2011 Mercedes S-Class Owner's Manual - Page 408
2011 Mercedes S-Class Manual
Page 408 highlights
406 Display messages Display messages Possible causes/consequences and M Solutions DISTRONIC PLUS is deactivated and is temporarily inoperative if: Rthe Rthe On-board computer and displays DISTRONIC PLUS Currently Unavailable See Oper. Manual DISTRONIC PLUS cover in the radiator grill is dirty. sensors in the bumpers are dirty. Rthe radar sensor system is temporarily inoperative, e.g. due to electromagnetic radiation emitted by nearby TV or radio stations or other sources of electromagnetic radiation. Rits function is impaired due to heavy rain or snow. Rthe system is outside the operating temperature range. Rthe on-board voltage is too low. A warning tone also sounds. DISTRONIC PLUS is operational again and the display message disappears if: Rthe Rthe dirt (e.g. slush) drops away while the vehicle is in motion. system detects that the sensors are fully available again. Rthe system is within the operating temperature range. If the display message continues to be displayed: X Clean the DISTRONIC PLUS cover in the radiator grill (Y page 456). X Clean the bumpers (Y page 456). X Restart the engine. DISTRONIC PLUS Inoperative DISTRONIC PLUS Override DISTRONIC PLUS --- mph DISTRONIC PLUS is faulty. BAS PLUS and PRE-SAFE® Brake may also have failed. A warning tone also sounds. X Visit a qualified specialist workshop. You have depressed the accelerator pedal. DISTRONIC PLUS is no longer controlling the speed of the vehicle. X Take your foot off the accelerator pedal. An activation condition for DISTRONIC PLUS is not fulfilled. X Check activation conditions for DISTRONIC PLUS (Y page 325).