
Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera :
mounted at the top of the windshield. Active
Lane Keeping Assist detects lane markings on
the road and warns you before you leave your
lane unintentionally. If you do not react to the
warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
:Active Lane Keeping Assist camera
If you select
km on the on-board computer in
the
Display Unit Speed-/Odometer func-
tion ( Y page 230), Active Lane Keeping Assist
is activated starting at a speed of 60 km/h. If
the
miles display unit is selected, the assis-
tance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys-
ics. Lane Keeping Assist cannot take into
account the road, traffic and weather condi-
tions. Lane Keeping Assist is merely an aid.
You are responsible for the distance to the
vehicle in front, for vehicle speed, for braking in good time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
R give an unnecessary warning and then
make a course-correcting brake application
to the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con- struction work
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are highly variable shade conditions
on the roadway
R no vehicle is detected in the adjacent lane
and there are broken lane markings
Warning vibration in the steering wheel
A warning may be given if a front wheel
passes over a lane marking. It will warn you by
210Driving systems
Driving and parking

gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
A lower gear and lower speed reduce the
risk of engine failure.
R When driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases dra-
matically while the air-conditioning system
is switched on, switch off the air-condition-
ing system.
Coolant heat can additionally be dissipated
by opening the windows and by setting the blower fan and the interior temperature to
maximum.
R When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of the vehicle/trailer
combination, you require additional road
space in relation to the vehicle you are
overtaking, before you can change back to
the original lane.
Decoupling a trailer
GWARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake is engaged.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound- ing of the overrun brake.
X Make sure that the automatic transmission
is set to position P.
X Apply the vehicle's parking brake. X
Close all doors and the tailgate.
X Apply the trailer's parking brake.
X Remove the trailer cable and decouple the
trailer.
Permissible trailer loads and drawbar
loads
Weight specifications
The gross trailer weight is calculated by add-
ing the weight of the trailer to the weight of
the load and equipment on the trailer.
You will find installing dimensions and loads
under "Technical data" ( Y page 381).
Loading a trailer
R
When loading the trailer, make sure that
neither the permissible gross weight of the
trailer nor the gross vehicle weight is
exceeded. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
You can find the maximum permissible val-
ues on the type plates of your vehicle and
the trailer. When calculating how much
weight the vehicle and trailer may carry,
pay attention to the respective lowest val-
ues.
R The trailer drawbar load on the ball coupling
must be added to the rear axle load to avoid exceeding the permissible gross axle
weight. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
iMercedes-Benz recommends a trailer
load where the trailer drawbar noseweight
accounts for 8% to 15% of the trailer's per-
missible gross weight.
216Towing a trailer
Driving and parking

Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul- tifunction display ( Y page 222).
Changes in the outside temperature are dis-
played after a short delay.
Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated ( Y page 175):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated ( Y page 176):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
The segments between the speed of the
vehicle in front and the stored speed light
up.
Operating the on-board computer
Overview
:Multifunction display
;Switches on the Voice Control System
(see the separate operating instructions)
=Right control panel
?Left control panel
ABack button
X To activate the on-board computer: turn
the SmartKey to position 1 in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel.
Displays and operation221
On-board computer and displays
Z

"From start" trip computer, the values in
the ECO display are also reset.
Navigation system menu
Displaying navigation instructions
In the Navi menu, the multifunction display
shows navigation instructions. You can find
further information in the separate operating
instructions.
X Switch on the audio system with Becker ®
MAP PILOT or COMAND (see the separate
operating instructions).
X Press the = or ; button on the steer-
ing wheel to select the
Navi menu.
Route guidance not active
:Direction of travel
;Current road
Route guidance active
No change of direction announced
:Distance to the destination
;Distance to the next change of direction
=Current road
?"Follow the road's course" symbol Change of direction announced without a
lane recommendation
:Road into which the change of direction
leads
;Distance to change of direction and visual
distance display
=Change-of-direction symbol
When a change of direction is announced, you
will see symbol = for the change of direction
and distance graphic ;. The distance indi-
cator shortens towards the top of the display
as you approach the point of the announced
change of direction.
Change of direction announced with a
lane recommendation
:Road into which the change of direction
leads
;Distance to change of direction and visual
distance display
=Lanes not recommended
?Recommended lane and new lane during a
change of direction
AChange-of-direction symbol
On multilane roads, lane recommendations
can be displayed for the next change of direc- tion if the digital map supports this data. Dur-
ing the change of direction, new lanes may be added.
Lane not recommended =: you will not be
able to complete the next change of direction
if you stay in this lane.
Menus and submenus225
On-board computer and displays
Z

Recommended lane and new lane during a
change of direction ?: in this lane you will be
able to complete the next two changes of
direction without changing lane.
Recommended lane A: in this lane you will
only be able to complete the next change of
direction without changing lane.
Other status indicators of the naviga-
tion system
The navigation system displays additional
information and the vehicle status.
Possible displays:
R
New Route... or Calculating Route
A new route is calculated.
R
Off Map or Off Mapped Road
The vehicle position is outside of the range of the digital map (off-map position).
R
No Route
No route could be calculated to the selec-
ted destination.
R O :
You have reached the destination or an
intermediate destination.
Audio menu
Selecting a radio station
:Frequency range
;Station frequency with memory position
iStation ; is displayed with the station
frequency or station name. The memory
position is only displayed along with sta-
tion ; if this has been stored. X
Switch on the audio system or COMAND
and select Radio (see the separate operat-
ing instructions).
X Press the = or ; button on the steer-
ing wheel to select the
Audio menu.
X To select a stored station: briefly press
the 9 or : button.
X To select a station from the station list:
press and briefly hold the 9 or :
button.
If no station list is received: X To select a station using the station
search: press and briefly hold the 9
or : button.
iSwitching frequency range and storing
stations (see the separate operating
instructions).
iSIRIUS XM satellite radio functions like a
normal radio.
You can find further information on operat-
ing the satellite radio in the separate oper- ating instructions.
Operating an audio player or audio
media
Example: CD/DVD changer display :
Current title
Audio data from various audio devices or
media can be played, depending on the equip- ment installed in the vehicle.
X Switch on the audio system or COMAND
and select the audio device or medium (see
the separate operating instructions).
X Press the = or ; button on the steer-
ing wheel to select the
Audio menu.
226Menus and submenus
On-board computer and displays

XTo select the next/previous track:
briefly press the 9 or : button.
X To select a track from the track list
(rapid scrolling): press and hold the 9
or : button until desired track has been
reached.
If you press and hold 9 or : , the rapid
scrolling speed is increased. Not all audio
drives or data carriers support this function.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and name of the track.
Video DVD operation
Example: CD/DVD changer display :
Current scene
Only on vehicles with COMAND can you oper-
ate DVD videos using the
Audio menu.
X Switch on COMAND and select video DVD
(see the separate operating instructions).
X Press the = or ; button on the steer-
ing wheel to select the
Audio menu.
X To select the next/previous scene:
briefly press the 9 or : button.
X To select a scene from the scene list
(rapid scrolling): press and hold the 9
or : button until desired scene has
been reached.
Telephone menu
Introduction
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
When telephoning, you must observe the
legal requirements for the country in which
you are currently driving.
X Switch on the mobile phone (see the sep-
arate manufacturer's operating instruc-
tions).
X Switch on the audio system or COMAND
(see the separate operating instructions).
X Establish a Bluetooth ®
connection to the
audio system or COMAND (see the sepa-
rate operating instructions).
X Press the = or ; button on the steer-
ing wheel to select the
Tel menu.
You will see one of the following display mes-
sages in the multifunction display: R
Phone READY or the name of the network
provider: the mobile phone has found a
network and is ready to receive.
R
Phone No Service: there is no network
available or the mobile phone is searching
for a network.
Accepting a call
If someone calls you when you are in the Tel
menu, a display message appears in the mul- tifunction display, for example:
Example: incoming call
X Press the 6 button on the steering
wheel to accept an incoming call.
Menus and submenus227
On-board computer and displays
Z

Useful information
iThis Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops ( Y page 27).
Loading guidelines
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
GWARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
The gross vehicle weight (GVW) is the vehicle
weight including fuel, vehicle tool kit, spare
wheel, installed accessories, vehicle occu-
pants and luggage/cargo.
The gross load limit and the gross vehicle
weight rating (GVWR) for your vehicle must
never be exceeded. The gross load limit and
the GVWR are specified on the vehicle iden-
tification plate on the B-pillar of the driver's
door ( Y page 343).
The load must also be distributed so that the
weight on each axle never exceeds the gross axle weight rating (GAWR) for the front and
rear axles. The specifications for GVWR and
GAWR are on the vehicle identification plate
on the B-pillar of the driver's door
( Y page 343).
Further information can be found in the
"Loading the vehicle" section ( Y page 343).
The handling characteristics of a laden vehi-
cle are dependent on the distribution of the
load within the vehicle. For this reason, you
should observe the following notes when
transporting a load:
R The cargo compartment is the preferred
place to carry objects.
R Position heavy loads as far forwards as pos-
sible and as low down in the cargo com-
partment as possible.
R The load must not protrude above the
upper edge of the seat backrests.
R Always place the load against the rear or
front seat backrests. Make sure that the
seat backrests are securely locked into
place.
R Always place the load behind unoccupied
seats if possible.
R Use the cargo tie-down rings and the parcel
nets to transport loads and luggage.
R Use cargo tie-down rings and fastening
materials appropriate for the weight and
size of the load.
274Loading guidelines
Stowage and features

XPress Roadside Assistance button :.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in Roadside Assistance
button : flashes while the call is active.
The multifunction display shows the
ConZ
necting Call message. The audio output
is muted.
If a connection can be made, the
Call ConZ
nected message appears in the multifunction
display.
If a mobile phone network and GPS reception are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center, for example:
R current location of the vehicle
R vehicle identification number
iThe audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu
by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
A voice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
From the remote malfunction diagnosis, the
Mercedes-Benz Customer Assistance Center
can ascertain the nature of the problem
( Y page 293).
The Mercedes-Benz Customer Assistance
Center either sends a qualified Mercedes-
Benz technician or makes arrangements for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center.
You may be charged for services such as
repair work and/or towing.
Further details are available in your mbrace
manual.
iThe system has not been able to initiate a
Roadside Assistance call, if:
R the indicator lamp for Roadside Assis-
tance call button : is flashing continu-
ously.
R no voice connection to the Mercedes-
Benz Customer Assistance Center was
established.
This can occur if the relevant mobile phone network is not available, for example.
The
Call Failed message appears in the
multifunction display.
X To end a call: press the ~ button on the
multifunction steering wheel.
or
X Press the corresponding button for ending
a phone call on the audio system or on
COMAND.
MB Info call button
XPress MB Info call button :.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in MB Info call button :
flashes while the connection is being made.
The multifunction display shows the
ConZ
necting Call message. The audio system
is muted.
If a connection can be made, the
Call ConZ
nected message appears in the multifunction
display.
290Features
Stowage and features