2004 HONDA S2000 cooling

Your vehicle’s exhaust contains
carbon monoxide gas. You should
have no problem with carbon
monoxide entering the vehicle in
normal driving if you maintain your
vehicle properly.
Have the exhaust system inspected
f or leaks whenever:The vehicle is raised f or an oil
change.
You notice a change in the sound
of the exhaust.
The vehicle was in an accident
that may have damaged the under-
side. High levels of carbon monoxide can
collect rapidly in enclosed areas,
such as a garage. Do not run the
engine with the garage door closed.
Even with the door open, run the
engine only long enough to move the
vehicle out of the garage. With the trunk lid open, air f low can
pull exhaust gas into your vehicle’s
interior and create a hazardous
condition. If you must drive with the
trunk lid open, open all the windows,
and set the heating and cooling
system as shown below.
If you must sit in your parked vehicle,
even in an unconf ined area, with the
engine running, adjust the heating
and cooling system as f ollows:
Push the button.
Select the mode.
Turn the f an on high speed.
Set the temperature control to a
comfortable setting.
1.
2.
3.
4.
Carbon Monoxide Hazard
Driver and Passenger Saf ety34
Carbon monoxide gas is toxic.
Breathing it can cause
unconsciousness and even kill
you.
Avoid any enclosed areas or
activities that expose you to
carbon monoxide.

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This shows how much f uel you have.
It may show slightly more or less
than the actual amount.
This shows the temperature of the
engine’s coolant. During normal
operation, the reading should be in
the middle of the gauge. In severe
driving conditions, the reading may
reach near the red mark. If it
reaches the red (Hot) mark, pull
safely to the side of the road. Turn to
page f or instructions and
precautions on checking the engine’s
cooling system.The clock displays the time with the
ignition switch in the ON (II)
position.
When you f inish all the
adjustments, press the CLOCK
button. When you f inish the minute
adjustment, press and release the
CLOCK button. The hour display
will blink. Adjust the hour by
pressing the or button. Press and hold the CLOCK button
until the minute display blinks.
Adjusttheminutebypressingthe or button.
Turn the ignition switch to ON (II).
To set the clock:
1.
2.
3.
4.
163
Gauges
Inst rument s and Cont rols
Fuel Gauge T emperature GaugeClock
45
NOTICE:
CLOCK BUTTON
BUTTON BUTTON TEMPERATURE GAUGE
FUEL GAUGE
CLOCK
Avoid driving with an
extremely low f uel level. Running out
of f uel could cause the engine to
misf ire, damaging the catalytic
converter.

Push this lever up and down to
increase and decrease the f an speed.
The indicators next to the lever show
you the speed selected.
Turning this dial clockwise increases
the temperature of the airflow.
This button turns the air
conditioning on and of f . The
indicator in the button comes on
when the A/C is on.
This button controls the source of
the air going into the system. When
the indicator in this button is on, air
f rom the vehicle’s interior is sent
through the system again
(Recirculation mode). When the
indicator is of f , air is brought in f rom
outside the vehicle (Fresh Air mode).The outside air intakes f or the
heating and cooling system are at
the base of the windshield. Keep this
area clear of leaves and other debris.
ThesystemshouldbeleftinFresh
Air mode under almost all conditions.
Keeping the system in Recirculation
mode, particularly with the A/C of f ,
can cause the windows to fog up.
Switch to Recirculation mode when
driving through dusty or smoky
conditions, then return to Fresh Air
mode.
This button turns the rear window
def ogger of f and on (see page ).
Use the mode control dial to select
the vents the air flows from. Some
air will f low f rom the dashboard
vents in all modes. Air flows from the vents on
both sides of the instrument panel,
andfromthedashboardventinfront
of the passenger.
Airf low is divided between
the vents in the dashboard and the
f loor vents.
Air flows from the center
vents in the dashboard above the
audio system, the vents on both
sides of the instrument panel, and
f rom the f loor vents. Select this
position when you drive with the
convertible top f olded.
Air f lows f rom the f loor
vents and the vents on both sides of
the instrument panel.
Airf low is divided between
the f loor vents and the def roster
vents at the base of the windshield,
and the vents on both sides of the
instrument panel.
50
Comf ort and Convenience Feat ures
Fan Control L ever
T emperature Control Dial
Air Conditioning (A/C) Button
Recirculation Button
Rear Window Def ogger Button
Mode Control Dial
Airf low Buttons
75

Turn of f the engine and let it sit
f or several minutes, then check
the oil level on the dipstick. If
necessary, add more oil.If the coolant level in the reserve
tank is at or below the MIN line, add
coolant to bring it up to the MAX line.
Inspect the cooling system f or leaks. If Honda antif reeze/coolant is not
available, you may use another
major-brand non-silicate coolant as a
temporaryreplacement.Makesureit
is a high-quality coolant
recommended f or aluminum engines.
Continued use of any non-Honda
coolant can result in corrosion,
causing the cooling system to
malf unction or f ail. Have the cooling
system f lushed and ref illed with
Honda antif reeze/coolant as soon as
possible.
Always use Honda All Season
Antif reeze/Coolant Type 2. This
coolant is pre-mixed with 50 percent
antif reeze and 50 percent water.
Never add straight antifreeze or
plain water.
9.
Changing the Oil and Filter, Engine Coolant
Maint enance
A dding Engine Coolant
132
NOTICE:
RESERVE TANK
MAX MIN
Improper disposal of engine
oil can be harmf ul to the environment.
If you change your own oil, please
dispose of the used oil properly. Put it
in a sealed container, and take it to a
recycling center. Do not discard it in a
trash bin or dump it on the ground.

If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.When the radiator and engine are
cool, relieve any pressure in the
cooling system by turning the
radiator cap counterclockwise,
without pressing down.
Remove the radiator cap by
pushing down and turning
counterclockwise.The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
Pour the coolant slowly and
caref ully so you do not spill. Clean
up any spill immediately; it could
damage components in the engine
compartment.
Put the radiator cap on, and
tighten it fully.
Pour coolant into the reserve tank.
Fill it to half way between the MAX
and MIN marks. Put the cap back
on the reserve tank.
Do not add any rust inhibitors or
other additives to your vehicle’s
cooling system. They may not be
compatible with the coolant or
engine components.
2. 3.
4.
5.
1.
Engine Coolant
Maint enance133
RADIATOR CAP
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.

If your seat belts get dirty, use a sof t
brush with a mixture of mild soap
and warm water to clean them. Do
not use bleach, dye, or cleaning
solvents. Let the belts air-dry bef ore
you use the vehicle.
Dirt build-up in the loops of the seat
belt anchors can cause the belts to
retract slowly. Wipe the insides of
the loops with a clean cloth
dampened in mild soap and warm
water or isopropyl alcohol.The driver’s f loor mat that came
with your vehicle hooks over the
f loor mat anchor. This keeps the
f loor mat f rom sliding f orward and
possibly interf ering with the pedals.
If you remove the driver’s f loor mat,
make sure to re-anchor it when you
putitbackinyourvehicle.If you use a non-Honda f loor mat,
make sure it f its properly and that it
canbeusedwiththefloormat
anchor. Do not put additional f loor
mats on top of the anchored mat.
This f ilter removes the dust and
pollenthatisbroughtinfromthe
outside through the heating and
cooling system.
Have your Honda dealer replace this
f ilter every 30,000 miles (48,000 km)
under normal conditions. It should
be replaced every 15,000 miles
(24,000 km) if you drive primarily in
urban areas that have high
concentrations of soot in the air, or if
the airflow from the heating and
cooling system becomes less than
usual.
Seat Belts, Floor Mats, Dust and Pollen Filter
Maint enance
Seat Belts
Floor Mats
Dust and Pollen Filter
143

If you need to park your vehicle f or
an extended period (more than one
month), there are several things you
should do to prepare it f or storage.
Proper preparation helps prevent
deterioration and makes it easier to
get your vehicle back on the road. If
possible, store your vehicle indoors.Fill the f uel tank.
Change the engine oil and f ilter.
Wash and dry the exterior
completely.
Cleantheinterior.Makesurethe
carpeting, floor mats, etc., are
completely dry.
Raise the convertible top cover.
Leave the parking brake off. Put
the transmission in Reverse. Block the rear wheels.
If the vehicle is to be stored f or a
longer period, it should be
supported on jackstands so the
tires are of f the ground.
Leave one window open slightly (if
the vehicle is being stored
indoors).
Disconnect the battery.
Cover the vehicle with a
‘‘breathable’’ cover, one made
f rom a porous material such as
cotton. Non-porous materials, such
as plastic sheeting, trap moisture,
which can damage the paint.
If possible, periodically run the
engine until it reaches f ull
operating temperature (the
cooling f ans cycle on and of f
twice). Pref erably, do this once a
month.
If you store your vehicle f or 1 year or
longer, have your Honda dealer
perf orm the inspections called f or in
the 2 years/30,000 miles (48,000 km)
maintenance schedule (Normal
Conditions) as soon as you take it
out of storage (see page ). The
replacements called f or in the
maintenance schedule are not
needed unless the vehicle has
actually reached that time or mileage.
Support the f ront wiper blade
arms with a f olded towel or rag so
they do not touch the windshield.
To minimize sticking, apply a
silicone spray lubricant to all door
and trunk seals. Also, apply a
vehiclebodywaxtothepainted
surfaces that mate with the door
and trunk seals.
123
Maint enance
Vehicle Storage
152

If there was no coolant in the
reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the reading
reaches the middle of the
temperature gauge, or lower,
bef ore checking the radiator.Using gloves or large heavy cloth,
turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. Af ter the
pressure releases, push down on
the cap, and turn it until it comes
off.
Start the engine, and set the
temperature control dial to
maximum. Add coolant to the
radiator up to the base of the f iller
neck. If you do not have the
proper coolant mixture available,
you can add plain water.
Remember to have the cooling
system drained and ref illed with
the proper mixture as soon as you
can.Put the radiator cap back on
tightly. Run the engine, and watch
the temperature gauge. If it goes
back to the red mark, the engine
needs repair (see
on page ).
If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly.
9. 8.
7. 10.
11.176
T aking Care of t he Unexpect ed
Emergency
Towing
If theEngineOverheats
165
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.