2024 MAZDA CX90 engine coolant

Ve h i c l e Pro b l e m Wa r n i n gSound
If any of the following problems occur,
a warning sound is activated.
Automatic transmission problemIncrease in automatic transmission
internal temperature
Hybrid system problemBrake system problemElectric Parking Brake (EPB) problemEngine oil pressure decreaseEngine coolant temperature increaseEngine system problemShift control system problemCharging system problemApproaching vehicle audible system
problem
Check the information regarding the
warning indication on the center
display or the instrument cluster.
Shift Position Warning Sound
A warning sound is activated when the
selector lever position and the shift
position of the vehicle do not match.
Check the selector lever position.
What to Do in Case of Emergency
Warning Sound is Activated
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9Inspection and Servicing/Cleaning
Inspection and Servicing............ 9-2Inspection and Servicing.........9-2
Scheduled Maintenance............ 9-4 Scheduled Maintenance......... 9-4
Daily Inspection........................9-7 Daily Inspection.....................9-7
Warnings and Cautions for Daily
Inspection............................. 9-8
Engine Compartment
Inspection................................ 9-9 Checking the Inspection
Locations and Inspection
Items.................................... 9-9
Inspecting Engine Oil........... 9-13
Inspecting the Coolant......... 9-14
Inspecting the Brake Fluid..... 9-16
Replenishing Windshield Washer
Fluid................................... 9-17
Inspecting Lead-acid
Battery................................ 9-18
Replacing the Fuses.............. 9-21
Inspecting Body
Lubrication.......................... 9-22
Vehicle Exterior Inspection....... 9-23 Checking the Inspection
Locations and Inspection
Items.................................. 9-23
Replacing Windshield Wiper
Blade Rubbers..................... 9-23
Inspecting the Tires.............. 9-27Rotating the Tires................. 9-28
Replacing a Tire or a
Wheel................................. 9-29
Replacing Light Bulbs........... 9-30
Vehicle Interior Inspection....... 9-31 Checking the Inspection
Locations and Inspection
Items.................................. 9-31
Air Conditioner
Maintenance....................... 9-32
Key Inspection........................ 9-33 Warnings and Cautions about Key
Battery Replacement............ 9-33
Replacing the Key Battery..... 9-33
Exterior Maintenance.............. 9-35 Exterior Maintenance........... 9-35
Wheel Maintenance.............9-36
Interior Maintenance............... 9-37 Interior Maintenance........... 9-37
Instrument Panel Top (Soft pad)
Maintenance....................... 9-37
Upholstery and Synthetic Leather
Maintenance....................... 9-38
Leather Upholstery
Maintenance....................... 9-38
Maintenance of the Dust-proof
Sheet of the Active Driving
Display................................9-39
Seat Belt Maintenance......... 9-40
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Scheduled Maintenance
Vehicles utilizing the vehicle status monitor feature:
The vehicle status monitor feature alerts you of maintenance needs by turning on the
wrench indicator light or displaying a message in the instrument panel, or both.
Every maintenance must be done when the display/wrench indication comes on.
The display/wrench indication will come on before reaching the maximum interval
of 16,000 km (10,000 miles), or 12 mont hs (after the previous maintenance).
If you drive your vehicle under any of th e following conditions, follow the Severe
Driving Scheduled Maintenance and replace the engine oil and filter every 8,000 km
(5,000 miles) or 6 months, whichever comes first.
Otherwise, follow the Normal Driv ing Scheduled Maintenance intervals.
1. The vehicle is idled for long periods or driven at low speeds, such as with police cars, taxis, or driver's education school car.
2. The vehicle is driven mainly unpaved road.
3. The vehicle is driven mainly on mountain roads or uphill roads.
If you are following the Severe Driving Scheduled Maintenance (8,000 km (5,000
miles) or 6 months oil replacement interval), set the vehicle status monitor manually.
Refer to the Information section in the Mazda Connect Owner's Manual. Please
contact an Authorized Mazda Dealer if necessary.
USA and Canada Residents (Normal Driving Scheduled Maintenance):
Maintenance Item Number of times, maintenance was performed.
12345678
Engine oil & filter
*1RRRRRRRR
Spark plugs Replace every 120,000 km (75,000 miles).
Air filter RR
Fuel lines & hoses
*2IIII
Hoses and tubes for emission
*2II
Drive belts IIIIIIII
Exhaust system and heat shields II
Coolant level IIIIIIII
Coolant
*3
Engine Replace at first 192,000 km (120,000 miles) or 120
months; after that, every 96,000 km (60,000 miles) or 60 months.
EV system Replace at first 192,000 km (120,000 miles) or 180
months; after that, every 96,000 km (60,000 miles) or 60 months.
Brake lines, hoses and connections III I
Brake and clutch fluid level IIIIIIII
B ra ke fl uid RRRR
Inspection and Servicing/Cleaning
Scheduled Maintenance
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Maintenance ItemNumber of times, maintenance was performed.
12345678
Disc brakes IIIIIIII
Steering operation and linkages II II
Front and rear suspension, ball joints and
wheel bearing axial play IIII
Body condition inspection for
rust, corrosion and perfora-
tion Canada IIIIIIII
Driveshaft dust boot II II
Bolts and nuts on chassis and body TTT T
Cabin air filter Replace every 48,000 km (30,000 miles) or 24 months.
Tire rotation Rotate every 12,000 km (7,500 miles).
Tire inflation pressure and tire wear
*4Inspect every 12,000 km ( 7,500 miles) or 12 months.
Emergency flat tire repair kit (if equipped)
*5Inspect annually.
Function of all lights IIIIIIII
Chart symbols:
I: Inspect: Inspect and clean, repair, adjust, fill up, or replace if necessary.
R: Replace
T: Tighten
Remarks:
*1 Reset the engine oil data whenever replacing the engine oil regardless of the message/wrench indicator light display.
*2 According to state/provincial and federal regulations, failure to perform maintenance on these itemswill not void your emissions warranties. However, Mazda recommends that all maintenance services
be performed at the recommended time or mileage/kilometer period to ensure long-term reliability.
*3 Use of FL-22 is recommended when replacing coolant. Using coolant other than FL-22 may causeserious damage to the engine and cooling system.
*4 Inspect a spare tire if equipped.*5 Check the tire repair fluid expiration date every year when performing the periodic maintenance.Replace the tire repair fluid bottle with new one before the expiration date.
Inspection and Servicing/Cleaning
Scheduled Maintenance
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Daily Inspection
The owner or a qualified service
technician should make these vehicle
inspections at the indicated intervals to
ensure safe and dependable
operation.

Bring any problem to the attention of
an Authorized Mazda Dealer or
qualified service technician as soon as
possible.
When Refueling
Brake fluid level (page 9-16)Coolant level (page 9-14)Engine oil level (page 9-13)Washer fluid level (page 9-17)
At Least Monthly
Tire inflation pressures (page 9-27)
At Least Twice a Year (For Example,
Every Spring and Fall)
You can do the following scheduled
maintenance items if you have some
mechanical ability and a few basic
tools and if you closely follow the
directions in this manual.
Coolant (page 9-14)Engine oil (page 9-13)

Improper or incomplete service may
result in problems. This section gives
instructions only for items that are easy
to perform.

As explained in the Inspection and
Servicing section (page 9-2), several
procedures can be done only by a
qualified service technician with
special tools.

Improper owner maintenance during
the warranty period may affect
warranty coverage. Refer to the
Inspection and Servicing section (page
9-2) for owner's responsibility in
protecting your investment. For details,
read the separate Mazda Warranty
statement provided with the vehicle. If
you are unsure about any servicing or
maintenance procedure, have it done
by an Authorized Mazda Dealer.

There are strict environmental laws
regarding the disposal of waste oil and
fluids. Please dispose of your waste
properly and with due regard to the
environment.

We recommend that you entrust the oil
and fluid changes of your vehicle to an
Authorized Mazda Dealer.
Inspection and Servicing/Cleaning
Daily Inspection
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Checking the Inspection Locations and InspectionItems
1. Lead-acid battery
2. Engine oil
3. Brake fluid
4. Coolant
5. Windshield washer fluid

Opening the engine cover
1. Open the hood (page 4-27).
2.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
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comprised of U.S. and Japanese
automobile manufacturers.
Inspecting the Coolant
WARNING
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 vehicle power 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.
NOTE
Changing the coolant should be done
by an Authorized Mazda Dealer.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
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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.

There are two cooling circuits: one for
the automatic transmission, and the
other for the engine. Check both
circuits.
The coolant should be at full in the
radiator and between the F and L
marks, and between the FULL and
LOW marks on the coolant reservoir
when the engine is cool.
There are two coolant reservoir tanks.
Check each of them.
1. The tank for the EV system
2. The tank for the engine

If it is at or near the LOW position, add
enough coolant to the coolant
reservoir to provide freezing and
corrosion protection and to bring the
level to FULL.
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.
Inspection and Servicing/Cleaning
Engine Compartment Inspection
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