Users Manual Part 3

Table Of Contents
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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:
R
In the wet or in fog
R
When towing a trailer
#
Ensure that the driven speed complies
with traffic regulations.
#
Adjust the driving speed to suit current
traffic and weather conditions.
Function of route-based speed adaptation
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The following function is country-dependent
and only available in conjunction with the
Driving Assistance Package.
When Active Distance Assist DISTRONIC is acti‐
vated, the vehicle speed will be adjusted accord‐
ingly to the route events ahead. Depending on
the drive program selected, the vehicle negoti‐
ates a route event ahead in a fuel-saving, com‐
fortable or dynamic manner. When the route
event has been passed, the vehicle accelerates
again to the stored speed. The set distance to
the vehicle in front, vehicles detected ahead and
speed restrictions ahead are taken into account.
Route-based speed adaptation can be activated
in the multimedia system (/ page 225).
The following route events are taken into
account:
R
Bends
R
Roundabouts and toll stations
R
T-junctions
R
Turns and exits
R
Traffic jams ahead (only with Live Traffic
(/ page 355))
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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:
R
Turning off at junctions
R
Driving on slowing-down lanes
R
Driving on lanes adjacent to slowing-down
lanes
The driver is responsible for choosing the right
speed and observing other road users. This
applies in particular to junctions, roundabouts
and traffic lights, as route-based speed adapta‐
tion does not brake the vehicle to a standstill.
If a corresponding route event is detected while
route guidance is active, the first speed adjust‐
ment is carried out automatically. If the turn sig‐
nal indicator is switched on, the selected route is
confirmed and further speed adjustment is acti‐
vated.
Speed adjustment is cancelled in the following
cases:
R
If the turn signal indicator is switched off
before the route event and it is therefore
assumed that the route event is not relevant
to the driver.
R
If the driver depresses the accelerator or
brake pedal during the process.
224
Driving and parking