cooling Hyundai Sonata

Maintenance
8
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
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
: The fuel filter is considered to be maintenance free but periodic inspection is recommended for this maintenance schedule
depends on fuel quality. If there are some important matters like fuel flow restriction, surging, loss of power, hard starting p rob-
lem etc, replace the fuel filter immediately regardless of maintenance schedule and consult an authorised HYUNDAI dealer for
details.
Number of months or driving distance, whichever comes first
Months1224364860728496
Km×1,000153045607590105120
Valve clearance * 4I
Vapour hose and fuel filler capII
Fuel tank air filter (if equipped)IRIR
Vacuum hoseIIIIIIII
Fuel filter *5IRIR
Fuel lines, hoses and connectionsII
Cooling system
Inspect “Coolant level adjustment and leak” every day
At first, inspect 60,000 km or 48 months
after that, inspect every 30,000 km or 24 months
MAINTENANCE INTERVALS
MAINTENANCE ITEM

Maintenance
14
7
Air cleaner filter
A Genuine HYUNDAI air cleaner filter is recommended when the filter isreplaced. Spark plugs
Make sure to install new spark plugs of
the correct heat range.
Valve clearance
Inspect excessive valve noise and/or
engine vibration and adjust if necessary.
An authorised HYUNDAI dealer should
perform the operation. Cooling system
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts. Coolant The coolant should be changed at the
intervals specified in the maintenance
schedule.
Manual transaxle fluid (if equipped)
Inspect the manual transaxle fluid
according to the maintenance schedule.
Automatic transaxle fluid (if equipped)
Automatic transaxle fluid should not be
checked under normal usage conditions.
But in severe conditions, the fluid should
be changed at an authorised HYUNDAIdealer in accordance to the scheduledmaintenance at the beginning of this
chapter.
✽✽
NOTICE
Automatic transaxle fluid colour is basi-
cally red.
As the vehicle is driven, the automatic
transaxle fluid will begin to look darker.
It is normal condition and you should
not judge the need to replace the fluid
based upon the changed colour.
CAUTION
The use of a non-specified fluid could result in transaxle malfunc-
tion and failure.
Use only specified automatictransaxle fluid. (Refer to“Recommended lubricants and
capacities” in section 8.)

Maintenance
18
7
ENGINE COOLANT
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant level at least once a year, at thebeginning of the winter season, and
before travelling to a colder climate. Checking the coolant level
WARNING
Removing radiatorcap
Never attempt to remove the radi- ator cap whilst the engine is
operating or hot. Doing so mightlead to cooling system and
engine damage and could result
in serious personal injury fromescaping hot coolant or steam.
Turn the engine off and wait until it cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back whilst
the pressure is released from the
cooling system. When you aresure all the pressure has been
released, press down on the cap,
using a thick towel, and continue
turning counterclockwise to
remove it.
(Continued)
WARNING The electric motor (cool-
ing fan) is controlled byengine coolant tempera-
ture, refrigerant pres-
sure and vehicle speed.
It may sometimes operate evenwhen the engine is not running.
Use extreme caution when working
near the blades of the cooling fan
so that you are not injured by a
rotating fan blades. As the engine
coolant temperature decreases, the
electric motor will automatically
shut off. This is a normal condition.
(Continued)
Even if the engine is not operat- ing, do not remove the radiator cap or the drain plug whilst the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.

719
Maintenance
Check the condition and connections of all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F and L marks on the side of the
coolant reservoir when the engine iscool.
If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F, but do not overfill. If frequent
additions are required, see an authorised
HYUNDAI dealer for a cooling systeminspection.
Recommended engine coolant
When adding coolant, use only deion-ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
The engine in your vehicle has alu- minum engine parts and must be pro-
tected by an ethylene-glycol-based
coolant to prevent corrosion and freez-ing.
DO NOT USE alcohol or methanol coolant or mix them with the specifiedcoolant.
Do not use a solution that contains more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution. For mixture percentage, refer to the fol-
lowing table.
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OYF079005

753
Maintenance
Description Symbol Fuse ratingProtected component
FUSE
40AEMS Box (Fuse - F35/ F36/ F37/ F38)
30A ESP(or ESC) Control Module, ABS Control Module
-- -
10A PCM (G4KD/G4KE)
10A A/C Control Module
-- -
15A Battery Sensor
20A PCM
15A Stop Lamp Switch, RLY. 13 (HAC Relay)
20A RLY. 7 (Front Wiper Deicer Relay)
20A Rear fog light
--
40A RLY. 4 (Cooling Fan (Low) Relay), RLY. 5 (Cooling Fan (Hi) Relay)
20A Ignition Coil #1 /#2 /#3 /#4, Condenser
--
15A Oxygen Sensor (Up), Oxygen Sensor (Down), RLY. 4 (Cooling Fan (Low) Relay)
15A Immobiliser Module, Camshaft Position Sensor #1 /#2, Purge Control Solenoid Valve,
Variable Intake Solenoid Valve, Crankshaft Position Sensor, Oil Control Valve #1 /#2
15A Injector #1/ #2/ #3/ #4 (G4KD/G4KE), RLY. 2 (Fuel Pump Relay)
20A RLY. 2 (Fuel Pump Relay)
10A Multipurpose Check Connector, PCM

I3
Index
Capacities (Lubricants) ....................................................8-4 Care
Exterior care ..............................................................7-62
Interior care ..............................................................7-67
Tyre care ....................................................................7-34
Cargo weight ..................................................................5-58
Central door lock switch ................................................4-17
Centre console storage ..................................................4-100
Changing tyres ..................................................................6-9Chains Tyre chains ................................................................5-47
Checking tyre inflation pressure ....................................7-35
Child restraint system ....................................................3-30 Lap belt......................................................................3-33
Lap/shoulder belt ......................................................3-33
Child-protector rear door lock ........................................4-19
Climate control system (Automatic) ..............................4-90 Air conditioning ........................................................4-95
Automatic heating and air conditioning....................4-91
Manual heating and air conditioning ........................4-92
Climate control system (Manual) ..................................4-81 Air conditioning ........................................................4-86
Climate control air filter............................................4-88
Heating and air conditioning ....................................4-82
Cigarette lighter ............................................................4-102
Climate control air filter ................................................4-88 Climate control air filter ................................................7-27
Clock (Digital) ..............................................................4-105
Clothes hanger ..............................................................4-106
Combined instrument, see instrument cluster ................4-43
Compact spare tyre ........................................................6-14
Compact spare tyre replacement ....................................7-39
Coolant ............................................................................7-18
Cooling fluid, see engine coolant ..................................7-18
Crankcase emission control system ................................7-68
Cruise control system ....................................................5-36
Cup holder ....................................................................4-103
Curtain air bag ................................................................3-46
Dashboard, see instrument cluster ..................................4-43
Dashboard illumination, see instrument panel
illumination..................................................................4-44
Defogging (Windscreen) ................................................4-97
Defogging logic (Windscreen)........................................4-99
Defroster (Rear window) ................................................4-80
Defrosting (Windscreen) ................................................4-97
Digital clock..................................................................4-105
Dimensions ......................................................................8-2
Displays, see instrument cluster ....................................4-43
Display illumination, see instrument panel illumination..................................................................4-44
Door locks ......................................................................4-16
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