System Maintenance
Cabin Air Filter
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[A] : Outside air, [B] : Recirculated air, [C] : Cabin air filter, [D] : Blower, [E] : Evaporator core, [F] : Heater core
The cabin air filter is located behind the glove box. It filters dust and other contaminants that enter the vehicle through the heating and air conditioning system.
Replace the cabin air filter at an authorized HYUNDAI dealer according to the maintenance schedule. If the vehicle is driven under severe conditions, such as on dusty or rough roads, more frequent inspection and replacement of the cabin air filter is necessary.
If the airflow suddenly decreases, the system should be inspected by an authorized HYUNDAI dealer.
Information
- Replace the filter according to the Maintenance Schedule.
- If the vehicle is driven under severe conditions, such as dusty or rough roads, more frequent inspection and replacement of the cabin air filter is necessary.
- If the airflow suddenly decreases, we recommend that the system be inspected by an authorized HYUNDAI dealer.
Checking Air Conditioner Refrigerant Quantity and Compressor Lubricant
When the refrigerant quantity is low, air conditioner performance is reduced. Overcharging also reduces air conditioner system performance.
Therefore, if abnormal operation is detected, have the system inspected by an authorized HYUNDAI dealer.
NOTICE
It is important to use the correct type and quantity of oil and refrigerant. Otherwise, damage to the compressor and abnormal system operation may occur. To avoid damage, the air conditioning system in your vehicle must be serviced only by trained and certified technicians.
WARNING
Vehicles equipped with R-1234yf
Since the refrigerant is flammable and operates under high pressure, the air conditioning system should be serviced only by trained and certified technicians. It is important to use the correct type and quantity of oil and refrigerant.
All refrigerants must be recovered with proper equipment.
Releasing refrigerants directly into the atmosphere is harmful to people and the environment. Failure to observe these warnings may result in serious injury.
Air Conditioner Refrigerant Label
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You can determine which air conditioner refrigerant is used in your vehicle from the label located inside the hood.
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Each symbol and specification on the air conditioner refrigerant label is shown below:
1. Refrigerant Classification
2. Refrigerant Quantity
3. Compressor Lubricant Classification
4. Caution
5. Flammable Refrigerant
6. Require Registered Technician
Air Conditioning System Service
Test yourself
A quick Hyundai Elantra CN7 quiz: every answer comes with an explanation and a link to the manual page.