![HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-90
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-90
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin](/manual-img/35/56086/w960_56086-224.png)
Convenience Features5-90
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind 
the glove box. It filters the dust or other 
pollutants that enter the vehicle through 
the heating and air conditioning system.
Have the cabin air filter replaced by an 
authorized HYUNDAI dealer according to 
the maintenance schedule. If the vehicle 
is being driven in severe conditions such 
as dusty or rough roads, more frequent 
cabin air filter inspections and changes 
are required.
If the air flow rate suddenly decreases, 
the system should be checked at an 
authorized HYUNDAI dealer.
 Information
[  Replace the filter according to the 
Maintenance Schedule. 
[  If the car is being driven in severe 
conditions such as dusty, rough 
roads, more frequent cabin air filter 
inspections and changes are required. 
[  When the air flow rate suddenly 
decreases, have the system be checked 
by an authorized HYUNDAI dealer. 
Checking the amount of air 
conditioner refrigerant and 
compressor lubricant
When the amount of refrigerant is low, 
the performance of the air conditioning 
is reduced. Overfilling also reduces the 
performance of the air conditioning 
system.
Therefore, if abnormal operation is 
found, have the system inspected by an 
authorized HYUNDAI dealer.
NOTICE
It is important that the correct type and 
amount of oil and refrigerant are used. 
Otherwise, damage to the compressor 
and abnormal system operation may 
occur. To prevent damage, the air 
conditioning system in your vehicle 
should only be serviced by trained and 
certified technicians. 
NOTICE
[ The refrigerant system should only 
be serviced by trained and certified 
technicians to insure proper and safe 
operation.
[  The refrigerant system should be 
serviced in a well-ventilated place.
[  The air conditioning evaporator 
(cooling coil) shall never be repaired 
or replaced with one removed from 
a used or salvaged vehicle and new 
replacement MAC evaporators shall 
be certified (and labeled) as meeting 
SAE Standard J2842. 
![HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-102
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabi HYUNDAI ELANTRA 2023  Owners Manual Convenience Features5-102
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabi](/manual-img/35/56086/w960_56086-236.png)
Convenience Features5-102
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind 
the glove box. It filters the dust or other 
pollutants that enter the vehicle through 
the heating and air conditioning system.
Have the cabin air filter replaced by an 
authorized HYUNDAI dealer according to 
the maintenance schedule. If the vehicle 
is being driven in severe conditions such 
as dusty or rough roads, more frequent 
cabin air filter inspections and changes 
are required.
If the air flow rate suddenly decreases, 
the system should be checked at an 
authorized HYUNDAI dealer.
 Information
[  Replace the filter according to the 
Maintenance Schedule. 
[  If the car is being driven in severe 
conditions such as dusty, rough 
roads, more frequent cabin air filter 
inspections and changes are required. 
[  When the air flow rate suddenly 
decreases, have the system be checked 
by an authorized HYUNDAI dealer. 
Checking the amount of air 
conditioner refrigerant and 
compressor lubricant
When the amount of refrigerant is low, 
the performance of the air conditioning 
is reduced. Overfilling also reduces the 
performance of the air conditioning 
system.
Therefore, if abnormal operation is 
found, have the system inspected by an 
authorized HYUNDAI dealer.
NOTICE
It is important that the correct type and 
amount of oil and refrigerant are used. 
Otherwise, damage to the compressor 
and abnormal system operation may 
occur. To prevent damage, the air 
conditioning system in your vehicle 
should only be serviced by trained and 
certified technicians. 
NOTICE
[ The refrigerant system should only 
be serviced by trained and certified 
technicians to insure proper and safe 
operation.
[  The refrigerant system should be 
serviced in a well-ventilated place.
[  The air conditioning evaporator 
(cooling coil) shall never be repaired 
or replaced with one removed from 
a used or salvaged vehicle and new 
replacement MAC evaporators shall 
be certified (and labeled) as meeting 
SAE Standard J2842. 

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 ........................................................................\
....... 9-9
Maintenance Under Severe Usage Conditions ..................................................... 9-12
Explanation of Scheduled Maintenance Items .......................................... 9-14Dual clutch transmission fluid  ........................................................................\
....... 9-15
Engine Oil ........................................................................\
............................. 9-16Checking the Engine Oil Level ........................................................................\
........9-16
Checking the Engine Oil and Filter ........................................................................\
9-18
Engine Coolant ........................................................................\
..................... 9-19Checking the Engine Coolant Level .......................................................................9\
-19
Changing Engine Coolant ........................................................................\
............... 9-21
Brake/Clutch Fluid ........................................................................\
............... 9-22Checking the Brake/Clutch Fluid Level ................................................................ 9-22
Washer Fluid ........................................................................\
......................... 9-23Checking the Washer Fluid Level ........................................................................\
.. 9-23
Parking Brake ........................................................................\
....................... 9-23Checking the Parking Brake ........................................................................\
.......... 9-23
Air Cleaner ........................................................................\
............................ 9-24Filter Replacement ........................................................................\
......................... 9-24
Cabin Air Filter ........................................................................\
...................... 9-26Filter Inspection........................................................................\
.............................. 9-26
Filter Replacement ........................................................................\
......................... 9-26
Wiper Blades ........................................................................\
........................ 9-27Blade Inspection ........................................................................\
............................ 9-27
Blade Replacement ........................................................................\
........................ 9-27
Battery ....................................................................\
...................................... 9-29
For Best Battery Service ........................................................................\
................ 9-30
Battery Capacity Label ........................................................................\
................... 9-30
Battery Recharging ........................................................................\
.........................9-31
Reset Items ........................................................................\
......................................9-31
9. Maintenance
9 

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. 

Maintenance9-12
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 
oil) is used, then the engine oil and engine oil filter must be replaced as indicated for 
severe maintenance condition. 

Maintenance9-26
Filter Inspection
The cabin air filter should be replaced 
according to the Maintenance Schedule. 
If the vehicle is operated in severely 
air-polluted cities or on dusty rough 
roads for a long period, it should be 
inspected more frequently and replaced 
earlier. When you replace the cabin air 
filter, replace it performing the following 
procedure, and be careful to avoid 
damaging other components.
Filter Replacement
OCN7080013
1.  Push in both sides of the glove box as  shown. This will ensure that the glove 
box stopper pins will get released 
from its holding location allowing the 
glove box to hang.
OCN7080014
2.  Remove the cabin air filter case while pressing the lock on the right side of 
the cover.
OIK077021
3.  Replace the cabin air filter.
4.  Reassemble in the reverse order of disassembly.
NOTICE
Install a new cabin air filter in the correct 
 G L U H F W L R Q  Z L W K  W K H  D U U R Z  V \ P E R O