2012 Hyundai Sonata air filter

Features of your vehicle
88
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 the windows on rainy or humid days,
decrease the humidity inside the vehi-
cle by operating the air conditioningsystem.
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 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 characteristic.
If you operate air conditioner exces- sively, the difference between the tem-
perature of the outside air and that ofthe windscreen could cause the outer
surface of the windscreen to fog up,
causing loss of visibility. In this case,
set the mode selection knob or button
to the position and fan speed con-
trol to the lower speed. 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 windscreen 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.
OHM048209
Outside air
Recirculated air
Climate control air filter Blower
Evaporator core
Heater core

489
Features of your vehicle
✽✽NOTICE
 Replace the filter according to the Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty or rough
roads, more frequent air conditioner
filter inspections and changes are
required.
 When the air flow rate suddenly
decreases, the system should be
checked at an authorised HYUNDAI
dealer.Checking the amount of air con-
ditioner refrigerant and compres-sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negativeimpact on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorised HYUNDAI dealer.
✽✽ NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur.
WARNING
The air conditioning system should
be serviced by an authorised
HYUNDAI dealer. Improper service
may cause serious injury to the
person performing the service.

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

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

Maintenance
10
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.* 8
: Manual transaxle fluid should be changed anytime they have been submerged in water.
Number of months or driving distance, whichever comes first
Months1224364860728496
Km×1,000153045607590105120
Steering gear rack, linkage and bootsIIIIIIII
Driveshaft and bootsIIII
Tyre (pressure & tread wear) IIIIIIII
Front suspension ball jointsIIIIIIII
Bolt and nuts on chassis and bodyIIIIIIII
Air conditioner refrigerant (if equipped)IIIIIIII
Air conditioner compressor (if equipped)IIIIIIII
Climate control air filter (if equipped)RRRRRRRR
Manual transaxle fluid (if equipped) * 8II
Automatic transaxle fluid(if equipped) No check, No service required
Exhaust systemIIII
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

Maintenance
12
7
Severe driving conditions
A : Repeated short distance driving
B : Extensive idling
C : Driving in dusty, rough roads
D : Driving in areas using salt or other corrosive
materials or in very cold weather
E : Driving in sandy areas F : More than 50 % driving in heavy city traffic during hot
weather above 32°C (90°F)
G : Driving in mountainous areas
H : Towing a trailer
I : Driving for patrol car, taxi, commercial car or vehicle tow- ing
J : Driving over 140 km/h
K : Driving over 170 km/h
Maintenance itemMaintenance operationMaintenance intervalsDriving condition
Driveshaft and bootsIInspect more frequently
depending on the conditionC, D, E, F
Manual transaxle fluid (if equipped)REvery 120,000 kmC, D, E, G, H, I, K
Automatic transaxle fluid (if equipped)REvery 100,000 km A, C, D, E, F, G, H, I, K
Climate control air filter (if equipped)RReplace more frequently
depending on the conditionC, E