Restore Your Vehicle’s Headlights



If you’ve had your car for a few years, then you may have noticed that your headlights don’t shine the way they used to. This isn’t necessarily a problem with the bulbs, but may be related to a relatively more involved repair. Read on to discover how to repair your headlights so they look like new.  

Why Car Headlights Get Dim

The outer surface is made of a polycarbonate plastic which degrades with exposure to UV rays and chemicals that are encountered on the road. The result is a haze over the surface of the polycarbonate, which can include a network of tiny cracks. Fortunately, it may be possible to fix these problems.

Prepare the Headlamps

Thoroughly clean the polycarbonate surface with soap and water, then use blue painter’s tape to mask off the headlight so that your car’s paint won’t be affected. If you prefer, you can simply remove the polycarbonate plastic so that the rest of your vehicle isn’t exposed to the sanding and polishing.


Use some 1,000 grit wet/dry sandpaper after soaking it for 10 minutes in cold water. Light, straight strokes are best, moving back and forth in one direction. It’s recommended to work slowly and thoroughly, eventually moving on to 1,500, 2,000 and 2,500 grit sandpaper. As you switch grit, alter your stroke pattern by 90 degrees.


Some polishing compound and a microfiber cloth can work wonders after you’ve cleaned the lens. Use a circular motion to rub the compound into the surface, and don’t rush. This step takes time.

UV Sealant

All of the sanding you did earlier will have removed any UV protectant that may have still been on the headlamp. Since UV damage causes many problems, your car headlamps now need a new coating of UV sealant for protection.

Contact the auto repair experts at Performance Auto for more information about keeping your headlights in top shape.

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