How to Deal with Yellowed Headlight Covers?

3 Answers
DelSadie
07/29/25 8:41pm
First, spray a small amount of degreaser on the surface of the headlight cover, then use a damp cloth to wipe the headlight surface until the moisture or dirt is completely removed. Use pre-prepared single-sided adhesive tape to stick around the outline of the headlight, and cover the outer contour of the headlight with something like newspaper where the tape is applied. First, spray the repair agent on the yellowed part of the headlight, paying attention to spray from a distance of 15-20cm away from the headlight, then wipe it clean with a wet towel.
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ElizaAnn
08/14/25 5:59pm
I'm the kind of person who drives an older car, and as the car ages, the headlight covers tend to turn yellow, mainly due to UV exposure oxidizing the plastic. I've dealt with this issue myself a few times and found that using a headlight polishing compound works quite well: first, clean the headlight cover surface with water to remove dirt, dry it, then apply the polishing compound, and use a cloth or sponge to evenly polish for a few minutes. Finally, wipe it clean with a dry cloth. The whole process takes less than thirty minutes, and after polishing, the headlight cover shines like new, making nighttime driving safer. I recommend checking the headlight covers every six months, promptly cleaning off dust to prevent further oxidation. If the yellowing is severe, don’t rush to replace them—DIY treatment can save you hundreds of dollars. Try to park in a garage to reduce sun exposure; these small habits can extend the life of your headlight covers. Remember, don’t use sandpaper or strong acids for cleaning, as they can scratch the covers and cause more damage.
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DiGenesis
10/16/25 6:00am
Hey, I'm the kind of person who loves DIY car repairs, and dealing with yellowing headlights isn't hard to fix. I've used a homemade cleaner: mix baking soda and water into a paste, dip a soft-bristled brush in it, and gently scrub the headlight surface for a few minutes to remove the yellow stains. Then rinse with clean water and apply some toothpaste as a final protective layer—works like a charm! The tools are simple and eco-friendly, costing nothing. The whole process can be done in the backyard, avoiding chemical risks. After trying it a few times, my headlights regained about 80% of their brightness, making driving visibility much clearer. A bonus tip: don’t wait until they’re completely yellowed to act. During regular car washes, check if the dust seals are intact to prevent bigger issues. Keeping headlights clean is worry-free and budget-friendly, plus it’s a lot of fun to do it yourself!
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