2004 Hyundai Sonata brake

6- 8 DO-IT-YOURSELF MAINTENANCE
G050D02A-AATTo Change the Engine CoolantThe engine coolant should be changed at those
intervals specified in the vehicle maintenance
schedule in Section 5.
G050C01A-AAT
To Check the Coolant LevelThe coolant level can be seen on the side of the
plastic coolant reservoir. The level of the cool-
ant should be between the "L" and "F" lines on
the reservoir when the engine is cool. If the level
is below the "L" mark, add engine coolant to
bring it up between "L" and "F". If the level is low,
inspect for coolant leaks and recheck the fluid
level frequently. If the level drops again, visit
your Hyundai dealer for an inspection and
diagnosis of the reason.Ambient
temperature
°C ( °F)
-15 (5)
-25 (-13)
-35 (-31)
-45 (-49)
65%
60%
50%
40% 35%
40%
50%
60%Water Antifreeze
solution Engine Coolant concentration
G050B01A-AATRecommended Engine Coolant
Use a high quality ethylene-glycol coolant in a
50/50 mix with water. The engine coolant should
be compatible with aluminum engine parts.
Additional corrosion inhibitors or additives should
not be used. The cooling system must be
maintained with the correct concentration and
type of engine coolant to prevent freezing and
corrosion. Never allow the concentration of
antifreeze to exceed the 60% level or go below
the 35% level, or damage to the cooling system
may result. For proper concentration when
adding or replacing the engine coolant, refer to
the following table.
G050B01Y
CAUTION:Engine coolant can damage the finish of
your car. If you spill engine coolant on the
car, wash it off thoroughly with clean water.
1. Park the car on level ground, set the park-
ing brake and remove the radiator cap when
cool.
2. Be sure your drain receptacle is in place.
Open the drain cock on the radiator. Allow all
the engine coolant to drain from the cooling
system, then securely close the drain cock.
3. Check Section 9 for the capacity of the
cooling system in your car. Then, following
the manufacturer's directions on the engine
coolant container, add the appropriate quan-
tity of coolant to the radiator.
!

DO-IT-YOURSELF MAINTENANCE 6- 13
!
G110C01Y-AATTransaxle Fluid CapacityThe fluid capacity of the automatic transaxle is
8.2 U.S. quarts.
WARNING:The transaxle fluid level should be checked
when the engine is at normal operating
temperature. This means that the engine,
radiator, exhaust system etc., are very hot
so you should exercise great care not to
burn yourself during this procedure.
G110D02L-AATTo Check the Transaxle Fluid Level
Park the car on level ground with the parking
brake engaged. When the transaxle fluid level
is checked, the transaxle fluid should be at
normal operating temperature and the engine
idling.While the engine is idling, apply the brakes and
move the gear selector lever from "P" to each
of its other positions — "R", "N", "D" — and then
return to "N" or "P". With the engine still idling:
1. Open the hood, being careful to keep hands,
long hair and clothing clear of any moving
parts.
2. Remove the transaxle dipstick, wipe it clean,
reinsert the dipstick as far as it will go, then
remove it again. Now check the fluid level on
the dipstick. It should be in the "HOT" range
on the dipstick.
3. If the transaxle fluid level is low, use a funnel
to add transaxle fluid through the dipstick
tube until the level reaches the "HOT" range.
Do not overfill.
C090A01YG110D02Y-1
DOHC V6

6- 14 DO-IT-YOURSELF MAINTENANCE
!
!
G120E02A-AATAdding Brake Fluid
G120D01A-AATTo Check the Fluid Level
The fluid level in the brake fluid reservoir should
be checked periodically. The level should be
between the "MIN" and "MAX" marks on the side
of the reservoir. If the level is at or below the
"MIN" mark, carefully add fluid to bring it up to
"MAX". Do not overfill.
G120C02A-AATRecommended Brake Fluid
Use only hydraulic brake fluid conforming to
DOT 3 or DOT 4 specifications in your braking
system. Follow the instructions printed on the
container.
G120B01A-AATChecking the Brake Fluid Level
G120A01A-AATCHECKING THE BRAKES
WARNING:
The cooling fan is controlled by engine
coolant temperature and may sometimes
operate even when the engine is not run-
ning. Use extreme caution when working
near the blades of the cooling fan, so that
you are not injured by a rotating fan blade.
As the engine coolant temperature de-
creases, the fan will automatically shut off.
This is a normal condition.
CAUTION:Because brakes are essential to the safe
operation of the car, it is suggested that
they be checked and inspected by your
Hyundai dealer. The brakes should be
checked and inspected for wear at those
intervals specified in the vehicle mainte-
nance schedule in Section 5.
!
WARNING:Use caution when handling brake fluid. It
can damage your vision if it gets into your
eyes. It will also damage your vehicle's
paint if spilled on it and not removed imme-
diately.
!
HKSOM120
HEF-234
Fluid level should be within "HOT" range

DO-IT-YOURSELF MAINTENANCE 6- 15
!
G130A01A-AATCHECKING THE CLUTCH FLUID
To Check the Clutch FluidG130B02A-AATTo Replace the Fluid
Recommended brake fluid conforming to DOT
3 or DOT 4 specification should be used. The
reservoir cap must be fully tightened to avoid
contamination from foreign matter or moisture.
NOTE:Do not allow any other liquids to contami-
nate the brake fluid. Seal damage will result.
WARNING:Handle brake fluid carefully. It can damage
your vision if it gets into your eyes. Use only
DOT 3 or DOT 4 specification fluid from a
sealed container. Do not allow the fluid can
or reservoir to remain open any longer than
required. This will prevent entry of dirt and
moisture which can damage the brake sys-
tem and cause improper operation.
To add brake fluid, first wipe away any dirt then
unscrew the fluid reservoir cap. Slowly pour the
recommended fluid into the reservoir. Do not
overfill. Carefully replace the cap on the reser-
voir and tighten.
!
The clutch fluid level in the master cylinder
should be checked when performing other un-
der hood services. The system should be
checked for leakage at the same time. Check
to make certain that the clutch fluid level is
always between the "MAX" and "MIN" level
markings on the fluid reservoir. Fill as required.
Fluid loss indicates a leak in the clutch system
which should be inspected and repaired imme-
diately. Consult your Hyundai dealer.
WARNING:Use caution when handling brake fluid. It
can damage your vision if you get it in your
eyes. It will also damage your vehicle's
paint if spilled on it and not removed imme-
diately.
G140A01A-AATAIR CONDITIONING CARE
Keeping the Condenser Clean
The air conditioning condenser (and engine
radiator) should be checked periodically for
accumulation of dirt, dead insects, leaves, etc.
These can interfere with maximum cooling ef-
ficiency. When removing such accumulations,
brush or hose them away carefully to avoid
bending the cooling fans.
G130A01Y
!

DO-IT-YOURSELF MAINTENANCE 6- 17
G160A01A-AATCHECKING CLUTCH PEDAL
FREE-PLAY
With the engine off, press lightly on the clutch
pedal until you feel a change in resistance. This
is the clutch pedal free-play. The free-play
should be within the limits specified in the illus-
tration. If it is not, have it inspected by your
Hyundai dealer and adjusted or repaired if
necessary.
G170A02A-AATCHECKING BRAKE PEDAL
FREE-PLAY
With the engine off, press down on the brake
pedal several times to reduce the vacuum in the
brake booster.
Then, using your hand, press down slowly on
the brake pedal until you feel a change in
resistance. This is the brake pedal free-play.
The free-play should be within the limits speci-
fied in the illustration above. If it is not, have it
inspected by your Hyundai dealer and adjusted
or repaired if necessary.
G160A01EHXGS508
0.24~0.51 in.
(6~13 mm)0.12~0.31 in.
(3~8 mm)
G180A01A-AATCHECKING BRAKE PEDAL
CLEARANCE
You need a helper to check the brake pedal
clearance. With the engine running, have your
helper press down on the brake pedal several
times and then hold it down with a force of about
110 lbs (50 kg, 490 N). The brake pedal clear-
ance is the distance from the top surface of the
brake pedal to the asphalt sheeting under the
floor mat.
If the brake pedal clearance is not within the
limits specified in the illustration, have it in-
spected by your Hyundai dealer and adjusted
or repaired if necessary.
G180A01L
2.95 in. (75 mm)

9- 2 VEHICLE SPECIFICATIONS
J060A01Y-AAT
FUEL SYSTEM
J050A02Y-AATBRAKE
J040A03Y-AATELECTRICAL
J030A05Y-AATTIRE
J020A01Y-AAT
POWER STEERING
J010A03Y-AATMEASUREMENT
186.9 in. (4747 mm)
71.7 in. (1820 mm)
55.9 in. (1422 mm)
106.3 in. (2700 mm)
60.6 in. (1540 mm)
60.2 in. (1530 mm) Overall length
Overall width
Overall height (unladen)
Wheel base
Wheel tread
Front
Rear
Type
Wheel free play
Rack stroke
Oil pump typeRack and pinion
0 ~ 1.18 in. (0 ~ 30 mm)
5.75 in. (146 mm)
5.6 in. (142 mm)
Vane type
Tire pressure
30 (207)
60 (414)Tire
Standard
Spare
Item
Battery
Generator2.4L
MF 60AH (12V)2.7L (V6)
MF 68 AH (12V)
95A (13.5 V)
Dual hydraulic with brake booster
Solid disc
Disc type (with ABS)
Drum type (without ABS)
Cable operated on rear wheel Type
Front brake type
Rear brake type
Parking brake
17.2 us.gal (14.3 lmp.gal, 65 liter)
psi (kpa)
Size
P205/65R15
P205/60R16
T125/70D15, T125/70R15Fuel tank capacity 15" tire
16" tire

9- 4 VEHICLE SPECIFICATIONS
J080A09Y-AATLUBRICATION CHART
API SH, Hot Climate: SAE 20W-40, 20W-50 (ABOVE 32°F OR 0°C)
SG or Normal Climate:SAE 10W-30 10W-40, 10W-50 (ABOVE -10°F OR -23°C)
SG/CDCold Climate:SAE 5W-30 5W-40 (BELOW 100°F OR 38°C)
HYUNDAI GENUINE PARTS MTF 75W/90 (API GL-4)
HYUNDAI GENUINE ATF, DIAMOND ATF SP-III or SK ATF SP-III
Ethylene glycol base for aluminum radiator
PSF-3 type fluid
DOT 3 or DOT 4 Equivalent Engine
TransaxleManual
Auto
Coolant
Power steering
Brakes and clutch fluid
Quantity (us.qts) (lmp.qts, liter)
2.2 (1.8, 2.1)
8.2 (6.9, 7.8)
0.95 (0.9)
As requiredItem
Oil & Coolant Standard2.4L 2.7L (V6)
Drain & refill;
Without oil filter :
4.2 (3.5, 4.0)
With oil filter :
4.5 (3.76, 4.3)Drain & refill;
Without oil filter :
4.45 (3.69, 4.2)
With oil filter :
4.77 (3.96, 4.5)
7.7 (6.4, 7.3)9.0 (7.6, 8.6)

10- 2 INDEX
A
Air bag ...............................................................................................1-28
Air Cleaner Filter ...............................................................................6-11
Air Conditioning
Care..............................................................................................6-15
Operation............................................................................ 1-71, 6-16
Switch...........................................................................................1-70
Antenna..........................................................................................1-103
Ashtray..............................................................................................1-46
Audio (H240, H260, H290)........................................... 1-81, 1-86, 1-92
B
Battery..................................................................................... 2-14, 6-19
Brake
Anti-lock system..........................................................................2-10
Checking the brakes ....................................................................6-14
Fluid ..............................................................................................6-14
Pedal clearance...........................................................................6-17
Pedal free-play.............................................................................6-17
Practices......................................................................................2-12
Breaking-In your New Hyundai .......................................................... 1-3
Bulb Replacement.............................................................................6-21
C
Care of Cassette Tapes ................................................................1-101
Cassette Tape Player Operation (H240, H290) .................... 1-84, 1-95
Catalytic Converter............................................................................. 7-3
Child Restraint System.....................................................................1-22
Child-Protector Rear Door Lock ......................................................... 1-6
Cigarette Lighter................................................................................1-45
Clock .................................................................................................1-45Clutch
Checking fluid...............................................................................6-15
Pedal free-play.............................................................................6-17
Combination Light
Headlight flasher..........................................................................1-42
Headlight switch...........................................................................1-41
High-beam switch........................................................................1-42
Lane change signal ......................................................................1-41
Turn signal operation...................................................................1-41
Compact Disc Player Operation (H260, H290) ..................... 1-89, 1-97
Consumer Information........................................................................ 8-5
Cooling Fans.....................................................................................6-20
Corrosion protection
Cleaning the interior....................................................................... 4-4
Protecting your Hyundai from corrosion....................................... 4-2
Washing and waxing...................................................................... 4-3
Cruise Control...................................................................................1-62
D
Defrosting/Defogging........................................................................1-77
Door
Door locks...................................................................................... 1-4
Front door edge warning light ......................................................1-60
Locking, unlocking front door with a key ...................................... 1-4
Drink Holder ......................................................................................1-46
Drive Belts.........................................................................................6-18
Driving
Economical driving .......................................................................2-13
Smooth cornering.........................................................................2-13
Winter driving...............................................................................2-13