Wheel bearing noise is usually isolated to one side or the other. Do some 360 degree turns and listen. You'll know which side has the bad bearing if it is a wheel bearing.

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Kirk
Las Vegas
2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo
2011 E90M3, 6-speed manual