Mercedes-Benz A-Class Operator's Manual page 165

Always carefully observe the traffic con‐
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ditions and be ready to brake at all
times.
Take into account the traffic situation
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before calling up the stored speed.
& WARNING Risk of accident due to insuf‐
ficient deceleration by Active Distance
Assist DISTRONIC
Active Distance Assist DISTRONIC brakes
your vehicle with up to 50 % of the maximum
possible deceleration. If this deceleration is
not sufficient, Active Distance Assist
DISTRONIC alerts you with a visual and
acoustic warning.
In these cases, adjust your speed and
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keep a sufficient distance.
Brake the vehicle yourself and/or take
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evasive action.
& WARNING Risk of accident if detection
function of Active Distance Assist
DISTRONIC is impaired
Active Distance Assist DISTRONIC does not
react or only partially reacts:
When driving on a different line to the
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vehicle ahead or when changing lanes
To pedestrians, animals, bicycles or sta‐
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tionary vehicles, or unexpected obstacles
To traffic and the surroundings
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To oncoming vehicles and crossing traffic
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Active Distance Assist DISTRONIC can nei‐
ther give warnings nor intervene in such sit‐
uations.
Always observe the traffic conditions
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carefully and react accordingly.
Operating Active Distance Assist DISTRONIC
Requirements:
The vehicle has been started.
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The electric parking brake is released.
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Driving and parking 163
ESP ® is activated and is not intervening.
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The transmission is in position h.
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All the doors are closed.
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Check of the radar sensor system has been
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successfully completed (vehicle traveling
faster than 12 mph (20 km/h)).
To activate/deactivate Active Distance
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Assist DISTRONIC: press button 1.