Just replaced my damaged headlamp and bugger me the other side is now misting up!
Has anyone any ideas as to how to stop the moisture getting in or let the moisture out.
I vaguely recall reading a thread a while ago on this.
I will try the hairdryer trick initially and monitor moisture intake.
Any ideas/advice aprreciated

When I had this problem, I stripped out the units and seperated them, dried them out and resealed them. On mine, I had a drain plug that let out the excess water but also let in mositure aswell