Original post by: Goldbe ,
If I understand you, think your problem is you have moisture entering the headlamp assembly. Check your gaskets for leakage.Moisture is bad for a hot bulb and lenses. Check Hella.com for any upgrades you wish, they are one of the best & OEMs use them. The above advice is also recommended. Also use dielectric grease on the bulb threads,& harness plugs, it will keep moisture out. Hope this helps.