Display when DISTRONIC PLUS is deacti-
vate d
:Vehicl ein front, if detecte d
;Distanceindicator, curren tdistanc eto
th evehicl ein fron t
=Specified minimum distanc eto th evehi-
cle in front; adjustable
?Own vehicl e
XSelectth eAssistanc eGraphi cfunction
usin gth eon-boar dcomputer
(
Ypage 231).
Display when DISTRONIC PLUS is activa -
te d
:Vehicl ein front, if detecte d
;Specified minimum distanc eto th evehi-
cle in front; adjustable
=Own vehicl e
?DISTRONIC PLU Sactivated
XSelec tth eAssistanc eGraphi cfunction
usin gth eon-boar dcomputer
(
Ypage 231). You will initially see th
estore dspeed fo r
about fiv eseconds when you activat e
DISTRONIC PLUS.
Deactivating DISTRONIC PLUS
GWARNIN G
DISTRONIC PLU Sis deactivated and release s
th ebrakes if th evehicl eis slowed down to a
speed belo w20 mph (30km/h )by th esystem,
provided that DISTRONIC PLU Sdoe sno t
detec t avehicl edirectl yin front. At this point,
th edriver mus tapply th ebrakes in order to
slo wdown further and bring th evehicl eto a
standstill.
Cruis econtrol lever
There are several ways to deactivat e
DISTRONIC PLUS:
XBriefly press th ecruise control lever for-
ward s:.
or
XBrake ,unless th evehicl eis stationary
Whe nyou deactivat eDISTRONIC PLUS, you
will see th eDISTRONIC
PLU SOffmessage in
th emultifunction display fo rapproximately
fiv eseconds.
iThe last speed store dremain sstore duntil
you switch of fth eengine.
iDISTRONIC PLU Sis no tdeactivated if you
depress th eaccelerato rpedal .If you accel-
erat eto overtake ,DISTRONIC PLU S
adjust sth evehicle's speed to th elast
speed store dafter you hav efinished over-
taking.
Driving systems18 9
Driving an d parking
Z
DISTRONIC PLUS is automatically deactiva-
ted if:
Ryou engage the electric parking brake or if
the vehicle is automatically secured with
the electric parking brake
Ryou are driving slower than 15 mph
(25 km/h) and there is no vehicle in front,
or if the vehicle in front is no longer detec-
ted
RESP®intervenes or you deactivate ESP®
Rthe transmission is in theP,R or Nposition
Ryou pull the cruise control lever towards
you in order to pull away and the front-
passenger door is open
Rthe vehicle has skidded
If DISTRONIC PLUS is deactivated, you will
hear a warning tone. You will see the
DISTRONIC PLUS Off
message in the multi-
function display for approximately five sec-
onds.
Tips for driving with DISTRONIC PLUS
General notes
The following contains descriptions of certain road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated.
Cornering, going into and coming out of a
bend
The ability of DISTRONIC PLUS to detect vehi-
cles when cornering is limited. Your vehicle
may brake unexpectedly or late. Vehicles traveling on a different line
DISTRONIC PLUS may not detect vehicles
traveling on a different line. The distance to
the vehicle in front will be too short.
Other vehicles changing lanes
DISTRONIC PLUS has not detected the vehi-
cle cutting in yet. The distance to this vehicle
will be too short.
Narrow vehicles
DISTRONIC PLUS has not yet detected the
vehicle in front on the edge of the road,
190Driving system
s
Driving an d parking
because of its narrow width. The distance to
the vehicle in front will be too short.
Obstructions 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.
Crossing vehicles
DISTRONIC PLUS may mistakenly detect
vehicles that are crossing your lane. Activat-
ing DISTRONIC PLUS at traffic lights with
crossing traffic, for example, could cause
your vehicle to pull away unintentionally.
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 automati-
cally in certain situations.
To prevent damage to the vehicle, deacti-
vate DISTRONIC PLUS and the HOLD func-
tion in the following or other similar situa-
tions:
Rwhen towing the vehicle
Rin the car wash
Deactivate the HOLD function (
Ypage 192) .
Driving systems191
Driving and parking
Z
Problems with Night View Assist Plus
ProblemPossible causes/consequences andMSolutions
The picture quality of
Night View Assist Plus
has deteriorated.The windshield is fogged up on the inside.
XFold down camera cover (Ypage 547).
XDefrost the windshield (Ypage 144).
The windshield is iced up.
XDe-ice the windshield (Ypage 143).
The windshield wipers are smearing the windshield.
XReplace the wiper blades (Ypage 131).
The windshield is smeared after the vehicle has been cleaned in a
car wash.
XClean the windshield (Ypage 545).
There is windshield chip damage in the camera's field of vision.
XReplace the windshield.
The pedestrian and ani-
mal recognition is not
available.The infrared camera in the radiator grill is dirty.
XUse a soft cloth and water to clean the infrared camera.
Active Driving Assistance package
General notes
The Active Driving Assistance package con-
sists of DISTRONIC PLUS (
Ypage 182), Active
Blind Spot Assist (
Ypage 214) and Active
Lane Keeping Assist (
Ypage 217).
Active Blind Spot Assist
General notes
Active Blind Spot Assist uses a radar sensor
system to monitor the side areas of your vehi-
cle which are behind the driver. A warning
display in the exterior mirrors draws your
attention to vehicles detected in the moni-
tored area. If you then switch on the corre-
sponding turn signal to change lanes, you will
also receive an optical and audible collision
warning. If a risk of lateral collision is detec-
ted, corrective braking may help you avoid a collision. To support the course-correcting
brake application, Active Blind Spot Assist
also uses the forward-facing radar sensor sys-
tem.
Active Blind Spot Assist supports you from a
speed of approximately 20 mph (30 km/h).
For Active Blind Spot Assist to assist you
when driving, the radar sensor system must
be operational.
Important safety notes
Active Blind Spot Assist is only an aid. It may
fail to detect some vehicles and is no substi-
tute for attentive driving.
GWARNING
Active Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large speed
differential and overtake your vehicle
214Driving systems
Driving and parking
Useful information
i
This 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 (
Ypage 34).
Important safety notes
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 control
of 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.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
GWARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The
operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messages
or warnings from certain systems in the mul-
tifunction display. You should therefore make sure your vehicle is operating safely at all
times.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration (
Ypage 41).
Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is located on the bottom left of the instrument cluster
(
Ypage 41).
XTurn the brightness control knob clockwise
or counter-clockwise.
If you turn the light switch to Ã,Tor
L, the brightness is dependent upon
the brightness of the ambient light.
iThe 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.
Speedometer with segments
The speedometer is divided into segments
only on vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available.
RDISTRONIC PLUS activated (Ypage 182):
One or two segments in the set speed
range light up.
RDISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
222Displays and operation
On-board computer and displays
RActivating/deactivating Active Blind Spot
Assist (
Ypage 231)
RActivating/deactivating Active Lane Keep-
ing Assist (
Ypage 232)
Displaying the assistance graphic
XPress the=or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress9or: to select Assistance
Graphic.
XPressato confirm your selection.
The multifunction display shows the
DISTRONIC PLUS distance display in the
assistance graphic.
The assistance graphic shows you the sta-
tus of and/or information from other driv-
ing systems or driving safety systems:
RDISTRONIC PLUS (Ypage 189)
RPRE-SAFE®Brake (Ypage 77)
RATTENTION ASSIST (Ypage 209)
RActive Lane Keeping Assist
(
Ypage 217)
RSpotlight function of Night View Assist
Plus (
Ypage 233)
Activating/deactivating PRE-SAFE®
Brake
PRE‑SAFE®Brake is only available in vehicles
with DISTRONIC PLUS.
XPress the =or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress the9or: button to select
PRE-SAFE Brake
.
XPress ato confirm your selection.
The current selection appears.
XTo activate/deactivate: press thea
button again.
When the PRE-SAFE
®Brake is deactivated,
the multifunction display in the assistance
graphic shows the æsymbol.
For more information on PRE‑ SAFE
®Brake,
see (
Ypage 77).
Activating/deactivating ATTENTION
ASSIST
XPress the =or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress the9or: button to select
Attention Assist
.
XPress ato confirm your selection.
The current selection appears.
XTo activate/deactivate: press thea
button again.
When ATTENTION ASSIST is deactivated,
the é symbol appears in the multifunc-
tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (
Ypage 209).
Activating/deactivating Active Blind
Spot Assist
XPress the =or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress the9or: button to select
Blind Spot Assist
.
XPress ato confirm your selection.
The current selection appears.
XTo activate/deactivate: press thea
button again.
For further information about Active Blind
Spot Assist, see (
Ypage 214).
Menus and submenus231
On-board computer and displays
Z
Rthe trip computer
Rthe current consumption and the range
Rthe navigation instructions in theNavi
menu
Rcruise control
RDISTRONIC PLUS
RASSYST PLUS service interval display
Selecting permanent display
The Permanent Display:
function allows
you to choose whether the multifunction dis-
play always shows the outside temperature or
the speed in km/h. Canada only: the speed is
shown in mph. The speed display is inverse to
the speedometer.
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Instrument Cluster
submenu.
XPress ato confirm.
XPress the :or9 button to select the
Permanent Display:
function.
The current setting Outside
Temperature
orSpeedometer [km/h]/Speedometer
[mph]appears.
XPress the abutton to save the setting.
Lights
Setting the daytime running lamps
This function is not available in Canada.
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Light
submenu.
XPress ato confirm.
XPress :or9 to select the Daytime
Running Lightsfunction.
If the Daytime Running Lights
function
has been switched on, the multifunction
display shows the cone of light and the
W symbol in orange.
XPress the abutton to save the setting. Further information on daytime running
lamps (
Ypage 122).
Switching the spotlight function on/off
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Light
submenu.
XPress ato confirm.
XPress :or9 to select the Spot‐
light:function.
When the spotlight function is activated,
the assistance graphic shows the pedes-
trian symbol.
XPress the abutton to save the setting.
Further information on the spotlight function
of Night View Assist Plus (
Ypage 213).
Setting the brightness of the ambient
lighting
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Light
submenu.
XPress ato confirm.
XPress the :or9 button to select the
Amb. Light +/-
function.
The current setting appears.
XPress ato confirm.
XPress the :or9 button to adjust the
brightness to a level from Disabled
to
Level 5
(bright).
XPress the aor% button to save the
setting.
Setting the ambient lighting color
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Light
submenu.
XPress ato confirm.
XPress the :or9 button to select the
Ambient Light Color
function.
XPress ato confirm.
Menus and submenus233
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
Radar Sensors
Dirty See Opera‐
tor's Manual
At leaston eof th efollowing drivin gsystems or drivin gsafet ysys-
tems is temporarily restricted or inoperative:
RPRE-SAF E®Brake
RDISTRONIC PLU S
RActive LaneKeepin gAssis t
RActive Blind Spot Assis t
If th erada rsensor system in fron tis dirty, Active Blind Spot Assis t
will no tperform acourse-correcting brak eapplication .
Possibl ecauses are:
Rth esensor sin th eradiato rtrim and/o rin th ebumpers are dirty
Rth efunction of th edrivin gsystem and/o rdrivin gsafet ysystem
is impaire ddue to heav yrain or snow.
A warnin gtone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears. Al ldrivin gsystems and drivin gsafet ysystems
are operative again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 171).
XSwitchof fth eengine.
XClean th esensor sin th efollowing location s (Ypage 546):
Rin theradiato rtrim
Rin th efron tbumper
Rin th erear bumper, particularl yin th emiddle of th erear
bumper
XRestart th eengine.
The display message disappears.
A
Malfunction Ser ‐
viceRequired
The rol lbars are defective.
GWARNIN G
The rollbars will then possibl yno tbe extended in th eevent of an
accident.
There is an increase dris kof injury.
XVisit aqualified specialist workshop immediately.
248Display messages
On-board computer and displays