Mercedes-Benz S-Class Saloon 2021, Owner'S Manual

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If the distance to the vehicle in front is too
short and thus the lane markings cannot be
detected.
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The road is narrow and winding.
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There are obstacles on the lane or projecting
out into the lane, such as object markers.
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If transport equipment, for example a trailer or
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:
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On very tight bends and when turning.
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When crossing junctions.
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At roundabouts or toll stations.
R
When actively changing lane without switching
on the turn signal indicator.
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When the tyre pressure is too low.
&
W WARNING 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
wheel and observe the tra c carefully.
#
Always steer the vehicle paying attention
to tra c conditions.
&
W WARNING 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.
AActiv ctivating/deactiv ating/deactivating A ating Activ ctive St e Steer eering Assist ing Assist
RReq equir uirements: ements:
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ESP
®
is activated, but is not intervening.
R
Active Distance Assist DISTRONIC is activa-
ted.
Multimedia system:
4
©
5
Settings
5
Assistance
5
Driving
#
Select Ø Act. Steering Asst .
FFunction of A unction of Activ ctive Emerg e Emergency St ency Stop Assist op Assist
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.
276 276 Driving and parking