2008 Mercedes S-Class Owner's Manual - Page 449

Controls in detail Driving systems Switching off the Parktronic system: Press button 1. Indicator lamp 2 comes on. Switching on the Parktronic system: Press button 1 again. Indicator lamp 2 goes out. Have the Parktronic system checked by an authorized Mercedes-Benz Center as soon as possible. If only the red distance segments illuminate and no acoustic warning sounds, the Parktronic system sensors are dirty or there is an interference from other radio or ultrasonic signals. The Parktronic system will automatically switch off after 20 seconds and the indicator lamp in the Parktronic switch comes on. Switch off the ignition ( page 344). Clean the Parktronic system sensors ( page 589). Switch on the ignition. or Check the Parktronic system operation at another location to rule out interference from outside radio or ultrasonic signals. Park Assist* Warning! G i The Parktronic system is automatically switched on when the ignition is switched on ( page 344). Park Assist is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during parking and other critical maneuvers always remains with the driver. Parktronic system malfunction If only the red distance segments illuminate and an acoustic warning sounds, there is a malfunction in the Parktronic system. The Parktronic system will automatically switch off after 20 seconds and the indicator lamp in the Parktronic switch comes on. Warning! G Make sure no persons or animals are in the area in which you are maneuvering. You could otherwise injure them. ! Special attention must be paid to objects with smooth surfaces or low silhouettes (e.g. trailer couplings, painted posts, elevated crossbars or road curbs). Such objects may not be detected by the system and can damage the vehicle. 448