Mercedes-Benz C-Coupe 2015 Owners Manual - Manual (Page 214)

Display messages Possible causes/consequences and M M Solutions
PRE-SAFE PRE-SAFE
Functions Cur‐
Functions Cur‐
rently rently Limited Limited See See
Operator's Manual Operator's Manual
PRE-SAFE ® Brake is temporarily inoperative. Possible causes are:
R function is impaired due to heavy rain or snow.
R the sensors in the radiator trim and the bumper are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R AMG vehicles: ESP ® is deactivated.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
When the causes stated above no longer apply, the display mes-
sage disappears.
PRE‑SAFE
® Brake 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 (
Y
page 151).
X
Clean the sensors in the radiator grill and the bumper
(
Y
page 281).
X
Restart the engine.
X AMG vehicles: reactivate ESP ® (
Y
page 68).
PRE-SAFE PRE-SAFE
Functions Limited
Functions Limited
See See Operator's Operator's Man‐ Man‐
ual ual
PRE-SAFE ® Brake is inoperative due to a malfunction. BAS PLUS or
the distance warning signal may also have failed.
X Visit a qualified specialist workshop.
6
SRS Malfunction SRS Malfunction
Service required Service required
There is a malfunction in the SRS (Supplemental Restraint Sys-
tem). The 6 warning lamp also lights up in the instrument clus-
ter.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X
Visit a qualified specialist workshop.
For further information about SRS, see (
Y
page 41).
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