Mercedes-Benz A-Class Operator's Manual page 168

166 Driving and parking
& WARNING Risk of accident in spite of
route-based speed adjustment
Route-based speed adjustment might mal‐
function or be temporarily unavailable in the
following situations:
If map data is not up to date or available
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If you do not follow the selected route
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guidance
If the set route is re-planned
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In road construction areas
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When towing a trailer
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In bad weather or road conditions
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If the accelerator pedal is depressed
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Adjust the speed to the traffic situation.
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Active Steering Assist
Function of Active Steering Assist
Active Steering Assist assists the driver at
speeds up to 130 mph (210 km/h) and helps the
driver to stay in the center of the lane by means
of moderate steering interventions. The system
orients itself using detected lane markings.
Depending on the speed driven, Active Steering
Assist uses the vehicles ahead as a reference. If
the detection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches to passive mode. The system does not
provide support in the form of steering interven‐
tions.
The driver is required to keep their hands on
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the steering wheel at all times and be able to
intervene at any time to correct the course of
the vehicle and keep it in lane.
The status of Active Steering Assist is dis‐
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played in the status bar of the multifunction
display.
Steering and contact detection
The driver is required to keep their hands on the
steering wheel at all times and to be able to
intervene at any time. The driver must expect a
change from active to passive mode or vice
versa at any time.