2023 MAZDA CX30 overheating

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.
WARNING
Pull over to a safe location, then
switch the ignition off 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 indefinitely 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.
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.
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 off the right-of-way.
2. Shift into park (P).
3. Apply the parking brake.
4. Turn off the air conditioner.
5. Check whether coolant or steam is escaping from the engine
compartment.

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.
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.
6. Make sure the cooling fan is operating, then turn off the engine
after the temperature has
decreased.
If Trouble Arises
Overheating
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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:
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
2. Cooling fan
3. Cooling system cap

If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required
(page 6-18).
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.
If Trouble Arises
Overheating
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▼Charging System Warning
Indication/Warning Light
If the warning light illuminates while
driving , it indicates a malfunction of
the alternator or of the charging
system.
Drive to the side of the road and park
off the right-of-way. Consult an
Authorized Mazda Dealer.
CAUTION
Do not continue driving when the
charging system warning light is
illuminated because the engine could
stop unexpectedly.
▼Engine Oil Warning Indication/
Warning Light
This warning light indicates low engine
oil pressure.
CAUTION
Do not run the engine if the oil
pressure is low. Otherwise, it could
result in extensive engine damage.
If the light illuminates or the warning
indication is displayed while driving:
1. Drive to the side of the road and
park off the right-of-way on level
ground.
2. Turn off the engine and wait 5
minutes for the oil to drain back
into the oil pan.
3. Inspect the engine oil level (page 6-17). If it's low, add the
appropriate amount of engine oil
while being careful not to overfill.
CAUTION
Do not run the engine if the oil
level is low. Otherwise, it could
result in extensive engine damage.
4. Start the engine and check the warning light.

If the light remains illuminated even
though the oil level is normal or after
adding oil, stop the engine
immediately and have your vehicle
towed to an Authorized Mazda Dealer.
▼ High Engine Coolant Temperature
Warning Indicat ion
Displays if the engine coolant
temperature has increased excessively.
“Elevated Engine Coolant Temp. Drive
Slowly” displayed
Drive slowly to reduce engine load
until you can find a safe place to stop
the vehicle and wait for the engine to
cool down.
“Excessive Engine Coolant Temp. Stop
the Vehicle in a Safe Location”
displayed
This indicates the possibility of
overheating. Park the vehicle in a safe
place immediately and stop the
engine.
Refer to Overheating on page 7-17.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Index
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) System
Warnings.................................. 7-43
Message Indicated on Multi-
information Display................... 7-35
Meters...................................... 4-18
MirrorsOutside mirrors.................... 3-35
Rearview mirror.................... 3-37
Mirror Defogger........................ 4-64
Moonroof................................. 3-42
Multi-information Display.......... 4-20
M Hybrid.................................. 4-49
O
Off-Road Traction Assist............ 4-87 Off-Road Traction Assist
indicator light....................... 4-87
Off-Road Traction
Assist switch......................... 4-88
Outside Mirrors.........................3-35
Overhead Console.................... 5-46
Overhead Lights........................ 5-40
Overheating.............................. 7-17
Overloading.............................. 3-56
Owner Maintenance Closing the hood..................6-13
Engine compartment
overview.............................. 6-14
Key battery replacement........6-29
Opening the hood................ 6-12
Owner maintenance
precautions.......................... 6-11
P
Parking Brake............................ 4-72
Parking Sensor System............. 4-231
Power Liftgate........................... 3-23
Power Liftgate Warning Beep...... 7-41
Power Steering.......................... 4-93
Power Windows........................ 3-39
R
Rearview Mirror........................ 3-37
Rear Coat Hooks....................... 5-45
Rear Cross Tra ffi c Alert (RCTA) ...........
.............................................. 4-123
Rear Cross Traffic Alert (RCTA)
Warning Beep........................... 7-42
Rear Door Child Safety Locks..... 3-20
Rear Side Radar Sensor............ 4-204
Rear View Monitor.................. 4-216 Displayable range on the
screen................................ 4-218
Rear view monitor
operation........................... 4-221
Rear view parking camera
location............................. 4-217
Switching to the rear view monitor
display............................... 4-218
Variance between actual road
conditions and displayed
image................................ 4-228
Viewing the display.............4-220
Rear Window Defogger............. 4-63
Rear Window Washer................ 4-63
Rear Window Wiper.................. 4-62
Recommended Oil.................... 6-16
Recording of Vehicle Data..........8-20
Recreational Towing.................. 3-58
Registering Your Vehicle in A Foreign
Country.................................... 8-16
Replacement Fuse..................................... 6-35
Key battery........................... 6-29
Light bulbs........................... 6-34
Tires.....................................6-32
Wheel.................................. 6-33
Wiper.................................. 6-22
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Index
Replacing a wheel................ 6-33
Snow tires............................ 3-54
Specifications......................... 9-8
Temporary spare tire............. 6-33
Tire chains............................3-54
Tire inflation pressure............6-31
Tire rotation......................... 6-32
Uniform tire quality grading
system (UTQGS)................... 8-21
Tire Information Location of the tire label
(placard).............................. 8-27
Steps for determining the correct
load limit............................. 8-34
Tire labeling......................... 8-23
Tire maintenance.................. 8-29
Vehicle loading.....................8-30
Tire Pressure Monitoring
System.................................... 4-212
Touch Sensor Inoperable Warning
Beep (With the advanced keyless
function)...................................7-40
To w i n g Recreational towing.............. 3-58
Trailer towing....................... 3-58
Towing Description................... 7-19
Traction Control System (TCS).... 4-84 TCS OFF Indicator Light......... 4-85
TCS OFF switch.................... 4-85
TCS/DSC indicator light........4-84
Tra ffi c Jam Assist (TJA).............. 4-137
Close proximity warning...... 4-142
Display indication............... 4-140
Setting the system...............4-143
Stop hold control............... 4-150
Traffic Sign Recognition System
(TSR)...................................... 4-109
Trouble Battery runs out.................... 7-13
Emergency starting................7-16
Flat tire.................................. 7-5Overheating......................... 7-17
Parking in an emergency......... 7-2
When liftgate cannot be
opened................................ 7-44
Turn and Lane-Change Signals.... 4-58
Turn Signals.............................. 4-58
U
Ultrasonic Sensor.................... 4-206
V
Vehicle Information Labels Chassis number...................... 9-2
Engine number....................... 9-3
Motor vehicle safety standard
label...................................... 9-2
Tire pressure label.................. 9-2
Vehicle emission control
information label.................... 9-2
Ve h i c l e identification
number..................................9-2
Vehicle Problem Warning Beep...7-42
W
Warning Sound is Activated........7-43 AUTOHOLD warning beep.... 7-42
Battery Saving Mode Warning
Sound.................................. 7-43
Blind Spot Monitoring (BSM)
warning beep....................... 7-42
Brake override warning
beep.................................... 7-41
Brake system warning beep....7-41
Collision warning..................7-43
Door-ajar warning beep........ 7-43
Electric Parking Brake (EPB)
warning beep....................... 7-42
Excessive speed warning........7-43
Front Cross Traffic Alert (FCTA)
Warning Beep...................... 7-42
10-9
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