Well you guessed it. I have a 10/95 M3 and have about 54k on it. I have been meaning to get to replacing the water pump but just haven't found the time yet. Well i guess i have to make time now. I think that i have gotten lucky though, as i started the car to leave this afternoon i heard a wierd plasitc breaking like sound. Imediately i turned the car off and tried starting the car again. THis time there was no sounds. THe car was already warm and as i watched the temp guage it imediately dropped to cold and then right back upto normal. So i pulled it in the garage and that was it. I don't think that the temp ever went above normal so i HOPE that i am okay. What i need from you guys is some direction as to where to get a new impeller for a good price, how much? and some direction on doing it myself. Also i have been considering doing the UD pully so i am assuming this is a good time to do this also.