Vehicle care and maintenance

Precautions for do-it-yourself maintenance

~4min read

If you perform maintenance yourself, make sure you follow the procedures described in these sections correctly.

Items Parts and tools
Battery condition
  • Warm water
  • Sodium bicarbonate
  • Grease
  • Conventional spanner (for terminal bolts)
Engine coolant level

1KR engine

  • "Toyota Super Long Life Coolant" or a similar high-quality ethylene glycol-based coolant containing no silicates, amines, nitrites or borates, with long-life hybrid organic acid technology. "Toyota Super Long Life Coolant" is premixed with 50% coolant and 50% deionised water.
  • Funnel (only for topping up coolant)

HM01 engine

  • "Toyota Genuine Premium Long Life Coolant 2WZ-TV" or a similar high-quality ethylene glycol-based coolant containing no silicates, amines, nitrites or borates, with long-life hybrid organic acid technology. "Toyota Genuine Premium Long Life Coolant 2WZ-TV" is premixed with 50% coolant and 50% deionised water.
  • Funnel (only for topping up coolant)
Engine oil level

1KR engine

  • "Toyota Genuine Motor Oil" or an equivalent product
  • Rag or paper towel
  • Funnel (only for topping up engine oil)

HM01 engine

  • "TOTAL ACTIVA", "TOTAL QUARTZ" engine oil or equivalent
  • Rag or paper towel
  • Funnel (only for topping up engine oil)
Fuses
  • Fuse with the same rated amperage as the original
Bulbs
  • Bulb with the same number and rated wattage as the original
  • Phillips screwdriver
  • Flat-blade screwdriver
  • Spanner
Radiator and condenser -
Tyre inflation pressure
  • Tyre pressure gauge
  • Compressed air source
Washer Fluid
  • Washer fluid containing antifreeze (for winter use)
  • Filler cap (use only to add water or windshield washer fluid)

WARNING

The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or be electrically energized. To avoid serious or fatal injury, observe the following precautions.

■ When working in the engine compartment

  • Keep hands, clothing and tools away from the operating cooling fan and the engine drive belt.
  • Take care not to touch the engine, radiator, exhaust manifold, etc., immediately after driving, as they may be hot. Oil and other fluids may also be very hot.
  • Do not leave easily flammable items, such as paper and rags, in the engine compartment.
  • Do not smoke, create sparks or expose fuel or the battery to an open flame. Fuel and battery fumes are flammable.
  • Use extreme caution when working on the battery. It contains toxic and corrosive sulfuric acid.
  • Be careful, as brake fluid can cause injury to hands or eyes and damage painted surfaces. If fluid contacts your hands or eyes, rinse the affected area immediately with clean water.
If the condition does not improve, see a doctor.

■ When working near the electric cooling fans or the radiator grille

- Vehicles without smart entry and start system: Make sure the key in the ignition switch is in the OFF position. With the key in the ignition switch in the "ON" position, the electric cooling fan may start to run automatically when the air conditioning is on and/or the coolant temperature is high.

- Vehicles with smart entry and start system: Make sure the key is not in the ignition switch and the engine switch is in the OFF mode. With the engine switch in IGNITION ON mode, the electric cooling fan may start to run automatically if the air conditioning is on and/or the coolant temperature is high.

■ Protective glasses Wear protective glasses to prevent flying or falling debris, vaporized liquid, etc., from entering your eyes.

NOTE

■ If the air filter is removed Driving with the air filter removed may cause excessive engine wear due to dirty air.

■ If the fluid level is low or high It is normal for the brake fluid level to drop slightly as the brake pads wear or when the fluid level in the reservoir is high.

If the reservoir requires frequent topping up, there may be a serious problem.

Test yourself

A quick Toyota Aygo quiz: every answer comes with an explanation and a link to the manual page.