Why Are My Headlights Turning Yellow?

The headlights on your car are one of the first things that you see when you open the door, and they play a vital role in keeping your vision safe. However, over time, they can develop yellowing and other issues that make them less effective. If you have this problem, there are a few ways that you can fix it and keep your headlights looking clean and bright.

The main cause of yellowing on your headlights is oxidation. This happens as a result of the sun’s UV rays damaging the polycarbonate plastic that covers the headlight lens. This causes the plastic to weaken, which in turn makes the plastic more susceptible to oxidation.

Another cause of oxidation is a build-up of dirt and chemicals on the surface. Some of these things can be addressed with regular washing and cleaning, but others should be dealt with as soon as they appear.

If your headlights are yellowing, they should be wiped down with hot water and soap before being dried thoroughly. This will help remove any grit that might be present, and it will prevent them from getting damaged in the future.

Other solutions include applying a good car wax, which will protect your headlights from the sun’s ultraviolet rays. This will also keep them looking good for longer, and help to reduce the oxidation process by providing a protective layer on the headlight lens.

Park smartly

If you can, park your car in a garage or under a shaded tree as often as possible. This will slow down the oxidation process and prevent your headlights from turning yellow.

Wash your headlights regularly

Every three months, wash your car’s headlights with automotive soap to remove any dirt or grime that may be building up. This will help to prevent the build-up of dirt and chemicals that can contribute to oxidation and fogging.

Polish your headlights using a non-abrasive polishing medium and a microfiber cloth to restore the shine and clarity of your headlight lenses. A baking soda paste or toothpaste can also be used to improve the appearance of your headlights by removing early signs of yellowing.

Sanding your headlights can also help to restore the clearness of your headlights, as well as prevent them from getting yellowed in the future. The sanding will help to remove the oxidized outer coating that is contributing to the yellowing, but you’ll need to buff them out with polish to bring them back to their original shine.

Applying a new coating to protect your headlights from UV light can help to prevent them from getting yellowed in the first place, but this will also require reapplication on a regular basis. It is best to get a professional to do this, though, as it will be more effective and less risky than trying to DIY with your own supplies.

Headlights aren’t only important for visibility; they also add to the overall look of your vehicle. If they’re dull and yellow, they can make your car seem old and outdated. This can be a real shame, as the bright and clear headlights are a key feature that helps to attract attention while driving at night.