O'Fallon Auto Repair

You're walking to your car after one of our classic O'Fallon weather swings, maybe a humid afternoon followed by a cool evening, and you see it. A faint fog, a few droplets, a mysterious cloudiness inside your headlight or taillight. Your first thought might be, "Did my car develop a cataract?" or "Is this a sign of major water damage?" Take a deep breath. While it can be alarming, condensation inside light assemblies is a surprisingly common automotive quirk. But understanding why it happens and when it shifts from "quirk" to "problem" is key to keeping your vehicle safe and your lights shining bright on Highway K or I-64. The Science of the Sweaty Headlight: It’s All About Breath Modern headlights and taillights aren't sealed, vacuum-tight units. They're designed to breathe. Why? As bulbs heat up during use and cool down afterward, the air inside the assembly expands and contracts. To prev ... read more