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Display messages
DISTRONIC PLUS cur‐
rently unavailable
See Owner's Manual
DISTRONIC PLUS
inoperative
DISTRONIC PLUS sus‐
pended
DISTRONIC PLUS
- - - km/h
DISTRONIC PLUS and
SPEEDTRONIC inop‐
erative
Possible causes/consequences and M Solutions
DISTRONIC PLUS is temporarily inoperative.
Possible causes:
the function is impaired due to heavy rain or snow.
R
the sensors in the radiator trim and 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.
Once the causes listed above no longer apply, the display message
goes out.
DISTRONIC is operational again.
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
Secure the vehicle against rolling away (
X
Clean the sensors in the radiator grille and the bumper
(
Y
page 345).
X
Restart the engine.
DISTRONIC PLUS is faulty.
BAS PLUS and PRE-SAFE
The following may have also failed:
BAS PLUS
R
®
PRE-SAFE
Brake
R
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
Remove your foot from the accelerator pedal.
An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(
Y
page 192).
DISTRONIC PLUS and SPEEDTRONIC are faulty. A warning tone
also sounds.
X
Visit a qualified specialist workshop.
Display messages
Y
page 180).
®
Brake may also have failed.
283
Z
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