Mercedes-Benz C-Class Operator's Manual page 190

Driving systems
188
If you fail to adapt your driving style, DISTRONIC
PLUS can neither reduce the risk of accident nor
override the laws of physics. DISTRONIC PLUS
cannot take into account the road, traffic and
weather conditions. DISTRONIC PLUS is only an
aid. You are responsible for the distance to the
vehicle in front, for vehicle speed, for braking in
good time and for staying in your lane.
Do not use DISTRONIC PLUS:
in road and traffic conditions which do not
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allow you to maintain a constant speed e.g. in
heavy traffic or on winding roads
on slippery road surfaces. Braking or accel-
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erating could cause the drive wheels to lose
traction and the vehicle could then skid
when there is poor visibility, e.g. due to fog,
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heavy rain or snow
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front, e.g. motorcycles, or vehi-
cles driving on a different line.
In particular, the detection of obstacles can be
impaired if:
there is dirt on the sensors or anything else
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covering the sensors
there is snow or heavy rain
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there is interference by other radar sources
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there are strong radar reflections, for exam-
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ple, in parking garages
If DISTRONIC PLUS no longer detects a vehicle
in front, DISTRONIC PLUS may unexpectedly
accelerate the vehicle to the stored speed.
This speed may:
be too high if you are driving in a filter lane or
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an exit lane
be so high in the right lane that you pass vehi-
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cles driving on the left (left-hand drive coun-
tries)
be so high in the left lane that you pass vehi-
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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
: To activate or increase speed
To activate or reduce speed
;
To deactivate DISTRONIC PLUS
=
To activate at the current speed/last stored
?
speed
To set the specified minimum distance
A
Activating DISTRONIC PLUS
Activation conditions
In order to activate DISTRONIC PLUS, the fol-
lowing conditions must be fulfilled:
the engine must be started. It may take up to
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two minutes after pulling away before
DISTRONIC PLUS is operational.
the electric parking brake must be released.
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®
ESP must be active, but not intervening.
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Active Parking Assist must not be activated.
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the transmission must be in position D.
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the driver's door must be closed when you
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shift from P to D or your seat belt must be
fastened.
the front-passenger door and rear doors must
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be closed.
Switching on
Briefly pull the cruise control lever towards
X
you ?, up : or down ;.
DISTRONIC PLUS is selected.
Remove your foot from the accelerator pedal.
X
Your vehicle adapts its speed to that of the
vehicle in front, but only up to the desired
stored speed.
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If you do not fully release the accelerator
pedal, the DISTRONIC PLUS Suspended
sage appears in the multifunction display. The
set distance to a slower-moving vehicle in
mes-