2003 HONDA S2000 cooling

To warm the interior:Air conditioning, as it cools, removes
moisture from the air. When used in
combination with the heater, it
makes the interior warm and dry.To remove f og f rom the inside of the
windows:
This setting is suitable f or all driving
conditions whenever the outside
temperature is above 32°F (0°C).
Start the engine.
Select and Fresh Air mode.
Set the f an to the desired speed.
Adjust the warmth of the air with
the temperature control dial.
Set the f an to the desired speed.
Turn on the air conditioning.
Select and Fresh Air mode.
Adjust the temperature control
dial so the mixture of heated and
cooled air f eels comf ortable. Switch the f an on.
Select .
When you select , the
system automatically switches to
Fresh Air mode and turns on the
A/C.
Adjust the temperature control
dial so the air flow from the
def roster vents f eels warm.
When you switch to another mode
f rom , the A/C stays on.
Press the A/C button to turn if of f .
1.
2.
3.
4.
1.
2.
3.
4.1.
2.
3.
CONT INUED
Heating and Cooling
Comf ort and Convenience Feat ures
T o Heat
T o Heat and Dehumidif y wit h A ir
Condit ioning T o Def og and Def rost
91

To remove exterior f rost or ice f rom
the windshield and side windows
after the vehicle has been sitting out
in cold weather:Start the engine.
Select .
When you select , the
system automatically switches to
Fresh Air mode and turns on the
A/C.
Set the f an and temperature
controls to maximum.
To rapidly remove exterior f rost or
ice f rom the windshield (on very cold
days), f irst select the Recirculation
mode. Once the windshield is clear,
select the Fresh Air mode to avoid
f ogging the windows. 1.
2.
3.
Comf ort and Convenience Feat ures
Heating and Cooling
92
RECIRCULATION
BUTTON
AIR CONDITIONING
BUTTON
FAN CONTROL LEVER MODE CONTROL DIAL
TEMPERATURE CONTROL DIAL

These settings direct all the air f low
to the defroster vents at the base of
the windshield and the side window
def roster vents. The air f low will get
warmer and clear the windows faster
as the engine warms up. You can
close the side vents with the dial
beside each vent. This will send
more warm air to the windshield
defroster vents.
For saf ety, make sure you have a
clear view through all the windows
bef ore driving away.You should shut the system
completely of f only f or the f irst f ew
minutes of driving in cold weather,
until the engine coolant warms up
enough to operate the heater. Keep
the fan on at all other times so stale
air does not build up in the interior. To shut of f the system temporarily,
turn of f the f an (no lights
illuminated).
Heating and Cooling
Comf ort and Convenience Feat ures
To Turn Everything Of f
93

This section also includes
Maintenance Schedules f or normal
driving and severe driving conditions,
a Maintenance Record, and instruc-
tions f or simple maintenance tasks
you may want to take care of
yourself . This section explains why it is
important to keep your car well
maintained and how to f ollow basic
maintenance saf ety precautions.
If you have the skills and tools to per-
f orm more complex maintenance
tasks on your Honda, you may want
to purchase the Service Manual. See
page f or inf ormation on how to
obtain a copy, or see your Honda
dealer.......................
Maintenance Saf ety .148
.
Important Safety Precautions . 149
.................
Maintenance Schedule . 150
...
Required Maintenance Record . 157
.......
Owner Maintenance Checks . 159
..............................
Fluid Locations .160
......................................
Engine Oil .161
..................................
Adding Oil .161
....................
Recommended Oil .161
..............................
Synthetic Oil .162
....................................
Additives .162
.....
Changing the Oil and Filter . 163
.............................
Cooling System .165
............
Adding Engine Coolant . 165
.......
Replacing Engine Coolant . 167
....................
Windshield Washers .171
6-speed Manual Transmission ...........................................
Fluid .172
..........................
Dif f erential Fluid .173
................
Brake and Clutch Fluid . 174
............................
Brake System .174
...........................
Clutch System .175
.....................
Air Cleaner Element .176
....................................
Hood Latch .178 ....................................
Spark Plugs .178
..............................
Replacement .178
............................
Specif ications .180
...........................................
Battery .181
.................................
Wiper Blades .184
..............
Air Conditioning System . 186
..................
Dust and Pollen Filter . 187
.......................................
Drive Belt .188
...............................................
Tires .189
......................................
Inf lation .189
..................................
Inspection .191
..............................
Maintenance .192
.............................
Tire Rotation .192
...................................
Tire Wear .192
...
Replacing Tires and Wheels . 193
......................
Wheels and Tires .194
..........................
Winter Driving .194
.............................
Snow Tires .195
............................
Tire Chains .195
.............................................
Lights .196
.....................
Headlight Aiming .198
........................
Replacing Bulbs .198
...........................
Storing Your Car .206
267
Maintenance
Maint enance147

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.
The coolant you add should always
be a mixture of 50 percent antif reeze
and 50 percent water. Never add
straight antif reeze or plain water.If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
Make sure the engine and radiator
are cool.
Always use Honda All Season
Antif reeze/Coolant Type 2. This
coolant is pre-mixed with 50 percent
antif reeze and 50 percent water. It
does not require any additional
mixing.
If it is not available, you may use
another major-brand non-silicate
coolant as a temporary replacement.
Make sure it is a high-quality coolant
recommended f or aluminum engines.
However, 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.
1.
CONT INUED
A dding Engine Coolant
Cooling Syst em
Maint enance165
RESERVE TANK
MAX MIN
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.

The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
Turn the radiator cap counter-
clockwise, without pressing down
on it, until it stops. This relieves
any pressure remaining in the
cooling system.
Remove the radiator cap by
pushing down and turning
counterclockwise. 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.
Put the radiator cap back on.
Tighten it f ully. Pourthecoolantslowlyand
caref ully so you do not spill. Clean
up any spills immediately. Spilled
coolant could damage components
in the engine compartment. Do not add any rust inhibitors or
other additives to your car’s cooling
system. They may not be compatible
with the coolant or engine compo-
nents.
2.
3.
4.
5.6.
Cooling Syst em
Maint enance166
RADIATOR CAP RESERVE TANK
Fill up to here
FILLER NECK

Turn the ignition ON (II). Turn
the heater temperature control
dial f ully clockwise. Turn the
ignition of f .
Openthehood.Makesurethe
engine and radiator are cool to the
touch.
Remove the radiator cap.Loosen the drain plug on the
bottom of the radiator. The
coolant will drain through the
splash guard. Remove the drain
bolt and washer f rom the engine
block.
Thecoolingsystemshouldbe
completely drained and ref illed with
new coolant according to the time
and distance recommendations in
the maintenance schedule. Only use
Honda All season Antif reeze/
Coolant Type 2.
Draining the coolant requires access
to the underside of the car. Unless
you have the tools and knowledge,
you should have this maintenance
done by a skilled mechanic.
1.
2.
3. 4.
CONT INUED
Replacing Engine Coolant
Cooling Syst em
Maint enance167
DRAIN BOLT
DRAIN PLUG

Remove the reserve tank f rom its
holder by pulling it straight up.
Drain the coolant, then put the
tank back in its holder.When the coolant stops draining,
tightenthedrainplugatthe
bottom of the radiator.
Apply non-hardening sealant to the
drain bolt threads, put a new
washer on the drain bolt, and
reinstall the bolt in the engine
block. Tighten it securely.
Tightening torque:
Loosen the bleeder bolt on top of
the engine, and remove the
bleeder cap near the engine oil f ill
cap.
5. 6.
7.
Cooling Syst em
Maint enance168
RESERVE TANK CAP
HOLDER RESERVE TANK BLEEDER BOLT
61 lbf·ft (83 N·m , 8.5 kgf·m)