2019 MAZDA MODEL CX-30 cooling

SKYACTIV-X 2.0
1. Engine oil dipstick
2. Engine oil-filler cap
3. Engine cover
4. Brake/Clutch fluid reservoir
5. Battery
6. Fuse block
7. Cooling system cap
8. Engine coolant reservoir
9. Windscreen washer fluid reservoir
Maintenance and Care
Owner Maintenance
6-20

SKYACTIV-D 1.8
1. Engine oil-filler cap
2. Engine oil dipstick
3. Brake/Clutch fluid reservoir
4. Battery
5. Fuse block
6. Cooling system cap
7. Engine coolant reservoir
8. Windscreen washer fluid reservoir
Maintenance and Care
Owner Maintenance
6-23

3. MIN

SKYACTIV-D 1.8

1. X Mark
2. MAX
3. OK
4. MIN

NOTE
(SKYACTIV-D 1.8)
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.
6. 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.
7. Make sure the O-ring on the
dipstick is positioned properly
before reinserting the dipstick.
8. Reinsert the dipstick fully.
Engine Coolant
▼Inspecting Coolant Level
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 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
6-28

NOTE
If the replacement is not done using
the correct procedure indicated in the
service manual, it could cause an
engine malfunction. Consult an expert
repairer (we recommend an
Authorised Mazda Repairer) for
details.
Inspect the antifreeze protection and
coolant level in the coolant reservoir at
least once a yearŠat the beginning of
the winter seasonŠand before
travelling 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 FULL and
LOW marks on the coolant reservoir
when the engine is cool.

If it is at or near LOW, 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
¾Radiator coolant will damage paint.
Rinse it off quickly if spilled.
¾If 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 expert repairer (we recommend an
Authorised Mazda Repairer).
Maintenance and Care
Owner Maintenance
6-29

No.FUSE RAT-
INGPROTECTED COMPONENT
F39ŠŠ
F40 40 A Air conditioner
F41ŠŠ
F42 20 A Windscreen wiper
F43 30 A
Cooling fan
*
F44 30 A Starter
F45 10 A Engine control system
F46 15 A Audio
F47 15 A For protection of various circuits
F48 7.5 A Air bag
F49 15 A Instrument cluster
F50 15 A Room light
F51 25 A Audio
F52 10 A
Sunroof
*
F53 15 A Engine control system
F54 15 A i-ACTIVSENSE
F55 50 A
For protection of various circuits
*
F56 50 AŠ
Maintenance and Care
Owner Maintenance
*Some models.6-51

Route the jumper leads away from parts that will be moving:
Connecting a jumper lead near or to moving parts (cooling fans, belts) is dangerous.
The lead could get caught when the engine starts and cause serious injury.
CAUTION
Use only a 12 V booster system. You can damage a 12 V starter, ignition system, and
other electrical parts beyond repair with a 24 V power supply (two 12 V batteries in
series or a 24 V motor generator set).
1. Move the booster vehicle so that its battery is as close as possible to your
vehicle's battery.
2. Make sure that the power such as for the headlights and air conditioner is turned
off.
3. Remove the battery cover.
4. Turn off the booster vehicle's engine and connect the jumper leads in the
following order.
Make sure that the jumper leads are securely connected so that they do not
disconnect due to engine vibrations.
1st lead
Positive (+) terminal on the discharged battery
Positive (+) terminal on booster vehicle's battery
2nd lead
Negative (-) terminal on booster vehicle's battery
If Trouble Arises
Battery Runs Out
7-40

Overheating
▼Overheating
If the engine coolant temperature
gauge indicates overheating and the
high engine coolant temperature
warning indication is displayed, 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 bonnet 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 engine coolant temperature
gauge indicates overheating and the
high engine coolant temperature
warning indication is displayed:

1. Drive safely to the side of the road
and park off the right-of-way.
2. Put a vehicle with an automatic
transmission in park (P), a manual
transmission 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 bonnet and start the
engine.

If neither coolant nor steam is
escaping:
Open the bonnet 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 expert
repairer (we recommend an
Authorised Mazda Repairer).
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
7-44

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 expert
repairer (we recommend an
Authorised Mazda Repairer).
1. Cooling system cap
2. Cooling fan
3. Coolant reservoir

If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required
(page 6-28).
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 expert repairer (we
recommend an Authorised Mazda
Repairer).
If Trouble Arises
Overheating
7-45