2001 Mercedes CL-Class Owner's Manual - Page 288

The obstacle may not be recognized if outside the shaded sensor field, and no longer be indicated when approaching it any closer (warning indicators go out). Parktronic malfunction All red segments of the warning indicators light up, and a warning sounds for 3 seconds, if Parktronic does not function properly. The indicator lamp in the switch lights up and the system switches off automatically! A dirty sensor could be the reason. See page 378 for instructions on cleaning the sensors in the bumpers. After cleaning the sensors, turn electronic key in starter switch to position 2. If the defect continues to be displayed, have the system checked at your authorized Mercedes-Benz Center. Parktronic switch 3 The switch is located on the center console. 1 Parktronic switched off 2 Parktronic switched on 3 Indicator lamp - comes on when Parktronic is switched off The parktronic system is switched on again when turning the electronic key in starter switch position 2. Parking system Instruments and controls Operation Driving 283 Instrument cluster display Practical hints Car care Technical data Index