engine coolant Hyundai Elantra Coupe 2016 User Guide

What to do in an emergency
32 6
BASIC TROUBLESHOOTING GUIDE
Engine overheatingO
Low fuel levelOO
Fuel lines cloggedOO
Fuel pump defectiveOO
Strainer cloggedOO
Rich mixtureOOO
Water intrusion into fuelOOO
Coolant leakageO
High idle speedO
Engine oil insufficient or defectiveOO
Battery fluid shortageOO
Battery dischargedOOO
Battery terminal poor contactOO
Starter or ignition switch malfunctionO
Ignition timing incorrectOOO
Spark plugs deterioratedOO
Spark plugs defectiveO
Starter won't function
Engine turns over but
will not start
Engine misfires
Engine overheats
Engine stops while
driving
Fuel consumption is
excessive
Brake pedal is spongy
Braking power is
insufficient
Steering wheel is heavy
Steering wheel shakesSteering wheel pulls to
one side while drivingVehicle pulls to one
side while braking
Tire wear is abnormalCharge warning light\
comes on while drivingWipers, horn or lights
won't funciton
Battery discharge is
excessive
SYMPTOM
PROBABLE CAUSE

Maintenance
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 7-4
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
• Owner maintenance schedule. . . . . . . . . . . . . . . . . . . . 7-7
Scheduled maintenance services . . . . . . . . . . . . . . . 7-8
Explanation of scheduled maintenance items . . . 7-20
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 7-24
• Checking the engine oil and filter . . . . . . . . . . . . . . . 7-25
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
• Checking the engine coolant level . . . . . . . . . . . . . . . 7-26
• Changing engine coolant. . . . . . . . . . . . . . . . . . . . . . . 7-28
Brake/clutch fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
• Checking the brake/clutch fluid level . . . . . . . . . . . . 7-29
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 7-30
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 7-30
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
Climate control air cleaner . . . . . . . . . . . . . . . . . . 7-32
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-37
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 7-38
• Battery recharging . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39
• Reset features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
• Recommended cold tire inflation pressures . . . . . . . 7-42
• Check tire inflation pressure . . . . . . . . . . . . . . . . . . . 7-43
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 7-45
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
• Tire terminology and definitions . . . . . . . . . . . . . . . . 7-51
• All season tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54
• Summer tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54
• Snow tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54
• Radial-ply tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
• Low aspect ratio tires . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
7

73
Maintenance
ENGINE COMPARTMENT
OMD070047N
❈The actual engine room in the vehicle may differ from the illustration.1. Engine oil filler cap
2. Engine oil dipstick
3. Brake/clutch* fluid reservoir
4. Positive battery terminal
5. Negative battery terminal
6. Fuse box
7. Air cleaner
8. Radiator cap
9. Engine coolant reservoir
10. Windshield washer fluid reservoir
* : if equipped

77
Maintenance
Owner maintenance schedule
When you stop for fuel:
• Check the engine oil level.
• Check coolant level in the engine
coolant reservoir.
• Check the windshield washer fluid
level.
• Check for low or under-inflated
tires
While operating your vehicle:
• Note any changes in the sound of
the exhaust or any smell of
exhaust fumes in the vehicle.
• Check for vibrations in the steering
wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
• Notice if your vehicle constantly
turns slightly or “pulls” to one side
when traveling 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
operation of your transaxle occurs,
check the transaxle fluid level.
• Check the automatic transaxle P
(Park) function.
• Check the parking brake.
• Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
• Check coolant level in the engine
coolant reservoir.
• Check the operation of all exterior
lights, including the stoplights, turn
signals and hazard warning flash-
ers.
• Check the inflation pressures of all
tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
• Check for loose wheel lug nuts.
WARNING
Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of the
opening and cause serious
burns and other injuries.

Maintenance
16 7
NORMAL MAINTENANCE SCHEDULE (CONT.)
192,000 km or 96 months
❑Rotate tire
❑Inspect battery condition
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads (if equipped)
❑Inspect rear brake drums/linings (if equipped)
❑Inspect steering gear box, linkage &
boots/lower arm ball joint, upper arm ball joint
❑Inspect suspension mounting bolts
❑Inspect brake/clutch (if equipped) fluid
❑Inspect fuel filter *1
❑Inspect fuel tank, fuel filler cap, canister, vapor hose, fuel line,
fuel hoses and connections of each part
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect drive belts *2
(First, 96,000 km or 72 months after every 24,000 km or 24 months)
❑Inspect cooling system hose and connections
❑Inspect brake/clutch (if equipped) pedal free play
❑Inspect brake lines and connections (including booster)
❑Inspect all latch, hinges and locks
❑Replace climate control air filter (for evaporator and blower unit)
(Continued)
❈Inspect : Inspect and if necessary, adjust, correct, clean or replace.
*1: Fuel filter & Fuel tank air filter are considered to be maintenance free but
periodic inspection is recommended for this maintenance schedule depends
on fuel quality. If there are some important safety matters like fuel flow
restriction, surging, loss of power, hard starting problem, etc. replace the fuel
filter immediately regardless of maintenance schedule and consult an
authorized HYUNDAI dealer for details.
*
2: The drive belt should be replaced when cracks occur or tension is reduced
excessively.
*
3: If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized HYUNDAI dealer
along with information on how to use them. Do not mix other additives.
NOTE: Inspect wheel alignment when abnormal condition noted.
204,000 km or 102 months
❑Rotate tire
❑Inspect battery condition
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect cooling system hose and connections
❑Inspect brake/clutch (if equipped) pedal free play
❑Replace engine oil and filter (204,000 km or 204 months)
❑Add fuel additive *3(204,000 km or 204 months)
(Continued)
❑Replace air cleaner filter
❑Replace coolant
(First, 192,000 km or 120 months after every 48,000 km or 24 months)
❑Replace engine oil and filter (192,000 km or 192 months)
❑Add fuel additive *3(192,000 km or 192 months)

Maintenance
18 7
240,000 km or 120 months
❑Rotate tire
❑Inspect battery condition
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads (if equipped)
❑Inspect rear brake drums/linings (if equipped)
❑Inspect steering gear box, linkage &
boots/lower arm ball joint, upper arm ball joint
❑Inspect suspension mounting bolts
❑Inspect brake/clutch (if equipped) fluid
❑Inspect fuel filter *1
❑Inspect fuel tank, fuel filler cap, canister, vapor hose, fuel line,
fuel hoses and connections of each part
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect manual transaxle fluid (if equipped)
❑Inspect drive belts *2
(First, 96,000 km or 72 months after every 24,000 km or 24 months)
❑Inspect cooling system hose and connections
(Continued)
NORMAL MAINTENANCE SCHEDULE (CONT.)
No check, No service required
❑Automatic transaxle fluid (if equipped)
❈Inspect : Inspect and if necessary, adjust, correct, clean or replace.
*1: Fuel filter & Fuel tank air filter are considered to be maintenance free but
periodic inspection is recommended for this maintenance schedule depends
on fuel quality. If there are some important safety matters like fuel flow
restriction, surging, loss of power, hard starting problem, etc. replace the fuel
filter immediately regardless of maintenance schedule and consult an
authorized HYUNDAI dealer for details.
*
2: The drive belt should be replaced when cracks occur or tension is reduced
excessively.
*
3: If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized HYUNDAI dealer
along with information on how to use them. Do not mix other additives.
NOTE: Inspect wheel alignment when abnormal condition noted.
(Continued)
❑Inspect brake/clutch (if equipped) pedal free play
❑Inspect brake lines and connections (including booster)
❑Inspect all latch, hinges and locks
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace air cleaner filter
❑Replace coolant
(First, 192,000 km or 120 months after every 48,000 km or 24 months)
❑Replace engine oil and filter (240,000 km or 240 months)
❑Add fuel additive *3(240,000 km or 240 months)

721
Maintenance
Vacuum crankcase ventilation
hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. 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 con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
Air cleaner filter
A genuine HYUNDAI air cleaner filter
is recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.

Maintenance
26 7
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 level at least once a year, at
the beginning of the winter season
and before traveling to a colder cli-
mate.Checking the engine coolant
level
WARNING
Never remove the
radiator cap or the
drain plug while the
engine and radiator
are hot. Hot coolant
and steam may blow out under
pressure, causing serious
injury.
(Continued)
OMD070005N-1
(Continued)
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing 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 counterclock-
wise to remove it.
WARNING
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.

727
Maintenance
The electric motor for the cooling fan
is controlled by engine coolant tem-
perature, refrigerant pressure and
vehicle speed. As the engine coolant
temperature 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.
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 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 recommend that you
see an authorized HYUNDAI dealer
for a cooling system inspection.Recommended engine coolant
• When adding coolant, use only
deionized 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 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.
OMD070004N

Maintenance
28 7
For mixing percentage, refer to the
following table:
✽NOTICE
If in doubt about the mix ratio, a
50% water and 50% antifreeze mix
is the easiest to mix together as it
will be the same quantity of each. It
is suitable to use for most tempera-
ture ranges of -31°F and higher.
Changing engine coolant
Have coolant changed by an author-
ized HYUNDAI dealer according to
the Maintenance Schedule at the
beginning of this chapter.CAUTION
To prevent damage to engine
parts, put a thick towel around
the radiator cap before refilling
the coolant to prevent the
coolant from overflowing into
engine parts, such as the gener-
ator.
WARNING
• 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 acci-
dent.
• Engine coolant may also
cause damage to paint and
body trim.
Ambient
TemperatureMixture Percentage
(volume)
Antifreeze Water
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40