2016 Hyundai Elantra Coupe radiator cap

Your vehicle at a glance
6 2
ENGINE COMPARTMENT
OMD070047N
❈The actual engine compartment in the vehicle may differ from the illustration.1. Engine oil filler cap ............................7-25
2. Engine oil dipstick..............................7-24
3. Brake/clutch fluid reservoir ................7-25
4. Positive battery terminal ....................7-37
5. Negative battery terminal ..................7-37
6. Fuse box ............................................7-60
7. Air cleaner .........................................7-31
8. Radiator cap ......................................7-26
9. Engine coolant reservoir....................7-37
10. Windshield washer fluid reservoir ....7-30

431
Features of your vehicle
Opening the fuel filler door
The fuel filler door must be opened
from inside the vehicle by pulling up
the fuel filler door opener.
1. Turn the engine off.
2. Pull the fuel filler door opener up
located on the floor, left side of the
driver’s seat.3. Pull the fuel filler door out (1) to
fully open.
4. To remove the fuel tank cap (2),
turn it counterclockwise. You may
hear a hissing noise as the pres-
sure inside the tank equalizes.
5. Place the cap on the fuel filler
door.
✽NOTICE
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the door to break
the ice and release the door. Do not
pry on the door. If necessary, spray
around the door with an approved de-
icer fluid (do not use radiator anti-
freeze) or move the vehicle to a warm
place and allow the ice to melt.
Closing the fuel filler door
1. To install the cap, turn it clockwise
until it clicks one time.
2. Close the fuel filler door until it is
latched securely.
FUEL FILLER DOOR
OMD044025
OMD040024

Features of your vehicle
54 4
Engine Coolant Temperature
Gauge
This gauge shows the temperature
of the engine coolant when the igni-
tion switch is in the ON position.
Fuel Gauge
This gauge indicates the approxi-
mate amount of fuel remaining in the
fuel tank.WARNING
Never remove the radiator cap
when the engine is hot. The
engine coolant is under pressure
and could cause severe burns.
Wait until the engine is cool
before adding coolant to the
reservoir.
CAUTION
If the gauge pointer moves
beyond the normal range area
toward the “H” position, it indi-
cates overheating that may
damage the engine.
Do not continue driving with an
overheated engine. If your vehi-
cle overheats, refer to “If the
Engine Overheats” in chapter 6.
OMD044048N-1
OMD044049N

If your temperature gauge indicates
overheating, you experience a loss
of power, or hear loud pinging or
knocking, the engine may be over-
heating. If this happens, you should:
1.Pull off the road and stop as soon
as it is safe to do so.
2.Place the shift lever in P (Park, for
automatic transaxle vehicle) or
neutral (for manual transaxle vehi-
cle) and set the parking brake. If
the air conditioning is ON, turn it
OFF.
3.If engine coolant is running out
under the vehicle or steam is com-
ing out from the hood, stop the
engine. Do not open the hood until
the coolant has stopped running or
the steaming has stopped. If there
is no visible loss of engine coolant
and no steam, leave the engine
running and check to be sure the
engine cooling fan is operating. If
the fan is not running, turn the
engine off.4.Check for coolant leaking from the
radiator, hoses or under the vehi-
cle. (If the air conditioning had
been in use, it is normal for cold
water to be draining from it when
you stop.)
5.If engine coolant is leaking out,
stop the engine immediately and
call an authorized HYUNDAI deal-
er for assistance.
IF THE ENGINE OVERHEATS
What to do in an emergency
8 6
WARNING
While the engine is
running, keep hands,
clothing and tools
away from the moving
parts such as the
cooling fan and drive
belt to prevent seri-
ous injury.
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.
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.

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

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.

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

Specifications & Consumer information
4 8
RECOMMENDED LUBRICANTS AND CAPACITIES
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
LubricantVolumeClassification
Engine oil *1*2 (drain and refill)
Recommends
Nu 2.0/
Nu 1.84.0 l(4.23 US qt.)API Service SM*3, ILSAC GF-4 or above
Manual transaxle fluid1.9 l(2.01 US qt.)API GL-4, SAE 75W/85
Automatic transaxle fluid7.3 l(7.71 US qt.)MICHANG ATF SP-4, SK ATF SP-4
NOCA ATF SP-4, HYUNDAI genuine ATF SP-4
Coolant
Manual
transaxle6.0 l(6.34 US qt.)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Automatic
transaxle5.9 l(6.23 US qt.)
Brake fluid0.7~0.8l(0.7~0.8 US qt.)FMVSS116 DOT-3 or DOT-4
FuelNu 2.050l(13.2 US gal.)-Nu 1.848l(12.68 US gal.)
*1Refer to the recommended SAE viscosity numbers on the next page.
*
2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econ-
omy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure
in everyday driving, but in a year’s time, they can offer significant cost and energy savings.
*
3If the API service SM engine oil is not available in your country, you are able to use API service SL.