Can a car air conditioning compressor still be used if it's leaking oil?
2 Answers
An air conditioning compressor leaking oil should not continue to be used. Oil leakage from the compressor indicates that refrigerant is also likely leaking. If the leakage points are the oil seal and interface gasket, repair is not recommended. Without repair, once the refrigerant leaks out, the air conditioning will no longer provide cooling. Introduction to the air conditioning compressor: The compressor is the heart of the air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. If there is a malfunction in the air conditioning refrigeration system, it is likely due to issues with the refrigerant. Common causes of compressor failure: Lack of refrigerant, damaged air conditioning flaps, excessively dirty condenser, damaged air conditioning compressor, throttle valve or expansion valve, blocked air ducts, excessively dirty air conditioning pipes.
As an experienced mechanic, I've seen many cases of AC compressor oil leaks. Whether it's still usable depends on the size of the leak. With minor leaks, the AC might still blow some cold air, but I strongly advise against long-term use because the lubricant is crucial for keeping the system running smoothly. If it all leaks out, it will increase internal friction, leading to overheating or even seizing. Common causes include aging seals or vibration damage. It's best to first locate the leak with a UV light and confirm the spot with a test dye. Delaying repairs not only ruins the compressor but can also damage the condenser or pipes, leading to costly repairs of several thousand dollars. I always remind car owners not to save small money only to invite big trouble. After fixing the AC, checking the refrigerant charge can improve efficiency. Generally, servicing it every two years can prevent such issues. Safety always comes first—getting it professionally inspected is the wisest move.
