33 21 ... Ribbed teeth

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW 650i, 2009 BMW M6, 2009 BMW 650i, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Bolts with ribbed teeth must be replaced after they have been released!

Fig 1: Identifying Ribbed Teeth Of Bolt

Courtesy of BMW OF NORTH AMERICA, INC.