I was told from the BMW Shop that my transmission flex disc is wearing out and will need replacement soon. I'm fairly inclined with auto repairs and am curious as to if i can do it myself. Also they said that my A/C pulley tensioner needs repalacement, just the pulley wheel though. how hard is that to do? It doesn't seem that hard, but I learned minor engine repair on a '73 Corvette with a 350, so it was fairly easy. any help or suggestions would be greatly appreciated. thanks in advance guys.