2017 SUBARU FORESTER Coolant maintenance

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 while the engine is running .......... 11-5
Maintenance tips................................................ 11-5Removing and reinstalling clips .......................... 11-5
Engine hood....................................................... 11-7
Engine compartment overview .......................... 11-8
Non-turbo models.............................................. 11-8
Turbo models ..................................................... 11-9
Engine oil.......................................................... 11-10Engine oil consumption .................................... 11-10
Checking the oil level ....................................... 11-10
Changing the oil and oil filter ............................ 11-11
Recommended grade and viscosity .................. 11-11
Synthetic oil ..................................................... 11-12
Cooling system ................................................ 11-12Cooling fan, hose and connections ................... 11-12
Engine coolant ................................................. 11-13
Air cleaner element .......................................... 11-14Replacing the air cleaner element ..................... 11-14
Spark plugs...................................................... 11-16Recommended spark plugs .............................. 11-16
Drive belts........................................................ 11-16
Manual transmission oil .................................. 11-17
Recommended grade and viscosity .................. 11-17
Continuously variable transmission fluid ....... 11-17Front differential gear oil (CVT models) and
rear differential gear oil ................................ 11-17
Recommended grade and viscosity .................. 11-17
Brake fluid........................................................ 11-18Checking the fluid level .................................... 11-18
Recommended brake fluid ............................... 11-18
Clutch fluid (MT models)................................. 11-19Checking the fluid level.................................... 11-19
Recommended clutch fluid ............................... 11-19
Brake booster.................................................. 11-20
Brake pedal ...................................................... 11-20
Checking the brake pedal free play .................. 11-20
Checking the brake pedal reserve distance ....... 11-20
Clutch pedal (MT models) ............................... 11-21Checking the clutch function ............................ 11-21
Checking the clutch pedal free play .................. 11-21
Hill start assist system.................................... 11-21
Replacement of brake pad and lining ............ 11-22
Breaking-in of new brake pads and linings ....... 11-22
Parking brake stroke ....................................... 11-23
Tires and wheels .............................................. 11-23
Types of tires................................................... 11-23
Tire pressure monitoring system (TPMS) (if equipped) ...................................................... 11-23
Tire inspection ................................................. 11-25
Tire pressures and wear .................................. 11-25
Wheel balance ................................................. 11-27
Wear indicators ............................................... 11-27
Tire rotation direction mark .............................. 11-28
Tire rotation ..................................................... 11-28
Maintenance and service
11

Maintenance and service/Maintenance precautions
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 set
the parking brake firmly to pre-
vent 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.
. Always remove the key from the
ignition switch. When the ignition
switch is in the “ON ”position,
thecoolingfanmayoperate
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.
. Before performing any servicing
on a vehicle equipped with a
remote engine start system (a
dealer option), temporarily place
the remote engine start system in
service mode to prevent it from
unexpectedly starting the engine.
CAUTION
. Do not contact the drive belt
cover while checking the compo-
nents in the engine compart-
ment. Doing so may cause your
hand to slip off the cover and
result in an unexpected injury.
. Do not touch the oil filter until the
engine has cooled down comple-
tely. Doing so may result in a
burn or other injury. Note that the
oil filter becomes very hot when
the engine is running and re-
mains hot for some time after
the engine has stopped.
11-4

Maintenance and service/Engine compartment overview
Engine compartment overview
&Non-turbo models
1) Brake fluid reservoir/Clutch fluid reservoir
(MT) (page 11-18)
2) Fuse box (page 11-37)
3) Battery (page 11-36)
4) Windshield washer tank (page 11-30)
5) Engine oil filler cap (page 11-10)
6) Engine coolant reservoir (page 11-13)
7) Radiator cap (page 11-13)
8) Engine oil filter (page 11-11)
9) Engine oil level gauge (page 11-10)
10) Air cleaner case (page 11-14)
11-8

&Turbo models1) Brake fluid reservoir (page 11-18)
2) Fuse box (page 11-37)
3) Battery (page 11-36)
4) Windshield washer tank (page 11-30)
5) Engine oil filler cap (page 11-10)
6) Engine coolant reservoir (page 11-13)
7) Radiator cap (page 11-13)
8) Engine oil filter (page 11-11)
9) Engine oil level gauge (page 11-10)
10) Air cleaner case (page 11-14)
Maintenance and service/Engine compartment overview
11-9

Maintenance and service/Cooling system
in hot weather, oil of higher viscosity is
required to properly lubricate the en-
gine.
&Synthetic oil
You should use synthetic engine oil that
meets the same requirements given for
conventional engine oil. When using
synthetic oil, you must use oil of the same
classification, viscosity and grade shown
in this Owner ’s Manual. Refer to “Engine
oil ”F 12-4. Also, you must follow the oil
and filter changing intervals shown in the
Warranty and Maintenance booklet.
NOTE
Synthetic oil of the grade and viscosity
noted in chapter 12 is the recom-
mended engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.
Cooling system
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is
removed.
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 coolant temperature high
warning light blinks or illuminates in RED,
the cooling fan circuit may be defective.
Refer to “Coolant temperature low indica-
tor light/Coolant temperature high warning
light ”F 3-17.
Check the fuse and replace it if necessary.
Refer to “Fuses”F 11-37 and “Fuses and
circuits ”F 12-12.
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
11-12

the cooling system and connections be
checked for leaks, damage, or looseness.
&Engine coolant
! Checking the coolant level
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is
removed.
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.
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.
Maintenance and service/Cooling system
–CONTINUED –11-13

Maintenance and service/Air cleaner element
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
WARNING
Do 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.
CAUTION
When 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.
! Non-turbo models
1) Clip
1. Unsnap the two clips holding the air
cleaner case (front).
11-14

Maintenance and service/Aluminum wheels
&Wheel replacement
When replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available
from SUBARU dealers.
WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing dur-
ing turns. The resulting loss of
vehicle control could lead to an
accident.
NOTE
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 driv-
ing approximately 600 miles (1,000 km).
If any nut is loose, tighten it to the
specified torque.
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
CAUTION
Never use engine coolant as washer
fluid because it could cause paint
damage.
Windshield washer fluid warning light
(type A)
11-30