2003 Hyundai Sonata radiator

1- 38 FEATURES OF YOUR HYUNDAI
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B290A01A-AATENGINE COOLANT TEMPERATURE
GAUGE
WARNING:
Never remove the radiator cap when the
engine is hot. The engine coolant is under
pressure and could erupt and cause severe
burns. Wait until the engine is cool before
adding coolant to the reservoir.
The needle on the engine coolant temperature
gauge should stay in the normal range. If it
moves across the dial to "H" (Hot), pull over and
stop as soon as possible and turn off the engine.
Then open the hood and check the coolant
reservoir level and the water pump drive belt. If
you suspect cooling system trouble, have your
cooling system checked by a Hyundai dealer as
soon as possible.
B300A01A-AATSPEEDOMETER
Your Hyundai's speedometer is calibrated in
miles per hour (on the outer scale) and kilome-
ters per hour (on the inner scale).HEF-009HEF-008B
B280A01A-AATFUEL GAUGE
The needle on the gauge indicates the approxi-
mate fuel level in the fuel tank. The fuel capacity
is given in Section 9.
HEF-010 B270A01A-AAT
BRAKE PAD WEAR WARNING SOUND
The front disc brake pads have wear indicators
that should make a high-pitched squealing or
scraping noise when new pads are needed. The
sound may come and go or be heard all the time
when the vehicle is moving. It may also be heard
when the brake pedal is pushed down firmly.
Excessive rotor damage will result if the worn
pads are not replaced. See your Hyundai dealer
immediately.

1- 50 FEATURES OF YOUR HYUNDAI
!
B510A01A-AATOUTSIDE REAR VIEW MIRROR
Manual Type
The outside rearview mirrors are equipped with
a remote control for your convenience. It is
operated by the control lever in the bottom front
corner of the window.
Before driving away, always check that your
mirrors are positioned so you can see behind
you, both to the left and right sides, as well as
directly behind your vehicle. When using the
mirror, always exercise caution when attempt-
ing to judge the distance of vehicles behind or
along side of you.
CAUTION:If the mirror control is jammed with ice, do
not attempt to break it free using the control
handle or by manipulating the face of the
mirror. Use an approved spray de-icer (not
radiator antifreeze) to release the frozen
mechanism or move the vehicle to a warm
place and allow the ice to melt.
!
B510B01Y-AATElectric Type (If installed)
The outside rearview mirrors can be adjusted
to your preferred rear vision, both directly be-
hind the vehicle, and to the rear of the left and
right sides.
The remote control outside rearview mirror
switch controls the adjustments for both right
and left outside mirrors.
B500A01A-AATGLOVE BOX
WARNING:
To avoid the possibility of injury in case of
an accident or a sudden stop, the glove box
door should be kept closed when the car is
in motion.
To open the glove box, pull on the glove box
release lever.
B500A02Y
HEF-205
HEF-129A

1- 58 FEATURES OF YOUR HYUNDAI
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B560A02Y-AATREMOTE FUEL-FILLER LID RELEASE
The fuel-filler lid may be opened from inside the
vehicle by pushing up on the fuel-filler lid opener
located on the driver side door.
NOTE:If the fuel-filler lid will not open because ice
has formed around it, tap lightly or push on
the lid to break the ice and release the lid. Do
not pry on the lid. If necessary, spray around
the lid with an approved de-icer fluid (do
not use radiator anti-freeze) or move the
vehicle to a warm place and allow the ice to
melt.
B550A02Y-AATHIGH-MOUNTED REAR STOP LIGHT
In addition to the lower-mounted rear stoplights
on either side of the car, the high mounted rear
stoplight in the center of the rear window also
lights when the brakes are applied.WARNING:o Gasoline vapors are dangerous. Before
refueling, always stop the engine and
never allow sparks or open flames near
the filler area. If you need to replace the
filler cap, use a genuine Hyundai re-
placement part.
o If you open the fuel filler cap during high
ambient temperatures, a slight "pres-
sure sound" may be heard. This is nor-
mal and not a cause for concern.
Whenever you open the fuel filler cap,
turn it slowly.
o Make sure the fuel filler cap is replaced
and securely seated after fueling. Failure
to replace or fully seat the fuel filler cap
will result in fuel vapors escaping into
the atmosphere and the check engine
(MIL) indicator illuminating.
B550A03Y
HEF-132AB560A02Y
Fuel Cap Holder

WHAT TO DO IN AN EMERGENCY 3- 3
o If you should accidentally get acid on your
skin or in your eyes, immediately remove
any contaminated clothing and flush the area
with clear water for at least 15 minutes. Then
promptly obtain medical attention. If you
must be transported to an emergency facil-
ity, continue to apply water to the affected
area with a sponge or cloth.
o The gas produced by the battery during the
jump-start operation is highly explosive. Do
not smoke or allow a spark or an open flame
in the vicinity.
o The battery being used to provide the jump
start must be 12-volt. If you cannot deter-
mine that it is a 12-volt battery, do not attempt
to use it for the jump start.
o To jump start a car with a discharged battery,
follow this procedure exactly:
1. If the booster battery is installed in another
vehicle, be sure the two vehicles are not
touching.
2. Turn off all unnecessary lights and acces-
sories in both vehicles.
3. Attach the clamps of the jumper cable in the
exact location shown on the illustration. First,
attach one clamp of the jumper cable to the
positive (+) post or cable of the discharged
battery. Then attach the other end of the
same cable to the positive (+) post or cable
of the booster battery. Next, using the other
cable, attach one clamp to the negative (-)
post or cable of the booster battery. Then
attach the other end of that cable to a solidmetal part of the engine away from the
battery. Do not connect the cable to any
moving part.
4. Start the engine in the car with the booster
battery and let it run for a few minutes. This
will help to assure that the booster battery is
fully charged. During the jumping operation,
run the engine in this vehicle at about 2,000
rpm.
5. Start your engine using the normal starting
procedure. After the engine starts, leave the
jumper cables connected and let the engine
run at fast idle or about 2,000 rpm for several
minutes.
6. Carefully remove the jumper cables in the
reverse order of attachment.
If you do not know why your battery became
discharged (because the lights were left on,
etc.), have the charging system checked by
your Hyundai dealer.D030A01A-AATIF THE ENGINE OVERHEATS
If your temperature gauge indicates overheat-
ing, you experience a loss of power, or hear loud
pinging or knocking, the engine is probably too
hot. If this happens, you should:
1. Pull off the road and stop as soon as it is safe
to do so.
2. Place the gear selector lever in "P" (auto-
matic), or neutral (manual transaxle) and set
the parking brake. If the air conditioning is on,
turn it off.
3. If engine coolant is running out under the car
or steam is coming out from the hood, stop
the engine. Do not open the hood until the
coolant has stopped running or the steaming
has stopped. If there is no visible loss of
engine coolant and no steam, leave the
engine running and check to be sure the
engine cooling fan is operating. If the fan is
not running, turn the engine off.
4. Check to see if the water pump drive belt is
missing. If it is not missing, check to see that
it is tight. If the drive belt seems to be
satisfactory, check for coolant leaking from
the radiator, hoses or under the car. (If the
air conditioning had been in use, it is normal
for cold water to be draining from it when you
stop).

3- 4 WHAT TO DO IN AN EMERGENCY
!
!WARNING:While the engine is running, keep hair,
hands and clothing away from moving parts
such as the fan and drive belts to prevent
injury.
D040A01Y-AATSPARE TIRE
The following instructions for the temporary
spare tire should be observed:
1. Check inflation pressure as soon as practi-
cal after installing the spare tire, and adjust
to the specified pressure. The tire pressure
should be periodically checked and main-
tained at the specified pressure while the tire
is stored.
Tire Size
Inflation Pressure
T125/80R15
60 psi (420 kPa) 5. If the water pump drive belt is broken or
engine coolant is leaking out, stop the engine
immediately and call the nearest Hyundai
dealer for assistance.
WARNING:Do not remove the radiator cap when the
engine is hot. This can allow coolant to be
blown out of the opening and cause seri-
ous burns.
6. If you cannot find the cause of the overheat-
ing, wait until the engine temperature has
returned to normal. Then, if coolant has been
lost, carefully remove the radiator cap and
add coolant to bring the fluid level in the
reservoir up to the halfway mark.
7. Proceed with caution, keeping alert for fur-
ther signs of overheating. If overheating
happens again, call a Hyundai dealer for
assistance.
CAUTION:Serious loss of coolant indicates there is a
leak in the cooling system and this should
be checked as soon as possible by a Hyundai
dealer.
!
4. As the temporary spare tire is specifically
designed for your car, it should not be used
on any other vehicle.
5. The temporary spare tire should not be used
on any other wheels, nor should standard
tires, snow tires, wheel covers or trim rings
be used with the temporary spare wheel. If
such use is attempted, damage to these
items or other car components may occur.
6. The temporary spare tire pressure should
be checked once a month while the tire is
stored.
Spare Tire Pressure
2. The spare tire should only be used tempo-
rarily and should be returned to the luggage
compartment as soon as the original tire can
be repaired or replaced.
3. Continuous use at speeds of over 50 mph
(80 km/h) is not recommended.
CAUTION:o Do not use snow chains with your tem-
porary spare tire.
o Do not use more than one temporary
spare tire at a time.
!

6- 2 DO-IT-YOURSELF MAINTENANCE
1. Engine oil filler cap
2. Brake Booster
3. Brake fluid reservoir
4. Clutch fluid reservoir (If installed)
5. Under hood junction box 6. Windshield washer fluid reservoir
7. Power steering fluid reservoir
8. Engine oil level dipstick
9. Engine cover
G010A02Y-GATENGINE COMPARTMENT (2.4 DOHC)
10.Automatic transaxle fluid level dipstick
(If installed)
11.Radiator cap
12.Air cleaner
13.Coolant reservoir cap
14.Battery
HEF-064
12345
6 7 8 9 10 11 12 13 14

DO-IT-YOURSELF MAINTENANCE 6- 3
1. Air cleaner
2. Brake fluid reservoir
3. Brake booster
4. Windshield washer fluid reservoir
5. Power steering fluid reservoir6. Engine oil level dipstick
7. Engine cover
8. Engine oil filler cap
9. Automatic transaxle fluid level dipstick
(If installed)
G010B03Y-AATENGINE COMPARTMENT (2.7 V6 Delta)
10.Radiator cap
11.Battery
12.Coolant reservoir cap
13.Under hood junction box
G010B04Y
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4 5 6 7 8 9 10 11 12
13

DO-IT-YOURSELF MAINTENANCE 6- 7
!
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4. When the oil has stopped draining, replace
the drain plug using a new washer and
retighten by turning it clockwise.
Tightening torque is: 3.5 ~ 4.5 kgf.m
5. Remove the oil filter by turning it counter-
clockwise with a oil filter wrench of the proper
size. A certain amount of oil will come out
when you remove the filter. So be sure to
have your drain pan in place underneath it.
6. Install a new oil filter in accordance with the
instructions on the carton or on the filter itself.
Do not over-tighten.
Tightening torque is: 1.2 ~ 1.6 kgf.m
Be sure that the mounting surface on the
engine is clean and that the old gasket is
removed completely. Lubricate the new
gasket on the filter with clean engine oil
before installation.
7. Refill the crankcase with the recommended
engine oil. Refer to the specification in chap-
ter 9 for engine oil capacity.
8. Start the engine and check to be sure no oil
is leaking from the drain plug or oil filter.
9. Shut off the engine and recheck the oil level.G050A01A-AATCHECKING AND CHANGING THE EN-
GINE COOLANT
WARNING:
Do not remove the radiator cap when the
engine is hot. When the engine is hot, the
engine coolant is under pressure and may
erupt through the opening if the cap is
removed. You could be seriously burned if
you do not observe this precaution. Do not
remove the radiator cap until the radiator is
cool to the touch.
NOTE:Always dispose of used engine oil in an
environmentally acceptable manner. It is
suggested that it be placed in a sealed
container and taken to a service station for
reclamation. Do not pour the oil on the
ground or put it into the household trash.
WARNING:Used motor oil may cause irritation or can-
cer of the skin if left in contact with the skin
for prolonged periods of time. Wash your
hands thoroughly with soap and warm
water as soon as possible after handling
used oil.