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208 Driving and parking
front, vehicles detected ahead and speed restric-
tions ahead are taken into account.
Route-based speed adaptation can be activated in
the multimedia system (
page 209).
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The following route events are taken into account:
Bends
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Roundabouts
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T-junctions
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Turns and exits
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Traffic jams ahead (only with Live Traffic )
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Also, the speed is reduced if the turn signal indi-
cator is switched on and one of the following sit-
uations is detected:
Turning at junctions
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Driving on slowing-down lanes
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Driving on lanes adjacent to slowing-down
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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 adaptation
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 signal
indicator is switched on, the selected route is
confirmed and further speed adjustment is activa-
ted.
Speed adaptation is cancelled in the following
cases:
If the turn signal indicator is switched off
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before the route event and it is therefore
assumed that the route event is not relevant
to the driver.
If the driver depresses the accelerator or
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brake pedal during the process.
System limits
Route-based speed adaptation does not take right
of way regulations into account. The driver is
responsible for complying with road traffic regula-
tions and driving at a suitable speed.
In difficult conditions, the speed selection made
by the system may not always be suitable. This
applies to the following situations, forexample:
the road's course not clearly visible
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Road narrowing
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varying maximum permissible speeds in indi-
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vidual lanes, forexample at toll stations
wet road surfaces, snow or ice
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In these situations the driver must intervene
accordingly.
& WARNING Risk of accident in spite of
route-based speed adaptation
Route-based speed adaptation can malfunc-
tion or be temporarily unavailable in the fol-
lowing situations:
If the driver does not follow the calculated
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route
If map data is not up-to-date or available
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In the event of roadworks
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In bad weather or road conditions
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