What are the causes of refrigerant leakage in car compressors?

[JeremiahAnn]

There are two main causes of refrigerant leakage in car compressors: pipeline sealing failure, corrosion of the condenser or evaporator; and excessively high compressor temperature melting the pipeline seals at connection points. Relevant information is as follows: 1. Inspection method: Add fluorescent dye along with the refrigerant. After driving the vehicle for a week, use a specialized UV lamp to inspect the air conditioning system. If any leakage points glow, it indicates that component is damaged. 2. Refrigerant deficiency check: If the car's air conditioning compressor operates normally and provides cooling, with normal compressor shutdown and restart when reaching temperature, this indicates slight refrigerant deficiency. If the car's air conditioning blows hot air and the compressor runs continuously without shutting down, this indicates severe refrigerant deficiency in the system.