radiator cap TOYOTA AYGO 2015 Owners Manual (in English)

2967-3. Do-it-yourself maintenance
AYGO_EE_OM99J92E
Engine compar tment
X1KR engine
Engine oil filler cap
( →P. 299)
Fuse box ( →P. 322)
Battery ( →P. 303)
Engine coolant reservoir
( →P. 301)
Radiator ( →P. 303)
Electric cooling fan
Condenser ( →P. 303)
Engine oil level dipstick
( →P. 298)
Washer fluid tank ( →P. 307)
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2977-3. Do-it-yourself maintenance
7
Maintenance and care
AYGO_EE_OM99J92E
XHM01 engine
Engine coolant reservoir
( →P. 301)
Engine oil filler cap
( →P. 299)
Fuse box ( →P. 322)
Battery ( →P. 303)
Radiator ( →P. 303)
Electric cooling fan
Condenser ( →P. 303)
Engine oil level dipstick
( →P. 298)
Washer fluid tank ( →P. 307)
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3027-3. Do-it-yourself maintenance
AYGO_EE_OM99J92E
XHM01 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
X1KR 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])
XHM01 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 Coolant 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) and 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.

3998-2. Steps to take in an emergency
8
When trouble arises
AYGO_EE_OM99J92E
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”
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X1KR engine (type A)X1KR engine (type B)
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XHM01 engine
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4018-2. Steps to take in an emergency
8
When trouble arises
AYGO_EE_OM99J92E
WARNING
■ 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 fans and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the radiator cap (1KR engine only) and the coolant reservoir
cap while the engine and radiator are hot. High temperature steam or cool-
ant could spray out.
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.

434Alphabetical index
AYGO_EE_OM99J92E
Odometer .................................... 85
Oil
Engine oil .............................. 408
Manual transmission oil ........ 415
Opener
Back door .............................. 107
Fuel filler door ....................... 179
Hood ..................................... 293
Outside rear view mirrors ....... 131
Adjusting and folding............. 131
Outside rear view mirror
defoggers.................... 258, 264
Outside temperature
display .................................... 279
Overheating, Engine ................ 398
Paddle shift switches .............. 160
Parking brake ........................... 166
Operation .............................. 166
Parking brake engaged
warning buzzer ................... 352
Power outlet ............................. 280
Power steering (Electric
Power Steering system)........ 191
Warning light ......................... 354
Power windows ........................ 133
Radiator .................................... 303
Radio......................................... 206
Radio data system ................... 208
RDS ........................................... 208
Rear fog lights ......................... 171
Replacing light bulbs............. 336
Switch ................................... 171
Wattage ................................ 418
Rear seat .................................. 125
Folding down the rear
seatbacks ........................... 125
Head restraints ..................... 127
Rear turn signal lights............. 165
Replacing light bulbs............. 336
Turn signal lever ................... 165
Wattage ................................ 418
Rear view mirror
Inside rear view mirror .......... 130
Outside rear view mirrors...... 131
Rear view monitor system*
Rear window defogger .... 258, 264
Rear window wiper .................. 175
Refueling .................................. 177
Capacity ................................ 408
Fuel types ..................... 177, 408
Opening the fuel tank cap ..... 179
Replacing
Electronic key battery ........... 319
Fuses .................................... 322
Light bulbs ............................ 330
Tires .............................. 361, 374
Wireless remote control
battery ................................ 319
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