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ates or decelerates. If you do not know the
stored speed, the vehicle could accelerate
or brake unexpectedly. There is a risk of an
accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If
you do not know the stored speed, store the
desired speed again.
X
Briefly pull the cruise control lever towards
you ?.
X
Remove your foot from the accelerator
pedal.
The first time Active Distance Assist
DISTRONIC is activated, it stores the current
speed or regulates the speed of the vehicle
to the previously stored speed.
Pulling away and driving
X
If you want to pull away with Active Dis-
tance Assist DISTRONIC: remove your foot
from the brake pedal.
X
Briefly pull the cruise control lever towards
you ?.
or
X
If Active Distance Assist DISTRONIC is acti-
vated: accelerate briefly.
Your vehicle pulls away and adapts its speed
to that of the vehicle in front. If no vehicle is
detected in front, your vehicle accelerates
to the set speed.
The vehicle can also pull away when it is facing
an unidentified obstacle or is driving on a dif-
ferent line from another vehicle. The vehicle
then brakes automatically. Be ready to brake
at all times.
If there is no vehicle in front, Active Distance
Assist DISTRONIC operates in the same way
as cruise control.
If Active Distance Assist DISTRONIC detects a
slower-moving vehicle in front, it brakes your
vehicle. In this way, the distance you have
selected is maintained.
If Active Distance Assist DISTRONIC detects a
faster-moving vehicle in front, it increases the
driving speed. However, the vehicle is only
accelerated up to the speed you have stored.
Selecting the drive program
Active Distance Assist DISTRONIC supports a
sporty driving style when you have selected
the S or S+ drive program (Y page 124).
Acceleration behind the vehicle in front or to
the set speed is then noticeably more
dynamic. If you have selected the C or E driv-
ing program, the vehicle accelerates more
gently. In city traffic and stop-start traffic,
drive program C is recommended.
Changing lanes
If you want to change to the overtaking lane
on multi-lane roads, Active Distance Assist
DISTRONIC supports you if:
R
you are driving faster than 45 mph
(70 km/h)
R
Active Distance Assist DISTRONIC is main-
taining the distance to a vehicle in front
R
you switch on the appropriate turn signal
R
Active Distance Assist DISTRONIC does not
currently detect a danger of collision
If these conditions are fulfilled, your vehicle is
accelerated. Acceleration will be interrupted if
changing lanes takes too long or if the dis-
tance between your vehicle and the vehicle in
front becomes too small.
i
When you change lanes, Active Distance
Assist DISTRONIC monitors the left lane on
left-hand-drive vehicles or the right lane on
right-hand-drive vehicles.
Stopping
G
WARNING
If you leave the driver's seat when the vehi-
cle is only being braked by Active Distance
Assist DISTRONIC, it could roll away:
R
if there is a malfunction in the system or
in the voltage supply
R
if Active Distance Assist DISTRONIC is
deactivated using the cruise control lever,
for example by a vehicle occupant or from
outside the vehicle
R
if the electrical system in the engine com-
partment, the battery or the fuses are
tampered with
Driving systems
147
Driving and parking
Z
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