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

[Blake]

There is no fixed replacement interval for the Freon in a car's air conditioning system. When the cooling effect of the car's air conditioner deteriorates, you can check whether the Freon level is low and replace or add it if necessary. If the car's air conditioner has been used for more than half a year, and there are obvious signs of oil leakage at the pipe joints of the indoor unit or the valves of the outdoor unit, it indicates that there is a leak or oil-Freon mixing in the system, and the refrigerant should be replenished or replaced. The car air conditioner is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the vehicle to a suitable state, providing a comfortable environment for passengers, reducing travel fatigue, creating good working conditions for the driver, and serving as an important ventilation device to ensure safe driving.