Get Maintenance and care -> Do-it-yourself maintenance-Engine compartment Guide for Toyota Corolla 4 Door 2023

304

6-3. Do-it-yourself maintenance

Engine compartment

Components

Washer fluid tank (P.310)

Engine coolant reservoir (P.306)

Fuse boxes (P.336)

Engine oil filler cap (P .305)

Engine oil level dipstick (P .304)

Battery (P.308)

Brake fluid reservoir (P.307)

Radiator (P.307)

Condenser (P.307)

Electric cooling fan

stick.

Checking and adding the

engine oil

■ Checking the engine oil

1 Park the vehicle on level

ground. After warming up the

engine and turning it off, wait

With the engine at operating

temperature and turned off,

check the oil level on the dip-

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6-3. Do-it-yourself maintenance

more than 5 minutes for the

oil to drain back into the bot-

tom of the engine.

■ Checking the oil type and

preparing the item needed

Make sure to check the oil type

and prepare the items needed

before adding oil.

2 Holding a rag under the end,

pull the dipstick out.

 Engine oil selection

394

 Oil quantity (Low  Full)

1.6 qt. (1.5 L, 1.3 Imp. qt.)

 Item

Clean funnel

■ 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.

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.

6

1 Remove the oil filler cap by

turning it counterclockwise.

Low

2 Add engine oil slowly, check-

ing the dipstick.

Normal

Excessive

3 Install the oil filler cap by

turning it clockwise.

The shape of the dipstick may differ

depending on the type of vehicle or

engine.

■Engine oil consumption

6 Wipe the dipstick and reinsert

A certain amount of engine oil will

be consumed while driving. In the

following situations, oil consump-

tion may increase, and engine oil

may need to be refilled in between

oil maintenance intervals.

it fully.

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6-3. Do-it-yourself maintenance

●When the engine is new, for

example directly after purchasing

the vehicle or after replacing the

engine

●Avoid overfilling, or the engine

could be damaged.

●Check the oil level on the dip-

stick every time you refill the

vehicle.

●If low quality oil or oil of an inap-

propriate viscosity is used

●When driving at high engine

speeds or with a heavy load, or

when driving while accelerating or

decelerating frequently

●Be sure the engine oil filler cap

is properly tightened.

Checking the engine cool-

ant

●When leaving the engine idling for

a long time, or when driving fre-

quently through heavy traffic

The coolant level is satisfactory

if it is between the “MAX” and

“MIN” lines on the reservoir

when the engine is cold.

WARNING

■Used engine oil

●Used engine oil contains poten-

tially 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 recy-

cling or disposal.

Reservoir

“MAX” line

“MIN” line

If the level is on or below the “MIN”

line, add coolant up to the “MAX”

line. (P.387)

●Do not leave used engine oil

within the reach of children.

■Coolant selection

NOTICE

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.

■To prevent serious engine

damage

Check the oil level on a regular

basis.

For the U.S.A.:

■When replacing the engine oil

“Toyota Super Long Life Coolant” is

a mixture of 50% coolant and 50%

deionized water. (Minimum tem-

●Be careful not to spill engine oil

on the vehicle components.

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6-3. Do-it-yourself maintenance

perature: -31°F [-35°C])

For Canada:

denser and clear away any for-

eign objects. If either of the

above parts is extremely dirty or

you are not sure of their condi-

tion, have your vehicle

“Toyota Super Long Life Coolant” is

a mixture of 55% coolant and 45%

deionized water. (Minimum tem-

perature: -44°F [-42°C])

inspected by your Toyota dealer.

For more details about coolant, con-

tact your Toyota dealer.

WARNING

■If the coolant level drops within

a short time of replenishing

■When the engine is hot

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 sys-

tem.

Do not touch the radiator or con-

denser as they may be hot and

cause serious injuries, such as

burns.

Checking and adding the

brake fluid

WARNING

■ Checking fluid level

■When the engine is hot

The brake fluid level should be

between the “MAX” and “MIN”

lines on the tank.

Do not remove the engine coolant

reservoir cap.

The cooling system may be under

pressure and may spray hot cool-

ant if the cap is removed, causing

serious injuries, such as burns.

6

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.

Checking the radiator and

condenser

Check the radiator and con-

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6-3. Do-it-yourself maintenance

FMVSS No.116 DOT 3 or SAE

J1703 brake fluid

■ Adding fluid

1 Slide and lift up the rubber

strip to partly remove it as

shown.

FMVSS No.116 DOT 4 or SAE

J1704 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 brak-

ing efficiency. Use only newly

opened brake fluid.

2 Disconnect the claws and

WARNING

remove the service cover.

■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

3 Remove the reservoir cap.

■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

4 Add brake fluid slowly while

Check the battery as follows.

checking the fluid level.

■ Battery exterior

Make sure to check the fluid

type and prepare the necessary

item.

Make sure that the battery termi-

nals are not corroded and that

there are no loose connections,

cracks, or loose clamps.

 Fluid type

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6-3. Do-it-yourself maintenance

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 Toy-

ota dealer.

WARNING

■Chemicals in the battery

Terminals

The battery contains 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 precau-

tions while working on or near the

battery:

Hold-down clamp

■Before recharging

When recharging, the battery pro-

duces hydrogen gas which is flam-

mable and explosive. Therefore,

observe the following precautions

before recharging:

●Do not cause sparks by touch-

ing the battery terminals with

tools.

●If recharging with the battery

installed on the vehicle, be sure to

disconnect the ground cable.

●Do not smoke or light a match

near the battery.

●Make sure the charger is off when

connecting and disconnecting the

charger cables to the battery.

●Avoid contact with eyes, skin

and clothes.

6

■After recharging/reconnecting

the battery (vehicles with a

smart key system)

●Never inhale or swallow electro-

lyte.

●Wear protective safety glasses

●Unlocking the doors using the

smart key system may not be pos-

sible immediately after reconnect-

ing the battery. If this happens,

use the wireless remote control or

the mechanical key to lock/unlock

the doors.

when working near the battery.

●Keep children away from the

battery.

■Where to safely charge the

battery

●Start the engine with the engine

switch in ACC. The engine may

not start with the engine switch

turned off. However, the engine

will operate normally from the sec-

ond attempt.

Always charge the battery in an

open area. Do not charge the bat-

tery in a garage or closed room

where there is insufficient ventila-

tion.

●The engine switch mode is

recorded by the vehicle. If the bat-

tery 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

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6-3. Do-it-yourself maintenance

Adding the washer fluid

WARNING

■Emergency measures regard-

Add washer fluid in the following

situations:

ing 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 near-

est medical facility.

 A washer does not work.

 The warning message

appears on the multi-informa-

tion display.

●If electrolyte gets on your skin

Wash the affected area thor-

oughly. If you feel pain or burn-

ing, 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.

WARNING

■When adding washer fluid

●If you accidentally swallow elec-

trolyte

Drink a large quantity of water

or milk. Get emergency medical

attention immediately.

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.

■When disconnecting the bat-

tery

NOTICE

Do not disconnect the negative (-)

terminal on the body side. The

disconnected negative (-) terminal

may touch the positive (+) termi-

nal, which may cause a short and

result in death or serious injury.

■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 lead-

ing to problems of the washer

fluid not spraying.

NOTICE

■When recharging the battery

Never recharge the battery while

the engine is running. Also, be

sure all accessories are turned

off.

■Diluting washer fluid

Dilute washer fluid with water as

necessary.

Refer to the freezing tempera-

tures listed on the label of the

washer fluid bottle.

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Maintenance and care -> Do-it-yourself maintenance-Engine compartment for Your Toyota Corolla 4 Door 2023

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