Mercedes-Benz S-CLASS 2017 Operator's Manual page 251

Display messages
Traffic Sign Assist
Currently Unavaila‐
ble See Operator's
Manual
Traffic Sign Assist
Inoperative
ë
Off
DISTRONIC PLUS Off
DISTRONIC PLUS Now
Available
DISTRONIC PLUS Cur‐
rently Unavailable
See Operator's Man‐
ual
Possible causes/consequences and M Solutions
Traffic Sign Assist is temporarily inoperative.
Possible causes are:
the windshield in the camera's field of vision is dirty
R
visibility is impaired due to heavy rain, snow or fog
R
Clean the windshield.
X
If the system detects that the camera is fully operational, the display
message disappears.
Traffic Sign Assist is operational again.
Traffic Sign Assist is malfunctioning.
Visit a qualified specialist workshop.
X
The HOLD function is deactivated. the vehicle is skidding.
A warning tone also sounds.
Reactivate the HOLD function later (
X
DISTRONIC PLUS has been deactivated.
If a warning tone also sounds, DISTRONIC PLUS has deactivated auto-
matically ( page 171).
Y
DISTRONIC PLUS is operational again after having been temporarily
unavailable. You can now reactivate DISTRONIC PLUS (
DISTRONIC PLUS is temporarily inoperative.
Steering Assist and Stop&Go Pilot are temporarily inoperative.
Possible causes are:
the radar sensor system is temporarily inoperative, e.g. due to elec-
R
tromagnetic radiation emitted by nearby TV or radio stations 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.
When the causes stated above no longer apply, the display message
disappears.
DISTRONIC PLUS is operational again.
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.
Secure the vehicle against rolling away (
X
Restart the engine.
X
Display messages
page 178).
Y
page 171).
Y
page 162).
Y
249
Z