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Do not use Active Distance Assist DISTRONIC:
R
In road and traffic conditions which do not
allow you to maintain a constant speed, e.g. in
heavy traffic or on winding roads
R
on slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
R
when there is poor visibility, e.g. due to fog,
heavy rain or snow
Active Distance Assist DISTRONIC may not
detect narrow vehicles driving in front, e.g.
motorcycles, or vehicles driving in a staggered
formation.
In particular, the detection of obstacles can be
impaired if:
R
There is dirt on the sensors or anything else
covering the sensors
R
There is snow or heavy rain
R
There is interference by other radar sources
R
There are strong radar reflections, for exam-
ple, in parking garages
If Active Distance Assist DISTRONIC no longer
detects a vehicle in front, Distance Pilot
DISTRONIC may unexpectedly accelerate to the
speed stored.
This speed may:
R
be too high if you are driving in a turning lane
or an exit lane
R
be so high in the right lane that you pass vehi-
cles driving on the left (in countries where
they drive on the right)
R
be so high in the left lane that you pass vehi-
cles driving on the right (right-hand drive
countries)
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:
Activates or increases speed
;
Activates or reduces speed
=
Deactivates Active Distance Assist
DISTRONIC
?
Activates at the current speed or last stored
speed
A
Sets a specified minimum distance
Activating Active Distance Assist
DISTRONIC
Activation conditions
To activate Active Distance Assist DISTRONIC,
the following conditions must be fulfilled:
R
the engine must be started. It may take up to
two minutes of driving before Active Distance
Assist DISTRONIC is ready for use.
R
the electric parking brake must be released.
R
ESP
®
must be active, but not intervening.
R
the transmission must be in position h.
R
the driver's door must be closed when you
shift from j to h or your seat belt must be
fastened.
R
the front-passenger door and rear doors must
be closed.
138
Driving systems
Driving and parking
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