cooling TOYOTA YARIS 2017 User Guide

3757-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52J20E
Check the radiator, condenser and intercooler and clear away any for-
eign objects.
If any of the above parts is extremely dirty or you are not sure of their
condition, have your vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
WARNING
■ When the engine is hot
Do not remove the radiator cap (gasoline engine), or the engine coolant res-
ervoir cap (diesel engine).
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 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 it from damaging parts or paint.
Radiator, condenser and intercooler
WARNING
■ When the engine is hot
Do not touch the radiator, condenser or intercooler as they may be hot and
cause serious injuries, such as burns.

4928-2. Steps to take in an emergency
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WARNING
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with anything other than the intended ter-
minal.
● Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.
■ Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery:
● When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
● Do not lean over the battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
● Do not allow children near the battery.
■ To prevent damage to the vehicle
Do not pull- or push-start the vehicle as the three-way catalytic converter
(gasoline engine) or catalytic conv erter (diesel engine) may overheat and
become a fire hazard.
NOTICE
■ When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or engine drive belt.

4938-2. Steps to take in an emergency
8
When trouble arises
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If your vehicle overheats
●The high engine coolant temperature warning light (P. 439)
comes on or flashes, or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)
● Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, 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 (radiator) for any leaks.
If a large amount of coolant leaks, immediately contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
The following may indicate that your vehicle is overheating:
Correction procedures
1
2
3
Gasoline engineDiesel engine
Radiator
Cooling fan
Radiator
Cooling fan
1
2
1
2

4958-2. Steps to take in an emergency
8
When trouble arises
YARIS_F_OM_Europe_OM52J20E
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 immedi-
ately 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 and contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
6
7

4968-2. Steps to take in an emergency
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WARNING
■To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● 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.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts while the engine is operating.
● Do not loosen the radiator cap or the coolant reservoir cap while the
engine and radiator are hot.
NOTICE
■ When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. 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.

5149-1. Specifications
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■Gasoline engine
■Diesel engine
Cooling system
Capacity
(Reference)
1KR-FE
engine4.5 L (4.8 qt., 4.0 Imp.qt.)
1NR-FE
engine
Multidrive
4.8 L (5.1 qt., 4.2 Imp.qt.)
Manual transmission
4.6 L (4.9 qt., 4.0 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Capacity
(Reference)
Without a power heater
4.5 L (4.8 qt., 4.0 Imp.qt.)
With a power heater
4.9 L (5.2 qt., 4.3 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.

536Alphabetical index
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Care ................................... 350, 353
Aluminum wheels .................. 351
Exterior.................................. 350
Interior ................................... 353
Seat belts .............................. 354
CD player .................................. 289
Chains ....................................... 274
Child restraint system ............... 55
Baby seats definition ............... 56
Baby seats installation ............ 66
Child seats definition ............... 56
Child seats installation ...... 66, 67
Installing CRS with ISOFIX
rigid anchors ......................... 69
Installing CRS with
seat belts .............................. 66
Installing CRS with top strap ... 70
Junior seats definition ............. 56
Junior seats installation........... 68
Child safety ................................ 54
Airbag precautions .................. 41
Back door precautions .......... 124
Battery precautions ............... 377
Child restraint system ............. 55
How your child should wear
the seat belt .......................... 35
Installing child restraints.......... 65
Power window lock switch .... 154
Power window precautions ... 157
Rear door child-protectors .... 119
Removed key battery
precautions ......................... 404
Seat belt precautions .............. 36
Seat heater precaution.......... 331
Child-protectors....................... 119
Cigarette lighter ....................... 345
Cleaning ........................... 350, 353
Aluminum wheels.................. 351
Exterior ................................. 350
Interior................................... 353
Seat belts .............................. 354
Clock ........................................... 95
Clutch ....................................... 516
Condenser ................................ 375
Coolant ..................................... 374
Capacity ................................ 514
Checking ............................... 374
Preparing and checking
before winter....................... 272
Cooling system ........................ 374
Engine overheating ............... 493
CRS (Child Restraint
System) .................................... 55
Cruise control .......................... 249
Warning lights ....................... 442
Cup holders.............................. 336
Curtain shield airbags ............... 39
Customizable features ............ 524
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