2012 TOYOTA AURIS engine coolant

5056-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12E33E)
6
Maintenance and care
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Except 1AD-FTV engine
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.
1AD-FTV engine
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the hybrid system is cold.
Engine coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.
Engine coolant (except hybrid model)
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Coolant (hybrid model)
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5066-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12E33E)
Power control unit coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.
Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35C [-31F])
For more details about engine coolant, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
If the coolant level drops within a short time of replenishing
Except hybrid model: Visually check the radiator, hoses, engine coolant res-
ervoir caps, drain cock and water pump.
Hybrid model: Visually check the radiator, hoses, engine/power control unit
coolant reservoir caps, drain cock and water pump.
If you cannot find a leak, have any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
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CAUTION
When the engine is hot (except hybrid model)
Do not remove the engine 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.
When the hybrid system is hot (hybrid model)
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

5076-3. Do-it-yourself maintenance
UK_AURIS/AURIS_HV_EE (OM12E33E)
6
Maintenance and care
Check the radiator, condenser and intercooler and clear away any for-
eign objects.
If any of the above parts are 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.
NOTICE
When adding 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 from damaging parts or paint.
Radiator, condenser and intercooler
CAUTION
When the engine is hot (except hybrid model)
Do not touch the radiator, condenser or intercooler as they may be hot and
cause serious injuries, such as burns.
When the hybrid system is hot (hybrid model)
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

5837-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
7
When trouble arises
Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
Flat-looking tires or uneven tire wear
Except hybrid model (vehicles without a multi-information display):
High engine coolant temperature warning light comes on.
Except hybrid model (vehicles with a multi-information display):
High engine coolant temperature gauge needle continually points
higher than normal.
Hybrid model: The high engine coolant temperature display is
shown on the multi-information display.
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the engine
Engine missing, stumbling or running roughly
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
If you think something is wrong
If you notice any of the following symptoms, your vehicle proba-
bly needs adjustment or repair. Contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped pro-
fessional as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5867-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
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 any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Stop the vehicle immediately.
Warning lightWarning light/Details
Charging system warning light (vehicles with a drive
monitor display)
Indicates a malfunction in the vehicle’s charging system
Low engine oil pressure warning light (vehicles with a
drive monitor display)
Indicates that the engine oil pressure is too low.
andHigh engine coolant temperature warning light (vehicles
with a drive monitor display)
Indicates that the engine is almost overheating. (P. 685)

6857-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
7
When trouble arises
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam subsides and
then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the temperature of the engine (shown on the instrument
panel) begins to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radia-
tor) for any leaks.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is unavail-
able. (P. 709)
If your vehicle overheats (except hybrid
model)
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6867-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
Have the vehicle inspected at the nearest any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
Overheating
If you observe the following, your vehicle may be overheating:
Vehicles without a multi-information display: The high engine coolant tem-
perature warning light comes on or a loss of power is experienced.
Vehicles with a multi-information display: The high engine coolant tempera-
ture gauge enters the red zone or a loss of power is experienced.
Steam comes out from under the hood.
CAUTION
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 away from the fans, etc. while the engine is oper-
ating.
Do not loosen 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 commercially available coolant additives.

6877-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
7
When trouble arises
The high engine coolant temperature display is shown on the multi-
information display:
The engine may be overheating.
“Hybrid System Overheat” is shown on the multi-information dis-
play:
The power control unit may be overheating.
If the high engine coolant temperature display is shown on the
multi-information display
Stop the vehicle in a safe place and turn off the air conditioning
system.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the steam
subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the high engine coolant temperature display disap-
pears and then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional.
If your vehicle overheats (hybrid model)
The following may indicate that your vehicle is overheating:
Correction procedures
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