Hi guys, I know this is a common problem water in a Z4. I know it's not the third brake light I have taken that out and sealed it. The covers over the lights I have poured water around there and no signs coming in through the fittings. Is there any chance you guys can point me in the direction of drains on the vehicle , I know the two roof drains are ok . It looks to me like it's gathering from the top of the battery as the plastic casing that the battery sits in there is a small level of water all around it. The seats in the front are dry . Any help would be much appreciated. Cheers Adrian