2010 Mercedes S-Class Owner's Manual - Page 337

Driving systems You can activate the DISTRONIC PLUS when the vehicle speed is above 20 mph (30 km/h). It is also possible to activate the DISTRONIC PLUS when the vehicle speed is below 20 mph (30 km/h) and the DISTRONIC PLUS has detected a preceding vehicle. If the DISTRONIC PLUS is activated, the set speed is indicated with marker ; (Y page 333) in the speedometer dial. The maximum vehicle speed you can set is 120 mph (Canada: 200 km/h). If the DISTRONIC PLUS is not activated after the DISTRONIC PLUS lever is pulled in direction of arrow ? (Y page 335), you will see the message: DISTRONIC PLUS --mph (Canada: DISTRONIC PLUS --- kmh) in the multifunction display. In the following cases you cannot activate the DISTRONIC PLUS: Rwithin 335 : Preceding vehicle, if detected ; Actual distance to the preceding vehicle = Preset distance threshold to the preceding vehicle ? Your vehicle DISTRONIC PLUS lever 2 minutes after driving off, following an engine start parking brake Rif the vehicle is secured with the electronic Rif the ESC is switched off or has switched off due to a malfunction : Setting current or higher speed ; Setting current or lower speed = Deactivating the DISTRONIC PLUS ? Activating the DISTRONIC PLUS or Rwhen the automatic transmission is in park position P, reverse gear R, or neutral position N Rif Rif Rif Rif the hood is open resuming to the last set speed A Setting following distance the driver's door is open and the driver has not fastened his or her seat belt the front passenger or a rear passenger door is open the radar sensors are switched off (Y page 236) Activating DISTRONIC PLUS G Warning! When the DISTRONIC PLUS is switched on, the vehicle can be braked. You should therefore switch off the DISTRONIC PLUS if the vehicle must be towed. Switching on while driving You can switch on the DISTRONIC PLUS when the vehicle speed is above 20 mph (30 km/h). Z Controls in detail