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Driving with Active Distance Assist
DISTRONIC
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 cruise control lever : towards
you.
or
X
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.
i
The vehicle can also pull away when it is
facing an unidentified obstacle or is driving on
a different line from another vehicle. The vehi-
cle then brakes automatically. There is a risk
of an accident. 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 selec-
ted 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. Acceleration behind the
vehicle in front or to the set speed is then notice-
ably more dynamic. When you select the C drive
program, the vehicle accelerates more gently.
This setting is recommended in stop-and-start
traffic.
Additional information on selecting the drive
program (Y page 116).
Changing lanes
If you change to the overtaking lane, Active Dis-
tance Assist DISTRONIC helps you if:
R
you are driving at a speed greater than
45 mph (70 km/h)
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 distance
between your vehicle and the vehicle in front
becomes too small.
i
When you change lanes, Active Distance
Assist DISTRONIC monitors the left lane.
Stopping
G
WARNING
If you leave the driver's seat when the vehicle
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 tam-
pered with
R
if the battery is disconnected
R
if the vehicle is accelerated, e.g. by a vehi-
cle occupant
There is a risk of an accident.
Always deactivate Active Distance Assist
DISTRONIC and secure the vehicle against
rolling away before you leave it.
Further information about deactivating Active
Distance Assist DISTRONIC (Y page 142).
If Active Distance Assist DISTRONIC detects
that the vehicle in front is stopping, it brakes
your vehicle until it is stationary.
140
Driving systems
Driving and parking
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