Recently installed brand speaking new ZKW headlights in my E36 with zero upgrades no hids etc. The last few days it's been cool and drizzly out and after running the lights for any period of time I end up with fog in the fixture. After the lights cool it appears to go away. Not what I would expect out of $500 lights I went with ZKWs to avoid this type of issue. I have read about loosening the top mounting bolts and confirmed my bulb doors are closed no improvement after adjusting bolts. Does this sound like a faulty set of fixtures to anyone else ? I have never experienced fogging in any of my other vehicles and I have owned some pretty questionable cars in my time as well as several BMWs with factory hids and halogen projectors as well.
Thx