2012 TOYOTA AURIS HYBRID coolant reservoir

373
4-3. Do-it-yourself maintenance
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Maintenance and care
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Engine compartment
Engine coolant reservoir
(P. 377)
Engine oil level dipstick
(P. 374)
Engine oil filler cap
(P. 375)
Power control unit coolant
reservoir (P. 377)Fuse box (P. 400)
Radiator (P. 379)
Condenser (P. 379)
Electric cooling fans
Washer fluid tank (P. 379)

377 4-3. Do-it-yourself maintenance
4
Maintenance and care
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Engine/power control unit coolant
The coolant level is satisfactory if it is between the “FULL” (full) and
“LOW” (low) lines on the reservoir when the hybrid system is cold.
Engine coolant reservoir
Reservoir cap
Full
Low
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
Power control unit coolant reservoir
Reservoir cap
Full
Low
If the level is on or below the “L”
line, add coolant up to the “F” line.
NOTICE
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, as the engine could be damaged.
Check the oil level on the dipstick every time you refill the vehicle.
Be sure the engine oil filler cap is properly tightened.

378 4-3. Do-it-yourself maintenance
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If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, 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.
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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Enabled: -35C [-31F])
For more details about coolant, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
CAUTION
When the hybrid system is hot
Do not remove the 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.
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 damage to parts or paint.

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485 5-2. Steps to take in an emergency
When trouble arises
UK_AURIS_HV_EE
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.
With a hybrid vehicle, there are times when the gasoline engine automati-
cally starts to run or the cooling fans suddenly start to operate. Do not
touch or approach the rotating parts of the belt or fans. Doing so may lead
to fingers, clothes or tools getting caught, resulting in an accidental injury.
Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.