51-4113 nut
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.
0496636 514113 nut MW
NOTE:
As alternative for 51 4 106 with restricted installation space Only available as part of complete tool set 51 4 100 (83 30 0 496 530). [Not available separately]
SI number: 01 23 09 (589)
Courtesy of BMW OF NORTH AMERICA, INC.