This has been discussed before, and I do recall reading about a product that can be used to re-polish the headlight covers without removing them and without side effects.
Now, can someone direct me to that post, I am not able to find it.
The car is E320 / 97.
Can these covers be replaced with a new one? has anyone done this and how much work is it.

Vahe
240D 77 350K
E320 97 78K