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.
0494126 000226 Frame MW
Fig 1: Identifying Frame (0494126)
Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:
(Side frame) Only required once for constructing the basic frame Discontinued, only available via complete tool [Not available separately]