2003 MAZDA MODEL MX-5 MIATA cooling

8-5
Maintenance and Care
Scheduled Maintenance
Form No. 8R09-EA-02G

Schedule 2
I:
Inspect and repair, clean, adjust, or replace if necessary.
R: Replace
C: Clean
ENGINE
COOLING SYSTEM
FUEL SYSTEM
IGNITION SYSTEM
ELECTRICAL SYSTEM
*According to state 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 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 clearance I
Engine timing belt Replace every 96,000km (60,000miles)
Drive belts (tension) II
Engine oil Puerto Rico
Replace every 5,000km (3,000miles) or 3 months
others RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Cooling system II
Engine coolant Replace at first 72,000km (45,000miles) or 36 months ;
after that, every 48,000km (30,000miles) or 24 months
Engine coolant level IIIIIIIIIIII
Idle speed II
Air filter CCRC
Fuel lines and hoses
*II
Hoses and tubes for emission*I
Spark plugs RR
Function of all lights IIIIIIIIIIII
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8-8
Maintenance and Care
Scheduled Maintenance
Form No. 8R09-EA-02G
I:Inspect: Inspect and clean, repair, adjust, or replace if necessary.
R: Replace
C: Clean
ENGINE
COOLING SYSTEM
FUEL SYSTEM
IGNITION SYSTEM
EMISSION CONTROL SYSTEM
*1Also inspect and adjust the power steering and air conditioner drive belts, if installed.*2Replacement of the timing belt is required at every 100,000 km {60,000 miles}. Failure to replace the timing
belt may result in damage to the engine.
*3If 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.
*4If the vehicle is operated in very dusty or sandy areas, inspect and if necessary, clean or replace the air filter
more often than the recommended intervals.
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 miles 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96
Engine valve clearance Inspect every 100,000 km (60,000 miles) or 60 months
Drive belts
*1IIIIIIIIIIIIIIII
Engine timing belt*2Replace every 100,000 km (60,000 miles)
Engine oil*3RRRRRRRRRRRRRRRR
Engine oil filter*3RRRRRRRRRRRRRRRR
Cooling system IIIIIIII
Engine coolant Replace every 2 years
Idle speed IIIIIIII
Air filter
*4
except
Australian
model CCRCCRCC
Australian
model CRCRC
Fuel filter except
Australian
model
RRRR
Australian
model RRR
Fuel lines and hoses IIIIIIII
Spark plugs RRRRR
Evaporative system IIIIIIII
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8-11
Maintenance and Care
Owner Maintenance
Form No. 8R09-EA-02G
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 procedure 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 procedure. 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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8-12
Maintenance and Care
Owner Maintenance
Form No. 8R09-EA-02G
Engine Compartment Overview
Fuse blockEngine oil-filler cap Cooling system cap Power steering fluid filler cap/dipstick Air filterClutch fluid reservoir
(Only for manual
transmission model)
Automatic transmission fluid-level dipstick
(Only for automatic transmission model)
Engine oil dipstickBrake fluid reservoir
Washer fluid reservoir
(TypeA)
The battery is in the trunk
Engine coolant
reservoirWasher fluid reservoir (TypeB)
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8-15
Maintenance and Care
Owner Maintenance
Form No. 8R09-EA-02G
Check the oil level and fill to the F mark if
necessary.
Oil capacity (General reference only,
refer to Specifications section for
capacities.)
Changing oil filter
Because you need a special tool to
retighten the filter, an Authorized Mazda
Dealer should do the work.

Inspecting Coolant Level
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.
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. Don
’t
inspect the coolant system or add
coolant when the engine is hot.
WARNING
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8-16
Maintenance and Care
Owner Maintenance
Form No. 8R09-EA-02G
If it’s at or near LOW, add enough coolant
to the coolant reservoir to provide
freezing and corrosion protection and to
bring the level to FULL.
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:
To change coolant
Radiator coolant will damage paint.
Rinse it off quickly.
•
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.
CAUTION
CAUTION
Protection Vo l u m e
Antifreeze solution Wa t e r
Above −
16° C (3° F) 35% 65%
Above −
26° C (−
15° F) 45% 55%
Above −
40° C (−
40° F) 55% 45%
Removing the Cooling System Cap:
Removing the cooling system cap or
drain plug 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
or drain plug. Wrap a thick cloth
around it and slowly turn it
counterclockwise to the first stop.
Step back while the pressure escapes.
When you ’re sure all the pressure is
gone, press down on the cap — still
using a cloth — turn the cap, and
remove it.
WARNING
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8-17
Maintenance and Care
Owner Maintenance
Form No. 8R09-EA-02G
1. 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 and
water as necessary to provide freezing
and corrosion protection.
5. In extremely cold climates, add the amount recommended in the coolant
manufacturer ’s instructions.
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.

Inspecting Brake Fluid Level
Inspect the fluid level in the reservoir
regularly. It should be kept at MAX.
The level normally drops with
accumulated distance, a condition
associated with wear of brake linings. If it
is excessively low, have the brake system
inspected by an Authorized Mazda
Dealer.
Tighten
Loosen
Tighten Loosen
Brake Fluid
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8-39
Maintenance and Care
Owner Maintenance
Form No. 8R09-EA-02G

Fuse Panel Description
Fuse block (Engine compartment)
DESCRIPTION FUSE RATING
PROTECTED COMPONENT
1 HEAD 40A Headlights, Rear defroster, Auto antenna
2 FUEL INJ 30A Fuel injection
3 MAIN 100A For protection of all circuits
4 IG KEY 60A All ignition related circuits
5 BLOWER 30A Blower motor
6 FAN 30A Cooling fan, Additional fan (air conditioner)
7 BTN 1 30A Taillights, Dashboard illumination
8 BTN 2 20A Audio amp, Turn signal lights
9 ABS 20A Antilock brake system
10 STOP 15A Brake lights, Horn, Shift lock
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