#
Press and hold Monthe upper section or
N onthe lo wer section of control panel
1.
The stored speed is increased or reduced in
increments of 10 km/h.
or #
Accelerate theve hicle tothe desired speed. #
Press Monthe upper section of control
panel 1.
A A dop
dop ting t
ting t he limit speed sho
he limit speed sho wn in t
wn in the dr
he driv
iver's dis-
er's dis-
play
play #
Activate Active Distance Assist DISTRONIC or
th eva riable limi ter: press M, Nor
J. #
Accept the displa yed speed limit: press J.
The limit speed displa yed in the driver's dis-
play is adop ted as the stored speed. The vehi-
cle adapts its speed tothat of theve hicle in
front, but only up tothe stored speed, or limits
its speed accordingl y.
% A speed limit sh own in the driver display is
only adop ted while driving, not when station-
ar y. Pulling
awa
Pulling away wit
y wit h A
h Activ
ctiv e Dist
e Dist ance Assi st
ance Assist
DIS
DIS TR
TRONIC
ONIC #
Activate Active Distance Assist DISTRONIC
and remo ve yo urfoot from the brake pedal. #
Press J.
or #
Depress the accelerator pedal brie0y and
/rml y.
The functions of Active Distance Assist
DISTRONIC continue tobe car ried out.
R
R educing or incr
educing or incr easing t
easing t he
hespeci/ed
speci/ed dist
distance
ance
fr
fr om t
om t he v
he vehicle in fr
ehicle in fr ont
ont #
Press K.
The h display appears. The speci/ed dis-
ta nce is reduced byone le vel.
If th e lo west le vel is already selected, the
selection jumps tothe highest le vel. Deactiv
Deactiv
ating A
ating Activ
ctive Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC or
ONIC or
t
t he v
he v ar
ariable limit
iable limit er
er &
W
WARNING
ARNING Risk of an accident due to
Ac tive Distance Assist DISTRONIC being
acti vewhen you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Distance Assist
DISTRONIC onl y,theve hicle can rollaw ay. #
Always deacti vate Ac tive Distance Assist
DISTRONIC and secure theve hicle to
pr ev ent it from rolling away before you
lea vethe driver's seat. #
Press ±.
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter-
ve nes, Active Distance Assist DISTRONIC is
deactivated. The variable limi ter is not deacti-
va ted.
F
F unction of A
unction of A ctiv
ctive Speed Limit Assist
e Speed Limit Assist
If a change in the speed limit of 20 km/h or more
is de tected and automatic adoption of speed lim-
its is activated, the new speed limit is automati-
cally adop ted as the stored speed (/ page 238). Driving and parking
235
235
R
Tra1c jams ahead (only with Live Tra1c )
Also, the speed is reduced if the turn signal indi-
cator is switched on and one of thefo llowing sit-
uations is de tected:
R Turning at junctions
R Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts and
tra1c lights, as route-based speed adap tation
does not brake theve hicle toa standstill.
If a cor responding route event is de tected while
ro ute guidance is active, the /r stspeed adjust-
ment is car ried out automaticall y.Ifth e turn signal
indicator is switched on, the selected route is
con/ rmed and fur ther speed adjustment is activa-
te d.
Speed adap tation is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched o.
before thero ute event and it is therefore assumed
that thero ute event is not releva nt
to the driver.
R Ifth e driver depresses the accelerator or
brake pedal during the process.
Syst
Syst em limits
em limits
Ro ute-based speed adap tation does not take right
of wa yre gulations into account. The driver is
re sponsible for complying with road tra1c regula-
tions and driving at a suitable speed.
In di1cult conditions, the speed selection made
by the system may not alw ays be suitable. This
applies tothefo llowing situations, fore xamp le:
R unclear roads
R Road nar rowing
R varying maximum permissible speeds in indi-
vidual lanes, fore xamp le attoll stations
R wetro ad sur faces, snow or ice
R if transport equipment, fore xamp le a trailer or
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor-
re ctly es tablished In
these situations the driver must inter vene
accordingl y. &
W WARNING
ARNING Risk of accident in spi teof
ro ute-based speed adap tation
Ro ute-based speed adap tation can malfunc-
tion or be temp orarily una vailable in thefo l-
lowing situations:
R Ifth e driver does not follow the calculated
ro ute
R If map data is not up-to-date or available
R Intheev ent of roadwor ks
R In bad weather or road conditions
R Ifth e accelerator pedal is depressed
R Intheev ent of electronically displa yed
speed limi tations #
Adapt the speed tothe tra1c situation. Driving and parking
237
237
ing inter
vention is not su1cient tokeep theve hi-
cle in the lane.
The system may be impaired or may not function
in thefo llowing instances:
R There is poor visibility, e.g. due tosno w,rain,
fo g, heavy spr ay,gr eatly varying light condi-
tions or strong shadow s onthe car riag ewa y.
R There is glare, e.g. from oncoming tra1c,
di re ct sunlight or re0ections.
R Insu1cient road illumination.
R The windscreen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by a stic ker.
R No, or se veral, unclear lane markings are pres-
ent for one lane, or the markings change
qu ickl y,fore xamp le, in a construction area or
junctions.
R The lane markings are wornawa y,dark or co v-
ered up, e.g. bydirt or sno w.
R Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R The road is na rrow and winding. R
There are obs tacles on the lane or projecting
out into the lane, suchas object mar kers.
R if transport equipment, fore xamp le a trailer or
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor-
re ctly established
The system does not pr ovide assistance in thefo l-
lowing conditions:
R Onvery tight bends and when turning.
R When crossing junctions.
R Atroundabouts or toll stations.
R When actively changing lane without switching
on the turn signal indicator.
R When the tyre pressure is too lo w. &
W WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly stops functioning
If th e system limits of Active Steering Assist
are reached there is no guarantee that the
system will remain active or will keep theve hi-
cle in lane. #
Alwayske ep your hands on the steering
wheel and obser vethe tra1c carefull y. #
Always steer theve hicle paying attention
to tra1c conditions. &
W
WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected steer-
ing inter ventions. #
Steer according totra1c conditions. A A
ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctiveSt
e St eer
eer ing Assist
ing Assist
R
R eq
eq uir
uir ements:
ements:
R ESP ®
is activated, but is not inter vening.
R Active Distance Assist DISTRONIC is acti va-
te d.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Driving #
Activate or deactivate Active Steering Assist.240
240
Driving and parking
F
F
unction of A
unction of A ctiv
ctive Emerg
e Emerg encySt
ency Stop Assist
op Assist Ac
tive Emer gency Stop Assist monitors the steer-
ing wheel and the accelerator and brake pedals. If
th e system de tects a lack of driver activity and the
ve hicle thre atens tolea vethe lane, a warning can
be issued and an emer gency stop initia ted.
V
V ehicles wit
ehicles wit hout Dr
hout Dr iving Assist
iving Assist ance P
ance Pack
ackag
age:
e: The
system is available from a speed of appr ox.
60 km/h.
V
V ehicles wit ehicles wit h Dr
h Driving Assist
iving Assist ance pack
ance packag
age:
e: If
Ac tive Steering Assist is switched o., the system
is available from a speed of appr ox. 60 km/h.
If th e system de tects that theve hicle is thre aten-
ing tolea vethe lane, a warning can be issued and
an emer gency stop initia ted.
R The driver does not touch the steering wheel
fo r a longer period of time or no steering
mo vement can be measured for a longer
period of time (depending on theve hicle
equipment).
R Neither the accelerator nor the brake pedal is
depressed. %
V
V ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance pack
ance packag
age:
e: if
Ac tive Steering Assist is switched on and
active, only the steering wheel is monitored by
th e system. If the driver does not touch the
stee ring wheel for a longer period of time, a
wa rning may be given despite pedal actuation.
Also obser vethe inst ructions on the contact
de tection of Active Steering Assist
(/ page 238). Ac
tive Emer gency Stop Assist issues thefo llowing
wa rnings in order:
R Display message 1appears in the driver's
displa y. R
In addition todisplay 1awa rning tone
sounds.
R The messa geBeginning emergency stop will
appear in the driver's displa y,a continuous
wa rning tone will sound, theve hicle will no
lon ger accelerate and, if necessar y,slight belt
te nsioning will be produced.
R The vehicle speed is reduced in increments
until it is at a standstill. Sharp brake impulses
are also produced.
% V
V ehicles wit ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
ag e:
e: If
Ac tive Distance Assist DISTRONIC is acti ve
and the driver unfastens the seat belt and
driver's door, an emer gency stop can be initi-
ated immedia tely.
V
V ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
Depending on the countr y,a lane change tothe
adjacent right-hand lane is carr ied out, if possible.
It is only possible tochange across one lane and
only into theright-hand lane, and not onto the
hard shoulder.
When automatic braking is initiated, Active Dis-
ta nce Assist DISTRONIC is deactivated. Depend- Driving and parking
241 241
R
The vehicle cann otmake the lane change as
planned.
Cancellation of Active Lane Change Assist is dis-
pla yed as follo ws:
R The ar row in the selected direction of tr avel
turns red.
R A cor responding message will also appear in
th e driver's displa y.
R In cer tain circumstances a warning tone
sounds. &
W
WARNI NG
ARNI NGRisk of accident when changing
lane toan occupied adjacent lane
Lane Change Assist cann otalw ays clear ly
de tect if the adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free. #
Before changing lanes, make sure that
th e neighbouring lane is free and there is
no danger toother road users. #
Monitor the lane change. &
W
WARNING
ARNING Risk of accident if Lane Change
Assist unexpectedly stops functioning
If th e system limitations for Lane Change
Assist ha vebeen reached, there is no guaran-
te eth at the system will remain active.
Lane Change Assist cannot then assist youby
applying steering torque. #
Alwa ys monitor the lane change and
ke ep your hands on the steering wheel.
Obser vethe tra1c conditions and steer
and/or brake if necessar y. Syst
Syst
em limits
em limits
The system limitations of Active Steering Assist
apply toActive Lane Change Assist
(/ page 238).
The system may also be impaired or may not func-
tion in thefo llowing situations:
R The sensors are damaged, co vered or dirty
(/ page 217).
R The exterior lighting sho ws adefect. R
The system does not de tect a suitable road,
fo re xamp le, in tight bends or shortly aTer a
slip road.
R The vehicle is on a construction site.
% The Active Lane Change Assist sensors adjust
automatically while a cer tain distance is being
driven aTer theve hicle has been deli vered.
Ac tive Lane Change Assist is una vailable or
only partially available during this teach-in
process, and no ar rows are displ ayed next to
th eØ Active Steering Assist symbol.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 217).
Selecting A
Selecting A ctiv ctive Lane Chang
e Lane Chang e Assist
e Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Driving #
Select Aktiver Spurwechsel-Assistent (Active
Lane Change Assist). 244
244
Driving and parking
R
Atspeeds up toappr oximately 70 km/h when
approaching stationary pedestrians and
cyclists.
Cancelling a br
Cancelling a br ak
ak e application of A e application of A ctiv
ctiv e Br
e Br ake
ake
Assist
Assist
Yo u can cancel a brake application of Active
Brake Assist at any time by:
R Fully depressing the accelerator pedal or with
kickdown.
R Releasing the brake pedal.
Ac tive Brake Assist may cancel the brake applica-
tion when one of thefo llowing conditions is ful/l-
led:
R You manoeuvre toavo idthe obstacle.
R There is no longer a risk of collision.
R An obs tacle is no longer de tected in front of
yo ur vehicle. R R
eaction t eaction t o oncoming r
o oncoming r oad user
oad users (onl
s (only v
y vehicles
ehicles
wit
wit h Dr
h Dr iving Assist
iving Assist ance P
ance Pack
ackag
age)
e)
Ac tive Brake Assist can also react todetected
oncoming road users:
R Reaction up tospeeds of appr oximately
100 km/h
R Warning for oncoming road users thro ugh
acoustic warning and warning lamp
R Autonomous braking application in order to
re duce the se verity of an accident
Ev
Ev asiv
asiv eSt
e St eer
eer ing Assist
ing Assist &
W
WARNING
ARNING Risk of accident despite Eva-
sive Steering Assist
Evasive Steering Assist cannot alw aysre cog-
nise objects or complex tra1c situations
clear ly.
Moreo ver,th e steering support pr ovided by
Evasive Steering Assist is not su1cient to
avo id a collision. #
Always pay careful attention tothe tra1c
situation; do not relyon Evasive Steering
Assist alone. #
Be prepared tobrake or swer veif neces-
sar y. #
End the support byactively steering in
non-critical situations. #
Drive at an appropriate speed if there
are pedestrians close tothe path of your
ve hicle. Evasive
Steering Assist has thefo llowing charac-
te ristics:
R Detection of pedestrians, cyclists and vehi-
cles.
R Assis tance thro ugh po wer-assis ted steering if
it de tects a swerving manoeuvre.
R Activation byan abrupt steering mo vement
during a swerving manoeuv re.
R Assistance during swerving and straigh tening
of theve hicle. 248 248
Driving and parking
Display in
the driver's display in theAssistance menu
If a vehicle is de tected at speeds abo veappr ox-
imately 12 km/h and this vehicle enters thewa rn-
ing range immedia tely aTer wards, thewa rning
lamp in the cor responding outside mir ror lights up
re d. In theAssistance menu,the lamp in outside
mir ror1 also lights up red, and the lane in which
th eve hicle is de tected is hatched out.
If a vehicle is de tected in thewa rning range and
yo u switch on the turn signal indicator in the cor-
re sponding direction, a double warning tone
sounds once, and thewa rning lamp 0ashes red in
th e cor responding outside mir ror.Re dra dar wav
es2 are displa yed next toyour vehicle in the
assis tance graphic.
If th e turn signal indicator remains on, the display
in the outside mirror 0ashes for all other de tected
ve hicles, but no fu rther warning tone sounds. If
yo uove rtake a vehicle quickl y,no warning is
given.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 217). &
W WARNING
ARNING Risk of accident despite Blind
Spot Assist
Blind Spot Assist does not react tovehicles
approaching and overtaking you at a greatly
di.erent speed.
Blind Spot Assist cannot warndrivers in this
situation. #
Always pay careful attention tothe tra1c
situation and maintain a safe distance at
th e side of theve hicle. Exit w Exit w
ar
arning
ning
The exitwa rning is an additional function of Blind
Spot Assist and Active Blind Spot Assist and can
wa rnvehicle occupants attem pting tolea vea sta-
tionary vehicle about approaching vehicles. &
W
WARNING
ARNING Risk of accident despite exit
wa rning
The exitwa rning neither reacts tostationa ry
objects nor topersons or road users
approaching you at a greatly di.ering speed.
The exitwa rning cannot warndrivers in these
situations. #
Always pay particular attention tothe
tra1c situation when opening the doors
and make sure there is su1cient clear-
ance. If a
vehicle is de tected in the monitoring range,
th ere dwa rning lamp lights up in the cor respond-
ing outside mir ror.
If a vehicle occupant pulls the door handle on the
side of thewa rning, a warning tone sounds twice
and the ambient lighting in there spective door 256
256
Driving and parking
and
thewa rning lamps in the cor responding out-
side mir ror 0ash red.
% V
V ehicles wit
ehicles wit h ambient lighting:
h ambient lighting: theWarning
assistance ofthe ambient lighting can be
activated and deactivated (/ page 153).
% The warning assistance can di.er depending
on the equipment and may vary according to
th e setting.
The exitwa rning is only available when Blind Sp ot
Assist is activated and up toa maximum of three
minutes aTer theve hicle has been switched o..
The exitwa rning is no longer available once the
wa rning lamp in the outside mir ror 0ashes three
times.
The exitwa rning is only an aid and not a substi-
tute forth e attention of vehicle occupants. The
re sponsibility for opening and closing the doors
and for leaving theve hicle remains with theve hi-
cle occupants. Syst
Syst em limits em limits
Blind Spot Assist and Active Blind Spot Assist may
be limited in thefo llowing situations, in particular:
R ifth ere is dirt on the sensors or the sensors
are obscured
R in poor visibility, e.g. due tofog, heavy rain or
snow
R ifth ere are nar row vehicles, e.g. bicycles or
mo torbikes
R ifth ero ad has very wide or nar row lanes
R ifve hicles are not driving in the middle of their
lane
Wa rnings may be issued in er ror when driving
close tocrash bar riers or similar continuous lane
borders. Alw ays make sure that there is su1cient
distance tothe side forot her tra1c or obs tacles.
Wa rnings may be inter rupted when driving along-
side long vehicles, forex ample lor ries, for a pro-
longed time.
Blind Spot Assist and Active Blind Spot Assist are
not operational when reve rsege ar is engaged. Blind Sp
otAssist and Active Blind Spot Assist are
not operational if transport equipment, forex am-
ple a trailer or bicycle rack , is attached tothe
trailer hitch and the electrical connection has
been cor rectly es tablished.
Ad ditionall y,theex itwa rning may be limited in the
fo llowing situations:
R when the sensors are co veredby adjacent
ve hicles in nar row parking spaces
R when people approach theve hicle
R intheev ent of stationary or slo wlymoving
objects
F
F unction of t unction of t he br
he brak
ake application of A
e application of A ctiv
ctive Blind
e Blind
Spo
Spo t Assist
t Assist
% The brake application function is only availa-
ble forve hicles with a Driving Assis tance
Pa ckage.
If Ac tive Blind Spot Assist de tects a risk of a side
impact in the monitoring range, a cou rse-cor rect-
ing brake application is car ried out. This is
designed tohelp youavo id a collision. Driving and parking
257
257