Did you splash some oil on top of the big metal shield/plate when you took the drain plug out?

This would be a good time to get some engine degreaser and hose down the engine (stay away from electrical connector -- plastic wrap them or bag them to keep them dry). Now you can start from a clean motor to see where the oil is leaking from a bit better.

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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