ve
hicle in situations where it is not permitted to
ove rtake on theright,for example 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 acti ve,
speed set
R ç (gre en): Active Distance Assist
DISTRONIC acti veand vehicle 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.%
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 following message appears brie0y
in the driver's display çsuspended.
Syst
Syst em limits
em limits
The system may be impaired or may not function
in thefo llowing situations,for example:
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. 232
232
Driving and parking
#
Take into account the tra1c situation
before calling up the stored speed. &
W
W ARNING
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. &
W
WARNING
ARNING Risk 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
TR ONIC 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 397).
Va riable limi ter:
R The variable limi ter is selected. Driving and parking
233
233
J
Adopts the stored/de tected speed
± Deacti vatesAc tive Distance Assist
DISTRONIC/ theva riable limi ter
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 #
T
T o 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 hes be
hes 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
ctiv e Dist
e Dist ance
ance
Assis
Assist DIS t DISTR
TRONIC
ONIC #
T
T o activ
o activ at
ate wit
e wit hout a st
hout a st or
or ed speed:
ed speed:
pressM, NorJ. A Activ
ctiv e Dist
e Dist ance
ance
Assis
Assist DIS t DISTR
TRONIC:
ONIC: remo ve yo urfoot from the
accelerator pedal.
The cur rent vehicle speed is stored and main-
ta ined (Active Distance Assist DISTRONIC) or
limited (variable limiter) bytheve hicle.
or #
T
T o 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 234 234
Driving and parking
#
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
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 217). Syst
Syst em limits
em limits
The system limits of Tra1c Sign Assist apply to
th e de tection of tra1c signs (/ page 251).
Speed limits below 20 km/h are not automatical ly
adop tedby the system as the stored speed. Tem-
porary speed restrictions (e .g.fo r 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 ada pting theve 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 acti va-
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 an energy-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 acti vated in
th e multimedia system (/ page 238).
The following route events are take n into account:
R Bends
R Roundabouts
R T-junctions
R Turns and exits 236
236
Driving and parking
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, Dynamicor
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 adop ted
as the speed limit:
R Active Distance Assist DISTRONIC
R Variable limi ter Fu
rther information about Active Distance
Assist DISTRONIC (/ page 233).
% Further information on speed adap tation
(/ page 236).
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 217). 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 233).
R Active Steering Assist is activated and active
(/ page 240).
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 238). 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 238
238
Driving and parking
stee
ring 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, theØ
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
ch ange from active topassive mode or vice versa
at any time. If
th e system de tects that the driver has not
steered theve hicle for a considerable period of
time or has remo vedth eir hands from the steering
wheel, an optical warning is given /rst. Display 1
appears in the driver's displa y.Ifth e driver still does not steer
theve hicle, or gives no con/rma-
tion tothe system, a warning tone sounds in addi-
tion tothe visual warning message.
If th e driver does not react tothis wa rning for a
considerable period, an emer gency stop is initi-
ated (/ page 241).
The warning is not issued or is stopped as soon as
th e system de tects that the driver has touched
th e steering wheel.
To uch de tection may be limited or inoperative in
th efo llowing situations:
R The driver is wearing glo ves.
R There is a steering wheel co ver on the steering
wheel.
If Ac tive Steering Assist de tects that a system
limit has been reached, a visual warning is issued
and a warning tone sounds.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 217).
Syst
Syst em limits
em limits
Ac tive Steering Assist has a limited steering tor-
qu efo r lateral guidance. In some cases, the steer- Driving and parking
239
239
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