cooling HYUNDAI ACCENT 2021 User Guide

7-14
Maintenance
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.
Intelligent Variable
Transmission (IVT) Fluid
(if equipped)
Intelligent Variable Transmission
(IVT) Fluid should not be checked
under normal usage conditions. But,
the Intelligent Variable Transmission
(IVT) Fluid should be changed under
severe usage conditions. We recom-
mend that the Intelligent Variable
Transmission (IVT) Fluid changed by
an authorized HYUNDAI dealer
according to the maintenance sched-
ule.
(Refer to "Maintenance Under
Severe Usage Conditions" in this
chapter.)
Intelligent variable transmission
(IVT) fluid color is basically light
amber.
As the vehicle is driven, the intelli-
gent variable transmission (IVT)
fluid will begin to look darker. This
is a normal condition and you
should not judge the need to
replace the fluid based upon the
changed color.
NOTICE
The use of non-specified fluid
(even marked as compatible
with genuine) could result in
shift quality deterioration and
vibrations, and eventual trans-
mission failure.
Use only specified Intelligent
Variable Transmission (IVT)
fluid. (Refer to "Recommended
lubricants and capacities" in
chapter 8.)
CAUTION
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7-18
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 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
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.
Recommended engine coolant
When adding coolant, use only dis-
tilled (deionized) 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
with phosphate based coolant to
prevent corrosion and freezing.
Do not use alcohol or methanol
coolant or mix them with the spec-
ified coolant.
OHCA079075
■Smartstream G1.6
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7-19
7
Maintenance
Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of the
solution.
For mixing percentage, refer to the
following table:
Information
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 temperature ranges of
- 31°F and higher.
i
Ambient
TemperatureMixture 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 engine
coolant reser-
voir tank/radia-
tor cap or the
drain plug while
the engine and
radiator are hot. Hot coolant and
steam may blow out under pres-
sure, causing serious injury.
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the engine coolant reservoir
tank/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 cool-
ing fan may continue to operate
or start up when the engine is
not running and can cause seri-
ous injury. Keep hands, clothing
and tools away from the rotat-
ing fan blades of the cooling
fan.
WARNING
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7-20
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.
Changing Engine Coolant
Have coolant changed by an author-
ized HYUNDAI dealer according to
the Maintenance Schedule at the
beginning of this chapter.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.
NOTICE
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.
WARNING
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7-56
Maintenance
TypeRelay NO.Relay Name
MICRO
ACA/C Relay
E81Start Relay
E82Blower Relay
E83Fuel Pump Relay
E84Cooling Fan1 Relay
E85Wiper HI Relay
E86Wiper LO Relay
E87H/Lamp HI Relay
E88Head Lamp Relay
E89Cooling Fan2 Relay
E90Horn Relay
E91B/Alarm Horn Relay
MINIE93Horn Relay
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7-57
7
Maintenance
Fuse NameFuse RatingCircuit Protected
MDPS80AMDPS Unit
ALT150AE/R Junction Block (Fuse - ABS1, ABS2, BLOWER, REAR HEATED)
REAR HEATED40AI/P Junction Block (Rear Defogger Relay)
ABS140AESC Module, Multipurpose Check Connector
ABS240AESC Module
BLOWER40AE/R Junction Block (Blower Relay)
WIPER10AFront Wiper Motor, Multifunction Switch, E/R Junction Block (Wiper LO Relay)
ECU415AECM/PCM
SENSOR110AOil Control Valve #1/#2, E/R Junction Block (Cooling Fan1/2 Relay),
Oxygen Sensor (Up), Oxygen Sensor (Down), Variable Intake Solenoid Valve,
Sub Relay Block (A/C Relay) Purge Control Solenoid Valve, Canister Close Valve
ECU215AECM/PCM
ECU320AECM/PCM
HEAD LAMP RH10AHead Lamp RH
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7-58
Maintenance
Fuse NameFuse RatingCircuit Protected
HEAD LAMP LH10AHead Lamp LH
IGN COIL20AIgnition Coil #1~#4, Condenser
ECU515AECM/PCM, E/R Junction Block (Fuel Pump Relay)
B/UP LAMP10AReverse lamp switch
B+140AI/P Junction Block (Fuse - DRL, FOGLAMP FRONT,
STOP LAMP, MODULE6, Power Connector (AUDIO, ROOM LAMP))
B+250AI/P Junction Block (Fuse - IMMO, SMART KEY1, BRAKE SWITCH,
BCM, SAFETY P/WINDOW, S/HEATER, SUNROOF, Power Window Relay)
IG240AIgnition Switch, PDM Relay Box (IG2 Relay), E/R Junction Block (Start Relay)
COOLING FAN40AE/R Junction Block (Cooling Fan1/2 Relay)
ECU130AE/R Junction Block (Fuse - ECU3, ECU4, Main Relay)
B/ALARM HORN10AB/Alarm Horn Relay
HEAD LAMP20AE/R Junction Block (Head Lamp Relay)
H/LAMP HI20AW/O DRL : E/R Junction Block (H/Lamp HI Relay)
With DRL : SLM, BCM
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