61 13... Inline plugs, 2-pin, System MPQ 2.8
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.
Press grid on outside in direction of arrow and remove towards top.
Press down retaining hook (1) with screwdriver and pull out cable and contact (2) towards rear.