2023 SUBARU BRZ air filter

Climate Control4
Climate Control
4-1. Ventilator Control................................................198
Center Ventilators.........................................................198
Side Ventilators ............................................................198
4-2. Climate Control Panel.........................................198
4-3. Automatic Climate Control Operation...............200
Sensors .........................................................................200
4-4. Manual Climate Control ......................................201
Airflow Mode Selection ................................................201
Temperature Control ....................................................202
Fan Speed Control........................................................202
Air Conditioner Control................................................202
Air Inlet Selection .........................................................203
To Turn Off the Climate Control System ....................203
4-5. Defrosting ............................................................203 4-6. Operating Tips for Heater and Air

Conditioner ......... ....................................... ........204
Cleaning Ventilator Grille ............................................ 204
Efficient Cooling after Parking in Direct Sunlight .... 204
Lubrication Oil Circulation in the Refrigerant 
Circuit ......................................................................... 204
Checking Air Conditioning System before Summer Season ........................................................................ 204
Cooling and Dehumidifying in High Humidity and 
Low Temperature Weather Condition...................... 205
Air Conditioner Compressor Shut-Off When 
Engine Is Heavily Loaded ......................................... 205
Refrigerant for Your Climate Control System ........... 205
4-7. Air Filtration System ...........................................205
Replacing the Cabin Air Filter .................................... 206
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Air Filtration System
205
Climate Control4
– CONTINUED –
■Cooling and Dehumidifying
in High Humidity and Low
Te mperature Weather Condi -
tionUnder certain weather conditions (high
relative humidity, lo w temperatures, etc.)
a small amount of water vapor emission
from the air outlets may be noticed. This
condition is normal and does not indicate
any problem with the air conditioning
system.■ Air Conditioner Compressor
Shut-Off Whe n Engine Is
Heavily LoadedTo improve acceleration and gas mileage,
the air conditio ner compressor is
designed to temporarily shut off during air
conditioner operation whenever the accel-
erator is fully depressed such as during
rapid acceleration or when driving on a
steep upgrade.
■ Refrigerant for Your Climate
Control Syste m1) Air conditioner labelYour air conditioner uses ozone friendly
refrigerant R-1234yf (HFO-1234yf).
Before adding, changing or checking the
refrigerant, check the air conditioner label
in the location shown in the illustration to
confirm the type of refrigerant is used in
your vehicle.
Consult your SUBARU dealer for service.
Repairs needed as a result of using the
wrong refrigerant are not covered under
warranty.
4-7. Air Filtration SystemYour vehicle’s air conditioning system is
equipped with an air filtration system.
Replace the cabin air filter according to
the replacement schedule found in the
“Warranty and Maintenance Booklet”.
This schedule should be followed to main-
tain the filter’s dust collection ability.
Under extremely dusty conditions, the
filter should be replaced more frequently.
Have your filter checked or replaced by
your SUBARU dealer. For replacement,
use only a genuine SUBARU air filter kit.NOTEThe filter can influence the air condi-
tioning, heating and defroster perfor-
mance if not properly maintained.
1
403493
CAUTION
Contact your SUBARU dealer if the
following occurs, even if it is not yet
time to change the filter. Reduction of the airflow through
the vents. Windshield gets easily fogged or
misted.
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Air Filtration System
206■Replacing the Cabin Air Filter1. Remove the glove box.
(1) Open the glove box.1) Link pocket(2) Remove the link pocket from the
glove box. (3) Push both sides of the glove box

inward to unlock the stoppers and then
pull down the glove box as far as it will
go.
(4) Pull out the glove box horizontally
and remove the hinge portion. When doing this, be careful not to damage the

hinge.
2. Remove the cabin air filter according
to the following procedure in order to
prevent dust on the air cleaner from falling
to the inside of its housing.
(1) Pinch both tabs and remove the
filter cover.
(2) Gently tilt down the end of the filter
and slowly pull it out 0.4 in (1 cm).
(3) Slowly pull out the rest of the filter.
1
403594
403495403496
403497
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Air Filtration System
207
Climate Control4
3. Replace the cabin air filter with a new
one and then reinstall the cover. 4. Reinstall the glove box in the reverse

order of removal.
5. Close the glove box.
CAUTION
The arrow mark on the filter must
point UP.
403498
403499
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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 Tips
341
Maintenance and Service11
– CONTINUED –
■When Checking or Servicing
in the Engine Compartment
While the Engine Is Running
11-3. Maintenance TipsSome clips and fender linings must be
removed before replacing the air cleaner
element or specific bulbs.■ Removing and Reinstalling
Clips▼ Removing clips
There are several types of clips used for
your vehicle.
▽Type A and D clipsType A clips Type D clips
1. Turn the clips co
unterclockwise using
a flat-head screwdriver until the center
portion of the clip is raised.
2. Remove the clips with a flat-head
screwdriver using leverage.
CAUTION
 Do not contact the belt cover
while checking the components
in the engine compartment.
Doing so may cause your hand to
slip off the belt cover and result in
an unexpected injury. Do not touch the o il filter until the
engine has cooled down
completely. Doing so may result
in a burn or other injury. Note that
the oil filter becomes very hot
when the engine is running and
remains hot for so me time after
the engine has stopped.
WARNING
A running engine can be danger-
ous. Keep your fingers, hands,
clothing, hair and tools away from
the cooling fan, belts and any other
moving engine parts. Removing
rings, watches and ties is advisable.
B01036
B01536
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Engine Compartment Overview
345
Maintenance and Service11
11-5. Engine Compartment Overview
19
3
2
11
8
10
4
6
7
5
B02096
1) Battery (page 370)
2) Clutch fluid reservoir (MT models)
(page 354)
3) Brake fluid reservoir (page 353)
4) Windshield washer tank (page 366)
5) Engine oil filler cap (page 346)
6) Air cleaner case (page 350)
7) Engine oil filter (page 347)
8) Engine oil level gauge (page 346)
9) Engine coolant reservoir (page 349)
10) Radiator cap (page 349)
11) Main fuse box (page 371)
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Air Cleaner Element
350▼Changing the coolantIt 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”.
11-8. Air Cleaner ElementThe 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.
The air cleaner element is a dry type. It is
unnecessary to clean or wash the
element.
■ Replacing the Air Cleaner
ElementReplace the air cleaner element according
to the maintenance schedule in the
“Warranty and Maintenance Booklet”.
Under extremely dusty conditions, replace
it more frequently. It is recommended that
you always use genuine SUBARU parts.
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.
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