334147 Synchronizing key Minimum set: Mechanical tools AM: Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
(Synchronizing key (2 x)) With screws - model series: E38, E39, E46 Deletion, only available via tool set