Brake Pad Warning Light
WARNING: This page is about a different car, the 2004 BMW Z4 and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Yellow brake pad warning light is located in instrument cluster. Light will come on when brake pad thickness sensor wears through and grounds itself by contacting brake rotor. After replacement of brake pad thickness sensor, light should go out immediately or after several key-starts.