engine coolant SUBARU BRZ 2017 1.G User Guide

341 4-3. Do-it-yourself maintenance
4
Maintenance and care
■Coolant selection
Only use SUBARU Super Coolant or similar high-quality ethylene glycol-
based non-silicate, non-amine, non-nitrite, 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: -31qF [-35qC])
For more details about engine coolant, 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 straight 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.

400
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your SUBARU dealer as soon as
possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Vehicles with a monochrome multi-information display: The
engine coolant temperature gauge needle continually points
higher than normal
●Vehicles with a color multi-information display: The high
engine coolant temperature warning light flashes or illumi-
nates
■Audible symptoms
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
■Operational symptoms
●Engine missing, stumbling or running rough
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

5
When trouble arises
403 5-2. Steps to take in an emergency
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your SUBARU dealer.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
(Flashes or illu-
minates in red)High engine coolant temperature warning light (if
equipped)
Indicates that the engine is almost overheating. (oP. 458)
As the engine coolant temperature increases, this warning
light will change from flashing to constantly illuminated.

458
5-2. Steps to take in an emergency
If your vehicle overheats
Correction procedures
Stop 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 (oP. 194) 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 (oP. 198) 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

5
When trouble arises
459 5-2. Steps to take in an emergency
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

460 5-2. Steps to take in an emergency
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.

470 6-1. Specifications
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 typeUse 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
GapDENSO 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.

486 6-1. Specifications
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately or in combination, can cause heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a
tire may be inflated, shown on the sidewall of
the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a
manufacturer.
Accessory weightThe combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, 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)
Curb weightThe weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded
vehicle weightThe sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

526 Alphabetical index
Brightness control
Instrument panel light
control .................................196
Care
Alcantara
®............................. 322
Aluminum wheels .................. 315
Exterior.................................. 314
Interior ................................... 318
Seatbelts ............................... 319
Cargo capacity ......................... 263
Chains ....................................... 270
Child restraint system
Booster seats,
definition ............................. 139
Booster seats,
installation ........................... 143
Convertible seats,
definition ............................. 139
Convertible seats,
installation ........................... 143
Front passenger occupant
detection system .................129
Infant seats,
definition ............................. 139
Infant seats,
installation ........................... 143
Installing CRS with
LATCH anchors .................. 144
Installing CRS with
seatbelts ............................. 146
Installing CRS with
top tether straps .................. 149Child safety
Airbag precautions ................ 123
Battery precautions ....... 347, 456
Child restraint system ........... 139
How your child should
wear the seatbelt .................. 62
Installing child restraints........ 143
Power window lock switch ...... 72
Power window
precautions ........................... 75
Removed key battery
precautions ......................... 370
Seat heater precautions ........ 309
Seatbelt guide ......................... 61
Seatbelt precautions ............... 64
Trunk precautions ................... 49
Cleaning
Alcantara
®............................. 322
Aluminum wheels.................. 315
Exterior.................................. 314
Interior ................................... 318
Seatbelts ............................... 319
Clock ......................................... 305
Condenser ................................ 342
Console tray ............................. 301
Coolant
Capacity ................................ 470
Checking ............................... 340
Cooling system
Engine overheating ............... 458
Cruise control .......................... 237
Cup holders .............................. 301
Curtain airbags .......................... 91
Customizable features ............ 493
Daytime running light
system .................................... 230
Defogger
Rear window ......................... 292
Side mirror ............................ 292
Dimensions .............................. 464
Dinghy towing .......................... 274
C
D

527 Alphabetical index
Display
Drive information .................. 216
Multi-information
display ........................ 205, 213
Trip information .................... 206
Warning messages............... 414
Do-it-yourself maintenance .... 331
Door courtesy lights
Door courtesy lights.............. 296
Wattage ................................ 475
Doors
Door lock .................... 25, 38, 43
Door windows ......................... 72
Side mirrors ............................ 69
Drive information .................... 216
Driver's seatbelt
reminder light ........................ 406
Driving
Break-in tips ......................... 157
Correct posture....................... 89
Procedures ........................... 154
Winter drive tips.................... 268
Electric power steering........... 251
Emergency, in case of
If the access key does
not operate properly........... 449
If the engine will not start...... 444
If the select lever cannot
be shifted from P ................ 447
If the vehicle has a
discharged battery ............. 453
If the warning buzzer
sounds ............................... 402
If the warning light
turns on .............................. 402
If the warning message
is displayed ........................ 414
If you have a flat tire ............ 431
If you lose your keys............. 448
If you think something is
wrong ................................. 400If your vehicle becomes
stuck ...................................461
If your vehicle needs to
be towed .............................393
If your vehicle overheats .......458
Engine
Compartment ........................336
Engine hood ..........................334
Engine switch ................169, 178
How to start the
engine .........................169, 178
Identification number .............465
If the engine will not start ......444
Ignition switch................169, 178
Overheating...........................458
Engine coolant
Capacity ................................470
Checking ...............................340
Engine coolant
temperature gauge ........194, 218
Engine hood .............................334
Engine immobilizer system.......80
Engine oil
Capacity ................................468
Checking ...............................337
Preparing and checking
before winter .......................268
Engine switch ...................169, 178
Engine switch light ..................296
Event data recorder ...................18
Floor mat...................................310
Fluid
Brake .....................................342
Washer ..................................348
Fog lights
Switch....................................233
Front fog lights
Switch....................................233
Front passenger occupant
detection system ...................129
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