2014 Hyundai Sonata coolant level

7-19
7
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.) (EXCEPT EUROPE)
I:Inspect and if necessary, adjust, correct, clean or replace.
R:Replace or change.
*8: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.
*9: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
Miles×1,0001020304050607080
Km×1,000153045607590105120
Cooling system
Inspect “Coolant level adjustment and leak” every day
At first, inspect 60,000 km (40,000 miles) or 48 months
after that, inspect every 30,000 km (20,000 miles) or 24 months
Engine coolant *8At first replace at 200,000 km (120,000 miles) or 10 years:
after that, replace every 40,000 km (25,000 miles) or 24 months *9
Battery conditionIIIIIIII
Brake lines, hoses and connectionsIIIIIIII
Brake pedal, Clutch pedal (if equipped)IIII
Par king brakeIIII
Brake/Clutch fluidIIIIIIII
Disc brakes and padsIIIIIIII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-30
Maintenance
ENGINE COOLANT
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant concentration level at least
once a year, at the beginning of the
winter season, and before traveling
to a colder climate.
Checking the coolant level
Removing radiator
cap
•Never attempt to remove the
radiator cap while the engine
is operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal
injury from escaping hot
coolant or steam.
(Continued)
WARNING
(Continued)
•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 while
the pressure is released from
the cooling system.
When you are sure all the
pressure has been released,
press down on the cap, using
a thick towel, and continue
turning counterclockwise to
remove it.
•Even if the engine is not oper-
ating, do not remove the radi-
ator cap or the drain plug
while the engine and radiator
are hot. Hot coolant and
steam may still blow out
under pressure, causing seri-
ous injury.
•When the engine overheats
from low engine coolant, sud-
denly adding engine coolant
may cause cracks in the
engine. To prevent damage,
add engine coolant slowly in
small quantities.
•Do not drive with no engine
coolant. It may cause water
pump failure and engine
seizure, etc.
CAUTION
OLF074007N

7-31
7
Maintenance
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.
The coolant level should be filled
between F (MAX) and L (MIN) marks
on the side of the coolant reservoir
when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) or soft water.
Bring the level to F (MAX), but do not
overfill.
If frequent additions are required, we
recommend that the system be
inspected by an authorized HYUNDAI
dealer.
Recommended engine coolant
•When adding coolant, use only
deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
•The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol-
based coolant to prevent corrosion
and freezing.
•DO NOT USE alcohol or methanol
coolant or mix them with the spec-
ified coolant.
•Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of the
solution.
OLF074006N
The electric motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure
and vehicle speed. It may some-
times operate even when 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.
The electric motor (cooling fan)
may operate until you discon-
nect the negative battery cable.
WARNING

7-35
7
Maintenance
WASHER FLUID
Checking the washer fluid
level
The reservoir is translucent so that
you can check the level with a quick
visual inspection.
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary.
Plain water may be used if washer
fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
OLF074009N
Coolant
•Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
•Radiator coolant can severely
obscure visibility when sprayed
on the windshield and may
cause loss of vehicle control or
damage to paint and body trim.
•Windshield Washer fluid
agents contain some amounts
of alcohol and can be flamma-
ble under certain circum-
stances. Do not allow sparks
or flame to contact the washer
fluid or the washer fluid reser-
voir. Damage to the vehicle or
occupants could occur.
•Windshield washer fluid is
poisonous to humans and
animals. Do not drink and
avoid contacting windshield
washer fluid. Serious injury or
death could occur.
CAUTION