5040 Washer
WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.
0491975 315040 Washer MW
NOTE:
(Spring washer) For pretensioning the differential side gears when determining the installation dimension in the front axle differential [Discontinued]
Courtesy of BMW OF NORTH AMERICA, INC.