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PRE-SAFE
PRE-SAFE
inoperative See
inoperative See
Owner's Manual
Owner's Manual
PRE-SAFE
PRE-SAFE
Functions cur‐
Functions cur‐
rently limited
rently
limited See
Owner's Manual
Owner's Manual
PRE-SAFE
PRE-SAFE
Functions limited
Functions limited
See Owner's Manual
See Owner's Manual
6
Restraint sys.
Restraint
sys. mal‐
function Consult
function Consult
workshop
workshop
Possible causes/consequences and M M Solutions
Important functions of PRE-SAFE
safety systems, e.g. airbags, remain available.
Visit a qualified specialist workshop immediately.
X
®
PRE‑SAFE
Brake is deactivated or temporarily inoperative. Pos-
sible causes:
See
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
AMG vehicles: ESP
R
the system is outside the operating temperature range
R
the on-board voltage is too low
R
Once the causes listed above no longer apply, the display message
goes out.
®
PRE‑SAFE
Brake is operational again.
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
Clean the sensors in the radiator grille and the bumper
X
(
page 290).
Y
Restart the engine.
X
AMG vehicles: reactivate ESP
X
®
PRE-SAFE
Brake is inoperative due to a fault. BAS PLUS or the
distance warning signal may also have failed.
Visit a qualified specialist workshop.
X
The restraint system is malfunctioning. The 6 warning lamp
also lights up in the instrument cluster.
mal‐
G
WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
Visit a qualified specialist workshop.
X
For further information about the restraint system, see
(
page 40).
Y
®
have failed. All other occupant
®
is deactivated
®
(
page 64).
Y
page 162).
Y
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