tire type SUBARU IMPREZA WRX 2007 3.G Owners Manual

your doctor.
Never drive if you are under the influence
of any illicit mind-altering drugs. For your
own health and well-being, we urge you
not to take illegal drugs in the first place
and to seek treatment if you are addicted
to those drugs. &Driving when tired or sleepy
WARNING
When you are tired or sleepy, your
reaction will be delayed and your
perception, judgment and attentive-
ness will be impaired. If you drive
when tired or sleepy, your, your
passengers ’and other persons ’
chances of being involved in a
serious accident may increase.
Please do not continue to drive but
instead find a safe place to rest if you
are tired or sleepy. On long trips, you
should make periodic rest stops to refresh
yourself before continuing on your journey.
When possible, you should share the
driving with others. &
Modification of your vehicle
CAUTION
Your vehicle should not be modified
other than with genuine Subaru
parts and accessories. Other types
of modifications could affect its
performance, safety or durability,
and may even violate governmental
regulations. In addition, damage or
performance problems resulting
from modification may not be cov-
ered under warranties.
& Car phone/cell phone and driving
CAUTION
Do not use a car phone/cell phone
while driving; it may distract your
attention from driving and can lead
to an accident. If you use a car
phone/cell phone, pull off the road
and park in a safe place before
using your phone. In some States/
Provinces, only hands-free phones
may legally be used while driving. &
Driving with pets
Unrestrained pets can interfere with your
driving and distract your attention from
driving. In a collision or sudden stop,
unrestrained pets or cages can be thrown
around inside the vehicle and hurt you or
your passengers. Besides, the pets can
be hurt under these situations. It is also for
their own safety that pets should be
properly restrained in your vehicle. Re-
strain a pet with a special traveling
harness which can be secured to the rear
seat with a seatbelt or use a pet carrier
which can be secured to the rear seat by
routing a seatbelt through the carrier ’s
handle. Never restrain pets or pet carriers
in the front passenger ’s seat. For further
information, consult your veterinarian,
local animal protection society or petshop.
& Tire pressures
Check and, if necessary, adjust the
pressure of each tire (including the spare)
at least once a month and before any long
journey.
Check the tire pressure when the tires are
cold. Use a pressure gauge to adjust the
tire pressures to the values shown on the
tire placard.
Refer to the “Tires and wheels ”section in 7
– CONTINUED –

5-24Audio
! To insert a disc
1. Press one of the disc selection buttons
(3) (numbered from 1 to 6) for which the
disc indicator light (2) is off.
The disc indicator lights are located
directly above the corresponding disc
selection buttons.
2. The indicator will begin blinking. The
blinking will last for 15 seconds.
During this period, insert a desired disc,
and the disc will begin to play. (If any disc
is not inserted during this period, the disc
slot (1) door will close. Repeat Step 1.)
Be sure to hold a disc with the label side
(the side where titles are printed) up.
3. To insert another disc, repeat Steps 1
and 2 choosing a different disc selectionbutton. ! To insert six discs at a time
1. Press and hold the disc selection
button (3) number 1 until all disc indicators
begin blinking (approximately 1.5 sec-onds).
2. The indicators will blink for 15 sec-
onds. During this period, insert six discs.
3. When all discs are loaded, the first
disc will begin to play. (If no disc is
inserted within this 15 seconds, the entire
disc load sequence will be canceled.) !
To remove a disc
1. Press the desired disc selection button
(3) (numbered from 1 to 6) for which the
disc indicator light is on.
2. Press the eject button “
”(4). The
selected disc will be ejected and the
indicator light will begin blinking.
3. To remove another disc, repeat Steps
1 and 2 choosing a different disc selectionbutton.
(To remove discs when the ignition switch
is in the “LOCK ”position, press the eject
button “
”, and the first disc will be
ejected. Press the eject button “”again,
and the next disc will be ejected and so
on. At this time, the disc selection buttons
are disabled.) ! To remove all discs at one time
1. Press and hold the eject button “
”(4)
until all disc indicators begin blinking
(approximately 1.5 seconds), and the first
disc will be ejected.
2. When the disc is removed, the next
one will be ejected, and so on. ! To replace a playing disc with another
Simply press the desired one of disc
selection buttons (3) (numbered from 1 to 6) or press the disc selection button on
the radio unit to select the desired disc,
and the disc will begin to play. !
Disc indicators
Lit: when the corresponding storage tray is
occupied by a disc.
Blinking: Disc player is either in loading,
eject or changing mode.
OFF: No disc is loaded or the ignition
switch is in the “LOCK ”position.
! Open/Closed disc slot indicator
When the disc slot is open, the disc
indicators on both sides of the slotilluminate. ! Function control
Refer to CD changer control operating
instructions described in the “Type A audio
set ”or “Type B audio set ”section.

8-10Driving tips
CAUTION
Avoid prolonged continuous driving
in snowstorms. Snow will enter the
engine ’s intake system and may
hinder the air flow, which could
result in engine shutdown or evenbreakdown.
! Wiper operation when snowing
Before driving in cold weather, make sure
the wiper blades are not frozen to the
windshield or rear window. If the wiper
blades are frozen to the windshield or rear
window, use the defroster with the airflow
control dial in the “
”position and the
temperature control dial set for maximum
warmth until the wiper blades are com-
pletely thawed out. If your vehicle is
equipped with a wiper deicer, it is helpful
to thaw the windshield wiper blades. To
thaw out the rear wiper blade, use the rear
window defogger.
When driving in snow, if frozen snow starts
to stick on the surface of the windshield
despite wiper operation, use the defroster
with the airflow control dial in “
”and the
temperature control dial set for maximum
warmth. After the windshield gets warmed
enough to melt the frozen snow on it,
wash it away using the windshield washer. Snow stuck on the wiper arm prevents the
wiper from working effectively. If snow is
stuck on the wiper arm, pull off the road to
a safe place, then remove it. If you stop
the vehicle at road side, use the hazard
warning flasher to alert other drivers.
We recommend use of non-freezing type
wiper blades (winter blades) during the
seasons you could have snow and sub-
zero temperatures. Blades of this type
give superior wiping performance in
snowy conditions. Be sure to use blades
that are suitable for your vehicle.
CAUTION
During high-speed driving, non-
freezing type wiper blades may not
perform as well as standard wiper
blades. If this happens, reduce the
vehicle speed.
NOTE
When the season requiring non-freez-
ing type wiper blades is over, replace
them with standard wiper blades. & Corrosion protection
Refer to the “Corrosion protection ”section
(chapter 10). &
Snow tires
! All models except WRX-STI
WARNING
. When replacing original tires with
winter (snow) tires, make sure
you use only the same size,
construction and load range as
the original tires listed on the tire
placard. Using other sizes and
construction may affect speed-
ometer/odometer calibration and
clearance between the body and
tires. It also may be dangerous
and lead to loss of vehicle con-trol.
. You must install four winter tires
that are of the same size, con-
struction, brand, and load range.
Mixing other sizes or construc-
tions may result in severe me-
chanical damage to the drive
train of your vehicle and may
affect ride, handling, braking and
speedometer/odometer calibra-
tion. It also may be dangerous
and lead to loss of vehicle con-trol.
. Do not use a combination of
radial, belted bias or bias tires

since it may cause dangerous
handling characteristics and lead
to an accident.
Your vehicle is equipped with “all season
tires ”as original equipment, which are
designed to provide an adequate measure
of traction, handling and braking perfor-
mance in year-round driving. In winter, it
may be possible to enhance performance
through use of tires designed specifically
for winter driving conditions.
When you choose to install winter tires on
your vehicle, be sure to use the correct tire
size and type. You must install four winter
tires that are of the same size, construc-
tion, brand and load range and you should
never mix radial, belted bias or bias tires
since this may result in dangerous hand-
ling characteristics. When you choose a
tire, make sure that there is enough
clearance between the tire and vehicle
body.
Remember to drive with care at all times
regardless of the type of tires on yourvehicle. ! WRX-STI
WARNING
. When replacing original tires with winter (snow) tires, make sure
you use only the same size,
construction and load range as
the original tires listed on the tire
placard. Using other sizes and
construction may affect speed-
ometer/odometer calibration and
clearance between the body and
tires. It also may be dangerous
and lead to loss of vehicle con-trol.
. You must install four winter tires
that are of the same size, con-
struction, brand, and load range.
Mixing other sizes or construc-
tions may result in severe me-
chanical damage to the drive
train of your vehicle and may
affect ride, handling, braking and
speedometer/odometer calibra-
tion. It also may be dangerous
and lead to loss of vehicle con-trol.
. Do not use a combination of
radial, belted bias or bias tires
since it may cause dangerous
handling characteristics and lead
to an accident.
Your vehicle is equipped with “summer
tires ”as original equipment, which are
inadequate for driving on slippery roads such as on snow-covered or icy roads.
Compared with winter and all-season
tires, summer tires give significantly less
grip on snowy and icy road surfaces.
Therefore, use of winter tires is strongly
recommended when driving with such
road conditions.
When you choose to install winter tires on
your vehicle, be sure to use the correct tire
size and type. You must install four winter
tires that are of the same size, construc-
tion, brand and load range and you should
never mix radial, belted bias or bias tires
since this may result in dangerous hand-
ling characteristics. When you choose a
tire, make sure that there is enough
clearance between the tire and vehicle
body.
Remember to drive with care at all times
regardless of the type of tires on yourvehicle. &
Tire chains
Driving on snowy grades or icy roads may
require the use of tire chains, in which
case put the chains on the front wheels
only. Use only SAE class S type chains
that are of the correct size for your tires so
as not to damage the vehicle body orsuspension.
When driving with tire chains, drive at Driving tips
8-11
– CONTINUED –

8-24Driving tips
haust system, brake system, or
other systems when installing a
hitch or other trailer towingequipment.
. Do not use axle-mounted hitches
as they can cause damage to the
axle housing, wheel bearings,
wheels or tires.
! WAGON including OUTBACKSPORT
The use of a genuine SUBARU trailer
hitch is recommended. A genuine
SUBARU hitch is available from your
SUBARU dealer.
If use of a non-genuine hitch is unavoid-
able, be sure the hitch is suited to your
vehicle and trailer. Consult with a profes-
sional hitch supplier to assist you in
choosing an appropriate hitch for your
vehicle. Be sure to follow all of the hitchmanufacturer ’s instructions for installation
and use.
Never use a hitch that mounts only to the
rear bumper. The bumper is not designed
to handle that type of load.
For all types of hitches, regularly check
that the hitch mounting bolts and nuts aretight. !
SEDAN
SUBARU does not offer accessory trailer
hitches. Consult with a professional hitch
supplier to assist you in choosing an
appropriate hitch for your vehicle. Be sure
to follow all of the hitch manufacturer ’s
instructions for installation and use.
Never use a hitch that mounts only to the
rear bumper. The bumper is not designed
to handle that type of load.
Regularly check that the hitch mounting
bolts and nuts are tight. & Connecting a trailer
! Trailer brakes
If your trailer ’s total weight (trailer weight
plus its cargo weight) exceeds 1,000 lbs
(453 kg), the trailer is required to be
equipped with its own brake system.
Electric brakes or surge brakes are
recommended, and must be installed
properly. Check that your trailer ’s brakes
conform with Federal, state/province and/
or other applicable regulations. YourSUBARU ’s brake system is not designed
to be tapped into the trailer ’s hydraulic
brake system.
Please ask your SUBARU dealer and
professional trailer supplier for more in-
formation about the trailer ’s brake system.WARNING
. Adequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
. Do not directly connect your
trailer ’s hydraulic brake system
to the hydraulic brake system in
your vehicle. Direct connection
would cause the vehicle ’s brake
performance to deteriorate and
could lead to an accident.
! Trailer safety chains
In case the trailer hitch connector or hitch
ball should break or become discon-
nected, the trailer could get loose and
create a traffic safety hazard.
For safety, always connect the towing
vehicle and trailer with trailer safety
chains. Pass the chains crossing each
other under the trailer tongue to prevent
the trailer from dropping onto the ground
in case the trailer tongue should discon-
nect from the hitch ball. Allow sufficient
slack in the chains taking tight-turn situa-
tions into account; however, be careful not
to let them drag on the ground.
For more information about the safety
chain connection, refer to the instructions

Maintenance 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
Non-turbo models .............................................. 11-6
Turbo models ..................................................... 11-7
Engine oil ............................................................ 11-8
Checking the oil level ......................................... 11-8
Changing the oil and oil filter .............................. 11-9
Recommended grade and viscosity .................. 11-11
Recommended grade and viscosity under severe driving conditions .......................................... 11-12
Synthetic oil ..................................................... 11-12
Cooling system ................................................ 11-12
Cooling fan, hose and connections ................... 11-12
Engine coolant ................................................. 11-13
Air cleaner element .......................................... 11-15
Replacing the air cleaner element ..................... 11-15
Spark plugs ...................................................... 11-17
Recommended spark plugs .............................. 11-18
Drive belts ........................................................ 11-18
Manual transmission oil .................................. 11-19
Checking the oil level ....................................... 11-19
Recommended grade and viscosity .................. 11-20
Automatic transmission fluid .......................... 11-20
Checking the fluid level .................................... 11-20 Recommended fluid
......................................... 11-21
Front differential gear oil (AT vehicles) .......... 11-21
Checking the oil level ...................................... 11-21
Recommended grade and viscosity .................. 11-22
Rear differential gear oil .................................. 11-22
Checking the gear oil level ............................... 11-22
Recommended grade and viscosity .................. 11-23
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 vehicles) ............................... 11-26
Checking the fluid level .................................... 11-26
Recommended clutch fluid ............................... 11-27
Brake booster .................................................. 11-27
Brake pedal ...................................................... 11-27
Checking the brake pedal free play .................. 11-27
Checking the brake pedal reserve distance....... 11-28
Clutch pedal (MT vehicles) .............................. 11-28
Checking the clutch function ............................ 11-28
Checking the clutch pedal free play .................. 11-28
Replacement of brake pad and lining ............ 11-29
Breaking-in of new brake pads and linings ....... 11-29
Parking brake stroke ....................................... 11-30
Tires and wheels .............................................. 11-30
Types of tires ................................................... 11-30
Tire inspection ................................................. 11-30
Tire pressures and wear .................................. 11-31
Maintenance and service
11

11-30Maintenance and service
Parking brake stroke
Check the parking brake stroke according
to the maintenance schedule in the“Warranty and Maintenance Booklet ”.
When the parking brake is properly
adjusted, braking power is fully applied
by pulling the lever up seven to eight
notches gently but firmly (approximately
44 lbs [196 N, 20 kg]). If the parking brake
lever stroke is not within the specified
range, have the brake system checked
and adjusted at your SUBARU dealer. Tires and wheels &
Types of tires
You should be familiar with type of tires
present on your vehicle.
The factory-fitted 17-inch tires on the
WRX-STI are summer tires. The factory-
fitted tires on other versions are all-seasontires. ! All season tires
All season tires are designed to provide
an adequate measure of traction, handling
and braking performance in year-round
driving including snowy and icy road
conditions. However all season tires do
not offer as much traction performance as
winter (snow) tires in heavy or loose snow
or on icy roads.
All season tires are identified by “ALL
SEASON ”and/or “M+S ”(Mud & Snow) on
the tire sidewall. ! Summer tires
Summer tires are high-speed capability
tires best suited for highway driving under
dry conditions.
Summer tires are inadequate for driving
on slippery roads such as on snow-
covered or icy roads.
If you drive your vehicle on snow-covered
or icy roads, we strongly recommend the use of winter (snow) tires.
When installing winter tires, be sure to
replace all four tires. !
Winter (snow) tires
Winter tires are best suited for driving on
snow-covered and icy roads. However
winter tires do not perform as well as
summer tires and all season tires on roads
other than snow-covered and icy roads. & Tire inspection
Check on a daily basis that the tires are
free from serious damage, nails, and
stones. At the same time, check the tires
for abnormal wear.
Contact your SUBARU dealer immedi-
ately if you find any problem. NOTE . When the wheels and tires strike
curbs or are subjected to harsh treat-
ment as when the vehicle is driven on a
rough surface, they can suffer damage
that cannot be seen with the naked eye.
This type of damage does not become
evident until time has passed. Try not
to drive over curbs, potholes or on
other rough surfaces. If doing so is
unavoidable, keep the vehicle ’s speed
down to a walking pace or less, and
approach the curbs as squarely as

recommends replacing all four tires at the
same time.
WARNING
. All four tires must be the same in
terms of manufacturer, brand
(tread pattern), construction, de-
gree of wear, speed symbol, load
index and size. Mixing tires of
different types, sizes or degrees
of wear can result in damage tovehicle ’s powertrain. Use of dif-
ferent types or sizes of tires can
also dangerously reduce con-
trollability and braking perfor-
mance and can lead to an acci- dent.
. Use only radial tires. Do not use
radial tires together with belted
bias tires and/or bias-ply tires.
Doing so can dangerously re-
duce controllability, resulting in
an accident.
& Wheel replacement
When replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available from SUBARU dealers.WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing dur-
ing turns. The resulting loss of
vehicle control could lead to anaccident.
NOTE
When any of the wheels are removed
and replaced for tire rotation or to
change a flat tire, always check the
tightness of the wheel nuts after driv-
ing approximately 600 miles (1,000 km).
If any nut is loose, tighten it to the
specified torque. Aluminum wheels
Aluminum wheels can be scratched and
damaged easily. Handle them carefully to
maintain their appearance, performance,
and safety. .
When any of the wheels are removed
and replaced for tire rotation or to change
a flat tire, always check the tightness of
the wheel nuts after driving approximately
600 miles (1,000 km). If any nut is loose,
tighten it to the specified torque. . Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the wheel. . Never let the wheel rub against sharp
protrusions or curbs.. Be sure to fit tire chains on uniformly
and completely around the tire, otherwise
the chains may scratch the wheel. . When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for aluminum wheels. Maintenance and service
11-35

13-2Consumer information and Reporting safety defects
For U.S.A.
The following information has been
compiled according to Code of Fed-
eral Regulations “Title 49, Part 575 ”. Tire information &
Tire labeling
Many markings (e.g. Tire size, Tire
Identification Number or TIN) are
placed on the sidewall of a tire by tire
manufacturers. These markings can
provide you with useful information on
the tire. ! Tire size
Your vehicle comes equipped with P-
Metric tire size. It is important to
understand the sizing system in se-
lecting the proper tire for your vehi-
cles. Here is a brief review of the tire
sizing system with a breakdown of its
individual elements. ! P Metric
With the P-Metric system, Section
Width is measured in millimeters. To
convert millimeters into inches, divide
by 25.4. The Aspect Ratio (Section
Height divided by Section Width)
helps provide more dimensional in-
formation about the tire size. Example:
(1) P = Certain tire type used on
light duty vehicles such as passenger
cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height
7
section width).
(4) R = Radial Construction
(5) Rim diameter in inches ! Load and Speed Rating Descrip- tions
The load and speed rating descrip-
tions will appear following the size
designation.
They provide two important facts
about the tire. First, the number
designation is its load index. Second,
the letter designation indicates thetire ’s speed rating.

Example:
(6) Load Index: A numerical code
which specifies the maximum load a
tire can carry at the speed indicated
by its speed symbol, at maximum
inflation pressure.
For example,“90 ”means 1,323 lbs
(600 kg), “89 ”means 1,278 lbs (580
kg).
WARNING
Load indices apply only to the
tire, not to the vehicle. Putting a
load rated tire on any vehicle
does not mean the vehicle can
be loaded up to the tire ’s rated
load.
(7) Speed Rating: An alphabetical
system describing a tire ’s capability to
travel at established and predeter-
mined speeds.
For example, “V ” means 149 mph
(240 km/h)
WARNING
. Speed ratings apply only to
the tire, not to the vehicle.
Putting a speed rated tire on
any vehicle does not mean
the vehicle can be operated at
the tire ’s rated speed.
. The speed rating is void if the
tires are worn out, damaged,
repaired, retreaded, or other-
wise altered from their origi-
nal condition. If tires are re-
paired, retreaded, or other-
wise altered, they may not be
suitable for original equip-
ment tire designed loads and speeds.
! Tire Identification Number (TIN)
Tire Identification Number (TIN) is
marked on the intended outboard
sidewall. The TIN is composed of four
groups. Here is a brief review of the
TIN with a breakdown of its individual
elements.(1) Manufacturer ’s Identification
Mark
(2) Tire Size
(3) Tire Type Code
(4) Date of Manufacture
The first two figures identify the week,
starting with “01 ”to represent the first
full week of the calendar year; the
second two figures represent the
year. For example, 0101 means the
1st week of 2001. ! Other markings
The following makings are also
placed on the sidewall. ! Maximum permissible inflation
pressure
The maximum cold inflation pressure
to which this tire may be inflated. For
example, “300 kPa (44 PSI) MAX.
PRESS ”
! Maximum load rating
Theloadratingatthemaximum
permissible weight load for this tire.
For example, “MAX. LOAD 580 kg
(1279 LBS) @ 300 kPa (44 PSI) MAX.
PRESS. ”
Consumer information and Reporting safety defects
13-3
– CONTINUED –