2021 MERCEDES-BENZ S-CLASS SALOON LONG sensor

%
Depending on theve hicle equipment, not all
future route events may be de tected bythe
system.
Syst
Syst em limits
em limits
If th e calculated route is adhered towhen route
guidance is active, ECO Assist will operate with
gr eater accuracy. The basic function is also availa-
ble without active route guidance. Not all informa-
tion and tra1c situations can be fore seen. The
qu ality depends on the map data.
ECO Assist is only an aid. The driver is responsible
fo rke eping a safe distance from theve hicle in
front, forve hicle speed and for braking in good
time.
The system may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth e windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
up, damaged or co vered. R
Ifth era dar sensors are dirty or damaged.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered.
R Ifth e information in the navigation system's
digital map is incor rect or out-of-date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes.
A A ctiv
ctiv ating or deactiv
ating or deactiv ating EC
ating ECO AssistO Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Driving #
Activate or deactivate the function. F
F
unction of t
unction of t he r
he rout
oute-based oper
e-based oper ating-mode str
ating-mode str at-
at-
egy (plug-in h
egy (plug-in h ybr
ybrid)
id) %
The following function is countr y-dependent
and available only in conjunction with an inte-
gr ated navigation system.
The route-based operating-mode strategy is active
under thefo llowing conditions:
R Drive prog ram n is selected. R
The "route based" option (/ page 228) is
selected for drive prog ram n inthe
DYNAMIC SELECT menu.
R Route guidance is active.
R The state of charge ofthe high-voltage battery
is su1cient.
If th e function is active, data on the fur ther course
of thero ute is evaluated. This includes, e.g. road
type, speed limi tations and altitude data.
The hybrid system then adapts the operating
strategy tothe fur ther course of thero ute:
R Use of electrical energy and the combustion
engine are adap ted.
R State of charge ofthe high-voltage battery is
controlled accordingl y.
R Electrical energy is reser ved especially for
electric mode, e.g. urban route sections.
R The vehicle automatically selects the operat-
ing mode. Driving and parking
225
225

Inf
Inf
or
ormation on v
mation on v ehicle sensor
ehicle sensor s and camer
s and cameras
as Some driving and driving saf
ety sy stems use cam-
eras as well as radar or ultrasonic sensors to
monitor the area in front of, behind or next tothe
ve hicle. 1
Multifunction camera
2 Cameras in the outside mir rors
3 Front radar
4 Front camera
5 Corner radars
6 Ultrasonic sensors
7 Reversing camera &
W
WARNING
ARNING Risk of accident due torestric-
te d de tection per form ance of vehicle sen-
sors and cameras
If th e area around vehicle senso rsor cameras
is co vered, damaged or dirty, cer tain driving
and saf ety sy stems cannot function co rrectl y.
There is a risk of an accident. #
Keep the area around vehicle senso rsor
cameras clear of any obst ructions and
clean. #
Have damage tothe bumper, radiator
gr ille or stone chipping in the area of the
front and rear wind owsre paired at a
qu ali/ed specialist workshop. Pa
rticular ly,ke ep the areas around the sensors
and cameras free of dirt, ice or slush
(/ page 433). The sensors and cameras must
not be co vered and the de tection ranges around
th em must be kept free. Do not at tach additional
licence plate brac kets, advertisements, stic kers,
fo ils or foils toprotect against stone chippings in
th e de tection range of the sensors and cameras. Driving and parking
267 267

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 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.
% 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. 278
278
Driving and parking

&
W
WARNI NG
ARNI NGRisk 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
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 462).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 Driving and parking
279
279

R
Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R The road is nar row and winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
R If transpo rtequipment, forex ample a trailer or
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor-
re ctly es tablished.
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 activa-
te d.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Driving #
Select ØAct. Steering Asst . 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 uses touch sensors
to monitor whe ther the driver holds the steering
wheel and initiates an emer gency stop if neces-
sa ry.
If Ac tive Steering Assist is deactivated, the accel-
erator and brake pedal are monitored as well as
th e steering wheel. A warning is issued when the
stee ring wheel is not being held or when a pedal
is not depre ssed, andtheve hicle is in danger of
leaving the lane. 286
286
Driving and parking

Fo
rth e de tection of vehicles and other obs tacles,
obser vethe system limits of thefo llowing func-
tions:
R Active Distance Assist DISTRONIC
(/ page 276)
R Active Steering Assist (/ page 284)
R Active Lane Change Assist (/ page 288)A
A
ctiv
ctiv e Lane Chang
e Lane Chang e Assist
e AssistF
F
unction of A
unction of A ctiv
ctive Lane Chang
e Lane Chang e Assist
e Assist
Ac tive Lane Change Assist supports the driver
when changing lanes and is activated byindicat-
ing brie0y.
Ac tive Lane Change Assist is only an aid and not a
substitute foryo ur attention. It is essential that
yo u obser vethe no tes on driving systems and
yo ur responsibility in theve hicle Owner's Manual;
yo u may otherwise failto recognise dangers.
The following conditions must be ful/lled for a
lane change:
R You are on a mo torw ay or high-speed major
ro ad. R
The vehicle speed is between appr oximately
80 km/h and 180 km/h.
R The neighbouring lane is separated bya bro-
ke n lane ma rking.
R Novehicle or obs tacle is de tected in the adja-
cent lane.
R Since the last time theve hicle was star ted,
th e sensors ha vedetected a vehicle at a suita-
ble dis tance behind your vehicle.
R Active Lane Change Assist is selected in the
multimedia system.
R Active Distance Assist DISTRONIC and Active
St eering Assist are activated on mo torw ays.
The system is not available and must be reactiva-
te d in thefo llowing situations:
R Active Distance Assist DISTRONIC and Active
St eering Assist werealready activated before
entering the mo torw ay.
R The system brie0y does not de tect thero ad
yo u are on as a mo torw ay or a mo torw ay-like
road, e.g. on a mo torw ay junction. As soon as
Active Lane Change Assist de tects a
suitable road, you can reactivate it with J,
M orN.
Dr Dr iv
iver displa
er displa y in t
y in the
heAssistance menu
menu 1
Green ar row:lanechange initiated
2 Red ar row: lanechange cancelled 288
288
Driving and parking

R
There is glare, e.g. from oncoming tra1c,
di re ct sunlight or re0ections.
R Due toinsu1cient illumination of thero ad, or
if th eex terior lighting indicates a malfunction.
R The windscreen is dirty, misted up, damaged
or co vered in the vicinity of the camera, e.g.
by a stic ker.
R The sensors are damaged, co vered or dirty.
R No, or se veral, unclear lane markings are pres-
ent for one lane, or the markings change
qu ickl y,forex ample, in a construction area or
junctions.
R The system does not de tect a suitable road,
fo rex ample, in tight bends or shortly aTer a
slip road.
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 There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
R When the tyre pressure is too lo w. Also obser
vethe system limits of Active Steering
Assist and the information on vehicle senso rsand
cameras in theve hicle Owner's Manual.
% 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.
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 the function. A
A
ctiv
ctiv e Br
e Br ak
ake Assist
e Assist F
F
unction of A
unction of A ctiv
ctive Br
e Br ak
ake Assist
e Assist
Ac tive Brake Assist consists of thefo llowing func-
tions:
R Distance warning function
R Collision warning R
Autonomous braking function
R Situation-dependent braking assistance
R Evasive Steering Assist (countr y-speci/c)
Ac tive Brake Assist can help youto minimise the
ri sk of a collision with vehicles, cyclists or pedes-
trians or toreduce the e.ects of such a collision.
If Ac tive Brake Assist has de tected a risk of colli-
sion, a warning tone sounds and theL dis-
ta nce warning lamp lights up. In
theAssistance menu, an insu1cient distance
1 totheve hicle in front is displ ayed in red. If you
fur ther reduce the distance, theve hicle in front is
also highlighted in red. When the system de tects a 290
290
Driving and parking

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 users
oad users
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
av oid 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 straighte ning
of theve hicle. R
Reaction from a speed of appr oximately
20 km/h up toa speed of appr oximately
110 km/h.
The steering support of Evasive Steering Assist
can be cancelled at any time bycounter steering.
Syst Syst em limits
em limits
Fu ll system per form ance is not yetavailable for a
short time aTer switching on theve hicle or aTer
driving o.. As long as the functions are restric ted,
th eÆ warning lamp can also be shown in the
driver's displa y.Depending on the environmental
conditions, it may take afew minutes before full
system per form ance is available.
If Ac tive Brake Assist is deactivated or the func-
tions are restric ted, e.g. due toactivation of
ano ther driving system, theê display message
appears in the driver's displa y.
If th e system is una vailable due todirty or dam-
aged sensors or due toafa ult, or if the functions
are restric ted, theÓ warning lamp appears in
th e driver's displa y. Driving and parking
293
293