Have a quick look here at this pic and see if it's the same as item 4 http://www.realoem.com/bmw/showparts.do?model=BT33&mospid=47798&btnr=18_0499&hg=18&fg=20
Yes that was the part...no. 4. Just couldn't tell until it was removed. Regardless, getting under the car with a saw was a concern. I couldn't get in there at a reasonalbe angle so I took it to a shop.