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Driving and Driving Safety
Switching adaptive cruise control on
and off
Switching adaptive cruise control on
f
Press button
R
on the control stalk.
The grey status display appears on the
multi-function display.
Adaptive cruise control is ready.
Switching adaptive cruise control off
f
Press button
R
on the control stalk.
“ACC off” appears on the multi-function
display.
The desired speed that was stored is deleted.
The desired distance is set to the default value.
Operating states when adaptive cruise
control is switched on
There are three possible operating states when
adaptive cruise control is switched on.
Adaptive cruise control active
Adaptive cruise control automatically regulates
the speed and distance from the vehicle in front.
The status display
A
turns orange.
Adaptive cruise control is ready
Cruise control and distance control is inactive
after pressing the brakes or interrupting by
pressing the control stalk down (position
3
,
OFF
).
The desired speed that was stored and the
desired distance that was set are retained.
The status display
A
turns grey.
Adaptive cruise control is active again after
you release the accelerator.
For information on resuming cruise control and
distance control:
f
Please see the chapter “RESUMING CRUISE
CONTROL AND DISTANCE CONTROL –
RESUME” on page 185.
Adaptive cruise control passive
Cruise control and distance control is inactive
after pressing the accelerator.
“ACC passive” appears on the multi-function
display.
The desired speed that was stored and the
desired distance that was set are retained.
The status display
A
turns grey.
Adaptive cruise control is active again after
you release the accelerator.
Setting and changing the desired speed
Preconditions
– ACC is switched on.
– Vehicle is moving.
– No stationary objects are detected in front.
Setting the desired speed
1. Press the control stalk on the steering wheel
forward (position
1
).
The current driving speed is stored as the
desired speed, which will be maintained
automatically (within the control range from 20
to 100 mph, 30 to 210 km/h), and appears
orange in the status display
A
.
The red triangle
B
under the progress bar for
the speed control range shows the speed of
your vehicle.
2. Release the accelerator pedal.
The desired speed is maintained automatically
unless a vehicle travelling in front is detected
as driving slower than the desired speed.
Note
If your vehicle is stopped, the message
“Impossible when parked” appears on the multi-
function display when you press the control stalk
forward (position
1
).
If a stationary object was detected in front, the
message “Stationary object” appears on the
multi-function display.