2018 Hyundai Elantra engine

7-19
7
Maintenance
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Checking the Engine Oil Level
1. Follow all of the oil manufacturer’s pre-
cautions.
2. Be sure the vehicle is on the level ground in P (Park) with the parking
brake set. If possible, block the
wheels.
3. Turn the engine on and allow the engine to reach normal operating tem-
perature.
4. Turn the engine off and wait about five minutes for the oil to return to the oil
pan.
5. Pull the dipstick out, wipe it clean, and re-insert it fully.
6. Pull the dipstick out again and checkthe level. The level should be between
F and L.
7. If it is near or at L, add enough oil to bring the level to F. To prevent damage to your engine:
Do not overfill with engine oil. Add
oil in small quantities and recheck
level to ensure engine is not over-
filled.
Do not spill engine oil when adding or changing engine oil. Use a funnel
to help prevent oil from being
spilled on engine components. Wipe
off spilled oil immediately.
NOTICE
OAD076121
OAD075062L
■ 1.6 T-GDI
■2.0 MPI

7-20
Maintenance
Use only the specified engine oil
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
Checking the Engine Oil and
Filter
Have engine oil and filter changed by an
authorized HYUNDAI dealer according to
the Maintenance Schedule at the begin-
ning of this chapter.
NOTICE
CALIFORNIA PROPOSITION 65
WARNING
Engine oil contains chemicals
known to the State of California to
cause cancer, birth defects and
reproductive harm. Used engine oil
may cause irritation or cancer of
the skin if left in contact with the
skin for prolonged periods of time.
Always protect your skin by wash-
ing your hands thoroughly with
soap and warm water as soon as
possible after handling used oil.
WARNING
OAD076122
OAD075063L
■1.6 T-GDI
■2.0 MPI

7-21
7
Maintenance
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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 the
beginning of the winter season and
before traveling to a colder climate.Checking the Engine Coolant
Level
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 the F and the L marks on the
side of the coolant reservoir when the
engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring the
level to the F mark, but do not overfill. If
frequent additions are required, we rec-
ommend that you see an authorized
HYUNDAI dealer for a cooling system
inspection.
Recommended engine coolant
When adding coolant, use only deion-
ized water, distilled 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 severe malfunction or engine dam-
age.
The engine in your vehicle has alu- minum engine parts and must be pro-
tected by an ethylene-glycol with phos-
phate based coolant to prevent corro-
sion and freezing.
Do not use alcohol or methanol coolant or mix them with the specified 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.OAD076125
OAD075008
■ 1.6 T-GDI
■2.0 MPI

7-22
Maintenance
For mixing percentage, refer to the fol-
lowing table:
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the easi-
est to mix together as it will be the same
quantity of each. It is suitable to use for
most temperature ranges of
- 31°F and higher.The electric motor for the cooling fan is
controlled by engine coolant tempera-
ture, refrigerant pressure and vehicle
speed. As the engine coolant tempera-
ture decreases, the electric motor will
automatically shut off. This is a normal
condition. If your vehicle is equipped with
GDI, the electric motor for the cooling fan
may begin to operate at any time and
continue to operate until you disconnect
the negative battery cable.
i
Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Never remove the radia-
tor cap or the drain plug
while the engine and
radiator are hot. Hot
coolant and steam may
blow out under pressure, causing
serious injury.
Turn the engine off and wait until
the engine cools down. Use
extreme care when removing the
radiator cap. Wrap a thick towel
around it, and turn it counterclock-
wise slowly to the first stop. Step
back while the pressure is released
from the cooling system.
(Continued)
WARNING
(Continued)
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.
OAD075009
The electric motor for
the cooling fan may
continue to operate or
start up when the
engine is not running
and can cause serious injury. Keep
hands, clothing and tools away
from the rotating fan blades of the
cooling fan.
WARNING

7-23
7
Maintenance
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Changing Engine Coolant
Have coolant changed by an authorized
HYUNDAI dealer according to the
Maintenance Schedule at the beginning
of this chapter.
To prevent damage to engine parts,
put a thick towel around the radiator
cap before refilling the coolant to pre-
vent the coolant from overflowing into
engine parts, such as the generator.
Checking the Brake/Clutch
Fluid Level
Check the fluid level in the reservoir peri-
odically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap and
adding brake/clutch fluid, clean the area
around the reservoir cap thoroughly to
prevent brake/clutch fluid contamination.
If the level is low, add the specified
brake/clutch fluid to the MAX level. The
level will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake/clutch linings.
If the fluid level is excessively low, have
the brake/clutch system checked by an
authorized HYUNDAI dealer.
NOTICE
Do not use engine coolant or
antifreeze in the washer fluid reser-
voir.
Engine coolant can severely
obscure visibility when sprayed on
the windshield and may cause loss
of vehicle control resulting in an
accident.
Engine coolant may also cause
damage to paint and body trim.
WARNING
If the brake system requires fre-
quent additions of fluid this could
indicate a leak in the brake system.
Have the vehicle inspected by an
authorized HYUNDAI dealer.
WARNING
Do not allow brake/clutch fluid to
come in contact with your eyes. If
brake/clutch fluid comes in contact
with your eyes, flush your eyes with
clean water for at least 15 minutes
and get immediate medical atten-
tion.
WARNING
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7-24
Maintenance
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Do not allow brake/clutch fluid to
contact the vehicle's body paint, as
paint damage will result.
Brake/clutch fluid, which has been exposed to open air for an extended
time should NEVER be used as its
quality cannot be guaranteed. It
should be disposed of properly.
Do not use the wrong kind of brake/clutch fluid. A few drops of
mineral based oil, such as engine
oil, in your brake/clutch system can
damage brake/clutch system parts.
Information
Use only the specified brake/clutch fluid
(refer to "Recommended Lubricants and
Capacities" in chapter 8).
Checking the Washer Fluid
Level
Check the fluid level in the washer fluid
reservoir and add fluid if necessary. 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.i
NOTICE
OAD075011
To prevent serious injury or death,
take the following safety precau-
tions when using washer fluid:
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when sprayed
on the windshield and may cause
loss of vehicle control resulting
in an accident or damage to paint
and body trim.
Do not allow sparks or flame to
contact the washer fluid or the
washer fluid reservoir. Washer
fluid may contain alcohol and can
be flammable.
Do not drink washer fluid and
avoid contact with skin. Washer
fluid is harmful to humans and
animals.
Keep washer fluid away from chil-
dren and animals.
WARNING

7-26
Maintenance
4. Lock the cover with the cover attach-ing clips.
Information
If the vehicle is operated in extremely
dusty or sandy areas, replace the element
more often than the usual recommended
intervals (refer to "Maintenance Under
Severe Usage Conditions" in this chapter).
Do not drive with the air cleaner fil-ter removed. This will result in
excessive engine wear.
When removing the air cleaner filter, be careful that dust or dirt does not
enter the air intake, or damage may
result.
Use HYUNDAI genuine parts, use of non-genuine parts could damage
the air flow sensor.
Filter Inspection
The climate control air filter should be
replaced according to the Maintenance
Schedule. If the vehicle is operated in
severely air-polluted cities or on dusty
rough roads for a long period, it should
be inspected more frequently and
replaced earlier. When you replace the
climate control air filter, replace it per-
forming the following procedure, and be
careful to avoid damaging other compo-
nents.
1. With the glove box open, remove thestoppers on both sides to allow the
glove box to hang freely on the hinges.
NOTICE
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OAD075018

7-30
Maintenance
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To prevent SERIOUS INJURY or
DEATH to you or bystanders,
always follow these precautions
when working near or handling the
battery:
Always read and follow
instructions carefully when
handling a battery.
Wear eye protection
designed to protect the
eyes from acid splashes.
Keep all flames, sparks, or
smoking materials away
from the battery.
Hydrogen is always present in battery cells, is highly
combustible, and may
explode if ignited.
Keep batteries out of reach
of children. (Continued)
WARNING (Continued)Batteries contain sulfuric
acid which is highly corro-
sive. Do not allow acid to
contact your eyes, skin or
clothing.
If acid gets into your eyes, flush
your eyes with clean water for at
least 15 minutes and get immediate
medical attention. If acid gets on
your skin, thoroughly wash the
area. If you feel pain or a burning
sensation, get medical attention
immediately.
When lifting a plastic-cased bat-
tery, excessive pressure on the
case may cause battery acid to
leak. Lift with a battery carrier or
with your hands on opposite cor-
ners.
Do not attempt to jump start your
vehicle if your battery is frozen.
NEVER attempt to recharge the
battery when the vehicle’s battery
cables are connected to the bat-
tery. (Continued)
(Continued)
The electrical ignition system
works with high voltage. NEVER
touch these components with the
engine running or when the
Engine Start/Stop button is in the
ON position.
Leaked battery electrolyte due to
repeated driving on sharp curves
(e.g. on circuits) may cause safe-
ty problem. Avoid repeated driv-
ing on sharp curves.
CALIFORNIA PROPOSITION 65
WARNING
Battery posts, terminals, and relat-
ed accessories contain lead and
lead compounds, chemicals known
to the State of California to cause
cancer, birth defects and reproduc-
tive harm. Batteries also contain
other chemicals known to the State
of California to cause cancer. Wash
hands after handling.
WARNING