1150 Tool
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.
0492462 341150 Tool MW
NOTE:
(Installation tool) For pressing in the shielding caps on both sides in the fixed caliper shafts - brake piston diameter 44... 48 mm / single-circuit brake system [Discontinued]
Courtesy of BMW OF NORTH AMERICA, INC.