2017 SUBARU BRZ radiator cap

336
4-3. Do-it-yourself maintenance
Engine compartment
Battery (oP. 344)
Engine oil level dipstick
(oP. 3 3 7 )
Brake fluid reservoir
(oP. 342)
Engine oil filler cap
(oP. 3 3 8 )Washer fluid tank
(oP. 3 4 8 )
Electric cooling fans
Condenser (oP. 3 4 2 )
Radiator (oP. 3 4 2 )
Engine coolant reservoir
(oP. 3 4 0 )
Fuse box (oP. 3 7 2 )

340 4-3. Do-it-yourself maintenance
Engine coolant
The 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.

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.

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.

529 Alphabetical index
Language (multi-information
display) .................................. 223
License plate lights
Replacing light bulbs ............ 380
Wattage ................................ 475
Light bulbs
Replacing ............................. 380
Wattage ................................ 475
Lights
Door courtesy lights.............. 296
Engine switch light................ 296
Fog light switch..................... 233
Hazard light switch ............... 392
Hazard warning flasher
switch ................................. 392
Headlights switch ................. 228
Interior light switch................ 297
Replacing light bulbs ............ 380
Trunk light............................... 48
Turn signal lever ................... 191
Vanity lights .......................... 304
Wattage ................................ 475
Load capacity .......................... 267
Maintenance
Do-it-yourself
maintenance ...................... 331
General maintenance ........... 327
Maintenance data................. 464
Maintenance requirements ... 324
Manual air conditioning
system ................................... 276
Manual transmission .............. 188
Meter
Indicators.............................. 198
Instrument panel
light control......................... 196
Meters .................................. 194
Multi-information
display ........................ 205, 213
Settings ........................ 205, 223
Warning lights....................... 402
Warning messages............... 414Microphone...............................295
Mirrors
Inside rear view mirror.............68
Side mirror heater .................292
Side mirrors .............................69
Vanity mirrors ........................304
Multi-information display
Drive information ...................216
G-force display ......................219
Language ..............................223
Multi-information
display.........................205, 213
Settings .................................223
Trip information .....................206
Warning messages ...............414
Noise from under vehicle ..........16
Odometer ..........................205, 225
Oil
Engine oil ..............................337
Opener
Engine hood ..........................334
Fuel filler lid .............................76
Trunk lid ..................................46
Outside rear view mirrors
Adjusting and folding ...............69
Outside temperature
display ............................205, 225
Overheating, Engine ................458
Paddle shift levers ...................184
Parking brake ...........................192
Parking lights
Switch....................................228
Power outlets ...........................306
Power windows ..........................72
Radiator ....................................342
Rear seats...................................56
Rear side marker lights
Switch....................................228L
M
N
O
P
R