2000 HONDA S2000 radiator

Service Station Procedures
3. Insert it all the way back in its tube. 4. Remove the dipstick again and
check the level.
It should be
between the upper and lower
marks.
120 Before Driving
If it is near or below the lower mark,
see
Adding Oil on page 157.
Engine Coolant Check
Look at the coolant level in the
radiator reserve tank. Make sure it is
between
the MAX and MIN lines. If
it is below the MIN line, see Adding
Engine Coolant
on page 161 for
information on adding the proper
coolant.
Refer to
Owner Maintenance
Checks
on page 155 for information
on checking other items
in your
Honda.

You should check the following
items at the specified intervals.
If
you are unsure of how to perform
any check, turn to the page given.
• Engine oil level -Check every
time you
fill the fuel tank. See
page 119.
• Engine coolant level -Check the
radiator reserve tank every time
you
fill the fuel tank. See page 120 .
• Windshield washer fluid -Check
the level in the reservoir monthly.
If weather conditions cause you to
use the washers frequently, check
the reservoir each time you stop
forfuel. See page 167.
• Brakes and clutch -Check the
fluid level monthly. See page
170 .
Owner Maintenance Checks
• Tires -Check the tire pressure
monthly. Examine the tread for
wear and foreign objects. See page
186.
• Lights -Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
turn signals, brake lights, and
license plate lights monthly. See
page 192.
Maintenance 155

Adding Engine Coolant
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 for leaks.
This coolant should always be a
mixture of
50 percent antifreeze and
50 percent water. Never add straight
antifreeze
or plain water. Always
use Genuine Honda
Antifreeze/Coolant.
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 for aluminum engines.
However, continued use of any non­
Honda coolant can result in
corrosion, causing the cooling
system to malfunction or fail. Have
the cooling system flushed and
refilled with Honda antifreeze/
coolant as soon as possible.
Cooling System
If the reserve tank is completely
empty, you should also check the
coolant level
in the radiator.
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.
1. Make sure the engine and radiator
are cool.
CONTINUED
Maintenance 161

Cooling System
2. Turn the radiator cap counter­
clockwise, without pressing down
on it, until it stops.
This relieves
any pressure remaining in the
cooling system.
3. Remove the radiator cap by
pushing down and turning
counterclockwise.
162 Maintenance
4. The coolant level should be up to
the base of the filler neck. Add
coolant
if it is low.
5. Put the radiator cap back on.
Tighten it fully.
6. Pour coolant into the reserve tank.
Fill it to halfway 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.

Replacing Engine Coolant
The cooling system should be
completely drained and refilled with
new coolant according to
the time
and distance recommendations in
the maintenance schedule. Only use
Genuine Honda Antifreeze/Coolant.
Draining the coolant requires access
to
the underside of the vehicle.
Unless you have the tools and
knowledge, you should have this
maintenance done by a skilled
mechanic.
1. Turn the ignition ON (II). Turn
the heater temperature control
dial fully clockwise.
Turn the
ignition off.
2. Open the hood. Make sure the
engine and radiator are cool to the
touch.
3. Remove the radiator cap.
Cooling System
4. Loosen the drain plug on the
bottom of the radiator. The
coolant will drain through the
splash guard. Remove the drain
bolt and washer from the engine
block.
CONTINUED
Maintenance 163

Cooling System
5. Remove the reserve tank from its
holder by pulling it straight
up.
Drain the coolant, then put the
tank back
in its holder.
164
Maintenance
6. When the coolant stops draining,
tighten the drain plug at
the
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:
61 lbf.ft (83 N·m I 8.5 kgf·m)
7. Mix the recommended antifreeze
with an equal amount of purified
or distilled water
in a clean
container.
The cooling system
capacity
is:
1.72 US gal (6.5 Q I 1.43 Imp gal)
8. Loosen the bleeder bolt on top of
the engine, and remove
the
bleeder cap near the engine oil fill
cap. Pour coolant into the radiator
up to the base of
the filler neck.
Tighten the bleeder bolt and
reinstall the bleeder cap when
coolant comes out in a steady
stream with no bubbles.

9. Start the engine and let it run for
about
30 seconds. Then turn off
the engine.
lO.Pour coolant into the radiator up
to the base of the filler neck.
Cooling System
ll.Fill the reserve tank to the MAX
mark. Install the reserve tank cap.
12.Install the radiator cap, and
tighten it to
the first stop.
13.Start the engine and let it run until
the radiator fan comes on two
times.
Then stop the engine.
CONTINUED
Maintenance 165

Cooling System
14.Remove the radiator cap.
15.Pour coolant into the radiator up
to the base of the filler neck and
into the reserve tank up to the
MAX mark.
16.Start
the engine and hold it at
1,500 rpm until the radiator fan
comes on.
Turn off the engine.
Check the coolant level in the
radiator and add coolant
if needed.
17.Install the radiator cap, and
tighten it fully.
18.If necessary, fill the reserve tank
to the
MAX mark. Install the
reserve tank cap.
166
Maintenance