Hopefully with this small DIY guide, you will be able to have crystal clear headlamps for your new 206.
I wasn't happy at all with my headlights when I got my car from the Showroom. They were dull looking. The sales man told me that it was normal for the headlamps to look that way, And worst of all, water vapor was condensing inside of the headlamps. I of course, disagreed.
Fisrt I went to BlueBox at Glenmarie to get a free replacement for both sides of my headlamps. Unfortunately these new lamps had the same water condensation problem. But since it was brandnew, I decided to do some DIY to water seal the head lamps. Basically what you need to do is to take both headlamps out and reseal the edges with clear silicone or any other type of sealant
First remove the front grill. Do this by removing the 4 clips and 2 screws attached to the front grill.
Next run your fingers under the grill to the edge and pull the edge out. The grill is attached using clips at the edges
Once you have taken out the grill, next is to remove the headlamp which is secured by 3 10mm bolts(as shown in the pictures below). Remove these 3 botls and pull the lamp out. After you've pulled out the headlamp, you'll have to disconnect the wiring too.
After removing both lamps, use silicone sealant or any other type of sealant and re-seal the edges of the lamp( top and bottom). Once the sealant is dry (use a hairdryer to dry it faster) re-fit your headlights.