2003 SUBARU IMPREZA brake

Maintenance and service
11-37
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Brake pedal
Check the brake pedal free play and reserve dis-
tance according to the maintenance 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 ofless than 2 lb (10 N, 1 kg).
If the free play is not within proper specification, contact your SUBARU dealer.
Checking the brake pedal reserve dis- tance
1) More than 2.56 in (65 mm)
Depress the pedal with a force of approximately 66
lb (294 N, 30 kg) and measure the distance be-
tween the upper surface of the pedal pad and the
floor.
When the measurement is smaller than the specifi-
cation, or when the pedal does not operate smooth-
ly, contact with your SUBARU dealer.

Maintenance and service
11-39
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Replacement of brake pad and lining
The front disc brakes and the right rear disc brake have an audible wear indicators on the brake pads. If the brake pads wear close to their service limit,
the wear indicator makes a very audible scrapingnoise when the brake pedal is applied.
If you hear this scraping noise each time you apply the brake pedal, have the brake pads serviced byyour SUBARU dealer as soon as possible.
CAUTION
If you continue to drive despite the scraping noise from the audible brake pad wear indica-
tor, 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 more times.
Parking brake lining
1. Drive the vehicle at a speed of about 22 mph (35km/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 lb [147 N,15 kg].)
3. Drive the vehicle for about 220 yards (200 me- ters) in this condition.

Maintenance and service
11-40
4. Wait 5 to 10 minutes for the parking brake to cool
down. Repeat this procedure.
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 lb (196 N, 20 kg)
WARNING
A safe location and situation should be se- lected 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. Parking brake stroke
Check the parking brake stroke according to the
maintenance schedule in the
“Warranty and Mainte-
nance 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(about 44 lb, 196 N, 20 kg). If the parking brake le-
ver stroke is not within the specified range, have thebrake system checked and adjusted at your
SUBARU dealer.

Maintenance and service
11-48
WARNING
All four tires must be the same in terms of
manufacturer, brand (tread pattern), construc-
tion, degree of wear, speed symbol, load indexand size. Mixing tires of different types, sizes or degrees of wear can result in damage to ve-
hicle’ s power train. Use of different types or
sizes of tires can also dangerously reduce
controllability and braking performance andcan lead to an accident. Use only radial tires. Do not use radial tires
together with belted bias tires and/or bias-plytires. Doing so can dangerously reduce con-
trollability, resulting in an accident.
Wheel replacement
When replacing wheels due, for example, to dam-
age, make sure the replacement wheels match the
specifications of the wheels that are fitted as stan-
dard equipment. Replacement wheels are available
from SUBARU dealers.
WARNING
Use only those wheels that are specified for your vehicle. Wheels not meeting specifica-tions could interfere with brake caliper opera-tion and may cause the tires to rub against the wheel well housing during turns. The resulting loss of vehicle control could lead to an acci-dent.

Maintenance and service
11-62
Wattage Bulb No.
1) Front turn signal 12V –21W —
2) Spot light 12V –8W —
3) Room light 12V –8W —
4) Side marker light (Front) 12V–5W 168
5) Parking light 12V –5W 168
6) Front fog light 12V –55W —
7) Headlight 12V–60/55W 9007 (HB3)
8) Trunk room light 12V –16W W16W
9) High mount stop light Sedan (in compartment) 12V-18W 921
Sedan (in rear spoiler) 12V-1.2W —
Wagon 12V-13W 912
10) Backup light 12V –21W 7440
11) Rear turn signal 12V –21W —
(Amber)
12) Brake light 12V –21W 7440
13) Licence plate light 12V –5W 168
14) Tail light 12V –21/5W 7443
15) Brake/tail light 12V –21/5W 7443
16 )Cargo area light 12V –13W —
17) Side marker light (Rear) 12V –5W 168
Headlight
CAUTION
Halogen headlight bulbs become very hot while in use. If you touch the bulb surfacewith bare hands or greasy gloves, fingerprints or grease on the bulb surface developinto hot spots, causing the bulb to break. If there are finger prints or grease on the bulb
surface, wipe them away with a soft cloth
moistened with alcohol.
NOTE If headlight aiming is required, consult your
SUBARU dealer for proper adjustment of the headlight aim.

Maintenance and service
11-70
prying the edge of the lens with a regular screwdriv-
er. At this time, use a cloth to protect the body from
being damaged by the screwdriver.
2. Remove the bulb holder from the front side mark-
er light assembly by turning it counterclockwise.
3. Pull the bulb out of the socket. Install a new bulb.
4. Set the bulb holder into the front side marker light
assembly and turn it clockwise until it locks.
5. Reinstall the front side marker light assembly
onto the side of the front fender. Rear combination lights
Sedan1. Remove the clip from the rear trunk trim with a
regular screwdriver.
1) Backup light
2) Rear turn signal light
3) Brake light 4) Tail light
5) Brake/tail light
2. Open the rear portion of the side trunk trim panel.
3. Remove the bulb holder from the rear combina-
tion light assembly by turning it counterclockwise.
4. Remove the bulb from the socket by pushing it
and turning counterclockwise. Install a new bulb.
5. Set the bulb holder into the rear combination light
assembly and turn it clockwise until it locks.
6. Secure the rear trunk trim panel with the clips.

Specifications
12-7
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Fuse panelFuse ratingCircuit
1210AIllumination bright- ness control
1310ACombination meter
SRS lamp
1410ARear window wiper and washer
1530AWindshield wiper and washer
1620ABrake light
1715AAir conditioner
1815ABackup light
Cruise control
1920AMirror heater
20Empty
21Empty
Fuse panelFuse ratingCircuit
2210A ABS ignition
2320AAccessory power outlet (cargo)
Seat heater

Specifications
12-9
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Bulb chart
Description Wattage Bulb type
Headlight 12V-60/55W 9007 (HB3)
Front fog light 12V-55W —
Front turn signal 12V-21W —
Parking light 12V-5W 168
Side marker light (Front) 12V-5W 168
Side marker light (Rear) 12V-5W 168 Rear combination light Brake light 12V-21W 7440
Brake/tail 12V-21/5W 7443
Turn signal 12V-21W (Amber) —
Tail light 12V-21/5W 7443
Back-up light 12V-21W 7440
High mount stop light Sedan
(in compartment) 12V-18W 921 Sedan
(in rear spoiler) 12V-1.2W —
Wagon 12V-13W 912
License plate light 12V-5W 168
Trunk room light 12V-16W W16W Description Wattage Bulb type
Cargo area light 12V-13W
—
Front ashtray light 12V-1.4W —
Dome light 12V-8W —
Map light 12V-8W —