July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
86 10... Removing Camlock screw cap
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
Bend back edges (1) of tab washer (2). Remove tab washer (2) over cross pin (3) towards bottom.
Installation
Replace lockplate.
Fig 1: Identifying Back Edges Of Tab Washer With Cross Pin