2007 Mercedes S-Class Owner's Manual - Page 389

Controls in detail Driving systems When DISTRONIC Plus detects a vehicle driving ahead of you, the ring on the speedometer dial lights up between the speed of the vehicle ahead of you and set speed 2. If DISTRONIC Plus calculates that there is a danger of collision ( page 397): The distance warning lamp l in the instrument cluster comes on. An intermittent warning sounds. Immediately brake the vehicle to avoid a collision. Under no circumstances should the driver await the intermittent warning sound before braking. See the following warning note. The intermittent warning sound ceases and the distance warning lamp l goes out when the necessary distance to the vehicle ahead is again established. Warning! G Warning! G An intermittent warning sounds and the distance warning lamp l in the instrument cluster is illuminated if the DISTRONIC Plus system calculates that the distance to the vehicle ahead and your vehicle's current speed indicate that DISTRONIC Plus will not be capable of slowing the vehicle sufficiently to maintain the preset following distance, which creates a danger of a collision. Immediately brake your vehicle to increase the distance between your vehicle and the vehicle in front of you. The warning sound is intended as a final caution that you have not interceded 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, as that 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 Plus brakes your vehicle with a maximum of 13 ft/s2 (4 m/s2). This corresponds to about 40% of the maximum deceleration ability of your vehicle. DISTRONIC Plus brakes the vehicle in an effort to restore the preset distance or to maintain the speed. The brake pedal is automatically applied as this happens which results in the brake pedal moving. Keep driver's foot area clear at all times, including the area under the brake pedal. Objects stored in this area may impair pedal movement which could interfere with the braking ability of the DISTRONIC Plus system. Do not place your foot under the brake pedal - your foot could become caught. 388