Vibration/Shaking under car while in drive but not moving?

[singh284]

I have a 2013 BMW x50i and I just noticed that whenever I am stopped, but still in drive there is a vibration/shaking underneath the car, more towards the back of it. I have yet to notice it while I’m in Park. It sometimes fell as if something about to come lose. There is no vibrating whatsoever while I’m actually driving the car just while I am stopped but still have the car in Drive .Anyone have any idea what that could be?

[jandref321]

Support bearing for tranny (#2)?

http://www.realoem.com/bmw/enUS/show...diagId=22_0150

Or the engine mounts (#7)

http://www.realoem.com/bmw/enUS/show...diagId=22_0148

[msan]

Engine / motor mount is my guess

[JoeyBimX5din]

is it a sound or a physical vibration on the vehicle? I know my 50i, the rear exhaust 'tip' has these little rivets that hold it around the exhaust pipe, and one side is loose, so I would hear a funny sound at certain times and certain revs. This is of course before I cut the muffler off, now I hear nothing but a beautiful oil sucking fury of 4.4 TT V8 fury symphony sounds now.

I may tack weld it up whenever I get back to my garage to wrench on my truck.