2011 Mercedes SL-Class Owner's Manual - Page 142

140 Driving systems detect one too soon. This may cause your vehicle to brake late or unexpectedly. Offset driving Because of their narrow profile, the vehicles traveling near the outer edges of the lane have not yet been detected by the Distronic. There will be insufficient distance to the preceding vehicles. Distance warning function Controls in detail When the Distronic is deactivated, this function will continue to warn you when recognizing a stationary obstacle or a slower vehicle moving in your vehicle's path and the danger of a collision exists: RThe A vehicle traveling in your lane but offset from your direct line of travel may not be detected by the Distronic. There will be insufficient distance to the preceding vehicle. Lane changing distance warning lamp Ò in the speedometer comes on red. intermittent warning will sound if necessary. RAn If these warnings are issued, you must apply the brakes to maintain a safe distance and avoid a collision with the preceding vehicle. When depressing the brake pedal, the warning sound ceases. The warning sound will also cease when the distance to the preceding vehicle is sufficient again without applying the brakes. In this case, the distance warning lamp Ò will also go out. G Warning! The Distronic has not yet detected the vehicle changing lanes. There will be insufficient distance to the lane-changing vehicle. Narrow vehicles If the distance warning lamp (red) Ò in the speedometer comes on while driving and/or an intermittent warning sounds, immediate attention on the part of the driver is required. As required by the traffic situation, apply the brakes and navigate around a possible obstacle. However, do not drive by relying on the distance warning function, as this will result in an emergency braking application. This will not always enable you to avoid a collision, especially when traveling on varying road surface conditions and with varying driver reaction. Complex driving situations are not always fully recognized by the distance warning function. This could result in wrong or missing distance warnings.