Take the rotor screw off. Put the wheel back on with the lug bolts finger tight. Put the X5 back on the ground. Back up or pull forward and then hammer the brakes. Rotor is now loose.

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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