A TOYOTA Camry 2.4L car with a mileage of about 38 thousand km in 2006. Users reflect: the air conditioning of the vehicle is cool while hot. The vehicle is equipped with a fully automatic air conditioner with variable displacement compressor. Adjust the temperature knob on the left and right sides into the same scale, and feel the temperature on the left and right sides of the outlet obviously by hand. According to experience, the refrigerant is not enough.