WARNING: This page is about a different car, the 2010 BMW 650i, 2009 BMW 650i, 2008 BMW 650i, 2007 BMW 650i, and 2006 BMW 650i. However, it is still accessible from the selected car via links, so may be relevant.
Support transmission with special tools 23 4 050, 00 2 030.
IMPORTANT:
Transmission must be secured with tensioning strap (1).
Fig 1: Supporting Transmission Using Special Tools (23 4 050)