WM 373115 Adjusting Multi-Functional Switch (Except Cayenne Man, Cayenne S Man, Cayenne GTS, Cayenne TRANSSYBERIA Man): Tools
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.