Had a good rainstorm the other night and I discovered some water in front of the right rear passenger seat. I didn't feel any dampness from the normal areas of the front seat near the front pillars, etc.

Anyone have a good place to checkout or any idea?

EDIT: 1990 XJS V12 Coupe

 

Hmmmmm maybe you didn't close the roof . . . . . . . . .


Sorry, but it would be a very good idea for you to put the type of car, year and engine size on your post.

 

Haha, if my roof wasn't closed I'd have much bigger problems.

Added the details - 1990 XJS V12 Coupe

 

There is a good chance it is leaking in from the seal round the rear side window. remove the rear seat and the armrest/speaker trim, and you may find evidence. A go round both sides of the seal with some bituminous gunk will fix it.

Greg