the separate “Warranty and Main-
tenance Booklet ”.
Maintenance precautionsWhen 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 yourself
with the information provided in this
section on general maintenance and
service 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.
WARNING
.Testing of an All-Wheel Drive
model must NEVER be per-
formed on a single two-wheel
dynamometer or similar appara-
tus. Attempting to do so will
result in transmission damage
and in uncontrolled vehicle
movement and may cause an
accident or injuries to persons
nearby.
. Always select a safe area when
performing maintenance on your
vehicle. .
Always be very careful to avoid
injury when working on the vehi-
cle. Remember that some of the
materials in the vehicle may be
hazardous if improperly used or
handled, for example, battery
acid.
. 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.
. Always use the proper tools and
make certain that they are well
maintained.
. Never get under the vehicle sup-
ported only by a jack. Always use
safety stands to support the
vehicle.
. Never keep the engine running in
a poorly ventilated area, such as
a garage or other closed areas.
. Do not smoke or allow open
flames around the fuel or battery.
This will cause a fire.
. Because the fuel system is under
pressure, replacement of the fuel
filter should be performed only
by your SUBARU dealer.
. Wear adequate eye protection to
Maintenance and service
11-3
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11

Black plate (371,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
pipe, be sure to wipe it off.
. If the level gauge is not pulled out
easily, twist the level gauge right
and left, then pull it out. Other-
wise, you may be injured acci-
dentally straining yourself.
If you check the oil level just after stopping
the engine, wait a few minutes for the oil to
drain back into the oil pan before checking
the level.
Just after driving or while the engine is
warm, the engine oil level reading may be
in a range between the upper level and
the notch mark. This is caused by thermal
expansion of the engine oil.
To prevent overfilling the engine oil, do not
add any additional oil above the upper
level when the engine is cold.
& Changing the oil and oil filterChange the oil and oil filter according to
the maintenance schedule in the “War-
ranty and Maintenance Booklet ”.
The engine oil and oil filter must be
changed more frequently than listed in
the maintenance schedule when driving
on dusty roads, when short trips are
frequently made, or when driving in
extremely cold weather.
NOTEChanging the engine oil and oil filter
should be performed by a properly-
trained expert. It is recommended that
you have this service performed by
your SUBARU dealer.
1. Warm up the engine by letting the
engine idle for approximately 10 minutes
to ease draining the engine oil.
2. Park the vehicle on a level surface and
stop the engine.
3. Remove the oil filler cap.Turbo models
Non-turbo models4. Drain out the engine oil by removing
the drain plug while the engine is still
warm. The used oil should be drained into
an appropriate container and disposed of
properly.
WARNING
Be careful not to burn yourself with
hot engine oil.
5. Wipe the seating surface of the drain
plug with a clean cloth and tighten it
securely with a new sealing washer after
the oil has completely drained out.
6. Remove the under cover.
Maintenance and service
11-11
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11

Black plate (375,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
3. After refilling the reserve tank and the
radiator, reinstall the cap and check that
the rubber gaskets inside the radiator cap
are in the proper position.
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is
removed.
CAUTION
. Be careful not to spill engine
coolant when adding it. If coolant
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If engine coolant gets on
the exhaust pipe, be sure to wipe
it off.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
! Changing the coolant
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is
removed.
Always add genuine SUBARU coolant
and genuine SUBARU cooling system
conditioner whenever the coolant is re-
placed. Change the engine coolant and add
genuine SUBARU cooling system condi-
tioner using the following procedures
according to the maintenance schedule.
1. Remove the under cover.
2. Place a proper container under the
drain plug and loosen the drain plug.
3. Loosen the radiator cap to drain the
coolant from the radiator. Then drain the
coolant from the reserve tank. Tighten the
drain plug securely.NOTE (Turbo models only)The cap (without tabs) on top of the
radiator does not need to be removed.
To add coolant, remove the cap (with
tabs) on the coolant tank on top of the
engine.
Maintenance and service
11-15
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CONTINUED –
11

Black plate (377,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
correctly in place.
8. Start and race the engine at 2,000 to
3,000 rpm for 5 to 6 times within 40
seconds.
9. Stop the engine and wait until the
coolant cools down (122 to 140 8F [50 to
60 8C]). If there is any loss of coolant, add
coolant to the radiator ’s filler neck and to
the reserve tank ’s “FULL ”level.
10. Put the radiator cap and reservoir cap
back on and tighten firmly.
Air cleaner element
WARNING
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.
CAUTION
When replacing the air cleaner ele-
ment, use a genuine SUBARU air
cleaner element. If it is not used,
there is the possibility of causing a
negative effect to the engine.
The air cleaner element functions as a
filter screen. When the element is perfo-
rated or removed, engine wear will be
excessive and engine life shortened.
It is not necessary to clean or wash the air
cleaner element.
& Replacing the air cleaner
elementReplace the air cleaner element according
to the maintenance schedule in the
“Warranty and Maintenance Booklet ”. Un-
der extremely dusty conditions, replace it
more frequently. It is recommended that
you always use genuine SUBARU parts.
! Non-turbo models1) Connector
2) Clip
3) Clamp
4) Air intake boot
5) Clip1. Unplug the connector that is attached
to the top of the air cleaner case.
2. Detach the connector cable from the
clip on the right side on the air cleaner
Maintenance and service
11-17
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11