I have been reading for a few days now about all the posting about transmission slipping,jerking when rolling to a stop. I'm know thinking about changing the tranny filter,oil. i don't know if this will stop the rear ended problems but i will go ahead and change it. The problem i found with the rear ending seam to start up after about 15-30 mint driven, when the tranny fluid get heated up,if that the problem than isnt it the Transmission Oil Cooler,need to be change Bimmer Specialist