cooling Hyundai Elantra 2018 User Guide

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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

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7
Maintenance
Fuse NameFuse rating Protected Component
MULTI
FUSE-1 MAIN 180A Fuse : ABS1, ABS2, B/ALARM HORN, POWER OUTLET
MDPS 80A MDPS Unit
MULTI
FUSE-2
B+5 60A PCB Block (Fuse : ECU3, ECU4, HORN, FUEL PUMP, ENGINE CONTROL RELAY)
B+2 60A Smart Junction Block (Fuse : S/HEATER FRT, ARISU)
B+3 60A Smart Junction Block (Fuse : ARISU, IPS)
B+4 50A Smart Junction Block (Fuse : S/HEATER FRT, P/WINDOW LH, P/WINDOW RH, TRUNK,
SUNROOF, AMP, P/SEAT DRV)
COOLING FAN 1 60A Not Used
REAR HEATED 50A Rear Heated Relay
BLOWER 40A Blower Relay
IG1 40A Ignition Switch, E/R Junction Block (PDM #2, #3 (ACC/IG1) Relay)
IG2 40A Ignition Switch, E/R Junction Block (PDM #4 (IG2) Relay, START Relay)
FUSE
B/UP LAMP 10A Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH, Smart Junction Block (IPS
Control Module)
POWER OUTLET 3 20A Cigarette Lighter
POWER OUTLET 2 20A Front Power Outlet
H/LAMP HI 10A Not Used
TCU 1 15A Not Used
VACUUM PUMP 1 20A Not Used
A/CON 10A A/Con Relay
COOLING FAN 2 40A Cooling Fan 1/2 Relay
B+1 40A Smart Junction Block (Leak Current Autocut Device, Fuse : BRAKE SWITCH, MODULE 1,
DR LOCK, PDM 1, PDM 2)
DCT1 40A Not Used

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Maintenance
Fuse NameFuse rating Protected Component
FUSE
DCT2 40A Not Used
B/ALARM HORN 10A B/Alarm Horn Relay
S/FUEL PUPMP 15A Not Used
ABS 1 40A ESC Module, Multipurpose Check Connector
ABS 2 30A ESC Module, Multipurpose Check Connector
POWER OUTLET 1 40A Power Outlet Relay
Fuse Name Fuse rating Protected Component
ECU 5 10A PCM
VACUUM PUMP 15A Not Used
SPARE 20A -
ABS 3 10A ESC Module, Multipurpose Check Connector
TCU 2 15A Transmission Range Switch, E/R Junction Block (Fuse : B/UP LAMP)
ECU 4 15A PCM
ECU 3 15A PCM
FUEL PUMP 20A Fuel Pump Relay
SENAOR 2 10A Canister Close Valve, Purge Control Solenoid Valve, Variable Intake Solenoid Valve, E/R Junction
Block (Cooling Fan 1/2 Relay)
ECU2 10A Not Used
ECU1 20A PCM
INJECTOR 15A Injector #1/#2/#3/#4
SENSOR 1 15A Oxygen Sensor (UP/DOWN)
IGN COIL 20A Ignition Coil #1/#2/#3/#4
SENSOR 3 10A Oil Control Valve #1/#2/#3, Electronic Thermo Sensor, Fuel Pump Relay
HORN 20A Horn Relay