2000 HONDA S2000 radiator

Air Conditioning System
Your car's air conditioning is a sealed
system. Any major maintenance,
such as recharging, should
be done
by a qualified mechanic. You can do
a couple of things to
make sure the
air conditioning works efficiently.
Periodically
check the engine's
radiator and air conditioning
condenser for leaves, insects, and
dirt
stuck to the front surface. These
block the air flow and reduce cooling
efficiency.
Use a light spray from a
hose or a soft
brush to remove them.
NOTICE
The condenser and radiator fins bend
easily. Only use a low-pressure
~pray
or soft-bristle brush to clean them.
182 Maintenance
Run the air conditioning at least once
a
week during the cold weather
months. Run it for at least ten
minutes while you are driving at a
steady speed with
the engine at
normal operating temperature. This
circulates the lubricating oil con­
tained in
the refrigerant.
If the air conditioning does not get as
cold
as before, have your dealer
check the system. Recharge the
system with Refrigerant HFC-134a
(R-134a). (See Specifications on page
245.)
NOTICE
Whenever you have the air conditioning
system serviced, make sure the service
facility uses a refrigerant recycling
system. This system captures the
refrigerant
for reuse. Releasing
refrigerant into the atmosphere can
damage the environment.

If Your Engine Overheats
6. Look for any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution.
If you find a leak, it
must be repaired before you
continue driving (see
Emergency
Towing on page 238 ) .
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.
224 Taking Care of the Unexpected
7. If you don't find an obvious leak,
check the coolant level in
the
radiator reserve tank (see page
120 ) . If the level is below the
MIN mark, add coolant to halfway
between the MIN and
MAX marks.
8. If there was no coolant in the
reserve tank, you may also have to
add coolant to the radiator. Let the
engine cool down until the reading
reaches the middle of the
temperature gauge, or lower,
before checking the radiator.
9. Using gloves or a large heavy
cloth, turn
the radiator cap
counterclockwise, without pushing
down, to
the first stop. This
releases any remaining pressure
in
the cooling system. After the
pressure releases, push down on
the cap and turn it until it comes
off.

lO.Start the engine and set the
temperature control dial to
maximum. Add coolant to the
radiator up to the base of the filler
neck.
If you do not have the
proper coolant mixture available,
you can add plain water.
Remember to have the cooling
system drained and refilled with
the proper mixture as soon as you
can.
ll.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
Emergency
Towing on page 238 .)
If Your Engine Overheats
12.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.
Taking Care of the Unexpected 225

Index
Opening the Hood ......................... 118 Protecting Small Children .......... 26 Replacing Seat Belts After a
Opening the Trunk .......................... 66 Crash ............................................. 34
Operation in Foreign Countries
... 249 R Restraint, Child ................................ 19
Outside Mirrors ............................... 79 Rotation, Tire ................................. 188
Overheating, Engine ..................... 223 Radiator Overheating .................... 223
Oxygenated Fuels .......................... 248 Radio Sound System ........................ 94 s
Rear End Towing ........................... 238 p Rear Lights, Bulb Replacement ... 198 Safety Belts ......................................... 8
Rear
View Mirror ............................. 79 Safety Defects, Reporting ............. 258
Paint Touch-up ............................... 206 Reclining the Seat-backs ................. 68 Safety Labels, Location of .............. 40
Panel Brightness Control ............... 52 Recommended Shift Speeds ........ 134 Safety Messages ................................ ii
Parking Brake .................................. 80 Recovery Vehicle, Emergency Seat Belt, Additional Information .. 33
Parking Lights .................................. 51 Towing ........................................ 238 Lap/Shoulder Belt ....................... 33
PGM-FI System .............................. 251 Reminder Lights .............................. 43 Seat Belt Maintenance ................ 34
Polishing and Waxing ...................
205 Remote Transmitter ........................ 63 Seat Belt System Components ... 33
Power Replacement Information Seat Belts ............................................ 8
Door Locks ...................................
62 Air Cleaner ................................. 172 Cleaning ...................................... 207
Engine, Specifications ............... 244 Engine
Coolant.. ......................... 163 Maintenance ................................. 34
Mirrors .......................................... 79 Engine Oil and Filter ................. 159 Reminder Light and Beeper ....... 44
Windows ....................................... 69 Fuses ........................................... 232 System Components .................... 33
Pregnancy, Using Seat Belts .......... 17 Light Bulbs ................................. 194 Use During Pregnancy ................ 17
Protecting Adults ............................. 12 Schedule ..................................... 146 Seats, Adjusting the ......................... 68
Additional Safety Precautions .... 18 Spark Plugs ................................. 17 4
Serial Number ................................ 242
Advice for Pregnant Women ...... 17 Tires ............................................ 189 Service Intervals ............................ 146
Protecting Children .........................
19 Wiper Blades .............................. 180 Service Manual .............................. 259
Protecting Larger Children ........
29 Service Station Procedures .......... 117
VI