SUBARU IMPREZA WRX 2011 4.G Owners Manual

11-38Maintenance and service
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.. When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for aluminum wheels. Windshield washer fluid
If you spray washer fluid on the windshield
but the supply of washer fluid appears to
diminish, check the level of washer fluid in
the tank.
Washer fluid level gauge
Remove the washer tank filler cap, then
check the fluid level indicated by the level
gauge (attached to the inside of the cap).
If the level is near the
“Low ”mark, add
fluid until it reaches the “Hi ”level on the

level gauge or the“FULL ”mark on the
tank.
Use windshield washer fluid. If windshield
washer fluid is unavailable use clean
water.
In areas where water freezes in winter,
use an anti-freeze type windshield washer
fluid. SUBARU Windshield Washer Fluid
contains 58.5% methyl alcohol and 41.5%
surfactant, by volume. Its freezing tem-
perature varies according to how much it
is diluted, as indicated in the followingtable.
Washer Fluid
Concentration Freezing
Temperature
30% 10.48F( 12 8C)
50% 48F( 20 8C)
100% 49 8F( 45 8C)
CAUTION
Never use engine coolant as washer
fluid because it could cause paintdamage.
In order to prevent freezing of washer
fluid, check the freezing temperatures in
the table above when adjusting the fluid
concentration to the outside temperature.
If you fill the reservoir tank with a fluid with a different concentration from the one
used previously, purge the old fluid from
the piping between the reservoir tank and
washer nozzles by operating the washer
for a certain period of time. Otherwise, if
the concentration of the fluid remaining in
the piping is too low for the outside
temperature, it may freeze and block thenozzles.
CAUTION
. Adjust the washer fluid concen-
tration appropriately for the out-
side temperature. If the concen-
tration is inappropriate, sprayed
washer fluid may freeze on the
windshield and obstruct your
view, and the fluid may freeze in
the reservoir tank.
. State or local regulations on
volatile organic compounds may
restrict the use of methanol, a
common windshield washer anti-
freeze additive. Washer fluids
containing non-methanol anti-
freeze agents should be used
only if they provide cold weather
protection without damaging
your vehicle ’s paint, wiper blades
or washer system. Replacement of wiper blades
Grease, wax, insects, or other material on
the windshield or the wiper blade results in
jerky wiper operation and streaking on the
glass. If you cannot remove the streaks
after operating the windshield washer or if
the wiper operation is jerky, clean the
outer surface of the windshield (or rear
window) and the wiper blades using a
sponge or soft cloth with a neutral
detergent or mild-abrasive cleaner. After
cleaning, rinse the windshield and wiper
blades with clean water. The windshield is
clean if beads do not form when you rinse
the windshield with water.
CAUTION
. Do not clean the wiper blades
with gasoline or a solvent, such
as paint thinner or benzine. This
will cause deterioration of the
wiper blades.
. While removing the wiper blades
from the wiper arms, do not
return the wiper arms to the
original positions. Otherwise,
the windshield surface may bescratched.
. When returning the raised wiper
arms to the original positions, Maintenance and service
11-39
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11-40Maintenance and service
carefully return the wiper arms
on the windshield by hand. You
should not return the wiper arms
to the windshield only by the
return spring. Otherwise, the wi-
per arms may be deformed and/
or the windshield surface may bescratched.
If you cannot eliminate the streaking even
after following this method, replace the
wiper blades using the following proce-dures. &
Windshield wiper blade as- sembly
! Type A
1. Raise the wiper arm off the windshield.
1) Stopper
2. Remove the wiper blade assembly by
holding its pivot area and pushing it in the
direction shown by the arrow while de-
pressing the wiper blade stopper.
3. Install the wiper blade assembly to the
wiper arm. Make sure that it locks in place.
4. Hold the wiper arm by hand and slowly
lower it in position. !
Type B
1. Raise the wiper arm off the windshield.
1) Open the cover
2) Pull down the wiper blade
2. Remove the wiper blade assembly by
opening the cover and pulling it down in
the direction shown in the illustration.
3. Install the wiper blade assembly to the
wiper arm. Make sure that it locks in place.
4. Hold the wiper arm by hand and slowly
lower it in position.

&Windshield wiper blade rub-
ber (type A and type B)
NOTE
The following illustrations show the
replacement procedures of the blade
rubber for a type A wiper blade assem-
bly, however the replacement proce-
dures are the same for a type B wiper
blade assembly.
1) Metal support
1. Grasp the locked end of the blade
rubber assembly and pull it firmly until the
stoppers on the rubber are free of the
metal support.
1) Metal spines
2. If the new blade rubber is not provided
with two metal spines, remove the metal
spines from the old blade rubber and
install them in the new blade rubber.
3. Align the claws of the metal support with the grooves in the rubber and slide
the blade rubber assembly into the metal
support until it locks.
1) Stopper
4. Be sure to position the claws at the
end of the metal support between the
stoppers on the rubber as shown. If the
rubber is not retained properly, the wiper
blade may scratch the windshield. NOTE
The illustration shows the replacement
procedure for type A rubber wiper
blades, however the replacement pro-
cedure is the same for type B. Perform
the replacement of type B wiper blades
following the procedure in this section. Maintenance and service
11-41
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11-42Maintenance and service
& Rear window wiper blade assembly
1. Raise the wiper arm off the rear
window.
2. Turn the wiper blade assembly coun- terclockwise.
3. Pull the wiper blade assembly toward
you to remove it from the wiper arm.
4. Install the wiper blade assembly to the
wiper arm. Make sure that it locks in place.
5. Hold the wiper arm by hand and slowly
lower it in position. &
Rear window wiper blade rubber
1. Pull out the end of the blade rubber
assembly to unlock it from the plasticsupport.

2. Pull the blade rubber assembly out of
the plastic support.
1) Metal spines
3. If the new blade rubber is not provided
with two metal spines, remove the metal
spines from the old blade rubber and
install them in the new blade rubber.
4. Align the claws of the plastic support
with the grooves in the blade rubber
assembly, then slide the blade rubber
assembly into place.
Securely retain both ends of the rubber
with the stoppers on the plastic support ends. If the rubber is not retained properly,
the wiper may scratch the rear windowglass.
5. Install the wiper blade assembly to the
wiper arm. Make sure that it locks in place.
6. Hold the wiper arm by hand and slowly
lower it in position.
Maintenance and service
11-43

11-44Maintenance and service
Battery
WARNING
. Before beginning work on or near
any battery, be sure to extinguish
all cigarettes, matches, and light-
ers. Never expose a battery to an
open flame or electric sparks.
Batteries give off a gas which is
highly flammable and explosive.
. For safety, in case an explosion
does occur, wear eye protection
or shield your eyes when work-
ing near any battery. Never lean
over a battery.
. Do not let battery fluid contact
eyes, skin, fabrics, or paint be-
cause battery fluid is a corrosive
acid. If battery fluid gets on your
skin or in your eyes, immediately
flush the area with water thor-
oughly. Seek medical help imme-
diately if acid has entered theeyes.
If battery fluid is accidentally
swallowed, immediately drink a
large amount of milk or water,
and seek medical attention im-
mediately.
. To lessen the risk of sparks, remove rings, metal watchbands,
and other metal jewelry. Never
allow metal tools to contact the
positive battery terminal and any-
thing connected to it WHILE you
are at the same time in contact
with any other metallic portion of
the vehicle because a short cir-
cuit will result.
. Keep everyone including children
away from the battery.
. Charge the battery in a well-
ventilated area.
. Battery posts, terminals and re-
lated accessories contain lead
and lead compounds, chemicals
known to the State of California
to cause cancer and reproductive
harm. Batteries also contain
other chemicals known to the
State of California to cause can-
cer.
Wash hands after handling.
1) Cap
2) Upper level
3) Lower level
It is unnecessary to periodically check the
battery fluid level or periodically refill with
distilled water.
However, if the battery fluid level is below
the lower level, remove the cap. Fill to the
upper level with distilled water.
CAUTION
Never use more than 10 amperes
when charging the battery because
it will shorten battery life.

Fuses
CAUTION
Never replace a fuse with one hav-
ing a higher rating or with material
other than a fuse because serious
damage or a fire could result.
The fuses are designed to melt during an
overload to prevent damage to the wiring
harness and electrical equipment. The
fuses are located in two fuse boxes.
One is located under the instrument panel
behind the fuse box cover on the driver ’s
seat side. To remove the cover, pull it out.
The other one is housed in the engine compartment.
The spare fuses are stored in the main
fuse box cover in the engine compart-ment.
The fuse puller is stored in the main fuse
box in the engine compartment.
1) Good
2) Blown
If any lights, accessories or other electrical
controls do not operate, inspect the Maintenance and service
11-45
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11-46Maintenance and service
corresponding fuse. If a fuse has blown,
replace it.
1. Turn the ignition switch to the “LOCK ”
position and turn off all electrical acces- sories.
2. Remove the cover.
3. Determine which fuse may be blown.
Look at the back side of each fuse box
cover and refer to “Fuses and circuits ”
F 12-12.
4. Pull out the fuse with the fuse puller.
5. Inspect the fuse. If it has blown,
replace it with a spare fuse of the samerating.
6. If the same fuse blows again, this
indicates that its system has a problem.
Contact your SUBARU dealer for repairs. Main fuse
Main fuse box
The main fuses are designed to melt
during an overload to prevent damage to
the wiring harness and electrical equip-
ment. Check the main fuses if any
electrical component fails to operate (ex-
cept the starter motor) and other fuses are
good. A melted main fuse must be
replaced. Use only replacements with the
same specified rating as the melted main
fuse. If a main fuse blows after it is
replaced, have the electrical system
checked by your nearest SUBARU dealer. Installation of accessories
Always consult your SUBARU dealer
before installing fog lights or any other
electrical equipment in your vehicle. Such
accessories may cause the electronic
system to malfunction if they are incor-
rectly installed or if they are not suited for
the vehicle.

Replacing bulbs
WARNING
Bulbs may become very hot while
illuminated. Before replacing bulbs,
turn off the lights and wait until the
bulbs cool down. Otherwise, there is
a risk of sustaining a burn injury.
CAUTION
Replace any bulb only with a new
bulb of the specified wattage. Using
a bulb of different wattage could
result in a fire. For the specified
wattage of each bulb, refer to “Bulb
chart ”F 12-16.
& Headlights (models with HID headlights)
WARNING
High-intensity-discharge (HID) bulbs
are used for the low beams of the
headlights. These HID bulbs use an
extremely high voltage. To avoid the
risk of an electric shock that could
result in serious injury, observe the following precautions. .
Do not replace any headlight
bulbs (both low beam and high
beam) by yourself.
. Do not remove/restore the head-
light assemblies by yourself.
. Do not remove any headlight-
assembly components by your-self.
For replacement, contact your
SUBARU dealer.
& Headlights (models without
HID headlights)
CAUTION
Halogen headlight bulbs become
very hot while in use. If you touch
the bulb surface with bare hands or
greasy gloves, fingerprints or
grease on the bulb surface will
develop into 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, con-
sult your SUBARU dealer for proper
adjustment of the headlight aim.. It may be difficult to replace the
bulbs. Have the bulbs replaced by your
SUBARU dealer if necessary. ! Low beam light bulbs
Right-hand side
1. Use a screwdriver to undo the clips on
the air intake duct, then remove the air
intake duct (right-hand side). Maintenance and service
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