Originally Posted by pbonsalb
So where is the block drain on the S65? No one has answered that question yet.
I have flushed coolant on E34, E36, and E39 so I understand the normal process. We are trying to figure out in this thread if there are any E9x M3 specific issues. I still have not gotten to this project so I have nothing to contribute yet.
I haven't crawled under there myself yet but if you've done those, then I'm sure you'll be fine. Same goes to anyone that's ever done a full coolant flush on a BMW.
There's nothing else down there. You're either draining oil or coolant from the block