2020 MAZDA MODEL 3 HATCHBACK maintenance

For maintenance service, Mazda
recommends Mazda Genuine Parts and
Castrol
® (Mexico only).


(Mexico)
Use API SM or higher, or ILSAC GF-IV
or higher/SAE 5W-30 engine oil. If SAE
5W-30 engine oil is not available, use SAE
5W-20 engine oil.

The quality designation SM, or ILSAC
must be on the label.

▼ Inspecting Engine Oil Level
NOTE
If the engine oil level warning
indication/warning light turns on, add 1
L (0.3 US gal, 0.2 Imp gal) of engine oil.
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 retur n to the oil pan.
4. Pull out the dipstic k, wipe it clean, and
reinsert it fully.

1. MAX
2. OK
3. MIN

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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.
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.
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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 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
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 reserv oir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
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Brake/Clutch Fluid
▼Inspecting Brake/Clutch Fluid Level
WA R N I N G
If the brake/clutch fluid level is low, have
the brakes inspected:
A low brake/clutch
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.
The brakes and clutch draw fluid from the
same reservoir.
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 and clutch
linings. If it is excessively low, have the
brake/clutch system inspected by an
Authorized Mazda Dealer.
Wa s h e r F l u i d
▼ Inspecting Washer Fluid Level
WA R N I N G
Use only windshield washer fluid or plain
water in the reservoir:
Using radiator antifreeze as washer
fluid is
dangerous. If sprayed on the windshield, it
will dirty the windshield, affect your
visibility, and could result in an accident.
Using Washer Fluid Without Anti-freeze
Protection in Cold Weather:
Operating your vehicle in temperatures
below 4 °C (40 °F) using washer fluid
without anti-freeze prot ection is dangerous
as it could cause impaired windshield
vision and result in an accident. In cold
weather, always use washer fluid with
anti-freeze protection.
NOTE
State or local regulations may restrict the
use of volatile organic compounds
(VOCs), which are commonly used as
anti-freeze agents in washer fluid. A
washer fluid with limited VOC content
should be used only if it provides adequate
freeze resistance for all regions and
climates in which the vehicle will be
operated.
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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 hood 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 hood's secondary latch
keeps the hood from opening when the
primary latch is released.
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Wiper Blades
▼Wiper Blades
CAUTION

Hot waxes applied by automatic car
washers have been known to affect the
wiper's ability to clean windows.
 To prevent damage to the wiper blades,
do not use gasoline, kerosene, paint
thinner, or other solvents on or near
them.
 When the wiper lever is in the AUTO
position and the ignition is switched ON,
the wipers may move automatically in
the following cases:
 If the windshield above the rain sensor
is touched.
 If the windshield above the rain sensor
is wiped with a cloth.
 If the windshield is struck with a hand
or other object.
 If the rain sensor is struck with a hand
or other object from inside the vehicle.
Be careful not to pinch hands or fingers
as it may cause injury, or damage the
wipers. When washing or servicing the
vehicle, make sure the wiper lever is in
the OFF position.
 Before lifting the windshield wiper blades
off the windshield, always follow the
procedure for moving the windshield
wiper blades. Otherw ise, a wiper blade,
wiper arm, or the hood could be
damaged.
Refer to the Replacin g Windshield Wiper
Blades (page on 6-22) section for the
procedure on how to move the
windshield wiper blades to the service
position.
Contamination of either the windshield or
the blades with foreign matter can reduce
wiper effectiveness. Common sources are
insects, tree sap, and hot wax treatments
used by some commercial car washes.

If the blades are not wiping properly, clean
the window and blades with a good
cleaner or mild detergent; then rinse
thoroughly with clean water. Repeat if
necessary.
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▼Replacing Windshield Wiper Blades
When the wipers no longer clean well, the
blades are probably worn or cracked.
Replace them.
CAUTION

To prevent damaging a windshield wiper
blade, wiper arm, or the hood, perform
the following procedure.
 Before lifting the windshield wiper
blades
off the windshield, always
move them to the service position.
 When putting the windshield wiper
blades back on the windshield, make
sure that they are in the service
position before switching the ignition
ON and operating the windshield
wipers.
 Replace with Mazda genuine wiper
blades. If they are replaced with wiper
blades other than a Mazda genuine
product, they may not wipe with the
same
efficiency as the genuine product.
 To prevent damage to the wiper arms
and other components, do not try to
sweep the wiper arm by hand.
 Do not bend the blade rubber
unnecessarily when replacing it.
Otherwise, the metal
stiffener in the
blade may deform and the windshield
wiper operation may be adversely affected.
 Do not hold a wiper blade by its end
when raising the wiper arm. Otherwise,
the part may deform and the wiping
performance may lower.
NOTE
You can replace the wiper blades
yourself, however you cannot replace
the wiper arms.
If you want to replace the wiper arms,
consult an Authorized Mazda Dealer.
Forcefully loweri ng the wiper arms
could damage the wiper arm and blade,
and may scratch or crack the
windshield.
Replace the wiper blades using the
following procedure.
1. Move the wipers to the service positions using the following
procedure.
a) Switch the ignition ON.
b) Switch the ignition OFF.
c) Press up the wiper switch to theMIST position 2 times within 30
seconds after switching the ignition
OFF.
When the procedure is completed,
the wipers operate and they stop at
the service positions.
2. Raise the wiper arms.
CAUTION
To prevent damage to the windshield
let the wiper arm down easily, do not
let it slap down on the windshield.
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3. Slide the blade component in thedirection of the arrow while pressing
the wiper arm tab to remove the blade
component from the wiper arm.

4. Pull the blade rubber in the direction ofthe arrow and slide it to a position
where the blade holder groove can be
checked.

5. Pull the end of the blade rubber from
the blade holder groove in the direction
of the arrow and remove the blade
rubber from the blade holder.

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