Necessary preliminary tasks
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335xi, and 2010 BMW 335i. However, it is still accessible from the selected car via links, so may be relevant.
Loosen nut (1).
Tightening torque 61 21 1AZ .
Disconnect battery negative lead (3) and secure at side.