
DISTRONIC PLUS with Steering Assist
and Stop&Go Pilot General notes
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot aids you in keeping the vehicle in
the centre of the driving lane by means of mod-
erate steering interventions in a speed range
from 0 - 200 km/h.
It monitors the area in front of your vehicle by
means of multifunction camera :, at the top of
the windscreen.
In a speed range from 0 - 60 km/h, Stop&Go
Pilot focuses on the vehicle in front, taking into
account lane markings, e.g. when following vehi- cles in a traffic jam.
At speeds of more than 60 km/h, Steering
Assist focuses on detected lane markings (left
and right), only focusing on the vehicle in front if
detected lane markings are not present.
If these conditions are not present, Steering
Assist and Stop&Go Pilot cannot provide assis-
tance.
DISTRONIC PLUS must be active in order for the
function to be available.
Important safety notesIf you fail to adapt your driving style, DISTRONIC
PLUS with Steering Assist and Stop&Go Pilot
can neither reduce the risk of an accident nor
override the laws of physics. It cannot take into account road, weather or traffic conditions.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot is only an aid. You are responsible
for the distance to the vehicle in front, for vehi-
cle speed, for braking in good time and for stay- ing in lane.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot does not detect road and traffic
conditions and does not detect all road users. If
you are following a vehicle which is driving towards the edge of the carriageway, your vehi-
cle could come into contact with the kerb or
other road boundaries. Be particularly aware of
other road users, e.g. cyclists, that are directly
next to your vehicle.
Obstacles such as traffic pylons on the lane or
projecting out into the lane are not detected.
An inappropriate steering intervention, e.g. after intentionally driving over a lane marking, can be
corrected at any time if you steer slightly in the
opposite direction.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot cannot continuously keep your
vehicle in lane. In some cases, the steering
intervention is not sufficient to bring the vehicle back to the lane. In such cases, you must steer the vehicle yourself to ensure that it does not
leave the lane.
The support offered by the system may be
impaired if:
R there is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
R the windscreen is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R no, or several, unclear lane markings are pres-
ent for one lane, e.g. in a construction area
R the lane markings are worn away, dark or cov-
ered 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 detec-
ted
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 road
The system is switched to passive and no longer assists you by performing steering interventions
if:
R you actively change lanes
R you switch on the turn signal
R you take your hands off the steering wheel or
do not steer for a prolonged period of time
i After you have finished changing lanes,
Steering Assist and Stop&Go Pilot are auto-
matically active again. Driving syste
ms
169Driving an d parking Z

The
Park Assist active Accelerate
Park Assist active Accelerate
and brake Observe surroundings
and brake Observe surroundings mes-
sage appears in the multifunction display.
i You will achieve the best results by waiting
for the steering procedure to complete before
pulling away.
X Drive forwards and be ready to brake at all
times.
Vehicles with automatic transmission:
Active Parking Assist brakes the vehicle to a
standstill.
X Vehicles with manual transmission: stop,
at the latest when PARKTRONIC sounds the
continuous warning tone.
Vehicles with manual transmission: the
Park Assist active Engage reverse
Park Assist active Engage reverse
gear Observe surroundings gear Observe surroundings message
appears in the multifunction display.
Vehicles with automatic transmission: the
Park Assist active Select R Observe Park Assist active Select R Observe
surroundings surroundings message appears in the multi-
function display.
Additional transmission shifts may be neces-
sary.
As soon as the parking procedure is complete,
the Park Assist switched off Park Assist switched off message
appears in the multifunction display and you will hear a tone. The vehicle is now parked. The
vehicle is kept stationary without the driver hav- ing to depress the brake pedal. The braking
effect is cancelled when you depress the accel-
erator pedal.
Active Parking Assist no longer supports you
with steering interventions and brake applica-
tions. When Active Parking Assist is finished,
you must steer and brake again yourself.
PARKTRONIC is still available.
X Manoeuvre if necessary.
X Always observe the warning messages dis-
played by PARKTRONIC (Y page 174).
Parking tips:
R The way your vehicle is positioned in the park-
ing space after parking is dependent on vari-
ous factors. These include the position and
shape of the vehicles parked in front and
behind it and the conditions of the location. It
may be the case that Active Parking Assist
guides you too far into a parking space, or not far enough into it. In some cases, it may also
lead you across or onto the kerb. If necessary, you should cancel the parking procedure with
Active Parking Assist.
R You can also preselect transmission position
D. The vehicle redirects and does not drive as
far into the parking space. Should a gear be
changed too early, the parking procedure will be cancelled. A sensible parking position can
no longer be achieved from this position.
Exiting a parking space In order that Active Parking Assist can support
you when exiting the parking space:
R the border of the parking space must be high
enough at the front and the rear. A kerb stoneis too small, for example.
R the border of the parking space must not be
too wide, as the position of the vehicle must
not exceed an angle of 45° to the starting
position as it is manoeuvred into the parking
space.
R a manoeuvring distance of at least 1.0 mmust
be available.
i Vehicles with automatic transmission:
If PARKTRONIC detects obstacles, Active
Parking Assist brakes automatically whilst the vehicle exits the parking space. You are
responsible for braking in good time.
Active Parking Assist can only assist you with
exiting a parking space if you have parked the
vehicle parallel to the direction of travel using
Active Parking Assist.
X Start the engine.
X Release the parking brake.
X Switch on the turn signal in the direction you
are pulling away.
X Vehicles with manual transmission:
engage first or reverse gear.
Vehicles with automatic transmission:
shift the transmission to position
Dor R.
The Start Park Assist? Yes: OK No:
Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.
X To cancel the procedure: press the%
button on the multifunction steering wheel or
pull away.
or Driving systems
179Driving and parking Z

R
Top view and image from the reversing cam-
era (130° viewing angle)
R Top view and image from the front camera
(130° viewing angle without displaying the
maximum steering wheel angle)
R Top view and enlarged rear view
R Top view and enlarged front view
R Top view and trailer view (vehicles with trailer
tow hitch)
R Top view and images from the rear-facing side
cameras (rear wheel view)
R Top view and images from the forward-facing
side cameras (front wheel view)
When the function is active and you shift the
transmission from Dor Rto N, the dynamic
guide lines are hidden.
When you change between transmission posi-
tions Dand R, you see the previously selected
front or rear view.
Distances measured by PARKTRONIC will also
be optically displayed:
R as red or yellow brackets around the vehicle
symbol in top view in split-screen mode or
R at the bottom right as red or yellow brackets
around the vehicle symbol in full-screen mode
The line thickness and colour of the brackets
show how far the vehicle is from an object.
R yellow brackets with thin lines: PARKTRONIC
is active
R yellow brackets with normal lines: an object is
present in close range of the vehicle
R red line: an object is present in the immediate
close range of the vehicle
Important safety notes The 360° camera is only an aid and may show a
distorted view of obstacles, show them incor-
rectly or not at all. The 360° camera is not a
substitute for attentive driving.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that there are no persons, animals or objects in range
while manoeuvring and parking.
You are always responsible for safety, and must
always pay attention to your surroundings when parking and manoeuvring. This applies to the
areas behind, in front of and beside the vehicle.
You could otherwise endanger yourself and oth- ers. The 360° camera will not function or will func-
tion only in a limited manner:
R if the doors are open
R if the exterior mirrors are folded in
R if the boot lid is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the cameras are exposed to very bright light
R if the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in win-
ter
R if the camera lenses are dirty or covered
R if the vehicle components in which the cam-
eras are fitted are damaged. In this event,
have the camera position and setting checked at a qualified specialist workshop.
Do not use the 360° camera under such cir-
cumstances. You could otherwise injure others
or damage objects when parking the vehicle.
Guide lines are always shown at road level. In
trailer mode, the guide lines are shown at the
level of the trailer coupling.
The field of vision and other functions of the
camera system may be restricted due to addi-
tional accessories on the rear of the vehicle (e.g.
licence plate holder, bicycle rack).
On vehicles with height-adjustable suspension,
due to the technical conditions, leaving the
standard height can result in:
R inaccuracies in the guide lines
R inaccuracies in the display of generated
images (top view)
Activation conditions The 360° camera image can be displayed if:
R your vehicle is equipped with a 360° camera
R the key is in position 2in the ignition lock
R the multimedia system is switched on
R the 360° camera
360° camera function is switched on
Activating the 360° camera X
Press the Øbutton in the centre console
for longer than two seconds.
The following appears depending on whether
transmission position Dor Ris selected: 186
Driving systemsDriving and parking

The evaluation of your attention level is deleted
and restarted when continuing the journey, if:
R you switch off the engine
R you take off your seat belt and open the driv-
er's door, e.g. for a change of drivers or to
take a break
Displaying the attention level You can have current status information dis-
played in the assistance menu (Y
page 213) of
the on-board computer.
X Select the assistance graphics display for
ATTENTION ASSIST using the on-board com-
puter (Y page 213).
The following information is displayed:
R the length of the journey since the last break
R the attention level determined by ATTENTION
ASSIST, displayed in a bar display in five levels from high to low
R if ATTENTION ASSIST is unable to calculate
the attention level and cannot output a warn-
ing, the System suspended
System suspended message
appears. The bar display then changes the
display, e.g. if you are driving at a speed below
60 km/h or above 200 km/h.
Activating ATTENTION ASSIST X
Activate ATTENTION ASSIST using the on-
board computer (Y page 215).
The system determines the attention level of
the driver depending on the setting selected:
Standard selected: the sensitivity with which
the system determines the attention level is set
to normal.
Sensitive selected: the sensitivity is set higher.
The attention level detected by ATTENTION
ASSIST is adapted accordingly and the driver is
warned earlier.
When ATTENTION ASSIST is deactivated, the
À symbol and OFF appear in the multifunc-
tion display in the assistance graphics display
when the engine is running. When ATTENTION ASSIST has been deactivated,
it is automatically reactivated after the engine
has been switched off. The sensitivity selected
corresponds to the last selection activated
(standard/sensitive).
Warning in the multifunction display If fatigue or increasing lapses in concentration
are detected, a warning appears in the multi-
function display:
Attention AttentionAssist:
Assist:Take
Takea
a
break!
break!
In addition to the message shown in the multi-
function display, you will then hear a warning
tone.
X If necessary, take a break.
X Confirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest. If you do not take a break, you will be warned again after
15 minutes at the earliest. This will only happen
if ATTENTION ASSIST still detects typical indi-
cators of fatigue or increasing lapses in concen- tration.
Vehicles with COMAND Online: if a warning is
output in the multifunction display, a service
station search is performed in the multimedia
system. You can select a service station and
navigation to this service station will then begin. This function can be activated and deactivated
in the multimedia system. Traffic Sign Assist
General notes Traffic Sign Assist displays the maximum speed
permitted and overtaking restrictions to the
driver in the instrument cluster. Driving onto a 190
Driving systemsDriving and parking

Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area in
front of your vehicle by means of multifunction
camera :at the top of the windscreen. Various
different areas to the front, rear and side of your vehicle are also monitored with the aid of the
radar sensor system. Active Lane Keeping
Assist detects lane markings on the road and
can warn you before you leave your lane unin-
tentionally. If you do not react to the warning, a
lane-correcting application of the brakes can
bring the vehicle back into the original lane.
This function is available in a speed range
between 60 km/h and 200 km/h.
For Active Lane Keeping Assist to assist you
when driving, the radar sensor system must be
operational.
Important safety notes If you fail to adapt your driving style, Active Lane Keeping Assist can neither reduce the risk of an
accident nor override the laws of physics. Active Lane Keeping Assist cannot take account of
road and weather conditions. It may not detect
traffic situations. Active Lane Keeping Assist is
only an aid. You are responsible for the distanceto the vehicle in front, for vehicle speed, for
braking in good time and for staying in lane.
Active Lane Keeping Assist cannot continuously
keep your vehicle in its lane. G
WARNING
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 neither give a warning nor 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 function if:
R there is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,fog or spray
R there is glare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
R the windscreen is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R the radar sensors in the front or rear bumpers
or the radiator trim are dirty, e.g. obscured by snow
R no or several, unclear lane markings are pres-
ent for one lane, e.g. in a construction area
R the lane markings are worn away, dark or cov-
ered 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 detec-
ted
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 road
If no vehicle is detected in the adjacent lane and broken lane markings are detected, no lane-cor-
recting brake application is made.
Warning vibration through the steering
wheel A warning may be given if a front wheel passes
over a lane marking. It will warn you by means of intermittent vibration in the steering wheel for
up to 1.5 seconds. Driving systems
199Driving and parking Z

i
If you reset the values in the "ECO display",
the values in the "From start" trip computer
are also reset. If you reset the values in the
"From start" trip computer, the values in the
"ECO display" are also reset. Navigation menu
Displaying navigation instructions In the
Navi Navimenu, the multifunction display
shows navigation instructions.
Observe the additional information on naviga-
tion in the separate operating instructions for
the multimedia system.
X Switch on the multimedia system (see the
separate operating instructions).
X Press the =or; button on the steering
wheel to select the Navi
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
? Symbol indicating "follow the road's course" Change of direction announced without a
lane recommendation :
Road to 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 change-of-direction symbol =and dis-
tance graphic ;. This 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 to 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
A Change-of-direction symbol
On multilane roads, new lane recommendations
can be displayed for the next change of direction
if the digital map supports this data. During 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.
Recommended lane and new lane during a
change of direction ?: in this lane you will be
able to complete the next two changes of direc- tion without changing lane. 210
Menus and submenusOn-board computer and displays

be adjusted with the
Brightness Display/
Brightness Display/
switches:
switches: function.
X Press the =or; button on the steering
wheel to select the Settings
Settingsmenu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Brightness Display/switches:
Brightness Display/switches: function.
The current setting appears.
X Press ato confirm.
X Press the :or9 button to adjust the
brightness to any level from Level 1
Level 1 to
Level 5
Level 5 (bright).
X Press the aor% button to save the
setting.
If the light switch is set to the Ã,Tor
L position, the brightness is dependent
upon the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of the
multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Switching the daytime driving lights
on/off
X Press the =or; button on the steering
wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Day lights
Day lights function.
If the Day Daylights
lights function has been switched
on, the cone of light and the Wsymbol in
the multifunction display are shown in
orange.
X Press the abutton to save the setting.
Further information on daytime driving lights
(Y page 106).
Switching the Intelligent Light System
on/off
X Press the =or; button on the steering
wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Lights Lights submenu.
X Press ato confirm. X
Press the :or9 button to select the
Intell. Light System Intell. Light System function.
If the Intell. Light Sys.
Intell. Light Sys. function has
been switched on, the cone of light and the
L symbol in the multifunction display are
shown in orange.
X Press the abutton to save the setting.
When you switch the Intell. Light Sys. Intell. Light Sys.
function on, you activate the following func-
tions:
R Motorway mode
R Active light function
R Cornering light function
R Extended range foglamps
If you set the dipped-beam headlamps for driv-
ing on the right/left, the multifunction display
shows the Intell. Light System: system Intell. Light System: system
inoperative Inactive for left-side
inoperative Inactive for left-side
traffic traffic orIntell.
Intell. Light
LightSystem:
System: system
system
inoperative Inactive for right-side
inoperative Inactive for right-side
traffic traffic display message instead of the
Intell.
Intell. Light
LightSystem
System function in the Lights
Lights
submenu (Y page 217). This display message
will only appear if the setting for driving on the
left/right is set opposite to your vehicle's coun-
try version.
Observe the additional information on the Intel-
ligent Light System (Y page 108).
Setting the dipped-beam headlamps for
driving on the left/right
This function is only available in vehicles with
the Intelligent Light System.
You can use this function to switch between
symmetrical and asymmetrical dipped beam
(Y page 106).
X Press the =or; button on the steering
wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Dipped beams Setting for:
Dipped beams Setting for: function.
You will see the selected setting: Right-
Right-
side traffic
side traffic orLeft-side traffic
Left-side traffic.
X Press the abutton to save the setting.
If you change the setting, conversion does not
take place until the next time the vehicle is
stationary.
If you set the dipped-beam headlamps for driv-
ing on the right/left, then motorway mode and Menus and submenus
217On-board computer and displays Z

X
Press the :or9 button to select the
Automatic door locks
Automatic door locks function.
If the Autom. locking
Autom. locking function is switched
on, the multifunction display shows the vehi-
cle's doors in orange.
X Press the abutton to save the setting.
If you activate the Auto.
Auto. door doorlocks
locks function,
the vehicle is centrally locked above a speed of around 15 km/h.
For further information on the automatic locking feature; see (Y page 82).
Activating/deactivating the acoustic
locking confirmation If you switch on the Acoustic
Acoustic Lock Lockfunction, an
acoustic signal sounds when you lock the vehi-
cle.
X Press the =or; button on the steering
wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Vehicle
Vehicle submenu.
X Press ato confirm.
X Press the :or9 button to select the
Acoustic Lock
Acoustic Lock function.
If the Acoustic Lock
Acoustic Lock function is activated,
the & symbol in the multifunction display
lights up orange.
X Press the abutton to save the setting.
Heating Auxiliary heating departure time
G
DANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac- tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from the wind. G
WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable materials such as leaves, grass or twigs may ignite if they come into contact
with:
R hot parts of the exhaust system
R the exhaust gas itself
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that:
R no flammable materials come into contact
with hot vehicle components
R the exhaust gas can escape from the
exhaust pipe unhindered
R the exhaust gas does not come into contact
with flammable materials.
! Operating the auxiliary heating/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle a maximum of two times, drive for a longer distance.
Only vehicles with auxiliary heating have this
function.
In the Heating Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calculates
the switch-on time according to the outside
temperature so that the vehicle is preheated by the departure time. When the departure time isreached, the auxiliary heating continues to heat
for a further five minutes and then switches off. The auxiliary heating adopts the THERMATIC orTHERMOTRONIC temperature setting.
You can switch off the auxiliary heating by using
the remote control or the auxiliary heating but-
ton on the centre console.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
Further information on auxiliary heating
(Y page 124). Menus and submenus
219On-board computer and displays Z