2019 MAZDA MODEL CX-30 engine overheat

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 bonnet 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. Put a vehicle with an automatic
transmission in park (P), a manual
transmission in neutral.
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 bonnet and start the
engine.

If neither coolant nor steam is
escaping:
Open the bonnet 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 expert
repairer (we recommend an
Authorised Mazda Repairer).
6. Make sure the cooling fan is
operating, then turn off the engine
after the temperature has
decreased.
7. When cool, check the coolant level.
If Trouble Arises
Overheating
7-44

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 expert
repairer (we recommend an
Authorised Mazda Repairer).
1. Cooling system cap
2. Cooling fan
3. Coolant reservoir

If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required
(page 6-28).
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 expert repairer (we
recommend an Authorised Mazda
Repairer).
If Trouble Arises
Overheating
7-45

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 sump.
3. Inspect the engine oil level (page
6-27). 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 expert repairer (we
recommend an Authorised Mazda
Repairer).
▼High Engine Coolant Temperature
Warning Indication
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 7-44.
CAUTION
Do not drive the vehicle with the high
engine coolant temperature warning
light illuminated. Otherwise, it could
result in damage to the engine.
▼Power Steering Malfunction
Indication/Indicator Light
The message is displayed if the electric
power steering has a malfunction.
If the message is displayed, stop the
vehicle in a safe place and do not
operate the steering wheel. There is no
problem if the indication turns off
when the engine is restarted after
some time has passed. If the indication
displays even after the engine is
restarted, contact an expert repairer
(we recommend an Authorised Mazda
Repairer) if the message is displayed
continuously.
NOTE
xIf the message is displayed, the
power steering will not operate
normally. In this case, the steering
wheel can still be operated,
however, the operation may feel
heavy compared to normal, or the
steering wheel could vibrate when
turning.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-51

Index
Outside mirrors.................... 3-36
Rearview mirror.................... 3-39
Mirror Defogger........................ 4-67
Multi-information Display.......... 4-23
M Hybrid.................................. 4-86
O
Off-Road Traction Assist............ 4-84
Off-Road Traction Assist
indicator light....................... 4-84
Off-Road Traction
Assist switch......................... 4-84
Outside Mirrors.........................3-36
Outside temperature warning
beep........................................ 7-70
Overhead Console.................... 5-39
Overhead Lights........................ 5-33
Overheating.............................. 7-44
Owner Maintenance
Closing the bonnet............... 6-18
Engine compartment
overview.............................. 6-19
Key battery replacement........6-39
Opening the bonnet............. 6-17
Owner maintenance
precautions.......................... 6-16
P
Parking Brake............................ 4-70
Parking Sensor System............. 4-252
Park assist sensor system
operation........................... 4-255
Sensor detection range........4-254
Petrol Particulate Filter............. 4-236
Power Liftgate........................... 3-22
Power Liftgate Warning Beep...... 7-69
Power Steering.......................... 4-93
Power Windows........................ 3-41
R
Rearview Mirror........................ 3-39
Rear Coat Hooks....................... 5-39
Rear Cross Traffic Alert (RCTA) ...........
.............................................. 4-126
Rear Cross Traffic Alert (RCTA)
Warning Beep........................... 7-71
Rear Door Child Safety Locks..... 3-20
Rear Fog Light........................... 4-59
Rear Side Radar Sensor............ 4-224
Rear View Monitor.................. 4-238
Displayable range on the
screen................................ 4-240
Rear view monitor
operation........................... 4-242
Rear view parking camera
location............................. 4-239
Switching to the rear view monitor
display............................... 4-239
Variance between actual road
conditions and displayed
image................................ 4-249
Viewing the display.............4-241
Rear window
Rear Window Defogger......... 4-66
Rear Window Defogger............. 4-66
Rear Window Washer................ 4-64
Rear Window Wiper.................. 4-64
Recommended Oil.................... 6-24
Registering Your Vehicle in A Foreign
Country...................................... 8-2
Replacement
Fuse..................................... 6-46
Key battery........................... 6-39
Light bulbs........................... 6-44
Tyres.................................... 6-42
Wheel.................................. 6-43
Wiper.................................. 6-32
Roadside Emergency Triangle
Retaining Strap.......................... 7-23
10-8

Index
T
Theft-Deterrent System.............. 3-49
Three-flash Turn Signal...............4-60
Tool Storage.............................. 7-24
Touch Sensor Inoperable Warning
Beep (With the advanced keyless
function)...................................7-68
To w i n g
Hook................................... 7-47
Towing Caravans and Trailers
(Europe/Russia/Turkey/Israel/
South Africa)........................ 3-60
Towing Description................... 7-46
Traction Control System (TCS).... 4-81
TCS OFF Indicator Light......... 4-82
TCS OFF switch.................... 4-82
TCS/DSC indicator light........4-81
Traffic Sign Recognition System
(TSR)...................................... 4-111
Transmitter.................................. 3-5
Tr o u b l e
Battery runs out.................... 7-39
Emergency starting................7-42
Flat tyre................................7-24
Overheating......................... 7-44
Parking in an emergency........7-23
When liftgate cannot be
opened................................ 7-73
Turn and Lane-Change Signals.... 4-60
Tyres......................................... 6-41
Flat tyre................................7-24
Replacing a tyre....................6-42
Replacing a wheel................ 6-43
Snow tyres........................... 3-57
Specifications....................... 9-10
Tyre chains........................... 3-57
Tyre inflation pressure........... 6-41
Tyre rotation......................... 6-42
Tyre Pressure Monitoring
System.................................... 4-232
U
Ultrasonic Sensor.................... 4-225
V
Vanity Mirrors........................... 5-32
Vehicle Information Labels
Chassis number...................... 9-2
Conformity plate.................... 9-3
Engine number....................... 9-3
Model plate........................... 9-2
Tyre pressure label.................. 9-3
Vehicle emission control
information label.................... 9-2
Ve h i c l e
identification
number..................................9-2
Vehicle Problem Warning Beep... 7-69
Vehicle Speed Alarm................. 7-70
W
Warning Sound is Activated
AUTOHOLD warning beep.... 7-70
Blind Spot Monitoring (BSM)
warning beep....................... 7-71
Brake override warning
beep.................................... 7-69
Brake system warning beep....7-69
Collision warning..................7-72
Door-ajar warning beep........ 7-72
Electric Parking Brake (EPB)
warning beep....................... 7-70
Electronic steering lock warning
beep.................................... 7-69
Excessive speed warning........7-72
Front Cross Traffic Alert (FCTA)
Warning Beep...................... 7-71
Ignition Not
Off Reminder
Warning Beep...................... 7-69
Ignition not switched off (STOP)
warning beep....................... 7-67
10-10