check engine HYUNDAI ELANTRA 2023 Repair Manual

Maintenance9-8
Information

[ As it is normal for engine oil to be consumed during driving, the engine oil level should
be checked on regular basis.

[ The engine oil change interval for normal operating conditions is based on the use of
the recommended engine specification.

[ The vehicle may be equipped with the Oil Life Management System that predicts
engine oil life based on the driver’s driving history and alerts the driver to change
engine oil.
- If the deterioration of the engine oil increases depending on the driver’s driving
severity, the remaining oil life alert appears on the instrument cluster before the
normal engine oil replacement interval. Have the engine oil and filter changed by an
authorized HYUNDAI dealer.
- Oil Life Management System works when the recommended engine oil is used.
So, if recommended engine oil is not used, replace the engine oil according to the
maintenance schedule under severe usage condition.
Also, check the amount of engine oil regularly as this system assumes that the engi
ne oil is being filled normally.
- Always reset the remaining engine oil life whenever the engine oil is changed.
Otherwise, the indication of remaining Oil life in the Oil Life Management System
may not be accurate. To reset the Engine Oil Change Reminder, select ‘RESET’ from
the infotainment system screen. Then, select ‘Yes’ when the message “Has the engine
oil been changed? Press [Yes] to reset the oil life.” appears on the screen.
- If there is no alert until the maximum maintenance interval, have the vehicle
checked by an authorized HYUNDAI dealer.

09
9-9
Normal Maintenance Schedule
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156
Miles×1,000 8 16 24 32 40 48 56 64 72 80 88 96 104 Km×1,000 13 26 39 52 65 78 91 104 117 130 143 156 169
Engine oil and engine oil filter *
1
Smartstream
G2.0 Atkinson
RRRRRRRRRRRRR
Smartstream
G1.6 T-GDi
RRRRRRRRRRRRR
Fuel additives
*2
Add fuel additives every 8,000 miles (13,000 km) or 12 months
Air cleaner filter I I R I I R I I R I I R I
Air intake hose I I I I I I I I I I I I I
Spark plugs Smartstream
G2.0 Atkinson
Replace every 96,000 miles
Smartstream
G1.6 T-GDi Replace every 48,000 miles
Rotate tires Rotate tires every 8,000 miles (13,000 km) or 12 months
Cabin air filter RRRRRR
Drive belts
*3
At first, inspect at 48,000 miles (78,000 km) or 72 months.
Thereafter, inspect every 8,000 miles (13,000 km) or 12 months
R: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.*1 :
Requires API SN PLUS (or above) grade engine oil. If a lower grade engine oil is used, then the engine oil and engine oil filter
must be replaced at every 5,000 miles (8,000 km) or 6 months as indicated for severe maintenance condition.
*2 :
If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your
authorized HYUNDAI dealer along with information on how to use them. Do not mix other additives.
*3 :
The drive belt should be replaced when cracks occur or tension is reduced excessively.
❈ As it is normal for engine oil to be consumed during driving, the amount of engine oil should be checked regularly.
❈ The replacement cycle of engine oil is set by the period which the performance of our recommended engine oil is maintained. So, if recommended engine oil is not used, a replacement is required as indicated severe usage condition.

Maintenance9-10
Normal Maintenance Schedule (CONT)
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156
Miles×1,000 8 16 24 32 40 48 56 64 72 80 88 96 104 Km×1,000 13 26 39 52 65 78 91 104 117 130 143 156 169
Engine coolant At first, replace at 120,000 miles (200,000 km) or 120 months.
After that, replace every 24,000 miles (39,000 km) or 24 months
Battery condition I I I I I I I I I I I I I
Brake lines, hoses and connections I I I I I I I I I I I I I
Disc brakes and pads I I I I I I I I I I I I I
Steering gear rack, linkage and boots / lower arm ball joint,
upper arm ball joint IIIIIIIIIIIII
Driveshaft and boots I I I I I I I I I I I I I
Suspension mounting bolts I I I I I I I I I I I I I
Air conditioner refrigerant I I I I I I I I I I I I I
Air conditioner compressor I I I I I I I I I I I I I
Exhaust pipe and muffler I I I I I I I I I I I I I
Manual transmission fluid (if equipped)
*1
Replace every 40,000miles or 4 years
Intelligent variable transmission fluid (if equipped)
*2
No check, No service required
Dual clutch transmission fluid (if equipped)
*1
III
R: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.*1 :
Manual transmission fluid/Dual clutch transmission fluid should be changed anytime they have been submerged in water.
*2 :
Use only the specified intelligent variable transmission fluid. (Refer to “Recommended lubricants and capacities” section in
chapter 2 or the label in the engine compartment.)

Maintenance9-12
Maintenance Under Severe Usage Conditions
The following items must be serviced more frequently on cars mainly used under
severe driving conditions. Refer to the chart below for the appropriate maintenance
intervals.
R : Replace
I : Inspect and if necessary, adjust, correct, clean or replace
Maintenance item Maintenance
operation Maintenance intervals Driving
condition
Engine oil and
filt
er *1
Smartstream
G2.0 Atkinson
RReplace every 5,000 miles
(8,000 km) or 6 months A, B, C, D,
E, F, G, H, I, J, K, L
Smartstream
G1.6 T-GDi A, B, C, D,
E, F, G, H, I, J, K, L
Air cleaner filter IInspect more frequently
depending on the condition C, E
Spark plugs RReplace more frequently
depending on the condition A, B, F, G,
H, I, K
Steering gear rack, linkage and
boots IInspect more frequently
depending on the condition C, D, E, F, G
Front suspension ball joints IInspect more frequently
depending on the condition C, D, E, F, G
Disc brakes and pads, calipers
and rotors IInspect more frequently
depending on the condition C, D, E, G, H
Parking brake IInspect more frequently
depending on the condition C, D, G, H
Driveshaft and boots IInspect more frequently
depending on the condition C, D, E, F,
G, H, I, J
Cabin air filter RReplace more frequently
depending on the condition C, E, G
Manual transmission fluid
(if equipped) RReplace every 80,000miles
(120,000 km) C, D, E, F,
G, H, I, J
Intelligent variable transmission
fluid (if equipped) RReplace every 60,000miles
(90,000 km) A, C, D, E, F,
G, H, I, K
Dual clutch transmission fluid
(if equipped) RReplace every 80,000miles
(120,000km) C, D, E, F,
G, H, I, J
Rear differential oil RReplace every 72,000 miles
(120,000 km) C, D, E, G,
H, I, J
Transfer case oil No check, No service required
*1 : Requires grade engine oil. If a lower grade engine oil (mineral
oil) is used, then the engine oil and engine oil filter must be replaced as indicated for
severe maintenance condition.

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

09
9-15
Engine Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Manual Transmission Fluid
(if equipped)
Inspect the manual transmission fluid
according to the maintenance schedule.
Intelligent variable transmission
fluid (if equipped)
Intelligent variable transmission fluid
should not be checked under normal
usage conditions.
Have the Intelligent variable transmission
fluid is changed by an authorized
HYUNDAI dealer according to the
maintenance schedule.
Dual clutch transmission fluid (if
equipped)
Dual clutch transmission fluid should
not be checked under normal usage
conditions.
Have the Dual clutch transmission fluid
is changed by an authorized HYUNDAI
dealer according to the maintenance
schedule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification.
Parking Brake
Inspect the parking brake system
including the parking brake pedal and
cables.
Brake Discs, Pads, Calipers and
Rotors
Check the pads for excessive wear, discs
for run out and wear, and calipers for
fluid leakage.
Suspension Mounting Bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint
With the vehicle stopped and the engine
off, check for excessive freeplay in the
steering wheel. Check the linkage for
bends or damage. Check the dust boots
and ball joints for deterioration, cracks,
or damage.
Replace any damaged parts.
Drive Shafts and Boots
Check the drive shafts, boots and clamps
for cracks, deterioration, or damage.
Replace any damaged parts and, if
necessary, repack the grease.
Air Conditioning Refrigerant
Check the air conditioning lines and
connections for leakage and damage.

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

Maintenance9-18
Checking the Engine Oil and
Filter

[ Have the engine oil and filter be
changed by an authorized HYUNDAI
dealer according to the Maintenance
Schedule at the beginning of this
chapter.

[ If the maintenance schedule to
replace engine oil is exceeded,
the engine oil performance may
deteriorate, and the engine condition
may be affected. Therefore, replace
the engine oil according to the
maintenance schedule.

[ To keep the engine in optimal
condition, use the recommended
engine oil and filter. If the
recommended engine oil and filter are
not used, replace it according to the
maintenance schedule under severe
usage conditions.

[ The purpose of the maintenance
schedule for engine oil replacement
is to prevent oil deterioration and it is
irrelevant to oil consumption. Check
and refill engine oil regularly.
Information
When the oil pressure is low due to
insufficient engine oil, the Engine
Oil Pressure (
) warning light will
illuminate. In addition, the enhanced
engine protection system, which limits
the engine’s power is activated and the
Malfunction Indicator Lamp (
) will
illuminate when the vehicle is driven in
this state continuously. When oil pressure
is restored, the Engine Oil Pressure
warning light will turn off and the engine
power will no longer be limited.
CAUTION
The engine oil is very hot immediately
after the vehicle has been driven and
can cause burns during replacement.
Replace the engine oil after the engine
oil has cooled down.
WARNING
CALIFORNIA PROPOSITION 65
WARNING
Engine oil contains chemicals known to
the State of California to cause cancer,
birth defects and reproductive harm.
Used engine oil may cause irritation or
cancer of the skin if left in contact with
the skin for prolonged periods of time.
Always protect your skin by washing
your hands thoroughly with soap and
warm water as soon as possible after
handling used 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

Maintenance9-20
WARNING
OCN7080005
OCN7N080006
„Smartstream G1.6 T-GDi
1. Check if the radiator cap label is straight In front.
2. Make sure that the tiny protrusions inside the radiator cap should be
securely interlocked.
Recommended engine coolant

[When adding coolant, use only
distilled (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
aluminum 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 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.
For mixing percentage, refer to the
following table:
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
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.