Do you have cloudy headlights? It’s not just a cosmetic, aesthetic appeal issue—it can also impact how well you see and be seen at night. We also think that lousy headlights quickly age a vehicle, so if you're looking for an easy way to maximize its resale value, pay attention. Thankfully, cleaning foggy headlights can be a practical, budget-friendly DIY project, and it'll instantly improve the appearance of your dirty headlights and boost nighttime visibility.
Cloudy or foggy headlight lenses can happen to anyone over time. Exposure to sunlight, excess dirt, and moisture can cause the clear coating on your plastic headlights to break down, leaving that cloudy layer on your headlight lens. This hazing over time is often the result of oxidation—a chemical reaction caused by UV light rays degrading the plastic lenses. Add in road grime, debris, and water stains, and it’s easy to see why headlights lose their shine.
The good news? Most of this buildup is on the surface of the plastic headlight lenses and can be removed with the proper cleaning techniques. Knowing why it happens can also help you maintain your headlights better in the future.
There’s more than one way to tackle foggy headlights. Whether you’re using common household items, a specialized cleaning kit, or a professional headlight cleaning, here’s how you can get that like-new clarity:
You don’t always need fancy products to get the job done. Some simple household cleaners can be effective cleansers on slightly hazy headlights. Keep in mind, results may vary on these headlight cleaning methods, and keep your expectations in check, nothing compares to professional restoration.
If DIY isn’t your thing, headlight restoration kits are an affordable solution and readily available at auto stores. These premade kits usually include:
Follow the instructions provided with the kit, and take your time with sanding for the best results.
For heavily oxidized headlights, a wet sand is often the most effective solution. Here’s how the sanding steps work:
While not DIY, it's probably the most reliable and longest lasting headlight cleaning tip is to see a professional detailer. They have the right tools and methods to give you pretty much like-new condition with lasting UV protection.
Kind of, but we wouldn't. WD-40 can temporarily clear foggy headlights by adding a layer of oil to the surface, making them appear shinier and the headlights clearer; however, this is a short-term fix and isn't really a headlight cleaner and won’t remove oxidation or provide lasting results. For more permanent protection, use one of the methods outlined above. or use the headlight restoration services at a detail shop.
You CAN, but don't. You've probably seen people spray their headlights with bug spray on TikTok, but it's a bad idea. Yes, if you spray bug spray on a paper towel and wipe it on, some mosquito repellent with DEET can temporarily clear the cloudiness of the plastic cover by melting away the outer layer of oxidation. Be careful, this method may damage the plastic over time and you may need a complete headlight replacement.
It really depends on your driving conditions, and how you maintain your car. If you frequently drive on dusty roads or park in direct sunlight, your headlights may need cleaning every 3–6 months. Applying a UV-blocking sealant on a regular basis can extend the time between cleanings.
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