24 3 040 Gauge
WARNING: This page is about a different car, the 2005 BMW 760i. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For adjusting restrictor piston when installing gearshift unit
Transmission: 3 HP 12, 3 HP 20, 3 HP 22
Order number: 24 3 040
Gauge
Courtesy of BMW OF NORTH AMERICA, INC.