2020 SUBARU BRZ radiator

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1-7. Safety information
1
Before driving
BRZ_U
■
How to contact the vehicle manufact urer concerning modifications for
persons with disabilities that m ay affect the advanced airbag system
Changing or moving any parts of the front seats, rear seat, seatbelts, front
bumper, front side frame, radiator panel, instrument panel, combination
meter, steering wheel, steering column, tire, suspension or floor panel can
affect the operation of the SUBARU advanced airbag system. If you have
any questions, you may contact the following SUBARU distributors.

Subaru of America, Inc.
Customer Retailer Services Department
One Subaru Drive
P.O. Box 9103
Camden, NJ 08101-9877
1-800-SUBARU3 (1-800-782-2783)

Subaru Hawaii
2850 Pukoloa Street, Ste. 101, Honolulu,
HI 96819
877-215-0338

Shen’s Corporation dba Prestige Automobile
491 East Marine Corps Drive, Dededo,
Guam 96929
671-633-2698

Trebol Motors
P.O. Box 11204, San Juan, Puerto Rico
00910
787-793-2828

Subaru Canada, Inc.
Consumer Support Department
560 Suffolk Court, Mississauga, Ontario
L5R 4J7
1-800-894-4212
There are currently no SUBARU distributor s in any other U.S. territories. If
you are in such an area, please contact the SUBARU distributor or dealer
from which you bought your vehicle.

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4-2. Maintenance
4
Maintenance and care
BRZ_U
General maintenance
Engine compartment
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 approved flushing systems use chemicals and/or sol-
vents 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.
ItemsCheck points
Battery Check the connections.
(→ P. 364)
Brake fluid At the correct level? ( →P. 362)
Engine coolant At the correct level? ( →P. 360)
Engine oil At the correct level? ( →P. 357)
Exhaust system No fumes or strange sounds?
Radiator/condenser/hoses Not blocked with foreign matter?
(
→P. 362)
Washer fluid At the correct level? ( →P. 368)
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Warranty and Maintenance
Booklet” (except for Canada) or “Warranty and Service Booklet” (for
Canada). It is recommended that any problem you notice should be
brought to the attention of your SUBARU dealer or qualified service
shop for advice.

352 4-3. Do-it-yourself maintenance
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ItemsParts and tools
Light bulbs ( →P. 401) • Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
Radiator and condenser (→ P. 362)

Tire inflation pressure ( →P. 378) • Tire pressure gauge
• Compressed air source
Washer fluid (
→P. 368) • Water washer fluid containing anti-
freeze (for winter use)
• Funnel

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4-3. Do-it-yourself maintenance
4
Maintenance and care
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WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■
When working in the engine compartment
● Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric cooling fans or radiator grille
Vehicles without a keyless access with push button start system: Be sure the
engine switch is off. With the engine switch in the “ON” position, the electric
cooling fans may automatically start to run if the air conditioning is on and/or
the coolant temperature is high. ( →P. 362)
Vehicles with a keyless access with push button start system: Be sure the
push-button ignition switch is off. With the push-button ignition switch in
“ON” mode, the electric cooling fans may automatically start to run if the air
conditioning is on and/or the coolant temperature is high. ( →P. 362)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.
CAUTION
■If you remove the air cleaner element
Driving with the air cleaner element removed may cause excessive engine
wear due to dirt in the air. Also a backfire could cause a fire in the engine
compartment.

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4-3. Do-it-yourself maintenance
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Engine compartment
Battery (→P. 364)
Engine oil level dipstick (→ P. 357)
Brake fluid reservoir (→ P. 362)
Engine oil filler cap (→ P. 358)Washer fluid tank
(→ P. 368)
Electric cooling fans
Condenser ( →P. 362)
Radiator ( →P. 362)
Engine coolant reservoir (→ P. 360)
Fuse box ( →P. 393)

360 4-3. Do-it-yourself maintenance
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Engine coolantThe coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold. Reservoir cap
“FULL”
“LOW”
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
CAUTION
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you fill the oil.
● Be sure the engine oil filler cap is properly tightened.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have your SUBARU dealer pressure test the cap
and check for leaks in the cooling system.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
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■
Coolant selection
Only use SUBARU Super Coolant or similar high-quality ethylene glycol-
based non-silicate, non-amine, non-nitr ite, and non-borate coolant with long-
life hybrid organic acid technology.
SUBARU Super Coolant is a mixture of 50% coolant and 50% deionized
water. (Enabled: -31 °F [-35 °C])
For more details about engine cool ant, contact your SUBARU dealer.
WARNING
■When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
CAUTION
■When adding engine coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it damaging parts or paint.

362 4-3. Do-it-yourself maintenance
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Radiator and condenserCheck the radiator and condenser and clear away any foreign
objects.
If either of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle checked by your SUBARU dealer.
Brake fluid■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
“MAX”
“MIN”
WARNING
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.