Fig. 107 Vehicle changes lane.
ACC may not react or may react with a delay
or with an unwanted response in the follow-
ing driving situations:
— Vehicles that are driving outside the sen-
sor range in close proximity to your vehi-
— Vehicles that change into your lane direct-
ly in front of your vehicle →
.
— Vehicles with bodies or attachments that
project beyond the vehicle.
Switching the ACC on and off
Please refer to at the start of the chap-
Fig. 108 Lefthand side of the multifunction
steering wheel.
Switching on
— Press the
button.
ACC is not yet performing a control interven-
tion.
Starting control
— While driving forwards, press the
but-
ton.
ACC stores the current speed and maintains
the set distance. If the current speed is out-
side the defined speed range, ACC will set the
minimum speed (when driving more slowly
than the limit) or maximum speed (when
driving faster than the limit).
In addition, the traction control system (TCS)
is activated and ESC Sport is deactivated.
One of the following indicator lamps will light
up depending on the driving situation:
ACC has taken control; no vehicle de-
tected ahead.
ACC has taken control; vehicle detec-
ted ahead.
When ACC is not active, the indicator lamps
light up grey.
Cancelling control
— Briefly press the
button or press the
brake pedal.
The indicator lamp corresponding to the driv-
ing situation lights up grey, the speed and
distance remain stored.
Control is automatically cancelled if the trac-
tion control system (TCS) is deactivated.
Resuming control
— Press the
button.
ACC adopts the last set speed and last set
distance. The instrument cluster display
shows the set speed and the indicator lamp
corresponding to the driving situation lights
up.
Switching off
— Press and hold the
button.
The set speed is deleted.
154
Driver assist systems
