engine MAZDA MODEL CX-30 2019 Owners Manual (in English)

Engine oil viscosity, or thickness, has an effect on fuel economy and cold-weather
operation (starting and oil flow).
Low-viscosity engine oils can provide improved fuel economy and cold-weather
performance.

When choosing an oil, consider the temperature range your vehicle will operate in
before the next oil change.
Then select the recommended viscosity from the chart.
CAUTION
¾Using oils of viscosity besides those recommended for
specific temperature ranges
could result in engine damage.
¾(SKYACTIV-D 1.8)
SKYACTIV-D 1.8 uses specified oil. Please confirm the specification in owner's
manual. If engine oil other than the specified oil is used, the Diesel Particulate
Filter effective period of use will be shortened or the Diesel Particulate Filter may
be damaged.
NOTE
(SKYACTIV-G 2.0,
SKYACTIV-G 2.5, and
SKYACTIV-X 2.0)
xIt is normal for all engines to consume engine oil under normal driving conditions.
Engine oil consumption may be as high as 0.8 L/1,000 km (1 L/800 miles). This
may be as a result of evaporation, internal ventilation or burning of the lubricating
oil in the working engine. Oil consumption may be higher when the engine is new
due to the running-in process. Oil consumption is also dependant on engine
speed and engine load. Under extreme driving conditions, oil consumption may
be higher.
(SKYACTIV-D 1.8)
xInspect the engine oil level periodically. When inspecting the engine oil, if the
engine oil level exceeds the “X” mark on the dipstick, replace the engine oil.
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.
1. MIN
2. MAX
3. X Mark
Maintenance and Care
Owner Maintenance
6-26

xWhenever the engine oil is replaced, the vehicles engine control unit needs to be
reset as soon as possible. Otherwise the wrench indicator light or engine oil
warning light may turn on. To reset the engine control unit, consult an expert
repairer (we recommend an Authorised Mazda Repairer) or refer to the vehicle
status monitor section in the Mazda Connect Owner's Manual.
▼Inspecting Engine Oil Level
NOTE
xIf the engine oil level warning
indication/warning light turns on,
add 1 L (0.3 US gal, 0.2 Imp gal) of
engine oil.
x(SKYACTIV-D 1.8)
If “Excessive Oil Level. Have the
Vehicle Inspected” is displayed on
the multi-information display in the
instrument cluster, have your vehicle
inspected at an expert repairer (we
recommend an Authorised Mazda
Repairer).
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
sump.
4.(SKYACTIV-X 2.0)
Open the engine cover (page
6-19).
5. Pull out the dipstick, wipe it clean,
and reinsert it fully.
SKYACTIV-G 2.0 and SKYACTIV-G
2.5

1. MAX
2. OK
3. MIN

SKYACTIV-X 2.0

1. MAX
2. OK
Maintenance and Care
Owner Maintenance
6-27

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

Window and Headlight
Washer Fluid
▼Inspecting Washer Fluid Level
WARNING
Use only windscreen washer fluid or
plain water in the reservoir:
Using radiator antifreeze as washer
fluid is dangerous. If sprayed on the
windscreen, it will dirty the
windscreen, affect your visibility, and
could result in an accident.
Inspect fluid level in the washer fluid
reservoir; add fluid if necessary.

The top of the float should be between
F and E.

Use plain water if washer
fluid is
unavailable.
But use only washer fluid in cold
weather to prevent it from freezing.
NOTE
Front and rear washer
fluid is supplied
from the same reservoir.
Body Lubrication
▼Body Lubrication
All moving points of the body, such as
door and bonnet hinges and locks,
should be lubricated each time the
engine oil is changed. Use a
nonfreezing lubricant on locks during
cold weather.

Make sure the bonnet's secondary
latch keeps the bonnet from opening
when the primary latch is released.
Maintenance and Care
Owner Maintenance
6-31

▼Inspecting Electrolyte Level
A low level of electrolyte fluid will
cause the battery to discharge quickly.

1. Upper level
2. Lower level
Inspect the electrolyte level at least
once a week. If it is low, remove the
caps and add enough distilled water to
bring the level between the upper and
lower level (illustration).

Do not overfill.
Examine the specific gravity of the
electrolyte with a hydrometer,
especially during cold weather. If it is
low, recharge the battery.
▼Battery Recharging
NOTE
xBefore performing maintenance or
recharging the battery, turn off all
accessories and stop the engine.
xTo disconnect the battery, remove
the negative lead first. Install it last
when connecting the battery.
xBe sure to remove the caps before
recharging the battery.
xDo not quick-charge the battery.
xIf the battery quickly discharges
because, for example, the lights
were left on too long with the engine
off, slow-charge it as required by
battery size and charger capacity.
xIf the battery gradually discharges
because of high electric load while
the vehicle is being used, recharge it
as required by battery size and
charger capacity.
▼Battery Replacement
Contact an expert repairer (we
recommend an Authorised Mazda
Repairer) for a battery replacement
purchase.
Maintenance and Care
Owner Maintenance
6-38

xVanity mirror lights
Refer to Vanity Mirrors on page
5-32.
xFront overhead lights/front map
lights, rear overhead light, and
luggage compartment light
Refer to Interior Lights on page
5-33.
▼Replacing Exterior Light Bulbs
The exterior lights have either LEDs or
normal bulbs.
Only the bulb for a running lights (type
B) can be replaced.
LED type
xHeadlightsxRunning lights (Type A)xPosition lightsxFront direction indicator lightsxSide direction indicator lightsxHigh-mount brake lightxRear direction indicator lightsxBrake lightsxTail lightsxReverse lightsxRear fog lightsxNumber plate lights
The LED bulb cannot be replaced as a
single unit because it is an integrated
unit.
The LED bulb has to be replaced with
the unit. We recommend an expert
repairer (we recommend an
Authorised Mazda Repairer) if the
replacement is necessary.
Bulb type
Running lights (Type B)
1. Make sure the ignition is switched
off, and the headlight switch is off.
2. If you are changing the left bulb,
start the engine, turn the steering
wheel all the way to the right, and
turn off engine. If you are changing
the right bulb, turn the steering
wheel to the left.
3. Pull the centre of each plastic
retainer and remove the retainers.
1. Removal
2. Installation
4. Pull the centre of each plastic
retainer and remove the retainers.
1. Removal
2. Installation
5. Turn the screw anticlockwise and
remove it, and then partially peel
back the mudguard.
Maintenance and Care
Owner Maintenance
6-45

block located in the engine
compartment.
4. Inspect the fuse and replace it if it is
blown.
1. Normal
2. Blown

5. Insert a new fuse of the same
amperage rating , and make sure it
fits tightly. If it does not
fit tightly,
have an expert install it. Consult an
expert repairer (we recommend an
Authorised Mazda Repairer).
If you have no spare fuses, borrow
one of the same rating from a
circuit not essential to vehicle
operation, such as the audio or
accessory socket circuit.
CAUTION
Always replace a fuse with a
genuine Mazda fuse or equivalent
of the same rating. Otherwise, you
may damage the electric system.
6. Reinstall the cover and make sure
that it is securely installed.
Replacing the fuses under the bonnet
If the headlights or other electrical
components do not work and the fuses
in the cabin are normal, inspect the
fuse block under the bonnet.
If a fuse is blown, it must be replaced.
Follow these steps:

1. Make sure the ignition is switched
off, and other switches are
off.
2. Remove the fuse block cover.
3. If any fuse but the MAIN fuse is
blown, replace it with a new one of
the same amperage rating.
1. Normal
2. Blown

Maintenance and Care
Owner Maintenance
6-47

▼Fuse Panel Description
Fuse block (Engine compartment)
No.FUSE RAT-
INGPROTECTED COMPONENT
F1ŠŠ
F2 20 A
Windscreen wiper de-icer
*
F330 A
Engine control system*
20 A/30 A
Injector*
F4 20 A
S-VT*
F5 40 A Engine control system
F6 20 A
S-VT
*
Maintenance and Care
Owner Maintenance
*Some models.6-49

No.FUSE RAT-
INGPROTECTED COMPONENT
F715 A
Fuel warmer
*
20 A
Fuel pump*
F8 15 A Engine control system
F9 15 A
Transmission control system
*
F10 15 A Engine control system
F11 7.5 A Air conditioner
F12 15 A Engine control system
F13 15 A
NOx sensor
*
F14 20 A
Front seat warmer*
F15 20 A
Headlight washer*
F16 15 A For protection of various circuits
F17ŠŠ
F18 15 A Accessory sockets
F19 60 A Power steering system
F20 15 A Headlight (LH) 1
F21 15 A Headlight (RH) 1
F22 15 A Keyless system
F23 30 A ABS, Dynamic stability control system
F24 15 A Headlight (LH) 2
F25 15 A Headlight (RH) 2
F26 7.5 A On board diagnostics
F27 25 A For protection of various circuits
F28 25 A For protection of various circuits
F29 15 A Windscreen washer
F30ŠŠ
F31 15 A Horn
F32 15 A Headlights
F33ŠŠ
F34ŠŠ
F35 50A ABS, Dynamic stability control system
F36ŠŠ
F37 40 A Rear window defogger
F38 50 A For protection of various circuits
Maintenance and Care
Owner Maintenance
6-50*Some models.