Mercedes-Benz A-Class Operator's Manual page 160

158 Driving and parking
Can react from a speed of approximately
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12 mph (20 km/h) up to a speed of approx‐
imately 43 mph (70 km/h).
You can prevent the assistance at any time by
actively steering.
& WARNING Risk of an accident despite
Evasive Steering Assist
Evasive Steering Assist cannot always clearly
identify objects and complex traffic situa‐
tions.
In addition, the steering support of Evasive
Steering Assist is generally not sufficient to
avoid a collision.
In such cases Evasive Steering Assist can:
give an unnecessary warning or provide
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assistance
not give a warning or not provide assis‐
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tance
Always pay careful attention to the traf‐
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fic situation; do not rely on Evasive
Steering Assist alone.
Be ready to brake and take evasive
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action if necessary.
Prevent the assistance by actively steer‐
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ing in non-critical driving situations.
Drive at an appropriate speed if pedes‐
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trians are close to the path of your vehi‐
cle.
Also observe the system limitations of Evasive
Steering Assist.
System limitations
The system may be impaired or may not function
in the following situations:
In snow, rain, fog, heavy spray, if there is
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glare, in direct sunlight or in greatly varying
ambient light conditions.
If the sensors are dirty, fogged up, damaged
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or covered.
If the sensors are impaired due to interfer‐
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ence from other radar sources, e.g. strong
radar reflections in parking garages.
If a loss of tire pressure or a defective tire
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has been detected and displayed.
Full system performance is not available for a
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few seconds after switching on the ignition
or after driving off.
The system may not react correctly:
In complex traffic situations where objects
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cannot always be clearly identified.
To pedestrians or vehicles if they move
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quickly into the sensor detection range.
To pedestrians who are hidden by other
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objects.
If the typical outline of a pedestrian cannot
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be distinguished from the background.
If a pedestrian is not detected as such, e.g.
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due to special clothing or other objects.
On bends with a tight radius.
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Setting Active Brake Assist
Requirements:
The ignition is switched on.
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