2011 Hyundai Sonata spark plugs

543
Driving your vehicle
Use high quality ethylene glycol
coolantYour 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 the
maintenance schedule in section 7.
Before winter, have your coolant tested to
assure that its freezing point is sufficient
for the temperatures anticipated during
the winter.Check battery and cablesWinter 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 authorized HYUNDAI
dealer or a service station.
Change to "winter weight" oil if
necessaryIn some climates it is recommended that
a lower viscosity "winter weight" oil be
used during cold weather. See section 8
for recommendations. If you aren't sure
what weight oil you should use, consult
an authorized HYUNDAI dealer.Check spark plugs and ignition
systemInspect 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.
WARNING
- Tire chains
• The use of chains may adverselyaffect vehicle handling.
• Do not exceed 20 mph (30 km/h) 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.
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.

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63
What to do in an emergency
2. When the vehicle is stopped, turn onyour emergency hazard flashers, set
the parking brake and put the transaxle
in P (automatic transaxle) or reverse
(manual transaxle).
3. Have all passengers get out of the car. Be sure they all get out on the side of
the car that is away from traffic.
4. When changing a flat tire, follow the instruction provided later in this sec-
tion.If engine stalls while driving1. Reduce your speed gradually, keeping a straight line. Move cautiously off the
road to a safe place.
2. Turn on your emergency flashers.
3. Try to start the engine again. If your vehicle will not start, contact an
authorized HYUNDAI dealer or seek
other qualified assistance.
If engine doesn't turn over or
turns over slowly1. If your vehicle has an automatictransaxle, be sure the shift lever is in N
(Neutral) or P (Park) and the emer-
gency brake is set.
2. Check the battery connections to be sure they are clean and tight.
3. Turn on the interior light. If the light dims or goes out when you operate the
starter, the battery is discharged.
4. Do not push or pull the vehicle to start it. See instructions for "Jump starting".
If engine turns over normally but
does not start1. Check fuel level.
2. With the ignition switch in the LOCK position, check all connectors at igni-
tion coils and spark plugs. Reconnect
any that may be disconnected or
loose.
3. If the engine still does not start, call an authorized HYUNDAI dealer or seek
other qualified assistance.
IF THE ENGINE WILL NOT START
WARNING
If the engine will not start, do not
push or pull the vehicle to start it.
This could result in a collision or
cause other damage. In addition,
push or pull starting may cause the
catalytic converter to be over-
loaded and create a fire hazard.

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713
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
105,000 miles (168,000 km) or 84 months
❑Inspect air cleaner filter❑Inspect vacuum hose❑Inspect air conditioning refrigerant❑Inspect brake hoses and lines❑Inspect drive shafts and boots❑Inspect electronic throttle control❑Inspect exhaust pipe and muffler❑Inspect front disc brake/pads, calipers and rotors❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint❑ Inspect suspension mounting bolts❑Inspect drive belt (auto-tensioner, generator, p/str'g, a/con, w/pump)
(First, 60,000 miles (96,000 km) or 48 months
after every 15,000 miles (24,000 km) or 12 months)❑ Replace climate control air filter (for evaporator and blower unit)❑Replace spark plugs (iridium coated)❑Replace engine oil and filter
(105,000 miles (168,000 km) or 168 months)
112,500 miles (180,000 km) or 90 months
❑ Inspect air cleaner filter❑Inspect vacuum hose❑Inspect manual transaxle fluid (if equipped)❑Replace engine oil and filter
(112,500 miles (180,000 km) or 180 months)

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717
Maintenance
MAINTENANCE UNDER SEVERE USAGE CONDITIONSSEVERE DRIVING CONDITIONS
A - Repeatedly driving short distance of less than 5 miles (8 km) in normal tem-perature or less than 10 miles (16 km) in freezing temperature
B - Extensive engine idling or low speed driving for long distances
C - Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads
D - Driving in areas using salt or other corrosive materials or in very cold weather
E - Driving in sandy areas F - Driving in heavy traffic area over 90°F (32°C)
G - Driving on uphill, downhill, or mountain road
H - Towing a Trailer, or using a camper, or roof rack
I - Driving as a patrol car, taxi, other commercial use or vehicle towing
J - Driving over 106 mph (170 km/h)
K - Frequently driving in stop-and-go conditionsThe following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart
below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEM
MAINTENANCE
OPERATION
MAINTENANCE INTERVALS
DRIVING CONDITION
ENGINE OIL AND FILTER
R
EVERY 3,750 MILES (6,000 KM) OR 6 MONTHS
A, B, C, D, E, F, G, H, I, K
AIR CLEANER FILTER
R
MORE FREQUENTLY
C, E
SPARK PLUGS
R
MORE FREQUENTLY
B, H
AUTOMATIC TRANSAXLE FLUID
R
EVERY 60,000 MILES (96,000 KM)
A, C, E, F, G, I
MANUAL TRANSAXLE FLUID
R
EVERY 75,000 MILES (120,000 KM)
A, C, E, F, G, I
FRONT DISC BRAKE/PADS, CALIPERS AND ROTORS
I
MORE FREQUENTLY
C, D, G, H
REAR DISC BRAKE/PADS, PARKING BRAKE
I
MORE FREQUENTLY
C, D, G, H
STEERING GEAR BOX, LINKAGE & BOOTS/
LOWER ARM BALL JOINT, UPPER ARM BALL JOINT
I
MORE FREQUENTLY
C, D, E, F, G, H, I
DRIVE SHAFTS AND BOOTS
I
EVERY 7,500 MILES (12,000 KM) OR 6 MONTHS
C, D, E, F, G, H, I, J
CLIMATE CONTROL AIR FILTER
(FOR EVAPORATOR AND BLOWER UNIT)
R
MORE FREQUENTLY
C, E

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719
Maintenance
Air cleaner filterA Genuine HYUNDAI air cleaner filter is
recommended when the filter is
replaced.Spark plugsMake 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 authorized HYUNDAI dealer should
perform the operation.Cooling systemCheck cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
CoolantThe 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 authorized HYUNDAI
dealer in accordance to the scheduled
maintenance at the beginning of this
chapter.✽NOTICEAutomatic transaxle fluid color 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 color.
Brake hoses and linesVisually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.Brake/clutch fluidCheck brake fluid level in the brake fluid
reservoir. The level should be between
“MIN” and “MAX” marks on the side of
the reservoir. Use only hydraulic brake
fluid conforming to DOT 3 or DOT 4
specification.
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 andcapacities” in section 8.)

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