2019-2026 Mazda 3 4 Door If Trouble Arises -> Overheating User Manual
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If Trouble Arises -> Overheating for Your Mazda 3 4 Door Fourth Generation (2019-2026)

If Trouble Arises  
Overheating  
Open the hood ONLY after steam is  
no longer escaping from the engine:  
Steam from an overheated engine is  
dangerous. The escaping steam could  
seriously burn you.  
Overheating  
Overheating  
If the engine coolant temperature  
gauge indicates overheating and the  
high engine coolant temperature  
warning indication is displayed, the  
vehicle loses power or you hear a loud  
knocking or pinging noise, the engine  
is probably too hot.  
If the engine coolant temperature  
gauge indicates overheating and the  
high engine coolant temperature  
warning indication is displayed:  
1. Drive safely to the side of the road  
and park oꢀ the right-of-way.  
2. Put a vehicle with an automatic  
transmission in park (P), a manual  
transmission in neutral.  
WARNING  
3. Apply the parking brake.  
4. Turn oꢀ the air conditioner.  
5. Check whether coolant or steam is  
escaping from the engine  
Pull over to a safe location, then  
switch the ignition oꢀ and make sure  
the fan is not running before  
attempting to work near the cooling  
fan:  
compartment.  
Working near the cooling fan when it is  
running is dangerous. The fan could  
continue running indefinitely even if  
the engine has stopped and the engine  
compartment temperature is high. You  
could be hit by the fan and seriously  
injured.  
If steam is coming from the engine  
compartment:  
Do not go near the front of the  
vehicle. Stop the engine.  
Wait until the steam dissipates,  
then open the hood and start the  
engine.  
If neither coolant nor steam is  
escaping:  
Open the hood and idle the engine  
until it cools.  
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.  
CAUTION  
If the cooling fan does not operate  
while the engine is running, the  
engine temperature will increase.  
Stop the engine and call an  
Authorized Mazda Dealer.  
7-21  
If Trouble Arises  
Overheating  
6. Make sure the cooling fan is  
operating, then turn oꢀ the engine  
after the temperature has  
2. Cooling fan  
3. Cooling system cap  
decreased.  
If you find no problems, the engine is  
cool, and no leaks are obvious:  
Carefully add coolant as required  
(page 6-19).  
7. When cool, check the coolant level.  
If it is low, look for coolant leaks  
from the radiator and hoses.  
If you find a leak or other damage, or  
if coolant is still leaking:  
CAUTION  
If the engine continues to overheat or  
frequently overheats, have the cooling  
system inspected. The engine could be  
seriously damaged unless repairs are  
made. Consult an Authorized Mazda  
Dealer.  
Stop the engine and call an Authorized  
Mazda Dealer.  
SKYACTIV-G 2.0 and SKYACTIV-G  
2.5  
1. Cooling system cap  
2. Cooling fan  
3. Coolant reservoir  
SKYACTIV-G 2.5T  
1. Coolant reservoir  
7-22  

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