2004 MAZDA MODEL 3 HATCHBACK cooling

8-4
Maintenance and Care
Scheduled Maintenance
Form No. 8S18-EA-03I

Schedule 1
I
: Inspect and repair, clean, adjust, or replace if necessary.
R
: Replace
L
: Lubricate
ENGINE
COOLING SYSTEM
FUEL SYSTEM
IGNITION SYSTEM
CHASSIS and BODY
*1:According to state / provincial and federal regulations, failure to perform maintenance on these items will not
void your emissions warranties. However, Mazda recommends that all maintenance services be performed at
the recommended time or mileage / kilometer period to ensure long-term reliability.
Maintenance Interval
(Number of months or
kilometers (miles), whichever
comes first)Months 6 12182430364248
×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 valve clearanceA u d i b l e i n s p e c t e v e r y 1 2 0 , 0 0 0 k m ( 7 5 , 0 0 0 m i l e s ) ,
if noisy, adjust
Drive belts (tension)I
Engine oilRRRRRRRR
Engine oil filterRRRRRRRR
Cooling systemII
Engine coolantReplace at first 96,000 km (60,000 miles) or 4 years ;
after that, every 2 years
Air filterR
Fuel lines and hoses
*1II
Hoses and tubes for emission*1I
Spark plugsReplace every 120,000km (75,000miles)
Brake lines, hoses and connectionsII
Disc brakesIIII
Tire (Rotation)Rotate every 12,000km (7,500miles)
Steering operation and linkagesII
Front and rear suspension and ball jointsII
Driveshaft dust bootsII
Exhaust system and heat shieldsInspect every 72,000km (45,000miles) or 60 months
All locks and hingesLLLLLLLL
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8-5
Maintenance and Care
Scheduled Maintenance
Form No. 8S18-EA-03I

Schedule 2
I
: Inspect and repair, clean, adjust, or replace if necessary.
R
: Replace
L
:Lubricate
ENGINE
COOLING SYSTEM
FUEL SYSTEM
IGNITION SYSTEM
ELECTRICAL SYSTEM
*1:According to state / provincial and federal regulations, failure to perform maintenance on these items will not
void your emissions warranties. However, Mazda recommends that all maintenance services be performed at
the recommended time or mileage / kilometer period to ensure long-term reliability.
Maintenance Interval
(Number of months or
kilometers (miles),
whichever comes first)Months 4 8 12 16 20 24 28 32 36 40 44 48
×1000 km 8 1624324048566472808896
×1000 miles 5 10 15 20 25 30 35 40 45 50 55 60
Engine valve clearanceAudible inspect every 120,000km (75,000miles), if noisy, adjust
Drive belts (tension) I
Engine oilPuerto RicoReplace every 5,000 km (3,000 miles) or 3 months
OthersRRRRRRRRRRRR
Engine oil filterRRRRRRRRRRRR
Cooling systemII
Engine coolantR e p l a c e a t f i r s t 9 6 , 0 0 0 k m ( 6 0 , 0 0 0 m i l e s ) o r 4 y e a r s ;
after that, every 2 years
Engine coolant levelIIIIIIIIIIII
Air filterPuerto RicoRR
OthersR
Fuel lines and hoses
*1II
Hoses and tubes for emission
*1I
Spark plugsReplace every 120,000km (75,000miles)
Function of all lightsIIIIIIIIIIII
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8-8
Maintenance and Care
Scheduled Maintenance
Form No. 8S18-EA-03I
I
: Inspect: Inspect and clean, repair, adjust, or replace if necessary.
R
: Replace
C
: Clean
*1:Also inspect and adjust the power steering and air conditioner drive belts, if installed.
*2: If the vehicle is operated under any of the following conditions, change the engine oil and oil filter more often
than recommended intervals.
a) Driving in dusty conditions
b) Extended periods of idling or low speed operation.
c) Driving for long period in cold temperatures or driving regularly at short distance only.
*3:If the vehicle is operated in very dusty or sandy areas, clean and if necessary, replace the air filter more often
than the recommended intervals.
*4:If the brakes are used extensively (for example, continuous hard driving or mountain driving) or if the vehicle
is operated in extremely humid climates, change the brake fluid annually.
Maintenance
Interval
(Number of
months or
kilometers
(miles), whichever
comes first)Months 6 121824303642485460667278849096
×1000 km 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160
×1000 miles6.25 12.518.752531.2537.543.755056.2562.568.757581.2587.593.75100
Engine valve clearanceAudible inspect every 120,000km (75,000miles), if noisy, adjust
Drive belts
*1IIIIIIIIIIIIIIII
Engine oil*2RRRRRRRRRRRRRRRR
Engine oil filter*2RRRRRRRRRRRRRRRR
Cooling systemIIIIIIII
Engine coolantReplace every 2 years
Air filter
*3CCRCCRCC
Spark plugsReplace every 120,000km (75,000miles)
Fuel filterRRRR
Fuel lines and hosesIIIIIIII
Evaporative system
(if installed)IIIIIIII
Battery electrolyte level and
specific gravityIIIIIIII
Brake lines, hoses and
connectionsIIIIIIII
Brake fluid
*4IIIRIIIRIIIRIIIR
Parking brakeIIIIIIIIIIIIIIII
Power brake unit
(Brake booster) and hosesIIIIIIII
Disc brakesIIIIIIIIIIIIIIII
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8-11
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
Improper or incomplete service may result in problems. This section gives instructions
only for items that are easy to perform.
As explained in the Introduction (page 8-2), several procedures can be done only by a
qualified service technician with special tools.
Improper owner maintenance during the warranty period may affect warranty coverage.
For details, read the separate Mazda Warranty statement provided with the vehicle. If
you’re unsure about any servicing or maintenance procedure, have it done by an
Authorized Mazda Dealer.
There are strict environmental laws regarding the disposal of waste oil and fluids. Please
dispose of your waste properly and with due regard to the environment.
We recommend that you entrust the oil and fluid changes of your vehicle to an Authorized
Mazda Dealer.
Owner Maintenance Precautions
Maintenance Procedures:
Performing maintenance work on a vehicle is dangerous if not done properly. You can
be seriously injured while performing some maintenance procedures. If you lack
sufficient knowledge and experience or the proper tools and equipment to do the
work, have it done by a qualified technician.
Running the Engine:
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.
Therefore, 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.
Electrical Fan and Engine Inspection:
Inspecting the engine with the ignition switch in the ON position is dangerous. The
cooling fan could come on unexpectedly even when the engine isn’t running. You
could be seriously injured by the fan. Turn the ignition switch off and remove the key
from the ignition switch when you inspect the engine.
WARNING
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8-15
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
Changing oil filter
Because you need a special tool to
retighten the filter, an Authorized Mazda
Dealer should do the work.

Inspecting Coolant Level
NOTE
•The indicated engine oil capacities
are for general reference purposes
only. When adding or changing oil,
verify the engine oil level with the
oil dipstick.
•Use only specified engine oil (page
10-4).
Engine Coolant
Hot Engine:
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.
Do not use a match or live flame in
the engine compartment. DO NOT
ADD COOLANT WHEN THE
ENGINE IS HOT.
Cooling Fan and Engine
Inspection:
Inspecting the engine with the
ignition switch in the ON position is
dangerous. The cooling fan could
turn on unexpectedly even when the
engine isn’t running. You could be
seriously injured by the fan. Turn the
ignition switch off and remove the key
from the ignition switch when you
inspect the engine.
Cooling System Cap:
When the engine and radiator are
hot, scalding coolant and steam may
shoot out under pressure and cause
serious injury. Don’t remove the
cooling system cap when the engine
and radiator are hot.
WARNING
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8-16
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
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 MAX and MIN
marks on the coolant reservoir when the
engine is cool.
If it’s at or near MIN, add enough coolant
to the coolant reservoir to provide
freezing and corrosion protection and to
bring the level to MAX.
Do not overfill.

If new coolant is required frequently,
consult an Authorized Mazda Dealer.
Changing Coolant
Change coolant according to Scheduled
Maintenance (page 8-3).
For mixture percentage:
Radiator coolant will damage paint.
Rinse it off quickly if spilled.
CAUTION
•Use only soft (demineralized) water
in the coolant mixture. Water that
contains minerals will cut down on
the coolant’s effectiveness.
•Don’t add only water. Always add a
proper coolant mixture.
•The engine has aluminum parts and
must be protected by an ethylene-
glycol-based coolant to prevent
corrosion and freezing.
•DO NOT USE alcohol or methanol
antifreeze. DO NOT MIX alcohol
or methanol with the coolant. This
could damage the cooling system.
•Don’t use a solution that contains
more than 60 % antifreeze.
This would reduce effectiveness.
ProtectionVo l u m e
Antifreeze
solutionDemineralized
water
Above -16°
C (3°
F) 35% 65%
Above -26°
C (-15°
F) 45% 55%
Above -40°
C (-40°
F) 55% 45%
CAUTION
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8-17
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
To change coolant1. Remove the cooling system cap.
2. Only when the engine is cool, remove
the radiator drain plug and drain the
coolant into a suitable container.
Properly dispose of the used coolant.
3. Flush out the system with running
water.
4. Drain the system completely. Insert
and tighten the plug. Add as much
ethylene-glycol-based coolant mixture
and water as necessary to provide
freezing and corrosion protection.
5. In extremely cold climates, add the
mixture percentage recommended in
the coolant mixture percentage table.
6. Run the engine at idle with the cooling
system cap off. Slowly add additional
coolant if necessary.
7. At this point, wait until the engine
reaches normal operating temperature;
then depress the accelerator two or
three times. Add more coolant, if
necessary, until the system is full.
8. Install the cooling system cap. Inspect
all connections for leaks. Inspect the
level in the coolant reservoir one more
time.
Removing the Cooling System Cap:
Removing the cooling system cap
while the engine is running or hot is
dangerous. This might lead to cooling
system and engine damage and could
result in serious injury from escaping
hot coolant or steam. Turn off the
engine and wait until it’s cool. Even
then, be very careful when removing
the cap.
Wrap a thick cloth around the cap
and slowly turn it counterclockwise
about two and a half rotations.
Step back while the pressure escapes.
When you’re sure all the pressure has
escaped, turn the cap
counterclockwise — still using a cloth
— and remove the cap.
WARNINGLoosen
Loosen Tighten
Tighten
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8-48
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I

Fuse Panel Description
Fuse block (Engine compartment)
12 3 45 6
789 10
11 12
13 14
15 16
17 18
1920 2122 23
24 25 26
27 2829
3031 3233 3435 36
DESCRIPTIONFUSE
RATINGPROTECTED
COMPONENT
1 FAN 40A Cooling fan
2 P/ST 80A EHPAS
3BTN 40AFor protection of
various circuits
4HEAD 40AHeadlights
5PTC 80A—
6GLOW 60A—
7ABS 1 30A
ABS
*
8ABS 2 20A
ABS*
9 ENGINE 30AFor protection of
various circuits
10—— —
11 IG KEY 1 30A Ignition switch
12 STARTER 20A Starter clutch
13 IG KEY 2 30A Ignition switch
14—— —
15 HEATER 40A Blower motor
16—— —
17 DEFOG 40ARear window
defroster
DESCRIPTIONFUSE
RATINGPROTECTED
COMPONENT
18—— —
19 ABS IG 10A
ABS
*
20 FOG 15A
Fog lights*
21 HORN 15A Horn
22—— —
23 H/CLEAN 20A—
24 F/PUMP 15A Fuel pump
25 P/ST IG 10A Power steering
26 A/C MAG 10A Air conditioner
27 ALT 10A—
28—— —
29—— —
30 ENG +B 10A PCM
31 ROOM 15A Interior lights
32
ENG BAR 410AO2 heater
33
ENG BAR 310AO2 heater
34 EGI INJ 10A Injector
35
ENG BAR 110A Air flow sensor
36ENG BAR 210A EGR control valve
*Some models.
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