2019 MAZDA MODEL 6 coolant temperature

▼Inspecting Engine Oil Level
1. Be sure the vehicle is on a level
surface.
2. Warm up the engine to normal operating temperature.
3. Turn it off and wait at least 5 minutes for the oil to return to the oil pan.
4. Pull out the dipstick, wipe it clean, and
reinsert it fully.

MAX
OK
MIN
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
6-26
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

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.
SKYACTIV-G 2.5

SKYACTIV-G 2.5T

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 reservoir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
Maintenance and Care
Owner Maintenance
6-27
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

▼Aluminum Wheel Maintenance
A protective coating is provided over the
aluminum wheels. Special care is needed
to protect this coating.
CAUTION
Do not use any detergent other than mild
detergent. Before using any detergent,
verify the ingredients. Otherwise, the
product could discolor or stain the
aluminum wheels.
NOTE
Do not use a wire brush or any abrasive
cleaner, polishing compound, or solvent
on aluminum wheels. They may damage
the coating.
Always use a sponge or soft cloth to
clean the wheels.
Rinse the wheels thoroughly with
lukewarm or cold water. Also, be sure to
clean the wheels after driving on dusty
or salted roads to help prevent
corrosion.
Avoid washing your vehicle in an
automatic car wash th
at uses high-speed
or hard brushes.
▼ Plastic Part Maintenance
When cleaning the plastic lenses of the
lights, do not use gasoline, kerosene,
rectified spirit, paint, thinner, highly
acidic detergents, or strongly alkaline
detergents. Otherwise, these chemical
agents can discolor or damage the
surfaces resulting in a
significant loss in
functionality. If plastic parts become
inadvertently exposed to any of these
chemical agents, flush with water
immediately.
If plastic parts s uch as the bumpers
become inadvertently exposed to
chemical agents or fluids such as
gasoline, oil, engine coolant, or battery
fluid, it could cause discoloration,
staining, or paint peeling. Wipe off any
such chemical agents or fluids using a
soft cloth immediately.
High water temperature and high water
pressure car washers are available
depending on the type of high pressure
car washer device. If the car washer
nozzle is put too close to the vehicle or
aimed at one area for an extended period
of time, it could deform plastic parts or
damage the paint.
Do not use wax containing compounds
(polish). Otherwise, it could result in
paint damage.
In addition, do not use an electrical or
air tool to apply wax. Otherwise, the
frictional heat generated could result in
deformation of plastic parts or paint
damage.
Maintenance and Care
Appearance Care
6-59
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

Overheating
If the temperature gauge indicates
overheating or the high engine coolant
temperature warning light turns on, 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 temperature gauge indicates
overheating or the high engine coolant
temperature warning light turns on:

1. Drive safely to the side of the road and
park off the right-of-way.
2. Put a vehicle with an automatic transaxle in park (P), a manual
transaxle 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.
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
7-18
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

SignalWarning
Charging System Warn‐
ing Indication/Warning Light If the warning light illuminates
while driving, it indicates a malfunction of the alter‐
nator or of the charging system.
Drive to the side of the road and park off the right-of-way. Co nsult an Authorized
Mazda Dealer.
CAUTION
Do not continue driving when the charging system warning light is illuminated be‐
cause the engine could stop unexpectedly.
Engine Oil 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 o n 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 6-26). If it's low, add th e 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.
(Red)
High Engine Coolant
Temperature Warning
Indication/Warning
Light The light flashes when the engine coolant temperature is extrem
ely high, and illumi‐
nates when the engine coolant temperature increases further.
Handling Procedure
Flashing light
Drive slowly to reduce engine l oad until you can find a safe place to stop the vehicle
and wait for the engine to cool down.
Illuminated light
This indicates the possibility of overheating. Park the vehicle in a safe place immedi‐
ately and stop the engine.
Refer to Overheating on page 7-18.
CAUTION
Do not drive the vehicle with the high engi ne coolant temperature warning light illumi‐
nated. Otherwise, it could resu lt in damage to the engine.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-25
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

Message Indicated on Display
If a message is displayed in the center display, take appropriate action (in a calm manner)
according to the displayed message.

(Display example)
▼ Stop Vehicle in Safe Place Immediately
If the following messages are dis
played in the center display , a vehicle system may be
malfunctioning. Stop the vehicle in a safe place and contact an Authorized Mazda Dealer.
Display Indicated Condition
Displays if the engine coolant temperature has increased excess ively.
Displays if the charging system has a malfunction.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-38
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

Index
Horn...................................................4-85
I
If a Warning Light Turns On or
Flashes............................................... 7-23
If the Active Driving Display Does Not
Operate.............................................. 7-48
IgnitionSwitch............................................ 4-4
Ignition Not Switched Off (STOP)
Warning Beep.................................... 7-43
Illuminated Entry System................. 5-87
Immobilizer System.......................... 3-35
Inside Trunk Release Lever.............. 3-18
Inspecting Brak e/Clutch Fluid
Level.................................................. 6-28
Inspecting Coolant Leve l.................. 6-26
Inspecting Engine Oil Level............. 6-26
Inspecting Washer Fluid Level......... 6-28
Instrument Cluster...... ....................... 4-12
Instrument Cluster (Type A)........4-13
Instrument Cluster (Type B)........4-30
Instrument Cluster (Type C)........4-46
Instrument Cluster (Type A)............. 4-13 Average Fuel Economy............... 4-21
Blind Spot Monitoring (BSM)
Display......................................... 4-21
Compass Display......................... 4-23
Cruise Control Set Vehicle Speed
Display......................................... 4-23
Current Fuel Econo my................ 4-21
Dashboard Illumina tion............... 4-19
Distance Recognition Support System
(DRSS) Display........................... 4-22
Distance-to-empty....................... 4-20
Engine Coolant Temperature
Gauge........................................... 4-18
Fuel Gauge.................................. 4-18
Indication/Indicator Lights.......... 4-26
Lane-keep Assist System (LAS) &
Lane Departure Warning System
(LDWS) Display..........................4-22
Maintenance Monitor.................. 4-21
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function) D isplay.......4-22
Message Indicated in Multi-
information Display (Type A)..... 7-40
Multi-information Display (Type
A)................................................. 4-14
Odometer..................................... 4-17
Outside Temperature Display...... 4-20
Speedometer................................ 4-13
Speed Unit Selector..................... 4-19
Tachometer.................................. 4-13
Traffic Sign Recognition System
(TSR) Display..............................4-22
Trip Meter....................................4-17
Warning Indication/Warning
Lights........................................... 4-24
Warning (Display Indication)...... 4-23
Instrument Cluster (Type B)............. 4-30 Average Fuel Economy............... 4-37
Blind Spot Monitoring (BSM)
Display......................................... 4-38
Compass Display......................... 4-39
Cruise Control Set Vehicle Speed
Display......................................... 4-39
Current Fuel Econo my................ 4-37
Dashboard Illumina tion............... 4-35
Distance Recognition Support System
(DRSS) Display........................... 4-38
Distance-to-empty....................... 4-36
Engine Coolant Temperature
Gauge........................................... 4-34
Fuel Gauge.................................. 4-34
Indication/Indicator Lights.......... 4-42
Lane-keep Assist System (LAS) &
Lane Departure Warning System
(LDWS) Display..........................4-38
10-5
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06

Index
Maintenance Monitor.................. 4-37
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function) Display.......4-38
Message Indicated in Multi-
information Display (Type B)..... 7-40
Multi-information Display (Type
B)................................................. 4-31
Odometer..................................... 4-33
Outside Temperature Display...... 4-36
Speedometer................................ 4-30
Tachometer.................................. 4-30
Traffic Sign Recognition System
(TSR) Display..............................4-38
Trip Meter....................................4-33
Warning Indication/Warning
Lights........................................... 4-40
Warning (Display Indication)...... 4-39
Instrument Cluster (Type C)............. 4-46
Cruise Control Set Vehicle Speed
Display......................................... 4-53
Dashboard Illuminati on............... 4-50
Engine Coolant Temperature
Gauge........................................... 4-49
Fuel Gauge.................................. 4-49
Indication/Indi cator Lights.......... 4-56
Multi-information Display (Type
C)................................................. 4-47
Odometer..................................... 4-48
Outside Temperature Display...... 4-51
Speedometer................................ 4-46
Tachometer.................................. 4-46
Trip Computer............................. 4-51
Trip Meter....................................4-48
Warning Indication/Warning
Lights........................................... 4-54
Interior Care...................................... 6-60
Active driving display
maintenance................................. 6-62
Cleaning the floor mats............... 6-63
Cleaning the window interiors.....6-62Instrument panel top (Soft pad)
maintenance................................. 6-62
Leather upholstery
maintenance................................. 6-61
Panel maintenance....................... 6-62
Plastic part maintenance.............. 6-61
Seat belt maintenance..................6-60
Upholstery maintena nce.............. 6-61
Vinyl upholstery maintenance..... 6-60
Interior Lights................................... 5-84
Courtesy lights.............................5-84
Map lights....................................5-84
Overhead lights............................5-84
i-ACTIVSENSE.............................. 4-115 Active safety technology........... 4-115
Adaptive Front Lighting System
(AFS)......................................... 4-118
Advanced Smart City Brake Support
(Advanced SCBS)..................... 4-168
Blind Spot Monitoring (BSM) ............
................................................... 4-122
Camera and sensors................... 4-116
Distance Recognition Support System
(DRSS).......................................4-136
Forward Sensing Camera
(FSC)......................................... 4-204
High Beam Control System
(HBC)........................................ 4-119
Lane-keep Assist System (LAS) &
Lane Departure Warning System
(LDWS)..................................... 4-157
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)..................4-144
Pre-crash safety technology....... 4-115
Radar sensors (rear)...................4-212
Radar sensor (front)...................4-209
Rear Cross Traffic Alert
(RCTA)...................................... 4-140
Smart Brake Suppor t (SBS)...... 4-174
10-6
Mazda6_8HK6-EA-19A_Edition1 2018-11-15 9:36:06