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.
0496327 118600 Ring spanner MW
NOTE:
For tightening down exhaust turbocharger screw connection with torque wrench. [Released]