31-5090 Adapter
WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
0491982 315090 Adapter MW
NOTE:
(Adapter) For pulling off the taper roller bearings from the differential housing in the front axle differential [Discontinued]
Courtesy of BMW OF NORTH AMERICA, INC.