multifunction display for approximately five sec-
onds.
iThe last speed stored remains stored until
you switch off the engine.
iDISTRONIC PLUS is not deactivated if you
depress the accelerator pedal.
DISTRONIC PLUS is automatically deactivated
if:
Ryou engage the electric parking brake or if the vehicle is automatically secured with the elec-
tric parking brake
RESP®intervenes or you deactivate ESP®
Rthe transmission is in the P,Ror Nposition
Ryou pull the cruise control lever towards you
in order to pull away and the front-passenger
door or one of the rear doors is open
Rthe vehicle is skidding
Ryou activate Active Parking Assist
If DISTRONIC PLUS is deactivated, you will hear a warning tone. You will see the DISTRONIC
PLUS Offmessage in the multifunction display
for approximately five seconds.
Tips for driving with DISTRONIC PLUS
General notes
Pay particular attention in the following traffic
situations:
RCornering, entering and exiting a bend: the
ability of DISTRONIC PLUS to detect vehicles
when cornering is limited. Your vehicle may
brake unexpectedly or late.
RDriving on a different line: DISTRONIC PLUS
may not detect vehicles which are not driving in the middle of their lane. The distance to the
vehicle in front will be too short.
ROther vehicles changing lane: DISTRONIC
PLUS has not detected the vehicle cutting in
yet. The distance to this vehicle will be too
short.
RNarrow vehicles: DISTRONIC PLUS does not
detect the vehicle in front on the edge of the
road because of its narrow width. The dis-
tance to the vehicle in front will be too short.
RObstacles and stationary vehicles:
DISTRONIC PLUS does not brake for obsta-
cles or stationary vehicles. If, for example, the
detected vehicle turns a corner and reveals an obstacle or stationary vehicle, DISTRONIC
PLUS will not brake for these.
RCrossing vehicles: DISTRONIC PLUS may mis-
takenly detect vehicles that are crossing your
lane. Activating DISTRONIC PLUS at traffic
lights with crossing traffic, for example, could
cause your vehicle to pull away unintention-
ally.
In such situations, brake if necessary.
DISTRONIC PLUS is then deactivated.
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 center of the driving lane by means of mod-
erate steering interventions at speeds of
0 - 125 mph (0 - 200 km/h).
It monitors the area in front of your vehicle by
means of multifunction camera :, at the top of
the windshield.
In a speed range from 0 - 37 mph (0 - 60 km/h),
Stop&Go Pilot focuses on the vehicle in front,
taking into account lane markings, e.g. when
following vehicles in a traffic jam.
At speeds of more than 37 mph (60 km/h),
Steering Assist focuses on clear lane markings
(left and right), only focusing on the vehicle in
front if clear lane markings are not present.
Steering Assist and Stop&Go Pilot do not pro-
vide any support if these conditions do not exist.
DISTRONIC PLUS must be active in order for the
function to be available.
Important safety notes
If 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
192Driving systems
Driving and parking
override the laws of physics. It cannot take
account of road, weather and 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 your lane.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot does not detect road and traffic
conditions. If you are following a vehicle which is
driving towards the edge of the road, your vehi-
cle could come into contact with the curb 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 becorrected 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 system may be impaired or may not function
if:
Rthere is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray
Rthere is glare, e.g. from oncoming traffic, the
sun or reflections (e.g. when the road surface
is wet)
Rthe windshield is dirty, fogged up, damaged or
covered, for instance by a sticker, in the vicin-
ity of the camera
Rthere are no, several or unclear lane markings
for a lane, e.g. in areas with road construction
work
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road The syst
em is switched to passive and no longer
assists you by performing steering interventions
if:
Ryou actively change lane
Ryou switch on the turn signal
Rtake your hands off the steering wheel or do
not steer for a prolonged period of time
iSteering Assist and Stop&Go Pilot are acti-
vated again automatically after a lane change
is completed.
Steering Assist and Stop&Go Pilot do not pro-
vide any support:
Ron very sharp corners
Rwhen a loss of tire pressure or a defective tire
has been detected and displayed
Pay attention also to the important safety notes for DISTRONIC PLUS (
Ypage 187).
The steering interventions are carried out with a
limited steering moment. The system requires
the driver to keep his hands on the steering
wheel and to steer himself.
If you do not steer yourself or if you take your
hands off the steering wheel for a prolonged
period of time, the system will first alert you with
a visual warning. A steering wheel symbol
appears in the multifunction display. If you have
still not started to steer and have not taken hold
of the steering wheel after five seconds at the
latest, a warning tone also sounds to remind you
to take control of the vehicle. Steering Assist
and Stop&Go Pilot are switched to passive.
DISTRONIC PLUS remains active.
Activating Steering Assist and Stop&Go
Pilot
XPress button ;.
Indicator lamp :lights up. The DTR+:
Steering Assist. Onmessage appears in
Driving systems193
Driving and parking
Z
the multifunction display. Steering Assist and
Stop&Go Pilot are activated.
Information in the multifunction display
If Steering Assist and Stop&Go Pilot are activa-
ted but is not ready for a steering intervention,
steering wheel symbol:appears in gray. If the
system provides you with support by means of
steering interventions, symbol :is shown in
green.
Deactivating Steering Assist and Stop&Go
Pilot
XPress button ;.
Indicator lamp :goes out. The DTR+:
SteeringAssist.Offmessage appears in
the multifunction display. Steering Assist and
Stop&Go Pilot are deactivated.
When DISTRONIC PLUS is deactivated or not
available, Steering Assist and Stop&Go Pilot are deactivated automatically.
HOLD function
General notes
The HOLD function can assist the driver in the
following situations:
Rwhen pulling away, especially on steep slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicle is kept stationary without the driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes
GWARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
!If DISTRONIC PLUS or the HOLD function is
activated, the vehicle brakes automatically in
certain situations.
To prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
Rwhen towing the vehicle
Rin the car wash
Deactivating the HOLD function (
Ypage 195).
Activation conditions
You can activate the HOLD function if all of the
following conditions are fulfilled:
Rthe vehicle is stationary.
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/stop
function.
Rthe driver's door is closed or your seat belt is
fastened.
Rthe electric parking brake is released.
Rthe transmission is in position D,R or N.
RDISTRONIC PLUS is deactivated.
194Driving system s
Driving an d parking
iIf you select the%symbol in the display
and confirm with the controller, the split-
screen view appears.
Exiting 360° camera display mode
The 360° camera display is stopped
Rwhen you select transmission position P, or
Rwhen you are driving at moderate speeds
The view which was active before the 360° cam- era was displayed appears in the Audio 20 or
COMAND display. You can also stop the 360°
camera display split-screen view by selecting
the % symbol in the display and then con-
firming with the COMAND controller.
ATTENTION ASSIST
General notes
ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways. It is
active in the 37 mph (60 km/h) to 125 mph
(200 km/h) range. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break.
Important safety notes
ATTENTION ASSIST is only an aid to the driver. It might not always recognize fatigue or increasing
inattentiveness in time or fail to recognize them
at all. The system is not a substitute for a well-
rested and attentive driver.
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or not
occur at all:
Rif the length of the journey is less than approx-
imately 30 minutes
Rif the road condition is poor, e.g. if the surface
is uneven or if there are potholes
Rif there is a strong side wind
Rif you have adopted a sporty driving style with high cornering speeds or high rates of accel-
eration
Rif you are predominantly driving slower than
37 mph (60 km/h) or faster than 125 mph
(200 km/h)
Rif you are driving with the active Steer Assist
of DISTRONIC PLUS
Rif the time has been set incorrectly
Rin active driving situations, such as when youchange lanes or change your speed
The ATTENTION ASSIST tiredness assessment
is deleted and restarted when continuing the
journey, if:
Ryou switch off the engine
Ryou 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 (Ypage 247) of
the on-board computer.
XSelect the Assistance display for Attention
Assist using the on-board computer
(
Ypage 246).
The following information is displayed:
Rlength of the journey since the last break.
Rthe attention level determined by ATTENTION ASSIST ( Attention Level), displayed in a
bar display in five levels from high to low.
RIf ATTENTION ASSIST is unable to calculate
the attention level and cannot issue a warn-
ing, the System Suspended
message
appears. The bar display then changes the
display, e.g. if you are driving at a speed below
37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST
XActivate ATTENTION ASSIST using the on-
board computer (Ypage 248).
The system determines the attention level of
the driver depending on the setting selected:
214Driving systems
Driving and parking
Rthere are no, several or unclear lane markings
for a lane, e.g. in areas with road construction
work
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road
Activating/deactivating Lane Keeping
Assist
XTo activate:press button ;.
Indicator lamp :lights up. The Lane Keep‐
ingAssistOnmessage appears in the mul-
tifunction display. If all conditions have been
satisfied, there may be a warning.
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
(
Ypage 246) are shown in green. Lane Keep-
ing Assist is ready for use.
XTo deactivate: press button;.
Indicator lamp :goes out. Lane Keeping
Assist is deactivated. The Lane Keeping
Assist Offmessage appears in the multi-
function display.
Selecting Standard or Adaptive setting
XIn the DriveAssistmenu on the on-board
computer, select the LaneKeepingAssistfunction (Ypage 248).
XSelectStandardorAdaptive.
Standard
When Standard
is selected, no warning vibra-
tion occurs if:
Ryou switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
Ra driving safety system intervenes, such as
ABS, BAS or ESP®.
Adaptive
When Adaptive
is selected, no warning vibra-
tion occurs if:
Ryou switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
Ra driving safety system intervenes, e.g. ABS,
BAS or ESP®.
Ryou accelerate hard, e.g. kickdown.
Ryou brake hard.
Ryou steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
ing, the system recognizes certain conditions
and warns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. a highway.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes
Ryou cut the corner on a bend.
Driving Assistance PLUS package
General notes
The Driving Assistance PLUS package consists
of DISTRONIC PLUS (Ypage 186), Active Blind
Spot Assist (Ypage 219 )and Active Lane Keep-
ing Assist (Ypage 222).
Active Blind Spot Assist
General notes
Active Blind Spot Assist uses a radar sensor
system, pointed toward the rear of the vehicle,
to monitor the area to the sides of the vehicle
which the driver is unable to see. A warning dis- play in the exterior mirrors draws your attention
to vehicles detected in the monitored area. If
Driving systems219
Driving an d parking
Z
Possible displays in the multifunction dis-
play:
RZGearshift recommendation, when shifting
manually (Ypage 161)
Rj Active Parking Assist (Ypage 202)
RCRUISECruise control (Ypage 185)
RPLUG-IN HYBRID vehicles: READYPLUG-IN
HYBRID operation activated (see the Digital
Operator's Manual)
RPLUG-IN HYBRID vehicles: HYBRIDoperating
mode, additional operating mode displays
(see the Digital Operator's Manual)
RPLUG-IN HYBRID vehicles: èelectric
range (see the Digital Operator's Manual)
R_ Adaptive Highbeam Assist
(Ypage 120)
Rè ECO start/stop function (Ypage 150)
RëHOLD function (Ypage 194)
RaDISTRONIC PLUS Steering Assist and
Stop&Go Pilot (Ypage 192)
Head-up display
General notes
The head-up display projects information from
the navigation system and the driver assistance
system above the dashboard into the driver's
field of vision.
A requirement for the display of the contents is
that the following functions are available in the
vehicle and are switched on:
RCruise control
RDISTRONIC PLUS
RTraffic Sign Assist
RNavigation
The head-up display allows the driver to see all
of the information without having to take his
eyes off the road.
Important safety notes
The head-up display is only an aid and is not a
substitute for attentive driving.
The visibility of the head-up display is influenced by the following conditions:
Rthe driver's seat position
Rthe positioning of the display image
Rthe general ambient light
Rsunglasses with polarization filters
Rwet roads
Rblocking of sunlight by objects on the display
cover
In the event of extreme sunlight, sections of the
display may fade. This can be reversed by
switching the head-up display off and on again.
iVehicles with the head-up display are equip-
ped with a special windshield. Should repairs
be necessary, have the windshield replaced at
a qualified specialist workshop.
Displays and operation
Switching the head-up display on/off
XPress button :.
When the head-up display is switched on, the display appears in the driver's field of vision.
Standard displays in the head-up display
The head-up display shows the following
contents and information:
:Navigation messages
;Current speed
=Cruise control or DISTRONIC PLUS set
speed
?Detected traffic signs
238Displays and operation
On-board computer and displays
or
XTo exit the phone book:press the~or
% button.
Redialing
The on-board computer saves the last names or
numbers dialed in the redial memory.
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Telephonemenu.
XConfirm by pressing aon the steering
wheel.
XPress the 6button to switch to the redial
memory.
XPress the :or9 button to select the
desired name or number.
XPress the 6ora button to start dialing.
or
XTo exit the redial memory: press the~
or % button.
Assistance graphic menu
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Assistance Graphic
menu.
XConfirm by pressing aon the steering
wheel.
The multifunction display shows the
DISTRONIC PLUS distance display in the
assistance graphic.
The assistance graphic displays the status of
and information from the following driving
systems or driving safety systems:
RDISTRONIC PLUS (Ypage 186)
RTraffic Sign Assist (Ypage 215)
RDistance warning and the autonomous
braking function COLLISION PREVENTION
ASSIST PLUS (
Ypage 70)
RPRE-SAFE®Brake (Ypage 77)
RBlind Spot Assist (Ypage 216) or Active
Blind Spot Assist (Ypage 219)
RATTENTION ASSIST (Ypage 214)
RLane Keeping Assist (Ypage 218) or Active
Lane Keeping Assist (Ypage 222)
XPress :to display the ATTENTION ASSIST
assessment.
Service menu
Introduction
Depending on the equipment installed in the
vehicle, you have the following options in the
Service
menu:
RCalling up display messages in message
memory (Ypage 255)
RChecking the tire pressure electronically
(Ypage 369)
RCalling up the service due date
(Ypage 334)
RDisplaying the coolant temperature (PLUG-IN
HYBRID vehicles) (Ypage 246)
Displaying the coolant temperature
The Coolantmenu is only available in PLUG-IN
HYBRID vehicles.
Observe the notes on coolant temperature
(
Ypage 236).
XPress the òbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Servicemenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Coolantsubmenu.
XPressato confirm your selection.
The coolant temperature is shown in a bar
display.
246Menus and submenus
On-board computer and displays
XUsing:or9, select the DaytimeRunning Lightsfunction.
If the DaytimeRunningLightsfunction has
been switched on, the cone of light and the
W symbol are shown in white in the multi-
function display.
XPress the abutton to save the setting.
Further information on daytime running lamps
Daytime Running Lights
(Ypage 118).
Instrument cluster submenu
Selecting the distance unit
The DisplayUnitSpeed-/Odometerfunction
allows you to choose whether certain displays
appear in kilometers or miles in the multifunc-
tion display.
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the InstrumentClustersubmenu.
XPressato confirm.
XPress :or9 to select the DisplayUnit Speed-/Odometerfunction.
The current setting kmorMilesappears.
XPress the abutton to save the setting.
The selected unit of measurement for distance
applies to:
RDigital speedometer in the Tripmenu
ROdometer and the trip odometer
RTrip computer
RCurrent consumption and the range
RRange
RNavigation instructions in the Navimenu
RCruise Control
RDISTRONIC PLUS with Steering Assist and
Stop&Go Pilot
RASSYST PLUS service interval display
Selecting permanent display
This function is only available on PLUG-IN
HYBRID vehicles.
ThePermanent
Displayfunction allows you to
choose whether the multifunction display always shows the outside temperature or the
speed.
The speed display is inverse to the speedome-
ter.
XPress the
òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the InstrumentClustersubmenu.
XPressato confirm.
XPress :or9 to select the PermanentDisplayfunction.
XPressato confirm.
The current setting Outside Temperature
orSpeedometer[inverseHardwareSpeedUnit]appears.
XTo change the setting: pressaagain.
Switching the additional speedometer
on/off
This function is not available in PLUG-IN HYBRID
vehicles.
If the additional speedometer is switched on,
the speed is shown in the status bar in the mul-
tifunction display instead of the outside tem-
perature.
The speed display is inverse to the speedome-
ter.
XPress the òbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Instru‐ment Clustersubmenu.
XPressato confirm.
XUsing :or9, select the AdditionalSpeedometer [km/h]function.
The current selection appears.
XTo activate/deactivate: press theabut-
ton again.
Menus and submenus251
On-board computer and displays
Z