Mercedes-Benz S-Class Saloon 2021 Owner's Manual page 279

276 Driving and parking
276
If the distance to the vehicle in front is too
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short and thus the lane markings cannot be
detected.
The road is narrow and winding.
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There are obstacles on the lane or projecting
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out into the lane, such as object markers.
If transport equipment, for example a trailer or
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bicycle rack, is attached to the trailer hitch
and the electrical connection has been cor-
rectly established.
The system does not provide assistance in the fol-
lowing conditions:
On very tight bends and when turning.
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When crossing junctions.
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At roundabouts or toll stations.
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When actively changing lane without switching
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on the turn signal indicator.
When the tyre pressure is too low.
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& W W ARNING
ARNING Risk of accident if Active Steer-
ing Assist unexpectedly stops functioning
If the system limits of Active Steering Assist
are reached there is no guarantee that the
system will remain active or will keep the vehi-
cle in lane.
Always keep your hands on the steering
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wheel and observe the tra c carefully.
Always steer the vehicle paying attention
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to tra c conditions.
& W W ARNING
ARNING Risk of accident if Active Steer-
ing Assist unexpectedly intervenes
The detection of lane markings and objects
may malfunction and cause unexpected steer-
ing interventions.
Steer according to tra c conditions.
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A A ctiv ctivating/deactiv ating/deactivating A ating Activ ctive St e Steer
R R eq equir uirements: ements:
®
ESP is activated, but is not intervening.
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Active Distance Assist DISTRONIC is activa-
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ted.
Multimedia system:
©
4
Driving
5
Select Ø
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F F unction of A unction of Activ
Active Emergency Stop Assist uses touch sensors
to monitor whether the driver holds the steering
wheel and initiates an emergency stop if neces-
sary.
If Active Steering Assist is deactivated, the accel-
erator and brake pedal are monitored as well as
the steering wheel. A warning is issued when the
steering wheel is not being held or when a pedal
is not depressed, and the vehicle is in danger of
leaving the lane.
eering Assist ing Assist
Settings Assistance
5 5
Act. Steering Asst.
ctive Emerg e Emergency St ency Stop Assist op Assist