Leaking tailgate

[darkside4.8]

Did a search on this and turned up nothing...
On my 09, the right side tail light (the one mounted on the lift gate itself) has gone out. I can see condensation inside of it. Ok, no problem, ill get a new light, whatever.

THE NEXT DAY, I take the car through the hand car wash. when the guys open up the trunk to clean the windows in there, i see water POURING out from under the interior panel on the inside of the tailgate. its literally coming out of the courtesy light.

Has anyone else seen this happen? the guy at the car wash said he sees a ton of X5s and he said they ALL do this... just curious. I plan to demand a new light for free and get that fixed all on BMW.

I wrote a multi-thousand dollar check to them just last week extending my service plan and warranty, so they better step up.