Mercedes-Benz S-Class 2019 Operator's Manual page 208

206 Driving and parking
To increase/reduce speed: press rocker
#
switch 3 up/down to the pressure point.
The stored speed is increased or reduced by
1 mph (1 km/h).
or
Press and hold rocker switch
#
the pressure point.
The stored speed is increased or reduced in
increments of 1 mph (1 km/h).
or
Press rocker switch 3 beyond the pressure
#
point.
The stored speed is increased or reduced by
5 mph (10 km/h).
or
Press and hold rocker switch
#
pressure point.
The stored speed is increased or reduced in
increments of 5 mph (10 km/h).
To increase or reduce the specified dis‐
#
tance from the vehicle in front: press
rocker switch 2 up or down.
Function of Active Speed Limit Assist
% The availability of the following function is
country-dependent.
3 up/down to
3 beyond the
If a change in the speed limit is detected and
Active Distance Assist DISTRONIC is activated,
Active Distance Assist DISTRONIC adapts this
new speed as the stored speed.
The driven speed is adjusted when the vehicle is
level with the traffic sign at the latest. In the
case of signs indicating entry into an urban area,
the speed is adapted beforehand. The speed
limit display in the Instrument Display is always
updated when the vehicle is level with the traffic
sign.
If there is no speed restriction on an unlimited
stretch of road (e.g. on a freeway), the recom‐
mended speed is adopted as the stored speed.
The system uses the speed stored on an unlimi‐
ted stretch of road as the recommended speed.
If you do not alter the stored speed on an unlimi‐
ted stretch of road, the recommended speed is
80 mph (130 km/h).
If Active Distance Assist DISTRONIC has been
put into passive mode by pressing the accelera‐
tor pedal, only speed limits which are higher
than the set speed are adopted.
Active Speed Limit Assist is only an aid. The
driver is responsible for keeping a safe distance
to the vehicle in front, for vehicle speed and for
braking in good time. The maximum permissible
speed also depends on factors such as the road
surface and traffic conditions.