Mercedes-Benz C 250 Coupe, Operator'S Manual

Page: 222 / 336

Display messages Possible causes/consequences and
M
Solutions
DISTRONIC PLUS
Currently
Unavailable See
Operator's Manual
DISTRONIC is deactivated and temporarily inoperative. Possible
causes are:
R
the DISTRONIC PLUS cover in the radiator grille is dirty.
R
function is impaired due to heavy rain or snow.
R
the sensors in the bumpers are dirty.
R
the 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.
R
the system is outside the operating temperature range.
R
The on-board voltage is too low.
A warning tone also sounds.
If the display message does not disappear:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Clean the DISTRONIC PLUS cover in the radiator grille
(
Y
page 273).
X
Clean the bumpers (
Y
page 273).
X
Restart the engine.
If the system detects that the sensors are fully operational, the
display message disappears.
DISTRONIC is operational again.
DISTRONIC PLUS
Inoperative DISTRONIC PLUS is defective. BAS PLUS (Brake Assist PLUS) and
PRE-SAFE
®
Brake may be inoperative as well.
A warning tone also sounds.
X
Visit a qualified specialist workshop.
DISTRONIC PLUS
Override 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.
DISTRONIC PLUS
--- mph An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(
Y
page 148).
220
Display messages
On-board computer and displays