2008 Hyundai Sonata exhaust

1FEATURES OF YOUR HYUNDAI54
B260L02HP-GAT
Door Ajar Warning Light and
Chime
The door ajar warning light warns you that a door
is not completely closed and the chime warns
you that the key is in the ignition switch.NOTE :The warning chime only sounds whenever
the key is in the ignition switch and the
driver's side front door is open simulta-
neously. The chime sounds until the key is
removed from the ignition switch or the
driver's side front door is closed.
B260M01A-AAT
Low Fuel Level Warning Light
The low fuel level warning light comes on when
the fuel tank is approaching empty. When it
comes on, you should add fuel as soon as
possible. Driving with the fuel level warning light
on or with the fuel level below "E" can cause the
engine to misfire and damage the catalytic
converter.B260N02A-AAT
Check Engine - Malfunction In-
dicator Light (MIL)
This light illuminates when there is a malfunction
of an exhaust gas related component, and the
system is not functioning properly so that the
exhaust gas regulation values are not satisfied.
This light will also illuminate when the ignition key
is turned to the "ON" position, and will go out in a
few seconds after the engine is started. If it
illuminates while driving, or does not illuminate
when the ignition key is turned to the "ON" position,
take your car to your nearest authorized Hyundai
dealer and have the system checked.
The brake fluid level warning light indicates that
the brake fluid level in the brake master cylinder
is low and hydraulic brake fluid conforming to
DOT 3 or DOT 4 specifications should be
added. After adding fluid, if no other trouble is
found, the car should be immediately and care-
fully driven to a Hyundai dealer for inspection.
If further trouble is experienced, the vehicle
should not be driven at all but taken to a dealer
by a professional towing service.
Your Hyundai is equipped with dual-diagonal
braking systems. This means you still have
braking on two wheels even if one of the dual
systems should fail. With only one of the dual
systems working, more than normal pedal travel
and greater pedal pressure are required to stop
the car. Also, the car will not stop in as short a
distance with only half of the brake system
working. If the brakes fail while you are driving,
shift to a lower gear for additional engine braking
and stop the car as soon as it is safe to do so.
B260J01NF-AAT
Charging System Warning Light
The charging system warning light should come
on when the ignition is turned on, then go out
when the engine is running. If the light stays on
while the engine is running, there is a malfunc-
tion in the electrical charging system. If the light
comes on while you are driving, have the sys-
tem checked by your Hyundai dealer as soon
as possible.
B260K01S-AAT
Trunk Lid Open Warning Light
This light remains on unless the trunk lid is
completely closed and latched.

1
FEATURES OF YOUR HYUNDAI
87
!
HNF2016-A B540B03E-AAT
Trunk Lid Emergency Latch ReleaseYour vehicle is equipped with a glow-in-the dark
emergency trunk release lever located inside
the trunk. It will glow after the trunk is closed.
When pulled, this lever will release the trunk
latch mechanism and open the trunk. lid by using the remote release. In this instance,
use the master key to unlock and open the trunk
lid.
To allow the trunk lid to be opened with the
remote release, push the trunk lid lock knob
down, then to the opposite direction of the
"LOCK" position.
WARNING:
Doors and trunk should be kept locked and
the keys should be kept out of the reach of
children. Never let children play in or around
an unattended vehicle. Even very young
children may inadvertently cause the ve-
hicle to move, entangle themselves in the
windows, or lock themselves or others in-
side the trunk. Parents must teach their
children about the dangers of playing in
unattended vehicles.
!
WARNING:
The trunk lid should always be kept com-
pletely closed while the vehicle is in motion.
If it is left open or ajar, poisonous exhaust
gases may enter the car and serious illness
or death may result. See additional warn-
ings concerning exhaust gases on page 2-
2.B540B05Y-AATTrunk Lid Lock Knob
HNF2014-A
If the trunk lid lock knob (located near the latch)
is in the "LOCK" position when the trunk lid is
closed, it will not be possible to open the trunk

DRIVING YOUR HYUNDAI
2
Engine Exhaust Can Be Dangerous! ............................ 2-2
Before Starting the Engine ............................................ 2-3
Key Positions ................................................................ 2-3
Starting .........................................................................2-5
Operating the Manual Transaxle .................................. 2-6
Automatic Transaxle ..................................................... 2-8
Power Adjustable Pedals.............................................2-12
Anti-Lock Brake System (ABS) ...................................2-12
Electronic Stability Control (ESC) System ..................2-13
Good Braking Practices..............................................2-15
Driving for Economy ....................................................2-16
Smooth Cornering........................................................2-17
Winter Driving..............................................................2-17
Trailer or Vehicle Towing .............................................2-20
Vehicle Load Limit........................................................2-23
2

2
DRIVING YOUR HYUNDAI
2
WARNING: ENGINE EXHAUST CAN BE DANGEROUS!
C010A03A-AATEngine exhaust fumes can be extremely dangerous. If, at any time, you smell exhaust fumes inside the vehicle, open the windows immediately.
o Do not inhale exhaust fumes.
Exhaust fumes contain carbon monoxide, a colorless, odorless gas that can cause unconsciousness and death by asphyxiation.
o Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the oil or for any other purpose. If you hear a change
in the sound of the exhaust or if you drive over something that strikes the underneath side of the car, have the exhaust system checked
as soon as possible by your Hyundai dealer.
o Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous practice. Never run the engine in your garage
any longer than it takes to start the engine and back the car out.
o Avoid idling the engine for prolonged periods with people inside the car.
If it is necessary to idle the engine for a prolonged period with people inside the car, be sure to do so only in an open area with the air
intake set at "Fresh" and fan operating at one of the higher speeds so fresh air is drawn into the interior.
If you must drive with the trunk lid open because you are carrying objects that make this necessary:
1. Close all windows.
2. Open side vents.
3. Set the air intake control at "Fresh", the air flow control at "Floor" or "Face" and the fan at one of the higher speeds.
To assure proper operation of the ventilation system, be sure the ventilation air intakes located just in front of the windshield are kept clear
of snow, ice, leaves or other obstructions.
!!
PROPOSITION 65 WARNING:
Engine exhaust and a wide variety of automobile components and parts, including components found in the interior furnishings
in a vehicle, contain or emit chemicals known to the State of California to cause cancer and birth defects and reproductive harm.
In addition, certain fluids contained in vehicles and certain products of component wear contain or emit chemicals known to
the State of California to cause cancer and birth defects or other reproductive harm.

5
VEHICLE MAINTENANCE REQUIREMENTS
5
See Note *
1
See Note *
2
F030C01NF-AATR : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
GENERAL ITEMS
DRIVE BELT (AUTO-TENSIONER, ALT, P/STR'G, A/CON, W/PUMP)
COOLANT
MANUAL TRANSAXLE OIL
AUTOMATIC TRANSAXLE FLUID
BRAKE FLUID
BRAKE HOSES AND LINES
REAR BRAKE DRUMS/LININGS, PARKING BRAKE
BRAKE PADS, CALIPERS AND ROTORS
EXHAUST PIPE AND MUFFLER
SUSPENSION MOUNTING BOLTS
STEERING GEAR BOX, LINKAGE & BOOTS / LOWER ARM
BALL JOINT, UPPER ARM BALL JOINT
POWER STEERING PUMP, BELT AND HOSES
DRIVE SHAFTS AND BOOTS
AIR CONDITIONING REFRIGERANT
CLIMATE CONTROL AIR FILTER
(FOR EVAPORATOR AND BLOWER UNIT) 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 No. DESCRIPTIONMILES X 1000
KILOMETERS X 1000
MONTHS7.5
12
6
I
I15
24
12
I
I
I
I
I
I
I
I
I22.5
36
18
I
I30
48
24
I
I
I
I
I
I
I
I
I
I
I
I
I37.5
60
30
I
I45
72
36
I
I
I
I
I
I
I
I
I52.5
84
42
I
I60
96
48
I
I
I
I
I
I
I
I
I
I
I
I
I67.5
108
54
I
I75
120
60
I
I
I
I
I
I
I
I
I82.5
132
66
I
I90
144
72
I
I
I
I
I
I
I
I
I
I
I
I
I97.5
156
78
I
I105
168
84
R
I
I
I
I
I
I
I
I112.5
180
90
I
I120
192
96
I
I
I
I
I
I
I
I
I
I
I
I
I127.5
204
102
I
I135
216
108
I
I
I
I
I
I
I
I
I142.5
228
114
I
I150
240
120
I
I
I
I
I
I
I
I
I
I
I
I
I
Note:
*1. FOR THE FIRST TIME, REPLACE THE COOLANT AT 60,000 MILES (96,000 KM) OR 60 MONTHS.
AFTER THAT, REPLACE IT EVERY 30,000 MILES (48,000 KM) OR 24 MONTHS.
*2. FOR EVERY 12 MONTHS OR 10,000 MILES (15,000 KM), WHICHEVER OCCURS FIRST : "R"

5
VEHICLE MAINTENANCE REQUIREMENTS
7
F060D01A-AATo Fuel Lines, Fuel Hoses and Connec-
tionsCheck the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trained
technician replace any damaged or leaking
parts immediately.F060B01NF-GATo Drive BeltsInspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation and
replace if necessary. Drive belts should be
checked periodically for proper tension.
F060M01A-AATo Engine Oil and FilterThe engine oil and filter should be changed at the
intervals specified in the maintenance sched-
ule. If the car is being driven in severe condi-
tions, more frequent oil and filter changes are
required.F060C01A-AATo Fuel FilterA clogged filter can limit the speed at which the
vehicle may be driven, damage the emission
system and cause hard starting. If an exces-
sive amount of foreign matter accumulates in
the fuel tank, the filter may require replacement
more frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at the
connections. Fuel filters should be installed by
trained technicians.
F060F01A-AATo Vacuum, Crankcase Ventilation
HosesInspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and
brittle rubber, cracking, tears, cuts, abrasions,
and excessive swelling indicate deterioration.
Particular attention should be paid to examine
those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect the hose routing to assure that the
hoses do not come in contact with any heat
source, sharp edges or moving component
which might cause heat damage or mechanical
wear. Inspect all hose connections, such as
clamps and couplings, to make sure they are
secure, and that no leaks are present. Hoses
should be replaced immediately if there is any
evidence of deterioration or damage.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

5
VEHICLE MAINTENANCE REQUIREMENTS
9
F070L01A-AATo Suspension Mounting BoltsCheck the suspension connections for loose-
ness or damage. Retighten to the specified
torque.F070K01A-AATo Exhaust Pipe and MufflerVisually inspect the exhaust pipes, muffler and
hangers for cracks, deterioration, or damage.
Start the engine and listen carefully for any
exhaust gas leakage. Tighten connections or
replace parts as necessary.F070J01A-AATo Brake Pads, Calipers and RotorsCheck the pads for excessive wear, discs for
run out and wear, and calipers for fluid leakage.
F070Q01A-AATo Air Conditioning RefrigerantCheck the air conditioning lines and connec-
tions for leakage and damage. Check air con-
ditioning performance according to the relevant
shop manual if necessary.
F070P01A-AATo Drive Shafts and BootsCheck the drive shafts, boots and clamps for
cracks, deterioration, or damage. Replace any
damaged parts and, if necessary, repack the
grease.F070N01A-AATo Power Steering Pump, Belt and HosesCheck the power steering pump and hoses for
leakage and damage. Replace any damaged or
leaking parts immediately. Inspect the power
steering belt for evidence of cuts, cracks, ex-
cessive wear, oiliness and proper tension.
Replace or adjust it if necessary.F070M01Y-AATo Steering Gear Box, Linkage & Boots/
Lower Arm Ball Joint, Upper Arm Ball
JointWith the vehicle stopped and engine off, check
for excessive free-play in the steering wheel.
Check the linkage for bends or damage. Check
the dust boots and ball joints for deterioration,
cracks, or damage. Replace any damaged
parts.

6
DO-IT-YOURSELF MAINTENANCE
4
G020C01A-AATVehicle InteriorThe following should be checked each time
when the vehicle is driven:
o Lights operation
o Windshield wiper operation
o Horn operation
o Defroster, heating system operation (and air
conditioning, if installed)
o Steering operation and condition
o Mirror condition and operation
o Turn signal operation
o Accelerator pedal operation
o Brake operation, including parking brake
o Manual transaxle operation, including clutch
operation
o Automatic transaxle operation, including
"Park" mechanism operation
o Seat control condition and operation
o Seat belt condition and operation
o Sun visor operation
If you notice anything that does not operate
correctly or appears to be functioning correctly,
inspect it carefully and seek assistance from
your Hyundai dealer if service is needed.
G020B01A-AATVehicle ExteriorThe following should be checked monthly:
o Overall appearance and condition
o Wheel condition and wheel nut torque
o Exhaust system condition
o Light condition and operation
o Windshield glass condition
o Wiper blade condition
o Paint condition and body corrosion
o Fluid leaks
o Door and hood lock condition
o Tire pressure and condition
(including spare tire)GENERAL CHECKSG020A01NF-AATEngine CompartmentThe following should be checked regularly:
o Engine oil level and condition
o Transaxle fluid level and condition
o Brake fluid level
o Engine coolant level
o Windshield washer fluid level
o Accessory drive belt condition
o Engine coolant hose condition
o Fluid leaks (on or below components)
o Power steering fluid level
o Battery condition
o Air filter condition
o Engine vibration
CHECKING THE ENGINE OILG030B01O-AATRecommended OilThe engine oil quality should meet the following
classification.
API SJ, SL or ABOVE,
ILSAC GF-3 or ABOVE
G030B01JM-U G030A01A-AAT
Engine oil is essential to the performance and
service of the engine. It is suggested that you
check the oil level at least once a week in normal
use and more often if you are on a trip or driving
in severe conditions.