Mercedes-Benz M-Class Owner's Manual page 279

Display messages
276
Display messages
DISTRONIC PLUS
currently unavail‐
able See Owner's
Manual
DISTRONIC PLUS
inoperative
DISTRONIC PLUS
override
DISTRONIC PLUS
--- km/h
DISTRONIC PLUS and
SPEEDTRONIC
inoperative
Possible causes/consequences and M Solutions
DISTRONIC is deactivated and temporarily inoperative. Possible
causes:
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
R
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
the system is outside the operating temperature range.
R
the on-board voltage is too low.
R
A warning tone also sounds.
If the display message does not disappear:
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Apply the electric parking brake.
X
Clean the DISTRONIC PLUS cover in the radiator grille
X
( page 327).
Y
Clean the bumpers (
X
Restart the engine.
X
If the system detects that the sensors are fully operational, the
display message disappears.
DISTRONIC is operational again.
DISTRONIC PLUS is faulty. BAS PLUS and PRE-SAFE
also have failed.
A warning tone also sounds.
Visit a qualified specialist workshop.
X
You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
Take your foot off the accelerator pedal.
X
An activation condition for DISTRONIC PLUS is not fulfilled.
Check the activation conditions for DISTRONIC PLUS
X
( page 174).
Y
DISTRONIC PLUS and SPEEDTRONIC are faulty. A warning tone
also sounds.
Visit a qualified specialist workshop.
X
page 327).
Y
®
Brake may