2007 Mercedes CL-Class Owner's Manual - Page 427

Controls in detail Driving systems Driving with DISTRONIC Plus This section describes a number of driving situations where special precaution is required on the part of the driver. Be prepared to brake in such situations. Braking will deactivate the DISTRONIC Plus system. Warning! "DISTRONIC PLUS currently unavailable See Oper. Manual" appears in the multifunction display. For cleaning and care of the DISTRONIC Plus sensor, see "Cleaning the DISTRONIC Plus*/ PRE-SAFE® Brake* system sensors (USA only)"( page 558). DISTRONIC Plus regulates only the distance between your vehicle and those directly ahead of it. It may not register stationary objects in the road, e.g.: a stopped vehicle in a traffic jam a disabled vehicle an oncoming vehicle The driver must always be alert, observe all traffic and intercede as required by means of steering or braking the vehicle. G i If the message: "DISTRONIC PLUS currently unavailable See Oper. Manual" disappears during driving and the last speed stored flashes for approximately 5 seconds, the dirt (e.g. slush) has dissolved; DISTRONIC Plus is available again. DISTRONIC Plus works to maintain the speed selected by the driver unless a moving obstacle proceeding directly ahead of it in the same travel direction is detected (e.g. following another vehicle ahead of you at your set distance). This means that: Your vehicle can pass another vehicle after you change lanes. While in a sharp turn or if the vehicle in front is in a sharp turn, DISTRONIC Plus could lose sight of a vehicle traveling in front of it, then your vehicle could accelerate to the previously selected speed. Warning! G DISTRONIC Plus should not be used in snowy or icy road conditions. The most likely cause for a malfunctioning system is a dirty sensor (located behind the hood grille), especially at times of snow and ice or heavy rain. In such a case, DISTRONIC Plus will switch off, and the message: Another cause might be that the radar sensors have been manually switched off in the instrument cluster control system. Please verify that the radar sensors are switched on ( page 272). 426