Sealing headlight compartment

[Marv & Jean]

I have a 2004 M380 with Xenon headlights. Blue Bird, in all it's
wisdom, did not completely seal the area behind the head light covers
allowing road grime and dust to wind up on the lens and and the back
side of the headlight covers. This causes the lights to be less
efficient.

I have been told that this space was left open to assist in cooling the
lamps. The bulbs, however, are in a completely sealed reflector and
lens assembly and I don't know how much cooling they are receiving from
this space being open to the elements and road grime and slush.

Can I safely seal this space without melting the headlight covers?

Your thoughts please.

Marv
2004 M380
Ocean Shores, WA