transmission SUBARU WRX 2018 Owner's Manual

(450,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
tion, brand and load range and you should
never mix radial, belted bias or bias tires
since this may result in dangerous hand-
ling characteristics. When you choose a
tire, make sure that there is enough
clearance between the tire and vehicle
body.
Remember to drive with care at all times
regardless of the type of tires on your
vehicle.&Tire chains
CAUTION
You cannot use tire chains on your
vehicle because of the lack of clear-
ance between the tires and vehicle
body.NOTEEven though you cannot use tire
chains, use of another type of traction
device (such as spring chains) may be
acceptable if use on your vehicle is
recommended by the device manufac-
turer, taking into account tire size and
road conditions. Follow the device
manufacturer’s instructions, especially
regarding maximum vehicle speed.
To help avoid damage to your vehicle,drive slowly, readjust or remove the
device if it is contacting your vehicle,
and do not spin your wheels. Damage
caused to your vehicle by use of a
traction device is not covered under
warranty.
Make certain that any traction device
you use is an SAE class S device, and
use it on the front wheels only. Always
use the utmost care when driving with a
traction device. Overconfidence be-
cause you are using a traction device
could easily lead to a serious accident.
&Rocking the vehicleIf you must rock the vehicle to free it from
snow, sand, or mud, depress the accel-
erator pedal slightly and move the shift
lever/select lever back and forth between
“1”/“D”and“R”repeatedly. Do not race the
engine. For the best possible traction,
avoid spinning the wheels when trying to
free the vehicle.
When the road surface is extremely
slippery, you can obtain better traction by
starting the vehicle with the transmission in
2nd than in 1st (MT models and CVT
models).
If your vehicle is a CVT model, for
information about holding the transmissionin the 2nd position, refer to“Selection of
manual mode”F7-25.
Driving tips/Winter driving
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Towing with all wheels on the
ground1. Release the parking brake and put the
transmission in the“N”/neutral position.
2. The ignition switch should be in the
“ON”position while the vehicle is being
towed.
3. Take up slack in the towline slowly to
prevent damage to the vehicle.
WARNING
.Never turn the ignition switch to
the“LOCK”/“OFF”position while
the vehicle is being towed be-
cause the steering wheel and the
direction of the wheels will be
locked..Remember that the brake booster
and power steering do not func-
tion when the engine is not run-
ning. Because the engine is
turned off, it will take greater
effort to operate the brake pedal
and steering wheel.
CAUTION
.If transmission failure occurs,
transport your vehicle on a flat-
bed truck.
.For CVT models, the traveling
speed must be limited to less
than 20 mph (32 km/h) and the
traveling distance to less than 31
miles (50 km). For greater speeds
and distances, transport your
vehicle on a flat-bed truck.
Electronic parking brake–if
the electronic parking brake
cannot be released (models
with electronic parking brake
system)Contact your SUBARU dealer and have
your SUBARU dealer release the electro-
nic parking brake.
In case of emergency/Electronic parking brake–if the electronic parking brake cannot be released (models with electronic parking
brake system)
9-25
9

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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

(501,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Maintenance scheduleU.S. models
The scheduled maintenance items re-
quired to be serviced at regular intervals
are shown in the“Warranty and Mainte-
nance Booklet”. For details, read the
separate“Warranty and Maintenance
Booklet”.
Canada models
The scheduled maintenance items re-
quired to be serviced at regular intervals
are shown in the“Warranty and Service
Booklet”. For details, read the separate
“Warranty and Service Booklet”.
Other models
Some items of your vehicle are required to
be serviced at scheduled intervals. For
details about your maintenance schedule,
read the separate“Warranty and Main-
tenance Booklet”.NOTEYou can set a reminder to be displayed
when a scheduled maintenance item is
almost due. For details, refer to“Main-
tenance settings”F3-59.
Maintenance precautionsWhen maintenance and service are re-
quired, it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service by
yourself, you should familiarize yourself
with the information provided in this sec-
tion on general maintenance and service
for your SUBARU.
Incorrect or incomplete service could
cause improper or unsafe vehicle opera-
tion. Any problems caused by improper
maintenance and service performed by
you are not eligible for warranty coverage.
WARNING
.Testing of an All-Wheel Drive
model must NEVER be performed
on a single two-wheel dynam-
ometer or similar apparatus. At-
tempting to do so will result in
transmission damage and in un-
controlled vehicle movement and
may cause an accident or injuries
to persons nearby.
.Always select a safe area when
performing maintenance on your
vehicle.
.Always be very careful to avoidinjury when working on the vehi-
cle. Remember that some of the
materials in the vehicle may be
hazardous if improperly used or
handled, for example, battery
acid.
.Your vehicle should only be ser-
viced by persons fully competent
to do so. Serious personal injury
may result to persons not experi-
enced in servicing vehicles.
.Always use the proper tools and
make certain that they are well
maintained.
.Never get under the vehicle sup-
ported only by a jack. Always use
safety stands to support the
vehicle.
.Never keep the engine running in
a poorly ventilated area, such as
a garage or other closed areas.
.Do not smoke or allow open
flames around the fuel or battery.
This will cause a fire.
.Because the fuel system is under
pressure, replacement of the fuel
filter should be performed only
by your SUBARU dealer.
.Wear adequate eye protection to
guard against getting oil or fluids
–CONTINUED–
Maintenance and service/Maintenance schedule
11-3
11

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Engine oil
CAUTION
.If the level gauge is not pulled out
easily, twist the level gauge right
and left, then pull it out. Other-
wise, you may be injured acci-
dentally straining yourself.
.Use only engine oil with the
recommended grade and vis-
cosity.
.Be careful not to spill engine oil
when adding it. If oil touches the
exhaust pipe, it may cause a bad
smell, smoke, and/or a fire. If
engine oil gets on the exhaust
pipe, be sure to wipe it off.&Engine oil consumptionSome engine oil will be consumed while
driving. The rate of consumption can be
affected by such factors as transmission
type, driving style, terrain and tempera-
ture. Under the following conditions, oil
consumption can be increased and thus
require refilling between maintenance in-
tervals:
.When the engine is new and within the
break-in period.When the engine oil is of lower quality
.When the incorrect oil viscosity is used
.When engine braking is employed
(repeatedly)
.When the engine is operated at high
engine speeds (for extended periods of
time)
.When the engine is operated under
heavy loads (for extended periods of time)
.When the engine idles for extended
periods of time
.When the vehicle is operated in stop
and go and/or heavy traffic situations
.When the vehicle is used under severe
thermal conditions
.When the vehicle accelerates and
decelerates frequently
Under these or similar conditions, you
should check your oil at least every 2nd
fuel fill-up and change your engine oil more
frequently. Different drivers in the same
car may experience different results. If
your oil consumption rate is greater than
expected, contact your authorized
SUBARU retailer who may perform a test
under controlled conditions.
&Checking the oil level1. Park the vehicle on a level surface and
stop the engine. If you check the oil level
just after stopping the engine, wait a few
minutes for the oil to drain back into the oil
pan before checking the level.STI
1) Oil level gauge
2) Oil filler cap
–CONTINUED–Maintenance and service/Engine oil
11-13
11

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
belt and if there is any looseness,
cracks, wear or unusual noise on the
front side belt, contact your
SUBARU dealer.
Continuing to use the vehicle with
the belt outside of the specification
may cause the engine to malfunc-
tion and the above components to
malfunction.
To check the deflection of the front side
belt, place a straightedge (ruler) across
two adjacent pulleys (alternator pulley and
crank pulley) and apply a force of 22 lbf (98
N, 10 kgf) midway between the pulleys by
using a spring scale. The belt deflection
should be the amount specified. If the front
side belt is loose, cracked or worn, contact
your SUBARU dealer.
in (mm)
Deflection
New belt
Used belt
A0.28–0.35
(7.0–9.0)0.35–0.43
(9.0–11.0)
The rear side belt is a stretch-type belt,
therefore the deflection does not need to
be checked. If there are cracks or wear
confirmed on the belts and a squeaking
noise is heard from them, contact your
SUBARU dealer.
Manual transmission oilIt is not necessary to check the transmis-
sion oil level. Check that there are no
cracks, damage or leakage. However,
have the oil inspected by your SUBARU
dealer according to the maintenance
schedule in the“Warranty and Mainte-
nance Booklet”. Consult your SUBARU
dealer for details.&Recommended grade and
viscosityEach oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
“Manual transmission, front differential
and rear differential gear oil”F12-6.
Continuously variable trans-
mission fluidIt is not necessary to check the transmis-
sion fluid level. Check that there are no
cracks, damage or leakage. However,
have the fluid inspected by your SUBARU
dealer according to the maintenance
schedule in the“Warranty and Mainte-
nance Booklet”. Consult your SUBARU
dealer for details.
Maintenance and service/Manual transmission oil
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Front differential gear oil
(CVT models) and rear differ-
ential gear oilIt is not necessary to check the gear oil
level. Check that there are no cracks,
damage or leakage. However, have the oil
inspected by your SUBARU dealer ac-
cording to the maintenance schedule in
the“Warranty and Maintenance Booklet”.
Consult your SUBARU dealer for details.&Recommended grade and
viscosityEach oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
“Manual transmission, front differential
and rear differential gear oil”F12-6.
CAUTION
Using a differential gear oil other
than the specified oil may cause a
decline in vehicle performance.
Power steering fluid (STI)&Checking the fluid levelThe power steering fluid expands greatly
as its temperature rises; the fluid level
differs according to fluid temperature.
Therefore, the reservoir tank has two
different checking ranges for hot and cold
fluids.
Check the power steering fluid level
monthly.
1. Park the vehicle on a level surface, and
stop the engine.
2. Check the fluid level of the reservoir
tank.
When the fluid is hot after the vehicle has
been run: Check that the oil level is
between“HOT MIN”and“HOT MAX”onthe surface of the reservoir tank.
When the fluid is cool before the vehicle is
run: Check that the oil level is between
“COLD MIN”and“COLD MAX”on the
surface of the reservoir tank.
3. If the fluid level is lower than the
applicable“MIN”line, add the recom-
mended fluid as necessary to bring the
level between the“MIN”and“MAX”line.
If the fluid level is extremely low, it may
indicate possible leakage. Consult your
SUBARU dealer for an inspection.
WARNING
Be careful not to burn yourself
because the fluid may be hot.
CAUTION
.When you add power steering
fluid, use only clean fluid, and
be careful not to allow any dirt
into the tank. And never use
different brands together.
.Be careful not to spill power
steering fluid when adding it. If
power steering fluid touches the
exhaust pipe, it may cause a bad
smell, smoke, and/or a fire. If
power steering fluid gets on the
–CONTINUED–
Maintenance and service/Front differential gear oil (CVT models) and rear differential gear oil
11-23
11

(525,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Brake pedalCheck the brake pedal free play and
reserve distance according to the main-
tenance schedule in the“Warranty and
Maintenance Booklet”.&Checking the brake pedal free
play1) 0.02–0.11 in (0.5–2.7 mm)Stop the engine and firmly depress the
brake pedal several times. Lightly pull the
brake pedal up with one finger to check the
free play with a force of less than 2 lbf (10
N, 1 kgf).
If the free play is not within proper
specification, contact your SUBARU deal-
er.
&Checking the brake pedal re-
serve distance1) More than 2.56 in (65 mm)Depress the pedal with a force of approxi-
mately 66 lbf (294 N, 30 kgf) and measure
the distance between the upper surface of
the pedal pad and the floor.
When the measurement is smaller than
the specification, or when the pedal does
not operate smoothly, contact with your
SUBARU dealer.
Clutch pedal (MT models)Check the clutch pedal free play according
to the maintenance schedule in the“War-
ranty and Maintenance Booklet”.&Checking the clutch functionCheck the clutch engagement and disen-
gagement.
1. With the engine idling, check that there
are no abnormal noises when the clutch
pedal is depressed, and that shifting into
1st or reverse feels smooth.
2. Start the vehicle by releasing the pedal
slowly to check that the engine and
transmission smoothly couple without
any sign of slippage.
–CONTINUED–
Maintenance and service/Brake pedal
11-27
11

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Specifications........................................................12-2
Dimensions...........................................................12-2
Engine..................................................................12-3
Fuel......................................................................12-3
Engine oil.............................................................12-4
Manual transmission, front differential and rear
differential gear oil..............................................12-6
Fluids...................................................................12-7
Engine coolant......................................................12-7
Electrical system..................................................12-8Tires.....................................................................12-8
Temporary spare tires...........................................12-9
Brake disc............................................................12-9
Fuses and circuits..............................................12-10
Fuse panel located in the passenger
compartment...................................................12-10
Fuse panel located in the engine compartment ... 12-12
Bulb chart............................................................12-14
Vehicle identification..........................................12-16
Specifications
12

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Manual transmission, front differential and rear differential gear oilOil Manual transmission oilFront differential gear oil (CVT
models)Rear differential gear oil
Oil
gradeSTI.API classification GL-5
(75W-90)*
3
—
API classification GL-5
Except STI.SUBARU Extra MT*
3
.API classification GL-5
(75W-90)*
4
.SUBARU Extra MT*
3
.API classification GL-5
(75W-90)
SAE viscosity No. and
applicable tempera-
ture——.75W-90*
.90
*: recommended
Oil ca-
pacity*
1
STI 4.3 US qt (4.1 liters, 3.6 Imp qt)—1.1 US qt (1.0 liter, 0.9 Imp qt)
Except STI 3.5 US qt (3.3 liters, 2.9 Imp qt) 1.5 US qt (1.4 liters, 1.2 Imp qt) 0.8 US qt (0.8 liters, 0.7 Imp qt)
Remarks*2
“Manual transmission oil”F11-22
“Front differential gear oil (CVT
models) and rear differential gear
oil”F11-23
“Front differential gear oil (CVT models) and rear differential
gear oil”F11-23
*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. Check the oil level after refilling the gearbox with oil.
*2: For more details about maintenance and service, refer to the indicated section.
*3: The vehicle is filled at the factory with this oil.
*4: You may use this type of manual transmission oil. However, using this type of oil will detract from driveability and fuel efficiency.
Specifications/Specifications
12-6