2010 Mercedes C-Class Owner's Manual - Page 188

186 Driving systems Controls in detail Front sensors Center Corners Rear sensors Center Corners approx. 48 in (120 cm) approx. 32 in (80 cm) approx. 40 in (100 cm) approx. 24 in (60 cm) Front area warning indicators Minimum distance Center Corners approx. 8 in (20 cm) approx. 6 in (15 cm) Rear area warning indicators If the Parktronic system detects an obstacle in this range, all the distance warning segments illuminate 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 Parktronic system. Each warning indicator is divided into five yellow and two red distance segments for left side : and right side ; of the vehicle. The Parktronic system is ready to measure when the yellow readiness indicators = are illuminated. The current transmission position determines which warning indicator will be activated. Manual transmission: Current transmission position Forward gear or neutral position Reverse gear Warning indicator Warning indicators Visual signals indicate the relative distance between the sensors and an obstacle. Front area activated Front and rear area activated