2021 MAZDA MODEL 6 coolant level

NOTE
(SKYACTIV-D 2.2)
When inspecting the engine oil level,
pull out the dipstick straight without
twisting. In addition, when inserting
the dipstick, always insert it without
twisting so that the “X” mark faces the
front of the vehicle.
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.
NOTE
(SKYACTIV-D 2.2)
Inspect the engine oil level
periodically. When inspecting the
engine oil, if the engine oil level is
exceeds the “X” mark on the dipstick,
replace the engine oil. This should be
done by an Authorized Mazda Dealer.
When replacing the engine oil, inspect
the oil level using the oil dipstick and
refill so that the engine oil level is
within the range between MIN and
MAX as shown in the figure.
X Mark
MAX
MIN
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.
SKYACTIV-G 2.5

SKYACTIV-G 2.5T

SKYACTIV-D 2.2

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.
Maintenance and Care
Owner Maintenance
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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 reser voir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
Brake Fluid
▼ Inspecting Brake Fluid Level
WA R N I N G
If the brake fluid level is low, have the
brakes inspected:
A low brake
fluid level is dangerous.
A low level could indicate brake lining wear
or a brake system leak which could cause
the brakes to fail and lead to an accident.
Inspect the fluid level in the reservoir
regularly. It should be kept between the
MAX and MIN lines.
The level normally drops with
accumulated distance, a condition
associated with wear of brake linings. If it
is excessively low, have the brake system
inspected by an Authorized Mazda Dealer.
Maintenance and Care
Owner Maintenance
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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. 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.
7. When cool, check the coolant level.
If it is low, look for coolant leaks from
the radiator and hoses.

If Trouble Arises
Overheating
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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 6-25). 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 7-20.
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
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Index
Aluminum wheel maintenance.... 6-64
Bright-metal maintenance........... 6-63
Maintaining the finish................. 6-60
Plastic part maintenance.............. 6-64
F
Flasher Hazard warning........................... 4-91
Headlights.................................... 4-78
Flat Tire............................................... 7-3 Mounting the spare tire............... 7-12
Removing a flat tire...................... 7-8
Floor Mat.......................................... 3-45
Fluid Brake............................................6-28
Washer......................................... 6-29
Fluids Classification................................. 9-5
Foot Brake.......................................4-100
Forward Sensing Camera (FSC)..... 4-215
Fuel Filler lid and cap......................... 3-27
Requirements (SKYACTIV-D
2.2)............................................... 3-22
Requirements (SKYACTIV-G 2.5,
SKYACTIV-G 2.5T)....................3-21
Tank capacity.................................9-5
Fuses.................................................. 6-52 Panel description......................... 6-55
Replacement................................ 6-52
G
Gauges............................................... 4-13
Glove Compartment.......................... 5-37
H
Hazardous Driving............................ 3-45
Hazard Warning Flasher....................4-91
HeadlightsComing home light......................4-82
Control......................................... 4-78
Flashing....................................... 4-82
Headlight flashing....................... 4-82
High-low beam............................ 4-82
Leaving home light..................... 4-83
Leveling....................................... 4-83
Head Restraint................................... 2-17
High Beam Control System
(HBC).............................................. 4-123 High Beam Control System (HBC)
indicator light (green)................4-124
Hill Launch Assist (HLA).......... .... 4-109
HomeLink Wireless Control System
(Type A)............................................ 4-92
HomeLink Wireless Control System
(Type B)............................................ 4-95
Hood Release............. ....................... 6-18
Horn...................................................4-91
I
If a Warning Light Turns On or
Flashes............................................... 7-25
If the Active Driving Display Does Not
Operate.............................................. 7-51
Ignition Switch............................................ 4-4
Ignition Not Switched Off (STOP)
Warning Beep.................................... 7-46
Illuminated Entry System................. 5-32
Immobilizer System..... ..................... 3-40
Inside Trunk Release Lever.............. 3-20
Inspecting Brake Fluid Level............ 6-28
Inspecting Coolant Level.................. 6-26
Inspecting Engine Oil Level............. 6-25
Inspecting Washer Fluid Level......... 6-29
Instrument Cluster............................. 4-13 Instrument Cluster (Type A)........4-14
Instrument Cluster (Type B)........ 4-33
Instrument Cluster (Type C)........ 4-51
Instrument Cluster (Type A)............. 4-14
10-4
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