2021 MERCEDES-BENZ S-CLASS SALOON LONG warning

The system may be impai
red or may not function,
particular lyin thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is glare,
in direct sunlight or in greatly varying light
conditions.
R Ifth e sensors are dirty, misted up, damaged or
co vered. (/ page 267)
R Ifth e sensors are impaired due tointer fere nce
from other radar sources, e.g. strong radar
re 0ections in multi-s tore y car par ks.
R If a loss of tyre pressure or a defecti vetyre
has been de tected and displa yed.
R In complex tra1c situations where objects
cannot alw ays be clear lyidenti/ed.
R If pedestrians, cyclists or vehicles mo ve
qu ickly into the sensor de tection range.
R Ifro ad users are hidden by other objects or
are located close toother objects.
R Ifth e typical outline of a pedestrian or cyclist
cannot be distinguished from the backg round.
R If a pedestrian or cyclist is not de tected as
such, e.g. due tospecial clo thing or other
objects. R
Ifth e driver's seat belt is not fastened.
R On bends wi tha tight radius.
Se Se tting A
tting A ctiv
ctive Br
e Br ak
ake Assist
e Assist
R
R eq
equir uir ements:
ements:
R The vehicle is switched on.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Avoid collision 5
Active Brake Assist #
Select the desired setting.
Deactiv
Deactiv ating A
ating Activ
ctive Br
e Br ak
ake Assist
e Assist
% It is recommended that you alw ays lea ve
Ac tive Brake Assist acti vated. #
Select Off.
The distance warning function, the autono-
mous braking function and Evasive Steering
Assist are deactivated.
The system is switched on again the next time
th eve hicle is star ted.
% IfAc tive Brake Assist is deactivated, theæ
symbol appears in the status bar of the driv-
er's displa y. T T
r
ra1c
a1c Sign Assist
Sign Assist F
F
unction of
unction of Tr
Tra1c
a1c Sign Assist
Sign Assist
% This function is available on demand
(/ page 26).
Tr a1c Sign Assist de tects tra1c signs with the
multifunction camera and compares this with
information in the digital navigation map. It assists
yo uby displaying de tected speed limits and over-
ta king restrictions in the driver's display and in
th e head-up displa y.The system can issue a warn-
ing when youex ceed the maximum permissible
speed.
In some countries, the system can pr ovide you
with fu rther functions and can warnyou when you
are approaching pedestrian crossings or when
yo u are about todrive past stop signs or red lights
unintentionall y.
The camera also de tects and anal yses tra1c
signs with a restriction indicated byan additional
sign (e.g. when wet).
Tr a1c Sign Assist portr ays only selected signs in
th e driver's displa y.Ac tual tra1c signs and speed
limits ha vepriority over tra1c signs and speed
limits shown in the driver's displa y.294 294
Driving and parking

Tr
a1c Sign Assist can de tect following additional
signs 3and, if necessar y,anal yseth ere leva nce
of there strictions using other vehicle senso rs:
R when wet
R slippe ryroad sur faces
R infog
R temp orary restrictions
R exits
R restrictions for car/trailer combinations
Tr a1c Sign Assist also uses data from the digital
street map in the navigation system. When you
lea veor enter a municipality or change roads, on
a mo torw ay ex it or slip road forex ample, or aTer
yo u turn at a junction, the display in the driver's
display can thus be updated without a tra1c sign
having been de tected.
If Tra1c Sign Assist cann otdeterm ine the cur-
re ntly applicable maximum permissible speed
(e.g. due tomissing signs), thefo llowing display
appears in the driver's displa y: Tr
a1c Sign Assist is not available in all countries.
If th eve hicle is in a country where Tra1c Sign
Assist is not suppor ted, this is displa yed continu-
ousl y.
% Also obser vethe information on display mes-
sages in Tra1c Sign Assist (/ page 495).
W
W ar
ar ning when t
ning when t he maximum per
he maximum per missible speed is
missible speed is
ex
ex ceeded
ceeded
The system can warnyou if you unintentionally
ex ceed the maximum permissible speed. Todo
th is, you can specify in the multimedia system by
how much the maximum permissible speed can
be exceeded before a warning is issued. You can
set thewa rning tovisual only (the tra1c sign
0ashes thre e times in the driver's display) or vis-
ual and acoustic, including a warning tone.
A
A dditional functions of
dditional functions of Tr
Tra1c
a1c Sign Assis
Sign Assis t (coun-
t (coun-
try
try -speci/c)
-speci/c)
W
W ar
ar ning f
ning f or no-entr
or no-entr y signs:
y signs:Tra1c Sign Assist can
wa rnyou if you drive the wrong way down a sec- tion of
road, forex ample on mo torw ay slip roads
or one-w aystreets.
W
W ar
ar ning at pedes
ning at pedestr trian cr
ian crossings: ossings: ifyo u approach
pedestrian crossings, pr ovided that pedestrians
are in the danger zone or are moving towa rds it,
Tr a1c Sign Assist can warnyou up toa speed of
appr oximately 70 km/h.
W
W ar
ar ning at st
ning at st op signs:
op signs: Tra1c Sign Assist can warn
yo u up toa speed of appr oximately 70 km/h if
yo u are about todrive past a stop sign uninten-
tionall y.Fo rth is to be possible, the signs must be
clear, forex ample if the system de tects more than
one stop sign, or a stop sign can be con/rmed
using the digital navigation map. No warning can
be issued if se veral di.erent signs are de tected.
W W ar
ar ning at r
ning at r ed lights:
ed lights: Tra1c Sign Assist can warn
yo u up toa speed of appr oximately 70 km/h if
yo u are about todrive thro ugh a red light uninten-
tionall y.
The following conditions must be ful/lled:
R Several tra1c lights ha vebeen de tected.
R All tra1c lights de tected are red. 296
296
Driving and parking

R
Atleast one of there d tra1c lights de tected is
on the front passenger side beside theve hi-
cle's own lane.
R The tra1c lights are in thefo llowing sequence
(from topto bottom): red, yello w, green.
% Ifth e function is available, you can activate or
deactivate thewa rnings at pedestrian cross-
ings, stop signs and red lights in theTra1c
Sign Assist menu under Further warnings
(/ page 297).
Syst
Syst em limits
em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R If visibility is poor, e.g. due toinsu1cient illu-
mination of thero ad, highly variable shade
conditions, rain, sno w,fog, swirling dust 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
If tra1c signs are di1cult todetect, e.g.
because they are dirty, co vered, faded, co v-
ered with ice, damaged, badly positioned,
poor lylit or twisted.
R Active tra1c signs with LED displa ysmay not
be de tected cor rectly or at all due to technical
fa ctors, such as transmission frequency.
R Ifth e information on the navigation system's
digital map is incor rect, incomple teor out of
date.
R If signs or thero ad la yout is ambiguous, e.g.
tra1c signs in roadwor ks, at exits and ramp s,
in neighbou ring lanes or parallel roads.
R If signs do not conform tothe standard.
R If signs or road la youts are speci/c tothe
count ryand deviate from thero ute guidance
in the navigation system, e.g. at or be yond
construction sites.
R ATer sharp turns and tight bends, when tra1c
signs are outside the camera's /eld of vision.
R Ifyo uove rtake vehicles with tra1c signs
which are a1xed or attached tothem. R
Ifyo u are using transport equipment secured
to theve hicle with a trailer coupling, such as a
bicycle rack ,re strictions for car/trailer combi-
nations may be considered valid if applicable.
Se Se tting
tting Tr
Tra1c
a1c Sign Assist
Sign Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Assistance 5
Traffic Sign Assist
A
A ctiv
ctiv ating or deactiv
ating or deactiv ating t
ating the speed w
he speed w ar
arning
ning #
Activate or deactivate Speed limit warning .
A
A ctiv
ctiv ating or deactiv
ating or deactiv ating furt
ating further functions of Tr
her functions of Traf-
af-
f
f ic Sign Assist
ic Sign Assist #
Switch Further warnings orAdditional warn-
ing tone on or o..
Se
Se tting t
tting t he w
he war
arning t
ning t hr
hreshold
eshold
This value de term ines the speed at which a warn-
ing is issued when exceeded. #
Set the desired speed under Warning thresh-
old. Driving and parking
297
297

If a
vehicle is de tected in the monitoring range
and you switch on the turn signal indicator in the
cor responding direction, a warning tone sounds
twice and thewa rning lamp 0ashes red in the
re specti veoutside mir ror.Re dra dar waves2 are
displa yed next toyour vehicle in the Assistance
gr aphic.
If th e turn signal indicator remains on, the display
in the outside mir ror 0ashes for all other de tected
ve hicles, but no furt herwarning tone sounds. If
yo uov ertake ave hicle quickl y,no warning is
given.
% V Vehicles wit
ehicles wit h activ
h active ambient lighting:
e ambient lighting: ifWarn-
ing assistance is activated,theAc tive Blind
Spot Assist warning is also accompanied by
ambient lighting (/ page 179).
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 266). &
W
WARNING
ARNING Risk of accident despite Active
Blind Spot Assist
Ac tive Blind Spot Assist does not react tothe
fo llowing:
R ifyo uov ertake ave hicle too closely so that
it is in the blind spot area
R ifve hicles tr avelling at a much faster
speed approa chand then ove rtake
Ac tive Blind Spot Assist may not give warnings
or inter vene in such situations. #
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 Active
Blind Spot Assist and can warnvehicle occupants
attem pting tolea vethe stationary 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
and thewa rning lamps in the cor responding out-
side mir ror 0ash red.
V
V ehicles wit
ehicles wit h MBUX Int
h MBUX Int er
erior Assist
ior Assist ant
ant::th e visual
wa rning begins as soon as the hand of a vehicle
occupant mo ves in tothe area of the door. Driving and parking
299
299

%
V
Vehicles wit
ehicles wit h ambient lighting or activ
h ambient lighting or activ e ambi-
e ambi-
ent lighting:
ent lighting: theWarning assistance ofthe
ambient lighting can be activated and deacti-
va ted (/ page 179).
% 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 Active
Blind Spot Assist is activa ted and up toa maxi-
mum of thre e minutes aTer the ignition has been
switched o.. The exitwa rning is no longer availa-
ble once thewa rning lamp in the outside mir ror
0ashes thre e 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
Ac tive Blind Spot Assist may be limited in thefo l-
lowing 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.
Ac tive Blind Spot Assist is not operational when
re ve rsege ar is engaged.
Ac tive Blind Spot Assist is not operational if trans-
port equipment, forex ample a trailer or bicycle
ra ck , is attached tothe trailer hitch and the elec-
trical 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
If Ac tive Blind Spot Assist de tects a risk of a side
impact in the monitoring range, a cours e-correct-
ing brake application is car ried out. This is
designed tohelp youavo id a collision.
The course-cor recting brake application is availa-
ble in the speed range between appro ximately
30 km/h and 200 km/h. &
W
WARNING
ARNING Risk of accident despi tebrake
application of Active Blind Spot Assist
A course-cor recting brake application cann ot
alw ays pr event a collision. #
Always steer, brake or accelerate your-
self, especially if Active Blind Spot Assist 300
300
Driving and parking

wa
rnsyo u or makes a course-cor recting
brake application. #
Always maintain a safe dis tance at the
sides. &
W
WARNING
ARNING Risk of accident despite Active
Blind Spot Assist
Ac tive Blind Spot Assist does not react in the
fo llowing situations:
R Ifyo uove rtake vehicles at a high speed.
R Ifve hicles approach and overtake you at a
gr eatly di.erent speed.
Ac tive Blind Spot Assist may not give warnings
or inter vene in such situations. #
Always pay careful attention tothe tra1c
situation and maintain a safe distance at
th e side of theve hicle. If a course-co
rrecting brake application occurs,
th ere dwa rning lamp 0ashes in the outside mir ror
and a warning tone sounds. In addition, a display
1 indicating the danger of a side collision
appears in the driver's displa y.
In rare cases, the system may make an inappro-
priate brake application. This brake application
may be inter rupted at any time if you steer slightly
in the opposite direction or accelerate. Syst Syst
em limits
em limits
Either a course-cor recting brake application
appropriate tothe driving situation, or none at all,
may occur especially in thefo llowing situations:
R Vehicles or obs tacles, e.g. crash bar riers, are
located on bo thsides of your vehicle.
R Ave hicle approaches too closely on the side.
R You ha veadop ted a sporty driving style with
high cornering speeds.
R You brake or accelerate signi/cant ly.
R A driving sa fety system inter venes, e.g. ESP ®
or Active Brake Assist.
R ESP ®
is deactivated.
R A loss of tyre pressure or a defective tyre is
detected.
R 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. Driving and parking
301 301

ð
Gr
Green:
een: Active Lane Keeping Assist is acti-
va ted and operating. If the system is
operational on only one side, the lane
marking is shown in green on the cor re-
sponding side.
ð R
Red:
ed: Active Lane Keeping Assist has gui-
ded you back into your lane with a course-
cor recting steering inter vention. The sta-
tus display will 0ash if there is also a hap-
tic warning in the steering wheel. The lane
marking is shown in red only on the side
fo r which there is a warning.
V
V ehicles wit
ehicles wit hout Dr
hout Driving Assist
iving Assist ance P
ance Pack-
ac k-
ag
ag e:
e: if bo thlane markings are simultane-
ously shown in red in the status displa y,
Ac tive Lane Keeping Assist has initiated an
emer gency stop (/ page 286). A
A
ctiv
ctiv e Lane Chang
e Lane Chang e Assis
e Assist displat displa y in t
y in the "Assis-
he "Assis-
t
t ance" menu
ance" menu If
th e front wheel of theve hicle drives over a
de tected lane marking, this will be highlighted red
in theAssistance menu inthe driver's displa y.
% V
Vehicles wit
ehicles wit h activ
h active ambient lighting:
e ambient lighting: ifWarn-
ing assistance is activated,theAc tive Lane
Ke eping Assist warning is also accompanied
by ambient lighting (/ page 179). Syst
Syst
em limits
em limits
In thefo llowing situations, no lane-cor recting
steering inter vention occurs but rather a warning
in the steering wheel, depending on the situation:
R You clear lyand actively steer, brake or accel-
erate.
R If a driving saf ety sy stem inter venes, such as
ESP ®
,Ac tive Brake Assist or Active Blind Spot
Assist.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of acceler-
ation.
R When ESP ®
is deacti vated.
R If transport equipment, forex ample a trailer or
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor-
re ctly es tablished.
R If a loss of tyre pressure or a defective tyre
has been de tected and displa yed. Driving and parking
303 303

%
This function must be activated in vehicles
without Driving Assis tance Package, so that
Emer gency Stop Assist is fully available.
Fu rther information on Emer gency Stop Assist
(/ page 286) AIRMA
AIRMA
TIC
TIC F
F
unction of AIRMA
unction of AIRMA TIC
TIC
AIRMATIC is an air suspension system with varia-
ble damping for impr oved driving comfort. The all-
ro und le vel control system ensures the best possi-
ble suspension and constant ground clearance,
ev en with a laden vehicle. When driving at speed,
th eve hicle is lo wered automatically toimpr ove
driving saf ety and toreduce fuel consum ption.
Yo u also ha vethe option of manually adjusting the
ve hicle le vel.
AIRMATIC includes thefo llowing components and
functions:
R air suspension with automatic all-round le vel
cont rol
R speed-dependent lo wering toreduce fuel con-
sum ption R
increased vehicle le velfo rgr eater ground
clearance, selected via the multimedia system
R ADS PLUS (Adaptive Damping System with
constant damping forc e adjustment)
Suspension se Suspension se tting depending on t
tting depending on t he dr
he driv
ive pr
e pr o-
o-
gr
gr am
am
Drive prog ram C andB:
R The suspension setting is /rmer.
R The vehicle is set tolow le vel -1.
R The vehicle is lo weredto low le vel -2 when
driving at speeds abo ve120 km/h.
R When driving at speeds below 80 km/h, the
ve hicle is raised again tolow le vel -1.
Drive prog ram A and;:
R The suspension setting is comfor table.
R The vehicle is set tothe normal le vel.
R The vehicle is lo weredto low le vel -1 when
driving at speeds abo ve120 km/h.
R The vehicle is lo weredto low le vel -2 when
driving at speeds abo ve160 km/h. R
When driving at speeds below 120 km/h, the
ve hicle is raised again tolow le vel -1.
R When driving at speeds below 80 km/h, the
ve hicle is raised again tothe normal le vel.
% Oper
Oper ation wit
ation wit h a tr
h a trailer or bicy
ailer or bicy cle r
cle rac
ack:
k: if
transport equipment, such as a trailer or a
bicycle rack , is attached tothe trailer hitch
and the electrical connection has been cor-
re ctly es tablished, theve hicle remains at nor-
mal le vel ir respecti veof speed or the drive
prog ram selected.
Se Se tting t
tting t he v
he vehicle lev
ehicle lev el
el &
W
WARNING
ARNING Risk of accident because vehi-
cle le vel is too high
Driving characteristics may be impaired.
The vehicle can driT outwards, forex ample,
when steering or cornering. #
Choose a vehicle le vel which is suited to
th e driving style and thero ad sur face
conditions. Driving and parking
305
305