I guess you're talking about the thread I started.

I thought they changed the MAF sensor, but a few weeks ago when my vehicle went in for the transmission malfuction, I realized they hadn't replaced it. In fact, they hadn't replaced any part whatsoever. The symptom did get somewhat better, but it's still there. Here's my longer thread about it in e90forum. See the video as well.

08' N52 Engine shaking w/ RPM needle moving up and down - BMW 3-Series (E90 E92) Forum - E90Post.com