2011 Mercedes R-Class Owner's Manual - Page 184

182 Driving systems The ability of DISTRONIC to detect vehicles when cornering is limited. Your vehicle may brake unexpectedly or late. Vehicles traveling on a different line DISTRONIC has not yet detected the vehicle in front on the edge of the road, because of its narrow width. The distance to the vehicle in front will be too short. Obstructions and stationary vehicles Driving and parking DISTRONIC may not detect vehicles traveling on a different line. The distance to the vehicle in front will be too short. Other vehicles changing lane DISTRONIC does not brake for obstructions or stationary vehicles. If, for example, the detected vehicle turns a corner and reveals an obstacle or stationary vehicle, DISTRONIC will not brake for these. Crossing vehicles DISTRONIC has not detected the vehicle cutting in yet. The distance to this vehicle will be too short. Narrow vehicles DISTRONIC may detect vehicles that are crossing your lane by mistake. Activating DISTRONIC at, for example, a traffic light with crossing traffic, could cause your vehicle to pull away at the wrong time. Rear axle level control The rear axle level control regulates the vehicle level at the rear axle. The benefit of this is that the vehicle level at the rear axle is kept constant regardless of the load.