Just got a used 2000 BMW 528, it was driving ok but it was parked up for about 5 days and now when i tried to start it the break pedal won't move. Is there some kind of lock or is there something really wrong. Please help, thanks.

Your in the Wrong Area, this is where you should be asking

http://forums.bimmerforums.com/forum/forumdisplay.php?f=202

Anyways, Welcome to BimmerForums!