61 13... In-line plugs, 2-pin, System MDK 3 plus 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.
Unlock lock (1) on outside at retaining hook and slide out lock (1) to side.
With special tool 61 0 316 (61 1 136), unlock contact and pull out cable with contact (1) towards rear.