2018 SUBARU BRZ cooling

484 5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
CAUTION
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fans
or any of the belts when connecting or disconnecting them.
■ When closing the doors
While pushing the door glass towards the inside of the vehicle, slowly close
the door.
Because the side window open/close function linked to door operation will
not operate, the window may interfere with the vehicle body, possibly
scratching both the vehicle body and window, or even shattering the window.

5
When trouble arises
485
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
If your vehicle overheats
Correction proceduresStop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the engine.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your
SUBARU dealer.
The following may indicate that your vehicle is overheating.
●Vehicles with a monochrome multi-information display: The
engine coolant temperature gauge ( →P. 199) enters the red
zone or a loss of engine power is experienced (for example, the
vehicle speed does not increase).
Vehicles with a color multi-information display: The high engine
coolant temperature warning light ( →P. 203) flashes or illumi-
nates or a loss of engine power is experienced (for example, the
vehicle speed does not increase).
● Steam comes out from under the hood.
STEP 1
STEP 2
STEP 3

486 5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Confirm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating: Stop the engine immediately and contact your SUBARU
dealer.
If the fans are operating: Have the vehicle inspected at the nearest SUBARU dealer.
STEP 4
STEP 5
STEP 6
STEP 7

5
When trouble arises
487
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
WARNING
■
To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
CAUTION
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additives.

498 6-1. Specifications
BRZ_U (A4450BE-A)
Cooling system
Ignition system
CapacityVehicles with an automatic transmission
7.9 qt. (7.5 L, 6.6 Imp. qt.)
Vehicles with a manual transmission 7.6 qt. (7.2 L, 6.3 Imp. qt.)
Coolant type Use either of the following.
• SUBARU Super Coolant
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technol-
ogy
Do not use plain water alone.
Spark plug
Make
Gap DENSO ZXE27HBR8
0.031 in. (0.8 mm)
CAUTION
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

556 Alphabetical index
BRZ_U (A4450BE-A)
Brightness controlInstrument panel light control .................................201
Care Alcantara
®............................. 346
Alloy wheels .......................... 337
Exterior.................................. 336
Interior ................................... 342
Seatbelts ............................... 343
Cargo capacity ......................... 272
Chains ....................................... 279
Child restraint system
Booster seats, definition ............................. 141
Booster seats, installation ........................... 145
Convertible seats, definition ............................. 141
Convertible seats, installation ........................... 145
Front passenger occupant detection system .................131
Infant seats,
definition ............................. 141
Infant seats, installation ........................... 145
Installing CRS with LATCH anchors .................. 146
Installing CRS with
seatbelts ............................. 148
Installing CRS with top tether straps .................. 151 Child safety
Airbag precautions ................ 125
Battery precautions ....... 371, 483
Child restraint system ........... 141
How your child should wear the seatbelt .................. 62
Installing child restraints........ 145
Power window lock switch ...... 74
Power window precautions ........................... 77
Removed key battery precautions ......................... 395
Seat heater precautions ........ 319
Seatbelt guide ......................... 61
Seatbelt precautions ............... 64
Trunk precautions ................... 49
Cleaning Alcantara
®............................. 346
Alloy wheels .......................... 337
Exterior.................................. 336
Interior ................................... 342
Seatbelts ............................... 343
Clock ......................................... 315
Condenser ................................ 366
Console tray ............................. 311
Coolant Capacity ................................ 498
Checking ............................... 364
Cooling system Engine overheating ............... 485
Cruise control .......................... 243
Cup holders .............................. 311
Curtain airbags .......................... 93
Customizable features ............ 522
Daytime running light
system .................................... 235
Defogger Rear window ......................... 302
Side mirror ............................ 302
Dimensions .............................. 492
Dinghy towing .......................... 283
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