2009 Mercedes SL-Class Owner's Manual - Page 151

Controls in detail Driving systems Removal, tampering, or altering of the device will void any warranties, and is not permitted. Do not tamper with, alter, or use in any non-approved way. Any unauthorized modification to this device could void the user's authority to operate the equipment. If the Distronic is activated, the set speed 2 and distance warning lamp 1 appear in the speedometer. The vehicle speed displayed on the speedometer can briefly vary from the speed setting on the Distronic system. If the Distronic detects a vehicle directly ahead, the Distronic indicator lamp E in the speedometer dial comes on white. If the Distronic calculates that there is a danger of collision, the distance warning lamp E in the speedometer comes on red and an intermittent warning sounds. X Immediately apply the brakes to avoid a collision. Under no circumstances should the driver await the intermittent warning sound before braking. The intermittent warning sound ceases and the red distance warning lamp E goes out when the necessary distance to the vehicle ahead is established again. to the vehicle ahead and your vehicle's current speed indicate that the Distronic will not be capable of slowing the vehicle sufficiently to maintain the preset following distance, which creates a danger of a collision. Immediately brake the vehicle to increase your distance to the preceding vehicle. The warning sound is intended as a final caution in which you should intercede with your own braking inputs to avoid a potentially dangerous situation. Do not wait for the operation of the warning signal to intercede with your own braking. This will result in potentially dangerous emergency braking which will not always result in an impact being avoided. Tailgating increases the risk of an accident. Distronic displays in the speedometer 1 Red distance warning lamp 2 Set speed G Warning! An intermittent warning sounds and the distance warning lamp (red) E in the speedometer dial is illuminated if the Distronic system calculates that the distance G Warning! The Distronic brakes your vehicle with a maximum deceleration of 6.5 ft/s2 (2 m/s2). This corresponds to approximately 20% of the maximum deceleration of your vehicle. The Distronic brakes the vehicle in an effort to restore the preset distance or to maintain the set speed. Z 149