air filter SUBARU WRX 2018 Owners Manual

(187,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
market and vehicle specifications.Multi-function display
1) Clock
2) Climate control (displayed only when the
ignition switch is in the“ON”position)
3) Outside temperature
4) Information screen
NOTEThe outside temperature indicator
shows the temperature around the
sensor. Therefore, the temperature in-
dication may differ from the actual
outside air temperature.&Welcome screenWhen the driver’s door is closed, the
welcome screen will appear for a short
time.NOTE.The welcome screen will disappear
when the ignition switch is turned to the
“ON”position while the welcome
screen is displayed.
.You can set the welcome screen to
on or off. For details, refer to“Bypass
screen setting”F3-58.
.For a certain period of time after the
welcome screen has once appeared, it
may not appear again even when the
driver’s door is closed again. This does
not indicate a malfunction.
&Self-check screenWhen the ignition switch is turned to the
“ON”position, the vehicle self-check will
be performed. The screens corresponding
to the following items will appear one after
another for several seconds each.1) Inspection and maintenance: Checks the
interval of inspection and maintenance.
2) Engine oil: Checks the interval of engine
oil replacement.
3) Oil filter: Checks the interval of oil filter
replacement.
4) Tires: Checks the interval of tire rotation.When the checks are performed, the color
of the icon corresponding to the checked
item will turn as follows:
.If the checked item has no notifications,
it turns green.
.If the checked item has any mainte-
–CONTINUED–
Instruments and controls/Multi-function display (color LCD)
3-45
3

(231,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Ventilator control....................................................4-2
Center and side ventilators.................................... 4-2
Climate control panel.............................................4-3
Type A ................................................................... 4-3
Type B ................................................................... 4-4
Automatic climate controloperation..................... 4-5
Sensors................................................................. 4-5
Manual climate controloperation..........................4-6
Airflow mode selection........................................... 4-6
Temperature control............................................... 4-7
Fan speed control.................................................. 4-8
Air conditioner control........................................... 4-8
Air inlet selection................................................... 4-8
Defrosting................................................................4-9Operating tips for heater andair conditioner...... 4-9
Cleaning ventilation grille.......................................4-9
Efficient cooling after parking in direct sunlight ......4-9
Lubrication oil circulation in the refrigerant
circuit..................................................................4-9
Checking air conditioning system before summer
season................................................................4-9
Cooling and dehumidifying in high humidity and
low temperature weather conditions...................4-10
Air conditioner compressor shut-off when engine
is heavily loaded................................................4-10
Refrigerant for your climate control system..........4-10
Air filtration system..............................................4-10
Replacing a cabin air filter.................................... 4-11
Climate control
4

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Cooling and dehumidifying in
high humidity and low tem-
perature weather conditionsUnder certain weather conditions (high
relative humidity, low temperatures, etc.) a
small amount of water vapor emission
from the air outlets may be noticed. This
condition is normal and does not indicate
any problem with the air conditioning
system.&Air conditioner compressor
shut-off when engine is
heavily loadedTo improve acceleration and gas mileage,
the air conditioner compressor is designed
to temporarily shut off during air condi-
tioner operation whenever the accelerator
is fully depressed such as during rapid
acceleration or when driving up a steep
incline.
&Refrigerant for your climate
control system1) Air conditioner labelYour air conditioner uses ozone friendly
refrigerant HFC134a (as shown on the air
conditioner label). Therefore, the method
of adding, changing or checking the
refrigerant is different from the method
for CFC12 (freon). Consult your SUBARU
dealer for service. Repairs needed as a
result of using the wrong refrigerant are not
covered under warranty.
Air filtration systemYour vehicle’s air conditioning system is
equipped with an air filtration system.
Replace the cabin air filter element ac-
cording to the replacement schedule found
in the“Warranty and Maintenance Book-
let”. This schedule should be followed to
maintain the filter’s dust collection ability.
Under extremely dusty conditions, the filter
should be replaced more frequently. Have
your filter checked or replaced by your
SUBARU dealer. For replacement, use
only a genuine SUBARU air filter kit.
CAUTION
Contact your SUBARU dealer if the
following occurs, even if it is not yet
time to change the filter:
.Reduction of the airflow through
the vents.
.Windshield gets easily fogged or
misted.NOTEThe filter can influence the air condi-
tioning, heating and defroster perfor-
mance if not properly maintained.
Climate control/Air filtration system
4-10

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Replacing a cabin air filter1. Remove the glove box.NOTEWe recommend that you take measures
to protect the center console with
masking tape first, so that you avoid
scratching the center console with the
glove box.
(1) Open the glove box.
(2) Remove the damper shaft from the
glove box.
1) Stopper(3) Push both sides of the glove box
inside to unlock the stoppers and then
pull down the glove box as far as it will
go.(4) Pull out the glove box horizontallyand remove the hinge portion. When
doing this, be careful not to damage
the hinge.
2. Remove the cabin air filter according to
the following procedure in order to prevent
dust on the air cleaner from falling to the
inside of its housing.
(1) Push in the four stoppers to unlock,
and then slowly pull out the filter 4 in
(10 cm) from the housing.
(2) Completely pull out the filter by
gently tilting the front side of the filter
downward.
–CONTINUED–
Climate control/Air filtration system
4-11
4

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
3. Replace the cabin air filter element
with a new one.
CAUTION
The arrow mark on the filter must
point UP.
4. Reinstall the glove box, and connect
the damper shaft.
5. Close the glove box.
Climate control/Air filtration system
4-12

(499,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Maintenance schedule.......................................... 11-3
Maintenance precautions..................................... 11-3
Before checking or servicing in the engine
compartment...................................................... 11-4
When checking or servicing in the engine
compartment...................................................... 11-5
When checking or servicing in the engine
compartment while the engine is running............ 11-5
Maintenance tips................................................... 11-6
Removing and reinstalling clips............................ 11-6
Engine hood.......................................................... 11-9
Engine compartment overview.......................... 11-11
STI...................................................................... 11-11
Except STI.......................................................... 11-12
Engine oil............................................................. 11-13
Engine oil consumption...................................... 11-13
Checking the oil level.......................................... 11-13
Changing the oil and oil filter.............................. 11-15
Recommended grade and viscosity..................... 11-15
Synthetic oil........................................................ 11-16
Cooling system................................................... 11-16
Cooling fan, hose and connections..................... 11-17
Engine coolant.................................................... 11-17
Air cleaner element............................................. 11-18
Replacing the air cleaner element........................ 11-19
Spark plugs......................................................... 11-21
Recommended spark plugs................................. 11-21
Drive belts........................................................... 11-21Manual transmission oil......................................11-22
Recommended grade and viscosity..................... 11-22
Continuously variable transmission fluid..........11-22
Front differential gear oil (CVT models) and
rear differential gear oil....................................11-23
Recommended grade and viscosity..................... 11-23
Power steering fluid (STI)...................................11-23
Checking the fluid level...................................... 11-23
Recommended fluid............................................ 11-24
Brake fluid............................................................11-24
Checking the fluid level...................................... 11-24
Recommended brake fluid.................................. 11-25
Clutch fluid (MT models).....................................11-25
Checking the fluid level...................................... 11-25
Recommended clutch fluid................................. 11-26
Brake booster......................................................11-26
Brake pedal..........................................................11-27
Checking the brake pedal free play..................... 11-27
Checking the brake pedal reserve distance ......... 11-27
Clutch pedal (MT models)...................................11-27
Checking the clutch function .............................. 11-27
Checking the clutch pedal free play.................... 11-28
Hill start assist system.......................................11-28
Replacement of brake pad andlining................11-28
Breaking-in of new brake pads (models with
electronic parking brake system)..................... 11-29
Breaking-in of new brake pads and linings
(models without electronic parking brake
system)........................................................... 11-29
Maintenance and service
11

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&When checking or servicing
in the engine compartment
CAUTION
.Do not contact the drive belt
cover while checking the compo-
nents in the engine compartment.
Doing so may cause your hand to
slip off the cover and result in an
unexpected injury.
.Do not touch the oil filter until the
engine has cooled down comple-
tely. Doing so may result in a burn
or other injury. Note that the oil
filter becomes very hot when the
engine is running and remains
hot for some time after the engine
has stopped.
.Do not apply force on the fender
insulator by placing your handson it, etc. Deformation of the
insulator and its mount may oc-
cur.
&When checking or servicing
in the engine compartment
while the engine is running
WARNING
A running engine can be dangerous.
Keep your fingers, hands, clothing,
hair and tools away from the cooling
fan, drive belt and any other moving
engine parts. Removing rings,
watches and ties is advisable.
Maintenance and service/Maintenance precautions
11-5
11

(510,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Except STI
1) Brake fluid reservoir/Clutch fluid reservoir
(MT models) (page 11-24)
2) Fuse box (page 11-42)
3) Battery (page 11-41)
4) Windshield washer tank (page 11-38)
5) Engine oil filler cap (page 11-13)
6) Engine coolant reservoir (page 11-17)
7) Radiator cap (page 11-17)
8) Engine oil filter (page 11-15)
9) Engine oil level gauge (page 11-13)
10) Air cleaner case (page 11-18)
Maintenance and service/Engine compartment overview
11-12

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Except STI
1) Fill up to this level3. 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.
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.
Have the coolant changed according to the
maintenance schedule in the“Warranty
and Maintenance Booklet”.
Air cleaner element
WARNING
Do not operate the engine with the
air cleaner element removed. The air
cleaner element not only filters in-
take air but also stops flames if the
engine backfires. If the air cleaner
element is not installed when the
engine backfires, you could be
burned.
CAUTION
When replacing the air cleaner ele-
ment, use a genuine SUBARU air
cleaner element. If it is not used,
there is the possibility of causing a
negative effect to the engine.
The air cleaner element functions as a filter
screen. When the element is perforated or
removed, engine wear will be excessive
and engine life shortened.
It is not necessary to clean or wash the air
cleaner element.
Maintenance and service/Air cleaner element
11-18