2018 MAZDA MODEL 3 HATCHBACK coolant temperature

Winter Driving
Carry emergency gear, including tire
chains, window scraper, flares, a small
shovel, jumper cables, and a small bag of
sand or salt.
Ask an Authorized Mazda Dealer to check
the following:
Have the proper ratio of antifreeze in the
radiator.
Refer to Engine Coolant on page 6-25.
Inspect the battery and its cables. Cold
reduces battery capacity.
Use an engine oil appropriate for the
lowest ambient temperatures that the
vehicle will be driven in (page 6-23).
Inspect the ignition system for damage
and loose connections.
Use washer fluid made with
antifreeze―but do not use engine
coolant antifreeze for washer fluid (page
6-27).
NOTE
(Without electric parking brake (EPB))
Do not use the parking brake in freezing
weather as it may freeze. Instead, shift
to P with an automatic transaxle and to
1 or R with a manual transaxle. Block
the rear wheels.
Remove snow before driving. Snow left
on the windshield is dangerous as it
could obstruct vision.
Do not apply excessive force to a
window scraper when removing ice or
frozen snow on the mirror glass and
windshield.
Never use warm or hot water for
removing snow or ice from windows and
mirrors as it could result in the glass
cracking.
Drive slowly. Braking performance can
be adversely affected if snow or ice
adheres to the brake components. If this
situation occurs, drive the vehicle
slowly, releasing the accelerator pedal
and lightly applying the brakes several
times until the brake performance
returns to normal.
▼ Snow Tires
Use snow tires on all four wheels
Do not go faster than 120 km/h (75 mph)
while driving with sno
w tires. Inflate snow
tires 30 kPa (0.3 kgf/cm
2, 4.3 psi) more
than recommended on the tire pressure
label (driver's door frame), but never more
than the maximum c old-tire pressure
shown on the tires.

Except Mexico (18–inch wheel vehicle)
The vehicle is originally equipped with all
season radials designed to be used all year
around. In some extreme climates you
may find it necessary t o replace them with
snow tires during the winter months to
further improve traction on snow and ice
covered roads.
Mexico (18–inch wheel vehicle)
The vehicle is originally equipped with
summer tires designed for optimum
traction on wet and dry roads. If your
vehicle is to be used on snow and ice
covered roads, Mazda recommends that
you replace the tires originally equipped
on your vehicle with snow tires during the
winter months.
Before Driving
Driving Tips
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▼Warning Lights
These lights turn on or flash to notify the user of the system
operation status or a system
malfunction.
Signal Warning Page
Brake System Warning Light*1*27-25
ABS Warning Light*1
Electronic Brake
Force Distribu- tion SystemWa r n i n g 7-25
ABS warning 7-28
Charging System Warning Light*17-25
Engine Oil Warning Light*17-25
(Red) High Engine Coolant Temperature Warning Light
*17-25
Power Steering Malfunction Indicator Light*17-25
Master Warning Light*17-28
*Electric Parking Brake (EPB) Warning Light*17-28
Check Engine Light*17-28
*Automatic Transaxle Warning Light*17-28
Air Bag/Seat Belt Pretensioner System Warning Light*17-28
*Tire Pressure Monitoring System Warning Light*1
Flashing
7-28
Turns on 7-32
(Red) KEY Warning Light
*1
Turns on
7-28
Flashing 7-32
(Amber)
*High Beam Control System (HBC) Warning Light*17-28
When Driving
Instrument Cluster and Display
4-24*Some models.
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SignalIndicator Lights Page
(Green)KEY Indicator Light 4-5
Security Indicator Light*13-42
Wrench Indicator Light*14-28
(Blue)
Low Engine Coolant Temperature Indicator Light 4-28
*i-ELOOP Indicator Light
4-70
Shift Position Indication
4-34
Lights-On Indicator Light4-43
Headlight High-Beam Indicator LightHeadlight
High-Low Beam 4-46
Flashing the Headlights 4-46
Turn Signal/Hazard Warning Indicator Lights Turn and
Lane-Change Signals
4-48
Hazard Warning Flasher4-56
*Brake Pedal Operation demand Indicator Light 4-61
TCS/DSC Indicator Light*1
Traction Control
System (TCS) 4-67
Dynamic Stabil- ity Control(DSC)4-68
(Turns on) 7-28
DSC OFF Indicator Light*14-69
When Driving
Instrument Cluster and Display
4-26*Some models.
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▼Wrench Indicator Light
When the ignition is switched ON, the
wrench indicator light is illuminated and
then turns off after a few seconds.

The wrench indicator light is illuminated
when the preset maintenance period
arrives. Verify the content and perform
maintenance.
Refer to Maintenance Monitor on page 6-
16.
▼Low Engine Coolant Temperature
Indicator Light (Blue)
The light illuminates continuously when
the engine coolant temperature is low and
turns off after th
e engine is warm.
If the low engine coolant temperature
indicator light remains illuminated after
the engine has been sufficiently warmed
up, the temperature sensor could have a
malfunction. Consult an Authorized
Mazda Dealer.
When Driving
Instrument Cluster and Display
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CAUTION
If the air conditioner is used while driving
up long hills or in heavy traffic, monitor the
high engine coolant temperature warning
light to see if it is illuminated or flashing
(page 4-23).
The air conditioner may cause engine
overheating. If the warning light is
illuminated or flashing, turn the air
conditioner off (page 7-20).
NOTE
When maximum cooling is desired, set
the temperature control dial to the
extreme cold position and set the air
intake selector to the recirculated air
position, then turn the fan control dial
fully clockwise.
If warmer air is desired at floor level,
set the mode selector dial at the
position and adjust the temperature
control dial to maintain maximum
comfort.
The air to the floor is warmer than air
to the face (except wh en the temperature
control dial is set at the extreme hot or
cold position).
▼ Ventilation
1. Set the mode sel
ector dial to the
position.
2. Set the air intake selector to the outside air position.
3. Set the temperature control dial to the
desired position.
4. Set the fan control dial to the desired speed.
▼Windshield Defrosting and
Defogging
1. Set the mode selector dial to the
position.
2. Set the temperature control dial to the desired position.
3. Set the fan control dial to the desired speed.
4. If dehumidified heating is desired, turn
on the air conditioner.
WA R N I N G
Do not defog the windshield using the
position with the temperature control set to
the cold position:
Using the
position with the temperature
control set to the cold position is dangerous
as it will cause the outside of the
windshield to fog up. Your vision will be
hampered, which could lead to a serious
accident. Set the temperature control to the
hot or warm position when using the
position.
NOTE
For maximum defrosting, turn on the air
conditioner, set the temperature control
dial to the extreme hot position, and turn
the fan control dial fully clockwise.
If warm air is desired at the floor, set the
mode selector dial to the
position.
In the or position, the air
conditioner is automatically turned on
and the outside air position is
automatically selected to defrost the
windshield. In the
or position, the
outside air position cannot be changed
to the recirculated air position.
Interior Features
Climate Control System
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Scheduled Maintenance (Mexico)
Follow Schedule 1 if the vehicle is operated mainly where none of the following conditions
(severe driving conditions) apply.
Repeated short-distance driving
Driving in dusty conditions
Driving with extended use of brakes
Driving in areas where salt or other corrosive materials are us ed
Driving on rough or muddy roads
Extended periods of idling or low-speed operation
Driving for long periods in cold temperatures or extremely humi d climates
Driving in extremely hot conditions
Driving in mountainous conditions continually
If any do apply, follow Schedule 2.
NOTE
For maintenance guidelines beyond the kilome ters/months listed, follow the maintenance
intervals provided in the Scheduled Maintenance Tables.
▼ Schedule 1
Maintenance Interval Number of months or kilometers, whichever comes first
Months 6 1218243036424854606672
×1000 km 102030405060708090100110120
ENGINE
Drive belts II I
Engine oil & filter RRRRRRRRRRRR
COOLING SYSTEM
Cooling system II I
Engine coolant
*1Replace at first 200,000 km or 10 years; after that, every 100,000 km or 5 years
FUEL SYSTEM
Air filter RRRRRR
Fuel lines and hoses I
*2I*2I
Hoses and tubes for emission I
*2I*2I
Fuel filter Replace every 60,000 km
IGNITION SYSTEM
Spark plugs IIIIIIIIIIII
Replace every 120,000 km
Maintenance and Care
Scheduled Maintenance
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5. Pull it out again and examine the level.The level is normal if it is between the
MIN and MAX marks.
If it is near or below MIN, add enough
oil to bring the level to MAX.
CAUTION
Do not overfill the engine oil. This may
cause engine damage.
6. Make sure the O-ring on the dipstick is positioned properly before reinserting
the dipstick.
7. Reinsert the dipstick fully.
Engine Coolant
▼ Inspecting Coolant Level
WA R N I N G
Do not use a match or live flame 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 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.
Maintenance and Care
Owner Maintenance
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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 F and L marks on
the coolant reservoir when the engine is
cool.

If it is at or near L, add enough coolant to
the coolant reservoir to provide freezing
and corrosion protection and to bring the
level to F.
Securely tighten the coolant reservoir tank
cap after adding coolant.
CAUTION
 Radiator coolant will damage paint.
Rinse it off quickly if spilled.
 If the “FL22” mark is shown on or near
the cooling system cap, use of FL-22 is
recommended when replacing engine
coolant. Using engine coolant other than
FL-22 may cause serious damage to the
engine and cooling system.

If the coolant reserv oir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
Maintenance and Care
Owner Maintenance
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