Display messages
Possible causes/consequences and
M
M
Solutions
Active
Active Brake
Brake Assist
Assist
Functions
Functions currently
currently
limited
limited See
See Owner's
Owner's
Manual
Manual
Active Brake Assist or PRE
‑
SAFE
®
PLUS 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
electromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation.
R
Mercedes-AMG vehicles: ESP
®
is deactivated.
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 or PRE
‑
SAFE
®
PLUS is operative 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.
X
Mercedes-AMG vehicles: reactivate ESP
®
(
Y
page 73).
Active
Active Brake
Brake Assist
Assist
Functions limited
Functions limited
See Owner's Manual
See Owner's Manual
Active Brake Assist with cross-traffic function or PRE
‑
SAFE
®
PLUS is
not available due to a fault.
X
Consult a qualified specialist workshop immediately.
Display messages
265
On
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Z