Mercedes-Benz E-Class 2011 Owner's Manual page 74

Should you approach an obstacle and BAS
PLUS has detected a risk of collision, BAS
PLUS calculates the braking force necessary
to avoid a rear-end collision.
If you are driving at a speed over
R
30 km/h: if you depress the brake sharply,
BAS PLUS automatically raises the brake
pressure to a value adapted to the traffic
situation.
If you are driving at a speed under
R
30 km/h: if you depress the brake, BAS
PLUS is activated. Braking will be carried
out at the last possible moment.
If BAS PLUS demands particularly high brak-
ing force, preventative passenger protection
measures (PRE-SAFE
taneously.
Keep the brake pedal depressed until the
X
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
you release the brake pedal.
R
there is no longer any danger of a rear-end
R
collision.
no obstacle is detected in front of your
R
vehicle.
BAS PLUS is then deactivated.
The radar sensor system is switched off auto-
matically in the vicinity of radio telescope
facilities ( page 398).
Y
Vehicles without COMAND and a navigation
system and vehicles for Australia: the radar
sensor system and on-board computer must
be switched off in the vicinity of radio tele-
scope facilities ( page 247).
Y
For BAS PLUS to assist you when driving, the
radar sensor system must be switched on and
operational; see "Radar sensor system" in the
index.
G
WARNING
BAS PLUS cannot always clearly identify
objects and complex traffic situations. BAS
PLUS cannot intervene in these cases.
®
) are activated simul-
Driving safety systems
There is a risk of an accident. Always pay
careful attention to the traffic situation and be
ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
dirt on the sensors or anything else cover-
R
ing the sensors
snow or heavy rain
R
interference by other radar sources
R
the possibility of strong radar reflections,
R
for example, in multi-storey car parks
a narrow vehicle travelling in front, e.g. a
R
motorbike
a vehicle travelling in front on a different
R
line
G
WARNING
BAS PLUS does not react:
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
R
As a result, BAS PLUS may not intervene in
critical situations. There is a risk of an acci-
dent. Always pay careful attention to the traf-
fic situation and be ready to brake.
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
If BAS PLUS is not available due to a malfunc-
tion in the radar sensor system, the brake
system remains available with full brake
boosting effect and BAS.
Adaptive brake lamps
i
Adaptive brake lamps are only available in
certain countries.
If you brake sharply from a speed of more
than 50 km/h or if braking is assisted by BAS
71
Z