radiator TOYOTA IQ 2014 Owners Manual

192
4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
BatteryMaintenance-free. (P. 218)
Brake fluid At the correct level? (P. 217)
Engine coolant At the correct level? (P. 215)
Engine oil At the correct level? (P. 211)
Exhaust system No fumes or strange sounds?
Radiator/condenser/hoses Not blocked with foreign matter?
(P. 216)
Washer fluid At the correct level? (P. 220)
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Owner’s warranty Informa-
tion Booklet” or “Owner’s Manual Supplement/Scheduled
Maintenance Guide”. It is recommended that any problem you notice
should be brought to the attention of your Scion dealer or qualified
service shop for advice.

197
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
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 on 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.
ItemsParts and tools
Light bulbs (P. 255)
• Bulb with same number and watt-
age rating as original
• Flathead screwdriver
Radiator and condenser (P. 216)
Tire inflation pressure ( P. 230)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 220)
• Water washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding washer fluid)

198 4-3. Do-it-yourself maintenance
CAUTION
■When working on the engine compartment
●Take care because brake fluid can harm your hands or eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience discomfort, see a doctor.
■ When working near the electric cooling fan or radiator grille
Be sure the engine switch is in the LOCK position.
With the engine switch in the ON position, the electric cooling fan may \
auto-
matically start to run if the air condi tioning system is on and/or the coolant
temperature is high. ( P. 216)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.
NOTICE
■If you remove the air cleaner
Driving with the air cleaner removed may cause excessive engine wear due
to dirt in the air.

210
4-3. Do-it-yourself maintenance
Engine compar tment
Engine oil filler cap ( P. 212)
Engine oil level dipstick ( P. 2 11 )
Battery ( P. 218)
Brake fluid reservoir ( P. 217)
Fuse box ( P. 244)Washer fluid tank ( P. 220)
Radiator ( P. 216)
Electric cooling fan
Condenser ( P. 216)
Engine coolant reservoir ( P. 215)
Fuse box ( P. 244)

215
4-3. Do-it-yourself maintenance
4
Maintenance and care
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.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have your Scion dealer pressure test the cap and
check for leaks in the cooling system.
■ Coolant selection
Only use “Toyota Super Long Life 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.
Except Canada: “Toyota Super Long Life Coolant” is a mixture of 50% cool- ant and 50% deionized water. (Enabled: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 F [-42 C])
For more details about engine coolant, contact your Scion dealer.

216 4-3. Do-it-yourself maintenance
Radiator and condenserCheck the radiator and condenser and clear any foreign objects.
If either of the above parts are ex tremely dirty or you are not sure of
their condition, have your vehicl e checked by your Scion dealer.
CAUTION
■When the engine is hot
Do not remove the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■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 damage to parts or paint.
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and may cause
serious injuries, such as burns.

312
5-2. Steps to take in an emergency
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 fan
If a large amount of coolant leaks,
immediately contact your Scion
dealer.
The coolant level is satisfactory if
it is between the FULL and LOW
lines on the reservoir.Reservoir
FULL
LOW
Radiator cap
The following may indicate that your vehicle is overheating.
● The high engine coolant te mperature warning light (P. 278)
comes on or flashes, or a loss of engine power is experienced.
(For example, the vehicl e speed does not increase.)
● Steam comes out from under the hood.

5
When trouble arises
313
5-2. Steps to take in an emergency
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 fan operates and to check for
coolant leaks from the radiator or hoses.
The fan operates when the air conditioning system is turned on
immediately after a cold start. Confirm that the fan is 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 fan may not operate in freezing temperatures.)
If the fan is not operating: Stop the engine immediately a nd contact your Scion dealer.
If the fan is operating: Have the vehicle inspected at the nearest Scion dealer.
CAUTION
■ 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 fan 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.

368 Alphabetical index
Radiator .................................... 216
Rear seatFolding down ...........................40
Rear side marker lights Replacing light bulbs ............. 255
Switch.................................... 132
Wattage ................................. 328
Rear turn signal lights
Indicator ................................ 124
Lever ..................................... 117
Replacing light bulbs ............. 255
Switch.................................... 117
Wattage ................................. 328
Rear window defogger ............ 164
Rear window wiper .................. 139
Replacing Key battery ............................ 240
Fuses .................................... 244
Light bulbs ............................. 255
Tires .............................. 204, 222
Reporting safety defects for U.S. owners ...................... 348
Seat belts ALR .........................................45
Automatic Locking Retractor ...45
Child restraint system installation .......................87, 92
Cleaning and maintaining...... 188
ELR .........................................45
Emergency Locking Retractor .............................. 45
How to wear your seat belt......43
How your child should wear the seat belt ..........................46
Pregnant women, proper seat belt use .........................46
Reminder light ....................... 280
Seat belt extenders .................46
Seat belt pretensioners ...........45 Seats
Adjustment .............................. 37
Adjustment precautions .......... 39
Child seats/child restraint system installation .......... 87, 92
Cleaning ................................ 187
Front seat adjustment ............. 37
Front seat adjustment precautions ........................... 39
Properly sitting in the seat....... 65
Service reminder
indicators .............................. 123
Shift lever Automatic transmission ......... 116
If the shift lever cannot be
shifted from P ..................... 307
Shift lock system ..................... 307
Side airbags ............................... 67
Side marker lights Replacing light bulbs ............. 255
Switch ................................... 132
Wattage................................. 328
Side mirror
Adjusting ................................. 52
Defogger ............................... 165
Folding .................................... 53
Spark plug ................................ 325
Specifications .......................... 320
Speedometer ............................ 121
Steering wheel Adjustment .............................. 49
Column lock release ............. 114
Electric power steering.......... 141
EPS ....................................... 141
Specification.......................... 327
Warning light ......................... 279R
S