32 33... Replacing decorative strip for sport steering wheel
WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
The procedure is described in REMOVING AND INSTALLING/REPLACING MULTIFUNCTION STEERING WHEEL SWITCH (SPORTS STEERING WHEEL) .