Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 264

262 Driving and parking
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Operation with a trailer or bicycle rack: if the
electrical connection has been correctly
established, the vehicle, irrespective of speed
or the drive program selected, is not automat-
ically lowered or raised but rather remains at
normal level.
▌Function of ROAD SURFACE SCAN
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This function is not available in all countries.
The ROAD SURFACE SCAN function monitors the
road in front of your vehicle using a multifunction
camera ( page 221). ROAD SURFACE SCAN
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detects unevenness in the road surface, e.g.
bumps, before the vehicle drives over them. Chas-
sis movements are reduced and driving comfort is
increased.
ROAD SURFACE SCAN is automatically activated
if the following conditions are met:
Drive program ; is not selected.
R
No raised vehicle level is set.
R
You are driving at a speed between 7 km/h
R
and 180 km/h.
System limits
ROAD SURFACE SCAN can be impaired in the fol-
lowing situations or can stop functioning:
If the carriageway is insufficiently lit, e.g. at
R
night.
In snow, rain, fog, heavy spray, if there is glare,
R
in direct sunlight or in greatly varying light
conditions.
If the windscreen in the area of multifunction
R
camera is dirty, misted up, damaged or cov-
ered.
If the road surface has no optic structure or
R
reflects light.
If you are driving too close to the vehicle in
R
front.
If sections of the route have a very small
R
radius of curvature.
During abrupt driving manoeuvres, e.g. heavy
R
braking or sudden acceleration.
Observe the notes on cleaning the multifunction
camera ( page 368).
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P223 0288 02
▌Setting the vehicle level
& WARNING Risk of accident because vehi-
cle level is too high
Driving characteristics may be impaired.
The vehicle can drift outwards, for example,
when steering or cornering.
Choose a vehicle level which is suited to
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the driving style and the road surface
conditions.
& WARNING Risk of entrapment from vehi-
cle lowering
When lowering the vehicle, other people could
become trapped if their limbs are between the
vehicle body and the tyres or underneath the
vehicle.
Make sure no one is underneath the
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vehicle or in the immediate vicinity of the
wheel arches when the vehicle is being
lowered.