2003 Mercedes E-Class Owner's Manual - Page 213

Controls in detail Driving systems The Parktronic system monitors the surroundings of your vehicle with six sensors in the front bumper and four sensors in the rear bumper. Range of the sensors To function properly, the sensors must be free of dirt, ice, snow and slush. Clean the sensors regularly, being careful not to scratch or damage the sensors. ! During parking maneuvers, pay special attention to objects located above or below the height of the sensors (e.g. planters or trailer hitches). The Parktronic system will not detect such objects at close range and damage to your vehicle or the object may result. Ultrasonic signals from outside sources (e.g. truck air brakes or jackhammers) may impair the operation of the Parktronic system. 1 Sensors in the front bumper Front sensors Center Corners Rear sensors Center Corners approx. 48 in (120 cm) approx. 32 in (80 cm) approx. 40 in (100 cm) approx. 23 in (60 cm) Minimum distance Center Corners approx. 8 in (20 cm) approx. 6 in (15 cm) If the system encounters an obstacle in this range, all the warning lamps light up and you hear a warning signal. If the obstacle is closer than the minimum distance, the actual distance may no longer be indicated by the system. 213