2016 SUBARU WRX coolant

Maintenance and service/Maintenance precautions
guard against getting oil or fluids
in your eyes. If something does
get in your eyes, thoroughly
wash them out with clean water.
. Do not tamper with the wiring of
the SRS airbag system or seat-
belt pretensioner system, or at-
tempt to take its connectors
apart, as that may activate the
system or it can render it inop-
erative. NEVER use a circuit
tester for this wiring. If your
SRS airbag or seatbelt preten-
sioner needs service, consult
your nearest SUBARU dealer.
NOTE SUBARU does not endorse the use of
non-SUBARU approved flushing sys-
tems and strongly advises against
performing these services on a
SUBARU vehicle. Non-SUBARU ap-
proved flushing systems use chemi-
cals and/or solvents which have not
been tested or approved by SUBARU.
SUBARU warranties do not cover any
part of the vehicle which is damaged by
adding or applying chemicals and/or
solvents other than those approved or
recommended by SUBARU. & Before checking or servicing
in the engine compartment WARNING. Always stop the engine and apply
the parking brake to prevent the
vehicle from moving.
. Always let the engine cool down.
Engine parts become very hot
when the engine is running and
remain hot for some time after
the engine has stopped.
. Do not spill engine oil, engine
coolant, brake fluid or any other
fluid on hot engine components.
This may cause a fire.
. When the ignition switch is in the
“ ON ” position, the cooling fan
may operate suddenly even
when the engine is stopped. If
your body or clothes come into
contact with a rotating fan, that
could result in serious injury. To
avoid risk of injury, perform the
following precautions.
– Models with push-button start
system:
Always turn the push-button
ignition switch to the “ OFF ”
position and confirm that the operation indicator on the
switch is turned off. Then take
the access key out from the
vehicle.
– Models without push-button
start system:
Always remove the key from
the ignition switch.
. Before performing any servicing
on a vehicle equipped with a
remote engine start system (a
dealer option) temporarily place
that system in the service mode
to prevent it from unexpectedly
starting the engine.11-4

Engine compartment overview & STI 1) Power steering fluid reservoir
(page 11-24)
2) Brake fluid reservoir/Clutch fluid reservoir
(page 11-25)
3) Fuse box (page 11-42)
4) Battery (page 11-41)
5) Windshield washer tank (page 11-38)
6) Engine oil filler cap (page 11-13)
7) Engine coolant reservoir (page 11-18)
8) Engine oil level gauge (page 11-13)
9) Coolant filler tank cap (page 11-18)
10) Air cleaner case (page 11-19)Maintenance and service/Engine compartment overview
– CONTINUED –11-11

Maintenance and service/Engine compartment overview
& Except STI 1) Brake fluid reservoir/Clutch fluid reservoir
(MT models) (page 11-25)
2) Fuse box (page 11-42)
3) Battery (page 11-41)
4) Windshield washer tank (page 11-38)
5) Engine oil filler cap (page 11-13)
6) Engine coolant reservoir (page 11-18)
7) Radiator cap (page 11-18)
8) Engine oil filter (page 11-15)
9) Engine oil level gauge (page 11-13)
10) Air cleaner case (page 11-19)
11-12

used if synthetic oil is unavailable.
Cooling system WARNING. Never attempt to remove the
radiator cap until the engine has
been shut off and has cooled
down completely. Since the cool-
ant is under pressure, you may
suffer serious burns from a spray
of boiling hot coolant when the
cap is removed.
. Be careful of the rotating cooling
fan when the engine hood is
open. When the engine tempera-
ture is high, the cooling fan in the
engine compartment may oper-
ate when the ignition switch is
turned to the “ ON ” position, even
if the engine is stopped. Touch-
ing the cooling fan while it is
rotating may result in injury.
CAUTION
. Vehicles are filled at the factory
with SUBARU Super Coolant that
does not require the first change
for 11 years/137,500 miles (11
years/220,000 km). This coolant
should not be mixed with any other brand or type of coolant
during this period. Mixing with a
different coolant will reduce the
life of the coolant. Should it be
necessary to top up the coolant
for any reason, use only
SUBARU Super Coolant.
If the SUBARU Super Coolant is
diluted with another brand or
type, the maintenance interval is
shortened to that of the mixing
coolant.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
& Cooling fan, hose and con-
nections Your vehicle employs an electric cooling
fan which is thermostatically controlled to
operate when the engine coolant reaches
a specific temperature.
If the radiator cooling fan does not operate
even when the engine coolant tempera-
ture gauge exceeds the normal operating
range, the cooling fan circuit may be
defective. Refer to “ Temperature gauge ”
F 3-11. Maintenance and service/Cooling system
– CONTINUED –11-17

Maintenance and service/Cooling system
Check the fuse and replace it if necessary.
Refer to “ Fuses ” F 11-42 and “ Fuses and
circuits ” F 12-10.
If the fuse is not blown, have the cooling
system checked by your SUBARU dealer.
If frequent addition of coolant is neces-
sary, there may be a leak in the engine
cooling system. It is recommended that
the cooling system and connections be
checked for leaks, damage, or looseness.
& Engine coolant! Checking the coolant level
1) “ FULL ” level mark
2) “ LOW ” level mark
Check the coolant level at each fuel stop.
1. Check the coolant level on the outside of the reservoir while the engine is cool.
2. If the level is close to or lower than the
“ LOW ” level mark, add coolant up to the
“ FULL ” level mark. If the reserve tank is
empty, remove the radiator cap and refill
coolant up to just below the filler neck as
shown in the following illustration.
STI
1) Fill up to this level Except STI
1) Fill up to this level
3. After refilling the reserve tank and the
radiator, reinstall the cap and check that
the rubber gaskets inside the radiator cap
are in the proper position.11-18

CAUTION. Be careful not to spill engine
coolant when adding it. If coolant
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If engine coolant gets on
the exhaust pipe, be sure to wipe
it off.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
! Changing the coolant
It may be difficult to change the coolant.
Have the coolant changed by your
SUBARU dealer if necessary.
The coolant should be changed according
to the maintenance schedule in the
“ Warranty and Maintenance Booklet ” .Air cleaner element WARNINGDo not operate the engine with the
air cleaner element removed. The air
cleaner element not only filters
intake air but also stops flames if
the engine backfires. If the air
cleaner element is not installed
when the engine backfires, you
could be burned.
CAUTIONWhen replacing the air cleaner ele-
ment, use a genuine SUBARU air
cleaner element. If it is not used,
there is the possibility of causing a
negative effect to the engine.
The air cleaner element functions as a
filter screen. When the element is perfo-
rated or removed, engine wear will be
excessive and engine life shortened.
It is not necessary to clean or wash the air
cleaner element. & Replacing the air cleaner
element Replace the air cleaner element according
to the maintenance schedule in the
“ Warranty and Maintenance Booklet ” . Un-
der extremely dusty conditions, replace it
more frequently. It is recommended that
you always use genuine SUBARU parts.
! STI
1. Use a screwdriver to undo the clips on
the air intake duct, then remove the air
intake duct. Maintenance and service/Air cleaner element
– CONTINUED –11-19

Maintenance and service/Aluminum wheels
Aluminum wheels Aluminum wheels can be scratched and
damaged easily. Handle them carefully to
maintain their appearance, performance,
and safety.
. When any of the wheels are removed
and replaced for tire rotation or to change
a flat tire, always check the tightness of
the wheel nuts after driving approximately
600 miles (1,000 km). If any nut is loose,
tighten it to the specified torque.
. Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the
wheel.
. Never let the wheel rub against sharp
protrusions or curbs.
. When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for aluminum wheels. Windshield washer fluid CAUTIONNever use engine coolant as washer
fluid because it could cause paint
damage.
When there is only a small amount of
washer fluid remaining, the windshield
washer fluid warning indicator will illumi-
nate. When this occurs, refill the washer
fluid as follows. Remove the washer tank filler cap, then
add windshield washer fluid until it
reaches the “ FULL ” mark on the tank. If
windshield washer fluid is unavailable use
clean water.
In areas where water freezes in winter,
use an anti-freeze type windshield washer
fluid. SUBARU Windshield Washer Fluid
contains 58.5% methyl alcohol and 41.5%
surfactant, by volume. Its freezing tem-
perature varies according to how much it
is diluted, as indicated in the following
table.11-38

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