Water is supposed to stay outside your headlights, not inside. Moisture in your headlights affects the optics, making them generally dimmer or even causing blind spots where no light shines at all. In ...

A car's headlights grow yellow or cloudy over time due to the breakdown of the protective layer on the lens. That contamination can cause your headlights to be dimmer—and therefore less safe. One way ...

The polycarbonate plastic headlight lens on your car or truck degrades from the moment it leaves the factory. Air pollution, airborne grit, and ultraviolet light take the shine off and then discolor ...

We have an elderly Focus that has suffered the common problem of "clouding" of the surface of the polycarbonate headlamp lenses. This can, I am told, lead to MOT failure. Whilst there are (relatively ...