engine SUBARU WRX 2018 Repair Manual

(239,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
DefrostingPerform either of the following operations
to defrost or to dehumidify the windshield
and front door windows.
.Select the“
”mode by pressing the
defroster button (both types A and B)
.Select the“”mode by turning the
airflow mode selection dial (type A)
.Select the“”mode by pressing the
airflow mode selection button (type B)
NOTEWhen the“
”or“
”mode is se-
lected, the air conditioner compressor
operates automatically regardless of
the position of the air conditioner
button to defrost the windshield more
quickly. However the indicator on the
air conditioner button will not illumi-
nate. At the same time, the air inlet
selection is automatically set to the
outside air mode. After defrosting the
windshield by pressing the defroster
button“
”, pressing the button again
returns the system to the setting that
had been selected before the defroster
was activated.
Operating tips for heater and
air conditioner&Cleaning ventilation grille1) Front ventilation inlet grilleAlways keep the front ventilation inlet grille
free of snow, leaves, or other obstructions
to ensure efficient heating and defrosting.
Since the condenser is located in front of
the radiator, this area should be kept clean
because cooling performance is impaired
by any accumulation of insects and leaves
on the condenser.
&Efficient cooling after parking
in direct sunlightAfter parking in direct sunlight, drive with
the windows open for a few minutes to
allow outside air to circulate into the
heated interior. This results in quicker
cooling by the air conditioner. Keep the
windows closed during the operation of the
air conditioner for maximum cooling effi-
ciency.&Lubrication oil circulation in
the refrigerant circuitOperate the air conditioner compressor at
a low engine speed (at idle or low driving
speeds) a few minutes each month during
the off-season to circulate its oil.&Checking air conditioning
system before summer sea-
sonCheck the air conditioner unit for refriger-
ant leaks, hose conditions, and proper
operation each spring. Have the air con-
ditioning system checked by your
SUBARU dealer.
–CONTINUED–
Climate control/Defrosting
4-9
4

(240,1)
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

(246,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Antenna&Roof antennaThe shark-fin type roof antenna is installed
in the center at the rear of the roof.
Audio setYour vehicle may be equipped with one of
the following audio sets. Refer to the
pages indicated in this section for operat-
ing details.
CAUTION
.Always consult your SUBARU
dealer before installing a citizen
band radio or other transmitting
device in your vehicle. Such
devices may cause the electronic
control system to malfunction if
they are incorrectly installed or if
they are not suited for the vehi-
cle.
.To prevent the battery from being
discharged, do not leave the
audio/visual system on when the
engine is not running.NOTE.If a cell phone is placed near the
audio set, it may cause the audio set to
emit noise when the phone receives
calls. This noise does not indicate an
audio set malfunction. Note that a cell
phone should not be placed near the
audio set..Some functions may not be available
depending on the market and specifi-
cations of your vehicle.
.The images shown in this Owner’s
Manual are sample images. The actual
images may vary depending on the
market and specifications of your ve-
hicle.
Audio/Antenna
5-2

(258,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Basic information before use
WARNING
When the vehicle is stopped with the
engine running, always apply the
parking brake for safety. Failure to
do so may result in loss of control of
your vehicle and cause an accident
or serious injury.
CAUTION
.To prevent damaging the screen,
touch the screen keys with your
finger lightly.
.Wipe off fingerprints using a
glass cleaning cloth. Do not use
chemical cleaners to clean the
screen, as they may damage the
touch screen.!Touch screen gestures
Operations are performed by touching the touch screen directly with your finger.
Operation method Outline Main use
Touch
Quickly touch and release
once.Changing and selecting various
settingsDrag*
Touch the screen with your
finger, and move the screen
to the desired position.Scrolling the listsFlick*
Quickly move the screen by
flicking with your finger.Scrolling the main screen page
*: The above operations may not be performed on all screens.
NOTEThere may be a delayed response to flick operation that are performed at high
altitudes.
Audio/Audio set
5-14

(261,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
first two connected devices will be
recognized.&Basic operationThis section describes some of the basic
features of the audio/visual system. Some
information may not pertain to your sys-
tem.
Your audio/visual system works when the
ignition switch is turned to the“ACC”or
“ON”position.
CAUTION
To prevent the battery from being
discharged, do not leave the audio/
visual system on longer than neces-
sary when the engine is not running.NOTESome functions can also be operated
by using the voice command system.
For details, refer to“Voice command
system”F5-79.!Turning the system on and off
Press the power/VOLUME knob to turn the
audio/visual system on and off. When the
system turns on, the mode that was in use
the last time the system was turned off will
be displayed. Press and hold the knob to
turn the display off.
Turn this knob to adjust the volume.!Selecting an audio source
1. Press the AUDIO/TUNE knob.
2. Select the desired source.Example: Source select screen
–CONTINUED–
Audio/Audio set
5-17
5

(268,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
!Display settings
Touch the
tab to set display.
Item Function
Day/Night
ModeThe“Auto”,“Day”or“Night”key
can be selected on the pop-up
screen.
When the“Auto”key is selected,
the screen changes to day or
night mode depending on the
position of the headlight switch.
BrightnessTouch“+”or“”to adjust the
brightness.
NOTE.When the screen is viewed through
polarized sunglasses, a rainbow pat-
tern may appear on the screen due to
optical characteristics of the screen. If
this is disruptive, please operate thescreen without polarized sunglasses.
.If the screen is set to“Day”mode
with the headlight switch turned on,
this condition is memorized even with
the engine turned off.
!How to adjust the rear view image
In the camera display, the brightness, tint,
color and black level of the screen can be
adjusted.
1. Depress the brake pedal fully and stop
the vehicle.
2. While the vehicle is stopped, set the
shift lever (MT models) or select lever
(CVT models) in the“R”position, and then
touch the display.
3. Touch the“Display Adjustment”key.
4. Touch the items to adjust the rear
camera screen.
Camera display
WARNING
When adjusting camera display
screen, make sure to depress the
brake pedal fully to avoid the vehicle
from moving. Failure to do so may
lead to a serious accident.NOTEThe camera display can be accessed
when the rear camera monitor is dis-
played.
Audio/Audio set
5-24

(342,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Sun visor extension plate
(models with the EyeSight
system)With the sun visor positioned over the side
window, you can use the sun visor exten-
sion plate to prevent glare through the gap
between the sun visor and center pillar. To
use the extension plate, pull it toward the
rear of the vehicle. When you have
finished using it, stow it by pushing it
toward the front of the vehicle.
CAUTION
Do not pull out the extension plate
with the sun visor positioned over
the windshield. The extension plate
would obstruct your view of the rear
view mirror.
&Vanity mirror with light
CAUTION
Keep the vanity mirror cover closed
while the vehicle is being driven to
avoid being temporarily blinded by
the glare of bright light.To use the vanity mirror, swing down the
sun visor and open the vanity mirror cover.
The light beside the vanity mirror illumi-
nates when the mirror cover is opened.NOTEDo not use the vanity mirror light for a
long period of time while the engine is
not running. Doing so can cause bat-
tery discharge.
Interior equipment/Sun visors
6-4

(347,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
below the climate control dials and in the
center console. Electrical power (12V DC)
from the battery is available at any of the
outlets when the ignition switch is in either
the“ACC”or“ON”position.
You can use an in-vehicle electrical appli-
ance by connecting it to an outlet.
The maximum power rating of an appli-
ance that can be connected is120W.Do
not use an appliance which exceeds the
indicated wattage for each outlet.
When using appliances connected to two
or more outlets simultaneously, the total
power consumed by them must not ex-
ceed 120W.
CAUTION
.Do not attempt to use a cigarette
lighter in the accessory power
outlets.
.Do not place any foreign objects,
especially metal ones such as
coins or aluminum foil, into the
accessory power outlet. That
could cause a short circuit. Al-
ways put the cap on the acces-
sory power outlet when it is not in
use.
.Use only electrical appliances
which are designed for 12V DC.
The maximum power rating of anappliance that can be connected
is 120W. Do not use an appliance
which exceeds the indicated wat-
tage for each outlet.
When using appliances con-
nected to two or more outlets
simultaneously, the total power
consumed by them must not
exceed 120W. Overloading the
accessory power outlet can
cause a short circuit. Do not use
double adapters or more than
one electrical appliance.
.If the plug on your electric appli-
ance is either too loose or too
tight for the accessory power
outlet, this can result in a poor
contact or cause the plug to get
stuck. Only use plugs that fit
properly.
.Use of an electric appliance in the
accessory power outlet for a long
period of time while the engine is
not running can cause battery
discharge.
.Before driving your vehicle, make
sure that the plug and the cord on
your electrical appliance will not
interfere with your shifting gears
and operating the accelerator
and brake pedals. If they do, donot use the electrical appliance
while driving.
&Use with a cigarette lighter (if
equipped)To use the accessory power outlet as a
cigarette lighter socket, purchase the
cigarette lighter plug, which is an optional
accessory. A cigarette lighter plug is
available from your SUBARU dealer.
The cigarette lighter operates only when
the ignition switch is in the“ON”or“ACC”
position.
To use the cigarette lighter, push in the
knob and wait a few moments. It will
automatically spring up when ready for
use.
WARNING
To avoid being burned, never grasp
the lighter by the end with the
heating element. Doing so could
result in injury and could also da-
mage the heating element.
–CONTINUED–
Interior equipment/Accessory power outlets
6-9
6

(351,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Rear view cameraA rear view camera is attached to the trunk
lid. When the ignition switch is“ON”and
the shift lever (MT models) or select lever
(CVT models) is set to“R”, the rear view
camera automatically displays the rear
view image behind the vehicle on the
monitor of the navigation system or the
audio display.
WARNING
.Since the rear view camera uses a
wide-angle lens, the image on the
monitor is different from the
actual view in terms of distance.
.Since the range and field of view
of the image on the monitor islimited, you should always check
the rear view and the surrounding
area with your eyes and mirrors,
and move backward at a slow
speed. Moving backward only by
checking the rear view image
from the camera could cause an
accident.
.Do not disassemble or modify the
camera, switch or wiring. If
smoke comes out or you smell a
strange odor, stop using the rear
view camera immediately. Con-
tact your SUBARU dealer for an
inspection. Continued use may
result in accident, fire or electric
shock.
CAUTION
.When washing your vehicle with
a high-pressure washer, do not
allow water to contact the camera
directly. Entry of water into the
camera lens may result in con-
densation, malfunction, fire or
electric shock.
.Since the camera is a precision
device, do not subject it to strong
impacts. Otherwise, malfunction,
fire or electric shock may occur..If mud or snow sticks to or is
frozen on the camera, you must
be very careful when removing it.
Otherwise, damage to the camera
maycauseafireorelectric
shock. Pour water or lukewarm
water over the camera to remove
mud and ice, and wipe it with a
soft, dry cloth.
.Do not put a flame close to the
camera or wiring. Otherwise, da-
mage or fire may occur.
.When replacing the fuse, be sure
to use a fuse with the specified
rating. Use of a fuse with a
different rating may result in a
malfunction.
.Do not use the rear view camera
for a long time while the engine is
not operating. Otherwise, the ve-
hicle battery may become com-
pletely discharged.
NOTE.Do not wipe the camera with alcohol,
benzine or paint thinner. Otherwise,
discoloration may occur. To remove
contamination, wipe the camera with a
cloth moistened with a diluted neutral
detergent and then wipe it with a soft,
dry cloth.
–CONTINUED–
Interior equipment/Rear view camera
6-13
6

(363,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Fuel..........................................................................7-3
Fuel requirements.................................................. 7-3
Fuel filler lid and cap............................................. 7-5
State emission testing (U.S.only).........................7-7
Preparing to drive...................................................7-8
Starting and stopping theengine..........................7-9
General precautions when starting/stopping
engine................................................................. 7-9
Models without push-button start systems............7-10
Models with push-button start systems ................. 7-11
Remote engine start system (dealer option)...........7-14
Manual transmission............................................7-16
Shifting speeds.....................................................7-17
Driving tips...........................................................7-18
Driver’s Control Center Differential
(C.DIFF/DCCD) (STI)...........................................7-18
To change mode of driver’s control center
differential..........................................................7-19
Auto mode............................................................7-20
Manual mode........................................................7-21
Temporary release................................................7-22
Continuously variable transmission....................7-23
Select lever...........................................................7-24
Selection of manual mode.....................................7-25
Shift lock function.................................................7-27
Driving tips...........................................................7-28
SI-DRIVE (if equipped)..........................................7-28
Intelligent (I) mode................................................7-28
Sport (S) mode.....................................................7-29
Sport Sharp (S#) mode..........................................7-29SI-DRIVE switch....................................................7-30
Limited slip differential (LSD)(STI).....................7-31
Power steering......................................................7-31
STI .......................................................................7-31
Except STI............................................................7-32
Braking..................................................................7-33
Braking tips..........................................................7-33
Brake system.......................................................7-33
Disc brake pad wear warning indicators................7-34
High performance brake system (STI)...................7-34
Red caliper with sports brake pad (if equipped) .... 7-34
ABS (Anti-lock BrakeSystem).............................7-35
ABS self-check.....................................................7-35
ABS warning light.................................................7-35
Electronic Brake Force Distribution (EBD)
system................................................................7-36
Steps to take if EBD system malfunctions .............7-36
Vehicle Dynamics Controlsystem......................7-37
Vehicle Dynamics Control system monitor ............7-39
Vehicle Dynamics Control OFF switch...................7-39
Tire pressure monitoring system (TPMS)
(U.S.-spec. models)...........................................7-40
Parking your vehicle............................................7-42
Parking brake (models without electronic parking
brake system)....................................................7-42
Electronic parking brake (models with electronic
parking brake system).......................................7-43
Parking tips..........................................................7-45
Auto Vehicle Holdfunction..................................7-46
To turn on/off the Auto Vehicle Hold function........7-47
To operate the Auto Vehicle Hold function ............7-48
Starting and operating
7