radiator TOYOTA IQ 2013 Owners Manual

190
4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
BatteryMaintenance-free. (P. 216)
Brake fluid At the correct level? (P. 215)
Engine coolant At the correct level? (P. 213)
Engine oil At the correct level? (P. 209)
Exhaust system No fumes or strange sounds?
Radiator/condenser/hoses Not blocked with foreign matter?
(P. 214)
Washer fluid At the correct level? (P. 218)
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.

195
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. 251)• Bulb with same number and watt-
age rating as original
• Flathead screwdriver
Radiator and condenser (P. 214) 
Tire inflation pressure (
P. 228) • Tire pressure gauge
• Compressed air source
Washer fluid
(P. 218) • Water washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding washer fluid)

196 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. 214)
■ 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.

208
4-3. Do-it-yourself maintenance
Engine compar tment
Engine oil filler cap ( P. 210)
Engine oil level dipstick ( P. 209)
Battery ( P. 216)
Brake fluid reservoir ( P. 215)
Fuse box ( P. 240)Washer fluid tank ( P. 218)
Radiator ( P. 214)
Electric cooling fan
Condenser ( P. 214)
Engine coolant reservoir ( P. 213)
Fuse box ( P. 240)

213
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.

214 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.

308
5-2. Steps to take in an emergency
If your vehicle overheats
In the following cases, the vehicle may be overheating.
●High engine coolant temperature warning light ( P. 274) flashes
or comes on, and engine output falls (There is no speed).
● Steam is coming out from the engine compartment.
Perform the following steps.
Stop the vehicle in a safe place, turn off the air conditioning
system, and stop the engine.
If steam is coming out:
When no more steam is coming out has been confirmed,
carefully open the hood.
If there is no steam coming out:
Carefully open the hood. After the engine has cooled
down sufficiently, inspect the
radiator core (radiator), hoses,
etc. for any leaks.
If there is a large quantity of
engine coolant leaking, imme-
diately contact your Scion
dealer.
Inspect the amount of engine
coolant by checking if the res-
ervoir level is between FULL
and LOW lines.
Engine coolant reservoir
FULL
LOW

5
When trouble arises
309
5-2. Steps to take in an emergency
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable. (
P. 320)
Start the engine, allow the ai r conditioning system to run
and check that the electric coo ling fan is operating, as well
as double check that there are no leaks at the radiator core
and hoses.
Immediately after starting, after the engine has gotten cold, the
fan operates by turning on the air conditioning system. Check for
fan sound and wind. If it is difficult to determine, repeatedly turn
the air conditioning system on and off.
(However, in cold weather where temperatures go below freezing,
the fan will not operate.)
If the fan does not operate:
Stop the engine immediately and contact your Scion dealer.
If the fan operates:
Have the vehicle inspected at the nearest Scion dealer.

310 5-2. Steps to take in an emergency
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 injury such as burns.
● Keep hands and clothing away from the fan and other belts while the
engine is running.
● Do not loosen 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.
NOTICE
■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.

364 Alphabetical index
Radiator .................................... 214
Rear seatFolding down ...........................38
Rear side marker lights Replacing light bulbs ............. 251
Switch.................................... 130
Wattage ................................. 324
Rear turn signal lights
Indicator ................................ 122
Lever ..................................... 115
Replacing light bulbs ............. 251
Switch.................................... 115
Wattage ................................. 324
Rear window defogger ............ 162
Rear window wiper .................. 137
Replacing Key battery ............................ 238
Fuses .................................... 240
Light bulbs ............................. 251
Tires .............................. 202, 220
Reporting safety defects for U.S. owners ...................... 344
Seat belts ALR .........................................43
Automatic Locking Retractor ...43
Child restraint system installation .......................85, 90
Cleaning and maintaining...... 186
ELR .........................................43
Emergency Locking Retractor .............................. 43
How to wear your seat belt......41
How your child should wear the seat belt ..........................44
Pregnant women, proper seat belt use .........................44
Reminder light ....................... 276
Seat belt extenders .................44
Seat belt pretensioners ...........43 Seats
Adjustment .............................. 35
Adjustment precautions .......... 37
Child seats/child restraint system installation .......... 85, 90
Cleaning ................................ 185
Front seat adjustment ............. 35
Front seat adjustment precautions ........................... 37
Properly sitting in the seat....... 63
Service reminder
indicators .............................. 121
Shift lever Automatic transmission ......... 114
If the shift lever cannot be
shifted from P ..................... 303
Shift lock system ..................... 303
Side airbags ............................... 65
Side marker lights Replacing light bulbs ............. 251
Switch ................................... 130
Wattage................................. 324
Side mirror
Adjusting ................................. 50
Defogger ............................... 163
Folding .................................... 51
Spark plug ................................ 321
Specifications .......................... 316
Speedometer ............................ 119
Steering wheel Adjustment .............................. 47
Column lock release ............. 112
Electric power steering.......... 139
EPS ....................................... 139
Specification.......................... 323
Warning light ......................... 275R
S