Page 241 of 537

Other
features of Active Distance Assist
DISTRONIC:
R Adjusts the driving style depending on the
selected drive prog ram (fuel-saving, comfor ta-
ble or dynamic) (/ page 211)
R Initiates acceleration tothe stored speed if the
turn signal indica tor is switched on tochange
to theove rtaking lane
R Reacts tostationa ryvehicles de tected in
urban speed ranges (e xcept bicycles and
mo torc yc les)
R Take s one-sided overtaking restrictions into
account on mo torw ays or on multi-lane roads
with separate car riag ewa ys(countr y-depend-
ent)
A
A dditional function av
dditional function available in cert
ailable in cert ain countr
ain countries:
ies:
if Ac tive Distance Assist DISTRONIC has braked
th eve hicle toa standstill, it can automatically fol-
low theve hicle in front when driving o. again
within 30 seconds. If a critical situation is de tec-
te d in the sur rounding area when driving o., such
as a person in theve hicle path, a visual and
acoustic warning is given indicating that the driver must now
take cont rol of theve hicle. The vehicle
is not accelerated any furt her.
Ac tive Distance Assist DISTRONIC is ready topull
aw ay when thegr een ç vehicle symbol 0ashes
cyclical ly.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 228).
Displa
Displa y in t
y in the dr
he dr iv
iver's displa
er's displa y in t
y in the
heAssistance
menu
menu 1
Vehicle in front
2 Distance indicator
3 Set speci/ed distance Ve
hicle de tected in front 1is highlighted in
gr een. It may also be in the lane tothe leT of your
ve hicle in situations where it is not permitted to
ove rtake on theright, forex ample on mo torw ays.
P
P er
er manent st
manent st atus display
atus display
R ç (gre y): Active Distance Assist
DISTRONIC selected but not yetactive
R ç (gre en speedome ter,white vehicle):
Ac tive Distance Assist DISTRONIC active,
speed set
R ç (gre en): Active Distance Assist
DISTRONIC active andvehicle de tected
The stored speed is shown under the permanent
status display and highlighted on the speedome-
te r. When Active Distance Assist DISTRONIC is
passive, the status display is grey ed out.
If th e speed of theve hicle in front or the speed
adjustment is less than the stored speed due to
th ero ute event ahead, the segments in the
speedome ter light up.
When the set speci/ed distance is increased or
decreased, theÒ display brie0y appears under
th eve hicle in the permanent status displa y.238
238
Driving and parking
Page 242 of 537

%
On mo torw ays or high-speed major roads, the
gr een ç vehicle symbol is displ ayed cycli-
cally when theve hicle is ready topull away.
% Ifyo u depress the accelerator pedal be yond
th e setting of theAc tive Distance Assist
DISTRONIC, the system is switched topassive
mode. The çsuspended message
appears in the driver's displa y.
Syst
Syst em limits
em limits
The system may be impaired or may not function
in thefo llowing situations, forex ample:
R In sno w,rain, fog, heavy spr ay, if there is glare,
in direct sunlight or in greatly varying light
conditions.
R The windscreen in the area of the camera is
dirty, misted up, damaged or co vered.
R Ifth era dar sensors are dirty or co vered.
R In multi-s tore y car par ksor on roads with
steep uphill or downhill gradients.
R Ifth ere are nar row vehicles in front, such as
bicycles or mo torc yc les. In addition, on slippery
roads, braking or acceler-
ating can cause one or se veral wheels tolose
traction and theve hicle could then skid.
Do not use Active Distance Assist DISTRONIC in
th ese situations. &
W WARNING
ARNING Risk of accident from accelera-
tion or braking byActive Distance Assist
DISTRONIC
Ac tive Distance Assist DISTRONIC may accel-
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis-
ta nce Assist DISTRONIC.
R Ifth e stored speed is called up and is con-
siderably faster or sl owerth an the cur-
re ntly driven speed.
R IfAc tive Distance Assist DISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Always carefully obser vethe tra1c con-
ditions and be ready tobrake at all
times. #
Take into account the tra1c situation
before calling up the stored speed. &
W
WARNING
ARNING Risk of accident due toinsu1-
cient deceleration byActive Distance
Assist DISTRONIC
Ac tive Distance Assist DISTRONIC brakes your
ve hicle with up to50% of the possible deceler-
ation. If this deceleration is not su1cient,
Ac tive Distance Assist DISTRONIC alerts you
with a visual and acoustic warning. #
Adjust your speed and maintain a suita-
ble distance from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. Driving and parking
239
239
Page 243 of 537

&
W
WARNI NG
ARNI NGRisk of accident if de tection
function of Active Distance Assist
DISTRONIC is impaired
Ac tive Distance Assist DISTRONIC does not
re act or has a limi tedre action:
R when driving on a di.erent lane or when
changing lanes
R topedest rians, animals, bicycles or sta-
tionary vehicles, or unexpected obs tacles
R tocomplex tra1c conditions
R tooncoming vehicles and crossing tra1c
As a result, Active Distance Assist DISTRONIC
may neither give warnings nor inter vene in
such situations. #
Always obser vethe tra1c conditions
carefully and react accordingl y.Oper Oper
ating A
ating A ctiv
ctive Dist
e Dist ance Assis
ance Assis t DIS
t DISTR
TRONIC and
ONIC and
t
t he v
he v ar
ariable limit
iable limit er
er
R
R eq
eq uir
uir ements:
ements:
Ac tive Distance Assist DISTRONIC:
R The electric parking brake is released. R
ESP ®
is activated and is not inter vening.
R The transmission is in position h.
R Allthe doors are closed.
R Check of thera dar sensor system has been
successfully comple ted.
R Snow chain mode is not active (/ page 399).
Va riable limi ter:
R The variable limi ter is selected. J
Adopts the stored/de tected speed
± Deacti vatesth eva riable limi ter/Active Dis-
ta nce Assist DISTRONIC
1 Increases/decreases the speed
K Increases/decreases the speci/ed distance
I Switches between theva riable limi ter and
Ac tive Distance Assist DISTRONIC 240
240
Driving and parking
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#
T
To oper
o oper at
ate A
e A ctiv
ctiv e Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC
ONIC
or t
or t he v
he v ar
ariable limit
iable limit er
er:
:press there specti ve
button with only one /nger or swipe on the
cont rol panel.
Switc
Switc hing be
hing be tw
tween t
een t he v
he var
ariable limit
iable limit er and A
er and Active
ctive
Dist
Dist ance Assis
ance Assist DIS t DISTR
TRONIC
ONIC #
Press I.
A
A ctiv
ctiv ating t
ating t he v
he var
ariable limit
iable limit er or A
er or Activ
ctive Dist
e Dist ance
ance
Assis
Assist DIS t DISTR
TRONIC
ONIC #
T
To activ
o activ at
ate wit
e wit hout a st
hout a st or
ored speed:
ed speed: press
M, NorJ. A Activ
ctiv e Dist
e Dist ance Assis
ance Assist t
DIS
DIS TR
TRONIC:
ONIC: remo veyour foot from the accel-
erator pedal.
The cur rent vehicle speed is stored and main-
ta ined (Active Distance Assist DISTRONIC) or
limited (variable limiter) bytheve hicle.
or #
T To activ
o activ at
ate wit
e wit h a st
h a st or
ored speed:
ed speed: pressJ.
A
A ctiv
ctiv e Dist
e Dist ance Assis
ance Assis t DIS
t DISTR
TRONIC:
ONIC: remo ve
yo ur foot from the accelerator pedal.
The last stored speed is called up and the
ve hicle main tains this speed (Active Distance Assist DISTRONIC) or does not
exceed it (vari-
able limiter).
If th e stored speed has been dele ted, the cur-
re nt vehicle speed is stored.
% When you switch o. theve hicle, the stored
speed is dele ted. When you activate Active
Distance Assist DISTRONIC, the last speed
stored forth eva riable limi ter is dele ted.
Incr Incr easing or r
easing or r educing t
educing the speed
he speed #
Toincrease the stored speed: swipe upwards
from the bottom of control panel 1.
R The stored speed is increased by1 km/h. #
Todecrease the stored speed: swipe down-
wa rds from theto p of control panel 1.
R The stored speed is decreased by1 km/h.
or #
Brie0y press Monthe upper section or
N onthe lo wer section of control panel
1.
The stored speed is increased or reduced by
10 km/h.
or #
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 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. Driving and parking
241
241
Page 245 of 537

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 the
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 244).The driven speed is adjusted when
theve hicle is
le ve l with the tra1c sign at the latest. In the case
of signs indicating entry into an urban area, the
speed is adap ted according tothe speed permit-
te d within the urban area. The speed limit display
in the driver's display is alw ays updated when the
ve hicle is le vel with the tra1c sign.
If yo u are driving on German mo torw ays and there
is no speed limit, the system uses the speed
stored for a str etch ofroad with no speed limit as
th e set speed. If you do not alter the stored speed
on a str etch ofroad with no speed limit, there c-
ommended speed of 130 km/h is adop ted.
If Ac tive Distance Assist DISTRONIC has been put
into passive mode bypressing the accelerator
pedal, only speed limits which are higher than the
set speed are adop ted.
The maximum permissible speed does not take
th ero ad condition and cur rent we ather and tra1c
conditions into account. Adjust your speed
accordingl y,when necessar y.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 228). 242
242
Driving and parking
Page 246 of 537

Syst
Syst
em limits
em limits
The system limits of Tra1c Sign Assist apply to
th e de tection of tra1c signs (/ page 255).
Speed limits below 20 km/h are not automatical ly
adop tedby the system as the stored speed. Tem-
porary speed restrictions (e.g. for a cer tain time
or due towe ather conditions) cann otbe proper ly
de tected bythe system. The maximum permissi-
ble speed applying toave hicle with a trailer is not
de tected bythe system.
Ad just the speed in these situations. &
W
WARNING
ARNING Risk of accident due toActive
Speed Limit Assist adapt ingtheve hicle's
speed
The speed adop tedby Active Speed Limit
Assist may be too high or incor rect in some
individual cases, such as:
R at speed limits below 20 km/h
R inwe t conditions or in fog
R when towing a trailer #
Ensure that the driven speed complies
with tra1c regulations. #
Adjust the driving speed tosuit cur rent
tra1c and weather conditions. F
F
unction of r
unction of r out
oute-based speed adapt
e-based speed adapt ation
ation
When Active Distance Assist DISTRONIC is activa-
te d, theve hicle speed will be adap ted accordingly
to thero ute events ahead. Depending on the drive
prog ram selected, theve hicle neg otiates a route
ev ent ahead in a fuel-saving, comfor table or
dynamic manner. When thero ute event has been
passed, theve hicle accelerates again tothe
stored speed. The set distance totheve hicle in
front, vehicles de tected ahead and speed restric-
tions ahead are take n into account.
Ro ute-based speed adap tation can be activa ted in
th e multimedia system (/ page 244).
The following route events are take n into account:
R Bends
R Roundabouts
R T-junctions
R Turns and exits 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 o. 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 /rst speed 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 Driving and parking
243 243
Page 247 of 537

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.
Sy
Sy st
stem 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, forex ample:
R unclear roads
R road nar rowing
R varying maximum permissible speeds in indi-
vidual lanes, forex ample at toll stations
R wetro ad sur faces, snow or ice
In these situations the driver must inter vene
accordingl y. &
W WARNI NG
ARNI NGRisk 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. Se
Se
tting A
tting A ctiv
ctive Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC dr
ONIC dr iving
iving
s
sty ty les
les
R
R eq
eq uir
uir ements:
ements:
R Active Distance Assist DISTRONIC is acti va-
te d. Multimedia system:
4 © 5
Settings 5
Assistance
5 Driving 5
Active Distance Assist
Selecting a dr
Selecting a dr iving s
iving stytyle
le #
Select DYNAMIC SELECT based ,Dynamic or
Comfort.
Se
Se tting speed adapt
tting speed adapt ation
ation #
Select For curves etc..
When these functions are active, theve hicle
speed is adjusted depending on thero ute
ev ents ahead.
% When one of thefo llowing systems is active,
th e de tected speed can be manually adopted
as the speed limit:
R Active Distance Assist DISTRONIC
R Variable limi ter
Fu rther information about Active Distance
Assist DISTRONIC (/ page 240).
% Further information on speed adap tation
(/ page 243). 244
244
Driving and parking
Page 248 of 537

F
F
unction of A
unction of A ctiv
ctiveSt
e St op-and-Go Assist
op-and-Go Assist
Ac tive Stop-and-Go Assist helps you when in traf-
fi c jams on multi-lane roads with separate car ria-
ge wa ys by automatically pulling away within up to
60 seconds and with moderate steering manoeu-
vres. It orients itself using theve hicle in front and
lane markings. Active Stop-and-Go Assist auto-
matically maintains a safe distance from theve hi-
cle in front and vehicles cutting in.
Ac tive Stop-and-Go Assist requ ires you, as the
driver, tokeep your hands on the steering wheel
at all times so that you are able tointer vene at
any time tocor rect the course of theve hicle and
ke ep it in lane.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 228).
Ac tive Stop-and-Go Assist activates automatically
when all of thefo llowing conditions are met:
R You are in a tra1c jam on a mo torw ay or high-
speed major road.
R Active Distance Assist DISTRONIC is acti vated
and active (/ page 240). R
Active Steering Assist is activated and active
(/ page 247).
R You are tr avelling no faster than 60 km/h.
When Active Stop-and-Go Assist is active the
¬ status displa y appears in the driver's dis-
pla y.
Syst Syst em limits
em limits
The system limitations of Active Distance Assist
DISTRONIC and Active Steering Assist apply to
Ac tive Stop-and-Go Assist (/ page 245). A
A
ctiv
ctiv eSt
e St eer
eer ing Assist
ing Assist F
F
unction of A
unction of A ctiv
ctiveSt
e St eer
eer ing Assist
ing Assist
Ac tive Steering Assist is only available up to a
speed of 210 km/h. The system helps youto stay
in the centre of the lane bymeans of moderate
steering inter ventions. Depending on the speed
driven, Active Steering Assist uses theve hicles
ahead and lane markings as a refere nce.
% Depending on the countr y,in the lo wer speed
ra nge Active Steering Assist can use the sur-
ro unding tra1c as a refere nce. If necessar y,
Ac tive Steering Assist can then also pr ovide assistance when driving outside
the centre of
th e lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist switches
to passive mode. The system pr ovides no support
in this case.
P
P er
er manent st
manent st atus displa
atus displa y in t
y in the dr
he dr iv
iver's display
er's display
Ø Grey
Gr ey:
:acti vated and passive
Ø Gr
Green:
een: activated and active
Ø R
Red,
ed, 0ashing:
0ashing: prompttothe driver to
actively con/rm or transition from active to
passive status, system limit de tected
% During the transition from active topassive
status, theØ symbol is shown as enlar ged
and 0ashing. Once the system is passive, the
Ø symbol is shown as grey inthe driver's
displa y.
Cont
Cont act det
act det ection
ection
The driver is requ ired tokeep their hands on the
stee ring wheel at all times and be able tointer-
ve ne at any time tocor rect the course of theve hi-
cle and keep it in lane. The driver must expect a Driving and parking
245
245