Subaru WRX (2021 year). Manual in english — page 27
(431,1)
2. Turn over the mud guard.
3. Disconnect the electrical connector
from the bulb as pushing the tab.
4. Remove the bulb by turning it counter-
clockwise.
5. Replace the bulb with a new one.
6. Reattach the mud guard.
&
Rear combination lights
1. Remove the clips from the trunk trim
with a flat-head screwdriver.
2. Open the rear portion of the trunk trim
panel as illustrated.
– CONTINUED –
Maintenance and service/Replacing bulbs
11-49
11
(432,1)
NOTE
Make sure that the “
*
” part of the trunk
trim in the illustration does not contact
the trunk lid stay. If the “
*
” part is bent,
the trunk trim may be torn.
1)
Rear side marker light
2)
Backup light
3)
Rear turn signal light
3. Remove the bulb socket from the rear
combination light assembly by turning it
counterclockwise.
4. Pull the bulb out of the bulb socket and
replace it with a new one.
5. Set the bulb socket into the rear
combination light assembly and turn it
clockwise until it locks.
6. Secure the rear trunk trim panel with
the clips.
NOTE
When replacing a bulb of the rear side
marker light, detach the bulb socket of
the backup light in advance. After
replacing the bulb, first attach the side
marker light, and then attach the back-
up light.
&
License plate light
1. Open the trunk and remove the clips
from the trunk lid trim with a flat-head
screwdriver.
2. Turn over the trunk lid trim.
3. Turn the bulb socket counterclockwise
and pull out the socket.
4. Pull the bulb out of the socket.
5. Install a new bulb.
6. Reinstall the bulb socket and the trunk
lid trim.
Maintenance and service/Replacing bulbs
11-50
(433,1)
&
Dome light
1. Remove the lens by prying the edge of
the lens with a flat-head screwdriver.
2. Pull the bulb out of the socket.
3. Install a new bulb.
4. Reinstall the lens.
&
Trunk light
1. Remove the cover by squeezing its
sides and pulling it.
2. Pull the bulb out of the socket.
3. Install a new bulb.
4. Reinstall the cover.
&
Vanity mirror light
CAUTION
Replacing the bulb could cause
burns since the bulb may be very
hot. We recommend that you have
the bulb replaced by your SUBARU
dealer.
&
Other bulbs
It may be difficult to replace the bulbs.
Have the bulbs replaced by your
SUBARU dealer if necessary.
Maintenance and service/Replacing bulbs
11-51
11
(434,1)
Replacing battery
The access key fob/transmitter battery
may be discharged under the following
conditions.
.
The operation of the keyless access
function is unstable.
.
The operating distance of the remote
keyless entry system is unstable.
.
The transmitter does not operate prop-
erly when used within the standard dis-
tance.
Replace the battery with a new one.
&
Safety precautions
CAUTION
.
Do not let dust, oil or water get on
or in the access key fob/transmit-
ter when replacing battery.
.
Before replacing the battery, re-
move any static electricity.
.
Be careful not to touch or damage
the printed circuit board in the
access key fob/transmitter when
replacing the battery.
.
Be careful not to allow children to
touch the battery and any re-
moved parts; children could
swallow them.
.
There is a danger of an explosion
if the battery is incorrectly re-
placed. Replace only with the
same or equivalent type of the
battery.
.
Do not expose batteries to exces-
sive heat such as bright sunlight,
fire or the like.
NOTE
.
Replace only with the same or
equivalent type of battery recom-
mended by the manufacturer.
.
Dispose of used batteries according
to local laws.
.
Mount the battery in the correct
orientation to prevent fluid leakage.
Be careful not to bend the terminals. It
may result in a malfunction.
.
It is recommended that the battery
should be replaced by a SUBARU deal-
er.
.
Use a new battery.
.
After replacing the battery, confirm
that the access key fob/transmitter
functions properly.
&
Replacing battery of access
key fob
CAUTION
When removing or reinstalling the
access key fob cover, make sure that
the plastic part does not come off or
become misaligned.
Battery: Button battery CR2032 or
equivalent
1)
Release button
2)
Emergency key
1. Take out the emergency key.
Maintenance and service/Replacing battery
11-52
(435,1)
2. Wrap a flat-head screwdriver with vinyl
tape or a cloth, and insert it in the gap to
remove the cover.
3. Take out the battery using a flat-head
screwdriver with vinyl tape or a cloth.
4. Insert a new battery with its positive (+)
side facing upward as shown in the figure.
5. Attach the cover to the access key fob
by fitting the projections and recesses
together.
6. Reinstall the emergency key.
&
Replacing transmitter battery
1. Open the key head using a flat-head
screwdriver.
2. Remove the transmitter case from the
key head.
– CONTINUED –
Maintenance and service/Replacing battery
11-53
11
(436,1)
3. Open the transmitter case by releasing
the hooks.
1)
Negative (−) side facing up
4. Replace the old battery with a new
battery (type
CR1620
or equivalent) mak-
ing sure to install the new battery with the
negative (−) side facing up.
5. Put together the transmitter case by
fitting the hooks on the case.
6. Reinstall the transmitter case in the
key head.
7. Refit the removed half of the key head.
After the battery is replaced, the trans-
mitter must be synchronized with the
remote keyless entry system’s control
unit. Press either the “ ” or “
” button
six times to synchronize the unit.
Maintenance and service/Replacing battery
11-54
(437,1)
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 . . . . . . . . . . . . .. 12-8
Tires. . . . . . . . . . . . . . . . . . 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
(438,1)
Specifications
These specifications are subject to change without notice.
&
Dimensions
in (mm)
Overall length
180.9 (4,595)
Overall width
70.7 (1,795)
Overall height
58.1 (1,475)
Wheel base
104.3 (2,650)
Tread
Front
60.2 (1,530)
Rear
60.6 (1,540)
Ground clearance
4.9 (125)
Specifications/Specifications
12-2
(439,1)
&
Engine
Model
STI
Except STI
Engine model
EJ25 (2.5 L, DOHC, turbo)
FA20 (2.0 L, DOHC, turbo)
Engine type
Horizontally opposed, liquid cooled 4 cylinder, 4-stroke petrol engine
Displacement cu-in (cc)
150 (2,457)
122 (1,998)
Bore
6
Stroke in (mm)
3.92
6
3.11 (99.5
6
79.0)
3.39
6
3.39 (86.0
6
86.0)
Compression ratio
8.2 : 1
10.6 : 1
Firing order
1 – 3 – 2 – 4
&
Fuel
NOTE
The engine is designed to operate using unleaded gasoline.
Model
Fuel
Fuel tank capacity
STI
93 AKI (98 RON) or higher
*
1
15.9 US gal (60 liters, 13.2 Imp gal)
Except STI
91 AKI (95 RON) or higher
*
2
*1: If unleaded gasoline with an octane rating of 93 AKI (98 RON) is not available, unleaded gasoline with an octane rating of 91 AKI (95 RON) may be
used with no detriment to engine durability or driveability.
*2: If unleaded gasoline with an octane rating of 91 AKI (95 RON) is not available, unleaded gasoline with an octane rating of 87 AKI (90 RON) or higher
may be used.
– CONTINUED –
Specifications/Specifications
12-3
12
(440,1)
&
Engine oil
For the checking, adding and replacing procedure or other details, refer to “Engine oil”
NOTE
Have the procedure for changing the engine oil and oil filter performed by a properly-trained expert. It is recommended that
you have this service performed by your SUBARU dealer.
!
Approved engine oil
Always use the SUBARU approved engine oil. For further details, please contact your SUBARU dealer.
If the approved engine oil is unavailable, use the alternative engine oil described on the next page.
Specifications/Specifications
12-4
(441,1)
!
Alternative engine oil
If the SUBARU approved oil is unavailable, the following alternative oil can be used.
NOTE
.
Each quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on
the temperature and other factors.
.
In choosing an oil, you want the proper quality and viscosity, as well as one that will enhance fuel economy. Oils of lower
viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the
engine. The following table lists the recommended viscosities and applicable temperatures.
.
When adding oil, you may use different brands together as long as they are the same API classification and SAE viscosity
as those recommended by SUBARU.
Oil grade
SAE viscosity No. and
applicable temperature
Engine oil capacity
API (American Petroleum Insti-
tute) classification
SN
with the
words “RESOURCE CONSER-
VING” or
SN PLUS
with the
words “RESOURCE CONSER-
VING”
or
ILSAC (International Lubricant
Specification Advisory Commit-
tee)
GF-5
, which can be identi-
fied with the ILSAC certification
mark (Starburst mark)
5W-30 synthetic
oil is the required oil for
optimum engine performance and pro-
tection. Conventional oil may be used if
synthetic oil is unavailable.
*: If 5W-30 synthetic oil is not available,
5W-40 conventional oil may be used if
replenishment is needed but should
be changed to 5W-30 synthetic oil at
the next oil change.
STI:
· Adding the oil from L to F level:
1.1 US qt (1.0 liter, 0.9 Imp qt)
· Changing the oil and oil filter:
4.5 US qt (4.3 liters, 3.8 Imp qt)
· Changing the oil:
4.2 US qt (4.0 liters, 3.5 Imp qt)
Except STI:
· Adding the oil from L to F level:
1.1 US qt (1.0 liter, 0.9 Imp qt)
· Changing the oil and oil filter:
5.4 US qt (5.1 liters, 4.5 Imp qt)
· Changing the oil:
5.2 US qt (4.9 liters, 4.3 Imp qt)
– CONTINUED –
Specifications/Specifications
12-5
12
(442,1)
&
Manual transmission, front differential and rear differential gear oil
Oil
Manual transmission oil
Front differential gear oil (CVT
models)
Rear differential gear oil
Oil
grade
STI
.
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
“Front differential gear oil (CVT
models) and rear differential
gear oil”
“Front differential gear oil (CVT models) and rear
differential gear oil”
*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
(443,1)
&
Fluids
Fluid
Fluid type*
1
Fluid capacity*
2
Remarks*
3
Continuously variable transmission
fluid (CVT models)
Consult your SUBARU dealer.
13.1 US qt (12.4 liters, 10.9 Imp qt)
Brake fluid
FMVSS No. 116, DOT 3 or DOT 4 brake
fluid
—
Clutch fluid (MT models)
FMVSS No. 116, DOT 3 or DOT 4 brake
fluid
—
Power steering fluid (STI)
· SUBARU ATF
· “Dexron III” Type Automatic Transmis-
sion Fluid
· IDEMITSU ATF HP
0.7 US qt (0.7 liter, 0.6 Imp qt)
*1: Use one of the indicated types of fluid.
*2: The indicated fluid quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors.
*3: For more details about maintenance and service, refer to the indicated section.
&
Engine coolant
Vehicle model
Coolant capacity
Coolant type
STI
8.2 US qt (7.7 liters, 6.8 Imp qt)
SUBARU SUPER COOLANT
Except STI
MT models
8.6 US qt (8.1 liters, 7.2 Imp qt)
CVT models
8.8 US qt (8.3 liters, 7.3 Imp qt)
The indicated coolant quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. For more details about maintenance and service, refer to “Cooling system”
– CONTINUED –
Specifications/Specifications
12-7
12
(444,1)
&
Electrical system
Battery type
75D23L
Alternator
STI
12 V-110 A
Except STI
12 V-130 A
Spark plugs
STI
ILFR7H (NGK)
Except STI
ILKAR8H6 (NGK)
&
Tires
Tire size
STI
—
245/40R18 97W*
1
245/35R19 89W
Except STI
235/45R17 94W*
1
245/40R18 97W
—
Wheel size
17
6
8J
18
6
8 1/2J
19
6
8 1/2J
Pressure
Front
33 psi (230 kPa, 2.3 kgf/cm
2
)
Rear
32 psi (220 kPa, 2.2 kgf/cm
2
)
Wheel nut tightening torque
89 lbf·ft (120 N·m, 12 kgf·m)*
2
*1: Except for Mexico
*2: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the end of the wheel nut wrench. If you have tightened the wheel nuts
by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible. For the wheel nut tightening procedure,
refer to “Changing a flat tire”
Specifications/Specifications
12-8
(445,1)
&
Temporary spare tires
For U.S. and Canada
For Mexico
Temporary spare tire size
T145/70D17
T135/70D18
205/50R17
205/45R18
Temporary spare tire inflation pressure
(recommended cold tire inflation pressure)
60 psi (420 kPa, 4.2 kgf/cm
2
)
33 psi (230 kPa, 2.3 kgf/cm
2
)
38 psi (260 kPa, 2.6 kgf/cm
2
)
Wheel nut tightening torque
89 lbf·ft (120 N·m, 12 kgf·m)*
1
*
2
*1: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the end of the wheel nut wrench. If you have tightened the wheel nuts
by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible.
*2: For the wheel nut tightening procedure, refer to “Changing a flat tire”
&
Brake disc
If you need information on the usage limit value of brake discs and the method for measuring them, consult your SUBARU dealer.
Specifications/Specifications
12-9
12
(446,1)
Fuses and circuits
&
Fuse panel located in the passenger compartment
Fuse
panel
Fuse
rating
Circuit
1
20 A
R.FOG TRAIL
2
7.5 A
METER IG
3
15 A
DOOR LOCK
4
10 A
IG2
5
Empty
6
7.5 A
MIR
7
15 A
UNIT+B
8
7.5 A
STOP
9
7.5 A
WIPER DEICE
10
7.5 A
D-OP+B
11
7.5 A
TURN IG
12
15 A
UNIT IG1
13
20 A
12 V PLUG
14
10 A
TAIL CLEARANCE
15
10 A
BKUP+B
16
7.5 A
ILM
17
15 A
SEAT HTR
18
10 A
LAMP IG
19
Empty
20
10 A
CIGAR
21
10 A
START
22
7.5 A
A/C IG
Specifications/Fuses and circuits
12-10
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