Toyota Avalon Owners Manual: Engine compartment

Do-it-yourself maintenance

  1. Fuse boxes (if equipped)
  2. Engine oil filler cap
  3. Engine oil level dipstick
  4. Brake fluid reservoir
  5. Battery
  6. Radiator
  7. Electric cooling fan
  8. Condenser
  9. Engine coolant reservoir
  10. Washer fluid tank

Engine oil

With the engine at operating temperature and turned off, check the oil level on the dipstick.

■ Checking the engine oil

1. Park the vehicle on level ground. After warming up the engine and turning it off, wait more than 5 minutes for the oil to drain back into the bottom of the engine.

2. Holding a rag under the end, pull the dipstick out.

Do-it-yourself maintenance

3. Wipe the dipstick clean.

4. Reinsert the dipstick fully.

5. Holding a rag under the end, pull the dipstick out and check the oil level.

  1. Low
  2. Normal
  3. Excessive

The shape of the dipstick may differ depending on the type of vehicle or engine.

6. Wipe the dipstick and reinsert it fully.

■ Adding engine oil If the oil level is below or near the low level mark, add engine oil of the same type as that already in the engine.

Do-it-yourself maintenance

Make sure to check the oil type and prepare the items needed before adding oil.

Oil quantity (Low Full) 1.9 qt. (1.8 L, 1.6 lmp. qt.)
Items Clean funnel
  1. Remove the oil filler cap by turning it counterclockwise.
  2. Add engine oil slowly, checking the dipstick.
  3. Install the oil filler cap by turning it clockwise.

■Engine oil consumption A certain amount of engine oil will be consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.

  • When the engine is new, for example directly after purchasing the vehicle or after replacing the engine
  • If low quality oil or oil of an inappropriate viscosity is used
  • When driving at high engine speeds or with a heavy load, or when driving while accelerating or decelerating frequently
  • When leaving the engine idling for a long time, or when driving frequently through heavy traffic
WARNING

■Used engine oil

  • Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so care should be taken to avoid prolonged and repeated contact. To remove used engine oil from your skin, wash thoroughly with soap and water.
  • Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of used oil and filters in household trash, in sewers or onto the ground.

    Call your Toyota dealer, service station or auto parts store for information concerning recycling or disposal.

  • Do not leave used engine oil within the reach of children.

 

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

The coolant level is satisfactory if it is between the "F" and "L" lines on the reservoir when the engine is cold.

  1. Reservoir cap
  2. "F" line
  3. "L" line

If the level is on or below the "L" line, add coolant up to the "F" line.

Do-it-yourself maintenance

■Coolant selection 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.

U.S.A.: "Toyota Super Long Life Coolant" is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31ºF [-35ºC])

Canada: "Toyota Super Long Life Coolant" is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44ºF [-42ºC]) For more details about engine coolant, contact your Toyota dealer.

■If the coolant level drops within a short time of replenishing Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and water pump.

If you cannot find a leak, have your Toyota dealer test the cap and check for leaks in the cooling system.

WARNING

■When the engine is hot Do not remove the engine coolant reservoir cap or the radiator cap.

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 it from damaging parts or paint.

Radiator and condenser

Check the radiator and condenser and clear away any foreign objects.

If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Toyota dealer.

WARNING

■When the engine is hot Do not touch the radiator or condenser as they may be hot and cause serious injuries, such as burns.

Brake fluid

■ Checking fluid level The brake fluid level should be between the "MAX" and "MIN" lines on the tank.

  1. "MAX"
  2. "MIN"

Do-it-yourself maintenance

■ Adding fluid Make sure to check the fluid type and prepare the necessary item.

Fluid type SAE J1703 or FMVSS No.116 DOT 3 brake fluid
SAE J1704 or FMVSS No.116 DOT 4 brake fluid
Item Clean funnel

■Brake fluid can absorb moisture from the air Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency.

Use only newly opened brake fluid.

WARNING

■When filling the reservoir Take care as brake fluid can harm your hands and 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, see a doctor.

 

NOTICE

■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 out or when the fluid level in the accumulator is high.

If the reservoir needs frequent refilling, there may be a serious problem.

Battery

Check the battery as follows.

■ Battery exterior Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps.

  1. Terminals
  2. Hold-down clamp

Do-it-yourself maintenance

■Before recharging When recharging, the battery produces hydrogen gas which is flammable and explosive. Therefore, observe the following before recharging:

  • If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.
  • Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the battery.

■After recharging/reconnecting the battery

  • Unlocking the doors using the smart key system may not be possible immediately after reconnecting the battery. If this happens, use the wireless remote control or the mechanical key to lock/unlock the doors.
  • Start the engine with the engine switch in ACCESSORY mode. The engine may not start with the engine switch turned off. However, the engine will operate normally from the second attempt.
  • The engine switch mode is recorded by the vehicle. If the battery is reconnected, the vehicle will return the engine switch mode to the status it was in before the battery was disconnected. Make sure to turn off the engine before disconnecting the battery. Take extra care when connecting the battery if the engine switch mode prior to discharge is unknown.

If the system will not start even after multiple attempts, contact your Toyota dealer.

WARNING

■Chemicals in the battery Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take the following precautions while working on or near the battery:

  • Do not cause sparks by touching the battery terminals with tools.
  • Do not smoke or light a match near the battery.
  • Avoid contact with eyes, skin and clothes.
  • Never inhale or swallow electrolyte.
  • Wear protective safety glasses when working near the battery.
  • Keep children away from the battery.

Where to safely charge the battery Always charge the battery in an open area. Do not charge the battery in a garage or closed room where there is insufficient ventilation.

■Emergency measures regarding electrolyte

  • If electrolyte gets in your eyes
    Flush your eyes with clean water for at least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the nearest medical facility.
  • If electrolyte gets on your skin
    Wash the affected area thoroughly. If you feel pain or burning, get medical attention immediately.
  • If electrolyte gets on your clothes
    It can soak through clothing on to your skin. Immediately take off the clothing and follow the procedure above if necessary.
  • If you accidentally swallow electrolyte
    Drink a large quantity of water or milk. Get emergency medical attention immediately.

■When disconnecting the battery Do not disconnect the negative (-) terminal on the body side. The disconnected negative (-) terminal may touch the positive (+) terminal, which may cause a short and result in death or serious injury.

 

NOTICE

■When recharging the battery Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.

Washer fluid

Add washer fluid in the following situations:

  • A washer does not work.
  • "Windshield Washer Fluid Low" is displayed on the multi-information display.

Do-it-yourself maintenance

WARNING

■When adding washer fluid Do not add washer fluid when the engine is hot or running as washer fluid contains alcohol and may catch fire if spilled on the engine, etc.

 

NOTICE

■Do not use any fluid other than washer fluid Do not use soapy water or engine antifreeze instead of washer fluid.

Doing so may cause streaking on the vehicle's painted surfaces, as well as damaging the pump leading to problems of the washer fluid not spraying.

Diluting washer fluid Dilute washer fluid with water as necessary.

Refer to the freezing temperatures listed on the label of the washer fluid bottle.

    Do-it-yourself service precautions

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