61 13... Inline plugs, 2-pin, System MPQ 2.8
WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
Press catch 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.