2015 Hyundai Elantra radiator cap

Your vehicle at a glance
6 2
ENGINE COMPARTMENT
OMD071047R
❈The actual engine compartment in the vehicle may differ from the illustration.1. Engine oil filler cap ............................7-24
2. Engine oil dipstick..............................7-23
3. Brake/clutch fluid reservoir ................7-29
4. Positive battery terminal ....................7-37
5. Negative battery terminal ..................7-37
6. Fuse box ............................................7-53
7. Air cleaner .........................................7-31
8. Radiator cap ......................................7-28
9. Engine coolant reservoir....................7-26
10. Windscreen washer fluid reservoir ..7-30
■■Petrol Engine (1.8L)

429
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. Stop the engine.
2. Pull the fuel filler door opener up.3. Pull the fuel filler door out (1) to
fully open.
4. To remove the fuel tank cap (2),
turn it anticlockwise. You may hear
a hissing noise as the pressure
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 fuel tank cap, turn it
clockwise until it “clicks” once. This
indicates that the cap is securely
tightened.
2. Close the fuel filler door and push
it lightly and make sure that it is
securely closed.
FUEL FILLER DOOR
OMD040025
OMD041024R

449
Features of your vehicle
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.
OMD044048K
OMD044048
■Type A
■Type BWARNING
Never remove the radiator cap
when the engine is hot. The
engine coolant is under pres-
sure 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.
OMD044049K
OMD044050
■Type A
■Type B

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 bonnet, stop the
engine. Do not open the bonnet
until the coolant has stopped run-
ning 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 oper-
ating. 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
we recommend that you call an
authorised HYUNDAI dealer for
assistance.
IF THE ENGINE OVERHEATS
What to do in an emergency
8 6
WARNING
Whilst 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 whilst 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
anticlockwise slowly to the first
stop. Step back whilst the pres-
sure is released from the cool-
ing system. When you are sure
all the pressure has been
released, press down on the
cap, using a thick towel, and
continue turning anticlockwise
to remove it.

73
Maintenance
ENGINE COMPARTMENT
OMD071047R
❈The actual engine compartment 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. Windscreen washer fluid reservoir
* : if equipped
■■Petrol Engine (1.8L)

721
Maintenance
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Manual transaxle fluid
(if equipped)
Inspect the manual transaxle fluid
according to the maintenance sched-
ule.
Automatic transaxle fluid
(if equipped)
Automatic transaxle fluid should not
be checked under normal usage
conditions.
We recommend that the automatic
transaxle fluid changed by an autho-
rised HYUNDAI dealer according to
the maintenance schedule.
✽NOTICE
Automatic transaxle fluid colour is
basically red.
As the vehicle is driven, the auto-
matic transaxle fluid will begin to
look darker.
It is a normal condition and you
should not judge the need to replace
the fluid based upon the changed
colour.
CAUTION
The use of a non-specified fluid
could result in transaxle mal-
function and failure.
Use only specified automatic
transaxle fluid. (Refer to
“Recommended lubricants and
capacities” in section 8.)

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 travelling to a colder cli-
mate.Checking the coolant level(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
anticlockwise slowly to the
first stop. Step back whilst 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 anticlock-
wise to remove it.
• Even if the engine is not oper-
ating, do not remove the radi-
ator cap or the drain plug
whilst the engine and radiator
are hot. Hot coolant and
steam may still blow out
under pressure, causing seri-
ous injuries.
WARNING
Removing radiator
cap
• Never attempt to remove the
radiator cap whilst 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)
CAUTION
• Do not drive with no engine
coolant. It may cause water
pump failure and engine
seizure, etc.
• 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.

Maintenance
28 7
Changing the coolant
We recommend that the coolant be
replaced by an authorised HYUNDAI
dealer.
WARNING
Radiator cap
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot coolant and
steam may blow out under pres-
sure causing serious injuries.
OMD071005L
CAUTION
Put a thick cloth or fabric
around the radiator cap before
refilling the coolant in order to
prevent the coolant from over-
flowing into engine parts such
as the alternator.
WARNING -Coolant
• Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
• Radiator coolant can severely
obscure visibility when
sprayed on the windscreen
and may cause loss of vehicle
control or damage to paint
and body trim.