coolant temperature MAZDA MODEL 3 SEDAN 2019 User Guide

Overheating
▼Overheating
If the engine coolant temperature gauge
indicates overheati
ng 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.
WA R N I N G
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. 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 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.
If Trouble Arises
Overheating
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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 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.
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
6-17).
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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2. Turn off the engine and wait 5 minutesfor the oil to drain back into the oil
pan.
3. Inspect the engi ne oil level (page
6-16). 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 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 7-20.
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 d
isplayed, stop the
vehicle in a safe place and do not operate
the steering wheel. There is no problem if
the message in the display turns off after a
while. Contact an Authorized Mazda
Dealer if the message is displayed
continuously.
NOTE
If 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
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Index
FluidsBrake/Clutch................................ 6-18
Classification................................. 9-4
Washer......................................... 6-19
Foot Brake.........................................4-62
Forward Sensing Camera (FSC)..... 4-198
Front Camera/Side Cameras/Rear
Camera............................................ 4-208
Front Cross Traffic A lert (FCTA)... 4-109
Front Radar Sensor...... ................... 4-202
Front Side Radar Sensor................. 4-204
Fuel Filler lid and cap......................... 3-26
Requirements............................... 3-24
Tank capacity.................................9-5
Fuses.................................................. 6-37
Panel description......................... 6-39
Replacement................................ 6-37
G
Gauges............................................... 4-12
Glove Compartment.......................... 5-41
H
Hazardous Driving............................ 3-44
Hazard Warning Flasher....................4-57
HeadlightsComing home light......................4-47
Flashing....................................... 4-46
High-low beam............................ 4-46
Leaving home light..................... 4-47
Leveling....................................... 4-48
Head Restraint................................... 2-17
High Beam Control System
(HBC)................................................ 4-88 High Beam Control System (HBC)
indicator light (green)..................4-89
Hill Launch Assist (HL A)................ 4-72
HomeLink Wireless Control
System............................................... 4-57
Hood Release............. ....................... 6-12
Horn...................................................4-56
I
If a Warning Light Turns On or
Flashes............................................... 7-26
If the Active Driving Display Does Not
Operate.............................................. 7-48
Ignition Not Switched Off (STOP)
Warning Beep.................................... 7-42
Ignition Switch.................................... 4-4
Illuminated Entry System................. 5-35
Immobilizer System..... ..................... 3-39
Inside Trunk Release Lever.............. 3-23
Inspecting Brake/Clutch Fluid
Level.................................................. 6-18
Inspecting Coolant Level.................. 6-17
Inspecting Engine Oil Level............. 6-16
Inspecting Washer Fluid Level......... 6-19
Instrument Cluster............................. 4-12 Average fuel econom y.................4-20
Compass display.......................... 4-21
Current fuel economy. .................4-20
Dashboard illuminati on............... 4-18
Distance-to-empty... .................... 4-19
Engine coolant temperature
gauge............................................4-17
Fuel gauge................................... 4-17
Indication/indicator lights............4-24
i-ACTIVSENSE display..............4-20
Message indicated on multi-
information display......................7-38
Multi-information display........... 4-14
Odometer..................................... 4-16
Outside temperatur e display........ 4-19
Speedometer................................ 4-12
Tachometer.................................. 4-13
Trip meter.................................... 4-16
Warning indication/warning
lights............................................ 4-22
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