2009 Mercedes CL-Class Owner's Manual - Page 485

Practical hints Vehicle status messages in the multifunction display Display messages DISTRONIC PLUS - - - mph Possible cause/consequence One of the activation conditions for the DISTRONIC Plus has not been fulfilled. For example, you have attempted to set a speed below 20 mph (30 km/h). The Park Assist is deactivated because the area around the sensors in the front or the rear bumper is dirty. The Park Assist is deactivated because the battery voltage is insufficient. The Park Assist is switched off because the radar sensor system is temporarily inoperative due to electromagnetic interference near television and radio transmitter stations, toll stations, speed measuring systems, etc. Park Assist Inoperative The Park Assist is unavailable due to a malfunction. Possible solution X Drive faster than 20 mph (30 km/h), if the situation allows, and set the speed. X Check the activation conditions for the DISTRONIC Plus (Y page 355). X Park Assist Currently Unavailable See Oper. Manual Clean the front and rear bumper (Y page 465). Have the battery checked at an authorized Mercedes-Benz Center. Wait until the message in the multifunction display disappears. X X X Contact an authorized Mercedes-Benz Center as soon as possible. Z 483