coolant level TOYOTA AYGO 2017 Owners Manual (in English)

3247-2. Maintenance
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■ Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
● Engine misses, stumbling or pinging
● Appreciable loss of power
● Strange engine noises
● A fluid leak under the vehicle (However, water dripping from the air condi-
tioning system after use is normal.)
● Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked
immediately.)
● Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
● Vehicle pulls to one side when driven straight on a level road
● Strange noises related to suspension movement
● Loss of brake effectiveness, spongy feeling brake pedal or clutch pedal,
pedal almost touches the floor, vehicle pulls to one side when braking
● Engine coolant temperature continually higher than normal
If you notice any of these clues, take your vehicle to any authorized Toyota
dealer or repairer, or another dul y qualified and equipped professional as
soon as possible. Your vehicle may need adjustment or repair.
WARNING
■ If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and
possible death or serious injury.
■ Handling of the battery
Battery posts, terminals and related accessories contain lead and lead com-
pounds which are known to cause brain damage. Wash your hands after
handling. ( P. 338)

3257-3. Do-it-yourself maintenance
7
Maintenance and care
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Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
Battery condition
( P. 338)
•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
Engine coolant
level ( P. 336)
1KR engine
• “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 pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
HM01 engine
• “Toyota Genuine Premium Long Life Coolant
2WZ-TV” or a similar hi gh quality ethylene glycol-
based non-silicate, non-amine, non-nitrite and non-
borate coolant with long-life hybrid organic acid tech-
nology
“Toyota Genuine Premium Long Life Coolant
2WZ-TV” is pre-mixed with 50% coolant and 50%
deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 333)
1KR engine
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
HM01 engine
• “TOTAL ACTIVA”, “TOTAL QUARTZ” engine oil or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 3 5 7 )• Fuse with same amperage rating as original
Light bulbs
( P. 365)
• Bulb with same number and wattage rating as origi-
nal
• Phillips-head screwdriver
• Flathead screwdriver•Wrench

3277-3. Do-it-yourself maintenance
7
Maintenance and care
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WARNING
■When working near the electric cooling fans or radiator grille
Vehicles without a smart entry & start system
Be sure the engine switch is off. With the engine switch in the “ON” position,
the electric cooling fan may automatical ly start to run if the air conditioning
is on and/or the coolant temperature is high. ( P. 338)
Vehicles with a smart entry & start system
Be sure the engine switch is off. With the engine switch in IGNITION ON
mode, the electric cooling fan may automatically start to run if the air condi-
tioning is on and/or the coolant temperature is high. ( P. 338)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.,
from getting in your eyes.
NOTICE
■ If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.
■ If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

3317-3. Do-it-yourself maintenance
7
Maintenance and care
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Engine compartment
1KR engine
Engine oil filler cap
( P. 334)
Fuse box ( P. 357)
Battery ( P. 338)
Engine coolant reservoir
( P. 336)
Radiator ( P. 338)
Electric cooling fan
Condenser ( P. 338)
Engine oil level dipstick
( P. 333)
Washer fluid tank ( P. 342)
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3327-3. Do-it-yourself maintenance
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HM01 engine
Engine coolant reservoir
( P. 336)
Engine oil filler cap
( P. 334)
Fuse box ( P. 357)
Battery ( P. 338)
Radiator ( P. 338)
Electric cooling fan
Condenser ( P. 338)
Engine oil level dipstick
( P. 333)
Washer fluid tank ( P. 342)
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3367-3. Do-it-yourself maintenance
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The coolant level is satisfactory if it is between the “FULL”, “F” or
“MAX” and “LOW” or “MIN” lines on the reservoir when the engine is
cold.
1KR engine (type A)
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
1KR engine (type B)
Reservoir cap
“F” line
“LOW” line
If the level is on or below the
“LOW” 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, or 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.
Engine coolant
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3377-3. Do-it-yourself maintenance
7
Maintenance and care
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HM01 engine
Reservoir cap
“MAX” line
“MIN” line
If the level is on or below the “MIN”
line, add coolant up to the “MAX”
line.
■ Coolant selection
1KR engine
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%
deionized water. (Minimum temperature: -35 C [-31F])
HM01 engine
Only use “Toyota Genuine Premium Long Life Coolant 2WZ-TV” or a similar
high quality ethylene glycol based non-s ilicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid organic acid technology.
“Toyota Genuine Premium Long Life C oolant 2WZ-TV” is a mixture of 50%
coolant and 50% deionized water. (Minimum temperature: -38 C [-36F])
For more details about 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
Visually check the radiator, hoses, engine coolant reservoir cap, 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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WARNING
■ When the engine is hot
Do not remove the radiator cap (1KR engine) or the engine coolant reser-
voir cap (HM01 engine).
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

3878-2. Steps to take in an emergency
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When trouble arises
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If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● High engine coolant temperature warning light comes on
● “STOP” indicator flashes
● 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 misses, 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 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

3898-2. Steps to take in an emergency
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When trouble arises
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If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light (warning buzzer)*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Continuing to drive the vehicle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
(Flashes or comes on)
High engine coolant temperature warning light (for 1KR
engine)
Indicates that the engine is overheating.
As the coolant temperature rise, it changes from flashing
to comes on.
 P. 436

4378-2. Steps to take in an emergency
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When trouble arises
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The coolant level is satisfactory if it is between the “FULL”, “F” or
“MAX” and “LOW” or “MIN” lines on the reservoir.
Radiator cap
Reservoir
“FULL” or “F”
“LOW”
Reservoir
“MAX”
“MIN”
1KR engine (type A)1KR engine (type B)
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HM01 engine
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