When the amount of refrigerant is low, the performance of the air conditioning is reduced. Overfilling also has a bad influence on the air conditioning system.
Therefore, if abnormal operation is found, we recommend that the system be inspected by an authorized Kia dealer.
WARNING - Vehicles equipped with R-134a*

Because the refrigerant is at very 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 is used. Otherwise, it may cause damage to the vehicle and personal injury.
WARNING - Vehicles equipped with R-1234yf*


Because the refrigerant is mildly inflammable and at very 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 is used.
Otherwise, it may cause damage to the vehicle and personal injury.
Climate control air filter
Windshield defrosting and defoggingKia Cee'd JD Service Manual: Brake Booster Components and components location
Components [LHD]
1. Brake booster
2. Master cylinder assembly
3. O-ring
Components [RHD]
1. Brake booster
2. Master cylinder assembly
3. O-ring
...
Kia Cee'd JD Service Manual: General market
MAINTENANCE UNDER SEVERE
USAGE CONDITIONS - EXCEPT EUROPE (INCLUDING RUSSIA)
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
...