Contact Ring
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2008 BMW Z4, 2008 BMW M Roadster, 2008 BMW M Coupe, 2007 BMW Z4, and 2007 BMW M Roadster. However, it is still accessible from the selected car via links, so may be relevant.
To center contact ring by aligning arrows on front of steering wheel, press down hub center spring clip lock and hold it down. On bottom side of steering wheel, turn contact ring fully clockwise or counterclockwise until it stops. Turn contact ring back about 3 turns until arrows align, and release spring clip lock. Contact ring is in center position.