2009 Mercedes CL-Class Owner's Manual - Page 478

Practical hints Vehicle status messages in the multifunction display Text messages Safety systems Display messages PRE-SAFE Inoperative See Oper. Manual Function Currently Limited See Oper. Manual Possible cause/consequence The system itself has failed. All other occupant safety systems, such as the air bags, are still available. PRE-SAFE® Possible solution X Contact an authorized Mercedes-Benz Center as soon as possible. PRE-SAFE The PRE-SAFE® Brake is switched off and The PRE-SAFE® Brake becomes operational is temporarily unavailable. again and the message in the multifunction ® Brake is deactivated if: display disappears when: The PRE-SAFE Rdirt on the radiator grille has fallen off while Rthe DISTRONIC Plus cover in the driving (e.g. slush or snow) radiator grille is dirty Rthe system recognizes full sensor availability Rthe area around the sensors in the front (due to lessening rain or the road surface or the rear bumper is dirty drying) Rits function is impaired as a result of Rthe system is within the operating temperature heavy precipitation range Rthe radar sensor system is temporarily If the message in the multifunction display does inoperative due to electromagnetic not disappear: interference near television and radio X Clean the DISTRONIC Plus cover in the radiator transmitter stations, toll stations, grille (Y page 465). speed measuring systems, etc. X Clean the front and the rear bumper Rthe system is out of the operating (Y page 465). temperature range X Restart the vehicle. Rthe battery voltage is insufficient X Wait until the battery recovers. 476