Maintenance and care -> Service precautions for Your Toyota Aygo SUV Second Generation (2015-2021)

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7-3. Do-it-yourself maintenance  
Do-it-yourself service precautions  
If you perform maintenance by yourself, be sure to follow the  
correct procedure as given in these sections.  
Items  
Parts and tools  
ꢀ Baking soda  
ꢀ Warm water  
ꢀ Grease  
Battery condition  
(P. 365)  
ꢀ Conventional wrench (for terminal clamp bolts)  
ꢀ “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.  
Engine coolant  
level (P. 363)  
ꢀ Funnel (used only for adding coolant)  
ꢀ “Toyota Genuine Motor Oil” or equivalent  
ꢀ Rag or paper towel  
ꢀ Funnel (used only for adding engine oil)  
Engine oil level  
(P. 360)  
Fuses (P. 384)  
ꢀ Fuse with same amperage rating as original  
ꢀ Bulb with same number and wattage rating as origi-  
nal  
Light bulbs  
ꢀ Phillips-head screwdriver  
(P. 392)  
ꢀ Flathead screwdriver  
ꢀ Wrench  
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Radiator and  
condenser  
(P. 364)  
Tire inflation  
pressure  
(P. 376)  
ꢀ Tire pressure gauge  
ꢀ Compressed air source  
ꢀ Water or washer fluid containing antifreeze (for win-  
ter use)  
ꢀ Funnel (used only for adding water or washer fluid)  
Washer fluid  
(P. 368)  
 
354  
7-3. Do-it-yourself maintenance  
WARNING  
The engine compartment contains many mechanisms and fluids that may  
move suddenly, become hot, or become electrically energized. To avoid death  
or serious injury, observe the following precautions.  
When working on the engine compartment  
Keep hands, clothing and tools away from the moving fan and engine  
drive belt.  
Be careful not to touch the engine, radiator, exhaust manifold, etc., right  
after driving as they may be hot. Oil and other fluids may also be hot.  
Do not leave anything that may burn easily, such as paper and rags, in the  
engine compartment.  
Do not smoke, cause sparks or expose an open flame to fuel or the bat-  
tery. Fuel and battery fumes are flammable.  
Be extremely cautious when working on the battery. It contains poisonous  
and corrosive sulfuric acid.  
Take care because brake fluid can harm your hands or eyes and damage  
painted surfaces. If fluid gets on your hands or in your eyes, flush the  
affected area with clean water immediately.  
If you still experience discomfort, consult a doctor.  
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 automatically start to run if the air conditioning  
is on and/or the coolant temperature is high. (P. 364)  
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. 364)  
Safety glasses  
Wear safety glasses to prevent flying or falling material, fluid spray, etc.,  
from getting in your eyes.  
 
355  
7-3. Do-it-yourself maintenance  
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.  
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