How often should the oil in a car's air conditioning compressor be replaced?

[CatherineRose]

In general, the oil in a car's air conditioning compressor does not need to be replaced; the compressor itself is usually replaced directly. Below is a detailed introduction to car air conditioning compressors: The function and types of car air conditioning compressors: The car air conditioning compressor is the heart of the car's air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. They are typically categorized into fixed-displacement compressors and variable-displacement compressors. Maintenance tips for car air conditioning compressors: Check if the refrigerant is sufficient, regularly inspect whether the compressor belt is properly tensioned, and listen for any unusual noises during operation. Adjust or replace parts as necessary.