2023 HYUNDAI ELANTRA HYBRID engine coolant

06
6-47
Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the
battery and cables as described in
chapter 8. The level of charge in your
battery can be checked by an authorized
HYUNDAI dealer or a service station.
If the vehicle is not used for a long time,
park the vehicle indoors if possible.
Check spark plugs and ignition
system
Inspect your spark plugs as described in
chapter 8 and replace them if necessary.
Also check all ignition wiring and
components to be sure they are not
cracked, worn or damaged in any way.
Use approved window washer anti-
freeze in system
To keep the water in the window washer
system from freezing, add an approved
window washer anti-freeze solution in
accordance with instructions on the
container.
Window washer anti-freeze is available
from an authorized HYUNDAI dealer
and most auto parts outlets. Do not
use engine coolant or other types of
antifreeze as these may damage the
paint finish.
Do not let your parking brake freeze
Under some conditions your parking
brake can freeze in the engaged position.
This is most likely to happen when
there is an accumulation of snow or
ice around or near the rear brakes or
if the brakes are wet. If there is a risk
the parking brake may freeze, apply
it only temporarily while you put the
gear selector lever in P and block the
rear wheels so the car cannot roll. Then
release the parking brake.
Do not let ice and snow accumulate
underneath
Under some conditions, snow and ice
can build up under the fenders and
interfere with the steering. When driving
in severe winter conditions where this
may happen, you should periodically
check underneath the car to be sure the
movement of the front wheels and the
steering components is not obstructed.
Don't place foreign objects
or materials in the engine
compartment
Placement of foreign object or materials
which prevent cooling of the engine, in
the engine compartment, may cause a
failure or combustion. The manufacturer
is not responsible for the damage caused
by such placement.
To keep locks from freezing
To keep the locks from freezing, squirt
an approved de-icer fluid or glycerine
into the key opening. If a lock is covered
with ice, squirt it with an approved de-
icing fluid to remove the ice. If the lock
is frozen internally, you may be able to
thaw it out by using a heated key. Handle
the heated key with care to avoid injury.
Drive your vehicle when water vapor
condenses and accumulates inside
the exhaust pipes
When the vehicle is stopped for a
long time in winter while the engine is
running, water vapor may condense and
accumulate inside the exhaust pipes.
Water in the exhaust pipes may cause
noise, etc., but it is drained driving at
medium to high speed.

08
8-7
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. Shift the gear to P (Park) and set the parking brake
3. Turn off the air conditioner.
4. When the coolant or hot steams gush out of the reservoir, stop the
engine and we recommend that
you call an authorized HYUNDAI
dealer for assistance. If the coolant
does not flow out, leave the engine
compartment opened, while running
the engine. Check the coolant
temperature gauge on the instrument
cluster and turn off the engine to
make sure the coolant temperature is
sufficiently cooled down. 5. Cool down the engine sufficiently
and check the coolant level. When it
is insufficient, check its connection
with the radiator, the heater hose,
and the water pump for any leakage.
When there is no leakage, add the
coolant. However, if the problems
persists, such as the coolant leakages,
the cooling-fan malfunction or the
water pump drive belt damages,
immediately stop the engine, and
have your vehicle checked by an
authorized HYUNDAI dealer.

[ You should mix antifreeze and water in
a proper ratio to make coolant. If the
antifreeze ratio is too high or low, it
may cause overheating due to the lack
of cooling function.
(Refer to the Mix Ratio in “Checking
the coolant level” in chapter 9.)

[ If overheating happens repeatedly,
we recommend that you have
your vehicle to be checked by an
authorized HYUNDAI dealer.
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.
IF THE ENGINE OVERHEATS

Emergency Situations8-8
WARNING
Never remove the engine
coolant cap and/or inverter
coolant 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 hybrid system off and wait until
the engine cools down. Use extreme
care when removing the engine coolant
cap and/or inverter coolant 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.
CAUTION

[ Serious loss of coolant indicates a
leak in the cooling system and should
be checked as soon as possible 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.

Engine Compartment ........................................................................\
............ 9-3
Maintenance Services ........................................................................\
...........9-4
Owner’s Responsibility ........................................................................\
.................... 9-4
Owner Maintenance Precautions ........................................................................\
.... 9-4
Owner Maintenance ........................................................................\
.............. 9-5Owner Maintenance Schedule ........................................................................\
........ 9-5
Scheduled Maintenance Services ................................................................ 9-7Normal Maintenance Schedule ........................................................................\
...... 9-8
Maintenance Under Severe Usage Conditions .................................................... 9-12
Maintenance Under Severe Usage Conditions ....................................................9-13
Explanation of Scheduled Maintenance Items .......................................... 9-14HSG (Hybrid Starter & Generator) Belt ...............................................................\
..9-14
Dual Clutch Transmission Fluid ........................................................................\
..... 9-15
Engine Oil ........................................................................\
............................. 9-16Checking the Engine Oil Level ........................................................................\
........9-16
Checking the Engine Oil and Filter ........................................................................\
9-17
Engine Coolant/Inverter Coolant ................................................................ 9-19Checking the Coolant Level......................................................................\
..............9-19
Changing Engine Coolant ........................................................................\
.............. 9-22
Hybrid Starter & Generator (HSG) Belt ....................................................... 9-23Checking the Hybrid Starter & Generator (HSG) Belt .......................................... 9-23
Brake/Clutch Fluid ........................................................................\
............... 9-24Checking the Brake/Clutch Fluid Level ................................................................ 9-24
Washer Fluid ........................................................................\
......................... 9-25Checking the Washer Fluid Level ........................................................................\
.. 9-25
Air Cleaner ........................................................................\
............................ 9-25Filter Replacement ........................................................................\
......................... 9-25
Cabin Air Filter ........................................................................\
...................... 9-27Filter Inspection........................................................................\
.............................. 9-27
Filter Replacement ........................................................................\
......................... 9-27
Wiper Blades ........................................................................\
........................ 9-28Blade Inspection ........................................................................\
............................ 9-28
Blade Replacement ........................................................................\
........................ 9-28
Battery ....................................................................\
......................................9-3012V auxiliary battery ........................................................................\
...................... 9-30
9. Maintenance
9

9-3
09
1. Engine coolant reservoir
2. Engine coolant reservoir cap
3. Inverter coolant reservoir
4. Brake fluid reservoir
5. Air cleaner6. Engine oil dipstick
7. Engine oil filler cap
8. Windshield washer fluid reservoir
9. Fuse box
ENGINE COMPARTMENT
„Gasoline 1.6 GDi HEV
The actual engine compartment in the vehicle may differ from the illustration.OCN7H091001L

09
9-5
WARNING
Performing maintenance work on a
vehicle can be dangerous. If you lack
sufficient knowledge and experience or
the proper tools and equipment to do
the work, have it done by an authorized
HYUNDAI dealer.
ALWAYS follow these precautions for
performing maintenance work:

[Park your vehicle on level ground,
move the shift lever into the P (Park)
position, place the ignition switch in
the LOCK/OFF position.

[ Block the tires (front and back) to
prevent the vehicle from moving.
Remove loose clothing or jewelry
that can become entangled in
moving parts.

[ If you must run the engine during
maintenance, do so in an outdoor
area or in an area with plenty of
ventilation.

[ Keep flames, sparks, or smoking
materials away from the battery and
fuel-related parts. The following lists are vehicle checks and
inspections that should be performed
by the owner or an authorized HYUNDAI
dealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged for
labor, parts and lubricants used.
Owner Maintenance Schedule
When you stop for fuel:

[
Check the coolant level in the engine
coolant reservoir.

[ Check the windshield washer fluid
level.

[ Check the for low or under-inflated
tires.

[ Check the radiator and condenser.

[ Check if the front of the radiator and
condenser are clean and not blocked
with leaves, dirt or insects etc. If any
of the above parts are extremely dirty
or you are not sure of their condition,
we recommend that you contact an
authorized HYUNDAI dealer.
WARNING
Be careful when checking your engine
coolant level when the engine is hot.
This may result in coolant being blown
out of the opening and cause serious
burns and other injuries.
OWNER MAINTENANCE

Maintenance9-6
While operating your vehicle:

[ Note any changes in the sound of the
exhaust or any smell of exhaust fumes
in the vehicle.

[ Check for vibrations in the steering
wheel. Notice if there is any increased
steering effort or looseness in the
steering wheel, or change in its
straight-ahead position.

[ Notice if your vehicle constantly turns
slightly or “pulls” to one side when
traveling on smooth, level road.

[ When stopping, listen and check for
unusual sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.

[ If any slipping or changes in the
operation of your transmission occurs,
check the transmission fluid level.

[ Check the intelligent variable
transmission P (Park) function.

[ Check the parking brake.

[ Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:

[Check coolant level in the engine
coolant reservoir.

[ Check the operation of all exterior
lights, including the brake lights, turn
signals and hazard warning flashers.

[ Check the inflation pressures of all
tires including the spare for tires that
are worn, show uneven wear, or are
damaged.

[ Check for loose wheel lug nuts.
At least twice a year:
(for example, every Spring and
Autumn)

[Check radiator, heater and air
conditioning hoses for leaks or
damage.

[ Check windshield washer spray and
wiper operation. Clean wiper blades
with a clean cloth dampened with
washer a fluid.

[ Check headlight alignment.

[ Check muffler, exhaust pipes, shields
and clamps.

[ Check the seat belts for wear and
function.
At least once a year:

[Clean body and door drain holes.

[ Lubricate door hinges and hood
hinges.

[ Lubricate door and hood locks and
latches.

[ Lubricate door rubber weather strips.

[ Lubricate door checker.

[ Check the air conditioning system.

[ Inspect and lubricate intelligent
variable transmission linkage and
controls.

[ Clean the battery and terminals.

[ Check the brake fluid level.

Maintenance9-10
Normal Maintenance Schedule
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96
Miles×1,000 10 20 30 40 50 60 70 80
Km×1,000 15 30 45 60 75 90 105 120
Cooling system Inspect “Coolant level adjustment and leak” every day
At first, inspect 40,000 miles (60,000 km) or 48 months after that, inspect every 20,000 miles (30,000 km) or 24 months
Engine coolant / Inverter coolant
*6
At first, replace at 120,000 miles (200,000 km) or 120 months. After that, replace every 20,000 miles (30,000 km) or 24 months*
7
All electrical systems I I I I I I I I
Dual clutch transmission fluid
*8
II
Engine clutch actuator fluid Replace every 26,000 miles (40,000 km) or 24 months
Engine clutch actuator hose and line I I I I I I I I
Brake lines, hoses and connections I I I I I I I I
Brake pedal IIII
Brake fluid I R I R I R I R
Brake discs and pads I I I I I I I I
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*5 :
When adding coolant, use only deionized water or soft water for your vehicle and never mix hard water in the coolant filled at
the factory.
*6 :
For your convenience, it can be replaced prior to it’s interval when you do maintenance of other items.
*7 :
Dual Clutch Transmission (DCT) fluid should be changed anytime it has been submerged in water.