What Causes Poor Air Conditioning Performance in Small Cars?

1 Answers
Kaleb
07/29/25 4:09pm
There are several reasons for poor cooling performance in car air conditioning systems: 1. Reason One: Refrigerant leakage leading to insufficient pipeline pressure. During the use of the air conditioning system, the refrigerant undergoes continuous chemical changes. Gradually deteriorating refrigerant can corrode various components of the air conditioning system, such as sealing rings and rubber hoses, resulting in refrigerant and compressor oil leakage. 2. Reason Two: Reduced heat dissipation capacity of the condenser. The longer the car is driven, the more oil, dirt, or debris accumulates on the condenser surface, thereby reducing its heat dissipation efficiency. Additionally, faults in the cooling fan or a loose drive belt can also impair the condenser's heat dissipation capability. 3. Reason Three: Blocked air ducts or excessively dirty air conditioning pipelines. The purpose of the cabin air filter is to prevent dust and impurities from entering the vehicle interior, so over time, many contaminants can clog the air vents. Once blocked, the airflow volume naturally decreases, often accompanied by unpleasant odors.
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