Display Message - Mercedes-Benz B-Class Electric Drive Operator's Manual

Display messages
174
Display messages
Active Brake Active Brake Assist
Functions Currently Functions Currently
Limited See Opera‐ Limited See Opera‐
tor's Manual tor's Manual
Active Brake Active Brake
Assist: System Assist: System Inop‐
erative erative
Radar Radar Sensors Sensors Dirty
See Operator's Man‐ See Operator's Man‐
ual ual
ã
Acoustic Vehicle Acoustic Vehicle
Indication Inopera‐ Indication Inopera‐
tive tive
Possible causes/consequences and M M Solutions
Assist Active Brake Assist is temporarily inoperative.
Possible causes are:
the radar sensor system is temporarily inoperative, e.g. due to elec-
R
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
the system is outside the operating temperature range
R
the on-board voltage is too low
R
When the causes stated above no longer apply, the display message
disappears.
Active Brake Assist is operational again.
If the display message does not disappear:
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
Start the drive system again.
X
Active Brake Assist is unavailable due to a malfunction. Situation-
Inop‐ dependent parking assistance may also have failed.
Visit a qualified specialist workshop immediately.
X
Dirty The radar sensor system is malfunctioning.
Possible causes are:
Dirt on sensors
R
Heavy rain or snow
R
When driving on inter-urban roads without traffic or infrastructure,
R
e.g. in desert-like areas
Active Brake Assist is malfunctioning or is temporarily unavailable.
A warning tone also sounds.
Active Brake Assist is available again once the cause of the problem is
no longer present. The display message disappears.
If the display message does not disappear:
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
Switch off the drive system.
X
Clean all sensors (
X
Start the drive system again.
X
The display message disappears.
The sound generator is not working. The vehicle can still be driven;
however, no vehicle sounds can be generated. As a result, your vehicle
may not be heard by other road users until it is very close to them, or
it may not be heard at all.
Drive with particular care, allowing for the possibility that other road
X
users may behave unpredictably.
Visit a qualified specialist workshop.
X
Y
Y
page 237).
Y
page 128).
page 128).