fuel Hyundai Sonata

Maintenance
72
7
G230105AUN
Underbody maintenance
Corrosive materials used for ice and
snow removal and dust control may col-
lect on the underbody. If these materials
are not removed, accelerated rusting can
occur on underbody parts such as the
fuel lines, frame, floor pan and exhaust
system, even though they have been
treated with rust protection.
Thoroughly flush the vehicle underbody
and wheel openings with lukewarm or
cold water once a month, after off-road
driving and at the end of each winter. Payspecial attention to these areas because
it is difficult to see all the mud and dirt. It
will do more harm than good to wet down
the road grime without removing it. The
lower edges of doors, rocker panels, and
frame members have drain holes that
should not be allowed to clog with dirt;
trapped water in these areas can cause
rusting. G230106AUN-EA
Aluminium wheel maintenance
The aluminium wheels are coated with a
clear protective finish.
Do not use any abrasive cleaner, pol-
ishing compound, solvent, or wire
brushes on aluminium wheels. They
may scratch or damage the finish.
Use only a mild soap or neutral deter- gent, and rinse thoroughly with water.
Also, be sure to clean the wheels after
driving on salted roads. This helps pre-
vent corrosion.
Avoid washing the wheels with high- speed car wash brushes.
Do not use any acid detergent. It may damage and corrode the aluminium
wheels coated with a clear protectivefinish.
WARNING
After washing the vehicle, test the
brakes while driving slowly to see if
they have been affected by water. If
braking performance is impaired,
dry the brakes by applying them
lightly while maintaining a slow for-
ward speed.

Maintenance
76
7
EMISSION CONTROL SYSTEM
G270000AFD-EA
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Service Passport
in your vehicle.
Your vehicle is equipped with an emis-
sion control system to meet all Australian
Design Rules (ADR) requirements. There are three emission control sys-
tems which are as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system(3) Exhaust emission control system In order to assure the proper function of
the emission control systems, it is rec-
ommended that you have your car
inspected and maintained by an autho-
rised HYUNDAI dealer in accordancewith the maintenance schedule in this
manual. Caution for the Inspection and
Maintenance Test (With Electronic
Stability Program (ESP) system)
To prevent the vehicle from misfir-
ing during dynamometer testing,
turn the Electronic Stability
Program (ESP) system off by press-
ing the ESP switch.
After dynamometer testing is com- pleted, turn the ESP system back on
by pressing the ESP switch again.
G270100AUN
1. Crankcase emission control system
The positive crankcase ventilation sys-
tem is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valveinto the induction system. G270200AFD-EA
2. Evaporative emission control
System
The Evaporative Emission Control
System is designed to prevent fuel
vapours from escaping into the atmos-
phere.
G270201AUN-EA
Canister
Fuel vapours generated inside the fuel tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapours absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.

777
Maintenance
G270202AUN
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is con-
trolled by the Engine Control Module
(ECM); when the engine coolant temper-
ature is low during idling, the PCSV clos-
es so that evaporated fuel is not taken
into the engine. After the engine warms-
up during ordinary driving, the PCSV
opens to introduce evaporated fuel to the
engine.
G270300AUN
3. Exhaust emission control system
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
G270301AUN
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and
may even violate governmental safety
and emissions regulations.
In addition, damage or performance
problems resulting from any modification
may not be covered under warranty. G270302AUN-EA
Engine exhaust gas precautions (car-
bon monoxide)
Carbon monoxide can be present with other exhaust fumes. Therefore, if you
smell exhaust fumes of any kind inside
your vehicle, have it inspected and
repaired immediately. If you ever sus-
pect exhaust fumes are coming into
your vehicle, drive it only with all the
windows fully open. Have your vehicle
checked and repaired immediately. Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
When the vehicle is stopped in an open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
Never sit in a parked or stopped vehi- cle for any extended time with the
engine running.
When the engine stalls or fails to start, excessive attempts to restart the
engine may cause damage to theemission control system.
WARNING - Exhaust
Engine exhaust gases contain car-
bon monoxide (CO). Though
colourless and odourless, it is dan-
gerous and could be lethal if
inhaled. Follow the instructions
following to avoid CO poisoning.

Maintenance
78
7
G270303BNF-EA
Operating precautions for catalytic
converters (if equipped)
Your vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions
must be observed:
Use only UNLEADED FUEL for petrol engine.
Do not operate the vehicle when there are signs of engine malfunction, such
as misfire or a noticeable loss of per-
formance.
Do not misuse or abuse the engine. Examples of misuse are coasting withthe ignition off and descending steep
grades in gear with the ignition off. Do not operate the engine at high idle
speed for extended periods (5 minutesor more).
Do not modify or tamper with any part of the engine or emission control sys-
tem. All inspections and adjustments
must be made by an authorised
HYUNDAI dealer.
Avoid driving with a very low fuel level. If you run out of petrol, it could causethe engine to misfire and result in
excessive loading of the catalytic con-
ver ter.
Failure to observe these precautionscould result in damage to the catalytic
converter and to your vehicle.
Additionally, such actions could void your
warranty.
WARNING - Fire
A hot exhaust system can ignite
flammable items under your vehi-
cle. Do not park, idle, or drive the
vehicle over or near flammable
objects, such as dry grass, paper,
leaves, etc.

Specifications
4
9
RECOMMENDED LUBRICANTS AND CAPACITIES
I040000BNF-EA
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct
lubricants also help promote engine efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
LubricantVolume ( l/US qt.)Classification
API Service SJ, SL or above,
Petrol 2.4L 4.3(4.5)
ILSAC GF-3 or above
3.3L 5.2(5.5)
Diesel 2.0L 6.7(7.1)
Without CPF ; API Service CH-4 or above, ACEA B4
With CPF (Catalyzed Particulate filter) ; ACEA C3
Manual transaxle fluid 1.75(1.8) API GL-4, SAE 75W-85 (ZIC GF TOP or HD GEAR OIL XLS)
Automatic transaxle fluid Petrol2.4L 9.5(10.0)
3.3L 10.9(11.5)
Diesel 2.0L 8.5(9.0)
Power steering 0.9(1.0) PSF-4
2.4 A/T 6.0(6.3)
Petrol 2.4 M/T 6.5(6.9)
Coolant 3.3 A/T 8.2(8.7)
Diesel2.0 M/T 8.5(9.0)
2.0 A/T 8.3(8.8)
Brake/Clutch fluid 0.9(1.0) FMVSS116 DOT-3 or DOT-4 Fuel 70(18.5 US gal.) -
Engine oil *1 *2
(drain and
refill, with oil filter)
HYUNDAI GENUINE ATF SP-III, DIAMOND ATF SP-III, SK
ATF SP-III or other brands approved by Hyundai Motor Co.
Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminium radiator)
* 1
Refer to the recommended SAE viscosity numbers on the next page.
* 2
Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo
my by reducing the amount of fuel necessary
to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s time, they can offer significant cost and energy savings.

95
Specifications
I040100ANF-EA Recommended SAE viscosity
number Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operation (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and cold
weather performance, however, higher
viscosity engine oils are required for sat-
isfactory lubrication in hot weather. Using
oils of any viscosity other than those rec-ommended could result in engine dam-
age.When choosing an oil, consider the range
of temperature your vehicle will be oper-
ated in before the next oil change.Proceed to select the recommended oil
viscosity from the chart.
CAUTION
Always be sure to clean the area
around any filler plug, drain plug, ordipstick before checking or drain-
ing any lubricant. This is especiallyimportant in dusty or sandy areas and when the vehicle is used onunpaved roads. Cleaning the plug
and dipstick areas will prevent dirtand grit from entering the engineand other mechanisms that could
be damaged.
Temperature Range for SAE Viscosity Numbers
Temperature
Petrol
Engine Oil *
1
°C
(°F)-30 -20 -10 0 10 20 30 40 50 -10 0 20 40 60 80 100 120
Diesel
Engine Oil
5W-30
15W-40
10W-30
0W-30 *2
1. For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-
20,5W-30 (API SJ, SL / ILSAC GF-3). However, if the engine oil is not available in your coun-
try, select the proper engine oil using the engine oil viscosity chart.
2. It is only for extreme cold area and to be restricted by driving condition and area. (Especially, not recommended for sustained high loaded and high speed operation.)
20W-50
10W-30
15W-40
5W-20, 5W-30

F2Your Hyundai should not be modified in any way without the approval of Hyundai. Any modifications
may adversely affect the safety, durability and performance of your Hyundai. In addition, those com-
ponents which are subjected to modification or are added to the vehicle specification, and any result-
ant consequential damage will not be covered by the vehicle manufacturer's warranty.
Your vehicle is equipped with electronic fuel injection and other electronic components. It is possible
for an improperly installed/adjusted two-way radio to adversely affect electronic systems. For this rea-
son, we recommend that you carefully follow the radio manufacturer's instructions or consult your
Hyundai dealer for precautionary measures or special instructions.
CAUTION: MODIFICATIONS TO YOUR HYUNDAI
TWO-WAY RADIO OR MOBILE TELEPHONE INSTALLATION

F4FOREWORD
Thank you for choosing Hyundai. We are pleased to welcome you to the growing number of discriminating people who drive
Hyundai. The advanced engineering and high-quality construction of each Hyundai we build is something of which we're veryproud.
Your Owner's Manual will introduce you to the features and operation of your new Hyundai. It is suggested that you read it care-
fully because the information it contains can contribute greatly to the satisfaction you receive from your new car.
The manufacturer also recommends that all service and maintenance on your car be performed by an authorised Hyundai deal-
er. Hyundai dealers are prepared to provide high-quality service, maintenance and any other assistance that may be required. HYUNDAI MOTOR COMPANY
Note : If for any reason in the future you should sell your Hyundai, please leave this manual in the vehicle for the new owner's use.
Copyright 2008 Hyundai Motor Company. All rights reserved. No part of this publication may be reproduced, stored in any retrieval
system or transmitted in any form or by any means without the prior written permission of Hyundai Motor Company.
CAUTION
Severe engine and transaxle damage may result from the use of poor quality fuels and lubricants that do not meet Hyundai specifications. You must always use high quality fuels and lubricants that meet the specifications listed on Page 9-4 in the Vehicle Specifications section of the Owner's Manual.

Index
2
I
Air cleaner ··································································· 7-34
Airbag-supplemental restraint system ························· 3-29
Appearance care ·························································· 7-70
Audio system ······························································· 4-87
Automatic climate control system ······························· 4-70
Automatic transaxle ····················································· 5-11
Automatic transaxle fluid ············································ 7-30
Battery ········································································· 7-40
Before driving ································································ 5-3
Bonnet ·········································································· 4-18
Boot ············································································· 4-12
Brake and clutch fluid ················································· 7-28
Brake system ······························································· 5-17
Bulb wattage ·································································· 9-2
Child restraint system ·················································· 3-23
Climate control air filter ·············································· 7-36
Cruise control system ·················································· 5-28 Defroster ······································································ 4-59
Dimensions ···································································· 9-2
Door locks ····································································· 4-8
Economical operation ·················································· 5-32
Emergency starting ························································ 6-4
Emission control system ·············································· 7-76
Engine compartment ······················································ 7-2
Engine coolant ····························································· 7-25
Engine number ······························································· 8-3
Engine oil ····································································· 7-24
Explanation of scheduled maintenance items ············· 7-21
Fuel filler lid ································································ 4-20
Fuel filter ····································································· 7-33
Fuel requirements ·························································· 1-2
Fuses ············································································ 7-53
A
B
C
D
E
F