Display messages
Possible causes/consequences and
M
M
Solutions
G
Inoperative
Inoperative
One or more main features of the Mercedes-Benz Contact system are
malfunctioning.
X
Consult a qualified specialist workshop.
Active
Active Brake
Brake Assist
Assist
Functions
Functions currently
currently
limited
limited See
See Owner's
Owner's
Manual
Manual
Active Brake Assist with cross-traffic function is temporarily inopera-
tive.
Possible causes:
R
The radar sensor system is temporarily inoperative, e.g. due to
electromagnetic 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.
Active Brake Assist with cross-traffic function or PRE
‑
SAFE
®
PLUS is
functional again.
If the display message does not disappear:
X
Stop the vehicle, paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (
Y
page 168).
X
Restart the engine.
Active
Active Brake
Brake Assist
Assist
Functions limited
Functions limited
See Owner's Manual
See Owner's Manual
Active Brake Assist is unavailable due to a malfunction. Adaptive
Brake Assist may also have failed.
X
Consult a qualified specialist workshop immediately.
PRE-SAFE inopera‐
PRE-SAFE inopera‐
tive see Owner's
tive see Owner's
Manual
Manual
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. airbags, remain available.
X
Consult a qualified specialist workshop immediately.
264
Display messages
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