After buying a new rear inner light combo in september 2019 I thought I wouldn't have the dreaded condensation problems again. I decided to hopefully fix it once and for all. So I removed the unit could not visibly see where the seal had gone on the rear of the light but it was a very fine beading, I think it's a design flaw with all these ULO lights on the D3. So I dismantled the unit and no visible damage just water in between the facia and refective housing. Dried it out left overnight and sealed with granville clear silicone a thick beading this time not like factory
hopefully this have fixed it so far so good.