WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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]