61 13... In-line plugs, 2-pin, System JPT ELA
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2007 BMW 530xi. However, it is still accessible from the selected car via links, so may be relevant.
Press lock (1) in direction of arrow and slide connector forward.
Press lock (1) downward and slide out to one side.
Unlock contact with special tool 61 1 136 and pull out cable (1) and contact towards rear.