If the drive shaft support bearing is bad, a mobile mechanic is not the one to change it. You really need a lift for this. I've done one on the ground, and it's a bitch.

If there's vibration when not moving it could also be the motor mount.

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2014 BMW 328i Xdrive
2011 BMW 335i M-Sport
2008 BMW X5 4.8i Sport
2000 BMW 528i 5sp