Page 225 of 572
![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. 
     
        
        Page 226 of 572

05
5-91
 WARNING
Vehicles equipped with R-1234yf
Since the refrigerant is 
mildly flammable and 
operated at high pressure, 
the air conditioning system 
should only be serviced 
by trained and certified 
technicians. It is important 
that the correct type 
and amount of oil and 
refrigerant are used. 
All refrigerants should be reclaimed 
with proper equipment.
Venting refrigerants directly to the 
atmosphere is harmful to individuals 
and environment. Failure to heed these 
warnings can lead to serious injuries.
OCN7050060
Air conditioning refrigerant label
You can find out which air conditioning 
r
 efrigerant is applied to your vehicle on 
the label located inside of the hood.
  „Example
OHYK059001
Each symbols and specification on 
the air conditioning refrigerant label is 
represented as below:
1.  Classification of refrigerant
2.  Amount of refrigerant
3.  Classification of Compressor lubricant
4. Caution
5. Flammable refrigerant
6.  To require registered technician to  service air conditioning system 
     
        
        Page 237 of 572
![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. 
     
        
        Page 238 of 572

05
5-103
 WARNING
Vehicles equipped with R-1234yf
Since the refrigerant is 
mildly flammable and 
operated at high pressure, 
the air conditioning system 
should only be serviced 
by trained and certified 
technicians. It is important 
that the correct type 
and amount of oil and 
refrigerant are used. 
All refrigerants should be reclaimed 
with proper equipment.
Venting refrigerants directly to the 
atmosphere is harmful to individuals 
and environment. Failure to heed these 
warnings can lead to serious injuries.
ODN8A079026
Air conditioning refrigerant label
You can find out which air conditioning 
r
 efrigerant is applied to your vehicle on 
the label located inside of the hood.
  „Example
OHYK059001
Each symbols and specification on 
the air conditioning refrigerant label is 
represented as below:
1.  Classification of refrigerant
2.  Amount of refrigerant
3.  Classification of Compressor lubricant
4. Caution
5. Flammable refrigerant
6.  To require registered technician to  service air conditioning system