Subaru Impreza WRX (2014 year). Manual — part 24
12-2
Specifications/Specifications
Specifications
These specifications are subject to change without notice.
&
Dimensions
in (mm)
Item
4-door
5-door
Turbo models
Turbo models
Except STI
STI
Except STI
STI
Overall length
180.3 (4,580)
173.8 (4,415)
Overall width
70.7 (1,795)
70.7 (1,795)
Overall height
58.1 (1,475)
57.9 (1,470)
58.1 (1,475)
57.9 (1,470)
Wheel base
103.3 (2,625)
103.3 (2,625)
Tread
Front
60.2 (1,530)
60.2 (1,530)
Rear
60.6 (1,540)
60.6 (1,540)
Ground clearance*
1
6.1 (155)
5.9 (150)
6.1 (155)
5.9 (150)
*1: Measured with vehicle empty
&
Engine
Engine model
EJ255
(2.5 L, DOHC, turbo, except STI)
EJ257
(2.5 L, DOHC, turbo, STI)
Engine type
Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine
Displacement cc (cu-in)
2,457 (150)
Bore 6 Stroke in (mm)
3.9 6 3.1 (99.5 6 79.0)
Compression ratio
8.4 : 1
8.2 : 1
Firing order
1 – 3 – 2 – 4
&
Electrical system
Battery type and capacity (5HR)
MT
12V-48AH (55D23L)
Alternator
Turbo models
12V-110A
Spark plugs
Turbo models
SILFR6A (NGK)
Specifications/Specifications
12-3
– CONTINUED –
12-4
Specifications/Specifications
&
Fuel
NOTE
The engine is designed to operate using unleaded gasoline.
Model
Fuel requirement
Fuel tank capacity
Except STI
91 AKI (95 RON) or higher*
1
16.9 US gal (64 liters, 14.1 Imp gal)
STI
93 AKI (98 RON) or higher*
2
*1: 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 temporarily used. For details, refer to “Fuel” F7-3.
*2: 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. For details, refer to “Fuel” F7-3.
&
Lubricants
NOTE
Each quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on the
temperature and other factors.
!
Engine oil
For checking, adding and replacing procedure, or other details, refer to “Engine oil” F11-8.
Oil grade
SAE viscosity No. and
applicable temperature
Engine oil capacity
API (American Petroleum In-
stitute) classification SM with
the words “ENERGY CON-
SERVING” or SN with the
words “RESOURCE CON-
SERVING”
or
ILSAC (International Lubricant Specifi-
cation Advisory Committee) GF-4 or
GF-5, which can be identified 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.
*: 10W-30, 10W-40, 5W-30 or 5W-40
conventional oil may be used if replen-
ishment is needed but should be changed
to 5W-30 synthetic oil at the next oil
change.
· When adding the oil from
L to F level:
1.1 US qt (1.0 liter, 0.9
Imp qt)
· When changing the oil
and oil filter:
- Except STI:
4.4 US qt (4.2 liters, 3.7
Imp qt)
- STI:
4.5 US qt (4.3 liters, 3.8
Imp qt)
Specifications/Specifications
12-5
– CONTINUED –
12-6
Specifications/Specifications
!
Manual transmission and rear differential gear oil
Oil grade
API classification GL-5
SAE viscosity No. and
applicable temperature
Oil capacity
Manual transmission oil
5-speed
3.7 US qt (3.5 liters, 3.1 Imp qt)
6-speed
4.3 US qt (4.1 liters, 3.6 Imp qt)
Rear differential gear oil
STI models
1.1 US qt (1.0 liter, 0.9 Imp qt)
Others
0.8 US qt (0.8 liter, 0.7 Imp qt)
For the checking procedures or other details, refer to “Manual transmission oil” F11-16 or “Rear differential gear oil” F11-17.
&
Fluids
NOTE
Each quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on the
temperature and other factors.
Fluid
Fluid type
Fluid capacity
Power steering fluid
· SUBARU ATF
· “Dexron III” Type Automatic Transmission Fluid
0.7 US qt (0.7 liter, 0.6 Imp qt)
Brake fluid
· Genuine SUBARU brake fluid
· FMVSS No. 116, fresh DOT 3 or DOT 4 brake fluid
–
Clutch fluid
–
For the checking procedures or other details, refer to “Power steering fluid” F11-17, “Brake fluid” F11-18 or “Clutch fluid” F11-19.
Specifications/Specifications
12-7
– CONTINUED –
12-8
Specifications/Specifications
&
Engine coolant
NOTE
Each quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on the
temperature and other factors.
Model
Coolant capacity
Coolant type
Turbo models
Except STI
7.8 US qt (7.4 liters, 6.5 Imp qt)
SUBARU Super Coolant
STI
8.1 US qt (7.7 liters, 6.8 Imp qt)
For the checking, adding and replacing procedure, or other details, refer to “Cooling system” F11-11.
&
Tires
Tire size
235/45R17
245/40R18
Wheel size
17 6 8 J
18 6 8
1
/
2
J
Pressure
Front
33 psi (230 kPa, 2.3 kgf/cm
2
)
Rear
32 psi (220 kPa, 2.2 kgf/cm
2
)
Temporary spare tire
Size
T135/70 D17
Pressure
60 psi (420 kPa, 4.2 kgf/cm
2
)
Wheel nut tightening torque
72 lbf·ft (100 N·m, 10 kgf·m)*
*: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the edge 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.
Specifications/Specifications
12-9
12-10
Specifications/Fuses and circuits
Fuses and circuits
&
Fuse panel located in the passenger compartment
Fuse
panel
Fuse
rating
Circuit
1
Empty
2
Empty
3
15A
.
Door locking
4
10A
.
Front wiper deicer relay
5
10A
.
Combination meter
.
Clock
6
7.5A
.
Remote
control
rear
view mirrors
.
Seat heater relay
7
15A
.
Combination meter
.
Integrated unit
8
20A
.
Stop light
9
15A
.
Front wiper deicer
10
7.5A
.
Power supply (battery)
11
7.5A
.
Turn signal unit
12
15A
.
Engine control unit
.
Integrated unit
13
20A
.
Accessory power outlet
(center console)
14
15A
.
Front side marker light
.
Tail light
.
Rear combination light
15
Empty
Fuse
panel
Fuse
rating
Circuit
16
10A
.
Illumination
17
15A
.
Seat heaters
18
10A
.
Backup light
19
Empty
20
10A
.
Accessory power outlet
(instrument panel)
21
7.5A
.
Starter relay
22
15A
.
Air conditioner
.
Rear window defogger
relay coil
23
15A
.
Rear wiper
.
Rear window washer
24
15A
.
Audio unit
25
15A
.
SRS airbag system
26
7.5A
.
Power window relay
.
Radiator main fan relay
27
15A
.
Blower fan
28
15A
.
Blower fan
29
15A
.
Fog light
30
30A
.
Front wiper
31
7.5A
.
Auto air conditioner unit
.
Integrated unit
Fuse
panel
Fuse
rating
Circuit
32
Empty
33
7.5A
.
ABS/Vehicle Dynamics
Control unit
Specifications/Fuses and circuits
12-11
– CONTINUED –
12-12
Specifications/Fuses and circuits
&
Fuse panel located in the engine compartment
A)
Main fuse
Fuse
panel
Fuse
rating
Circuit
1
30A
.
ABS unit
.
Vehicle Dynamics Con-
trol unit
2
25A
.
Main fan (cooling fan)
3
10A
.
Secondary air combina-
tion valve (turbo models)
4
25A
.
Sub fan (cooling fan)
5
Empty
6
10A
.
Audio
7
30A
.
Headlight (low beam)
8
15A
.
Headlight (high beam)
9
20A
.
Back-up
10
15A
.
Horn
11
25A
.
Rear window defogger
.
Mirror heater
12
15A
.
Fuel pump
13
10A
.
Automatic transmission
control unit
14
7.5A
.
Engine control unit
15
15A
.
Turn and hazard warn-
ing flasher
16
15A
.
Tail and illumination re-
lay
17
7.5A
.
Alternator
Fuse
panel
Fuse
rating
Circuit
18
15A
.
Headlight (right side)
19
15A
.
Headlight (left side)
Specifications/Fuses and circuits
12-13
12-14
Specifications/Bulb chart
Bulb chart
NOTE
Lights from A to D are the LED (Light Emitting Diode) type. Consult your SUBARU dealer for replacement.
Wattage
Bulb No.
1)
High beam headlight
12V-60W
9005 (HB3)
2)
Low beam headlight
Models with HID light
12V-35W
D2S
Models with halogen light
12V-55W
H11
3)
Front turn signal light/Front side marker light
12V-27/8W
1157NA
4)
Map light
12V-8W
–
5)
Dome light
12V-8W
–
6)
Front fog light
12V-51W
9006 (HB4)
7)
Trunk light (4-door)
12V-5W
168 (W5W)
8)
High-mounted stop light (4-door, if equipped)
12V-21W
(P21W)
9)
Rear turn signal light (4-door)
12V-21W
(WY21W)
10) Backup light (4-door)
12V-16W
921
11) Stop light/Tail and rear side marker light (4-door)
12V-21/5W
7443
(W21/5W)
12) Cargo area light (5-door)
12V-5W
–
13) Rear side marker light (5-door)
12V-5W
168 (W5W)
14) Rear turn signal light (5-door)
12V-21W
(WY21W)
15) Backup light (5-door)
12V-21W
7440
16) Licence plate light
12V-5W
168 (W5W)
A)
High-mounted stop light (5-door)
–
–
B)
Stop light/Tail light (5-door)
–
–
C)
High-mounted stop light (4-door, if equipped)
–
–
D)
Side turn signal light (if equipped)
–
–
WARNING
. Bulbs may become very hot while
illuminated. Before replacing
bulbs, turn off the lights and wait
until the bulbs cool down. Other-
wise, there is a risk of sustaining
a burn injury.
. For models with HID low beam
headlights, observe the following
precautions. Not doing so carries
the risk of an electric shock that
could result in serious injury
because the HID bulbs use an
extremely high voltage.
– Do not replace any headlight
bulbs (both low beam and
high beam) by yourself.
– Do not remove/restore the
headlight assemblies by your-
self.
– Do not remove any headlight-
assembly components by
yourself.
For replacement, contact your
SUBARU dealer.
Specifications/Bulb chart
12-15
– CONTINUED –
12-16
Specifications/Bulb chart
CAUTION
Replace any bulb only with a new
bulb of the specified wattage. Using
a bulb of different wattage could
result in a fire.
Vehicle identification
1)
Vehicle identification number
2)
Emission control label
3)
Tire inflation pressure label
4)
Certification label
5)
Vehicle identification number plate
6)
Model number label
7)
Fuel label
8)
Air conditioner label
Specifications/Vehicle identification
12-17
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