2012 MAZDA MODEL 3 HATCHBACK cooling

Black plate (151,1)
Engine Exhaust (Carbon Monoxide)
WARNING
Do not drive your vehicle if you smell exhaust gas inside the vehicle:Engine exhaust gas is dangerous. This gas contains carbon monoxide (CO), which is
colorless, odorless, and poisonous. When inhaled, it can cause loss of consciousness
and death. If you smell exhaust gas inside your vehicle, keep all windows fully open
and contact an Authorized Mazda Dealer immediately.
Do not run the engine when inside an enclosed area: Running the engine inside an enclosed area, such as a garage, is dangerous. Exhaust
gas, which contains poisonous carbon monoxide, could easily enter the cabin. Loss
of consciousness or even death could occur.
Open the windows or adjust the heating or cooling system to draw fresh air when
idling the engine: Exhaust gas is dangerous. When your vehicle is stopped with the windows closed
and the engine running for a long time even in an open area, exhaust gas, which
contains poisonous carbon monoxide, could enter the cabin. Loss of consciousness or
even death could occur.
Clear snow from underneath and around your vehicle, particularly the tail pipe,
before starting the engine: Running the engine when a vehicle is stopped in deep snow is dangerous. The
exhaust pipe could be blocked by the snow, allowing exhaust gas to enter the cabin.
Because exhaust gas contains poisonous carbon monoxide, it could cause loss of
consciousness or even death to occupants in the cabin.
Before Driving Your Mazda
Fuel and Engine Exhaust Precautions
4-5
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Form No.8BY7-EC-11F

Black plate (245,1)
This dial allows variable fan speeds.
0― Fan off
1 ― Low speed
2 ― Medium low speed
3 ― Medium high speed
4 ― High speed
Mode selector dial
Turn the mode selector dial to select
airflow mode (page 6-4).
NOTE
lThe mode selector dial can be set at the
intermediate positions (
) between each
mode. Set the dial to an intermediate
position if you want to slightly adjust the
airflow amount.
lFor example, when the mode selector dial is
at the
position between theand
positions, airflow from the floor vent is less
than that of the
position.
A/C switchí
Press the A/C switch to turn the air
conditioner on. The indicator light on the
switch will illuminate when the fan
control dial is set at position 1, 2, 3, or 4. Press the switch once again to turn the air
conditioner off.
NOTE
The air conditioner may not function when the
outside temperature approaches 0 °C (32 °F).
Air intake selector
This switch controls the source of air
entering the vehicle.
Press the
switch to alternate
between the outside air and recirculated
air modes.
It is recommended that under normal
conditions the switch be kept in the
outside air mode.
Outside air mode (indicator light
turned off)
Outside air is taken into the vehicle. Use
this mode for normal ventilation and
heating.
Recirculated air mode (indicator light
illuminated)
Outside air is shut off. Air within the
vehicle is recirculated.
This mode can be used when driving on a
dusty road or in similar conditions. It also
helps to provide quicker cooling of the
interior.
Interior Comfort
Climate Control System
6-7íSome models.
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Form No.8BY7-EC-11F

Black plate (246,1)
WARNING
Do not use the recirculated air mode in
cold or rainy weather:Using the recirculated air mode in
cold or rainy weather is dangerous as
it will cause the windows to fog up.
Your vision will be hampered, which
could lead to a serious accident.
qHeating
1. Set the mode selector dial to the
position.
2. Set the temperature control dial to the hot position.
3. Set the fan control dial to the desired speed.
NOTE
lIf the windshield fogs up easily, set the
mode selector dial to the
position.lIf cooler air is desired at face level, set the
mode selector dial at the
position and
adjust the temperature control dial to
maintain maximum comfort.
lThe air to the floor is warmer than air to
the face (except when the temperature
control dial is set at the extreme hot or cold
position).
lIn theorposition, the air
conditioner is automatically turned on
(however, the indicator light does not
illuminate) and the outside air mode is
automatically selected to defrost the
windshield.
In the
orposition, the outside air
mode cannot be changed to the recirculated
air mode.
q Cooling (With Air Conditioner)í
1. Set the mode selector dial to the
position.
2. Set the temperature control dial to the cold position.
3. Set the fan control dial to the desired speed.
4. Turn on the air conditioner by pressing the A/C switch.
5. Adjust the fan control dial and temperature control dial to maintain
maximum comfort.
CAUTION
If the air conditioner is used while
driving up long hills or in heavy
traffic, monitor the engine coolant
temperature warning light to see if it
is illuminated or flashing (page 5-52).
The air conditioner may cause engine
overheating. If the warning light is
illuminated or flashing, turn the air
conditioning off (page 7-16).
NOTE
lWhen maximum cooling is desired, set the
temperature control dial to the extreme cold
position and set the air intake selector to
the recirculated air mode, then set the fan
control dial to position 4.
lIf warmer air is desired at floor level, set
the mode selector dial at the
position
and adjust the temperature control dial to
maintain maximum comfort.
lThe air to the floor is warmer than air to
the face (except when the temperature
control dial is set at the extreme hot or cold
position).
6-8
Interior Comfort
íSome models.
Climate Control System
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Form No.8BY7-EC-11F

Black plate (250,1)
Mode selector switch
The desired airflow mode can be selected
(page 6-4).
NOTE
lWith the airflow mode set to the
position and the temperature control dial
set at a medium temperature, heated air is
directed to the feet and a comparably lower
air temperature will flow through the
central, left and right vents.
lTo set the air vent to, press the
windshield defroster switch.
lIn theorposition, the air
conditioner is automatically turned on and
the outside air mode is automatically
selected to defrost the windshield. In the
orposition, the outside air mode
cannot be changed to the recirculated air
mode.
A/C switch
Pressing the A/C switch while the AUTO
switch is turned on will turn off the air
conditioning (cooling/dehumidifying
functions). The air conditioning can be
turned on and off by pressing the A/C
switch while the fan control dial is on.
NOTE
lThe air conditioning operates when the A/C
switch is pressed even if the fan is off.
lThe air conditioner may not function when
the outside temperature approaches 0 °C
(32 °F). (Indicator light remains on even
when system is off.)
Air intake selector
Outside or recirculated air positions can
be selected. Press the switch to select
outside/recirculated air positions.
Recirculated air position (indicator
light illuminated)
Use this position when going through
tunnels, driving in congested traffic (high
engine exhaust areas) or when quick
cooling is desired.
Outside air position (indicator light
turned off)
Use this position for normal conditions
and defogging.
6-12
Interior Comfort
Climate Control System
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Form No.8BY7-EC-11F

Black plate (370,1)
Overheating
If the High engine coolant temperature
warning light illuminates, the vehicle
loses power, or you hear a loud knocking
or pinging noise, the engine is probably
too hot.
WARNING
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 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 the 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 hood 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 High engine coolant temperature
warning light illuminates:
1. Drive safely to the side of the road and park off the right-of-way. 2. Put a vehicle with an automatic
transaxle in park (P), a manual
transaxle in neutral.
3. Apply the parking brake.
4. Turn off the air conditioner.
5. Check whether coolant or steam is escaping from under the hood or 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 hood and start the engine.
If neither coolant nor steam is
escaping:
Open the hood 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
Authorized Mazda Dealer.
6. Make sure the cooling fan is operating, then turn off the engine after the
temperature has decreased.
7. When cool, check the coolant reservoir level.
If it's low, look for coolant leaks from
the radiator and hoses.
7-16
In Case of an Emergency
Overheating
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Form No.8BY7-EC-11F

Black plate (371,1)
If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
8-22).
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
Authorized Mazda Dealer.
In Case of an Emergency
Overheating
7-17
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Form No.8BY7-EC-11F

Black plate (374,1)
Keep all flames, including cigarettes, and sparks away from open battery cells:
Flames and sparks near open battery cells are dangerous. Hydrogen gas, produced
during normal battery operation, could ignite and cause the battery to explode. An
exploding battery can cause serious burns and injuries.
Do not jump-start a frozen battery or one with a low fluid level: Jump-starting a frozen battery or one with a low fluid level is dangerous. It may
rupture or explode, causing serious injury.
Connect the negative cable to a good ground point away from the battery: Connecting the end of the second jumper cable to the negative (
) terminal of the
discharged battery is dangerous.
A spark could cause the gas around the battery to explode and injure someone.
Route the jumper cables away from parts that will be moving: Connecting a jumper cable near or to moving parts (cooling fans, belts) is dangerous.
The cable 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).
SKYACTIV-G 2.0
Connect cables in numerical order and disconnect in reverse order.
Booster battery
Discharged battery
Jumper cables
7-20
In Case of an Emergency
Emergency Starting
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Form No.8BY7-EC-11F

Black plate (386,1)
qSchedule 1
Maintenance Interval Number of months or kilometers (miles), whichever comes first
Months 6 12 18 24 30 36 42 48
×1000 km 12 24 36 48 60 72 84 96
×1000 miles 7.5 15 22.5 30 37.5 45 52.5 60
ENGINE
Engine valve clearance
(Except SKYACTIV-G 2.0) Audibly inspect every 120,000 km (75,000 miles), if noisy,
adjust
Drive belts I
Engine oil RRRRRRRR
Engine oil filter RRRRRRRR
COOLING SYSTEM
Engine coolant FL22 type
*1Replace at first 192,000 km (120,000 miles) or 10 years; after
that, every 96,000 km (60,000 miles) or 5 years
Others Replace at first 96,000 km (60,000 miles) or 4 years; after that,
every 2 years
FUEL SYSTEM
Air filter R
Fuel lines and hoses
*2II
Hoses and tubes for emission*2I
IGNITION SYSTEM
Spark plugs Replace every 120,000 km (75,000 miles)
CHASSIS and BODY
Brake lines, hoses and connections I I
Disc brakes IIII
Tire (Rotation) Rotate every 12,000 km (7,500 miles)
Steering operation and linkages I I
Front and rear suspension, ball joints and wheel
bearing axial play II
Driveshaft dust boots I I
Bolts and nuts on chassis and body T T
Exhaust system and heat shields Inspect every 72,000 km (45,000 miles) or 5 years
All locks and hinges LLLLLLLL
8-4
Maintenance and Care
Scheduled Maintenance
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Form No.8BY7-EC-11F