2004 Mercedes SL-Class Owner's Manual - Page 213

Controls in detail Driving systems Each warning indicator is divided into six yellow and two red segments for either side of the vehicle. The Parktronic system is ready when the border around the indicator is illuminated. The position of the gear selector lever determines which warning indicators will be activated. Gear selector lever position D R or N P Warning indicator Front area activated Rear area activated Neither activated Front area: An intermittent acoustic warning will sound as the seventh segment comes on and a constant acoustic warning lasting a maximum of three seconds will sound for the eighth segment. Rear area: An intermittent acoustic warning will sound when the first segment comes on. This signal quickens with each additional segment lit. When the eighth segment illuminates, the acoustic warning becomes a constant signal. The signal is canceled when the gear selector lever is placed in position D or P. Switching the Parktronic system on/off You can switch off the Parktronic system manually. The Parktronic switch is located in the lower section of the center console. 1 Parktronic on/off switch 2 Indicator lamp Switching off the Parktronic system Press switch 1. Indicator lamp 2 comes on. Switching on the Parktronic system Press switch 1 again. Indicator lamp 2 goes out. As your vehicle approaches an object, one or more segments will come on, depending on the distance. When the eighth segment comes, you have reached the minimum distance. 212