12-1050 Tool
WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
0491112 121050 Tool MW
NOTE:
(Tool) Shorter version for adjusting the dynamic ignition timing adjustment and carburetor synchronization - Discontinuation from July 92 / automatic transmission [Discontinued]