Hey people thanks for taking the time to read my thread and reply I appreciate all the help that is given, I have a 2003 BMW 530i that had been sitting at my grandparents house for quite awhile not touched probably almost a year and I hooked jumper cables up to it and drove it home and while cleaning it out I noticed that there was water sitting on the back floor it had been there for a long time it was there while it was sitting and I was informed that it had leaked on to the back floor when my grandfather bought it. I used the shop vac to suck up most of the water but I noticed that when I pushed on the carpet there's still water underneath the carpet. I want to pull up the carpet and find out what the problem is and make sure there's no rust from the water. Has anyone out there had a problem like this ? Thanks for your time