WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Tool Set (2155744)
Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:
Hydraulic unit (basic unit) for removal and installation of wheel bearings, propeller shafts and drive flanges.