I detail headlights at used car dealerships and what I do is drill a TINY hole on the lower edge of the headlight to let the water out. The heat from the light bulb will eventually dry it out.
To...
You can remove the entire headlight fixture by removing 2 clamps on the back side. Pull entire fixture forward, turn over and drill 2 or 3 small holes on the bottom side of the fixture toward the...
The answer to how to clean your headlight lens depends on how dirty your lens is. If it just has bug juice and road grime any good car soap will clean it, just be carefull not to scratch the plastic....
Dirty Headlights.
Here is advice:
Are you sure the light is dirty on the inside? I detail headlights at used car dealerships and most of the time the outside is dirty it only looks like the dirt...
As far as moisture build up goes you can remove the entire assembly and aim a hair dryer inside the holes where the lamps go, then put it all back together.
However if you're aiming to get rid of...