2010 Mercedes S-Class Owner's Manual - Page 363

Driving systems of the bumper around the sensors is free of dirt, ice and snow. The radar sensors must not be obstructed, for example, by bicycle carriers or overhanging luggage. When you shift the automatic transmission in reverse gear R, yellow indicator lamps : in the exterior rear view mirrors goes out after approximately 3 seconds. The Blind Spot Assist is then not active. The brightness of indicator lamps/warning lamps : is controlled automatically depending on the brightness of the ambient light. The Blind Spot Assist is not active at speeds below approximately 20 mph (30 km/h). The yellow indicator lamps in the exterior rear view mirrors are illuminated. You will not be alerted to the presence of vehicles in the monitored area at these speeds. It is the driver's responsibility at all times to be attentive to road, weather and traffic conditions and to provide the steering, braking and other driving inputs necessary to retain control of the vehicle. Failure to do so could result in recognizing dangers too late, possibly resulting in an accident and serious injury to yourself and others. 361 Indicator and warning lamps Exterior rear view mirror, driver's side X Make sure that the radar sensors (Y page 236) and Blind Spot Assist (Y page 233) are switched on. X Switch on the ignition. Red warning lamps : in the exterior rear view mirrors come on. X Start the engine. Yellow indicator lamps : in the exterior rear view mirrors come on up to a speed of 20 mph (30 km/h). Above a speed of 20 mph (30 km/h), yellow indicator lamps : go out and the Blind Spot Assist is active. If the Blind Spot Assist detects a vehicle in its range, red warning lamp : on the corresponding side of the vehicle comes on. The warning is issued each time a vehicle enters the area monitored by the Blind Spot Assist from behind or from the side. When you pass another vehicle, the warning is issued only when the speed differential is less than 7 mph (12 km/h). Collision warning If a vehicle is detected in the Blind Spot Assist range and you activate the turn signal, a twotone warning will sound once. Red warning lamp : on the corresponding side of the vehicle will flash. G Warning! Do not change lanes or make turns, while red warning lamp : is flashing. Doing so could result in an accident and serious injury to yourself and others. X Remain on the lane that you are currently on until traffic conditions permit to change. If the turn signal remains on, red warning lamp : will flash to indicate that vehicles have been detected. No further audible warnings will sound. Z Controls in detail ! In the event of a significant impact or damage affecting the bumpers, have the radar sensors checked by a qualified specialist workshop such as a MercedesBenz Center. Failure to do this can result in Blind Spot Assist not functioning correctly. G Warning!