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Deactivating cruise control
There are several ways to deactivate cruise con-
trol:
X
Briefly press the cruise control lever for-
wards :.
or
X
Brake.
Cruise control is automatically deactivated if:
R
you engage the electric parking brake
R
you are driving at less than 20 mph (30 km/h)
R
ESP
®
intervenes or you deactivate ESP
®
R
you activate DSR
R
you activate the Offroad Plus program (vehi-
cles with the Off-road Engineering Package)
R
you shift the transmission to position i
while driving
If cruise control is deactivated, you will hear a
warning tone. You will see the Cruise Con‐Cruise Con‐
trol Offtrol Off message in the multifunction display
for approximately five seconds.
i
When you switch off the engine, the last
speed stored is cleared.
Active Distance Assist DISTRONIC
General notes
Active Distance Assist DISTRONIC regulates the
speed and automatically helps you maintain the
distance from the vehicle detected in front.
Vehicles are detected with the aid of the radar
sensor system. Active Distance Assist
DISTRONIC brakes automatically so that the set
speed is not exceeded.
You must select a lower gear in good time on
long and steep downhill gradients, especially if
the vehicle is laden or towing a trailer. By doing
so, you will make use of the braking effect of the
engine. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly.
If Active Distance Assist DISTRONIC detects
that there is a risk of a collision with the vehicle
in front, you will be warned visually and audibly.
Active Distance Assist DISTRONIC cannot pre-
vent a collision without your intervention. An
intermittent warning tone will then sound and
the distance warning lamp will light up in the
instrument cluster. Brake immediately in order
to increase the distance to the vehicle in front or
take evasive action provided it is safe to do so.
For Active Distance Assist DISTRONIC to assist
you when driving, the radar sensor system must
be operational.
Active Distance Assist DISTRONIC operates in
the speed range between 0 mph (0 km/h) and
120 mph (200 km/h).
Do not use Active Distance Assist DISTRONIC
while driving on roads with steep gradients.
As Active Distance Assist DISTRONIC transmits
radar waves, it can resemble the radar detectors
of the responsible authorities. You can refer to
the relevant chapter in the Operator's Manual if
questions are asked about this.
i
USA only:
This device has been approved by the FCC as
a "Vehicular Radar System". The radar sensor
is intended for use in an automotive radar
system only. Removing, tampering with, or
altering the device will void any warranties,
and is not permitted by the FCC. Do not tam-
per with, alter, or use in any non-approved
way.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
i
Canada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause interference,
and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Do not tamper with, alter or use in any non-
approved way.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
Driving systems
171
Driving and parking
Z
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