Display messages
Possible causes/consequences and
M
M
Solutions
PRE-SAFE
PRE-SAFE
inoperative
inoperative See
See Own‐
Own‐
er's Man.
er's Man.
Important PRE-SAFE
®
functions have failed. All other occupant safety
systems, e.g. airbags, remain available.
X
Consult a qualified specialist workshop.
PRE-SAFE
PRE-SAFE
Functions
Functions currently
currently
limited
limited See
See Owner's
Owner's
Manual
Manual
PRE
‑
SAFE
®
PLUS or PRE
‑
SAFE
®
Brake is temporarily inoperative.
Possible causes:
R
the function is impaired due to heavy rain or snow
R
the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
R
the system is outside the operating temperature range
R
the on-board voltage is too low
Once the causes listed above no longer apply, the display message
goes out.
PRE
‑
SAFE
®
PLUS and PRE
‑
SAFE
®
Brake are 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
Safeguard the vehicle against rolling away (
Y
page 157).
X
Restart the engine.
PRE-SAFE
PRE-SAFE
Functions limited
Functions limited
See Owner's Manual
See Owner's Manual
PRE
‑
SAFE
®
PLUS or PRE
‑
SAFE
®
Brake is unavailable due to a mal-
function. BAS PLUS with Cross-Traffic Assist may also have failed.
X
Consult a qualified specialist workshop.
Display messages
233
On
-b
oar
d
comp
ut
er
an
d
di
sp
lay
s
Z