Up to a speed of about 45 mph (70 km/h), the
distance warning function can also react to
stationary obstacles, such as stopped or
parked vehicles.
If you approach an obstacle and the distance
warning function detects a risk of a collision,
the system will alert you both visually and
acoustically.
In particular, the detection of obstacles can
be impaired in the case of:
R
there is dirt on the sensors or anything else
covering the sensors
R
it is snowing or raining heavily
R
there is interference from other radar sour-
ces
R
there are strong radar reflections, for
example in parking garages
R
a narrow vehicle traveling in front, e.g. a
motorbike
R
a vehicle traveling in front on a different line
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensor 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.
Activating/deactivating the distance
warning function
When you switch on the engine, the distance
warning function switches on after a few sec-
onds.
X
To deactivate: press the æ button
(Y page 37).
Vehicles without steering wheel but-
tons: the Ä warning lamp in the instru-
ment cluster lights up and the OFFOFF message
flashes.
Vehicles with steering wheel buttons:
the Ä warning lamp in the instrument
cluster lights up and the Distance Warn‐Distance Warn‐
ing Deactivateding Deactivated message appears.
X
To activate: press the æ button again
(Y page 37).
Vehicles without steering wheel but-
tons: the Ä warning lamp in the instru-
ment cluster goes out and the ONON message
flashes.
Vehicles with steering wheel buttons:
the Ä warning lamp in the instrument
cluster goes out and the Distance Warn‐Distance Warn‐
ing Activateding Activated message appears in the
multifunction display.
Adaptive Brake Assist
i
Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 57).
G
WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
R
intervene unnecessarily
R
not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
G
WARNING
Adaptive Brake Assist does not react:
R
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
to stationary obstacles
R
when cornering
As a result, the Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
162
Driving systems
Driving and parking
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