Hopefully, you torqued the wheel lugs down properly (140Nm, 100 ft. lbs). Overtorquing can cause problems like you describe.

However, it may be that your thrust arm bushings are going bad. Do you feel any vibration w/o the brakes at around 55mph or higher? That's one sign of the bushings going bad.

__________________
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