I just located a window leak on my '98 Scamp
16 and thought I share the photos. I know Scamps can rot from the inside and this is one way it happens.
On the street side window over the rear dinette, I saw a slight stain on the rat fur under the bottom corner of the window. I found more water staining on the edge of the dinette bench and also on the painted floor under the bench. There is no moisture there now but I bet the stains are from a driving rain possibly while traveling.
were installed with a foam seal that fails over time. I have fixed other windows
by replacing the foam tape with butyl tape. It's an easy fix and it has solved the problem. If I did it over I would have re-sealed all the windows
at one time. I quit after running out of butyl tape. Time for me to get more.