How often should the air conditioning in a new car be recharged with refrigerant?

[McHailey]

New car air conditioning systems typically require refrigerant recharge every 3 years, with each recharge lasting approximately 3 years. Refrigerant (commonly referred to as "Freon" or "fluorine") is a non-metallic chemical element with the symbol F and atomic number 9. It belongs to the halogen group (Group VIIA) in the periodic table and is located in the second period. The elemental form of fluorine is F₂, a pale yellow, highly toxic gas. Methods to determine when your car's AC needs refrigerant recharge: 1. If continuous bubbles appear in the sight glass during normal AC operation, it indicates insufficient refrigerant level and requires recharge; 2. If no bubbles appear during operation and no temporary bubbles appear when the AC stops, it indicates overcharged refrigerant and requires release; 3. If no bubbles appear during operation but temporary bubbles appear when the AC stops, it indicates proper refrigerant level.