cooling Hyundai Sonata

467
Features of your vehicle
Operation Tips
To keep dust or unpleasant fumes fromentering the car through the ventilation
system, temporarily set the air intakecontrol to the recirculated air position.
Be sure to return the control to the
fresh air position when the irritation
has passed to keep fresh air in the
vehicle. This will help keep the driver
alert and comfortable.
Air for the heating/cooling system is drawn in through the grilles just ahead
of the windshield. Care should be
taken that these are not blocked by
leaves, snow, ice or other obstructions.
To prevent interior fog on the wind- shield, set the air intake control to the
fresh air position and fan speed to the
desired position, turn on the air condi-
tioning system, and adjust temperature
control to desired temperature. D230503AFD
Air conditioning (if equipped)
All HYUNDAI Air Conditioning Systems
are filled with environmentally friendly
R-134a refrigerant which does not dam-
age to the ozone layer.
1. Start the engine. Push the air condi-
tioning button.
2. Set the mode to the position.
3. Set the air intake control to the outside air or recirculated air position.
4. Adjust the fan speed control and tem- perature control to maintain maximum
comfort.
When maximum cooling is desired, set the temperature control to the extreme
left position then set the fan speedcontrol to the highest speed.
✽✽ NOTICE

Features of your vehicle
68
4
Air conditioning system operation tips
If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
To help reduce moisture inside of win- dows on rainy or humid days, decrease
the humidity inside the vehicle by oper-ating the air conditioning system.
During air conditioning system opera- tion, you may occasionally notice aslight change in engine speed as the
air conditioning compressor cycles.
This is a normal system operation
characteristic.
Use the air conditioning system every month if only for a few minutes to
ensure maximum system performance.
When using the air conditioning sys- tem, you may notice clear water drip-
ping (or even puddling) on the ground
under the passenger side of the vehi-
cle. This is a normal system operation
characteristic.
Operating the air conditioning system in the recirculated air position provides
maximum cooling, however, continual
operation in this mode may cause the
air inside the vehicle to become stale.
During cooling operation, you may occasionally notice a misty air flow
because of rapid cooling and humid air
intake. This is a normal system opera-
tion characteristics. D230300AFD-EA
Climate control air filter (if equipped) The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-cle from the outside through the heating
and air conditioning system. If dust or
other pollutants accumulate in the filter
over a period of time, the air flow from the
air vents may decrease, resulting in
moisture accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorised HYUNDAI
dealer.✽✽
NOTICE

471
Features of your vehicle
D240100ANF
Automatic heating and air condi- tioning The automatic climate control system is
controlled by simply setting the desired
temperature.
The Full Automatic Temperature Control
(FATC) system automatically controls the
heating and cooling system as follows;
1. Push the AUTO button. It is indicatedby AUTO on the display. The modes,
fan speeds, air intake and air-condi-tioning will be controlled automatically
by temperature setting. 2. Push the temperature control button to
set the desired temperature.
If the temperature is set to the lowestsetting (Lo), the air conditioning sys-
tem will operate continuously.
3. To turn the automatic operation off, press any button except temperature
control button. If you press the mode
selection button, air-conditioning but-
ton, defrost button, air intake control
button or fan speed button, the select-
ed function will be controlled manually
while other functions operate automat-
ically.
Regardless of the temperature setting,
when using automatic operation, the airconditioning system can automatically
turn on to decrease the humidity inside
the vehicle, even if the temperature is set
to warm.✽✽ NOTICE
Never place anything over the sensor located on the instrument panel to
ensure better control of the heating andcooling system.
ONF048115/HONF048083EA

Features of your vehicle
72
4
D240200ANF
Manual heating and air condition- ing The heating and cooling system can be
controlled manually by pushing buttons
other than the AUTO button. In this case,
the system works sequentially according
to the order of buttons selected.
When pressing any button except AUTO
button while automatic operation, thefunctions not selected will be controlled
automatically.
1. Start the engine.
2. Set the mode to the desired position.
3. Set the temperature control to the
desired position.
4. Set the air intake control to the outside (fresh) air position.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system on.
Press the AUTO button in order to con-
vert to full automatic control of the sys-tem. D240201ANF
Mode selection
The mode selection button controls the
direction of the air flow through the venti-lation system.
Refer to the illustration in the “Manual cli- mate control system”.
The air flow outlet port is converted as
follows: Face-Level (B, D)
Air flow is directed toward the upper body
and face. Additionally, each outlet can becontrolled to direct the air dischargedfrom the outlet.
Bi-Level (B, D, C, E)
Air flow is discharged towards the face and
floor.
Floor-Level (C, E, A, D)
Most of the air flow is directed to the
floor, with a small amount of the air beingdirected to the windshield and side win-
dow defroster.
Floor/Defrost-Level (A, C, E, D)
Most of the air flow is directed to the floorand the windshield with a small amount
directed to the side window defrosters.
ONF048084EA

477
Features of your vehicle
WINDSHIELD DEFROSTING AND DEFOGGING
D250000AUN-EA
For maximum defrosting, set the temper- ature control to the extreme right/hot posi-
tion and the fan speed control to the high-est speed.
If warm air to the floor is desired while defrosting or defogging, set the mode tothe floor-defrost position.
Before driving, clear all snow and ice from the windshield, rear window, outside rear
view mirrors, and all side windows.
Clear all snow and ice from the bonnet and air inlet in the cowl grill to improveheater and defroster efficiency and to
reduce the probability of fogging up insideof the windshield. Manual climate control system D250101AFD
To defog inside windshield
1. Select any fan speed except “0” posi-
tion.
2. Select desired temperature.
3. Select the or position.
4. The outside (fresh) air and air condi- tioning will be selected automatically.
If the air-conditioning and outside (fresh) air position are not selected automatical-
ly, press the corresponding button manu-
ally. D250102AFD
To defrost outside windshield
1. Set the fan speed to the highest
(extreme right) position.
2. Set the temperature to the extreme hot position.
3. Select the position.
4. The outside (fresh) air and air condi- tioning will be selected automatically.
ONF048092
WARNING - Windshield
heating
Do not use the or position during cooling operation in
extremely humid weather. The dif-
ference between the temperature ofthe outside air and that of the wind-shield could cause the outer sur-
face of the windshield to fog up,
causing loss of visibility. In this
case, set the mode selection knob
or button to the position and
fan speed control knob or button to
the lower speed.
ONF048093

Driving your vehicle
40
5
E120200AUN
Use high quality ethylene glycol coolant
Your vehicle is delivered with high quality
ethylene glycol coolant in the cooling
system. It is the only type of coolant that
should be used because it helps prevent
corrosion in the cooling system, lubri-
cates the water pump and prevents
freezing. Be sure to replace or replenish
your coolant in accordance with themaintenance schedule in section 7.
Before winter, have your coolant tested toassure that its freezing point is sufficient
for the temperatures anticipated during
the winter. E120300AFD-EA
Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the bat-
tery and cables as described in section
7. The level of charge in your battery can
be checked by an authorised HYUNDAI
dealer or a service station. E120400AFD-EA
Change to "winter weight" oil if
necessary In some climates it is recommended that
a lower viscosity "winter weight" oil be
used during cold weather. See section 9
for recommendations. If you aren't sure
what weight oil you should use, consult
an authorised HYUNDAI dealer.
E120500AUN
Check spark plugs and ignition system
Inspect your spark plugs as described in
section 7 and replace them if necessary.
Also check all ignition wiring and compo-
nents to be sure they are not cracked,
worn or damaged in any way.
CAUTION
Chains that are the wrong size or
improperly installed can damageyour vehicle's brake lines, sus-pension, body and wheels.
Stop driving and retighten the chains any time you hear themhitting the vehicle.
WARNING - Tyre chains
The use of chains may adversely affect vehicle handling.
Do not exceed 30 km/h (20 mph) or the chain manufacturer’s rec-
ommended speed limit, whichev-
er is lower.
Drive carefully and avoid bumps, holes, sharp turns, and other
road hazards, which may cause
the vehicle to bounce.
Avoid sharp turns or locked- wheel braking.

Driving your vehicle
46
5
When you are ready to leave after park- ing on a hill
1. With the manual transaxle in Neutral
or automatic transaxle in P (Park),
apply your brakes and hold the brake
pedal down while you:

and

2. Slowly remove your foot from the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks. E140500AUN-EA
Maintenance when trailer towing
Your vehicle will need service more often
when you regularly towing a trailer.
Important items to pay particular atten-tion to include engine oil, automatic
transaxle fluid, axle lubricant and cooling
system fluid. Brake condition is another
important item to check frequently. Each
item is covered in this manual, and the
Index will help you find them quickly. If
you’re towing, it’s a good idea to review
these sections before you start your trip.
Don’t forget to also maintain your trailer
and towbar. Follow the maintenance
schedule that accompanied your trailer
and check it periodically. Preferably, con-
duct the check at the start of each day’s
driving. Most importantly, all towbar nutsand bolts should be tight.
WARNING
- Parking brake
It can be dangerous to get out of
your vehicle if the parking brake is
not firmly set.
If you have left the engine running,
the vehicle can move suddenly. You
or others can be seriously injured
or cause fatality.CAUTION
Due to higher load during trailer usage, overheating might occurin hot days or during uphill driv- ing. If the coolant gauge indicates
over-heating, switch off the A/C and stop the vehicle in a safe areato cool down the engine.
When towing check transaxle fluid more frequently.
If your vehicle is not equipped with the air conditioner, youshould install a condenser fan to improve engine performance
when towing a trailer.

What to do in an emergency
6
6
IF THE ENGINE OVERHEATS
F050000AFD-EA
If your temperature gauge indicates over-
heating, you experience a loss of power,
or hear loud pinging or knocking, the
engine is probably too hot. If this hap-
pens, 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 (automatic transaxle) or neutral (manu-
al 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 bonnet, stop the engine. Do notopen the bonnet 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 operat-
ing. If the fan is not running, turn the
engine off.
4. While engine is switched off, 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 con-
ditioning had been in use, it is normal
for cold water to be draining from it
when you stop). 5. If the water pump drive belt is broken
or engine coolant is leaking out, stop the engine immediately and call the
nearest authorised HYUNDAI dealer
for assistance. 6. If you cannot find the cause of the
overheating, wait until the engine tem-
perature has returned to normal. Then,if coolant has been lost, carefully add
coolant to the reservoir to bring the
fluid level in the reservoir up to the
halfway mark.
7. Proceed with caution, keeping alert for further signs of overheating. If over-heating happens again, call an autho-
rised HYUNDAI dealer for assistance.
CAUTION
Serious loss of coolant indicates
there is a leak in the cooling systemand this should be checked as soonas possible by an authorisedHYUNDAI dealer.
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.
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 serious burns.

75
Maintenance
G020200AFD-EA Owner maintenance precautions
Improper or incomplete service may
result in problems. This section gives
instructions only for the maintenance
items that are easy to perform.
As explained earlier in this section, sev-
eral procedures can be done only by an
authorised HYUNDAI dealer with special
tools.
✽✽NOTICE
Improper owner maintenance during the warranty period may affect warran-
ty coverage. For details, read the sepa-
rate Service Passport provided with the
vehicle. If you're unsure about any serv-
icing or maintenance procedure, have itdone by an authorised HYUNDAI deal-
er.
WARNING - Maintenance
work
Performing maintenance work on a vehicle can be dangerous. You
can be seriously injured while
performing some maintenance
procedures. If you lack sufficient
knowledge and experience or the
proper tools and equipment to do
the work, have it done by an
authorised HYUNDAI dealer.
Working under the bonnet with the engine running is dangerous.
It becomes even more dangerous
when you wear jewelry or loose
clothing. These can become
entangled in moving parts and
result in injury. Therefore, if you
must run the engine while work-
ing under the bonnet, make cer-
tain that you remove all jewelry
(especially rings, bracelets,
watches, and necklaces) and all
neckties, scarves, and similar
loose clothing before gettingnear the engine or cooling fans.WARNING - Diesel Engine
Never work on injection system with engine running or within 30
seconds after shutting off engine.
High-pressure pump, rail, injectorsand high-pressure pipes are sub-
ject to high pressure even after the
engine stopped. The fuel jet pro-
duced by fuel leaks may cause seri-
ous injury, if it touches the body.
People using pacemakers shouldnot be within 30cm of the ECU orwiring harness within the engine
room while engine is running, since
the high currents in the electronic
engine control system produce
considerable magnetic fields.

Maintenance
10
7
NORMAL MAINTENANCE SCHEDULE - PETROL ENGINE (CONT.)
MAINTENANCE
INTERVALSNumber of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96
Km×1,000 15 30 45 60 75 90 105 120
Valve clearance * 4
Fuel filler cap
II
Vacuum hose and crankcase ventilation hosesIIII
Fuel filter *
5RR
Fuel lines, hoses and connections I I I I I I I I Cooling system
Inspect “Coolant level and leak” every day Inspect every 96,000 km or 48 months
Inspect “Water pump” when replacing the drive belt
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.* 4
: Inspect for excessive valve noise and/or engine vibration and adjust if necessary. An authorised HYUNDAI dealer should per-
form the operation.
* 5
: Inspect and replace when there is a problem with starting the engine or fuel supplies.
MAINTENANCE ITEM