2012 SUBARU IMPREZA WRX STI radiator cap
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27
26
Getting
Started Instrument
Panel Gauges
Personalize Controls While
OperatingSafety / In Case
of Emergency Additional
Information
Impreza WRX Engine Compartment
1
1. Power Steering Fluid Reservoir Check your power steering fluid level
monthly. The power steering fluid expands
greatly as its temperature rises and
the fluid level differs according to fluid
temperature. Therefore, the reservoir tank
has two different checking ranges for
hot and cold fluid. Please refer to your
Owner’s Manual for details.
2. Air Cleaner Element This element filters intake air. Follow the
N B J O U F O B O D F H V J E F M J O F T J O Z P V S i 8 B S S B O U Z
B O E . B J O U F O B O D F w C P P L M F U 8 I F O
necessary, replace this element with a
genuine Subaru air cleaner.
3. Radiator Cap If your engine overheats, safely pull off the
road and stop your vehicle in a safe place.
/ F W F S B U U F N Q U U P S F N P W F U I F S B E J B U P S D B Q
until the engine has been shut off and has
fully cooled down. If steam is coming from
the engine compartment, turn the engine
off and move everyone away from the
vehicle until it cools. Please refer to your
Owner’s Manual for details. 4. Intercooler
The intercooler is positioned behind
the throttle body to cool intake air and
improve supercharging efficiency. (Intake
air passing through the turbocharger gets
very warm, which could result in lower
supercharging efficiency.) To prevent
damage to this important system, avoid
placing tools and other objects on
the intercooler.
5. Engine Oil Level Gauge Check the engine oil level at each fuel
stop. Pull out the dipstick, wipe it clean,
and insert it again. Pull it out and check
the oil level. If it’s below the lower level,
add oil to bring the level up to the
upper level. (Use only engine oil of the
recommended grade and viscosity.
Please refer to your Owner’s Manual
for oil recommendations and other
important details.) 6. Engine Coolant Reservoir
Check your coolant level at each
fuel stop. Observe the coolant
level on the outside of the reservoir
while the engine is cool. If the level
J T D M P T F U P o P S M P X F S U I B O o U I F
i - 0 8 w M F W F M N B S L
B E E D P P M B O U U P
U I F i ' 6 - - w M F W F M N B S L * G U I F S F T F S W F
tank is empty, remove the radiator
cap and refill as required. Please
refer to your Owner’s Manual for
details.
7. Engine Oil Filler Cap Change your oil according to
the maintenance schedule in
Z P V S i 8 B S S B O U Z B O E . B J O U F O B O D F
# P P L M F U w : P V S F O H J O F P J M N V T U C F
changed more frequently when you
drive on dusty roads, frequently
make short trips, or when you drive
in extremely cold weather.
8. Brake Fluid Reservoir Check your brake fluid level
monthly. Observe the fluid level on
the outside of the reservoir. If the
M F W F M J T C F M P X U I F i . * / w M F W F M N B S L
add the recommended brake fluid
' . 7 4 4 / P
G S F T I % 0 5 P S
C S B L F þ V J E
U P U I F i . " 9 w M F W F M
mark. Use only brake fluid from
a sealed container.
9. Battery When your vehicle does not start
due to a battery that has run down,
the vehicle may be jump-started by
connecting your battery to another
battery with jumper cables. Jump-starting is dangerous if
done incorrectly. Please refer
to your Owner’s Manual for
instructions. If you’re unsure
about how to jump-start your
vehicle, please consult a
competent mechanic.
10. Windshield Washer Tank It’s a good idea to check your washer fluid every time you stop
for fuel. If the level is low, fill the
windshield washer tank to the
neck of the reservoir with
windshield washer fluid. In cold
weather, use a freeze resistant
windshield washer fluid.
11. Main Fuse Box Your Impreza WRX has two fuse boxes. One is located under the
instrument panel, behind the
fuse box cover on the driver’s
seat side. The other is housed
in your engine compartment, as
shown here. Fuses are designed
to melt during an overload
situation in order to prevent
damage to the wiring harness and
electrical equipment. If any lights,
accessories or electrical controls
fail to operate properly, inspect
the corresponding fuse. If it has
blown, replace it in accordance
with the instructions in your
Owner’s Manual. The fuse puller
and spare fuses are located
in the main fuse box in the
engine compartment.
119
3
8
5
7
10
2
4
6
27
GetGttintigStartedInsItrument PanelGauGgesPerPsonalilizeConCtrotlslWhile OperatingSafSfetyt / /In ICasCeof EmergencyAddAdditiiional lInformation
While
Operating
Page 17 of 463
29
28
Getting
Started Instrument
Panel Gauges
Personalize Controls While
OperatingSafety / In Case
of Emergency Additional
Information
Impreza WRX STI Engine Compartment
1
1. Power Steering Fluid Reservoir Check your power steering fluid level
monthly. The power steering fluid expands
greatly as its temperature rises and
the fluid level differs according to fluid
temperature. Therefore, the reservoir tank
has two different checking ranges for
hot and cold fluid. Please refer to your
Owner’s Manual for details.
2. Air Cleaner Element This element filters intake air. Follow the
N B J O U F O B O D F H V J E F M J O F T J O Z P V S i 8 B S S B O U Z
B O E . B J O U F O B O D F w C P P L M F U 8 I F O
necessary, replace this element with a
genuine Subaru air cleaner.
3. Radiator Cap If your engine overheats, safely pull off the
road and stop your vehicle in a safe place.
/ F W F S B U U F N Q U U P S F N P W F U I F S B E J B U P S D B Q
until the engine has been shut off and has
fully cooled down. If steam is coming from
the engine compartment, turn the engine
off and move everyone away from the
vehicle until it cools. Please refer to your
Owner’s Manual for details. 4. Intercooler
The intercooler is positioned behind
the throttle body to cool intake air and
improve supercharging efficiency. (Intake
air passing through the turbocharger gets
very warm, which could result in lower
supercharging efficiency.) To prevent
damage to this important system, avoid
placing tools and other objects on
the intercooler.
5. Engine Oil Level Gauge Check the engine oil level at each fuel
stop. Pull out the dipstick, wipe it clean,
and insert it again. Pull it out and check
the oil level. If it’s below the lower level,
add oil to bring the level up to the
upper level. (Use only engine oil of the
recommended grade and viscosity.
Please refer to your Owner’s Manual
for oil recommendations and other
important details.) 6. Engine Coolant Reservoir
Check your coolant level at each
fuel stop. Observe the coolant
level on the outside of the reservoir
while the engine is cool. If the level
J T D M P T F U P o P S M P X F S U I B O o U I F
i - 0 8 w M F W F M N B S L
B E E D P P M B O U U P
U I F i ' 6 - - w M F W F M N B S L * G U I F S F T F S W F
tank is empty, remove the radiator
cap and refill as required. Please
refer to your Owner’s Manual for
details.
7. Engine Oil Filler Cap Change your oil according to
the maintenance schedule in
Z P V S i 8 B S S B O U Z B O E . B J O U F O B O D F
# P P L M F U w : P V S F O H J O F P J M N V T U C F
changed more frequently when you
drive on dusty roads, frequently
make short trips, or when you drive
in extremely cold weather.
8. Brake Fluid Reservoir Check your brake fluid level
monthly. Observe the fluid level on
the outside of the reservoir. If the
M F W F M J T C F M P X U I F i . * / w M F W F M N B S L
add the recommended brake fluid
' . 7 4 4 / P
G S F T I % 0 5 P S
C S B L F þ V J E
U P U I F i . " 9 w M F W F M
mark. Use only brake fluid from
a sealed container.
9. Battery When your vehicle does not start
due to a battery that has run down,
the vehicle may be jump-started by
connecting your battery to another
battery with jumper cables. Jump-starting is dangerous if
done incorrectly. Please refer
to your Owner’s Manual for
instructions. If you’re unsure about
how to jump-start your vehicle,
please consult a competent
mechanic.
10. Windshield Washer Tank It’s a good idea to check your washer fluid every time you stop
for fuel. If the level is low, fill the
windshield washer tank to the
neck of the reservoir with
windshield washer fluid. In cold
weather, use a freeze resistant
windshield washer fluid.
11. Main Fuse Box Your Impreza WRX STI has two fuse boxes. One is located under
the instrument panel, behind
the fuse box cover on the driver’s
seat side. The other is housed
in your engine compartment, as
shown here. Fuses are designed
to melt during an overload
situation in order to prevent
damage to the wiring harness and
electrical equipment. If any lights,
accessories or electrical controls
fail to operate properly, inspect
the corresponding fuse. If it has
blown, replace it in accordance
with the instructions in your
Owner’s Manual. The fuse puller
and spare fuses are located in
the main fuse box in the
engine compartment.
11
9
3
8
5
7
10
2
4
6
29
GetGttintigStartedInsItrument PanelGauGgesPerPsonalilizeConCtrotlslWhile OperatingSafSfetyt / /In ICasCeof EmergencyAddAdditiiional lInformation
While
Operating
Page 356 of 463
Black plate (318,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
9-12
In case of emergency
Engine overheating
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has fully cooled down.
When the engine is hot, the coolant
is under pressure. Removing the
cap while the engine is still hot
could release a spray of boiling hot
coolant, which could burn you very
seriously.
If the engine overheats, safely pull off the
road and stop the vehicle in a safe place.& If steam is coming from the
engine compartmentTurn off the engine and get everyone
away from the vehicle until it cools down.&If no steam is coming from
the engine compartment
NOTEFor details about how to check the
coolant level or how to add coolant,
refer to “Engine coolant ”F 11-12.
1. Keep the engine running at idling
speed. 2. Open the hood to ventilate the engine
compartment. Refer to
“Engine hood ”
F 11-5.
Confirm that the cooling fan is turning. If
the fan is not turning, immediately turn off
the engine and contact your authorized
dealer for repair.
3. After the engine coolant temperature
has dropped, turn off the engine.
If temperature gauge stays in the over-
heated zone, turn off the engine. Refer to
“Temperature gauge ”F 3-10.
4. After the engine has fully cooled down,
check the coolant level in the reserve
tank.
If the coolant level is below the “LOW”
mark, add coolant up to the “FULL”mark.
5. If there is no coolant in the reserve
tank, add coolant to the reserve tank.
Then remove the radiator cap and fill the
radiator with coolant.
If you remove the radiator cap from a hot
radiator, first wrap a thick cloth around the
radiator cap, then turn the cap counter-
clockwise slowly without pressing down
until it stops. Release the pressure from
the radiator. After the pressure has been
fully released, remove the cap by pressing
down and turning it.
TowingIf towing is necessary, it is best done by
your SUBARU dealer or a commercial
towing service. Observe the following
procedures for safety.
WARNING
Never tow AWD models with the
front wheels raised off the ground
while the rear wheels are on the
ground, or with the rear wheels
raised off the ground while the front
wheels are on the ground. This will
cause the vehicle to spin away due
to the operation or deterioration of
the center differential.
Page 374 of 463
Black plate (336,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
11-6
Maintenance and service
Engine compartment overview& Turbo models except STI
1) Power steering fluid reservoir
(page 11-17)
2) Manual transmission oil level gauge (MT) (page 11-15)
3) Clutch fluid reservoir (page 11-19)
4) Brake fluid reservoir (page 11-18)
5) Fuse box (page 11-37)
6) Battery (page 11-36)
7) Windshield washer tank (page 11-31)
8) Engine oil filler cap (page 11-8)
9) Engine coolant reservoir (page 11-12)
10) Engine oil level gauge (page 11-8)
11) Radiator cap (page 11-12)
12) Air cleaner case (page 11-13)
Page 375 of 463
Black plate (337,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
& STI
1) Power steering fluid reservoir
(page 11-17)
2) Clutch fluid reservoir (page 11-19)
3) Brake fluid reservoir (page 11-18)
4) Fuse box (page 11-37)
5) Battery (page 11-36)
6) Windshield washer tank (page 11-31)
7) Engine oil filler cap (page 11-8)
8) Engine coolant reservoir (page 11-12)
9) Engine oil level gauge (page 11-8)
10) Radiator cap (page 11-12)
11) Air cleaner case (page 11-13) Maintenance and service
11-7
11
Page 379 of 463
Black plate (341,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
mended engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.
Cooling system
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
. Vehicles are filled at the factory
with SUBARU Super Coolant that
does not require the first change
for 11 years/137,500 miles (11
years/220,000 km). This coolant
should not be mixed with any
other brand or type of coolant
during this period. Mixing with a
different coolant will reduce the
life of the coolant. Should it be
necessary to top up the coolant
for any reason, use only
SUBARU Super Coolant.
If the SUBARU Super Coolant is
diluted with another brand or
type, the maintenance interval is shortened to that of the mixing
coolant.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
& Cooling fan, hose and con-
nectionsYour vehicle employs an electric cooling
fan which is thermostatically controlled to
operate when the engine coolant reaches
a specific temperature.
If the radiator cooling fan does not operate
even when the engine coolant tempera-
ture gauge exceeds the normal operating
range, the cooling fan circuit may be
defective. Refer to “Temperature gauge ”
F 3-10.
Check the fuse and replace it if necessary.
Refer to “Fuses”F 11-37 and “Fuse panel
located in the engine compartment” F12-
12.
If the fuse is not blown, have the cooling
system checked by your SUBARU dealer.
If frequent addition of coolant is neces-
sary, there may be a leak in the engine
cooling system. It is recommended that
the cooling system and connections be
checked for leaks, damage, or looseness.
Maintenance and service
11-11
– CONTINUED –
11
Page 380 of 463
Black plate (342,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
11-12
Maintenance and service
& Engine coolant! Checking the coolant level
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.1) “FULL ”level mark
2) “LOW ”level markCheck the coolant level at each fuel stop.
1. Check the coolant level on the outside of the reservoir while the engine is cool.
2. If the level is close to or lower than the
“LOW
”level mark, add coolant up to the
“FULL ”level mark. If the reserve tank is
empty, remove the radiator cap and refill
as required.
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
It may be difficult to change the coolant.
Have the coolant changed by your
SUBARU dealer if necessary.
The coolant should be changed according
to the maintenance schedule in the
“Warranty and Maintenance Booklet ”.