![HYUNDAI ELANTRA N 2022  Owners Manual 05
5-87
System Maintenance
Cabin air filter
OIK047401LOIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air fi HYUNDAI ELANTRA N 2022  Owners Manual 05
5-87
System Maintenance
Cabin air filter
OIK047401LOIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air fi](/manual-img/35/56092/w960_56092-208.png)
05
5-87
System Maintenance
Cabin air filter
OIK047401LOIK047401L[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.
CN7 N HMA 5.indd   5-87 2021-09-06    3:06:41 
![HYUNDAI ELANTRA N 2022  Owners Manual 05
5-99
System Maintenance
Cabin air filter
OIK047401LOIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air fi HYUNDAI ELANTRA N 2022  Owners Manual 05
5-99
System Maintenance
Cabin air filter
OIK047401LOIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air fi](/manual-img/35/56092/w960_56092-220.png)
05
5-99
System Maintenance
Cabin air filter
OIK047401LOIK047401L[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.
CN7 N HMA 5.indd   5-99 2021-09-06    3:06:45 

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
Drive Axle Shafts and Boots ........................................................................\
........... 9-15
Engine Oil ........................................................................\
............................. 9-16Checking the Engine Oil Level ........................................................................\
........9-16
Checking the Engine Oil and Filter ........................................................................\
 9-17
Engine Coolant ........................................................................\
..................... 9-19Checking the Engine Coolant Level .......................................................................9\
-19
Changing Engine Coolant ........................................................................\
.............. 9-22
Brake/Clutch Fluid ........................................................................\
............... 9-23Checking the Brake/Clutch Fluid Level ................................................................ 9-23
Washer Fluid ........................................................................\
......................... 9-24
Checking the Washer Fluid Level ........................................................................\
.. 9-24
Parking Brake ........................................................................\
....................... 9-24Checking the Parking Brake ........................................................................\
.......... 9-24
Air Cleaner ........................................................................\
............................ 9-25Filter Replacement ........................................................................\
......................... 9-25
Cabin Air Filter ........................................................................\
...................... 9-27
Filter Inspection........................................................................\
.............................. 9-27
Filter Replacement ........................................................................\
......................... 9-27
Wiper Blades ........................................................................\
........................ 9-28Blade Inspection ........................................................................\
............................ 9-28
Blade Replacement ........................................................................\
........................ 9-28
Battery ....................................................................\
......................................9-30For Best Battery Service ........................................................................\
................. 9-31
Battery Capacity Label ........................................................................\
.................... 9-31
Battery Recharging ........................................................................\
........................ 9-32
Reset Items ........................................................................\
..................................... 9-32
9. Maintenance
9
CN7 N HMA 9.indd   9-12021-09-08    9:30:04 

09
9-9
Normal Maintenance Schedule
MAINTENANCE INTERVALS
MAINTENANCE 
ITEM Months 12 24 36 48 60 72 84 96 108 120
Miles×1,000 6 12 18 24 30 36 42 48 54 60
Km×1,000 10 20 30 40 50 60 70 80 90 100
Engine oil and engine oil filter 
*
1
Replace 6,000 miles (10,000 km) or 12 months
Fuel additives  *
2
Add every 6,000 miles (10,000 km) or 12 months
Air cleaner filter I I I R I I I R I I
Spark plugs Replace every 42,000 miles (70,000 km)
Rotate Tires (includes tread wear inspection and tire pressure 
check) Rotate every 6,000 miles (10,000 km)
Cabin air filter Replace every 16,000 miles (25,000 km) or 12 months
Drive belts  *
3
At first, inspect at 48,000 miles (78,000 km) or 72 months,
after that, inspect every 8,000 miles (13,000 km) or 12 months
Intercooler in/out hose, Air intake hose  At first, Inspect at 5,000 mile (8,000 km) or 6 months
After that, Inspect every 20,000 mile(32,000 km) or 24 months
Valve clearance *
4
Inspect every 60,000 miles (90,000km) or 72 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.
*4 : 
Inspect for excessive valve noise and/or engine vibration and adjust if necessary. Have the system inspected by an authorized 
YUNDAI dealer.
CN7 N HMA 9.indd   9-9 2021-09-08    9:30:14 

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 filter *
1R Every 3,000 miles (5,000 km) 
or 6 months G,J,K,L
Air cleaner filter I Inspect more frequently
depending on the condition C, E
Spark plugs R Replace 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
Disc brakes and pads, calipers 
and rotors IInspect more frequently
depending on the condition C, D, E, G, H
Parking brake I Inspect more frequently
depending on the condition C, D, G, H
Drive axle shafts and boots I Inspect more frequently
depending on the condition C, D, E, F, 
G, H, I, J
Cabin air filter R Replace more frequently
depending on the condition C, E, G
Manual transmission fluid 
(if equipped) REvery 72,000 miles 
(120,000 km)  C, D, E, F, 
G, H, I, J
Dual clutch transmission fluid 
(if equipped) REvery 56,000 miles 
(91,000 km) A, B, C, D, 
E, F, G, H, I,  J, K
*1 : Requires 
oil) is used, then the engine oil and engine oil filter must be replaced as indicated for 
severe maintenance condition.
CN7 N HMA 9.indd   9-12 2021-09-08    9:30:15 

09
9-27
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
OCN7080013OCN7080013
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.
OCN7080014OCN7080014
2.  Remove the cabin air filter case while pressing the lock on the right side of 
the cover.
OIK077021OIK077021
3.  Replace the cabin air filter.
4.  Reassemble in the reverse order of disassembly.
NOTICE
Install a new cabin air filter in the correct 
direction with the arrow symbol ( ↓) 
facing downwards, otherwise, it may be 
noisy and the effectiveness of the filter 
may be reduced.
CABIN AIR FILTER
CN7 N HMA 9.indd   9-27 2021-09-08    9:30:20 

I
I-3
B
Battery ................................................................\
................................................. 9-30
  Battery Capacity Label ........................................................................\
............. 9-31
 Battery Recharging ........................................................................\
................... 9-32
  For Best Battery Service ........................................................................\
.......... 9-31
 Reset Items ........................................................................\
............................... 9-32
Before Driving ........................................................................\
............................... 6-4
  Before Entering the Vehicle ........................................................................\
....... 6-4
 Before Starting ........................................................................\
........................... 6-4
Blind-Spot Collision-Avoidance Assist (BCA)  .................................................. 7-20
  Blind-Spot Collision-Avoidance Assist Malfunction and Limitations ............. 7-28
  Blind-Spot Collision-Avoidance Assist Operation ........................................... 7-24
  Blind-Spot Collision-Avoidance Assist Settings .............................................. 7-22
Brake System ........................................................................\
............................... 6-28
  Disc Brakes Wear Indicator ........................................................................\
...... 6-28
  High Performance Brake ........................................................................\
.......... 6-29
 Parking Brake ........................................................................\
........................... 6-29
 Power Brakes ........................................................................\
............................ 6-28
Brake/Clutch Fluid ........................................................................\
...................... 9-23
  Checking the Brake/Clutch Fluid Level ........................................................... 9-23
Bulb Wattage ........................................................................\
.................................. 2-9
C
Cabin Air  Filter ........................................................................\
............................ 9-27
 Filter Inspection ........................................................................\
........................ 9-27
 Filter Replacement ........................................................................\
................... 9-27
California Perchlorate Notice ........................................................................\
...... 9-76
Child Restraint System (CRS) ........................................................................\
..... 3-22
  Children Always in the Rear ........................................................................\
.... 3-22
  Installing a Child Restraint System (CRS) ....................................................... 3-24
  Selecting a Child Restraint System (CRS) ....................................................... 3-23
Climate control additional features .................................................................... 5-106
 Automatic Ventilation........................................................................\
............. 5-106
  Sunroof Inside Air Recirculation .................................................................... 5-106
Consumer Information ........................................................................\
................. 2-16
Cruise Control (CC) ........................................................................\
..................... 7-50
  Cruise Control Operation  ........................................................................\
........ 7-50
CN7 N HMA Index.indd   I-32021-09-08    11:16:48