2021 MAZDA MODEL CX-9 engine coolant

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.
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 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 Trouble Arises
Overheating
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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.
Cooling system cap
Coolant reservoir
Cooling fan
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
6-22).
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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SignalWarning
Charging System Warn‐
ing Indication/Warning Light If the warning light illuminates while drivin
g, it indicates a malfunction of the alter‐
nator or of the charging system.
Drive to the side of the ro ad and park off the right-of -way. Consult 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 pa rk off the right-of-way on level ground.
2. Turn off the engine and wait 5 minutes fo r the oil to drain back into the oil pan.
3. Inspect the engine oil level (page 6-21). 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 th e 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 extremely high, and illumi
‐
nates when the engine coolant temperature increases further.
Handling Procedure
Flashing light
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.
Illuminated light
This indicates the possibility of overheati ng. Park the vehicle in a safe place immedi ‐
ately and stop the engine.
Refer to Overheating on page 7-23.
CAUTION
Do not drive the vehicle with the high engine 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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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 displayed 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 excessively.
Displays if the charging system has a malfunction.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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DisplayContent Action to be taken
Indicates when the cancel operation is
done without depressing the brake pedal
while the vehicle is being held in the
stopped position by the AUTOHOLD
function. Cancel the AUTOHOLD function stop
hold control while depressing the brake
pedal.
Indicated when the engine coolant tem
‐
perature is high or the engine is hot, and
the engine output is limited. Drive slowly and make sure that the in
‐
dication turns off.
If the indication does not turn off, con ‐
sult an Authorized Mazda Dealer.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Specifications
▼Engine
Item
Specification
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 89.0 × 100 mm (3.50 × 3.94 in)
Displacement 2,488.5 ml (2,488.5 cc)
Compression ratio 10.5
▼Electrical System
Item
Classification
Battery
*112V-60Ah/20HR or 12V-65Ah/20HR
Spark-plug number Mazda Genuine spark plug
*2PY8V-18-110
*1 Check the battery installed on the vehicle and use a battery with an equal or higher performance. However, the
performance of the battery may vary even among the sa me battery types, consult an Authorized Mazda Dealer
for replacement.
*2 The spark plugs provide the SKYACTIV-G its optimum performance. Consult an Authorized Mazda Dealer
for details.
CAUTION
When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on the
iridium alloy and platinum tips could be damaged.
▼ Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-20.
Coolant FL-22 type
Automatic transaxle fluid Mazda Genuine ATF FZ
Transfer case oil Mazda Long Life Hypoid Gear Oil SG1
Rear differential oil Mazda Long Life Hypoid Gear Oil SG1
Brake fluid SAE J1703 or FMVSS116 DOT-3
NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your investment.
Specifications
Specifications
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Index
Front Air Conditioner....................5-5
Fully Automatic Type....................5-5
Operating tips................................ 5-2
Operating Tips............................... 5-2
Rear Air Conditioner................... 5-11
Vent operation................................5-3
Vent Operation...............................5-3
Vent Operation (Front).................. 5-3
Vent Operation (Rear)................... 5-9
Collision warning.............................. 7-51
Coming Home Light......................... 4-74
Cruise Control................................. 4-247 Cruise control switch.................4-247
Cruise main indication (white)/cruise
set indication (green)................. 4-248
Cup Holder........................................ 5-66
Customer Assistance. .......................... 8-2
D
Daytime Running Lights................... 4-75
Defogger
Mirror...........................................4-82
Rear window........... .................... 4-82
Dimensions.......................................... 9-5
Display...............................................4-11
Distance Recognition Support System
(DRSS)............................................ 4-133 Indication on display................. 4-133
Door Locks........................................3-12
Driver Attention Alert (DAA).........4-137
Drive Selection................................4-109
Driving In Flooded Ar ea...................3-54
Driving on Uneven Road.................. 3-55
Driving Tips Automatic transaxle.....................4-69
Break-in period............................ 3-49
Driving in flooded area............... 3-54
Driving on uneven road...............3-55
Floor mat..................................... 3-51
Hazardous driving.. ..................... 3-50
Overloading............. .................... 3-54
Rocking the vehicle. .................... 3-51
Saving fuel and protection of the
environment................................. 3-49
Turbocharged vehicles.................3-56
Winter driving............................. 3-52
Dynamic Stability Control (DSC)... 4-105
TCS/DSC indicator light........... 4-105
E
Electric parking brake (EPB)............ 4-92
Electric Parking Brake (EPB) Warning
Beep...................................................7-49
Emergency StartingPush-starting................................ 7-22
Starting a flooded engine............ 7-22
Emergency Towing Towing description...................... 7-25
Towing hooks............. ................. 7-26
Emission Control System..................3-30
Engine Coolant.........................................6-22
Engine compartment overview.... 6-19
Exhaust gas..................................3-31
Hood release................................ 6-17
Oil................................................ 6-20
Starting...........................................4-5
Essential Information.......................... 6-2
Event Data Recorder......................... 8-21
Exhaust Gas...................................... 3-31
Exterior Care..................................... 6-52 Aluminum wheel maintenance.... 6-57
Bright-metal maintenance........... 6-56
Maintaining the fini sh................. 6-53
Plastic part maintenance.............. 6-57
F
Flasher
Hazard warning........................... 4-84
Headlights.................................... 4-70
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Index
Flat Tire............................................... 7-3Mounting the spare tire............... 7-13
Removing a flat tire...................... 7-9
Floor Mat.......................................... 3-51
Fluid
Brake............................................6-23
Washer......................................... 6-24
Fluids Classification................................. 9-4
Fog Lights......................................... 4-76
Foot Brake.........................................4-92
Forward Sensing Camera (FSC)..... 4-235
Front Seat............................................ 2-5
Fuel
Filler lid and cap......................... 3-32
Requirements............................... 3-29
Tank capacity.................................9-5
Fuses.................................................. 6-46 Panel description......................... 6-48
Replacement................................ 6-46
G
Gauges............................................... 4-11
Glove Compartment.......................... 5-69
H
Hazardous Driving............................ 3-50
Hazard Warning Flasher....................4-84
Headlights
Coming home light......................4-74
Control......................................... 4-70
Headlight flashing....................... 4-74
High-low beam............................ 4-74
Leaving home light..................... 4-74
Leveling....................................... 4-75
Head Restraint................................... 2-28
High Beam Control System
(HBC).............................................. 4-118 High Beam Control System (HBC)
indicator light (green)................ 4-119
Hill Launch Assist (HLA).............. 4-100
HomeLink Wireless Control System
(Type A)............................................ 4-84
HomeLink Wireless Control System
(Type B)............................................ 4-88
Hood Release............. ....................... 6-17
Horn...................................................4-83
I
If a Warning Light Turns On or
Flashes............................................... 7-28
If the Active Driving Display Does Not
Operate.............................................. 7-53
Ignition
Switch............................................ 4-4
Ignition Not Switched Off (STOP)
Warning Beep.................................... 7-48
Illuminated Entry System................. 5-58
Immobilizer System..... ..................... 3-45
Inspecting Brake Fluid Level............ 6-23
Inspecting Coolant Level.................. 6-22
Inspecting Engine Oil Level............. 6-21
Inspecting Washer Fluid Level......... 6-24
Instrument Cluster............................. 4-11 Instrument Cluster (Type A)........4-12
Instrument Cluster (Type B)........ 4-29
Instrument Cluster (Type C)........ 4-44
Instrument Cluster (Type A)............. 4-12 Average Fuel Econom y............... 4-19
Blind Spot Monitoring (BSM)
Display......................................... 4-20
Compass Display......................... 4-21
Cruise Control Set Vehicle Speed
Display......................................... 4-21
Current Fuel Econom y................ 4-20
Dashboard Illumination............... 4-17
Distance Recognition Support System
(DRSS) Display........................... 4-21
Distance-to-empty... .................... 4-19
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