Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 234

232 Driving and parking
System limits
The system may be impaired or may not function
in the following situations, for example:
In snow, rain, fog, heavy spray, if there is glare,
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in direct sunlight or in greatly varying light
conditions.
The windscreen in the area of the camera is
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dirty, misted up, damaged or covered.
If the radar sensors are dirty or covered.
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In multi-storey car parks or on roads with
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steep uphill or downhill gradients.
If there are narrow vehicles in front, such as
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bicycles or motorcycles.
In addition, on slippery roads, braking or acceler-
ating can cause one or several wheels to lose
traction and the vehicle could then skid.
Do not use Active Distance Assist DISTRONIC in
these situations.
& WARNING Risk of accident from accelera-
tion or braking by Active Distance Assist
DISTRONIC
Active Distance Assist DISTRONIC may accel-
erate or brake in the following cases, for
example:
If the vehicle pulls away using Active Dis-
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tance Assist DISTRONIC.
If the stored speed is called up and is con-
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siderably faster or slower than the cur-
rently driven speed.
If Active Distance Assist DISTRONIC no
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longer detects a vehicle in front or does
not react to relevant objects.
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.
P223 0288 02
& WARNING Risk of accident due to insuffi-
cient deceleration by Active Distance
Assist DISTRONIC
Active Distance Assist DISTRONIC brakes your
vehicle with up to 50% of the possible deceler-
ation. If this deceleration is not sufficient,
Active Distance Assist DISTRONIC alerts you
with a visual and acoustic warning.
Adjust your speed and maintain a suita-
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ble distance from the vehicle in front.
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 has a limited reaction:
when driving on a different lane or when
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changing lanes