#
To deactivate cruise control: press rocker
switch 1 down.
%
If you brake, deactivate ESP
®
or if ESP
®
intervenes, cruise control is deactivated.
Active Distance Assist DISTRONIC
Function of Active Distance Assist
DISTRONIC
Active Distance Assist DISTRONIC maintains the
set speed on free-flowing roads. If vehicles in
front are detected, the set distance is main‐
tained, if necessary, until the vehicle comes to a
halt. The vehicle accelerates or brakes depend‐
ing on the distance to the vehicle in front and
the set speed. The speed (in the range between
15 mph (20 km/h) and 120 mph (200 km/h))
and the distance to the vehicle in front are set
and saved on the steering wheel.
Other features of Active Distance Assist
DISTRONIC:
R
Adjusts the driving style depending on the
selected drive program (fuel efficient, com‐
fortable or dynamic) (/ page 141)
R
Initiates acceleration to the stored speed if
the turn signal indicator is switched on to
change to the overtaking lane.
Active Distance Assist DISTRONIC is only an aid.
The driver is responsible for keeping a safe dis‐
tance to the vehicle in front, for vehicle speed
and for braking in good time.
System limits
The system may be impaired or may not function
in the following situations:
R
In snow, rain, fog, heavy spray, if there is
glare, in direct sunlight or in greatly varying
ambient light.
R
If there is swirling dust, e.g. when driving off-
road or on sandy surfaces.
R
The windshield in the area of the camera is
dirty, fogged up, damaged or covered.
R
If the radar sensors are dirty or covered.
R
In parking garages or on roads with steep
uphill or downhill gradients.
R
If there are narrow vehicles in front, such as
bicycles or motorcycles.
In addition, on slippery roads, braking or accel‐
erating can cause one or several wheels to lose
traction and the vehicle could then skid.
Do not use Active Distance Assist DISTRONIC in
these situations.
&
WARNING Risk of accident from acceler‐
ation or braking by Active Distance
Assist DISTRONIC
Active Distance Assist DISTRONIC may accel‐
erate or brake in the following cases, for
example:
R
If the vehicle pulls away using Active Dis‐
tance Assist DISTRONIC.
R
If the stored speed is called up and is
considerably faster or slower than the
currently driven speed.
R
If Active Distance Assist DISTRONIC no
longer detects a vehicle in front or does
not react to relevant objects.
#
Always carefully observe the traffic con‐
ditions and be ready to brake at all
times.
174
Driving and parking
