cooling MAZDA MODEL SPEED MX-5 MIATA 2005 User Guide

Black plate (230,1)
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)
Engine coolant
reservoir Washer fluid reservoir (TypeB)
The battery is in the trunk
8-14
Maintenance and Care
Owner Maintenance
MX-5 Miata_8T72-EA-04G_Edition2 Page230
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Form No.8T72-EA-04G

Black plate (234,1)
Engine Coolant
qInspecting Coolant Level
WARNING
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. 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'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.
CAUTION
Radiator coolant will damage paint.
Rinse it off quickly if spilled.
If the coolant reservoir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
8-18
Maintenance and Care
Owner Maintenance
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Form No.8T72-EA-04G

Black plate (235,1)
qChanging Coolant
Change coolant according to Scheduled
Maintenance (page 8-3).
CAUTION
lUse only soft (demineralized) water
in the coolant mixture. Water that
contains minerals will cut down on
the coolant's effectiveness.
lDon't add only water. Always add a
proper coolant mixture.
lThe engine has aluminum parts and
must be protected by an ethylene-
glycol-based coolant to prevent
corrosion and freezing.
lDO NOT USE coolants Containing
Alcohol, methanol, Borate or
Silicate.
These coolants could damage the
cooling system.
lDO NOT MIX alcohol or methanol
with the coolant. This could damage
the cooling system.
lDon't use a solution that contains
more than 60% antifreeze.
This would reduce effectiveness.
For mixture percentage:
Protection Volume
Antifreeze solutionDemineralizedwater
Above _
16°C (3°F) 35% 65%
Above _
26°C ( _
15°F) 45% 55%
Above _
40°C ( _
40°F) 55% 45%
To change coolant
WARNING
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 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.
1. Remove the cooling system cap.
Tighten
Loosen
Tighten Loosen
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.
Maintenance and Care
Owner Maintenance
8-19
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Form No.8T72-EA-04G

Black plate (236,1)
4. Drain the system completely. Insert andtighten 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.Brake Fluid
qInspecting 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.
8-20
Maintenance and Care
Owner Maintenance
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Form No.8T72-EA-04G

Black plate (256,1)
qFuse 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
6FAN 30A
*1Cooling fan, Additional fan (air conditioner)
40A*2
7 BTN 1 30A Taillights, Dashboard illumination
8 BTN 2 20A Audio ampí, Turn signal lights
9 ABS 20A Antilock brake systemí
10 STOP 15A Brake lights, Horn, Shift lock
*1 MX-5/Miata
*2 MAZDASPEED MX-5
8-40
Maintenance and Care
íSome models.
Owner Maintenance
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Black plate (257,1)
Fuse panel (Driver's side)
DESCRIPTIONFUSE
RATING PROTECTED
COMPONENT
1 AD
FA N
*120A Add fan motor, Magnet
clutch
2
HEAD.LH15A Headlights (LH)
3
HEAD.RH15A Headlights (RH)
4 ―― ―
5 ST.SIG 7.5A Instrument cluster, Cruise
control
í
6FAN*230ACooling fan, Additional fan
(air conditioner)
7 CIGAR 20A Cigar lighter
8 RADIO 10A Audio
í
9 F.FOG 15A Fog lightsí
10 TAIL 15A Taillights, Front parking
lights, Side-marker lights
11 ENGINE 15A Engine control system
12 METER 15A Instrument cluster
13 TURN 7.5A Turn signal lights
DESCRIPTIONFUSE
RATING PROTECTED
COMPONENT
14 A/B 10A Supplemental restraint
system, Antilock brake
system
í
15 WIPER 20A
Windshield wipers and
washer
16 P.WIND 30A Power windows
17 A/C 7.5A Air conditioner
í
18HAZARD10A Turn signal lights
19 D.LOCK 10A Power door lockí
20 AUDIO 20A Audio ampí
21 DEFOG 15A Rear defroster
22 ROOM 10A Interior light, Auto
antenna, Warning buzzers
*1 MX-5/Miata
*2 MAZDASPEED MX-5
Maintenance and Care
Owner Maintenance
8-41íSome models.
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Form No.8T72-EA-04G