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If there is no vehicle in front, DISTRONIC PLUS
operates in the same way as cruise control.
If DISTRONIC PLUS detects that the vehicle in
front has slowed down, it brakes your vehicle. In
this way, the distance you have selected is main-
tained.
If DISTRONIC PLUS 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
DISTRONIC PLUS supports a sporty driving style
when you have selected the S or S+ drive pro-
gram (
page 161). Acceleration behind the
Y
vehicle in front or to the set speed is then notice-
ably more dynamic. If you have selected the C or
E drive program, the vehicle accelerates more
gently. This setting is recommended in stop-
start traffic.
Changing lanes
If you change to the overtaking lane, DISTRONIC
PLUS supports you if:
you are driving faster than 70 km/h
R
you switch on the respective turn signal
R
DISTRONIC PLUS does not detect a danger of
R
collision
If these conditions are met, your vehicle is accel-
erated. Acceleration will be interrupted if chang-
ing lanes takes too long or if the distance
between your vehicle and the vehicle in front
becomes too small.
i
Vehicles with COMAND Online: when you
change lanes, DISTRONIC PLUS monitors the
right lane in the case of left-side traffic or the
left lane in the case of right-side traffic.
Vehicles with Audio 20: when you change
lanes, DISTRONIC PLUS monitors the left lane
on left-hand-drive vehicles or the right lane on
right-hand-drive vehicles.
Road and traffic conditions
i
The following function is only available in
vehicles with the Driving Assistance Plus
package.
The function is not operational in all coun-
tries.
DISTRONIC PLUS uses additional information
from your navigation system so that it can adapt
to certain traffic situations. This is the case if,
while following a vehicle, DISTRONIC PLUS is
active and you:
approach or drive around a roundabout
R
approach a T-junction
R
turn off at a motorway exit
R
approach a tollgate
R
Even if the vehicle in front leaves the detection
range, DISTRONIC PLUS temporarily maintains
the current driving speed and does not acceler-
ate. This is based on the current map data in the
navigation system.
Afterwards, the vehicle accelerates back to the
speed you set.
The system takes into account the fact that
overtaking on the right is not permitted on
motorways or high-speed major roads at speeds
above 80 km/h. The driving speed is adjusted to
the speed of the queue of vehicles in the adja-
cent lane to the left.
i
Prevention of overtaking on the right applies
to countries where traffic drives on the right.
In countries where traffic drives on the left,
overtaking on the left is prevented accord-
ingly.
Driving systems
187
Z
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