How Often Should Car Freon Be Recharged?
2 Answers
Car freon never needs to be replaced or refilled as long as there is no leakage. Here is some information about freon: 1. Since the chlorine atoms in freon can damage the ozone layer in the atmosphere, both household air conditioners and car air conditioners have long stopped using freon as a refrigerant. 2. Because the air conditioning pipes need to be vacuumed before adding freon, strictly speaking, even if the freon leaks and affects the normal cooling of the air conditioner, the maintenance personnel only add freon instead of completely replacing it.
Our car went five years before needing its first Freon top-up. In fact, if there are no leaks, you shouldn't need to add it at all. Last time the AC wasn't cooling well, the mechanic found a small hole in the condenser caused by a stone impact - only after fixing that did we recharge the refrigerant. Now before every summer, I watch for two key signs: if the AC has strong airflow but poor cooling, or if there's a faint hissing sound from the vents, it usually means a refrigerant leak. Many roadside shops push unnecessary annual top-ups just to make money. Remember - the critical thing is finding and fixing leaks. Simply adding refrigerant without repairing leaks means you'll be back next year.