cooling HYUNDAI ELANTRA 2023 User Guide

Emergency Situations8-6
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1. Pull off the road and stop as soon as it is safe to do so.
2. Put the vehicle in P (Park), 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 coming 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.
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 serious
injury. 4. Check to see if the water pump drive
belt is missing.
(1) If it is not missing, check to see that it is tight.
(2) If the drive belt seems to be satisfactory, check for coolant leaking
from the radiator, hoses or under
the vehicle. (If the air conditioning
had been in use, it is normal for cold
water to be draining from it when you
stop.)
5. If the water pump drive belt is broken or engine coolant is leaking out, stop
the engine immediately and call
an authorized HYUNDAI dealer for
assistance.
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 removing 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
counterclockwise to remove it.
IF THE ENGINE OVERHEATS

08
8-7
6. If you cannot find the cause of the overheating, wait until the engine
temperature has returned to normal.
Then, if coolant has been lost,
carefully add coolant to the reservoir
to bring the fluid level in the reservoir
up to the halfway mark.
7. Proceed with caution, keeping alert for further signs of overheating. If
overheating happens again, call
an authorized HYUNDAI dealer for
assistance.NOTICE

[Serious loss of coolant indicates a
leak in the cooling system and have
system be checked by an authorized
HYUNDAI dealer.

[ When the engine overheats from
low engine coolant, suddenly adding
engine coolant may cause cracks
in the engine. To prevent damage,
add engine coolant slowly in small
quantities.

Maintenance9-14
Engine Oil and Filter
The engine oil and filter should be
changed at the intervals specified in the
maintenance schedule. If the vehicle
is being driven in severe conditions,
more frequent oil and filter changes are
required.
Drive Belts
Inspect all drive belts for evidence
of cuts, cracks, excessive wear or oil
saturation and replace if necessary. Drive
belts should be checked periodically
for proper tension and adjusted as
necessary.
Fuel Filter
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause the hard
starting. When a considerable amount
of foreign substances are accumulated
in the fuel tank, the fuel filter should be
replaced.
Upon installing a new fuel filter, operate
the engine for several minutes, and
check the connections for any leakages.
Fuel filters should be installed by an
authorized HYUNDAI dealer.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and damage.
Have an authorized HYUNDAI dealer
replace any damaged or leaking parts
immediately.
Vapor Hose and Fuel Filler Cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
a new vapor hose or fuel filler cap is
correctly replaced.
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.
When assembling parts, be sure to
wipe out foreign substances inside
and outside of the boot bottom of the
ignition coil and the insulator of the
spark plug with a soft cloth to prevent
contamination of the spark plug
insulator.
Cooling System
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

Maintenance9-16
Checking the Engine Oil Level
Engine oil is used for lubricating,
cooling, and operating various hydraulic
components in the engine. Engine oil
consumption while driving is normal,
and it is necessary to check and refill the
engine oil regularly. Also, check and refill
the oil level within the recommended
maintenance schedule to prevent
deterioration of oil performance.
Check the engine oil following the below
procedure.
1. Follow all of the oil manufacturer’s precautions.
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
temperature.
4. Turn the engine off and wait about fifteen minutes for the oil to return to
the oil pan.
5. Wipe the dipstick clean and re-insert it fully.
OCN7080066L
„Smartstream G2.0
OCN7N080002
„Smartstream G1.6 T-GDi
6. Pull the dipstick out again and check the level.
ENGINE OIL

09
9-19
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 climate.
NOTICE

[When the engine overheats from
low engine coolant, suddenly adding
engine coolant may cause cracks
in the engine. To prevent damage,
add engine coolant slowly in small
quantities.

[ Do not drive with no engine coolant.
It may cause water pump failure and
engine seizure, etc.
Checking the Engine Coolant
Level
OCN7080004
OCN7N080005
„Smartstream G1.6 T-GDi
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, see an
authorized HYUNDAI dealer for a cooling
system inspection.
ENGINE COOLANT

09
9-21
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.
The electric motor for the cooling
fan is controlled by engine coolant
temperature, refrigerant pressure and
vehicle speed. As the engine coolant
temperature decreases, the electric
motor will automatically shut off. This is a
normal condition.
Changing Engine Coolant
Have coolant changed by an authorized
HYUNDAI dealer according to the
Maintenance Schedule at the beginning
of this chapter.
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 accident.
Engine coolant may also cause damage
to paint and body trim.
NOTICE
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 alternator.

09
9-49
Driver’s side fuse panel
Fuse NameFuse Rating Circuit Protected
MEMORY1 10
AInstrument Cluster, A/C Controller, A/C Control Module,
DRV/PASS Folding Outside Mirror
AIR BAG2 10A SRS Control Module
MODULE4 10ALane Keeping Assist Unit (LINE), Crash Pad Switch, IBU,
A/T Shift Lever Indicator, Front Console Switch
MODULE7 7.5AIAU, Cooling fan controller (N Line only), Rear Seat
Warmer Control Module
START 7.5ABurglar Alarm Relay, Transaxle Range Switch, PCM/
ECM IBU, E/R Junction Block (Start Relay) (Smartstream
G 2.0 Atkinson only)
CLUSTER 7.5A Instrument Cluster
IBU2 7.5A IBU
A/C1 7.5AE/R Junction Block (PTC Heater Relay, Blower Relay),
A/C Control Module, A/C Controller
TRUNK 10A Trunk Lid Latch
S/HEATER FRT 20A Front Seat Warmer Control Module
P/WINDOW LH 25A Power Window Main Switch
MULTIMEDIA 15AAudio, A/V & Navigation Head Unit, DC-DC Converter
(Smartstream G 2.0 Atkinson ISG only)
FCA 10A Forward Collision Avoidance Assist Unit
MDPS *
17.5A MDPS Unit
MODULE6 7.5A IBU
S/HEATER RR 20A Rear Seat Warmer Control Module
SAFETY P/
WINDOW DRV 25A Driver Safety Power Window Module
P/WINDOW RH 25APower Window Main Switch, Passenger Power Window
Switch
BRAKE SWITCH 10A Stop Lamp Switch, IBU
IBU1 15A IBU
*1 : MDPS (Motor Driven Power Steering) is the same as EPS (Electric Power Steering)

Maintenance9-52
Engine compartment fuse panel
Type Fuse Name Fuse Rating Circuit Protected
MULTI
FUSE
-3 ALT
150A
180A [Smartstream G 2.0 Atkinson with AMS2]
Alternator, (Fuse - ABS1, ABS2, EOP1, POWER
OUTLET1)
[Smartstream G 2.0 Atkinson & Smartstream
G1.6 T-GDi without AMS2] Alternator, (Fuse -
ABS1, ABS2, POWER OUTLET1)
MDPS1 80A MDPS Unit
MULTI
FUSE-2 COOLING
FAN2 60A [G4FP] Cooling Fan Controller
DCT3 40A [G4FP] SGA
MULTI
FUSE-1 B+5
60APCB Block (Engine Control Relay, Fuse -
ECU3, ECU4, HORN, WIPER, A/C)
B+1 60AICU Junction Block (IPS2/IPS5/IPS6/IPS7/
IPS14)
B+2 60AICU Junction Block (IPS1/IPS4/IPS8/IPS9/
IPS10)
B+3 50AICU Junction Block (Fuse - TRUNK, AMP,
SAFETY P/WINDOW DRV, P/SEAT DRV, P/
SEAT PASS, S/HEATER FRT, S/HEATER RR,
Long Term Load Latch Relay)
EPB 60A ESC Control Module
PTC HEATER 50A PTC HEATER
BLOWER 40ABLOWER Motor, Multipurpose Check
Connector
IG1 40AE/R Junction Block (PDM (IG1/ACC) Relay),
Ignition Switch
IG2 40AE/R Junction Block (PDM (IG2) Relay, Start
Relay), Ignition Switch

09
9-53
Engine compartment fuse panel
Type Fuse NameFuse Rating Circuit Protected
FUSE POWER
OUTLET2 20
A Front Power Outlet
POWER
OUTLET3 20A Not Used
COOLING FAN1 40A
Cooling Fan (Smartstream G 2.0 Atkinson
only)
DCT1 40A [G4FP] TCM
DCT2 40A [G4FP] TCM
REAR
HEATED 40A Rear Glass Heated
B+4 40AICU Junction Block (Fuse - AIR BAG2,
IBU1, BRAKE SWITCH, DOOR LOCK, IAU,
MODULE1, SUNROOF,Power Window Relay)
AMS 10A Battery Sensor
TCU1 10A [DCT] TCM, [M/T] Ignition Lock
FUEL PUMP 20AFuel Pump Control Module (T-GDI), Fuel
Pump Motor (NU MPI AKS)
CVVD 40A [G4FP] CVVD Actuator
ABS1 40AABS Control Module, ESC Control Module,
Multipurpose Check Connector
ABS2 30AABS Control Module, ESC Control Module,
Multipurpose Check Connector
EOP1 30AElectronic Oil Pump (Smartstream G 2.0
Atkinson ISG only)
POWER
OUTLET1 40A P/OUTLET FRT

Maintenance9-54
Engine compartment fuse panel
Fuse Name Fuse Rating Circuit Protected
WIPER 25A
Wiper Motor
ECU4 15A PCM/ECM
A/C 10A[G4FM] A/C Compressor (Smartstream G 2.0 Atkinson
only)
HORN 15A Horn
IGN COIL 20A Ignition Coil #1~#4
ECU3 15A PCM/ECM
SENSOR3 10A E/R Junction Block (Fuel Pump Relay)
ECU2 10A PCM/ECM (Smartstream G1.6 T-GDi only)
SENSOR2 10A[G4NS] Variable Intake Solenoid Valve, Oil Pump
Solenoid Valve, Oil Control Valve #1/#2, Canister Close
Valve, Purge Control Solenoid Valve,
PCB Block (A/C Relay), E/R Junction Block (Cooling
Fan1/2 Relay)
[G4FP] Variable Oil Pump Solenoid, Oil Control Valve
#1/#2, Purge ControL Solenoid Valve, RCV Control
Solenoid Valve, CanisteR Close Valve
ECU5 10ACVVD Actuator (Smartstream G1.6 T-GDi only), ECM/
PCM, Ignition Lock
SENSOR1 15A Oxygen Sensor (UP/DOWN)
ABS3 10AABS Control Module, ESC Control Module, Multipurpose
Check Connector
INJECTOR 15A[G4FM/G4FG/G4NA] Injector #1~#4 (Smartstream G 2.0
Atkinson only)
ECU1 20A PCM/ECM
TCU2 15ATransaxle Range Switch, [G4FP] TCM (Smartstream G1.6
T-GDi & DCT only)