Note after filling with vacuum filling unit
WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
After the cooling system has been filled with the vacuum filling unit, another bleeding procedure must be performed.
Check function of cooling system.
Visual inspection of cooling system for tightness.