engine MAZDA MODEL 3 4-DOOR 2015 Manual Online

6–23
Maintenance and Care
Owner Maintenance
WARNING
Do not perform maintenance work if you lack suffi cient knowledge and experience
or the proper tools and equipment to do the work. Have maintenance work done by a
qualifi ed technician:
Performing maintenance work on a vehicle is dangerous if not done properly. You can be
seriously injured while performing some maintenance procedures.

If you must run the engine while working under the hood, make certain that you
remove all jewelry (especially rings, bracelets, watches, and necklaces) and all
neckties, scarves, and similar loose clothing before getting near the engine or cooling
fan which may turn on unexpectedly: Working under the hood with the engine running is dangerous. It becomes even more
dangerous when you wear jewelry or loose clothing.
Either can become entangled in moving parts and result in injury.

Switch the ignition to 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 indefi nitely 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 leave items in the engine compartment: After you have fi nished checking or doing servicing in the engine compartment, do not
forget and leave items such as tools or rags in the engine compartment.
Tools or other items left in the engine compartment could cause engine damage or a fi re
leading to an unexpected accident.
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6–26
Maintenance and Care
Owner Maintenance
Engine Compartment Overview
Windshield washer fluid reservoirBrake/Clutch fluid reservoir
Engine oil dipstick Battery
Fuse block
Cooling system cap Engine coolant reservoir Engine oil-filler cap
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6–27
Maintenance and Care
Owner Maintenance
Engine Oil
NOTE
Changing the engine oil should be
performed by an Authorized Mazda
Dealer.
Refer to Introduction (page 6-2 ) for
owner's responsibility in protecting your
investment.
Recommended Oil
U.S.A., Canada, and Puerto Rico
Use SAE 0W-20 engine oil.
Mazda Genuine Oil is used in your
Mazda vehicle. Mazda Genuine 0W-20
Oil is required to achieve optimum fuel
economy.
For maintenance service, Mazda
recommends Mazda Genuine Parts and
Castrol
® (U.S.A. only).
(ILSAC)
Only use SAE 0W-20 oil “Certifi ed For
Gasoline Engines” by the American
Petroleum Institute (API).
Oil with this trademark symbol conforms
to the current engine and emission system
protection standards and fuel economy
requirements of the International Lubricant
Standardization and Approval Committee
(ILSAC), comprised of U.S. and Japanese
automobile manufacturers.
80
60
40
20
0
–40 –20
30
100
40
20
10
0
–10
–20
–30
–40
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6–28
Maintenance and Care
Owner Maintenance
Except U.S.A., Canada, and Puerto Rico
Use SAE 5W-30 engine oil.
Oil container labels provide important
information.
A chief contribution this type of oil makes
to fuel economy is reducing the amount of
fuel necessary to overcome engine friction.
For maintenance service, Mazda
recommends Mazda Genuine Parts and
Castrol
® (Mexico only).
(ILSAC)
(Mexico)
Use 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.
80
60
40
20
0
–40 –20
30
100
40
20
10
0
–10
–20
–30
–40
Inspecting Engine Oil Level
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 oil pan.
4. Pull out the dipstick, wipe it clean, and reinsert it fully.
Full
OK
Low
5. Pull it out again and examine the level.
The level is normal if it is between Low and Full.
If it is near or below Low, add enough oil to bring the level to Full.
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6–29
Maintenance and Care
Owner Maintenance
CAUTION
Do not add engine oil over Full. 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
WARNING
Do not use a match or live fl ame 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.

Switch the ignition to 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 indefi nitely 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.
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6–30
Maintenance and Care
Owner Maintenance
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 F and L marks
on the coolant reservoir when the engine
is cool.
If it is at or near L, add enough coolant to
the coolant reservoir to provide freezing
and corrosion protection and to bring the
level to F.
Securely tighten the coolant reservoir tank
cap after adding coolant.
CAUTION


6–32
Maintenance and Care
Owner Maintenance
Inspect fl uid level in the washer fl uid
reservoir; add fl uid if necessary.
L
Use plain water if washer fl uid is
unavailable.
But use only washer fl uid in cold weather
to prevent it from freezing.
NOTE
Front and rear washer fl uid is supplied
from the same reservoir.
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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6–40
Maintenance and Care
Owner Maintenance
The following conditions indicate that the
battery power is low:
 y The KEY indicator light (green) fl ashes
in the instrument cluster for about 30
seconds after the engine is turned off.
 y  The system does not operate and
the operation indicator light on the
transmitter does not fl ash when the
buttons are pressed.
 y  The system's operational range is
reduced.
Replacing the battery at an Authorized
Mazda Dealer is recommended to prevent
damage to the key. If replacing the battery
by yourself, follow the instruction below.
Replacing the key battery
1. Pull out the auxiliary key.
2. Insert a small, fl athead screwdriver
into the groove shown in the fi gure and
rotate the screwdriver to open the cover
slightly.
3. Insert the small, fl athead screwdriver
into the gap between the cover and
the transmitter, and then rotate the
screwdriver to detach the cover.
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6–47
Maintenance and Care
Owner Maintenance
WARNING
Do not replace the xenon fusion bulbs
yourself: Replacing the xenon fusion bulbs
yourself is dangerous. Because the
xenon fusion bulbs require high
voltage, you could receive an electric
shock if the bulbs are handled
incorrectly. Consult an Authorized
Mazda Dealer when the replacement is
necessary.

Never touch the glass portion of a
halogen bulb with your bare hands
and always wear eye protection when
handling or working around the bulbs: When a halogen bulb breaks, it is
dangerous. These bulbs contain
pressurized gas. If one is broken, it will
explode and serious injuries could be
caused by the fl ying glass.
If the glass portion is touched with
bare hands, body oil could cause the
bulb to overheat and explode when lit.

Always keep halogen bulbs out of the
reach of children: Playing with a halogen bulb is
dangerous. Serious injuries could be
caused by dropping a halogen bulb or
breaking it some other way.
NOTE
 y To replace the bulb, contact an
Authorized Mazda Dealer.
 y If the halogen bulb is accidentally
touched, it should be cleaned with
rubbing alcohol before being used.
 y Use the protective cover and carton for
the replacement bulb to dispose of the
old bulb promptly and out of the reach
of children.
Replacing Exterior Light Bulbs
Headlights (With xenon fusion
headlights)
Low/High beam bulbs
You cannot replace the low/high beam
bulbs by yourself. The bulbs must be
replaced at an Authorized Mazda Dealer.
Headlights (With halogen headlights)
Low-beam bulbs
1. If you are changing the right bulb, start the engine, turn the steering wheel all
the way to the left, and turn off engine.
If you are changing the left bulb, turn
the steering wheel to the right, and turn
off engine.
2. Make sure the headlight switch is off.
3. Pull the center of each plastic retainer and remove the retainers.
Removal
Installation
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6–49
Maintenance and Care
Owner Maintenance
4. Turn the socket and bulb assembly to remove it. Carefully remove the
bulb from its socket in the refl ector by
gently pulling it straight backward out
of the socket.
5. Install the new bulb in the reverse order of the removal procedure.
Daytime running lights/Parking lights
(With xenon fusion headlights)
Due to the complexity and diffi culty of
the procedure, the LED bulbs must be
replaced by an Authorized Mazda Dealer.
NOTE
LED bulb replacement is not possible
because it is built into the unit. Replace
the unit.
Front turn signal lights, Parking lights/
Front side-marker lights (With halogen
headlights), Front side-marker lights
(With xenon fusion headlights)
1. If you are changing the right bulb, start the engine, turn the steering wheel all
the way to the left, and turn off engine.
If you are changing the left bulb, turn
the steering wheel to the right, and turn
off engine.
2. Make sure the headlight switch is off. 3. Pull the center of each plastic retainer
and remove the retainers.
Removal
Installation
4. Turn the screw counterclockwise and remove it, and then partially peel back
the mudguard.
5. Turn the socket and bulb assembly counterclockwise and remove it.
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