2003 Mercedes CLK-Class Owner's Manual - Page 208

Controls in detail Driving systems PARKTRONIC system* Warning! The Parktronic system monitors the surroundings of your vehicle with six sensors in the front bumper and four sensors in the rear bumper. Warning! G G Parktronic 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 rests with the driver. Special attention must be paid to objects with smooth surfaces or low silhouettes (e.g. trailer couplings, painted posts or street curbs). Such objects may not be detected by the system and can damage the vehicle. The operational function of the Parktronic can be affected by dirty sensors, especially at times of snow and ice, see "Cleaning the Parktronic* system sensors" ( page 272). Interference caused by other ultrasonic signals (e.g. working jackhammers or the air brakes of trucks) can cause the system to send erratic indications, and should be taken into consideration. Make sure that no persons or animals are in the area in which you are maneuvering. You could otherwise injure them. The Parktronic system is an electronic aid designed to assist the driver during parking maneuvers. It visually and audibly indicates the relative distance between the vehicle and an obstacle. The Parktronic system is automatically activated when you switch on the ignition and release the parking brake. The Parktronic system deactivates at speeds over 11 mph (18 km/h). At lower speeds the Parktronic system turns on again. 1 Sensors in the front bumper 208