2022 SUBARU BRZ brake hose

Manual Transmission
235
Starting and Operating7
▼
Maximum allowable speeds
The following table shows the maximum
speeds that are possible with each
different gear. The pointer of the tachom-
eter will enter the red area if these speeds
are exceeded.
With the exception of cases where sudden
acceleration is required, do not drive the
vehicle with the pointer of the tachometer
inside the red area. Failure to observe this
precaution can lead to excessive engine
wear and poor fuel economy.
NOTENever exceed the posted speed limit.■
Driving Tips
NOTE
If the accelerator and brake pedals are
depressed at the same time, driving
torque may be restrained. This is not a
malfunction.
Do not drive with your foot resting on the
clutch pedal and do not use the clutch to
hold your vehicle at a standstill on an
upgrade. Either of those actions may
cause clutch damage.
Do not drive with your hand resting on the
shift lever. This may cause wear on the
transmission components.
When it is necessary to reduce vehicle
speed due to slow traffic, turning corners,
or driving up steep hills, downshift to a
lower gear before the engine starts to
labor. On steep downgrades, downshift the
transmission to 5th, 4th, 3rd or 2nd gear
as necessary; this helps to maintain a safe
speed and to extend brake pad life.
In this way, the engine provides a braking
effect. Remember, if you “ride” (over use)
the brakes while descending a hill, they
may overheat and not work properly.
The engine may, on rare occasions, knock
when the vehicle rapidly accelerates or
rapidly pulls away from a standstill. This
phenomenon is not an indication of a
problem in your vehicle.
Gear
mph (km/h)
1st 28 (45)
2nd 47 (75)
WARNING
When shifting down a gear, ensure
that the vehicle is not travelling at a
speed exceeding the Maximum
Allowable Speed for the gear which
is about to be selected. Failure to
observe this precaution can lead to
engine over-revving and this in turn
can result in engine damage.
In addition, sudden application of
engine brakes when the vehicle is
travelling on a slippery surface can
lead to wheel locking; as a conse-
quence, control of the vehicle may
be lost and the risk of an accident
increased.
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Reverse Automatic Braking (RAB) System (If Equipped)
281
Starting and Operating7
– CONTINUED –
- Pedestrians.
- Moving objects including
moving vehicles.
- Objects which absorbs sound
waves such as cloth or snow.
- Objects whose surface has a
diagonal angle.
- Objects that are low to the
ground such as parking blocks.
- Objects that are high above the
ground such as objects hanging
from above.
- Objects that are out of range of
the center of the vehicle in the hori-
zontal direction.
- Objects that are not in a vertical
direction.
 When reversing the vehicle, the
functions may not be able to work
properly or may cause a system
malfunction if the following conditions
exist.
High frequency sound from other
sources are nearby:
- Horn sound from another
vehicle.
- Engine sound from other vehi-
cles.
- Sound of an air brake.
- Vehicle detection equipment or a
sonar from another vehicle. - A sound wave with a frequency
similar to the vehicle’s system is
transmitted near by.
- A vehicle equipped with the
same system is reversing toward
your reversing direction.
Weather conditions:
- Extremely high or extremely low
temperatures in which the area near
the sonar sensor becomes too hot
or too cold to operate.
- The sonar sensors or the rear
bumper near the sonar sensors are
exposed to heavy rain or a signifi-
cant amount of water.
- Fog, snow or sandstorm, etc.
- Air is moving rapidly such as
when a strong wind is blowing.
Parts attached to the rear bumper
near the sonar sensor:
- Commercial electr
onic parts (fog
light, fender pole, radio antenna) or
commercial attachment parts (trailer
hitch, bicycle carrier, bumper guard)
are attached.
- Parts that emit high frequency
sound, such as a horn or speaker,
are attached.
Vehicle conditions:
- Ice, snow or mud is adhered to
the sonar sensors or the rear
bumper near the sonar sensor. - The vehicle is significantly
inclined.
- The ground clearance is signifi-
cantly reduced due to the vehicle’s
loading condition, etc.
- When the sonar sensor is
misaligned due to a collision or an
accident.
Surrounding environment:
- A cloth banner, flag, hanging
branch or railroad crossing bars are
present in the reversing direction.
- When reversing on a gravel or
grassy area.
- When reversing in an area where
objects or walls are adjacent to the
vehicle such as narrow tunnels,
narrow bridges, narrow roads or
narrow garages.
- Wheel track or hole is present in
the ground of the reversing direc-
tion.
- When reversing over a drainage
cover (grating cover).
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Winter Driving
294the one used previously, purge the old
fluid from the piping between the wind-
shield washer tank and washer nozzles by
operating the washer for a certain period
of time. Otherwise, if the concentration of
the fluid remaining in the piping is too low
for the outside temperature, it may freeze
and block the nozzles.▼
Before driving your vehicle
Before entering the vehicle, remove any
snow or ice from your shoes because that
could make the pedals slippery and
driving dangerous.
While warming up the vehicle before
driving, check that the accelerator pedal,
brake pedal, and all other controls operate
smoothly.
Clear away ice and snow that has accu-
mulated under the fenders to avoid
making steering difficult. During severe
winter driving, stop when and where it is
safe to do so and check under the fenders
periodically.
▼Parking in cold weather
CAUTION
 Adjust the washer fluid concen-
tration appropriately for the
outside temperature. If the
concentration is inappropriate,
sprayed washer fluid may freeze
on the windshield and obstruct
your view, and the fluid may
freeze in the windshield washer
tank.State or local regulations on vola-
tile organic compounds may
restrict the use of methanol, a
common windshield washer anti-
freeze additive. Washer fluids
containing non-methanol anti-
freeze agents should be used
only if they provide cold weather
protection without damaging
your vehicle’s paint, wiper blades
or washer system.
WARNING
Snow can trap dangerous exhaust
gases under your vehicle. Keep
snow clear of the exhaust pipe and
from around your vehicle if you
park the vehicle in snow with the
engine running.
CAUTION
Do not use the parking brake
when parking for long periods in
cold weather since it could freeze
in that position.When the vehicle is parked in
snow or when it snows, raise the
wiper blades off the glass to
prevent damage to them.Under either of the following
conditions, icing may develop on
the brake system, which could
cause poor braking action.
- When the vehicle has been left
parked after use on roads
heavily covered with snow- When the vehicle has been leftparked during a snowstormCheck for snow or ice buildup on
the suspension, disc brakes and
brake hoses underneath the vehi-
cle. If there is caked snow or ice,
remove it, being careful not to
damage the disc brakes and
brake hoses and ABS harness.
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Exterior Care
333
Appearance Care10
– CONTINUED –
▼
Using a warm water washer
 Keep a good distance of 12 in (30 cm)
or more between the washer nozzle and
the vehicle.
 Do not wash the same area continu-
ously.
 If a stain will not come out easily, wash
by hand. Some warm water washers are
of the high temperature, high pressure
type, and they can damage or deform the
resin parts such as mouldings, or cause
water to leak in to the vehicle.
■
Waxing and Polishing
Always wash and dry the vehicle before
waxing and polishing.
Use a good quality polish and wax and
apply them according to the manufac-
turer’s instructions. Wax or polish when
the painted surface is cool. Be sure to polish and wax the chrome trim,
as well as the painted surfaces. Loss of
wax on a painted surface leads to loss of
the original luster and also quickens the
deterioration of the surface. It is recom-
mended that a coat of wax be applied at
least once a month, or whenever the
surface no longer repels water.
If the appearance of the paint has dimin-
ished to the point where the luster or tone
cannot be restored, lightly polish the
surface with a fine-grained compound.
Never polish just the affected area, but
include the surrounding area as well.
Always polish in only one direction. A No.
2000 grain compound is recommended.
Never use a coarse-grained compound.
Coarser grained compounds have a
smaller grain-size number and could
damage the paint. After polishing with a
compound, coat with wax to restore the
original luster. Frequent polishing with a
compound or an incorrect polishing tech-
nique will result in removing the paint layer
and exposing the undercoat. When in
doubt, it is always best to contact your
SUBARU dealer or an auto paint
specialist.
NOTEBe careful not to block the windshield
washer nozzles with wax when waxing
the vehicle.■
Cleaning Alloy Wheels
 Promptly wipe the alloy wheels clean of
any kind of grime or agent. If dirt is left on
too long, it may be difficult to clean off.
 Do not use soap containing grit to clean
the wheels. Be sure to use a neutral
cleaning agent, and later rinse thoroughly
with water. Do not clean the wheels with a
stiff brush or expose them to a high-speed
washing device.
 Clean the vehicle (including the alloy
wheels) with water as soon as possible
when it has been splashed with sea water,
exposed to sea breezes, or driven on
roads treated with salt or other agents.
CAUTION
 Be careful not to damage brake
hoses, sensor harnesses, and
other parts when washing
suspension components.Be careful not to flush the engine
bottom for a long time. It may
cause damage of some electrical
parts.
CAUTION
Do not use any agents with organic
solvents on the surface of the bulb
assembly cover. However, if a pol-
ish or wax with organic solvents is
applied to the cover surface, com-
pletely wipe off the polish or wax.
Otherwise, the cover surface may
be damaged.
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Maintenance and Service11
Maintenance and Service
11-1. Maintenance Schedule .....................................339
11-2. Maintenance Precautions.................................339
Before Checking or Servicing in the Engine
Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment While the Engine Is Running ............341
11-3. Maintenance Tips ..............................................341
Removing and Reinstalling Clips................................341
11-4. Engine Hood ......................................................343
11-5. Engine Compartment Overview.......................345
11-6. Engine Oil ..........................................................346
Engine Oil Consumption..............................................346
Checking the Oil Level .................................................346
Changing the Oil and Oil Filter ....................................347
Recommended Grade and Viscosity ..........................347
Synthetic Oil..................................................................348
11-7. Cooling System .................................................348
Cooling Fan, Hose and Connections ..........................348
Engine Coolant .............................................................349
11-8. Air Cleaner Element ..........................................350
Replacing the Air Cleaner Element .............................350
11-9. Spark Plugs .......................................................352
Recommended Spark Plugs ........................................352
11-10. Drive Belt .........................................................352
11-11. Automatic Transmission Fluid ......................352
Recommended Grade and Viscosity ..........................352
11-12. Differential Gear Oil ........................................353
Recommended Grade and Viscosity ..........................353
11-13. Manual Transmission Oil ...............................353
Recommended Grade and Viscosity ..........................353
11-14. Brake Fluid ......................................................353
Checking the Fluid Level ............................................ 353
Recommended Brake Fluid ........................................ 354
11-15. Clutch Fluid (MT models) ...............................354
Checking the Fluid Level ............................................ 354
Recommended Clutch Fluid ....................................... 355
11-16. Brake Booster .................................................355
11-17. Brake Pedal .....................................................356
11-18. Clutch Pedal (MT models) ..............................356
11-19. Replacement of Brake Pad and Lining..........356
Breaking-in of New Brake Pads and Linings ............ 357
11-20. Parking Brake Stroke ......................................357
11-21. Tires and Wheels ............................................358
Types of Tires .............................................................. 358
Tire Pressure Monito ring System (TPMS)
(If Equipped)............................................................... 358
Tire Inspection ............................................................. 360
Tire Pressures and Wear............................................. 361
Wheel Balance ............................................................. 363
Wear Indicators ............................................................ 363
Rotational Direction of Tires....................................... 364
Tire Rotation................................................................. 364
Tire Replacement ...... ........................................... ........ 365
Wheel Replacement ..................................................... 365
11-22. Alloy Wheels ....................................................366
11-23. Windshield Washer Fluid ...............................366
11-24. Replacement of Wiper Blades........................367
Windshield Wiper Blade Assembly ............................ 368
Windshield Wiper Blade Rubber ................................ 369
11-25. Battery ..............................................................370
11-26. Fuses ................................................................371
11-27. Installation of Acce ssories ............................373
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Maintenance Precautions
340NOTESUBARU does not endorse the use of
non-SUBARU approved flushing sys-
tems and strongly advises against per-
forming these services on a SUBARU
vehicle. Non-SUBARU approved flush-
ing systems use chemicals and/or sol-
vents which have not been tested or
approved by SUBARU. SUBARU war-
ranties do not cover any part of the
vehicle which is damaged by adding or
applying chemicals and/or solvents
other than those approved or recom-
mended by SUBARU.
■
Before Checking or
Servicing in the Engine
Compartment
■
When Checking or Servicing
in the Engine Compartment
Do not tamper wi th the wiring of
the SRS airbag system or seatbelt
pretensioner system, or attempt
to take its connectors apart, as
that may activate the system or it
can render it inoperative. NEVER
use a circuit tester for these
wiring. If your SRS airbag or
seatbelt pretensioner needs
service, consult your nearest
SUBARU dealer. Check the inside of the engine
compartment to see if there are
any cloths and tools left. If they
are left inside, they may be a
cause of malfunction and fire.
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 is 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, always turn
the push-button i gnition switch to
the “OFF” position and confirm
that the operation indicator on
the switch is turn ed off. Then take
the access key fob out from the
vehicle.
 Before performing any servicing
on a vehicle equipped with a
remote engine start system
temporarily place that system in
the service mode to prevent it
from unexpectedly starting the
engine.
B02092
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Alloy Wheels
366NOTEWhen 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.
11-22. Alloy WheelsAlloy wheels can be scratched and
damaged easily. Handle them carefully to
maintain their appearance, performance,
and safety.
 When any of the wheels is removed
and replaced for tire rotation or to change
a flat, 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 alloy wheels.
11-23. Windshield WasherFluid1) “LOW” positionThe washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position), add
washer fluid.
Use windshield washer fluid. If windshield
washer fluid is unavailable use clean
water.
In areas where water freezes in winter,
use an anti-freeze type windshield washer
fluid.
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
during turns. The resulting loss of
vehicle control could lead to an
accident.
1B02110
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Tire Information
397
Consumer Information and Reporting Safety Defects13
– CONTINUED –
The vehicle placard shows original
tire size, recommended cold tire
inflation pressure on each tire at
maximum loaded vehicle weight,
seating capacity and loading infor-
mation.
▼Adverse safety consequences
of under-inflation
Driving at high speeds with exces-
sively low tire pressures can cause
the tires to flex severely and to
rapidly become hot. A sharp
increase in temperature could
cause tread separation, and failure
of the tire(s). Possible resulting loss
of vehicle control could lead to an
accident.
▼ Measuring and adjusting air
pressure to achieve proper
inflation
Check and, if necessary, adjust the
pressure of each tire (including the
spare) at least once a month and
before any long journey. Check the
tire pressures when the tires are
cold. Use a pressure gauge to adjust the tire pressures to the
specific values. Driving even a short
distance warms up the tires and
increases the tire pressures. Also,
the tire pressures are affected by
the outside temperature. It is best to
check tire pressure outdoors before
driving the vehicle. When a tire
becomes warm, t
he air inside it
expands, causing the tire pressure
to increase. Be careful not to
mistakenly release air from a warm
tire to reduce its pressure.
■ Glossary of Tire TerminologyAccessory weight
The combined weight (in excess of
those standard items which may be
replaced) of automatic transmis-
sion, power steering, power brakes,
power windows, power seats, radio,
and heater, to the extent that these
items are available as factory-
installed equipment (whether
installed or not).
 Bead
The part of the tire that is made of
steel wires, wrapped or reinforced by ply cords and that is shaped to fit
the rim.

Bead separation
A breakdown of the bond between
components in the bead.
 Bias ply tire
A pneumatic tire in which the ply
cords that extend to the beads are
laid at alternate an gles substantially
less than 90 degrees to the
centerline of the tread.
 Carcass
The tire structure, except tread and
sidewall rubber which, when
inflated, bears the load.
 Chunking
The breaking away of pieces of the
tread or sidewall.
 Cold tire pressure
The pressure in a tire that has been
driven less than 1 mile or has been
standing for three hours or more.
 Cord
The strands forming the plies in the
tire.
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