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.
0493814 614300 Adapter cable MP
NOTE:
(Adapter cable for diagnostic socket) To connect diagnosis system to diagnostic socket from 06/2000 on. [released]