Engine Coolant; Inspecting Coolant Level; Do not use a match or live - Page 458

2021 Mazda Mazda3 Hatchback Owners Manual

Table of Contents

When Driving
Customer Information and Reporting Safety Defects
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Engine Coolant

Inspecting Coolant Level

WARNING

Do not use a match or live 

fl

ame in

the engine compartment. DO NOT

ADD COOLANT WHEN THE ENGINE

IS HOT

:

A hot engine is dangerous. If the

engine has been running, parts of the

engine compartment can become very

hot. You could be burned. Carefully

inspect the engine coolant in the

coolant reservoir, but do not open it.

Pull over to a safe location, then

switch the ignition o

 and make sure

the fan is not running before

attempting to work near the cooling

fan:

Working near the cooling fan when it is

running is dangerous. The fan could

continue running inde

fi

nitely even if

the engine has stopped and the engine

compartment temperature is high. You

could be hit by the fan and seriously

injured.

 Do not remove either

cooling system cap when the engine

and radiator are hot:

When the engine and radiator are hot,

scalding coolant and steam may shoot

out under pressure and cause serious

injury.

NOTE

Changing the coolant should be done

by an Authorized Mazda Dealer.
Inspect the antifreeze protection and

coolant level in the coolant reservoir at

least once a year

at the beginning of

the winter season

and before

traveling where temperatures may drop

below freezing.

 

Inspect the condition and connections

of all cooling system and heater hoses.

Replace any that are swollen or

deteriorated.

 

The coolant should be at full in the

radiator and between the FULL and

LOW marks on the coolant reservoir

when the engine is cool.

SKYACTIV

-

G 2.0 and SKYACTIV

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G

2.5

 

Maintenance and Care

Owner Maintenance

6-20

Mazda3_8JM2-EA

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20H_Edition1_new

2020-7-10 17:21:34