on my 09 plate LCI I ended up getting smears on the inside of the headlights after two years from new it was so bad it actually caused the light output to be affected. In end BMW came out inspected and both lights where replaced. New units have had no problems at all.
Get it dried out indeally one day when its hot and sunny and then recheck all the covers and seals hopefully it will work
F30 335i M Sport