64-5106 Adapter
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.
0495258 645106 Adapter MW
NOTE:
(Sealing adapter) Sealing adapter for closing off the line for the leakage test (included in delivery specification from 01/2005) [Discontinued]
Courtesy of BMW OF NORTH AMERICA, INC.