2007 SUBARU IMPREZA brake

&Recommended clutch fluid
FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid
CAUTION
Avoid mixing DOT 3 and DOT 4
brake fluids even if they are of the
same brand. Brake booster
If the brake booster does not operate as
described in the following, have it checked
by your SUBARU dealer.
1. With the engine off, depress the brake
pedal several times, applying the same
pedal force each time. The distance the
pedal travels should not vary.
2. With the brake pedal depressed, start
the engine. The pedal should move
slightly down to the floor.
3. With the brake pedal depressed, stop
the engine and keep the pedal depressed
for 30 seconds. The pedal height should
not change.
4. Start the engine again and run for
approximately one minute then turn it off.
Depress the brake pedal several times to
check the brake booster. The brake
booster operates properly if the pedal
stroke decreases with each depression. Brake pedal
Check the brake pedal free play and
reserve distance according to the main-
tenance schedule in the
“Warranty and
Maintenance Booklet ”.
& Checking the brake pedal
free play
1) 0.04 –0.12 in (1.0 –3.0 mm)
Stop the engine and firmly depress the
brake pedal several times. Lightly press
the brake pedal down with one finger to
check the free play with a force of less
than 2 lbs (10 N, 1 kg).
If the free play is not within proper
specification, contact your SUBARU deal-
er. Maintenance and service
11-27
– CONTINUED –

11-28Maintenance and service
&Checking the brake pedal
reserve distance
1) More than 2.56 in (65 mm)
Depress the pedal with a force of approxi-
mately 66 lbs (294 N, 30 kg) and measure
the distance between the upper surface of
the pedal pad and the floor.
When the measurement is smaller than
the specification, or when the pedal does
not operate smoothly, contact with your
SUBARU dealer. Clutch pedal (MT vehicles)
Check the clutch pedal free play and
reserve distance according to the main-
tenance schedule in the
“Warranty and
Maintenance Booklet ”.
& Checking the clutch function
Check the clutch engagement and disen-gagement.
1. With the engine idling, check that there
are no abnormal noises when the clutch
pedal is depressed, and that shifting into
1st or reverse feels smooth.
2. Start the vehicle by releasing the pedal
slowly to check that the engine and
transmission smoothly couple without
any sign of slippage. &
Checking the clutch pedal
free play1) 0.16 –0.51 in (4.0 –13.0 mm)
Lightly press the clutch pedal down with
your finger until you feel resistance, and
check the free play.
If the free play is not within proper
specification, contact your SUBARU deal-
er.

Replacement of brake pad
and lining
The right front disc brake and the right rear
disc brake have audible wear indicators
on the brake pads. If the brake pads wear
close to their service limit, the wear
indicator makes a very audible scraping
noise when the brake pedal is applied.
If you hear this scraping noise each time
you apply the brake pedal, have the brake
pads serviced by your SUBARU dealer as
soon as possible.
CAUTION
If you continue to drive despite the
scraping noise from the audible
brake pad wear indicator, it will result in the need for costly brake
rotor repair or replacement.
& Breaking-in of new brake
pads and linings
When replacing the brake pad or lining,
use only genuine SUBARU parts. After
replacement, the new parts must be
broken in as follows: ! Brake pad and lining
While maintaining a speed of 30 to 40
mph (50 to 65 km/h), step on the brake
pedal lightly. Repeat this five or moretimes. ! Parking brake lining
1. Drive the vehicle at a speed of
approximately 22 mph (35 km/h).
2. With the parking brake release button
pushed in, pull the parking brake lever
SLOWLY and GENTLY. (Pulling with a
force of approximately 33 lbs [147 N, 15kg].)
3. Drive the vehicle for approximately
220 yards (200 meters) in this condition.
4. Wait 5 to 10 minutes for the parking
brake to cool down. Repeat this proce-dure.
5. Check the parking brake stroke. If the
parking brake stroke is out of the specified range, adjust it by turning the adjusting nut
located on the parking brake lever.
Parking brake stroke: 7–8 notches / 44 lbs (196 N, 20 kg)
WARNING
A safe location and situation should
be selected for break-in driving.
CAUTION
Pulling the parking brake lever too
forcefully may cause the rear
wheels to lock. To avoid this, be
certain to pull the lever up slowly
and gently. Maintenance and service
11-29

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

11-46Maintenance and service
Wattage Bulb No.
1) Parking light 12V-5W 168
2) Front turn signal light 12V-21W (Amber) –
3) Front side marker light 12V-5W 168
4) Map light 12V-8W –
5) Dome light 12V-8W –
6) High beam headlight 12V-60W 9005 (HB3)
7) Front fog light 12V-55W H3
8) Low beam headlight WRX-STI 12V-35W D2S
Except WRX-STI 12V-55W H7
9) Trunk room light 12V-5W –
10) High mount stop light
Sedan
(in compartment) 12V-21W –
(in rear spoiler) 12V-1.2W –
Wagon 12V-13W 912
11) Brake/tail light 12V-21/5W 7443
12) Tail light 12V-21/5W 7443
13) Rear turn signal light 12V-21W (Amber) –
14) Backup light 12V-21W 7440
15) License plate light 12V-5W 168
16) Cargo area light 12V-5W –CAUTION
Replace any bulb only with a new
bulb of the specified wattage. Using
a bulb of different wattage could
result in a fire.
& Headlights (WRX-STI)
WARNING
High-intensity-discharge (HID) bulbs
are used for the low beams of the
headlights on the WRX-STI. These
HID bulbs use an extremely high
voltage. To avoid the risk of an
electric shock and resulting serious
injury, you should not attempt to
replace them. Neither should you
attempt to replace the high-beam
bulbs, remove/refit the headlight
assemblies, or remove any head-
light-assembly components. For re-
placement of the headlight bulbs
(low-beam and high-beam), removal
and installation of the headlight
assemblies, and removal of head-
light-assembly components, contact
your SUBARU dealer.

3. Replace the bulb with a new one.
4. Reconnect the electrical connector. At
this time, use care not to touch the bulbsurface.
5. To install the bulb to the headlight
assembly, turn it clockwise until it clicks. &Front turn signal light bulbs
It may be difficult to replace the bulbs.
Have your SUBARU dealer replace the
bulbs if necessary. & Parking light
It may be difficult to replace the bulbs.
Have your SUBARU dealer replace the
bulbs if necessary. & Front fog light
It may be difficult to replace the bulbs.
Have your SUBARU dealer replace the
bulbs if necessary. &
Rear combination lights
! Sedan
1. Remove the clip from the rear trunk
trim with a screwdriver.
1) Tail light
2) Brake/tail light
3) Rear turn signal light
4) Backup light
2. Open the rear portion of the side trunk
trim panel.
3. Remove the bulb socket from the rear
combination light assembly by turning itcounterclockwise.
4. Pull the bulb out of the bulb socket and
replace it with a new one.
5. Set the bulb socket into the rear
combination light assembly and turn it
clockwise until it locks.
6. Secure the rear trunk trim panel with
the clips. Maintenance and service
11-49
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11-50Maintenance and service
! Wagon
1. Using a Phillips screwdriver, remove
the upper and lower clips that secure the
side cover of the rear combination light
assembly.
2. Remove the side cover.
3. Remove the upper and lower bolts.
Then, slide the rear combination lamp
assembly to the rear and remove it from
the vehicle.1) Brake/tail light
2) Rear turn signal light
3) Backup light
4. Remove the bulb socket from the rear
combination light assembly by turning itcounterclockwise.
5. Pull the bulb out of the bulb socket and
replace it with a new one.
6. Set the bulb socket into the rear
combination light assembly and turn it
clockwise until it locks.