Deactivating Active Brake Assist
%
It is recommended that Active Brake Assist is
always left activated.
#
Select
Off
.
The distance warning function and autono‐
mous braking function are deactivated.
%
When Active Brake Assist is deactivated, the
æ
symbol appears in the status area of
the multifunction display.
Function of Adaptive Brake Lights
Adaptive Brake Lights warn following traffic in an
emergency braking situation with the following
signals:
R
flashing the brake lamps
R
activating the hazard warning lights
If the vehicle is braked sharply from speeds
above 50 km/h, the brake lamps flash rapidly.
This provides traffic travelling behind you with an
even more noticeable warning.
If the vehicle is travelling at speeds of more than
70 km/h at the beginning of the brake applica‐
tion, the hazard warning lights switch on once the
vehicle is stationary. When you pull away again,
the hazard warning lights will switch off automati‐
cally at approximately 10 km/h. You can also
switch off the hazard warning lights using the
hazard warning button.
Cruise control and limiter
Function of cruise control
Cruise control accelerates and brakes the vehicle
automatically in order to maintain a previously
stored speed.
If you accelerate to overtake, for example, the
stored speed is not deleted. If you remove your
foot from the accelerator pedal after overtaking,
cruise control will resume speed regulation back
to the stored speed.
Cruise control is operated using the correspond‐
ing steering wheel buttons. You can store any
road speed above 20 km/h.
If you fail to adapt your driving style, cruise con‐
trol can neither reduce the risk of an accident nor
override the laws of physics. It cannot take into
account road, weather or traffic conditions.
Cruise control is only an aid. You are responsible
for the distance to the vehicle in front, for vehicle
speed, braking in good time and for staying in
your lane.
Displays in the multifunction display
The status of cruise control and the stored speed
are shown in the multifunction display.
Display in the instrument display (colour display)
1
Cruise control is selected
2
Set speed grey: speed is stored, cruise con‐
trol is deactivated
3
Set speed green: speed is stored, cruise con‐
trol is activated
System limitations
Cruise control may be unable to maintain the
stored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
On long and steep downhill gradients, you should
change down to a lower gear in good time. Take
particular note of this when driving a laden vehi‐
cle. By doing so, you will make use of the
engine's braking effect. This relieves the load on
the brake system and prevents the brakes from
overheating and wearing too quickly.
Do not use cruise control in the following situa‐
tions:
R
In traffic situations where frequent speed
changes are required, e.g. in heavy traffic or
on winding roads.
R
On slippery roads. Accelerating can cause the
drive wheels to lose traction and the vehicle
could then skid.
R
If you are driving when visibility is poor.
Function of the limiter
Vehicle with a permissible gross mass of up
to 3.5 t: the limiter limits the vehicle's speed. To
reduce the speed swiftly to the set speed, the
limiter applies the brakes automatically.
Vehicle with a permissible gross mass of
over 3.5 t: the limiter limits the vehicle's speed.
Driving and parking 157
