ok i have an 03 c230 k i started it up one morning and noticed a high pitched wining noise and said to my self that sound"s like my transmission but went on to my local grocery store parked the car and didnt give it much of a thought until later that evening was sitting in the drive threw @ my local burger joint and when i tried to proceed out nothing engine just revved and that was it never slipped or anything just went away i dropped the transmission pan and not much metal to be found but this weird plastic kinda material does this sound familiar to any one out there please help me madmercedesman