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stored speed. The system uses the speed stored
on an unlimited stretch of road as the recom‐
mended speed. If you do not alter the stored
speed on an unlimited stretch of road, the rec‐
ommended speed is 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.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recog‐
nise dangers (
page 180).
/
System limits
The system limits of Traffic Sign Assist apply to
the detection of traffic signs (
/
Speed limits below 20 km/h are not automati‐
cally adopted by the system as the stored speed.
Temporary speed restrictions (e.g. for a certain
time or due to weather conditions) cannot be
properly detected by the system. The maximum
permissible speed applying to a vehicle with a
trailer is not detected by the system.
Adjust the speed in these situations.
& WARNING Risk of accident due to Active
Speed Limit Assist adapting the vehicle's
speed
The speed adopted by Active Speed Limit
Assist may be too high or incorrect in some
individual cases, such as:
at speed limits below 20 km/h
R
in wet conditions or in fog
R
when towing a trailer
R
Ensure that the driven speed complies
#
with traffic regulations.
Adjust the driving speed to suit current
#
traffic and weather conditions.
page 210).
Function of route-based speed adaptation
When Active Distance Assist DISTRONIC is acti‐
vated, the vehicle speed will be adapted accord‐
ingly to the route events ahead. Depending on
the drive program selected, the vehicle negoti‐
ates a route event ahead in an economical, com‐
fortable or dynamic manner. When the route
event has been passed, the vehicle accelerates
again to the stored speed. The set distance to
Driving and parking 199
the vehicle in front, vehicles detected ahead and
speed restrictions ahead are taken into account.
You can activate and deactivate route-based
speed adaptation in the multimedia system
(
page 200).
/
The following route events are taken into
account:
Bends
R
T-junctions, roundabouts and toll stations
R
Turns and exits
R
Traffic jams ahead (only with Live Traffic
R
Information )
%
When the toll station is reached, Active Dis‐
tance Assist DISTRONIC adopts the speed as
the stored speed.
Also, the speed is reduced if the turn signal indi‐
cator to change lanes is switched on and one of
the following situations is detected:
Turning off at junctions
R
Driving on slowing-down lanes
R
Driving on lanes adjacent to slowing-down
R
lanes
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