engine Hyundai Sonata

7
Engine compartment / 7-2
Maintenance services / 7-3
Owner maintenance / 7-4
Scheduled maintenance service / 7-6
Explanation of scheduled maintenance items / 7-13
Engine oil / 7-16
Engine coolant / 7-18
Brake/clutch fluid / 7-21
Power steering fluid / 7-22
Washer fluid / 7-23
Parking brake / 7-24
Air cleaner / 7-25
Climate control air filter / 7-27
Wiper blades / 7-29
Battery / 7-31
Tyres and wheels / 7-34
Fuses / 7-44
Light bulbs / 7-55
Appearance care / 7-62
Emission control system / 7-68
Maintenance

Maintenance
2
7
ENGINE COMPARTMENT
1. Power steering fluid reservoir
2. Engine coolant reservoir
3. Windscreen washer fluid reservoir
4. Radiator cap
5. Engine oil filler cap
6. Engine oil dipstick
7. Brake fluid reservoir
8. Air cleaner
9. Fuse box10.
Positive battery terminal
11. Negative battery terminal
OYF019003R/OYF079060R-1
■■ 2.0L
■
■ 2.4L

Maintenance
4
7
OWNER MAINTENANCE
The following lists are vehicle checks and
inspections that should be performed by
the owner or an authorised HYUNDAIdealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance Checks are
generally not covered by warranties and
you may be charged for labour, parts and
lubricants used. Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in coolant reser-
voir.
Check the windscreen washer fluid level.
Look for low or under-inflated tyres.
WARNING - Maintenance
work
Performing maintenance work on a vehicle can be dangerous. You
can be seriously injured whilst
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 whilst 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
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot coolant
and steam may blow out under
pressure. This could cause burns
or other serious injury.

75
Maintenance
Whilst operating your vehicle:
Note any changes in the sound of theexhaust or any smell of exhaust fumes
in the vehicle.
Check for vibrations in the steering wheel. Notice any increased steering
effort or looseness in the steering
wheel, or change in its straight-aheadposition.
Notice if your vehicle constantly turns slightly or “pulls” to one side when trav-
elling on smooth, level road.
When stopping, listen and check for unusual sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.
If any slipping or changes in the oper- ation of your transaxle occurs, check
the transaxle fluid level.
Check automatic transaxle P (Park) function.
Check parking brake.
Check for fluid leaks under your vehicle (water dripping from the air condition-
ing system during or after use is nor-mal).
At least monthly:
Check coolant level in the enginecoolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn sig-
nals and hazard warning flashers.
Check the inflation pressures of all tyres including the spare.
At least twice a year
(i.e., every Spring and Fall):
Check radiator, heater and air condi- tioning hoses for leaks or damage.
Check windscreen washer spray and wiper operation. Clean wiper blades
with clean cloth dampened with wash-er fluid.
Check headlight alignment.
Check muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
Check for worn tyres and loose wheel nuts.

77
Maintenance
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*1
: Adjust alternator and power steering (and water pump drive belt) and air conditioner drive belt (if equipped).
Inspect and if necessary correct or replace.
* 2
: Check the engine oil level and leak every 500 km or before starting a long trip.
* 3
: For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.
NORMAL MAINTENANCE SCHEDULE
Number of months or driving distance, whichever comes first
Months1224364860728496
Km×1,000153045607590105120
Drive belts *
1IIII
Engine oil and engine oil filter * 2RRRRRRRR
Air cleaner filterIIRIIRII
Spark plugs2.0 LReplace every 40,000 km *3
2.4 LReplace every 168,000 km * 3
MAINTENANCE
INTERVALS
MAINTENANCE ITEM

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

79
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*6
: When adding coolant, use only deionized water or soft water for your vehicle and never mix hard water in the coolant filled at
the factory. An improper coolant mixture can result in serious malfunction or engine damage.
* 7
: For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.
Number of months or driving distance, whichever comes first
Months1224364860728496
Km×1,000153045607590105120
Engine coolant * 6At first, replace at 210,000 km or 10 years:
after that, replace every 30,000 km or 24 months * 7
Battery conditionIIIIIIII
All electrical systemsIIII
Brake lines, hoses and connectionsIIIIIIII
Brake pedal, Clutch pedal (if equipped)IIII
Parking brakeIIII
Brake/Clutch fluidIIIIIIII
Disc brakes and padsIIIIIIII
Power steering fluid and hoses (if equipped)IIIIIIII
MAINTENANCE
INTERVALS
MAINTENANCE ITEM

711
Maintenance
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
The following items must be serviced more frequently on cars mainly used under severe driving conditions.
Refer to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and if necessary, adjust, correct, clean or replace
Maintenance itemMaintenance operationMaintenance intervalsDriving condition
Engine oil and engine oil filterREvery 7,500 km or 6 months A, B, C, D, E, F, G, H, I, K
Air cleaner filterRReplace more frequently
depending on the conditionC, E
Spark plugs RReplace more frequently
depending on the conditionB, H
Steering gear rack, linkage and bootsIInspect more frequently
depending on the conditionC, D, E, F, G
Front suspension ball jointsIInspect more frequently
depending on the conditionC, D, E, F, G
Disc brakes and pads, calipers and rotorsIInspect more frequently
depending on the conditionC, D, E, G, H
Parking brakeIInspect more frequently
depending on the conditionC, D, G, H

713
Maintenance
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter The engine oil and filter should be
changed at the intervals specified in the
maintenance schedule. If the car is being
driven in severe conditions, more fre-quent oil and filter changes are required. Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil satu-
ration and replace if necessary. Drive
belts should be checked periodically forproper tension and adjusted as neces-
sary. Fuel filter A clogged filter can limit the speed at
which the vehicle may be driven, damage
the emission system and cause multiple
issues such as hard starting. If an exces-
sive amount of foreign matter accumu-
lates 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 an authorised HYUNDAI
dealer.
Fuel lines, fuel hoses and con- nections
Check the fuel lines, fuel hoses and con-
nections for leakage and damage. Have
an authorised HYUNDAI dealer replace
any damaged or leaking parts immedi-
ately.Vapour hose and fuel filler cap
The vapour hose and fuel filler cap
should be inspected at those intervals
specified in the maintenance schedule.
Make sure that a new vapour hose or fuelfiller cap is correctly replaced.
Vacuum crankcase ventilation hoses (if equipped)
Inspect the surface of hoses for evidence
of heat and/or mechanical damage. Hard
and brittle rubber, cracking, tears, cuts,
abrasions, and excessive swelling indi-
cate 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 movingcomponent which might cause heat dam-
age or mechanical wear. Inspect all hose
connections, such as clamps and cou-
plings, 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.

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.)