Mercedes-Benz C-Sedan 2012 Owners Manual - Manual (Page 166)

You need to brake yourself to prevent a
collision. DISTRONIC PLUS brakes the vehicle
to restore the set distance from the vehicle
ahead or the set speed.
G WARNING
If you do not receive visual or acoustic
warning signals during a critical traffic
situation, DISTRONIC PLUS has either not
recognized the collision risk, has been
deactivated or is malfunctioning.
Remember, whether or not DISTRONIC PLUS
is operating, it is ultimately always the drivers
responsibility to apply the brakes in order to
control the vehicle and avoid a collision.
Cruise control lever
:
To store the current speed or a higher
speed
; To store the current speed or a lower
speed
=
To deactivate DISTRONIC PLUS
?
To store the current speed or to call up
the last stored speed
A To set the specified minimum distance
Switching on DISTRONIC PLUS, storing
the current speed and maintaining it
Important safety notes
G WARNING
The vehicle can be braked when DISTRONIC
PLUS is activated. For this reason, deactivate
DISTRONIC PLUS if the vehicle is to be set in
motion by other means (e.g. in a car wash or
by towing).
In order to activate DISTRONIC PLUS, the
following conditions must be fulfilled:
R
the engine must be started. It may take up
to two minutes after pulling away before
DISTRONIC PLUS is operational.
R the parking brake must not be applied.
R ESP ® must be activated but not
intervening.
R the transmission must be in position D.
R
the hood must be closed.
R
the driver's door must be closed when you
shift from
P to D or your seat belt must be
fastened.
R
the front-passenger door and rear doors
must be closed.
R the vehicle must not skid.
Activating while driving
When driving at speeds below 20 mph
(30 km/h), you can only activate DISTRONIC
PLUS if the vehicle in front has been detected
and is shown in the multifunction display. If
the vehicle in front is no longer detected and
shown, DISTRONIC PLUS is deactivated and
a warning tone sounds.
X Briefly pull the cruise control lever towards
you ?, or briefly press up : or down ;.
DISTRONIC PLUS is selected.
X Keep the cruise control lever pressed
up : or down ; until the desired speed
is set.
X Remove your foot from the accelerator
pedal.
Your vehicle adapts its speed to that of the
vehicle in front, but only up to the desired
stored speed.
i If you do not fully release the accelerator
pedal, the DISTRONIC PLUS Override
message is shown in the multifunction
display. The set distance to a slower-
moving vehicle in front will then not be
maintained. You will be driving at the speed
164
Driving systems
Driving and parking