I've got an '08 Sprinter and had some water get under the camper and the dealer wants to put the vapor barrier back with some breaks in it. The vapor barrier is on top of the frame rails and can't be completely repaired without dismantling the entire camper. Thoughts?
I would think that they could seal it up with the many types of sealing tape there is out there today. If not, will the floor get wet from underneath and rot? I'd be asking questions and try and get it in writing so you have recourse if it fails in the future. Good luck.