What is the best method to check for refrigerant leakage in car air conditioning?

[VonJeffrey]

The best methods to check for refrigerant leakage in car air conditioning: 1. Observe whether there are oil stains on the air conditioning pipelines and various interfaces; 2. Spray soapy water to see if bubbles appear—if bubbles form, it indicates a leak; 3. Electronic leak detection can also be used to check for refrigerant leakage. Electronic leak detection is a new popular detection method in recent years. During the inspection, move the detection probe over possible leakage points. When the detection device emits an alarm, it indicates a significant leak in that area. The car air conditioning system is an important component of a vehicle, capable of both cooling and heating. The car's air conditioning system requires regular cleaning and disinfection; otherwise, it can breed many bacteria, posing health risks to the vehicle's occupants.