SUBARU WRX 2016 Owners Manual

Maintenance and service/Replacing battery
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.11-52

Specifications ..................................................... 12-2Dimensions ........................................................ 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 ........................................ 12-8
Brake disc ......................................................... 12-9
Fuses and circuits ........................................... 12-10Fuse panel located in the passenger
compartment ................................................. 12-10
Fuse panel located in the engine
compartment ................................................. 12-12
Bulb chart ......................................................... 12-16
Vehicle identification ....................................... 12-18
Specifications
12

Specifications/Specifications
Specifications These specifications are subject to change without notice.
& Dimensions in (mm)
Item STI Except STI
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)12-2

& Engine Model
STI Except STI
Engine model EJ257
(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. Specifications/Specifications
– CONTINUED –12-3

Specifications/Specifications
& Engine oilFor the checking, adding and replacing procedure or other details, refer to “ Engine oil ” F 11-13.
NOTE The procedure for changing the engine oil and oil filter should be performed by a properly-trained expert. It is recommended
that you have this service performed by your SUBARU dealer.
! Oil filterModel STI Except STI
Oil filter color Black Black
Part number 15208AA100 15208AA170
Amount of rotation 1 rotation 3/4 rotation
! 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.12-4

! 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, different brands may be used 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
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
protection. 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)Specifications/Specifications
– CONTINUED –12-5

Specifications/Specifications
& 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 tem-
perature —— . 75W-90*
. 90
*: recommended
Oil capa-
city* 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 ” F 11-23 “ Front differential gear oil (CVT
models) and rear differential
gear oil ” F 11-23 “ Front differential gear oil (CVT models) and rear
differential gear oil ” F 11-23
*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. After refilling the gearbox with oil, the oil level should be checked.
*2: For more details about maintenance and service, refer to the indicated section.
*3: The vehicle is filled at the factory with this oil.12-6

*4: You may use this type of manual transmission oil. However, using this type of oil will detract from driveability and fuel efficiency.
& 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) “ Continuously variable trans-
mission fluid ” F 11-23
Brake fluid FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid –“ Brake fluid ” F 11-25
Clutch fluid (MT models) FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid – “ Clutch fluid (MT models) ” F 11 -
26
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) “ Power steering fluid (STI) ”
F 11-24
*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 8.7 US qt (8.2 liters, 7.2 Imp qt)
CVT models 8.9 US qt (8.4 liters, 7.4 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 ” F 11-17. Specifications/Specifications
– CONTINUED –12-7

Specifications/Specifications
& Electrical system Battery type and capacity (5HR) 55D23L
Alternator STI 12V-110A
Except STI 12V-130A
Spark plugs STI SILFR6A (NGK)
Except STI ILKAR8H6 (NGK)
& Tires Tire size 235/45R17 94W 245/40R18 97W
Wheel size
17 6 8J 18 6 8 1/2J
Pressure Front
33 psi (230 kPa, 2.3 kgf/cm 2
) 33 psi (230 kPa, 2.3 kgf/cm 2
)
Rear
32 psi (220 kPa, 2.2 kgf/cm 2
) 32 psi (220 kPa, 2.2 kgf/cm 2
)
Wheel nut tightening torque
89 lbf·ft (120 N·m, 12 kgf·m)* 1
*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. For the wheel nut tightening
procedure, refer to “ Changing a flat tire ” F 9-4.
& Temporary spare tires Temporary spare tire size T145/70D17 205/50R17
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
)
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 ” F 9-4.12-8

& 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