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Driver assistance systems
ACC detects it and adapts the speed au-
t omatically, maint
aining a distance set by
the driver.
Does my vehicle have ACC?
Your vehicle has ACC if it has a configuration
menu in the infotainment system ››› page 90
and if it has the ACC function buttons on the
multifunction steering wheel ››› Fig. 185
.
Speed range
ACC regulates speeds between 30 km/h (20
mph) and 210 km/h (130 mph). 1)
If the vehicle is fitted with an automatic gear-
box, the ACC can bring the vehicle to a
standstill if a vehicle in front of it stops.
If your vehicle is fitted with a manual gearbox,
you must pay attention to speed and gear
changes. The ACC is deactivated if the
speed is too low (less than 30 km/h) of the
engine RPM is too low or high.
Driver intervention prompt ACC is subject to certain limitations in-
herent to the system. This means that
the driver will have to control the speed
and distance from other vehicles in cer-
tain situations. In this case, the instru-
ment cluster display will tell you t
o in-
tervene by applying the brake, and an
audio warning will be played.
Radar sensors
The ACC uses the front radar technology.
Read its maintenance instructions and infor-
mation about its limitations ››› page 243
. WARNING
The ACC’s technology cannot overcome
the syst em's inher
ent limitations or change
the laws of physics. If used negligently or
involuntarily, it may cause serious acci-
dents and injuries. The system is not a re-
placement for driver awareness.
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Driving
ACC operation Fig. 185
On the multifunction steering wheel:
butt ons t
o operate the ACC Connecting
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Driver assistance systems
accelerator pedal. ACC regulation is suspen-
ded until you r el
ease the accelerator pedal
››› .
Set the def ault dist
ance setting
In the Infotainment system, you can pre-se-
lect the distance level when connecting the
ACC from:
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Driving
Avoid undertaking on the right 1)
If a v ehicl
e is detected in the left lane that is
travelling at a speed slower than that set by
the driver, it will brake the vehicle within the
comfort limits of the system to avoid passing
it on the right ››› Fig. 187
.
You can cancel this regulation by changing
the set speed or by pressing the accelerator
pedal.
The function works at speeds over 80 km/h
(50 mph). It may not be available in certain
countries.
Overtaking
When the turn signal is switched on for over-
taking, the ACC reduces the distance from
the vehicle in front to help with the overtaking
manoeuvre. The set cruising speed will not be
exceeded.
The function works at speeds over 80 km/h
(50 mph). It may not be available in certain
countries.
Stop&Go function
Valid for: vehicles with an automatic gearbox
The ACC can bring the vehicle to a standstill
(0 km/h) if the vehicle in front stops. The ACC remains active and the message
A C C r e a d y t o s t a r t is displayed on the in-
strument clust
er for a few seconds. You can
extend or reactivate this warning by pressing
the button or, depending on your vehicle’s equipment, by grabbing the steering wheel.
During this time, the vehicle will move off
again if the vehicle in front moves forwards.
To move off when the message A C C r e a d y
t o s t a r t is not longer displayed, once the
vehicle in front has moved off:
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