Why Do My Headlights Look Yellow or Foggy?

Driving at night or during heavy rain requires clear headlights for safety. However, many car owners notice their headlights turning yellow, dull, or foggy over time. This doesn’t just affect the car’s appearance, it also reduces visibility on the road. But why does this happen?

Common Reasons for Yellow or Foggy Headlights

1. Oxidation

   Most modern headlights are made from polycarbonate plastic. Over time, UV rays from the sun cause the surface to oxidize, making it turn yellow.

   
   

2. Moisture Inside the Headlight

   Small cracks or loose seals allow water or condensation to build up inside the headlight cover, creating a foggy look.

   

3. Dirt and Road Debris

   Dust, sand, and small stones from the road can scratch the headlight surface, making it look hazy.

   
   

4. Aging of the Plastic

   Heat from the bulbs and years of use naturally cause the material to degrade and lose clarity.

   

What You Can Do

• Clean the Headlights Regularly

  Use proper headlight restoration kits or toothpaste with baking soda for a quick DIY fix.

• Polish and Seal

  After cleaning, apply a UV-protective sealant to slow down future oxidation.

• Check for Leaks

  If condensation forms inside, the headlight housing may need resealing or replacement.

• Replace if Necessary

  Severely damaged headlights may need a full replacement for safety.

Conclusion

Yellow or foggy headlights are common in Malaysia’s hot and humid weather. Luckily, with regular care or a quick restoration job, you can bring them back to near-new condition. Clear headlights not only improve your car’s look but also ensure safer driving at night.

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