Driver assistance systems
braking will have priority over intervention by
the speed contr
ol or adaptive cruise control.
●
Always be ready to use the brakes!
●
Observe country-specific provisions gov-
erning obligatory minimum distances be-
tween vehicles.
Note
●
The pr
ogrammed s
peed is erased once the
ignition or the ACC are switched off.
●
When the traction control system (ASR) is
deactivated during acceleration or else the
ESC is activated in Sport* Mode
(››› page 120), the ACC switches off automati-
cally.
●
In vehicles with the Start-Stop system, the
engine switches off automatically during the
ACC stopping phase and restarts automatical-
ly to begin driving.
Function for preventing overtaking in
an in
s
ide l
ane
Fig. 199 On the instrument panel display:
A
C
C
active, vehicle detected in an outer lane.
The adaptive cruise control (ACC) has a func-
tion th
at
help
s avoid overtaking while driving
in inside lanes at certain speeds.
If another vehicle is detected travelling at a
slower speed in an outer lane, it is displayed
on the multifunction display ››› Fig. 199.
To avoid overtaking while driving in an inside
lane the system will gently brake, and in ac-
cordance with the speed will prevent the car
from overtaking. The driver can override this
function at any time by pressing the accelera-
tor pedal. At low speeds the function is inac-
tive, for greater comfort in a traffic jam or in
city traffic.
Deactivating the Adaptive Cruise Con-
trol ACC temporarily in certain situa-
tions
In the following situations the Adaptive
Cruise C
ontrol (ACC) should be deactivated
due to the system's limitations ›››
:
●
When changing lanes, on tight bends and
round
abouts, in acceleration and decelera-
tion lanes on motorways or in sections with
road works to prevent involuntary accelera-
tion to reach the programmed speed.
●
When going through a tunnel, as operation
coul
d be affected.
●
On roads with several lanes, when other ve-
hicles are driving more slowly in the overtak-
ing lane. In this case, slower vehicles will be
overtaken on the right.
●
In case of heavy rain, snow or spray, as the
vehicle in front might not be detected proper-
ly or, in certain circumstances, might not be
detected at all.
WARNING
If the ACC does not switch off in the situa-
tions de
scribed, serious accidents and inju-
ries may occur.
●
Always switch off the ACC in critical situa-
tions.
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