2020 MERCEDES-BENZ S-CLASS SALOON LONG light

th
e driver still does not steer theve hicle, or
gives no confirmation tothe sy stem, a warning
to ne sounds in addition tothe visual warning
message.
If th e driver does not react tothis wa rning for a
considerable period, an emergency stop is initi‐
ated (/ page 239).
The warning is not issued or is stopped as soon
as the sy stem de tects that the driver has
to uched thesteering wheel.
To uch de tection may be limited or inoperati vein
th efo llowing situations:
R The driver is wearing glov es.
R There is a steering wheel co ver on thesteer‐
ing wheel.
If Ac tive Steering Assist de tects that a sy stem
limit has been reached, a visual warning is
issued and a warning tone sounds.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219). Sy
stem limits
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not su fficient tokeep the
ve hicle in the lane.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R The reis poor visibilit y,e.g. due tosno w,rain,
fo g, heavy spr ay,greatly varying light condi‐
tions or strong shado wsonthe car riag ewa y.
R There is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections.
R Insuf ficient road illumination.
R The windsc reen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by ast icke r.
R No, or se veral, unclear lane markings are
present for one lane, or the markings change
qu ickl y,forex ample, in a con stru ction area
or junctions.
R The lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w. R
Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R The road is nar rowand winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
R If transport equipment, forex ample a trailer
or bicycle rack , is attached tothe trailer
hitch and the electrical connection has been
cor rectly es tablished.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
R Onvery tight bends and when turning.
R When crossing junctions.
R Atroundabouts or tollst ations.
R When actively changing lane without swit ch‐
ing on the turn signal indicator.
R When the tyre pressure is too lo w. 238
Driving and parking

Ac
tive Emergency Stop Assist issues thefo llow‐
ing warnings in order:
R Display message 1appears in the driver
displa y.
R In addition todisplay 1awa rning tone
sounds.
R The Beginning emergency stop message
appears in the driver displa y,a continuous
wa rning tone sounds, theve hicle no longer
accelerates, and there is a slight, repeated
te nsioning of the seat belt.
R The vehicle speed is reduced in increments
until it is at a standstill. Sharp brake impul‐
ses are also produced.
Depending on the count ry, a lane change tothe
adjacent right-hand lane is car ried out, if possi‐
ble.
% It is only possible tochange across one lane
and on ly intotheright-hand lane, and not
onto the hard shoulder.
Depending on the count ry,th e hazard warning
lights are switched on when automatic braking is
initiated. When
theve hicle is stationar y,thefo llowing
actions are car ried out:
R The vehicle is secured with the electric park‐
ing brake.
R Active Dis tance Assi stDISTRONIC is ended
R The vehicle is unloc ked.
R If possible, an emer gency call is placed to
th e Mercedes-Benz emer gency call centre
Before au tomatic braking is initia ted, you can
cancel Active Emergency Stop Assist bysteer‐
ing.
Yo u can cancel the inter vention byActive Emer‐
ge ncy Stop Assist af ter auto matic braking is ini‐
tiated byone of thefo llowing actions:
R Accelerating or braking: the emer gency stop
is cancelled, but thewa rning message, warn‐
ing tone and po werst eering remain active
R Steering: po wer-assis tedsteering is cancel‐
led, thewa rning message and warning tone
re main active and theve hicle continues tobe
braked %
Active Emergency Stop Assist can initiate an
emer gency stop a maximum of thre e times
within one ignition cycle. Af terth is Ac tive
St eering Assist and Active Emergency Stop
Assist are deactivated forth at ignition cycle.
Sy stem limits
If Ac tive Lane Keeping Assist does not de tect
lane markings, Active Emergency Stop Assist is
not active.
Fo rth e de tection of vehicles and other obs ta‐
cles, obser vethe sy stem limits of thefo llowing
functions:
R Active Dis tance Assi stDISTRONIC
(/ page 229)
R Active Steering Assist (/ page 237)
R Active Lane Change Assi st (/ page 240) Ac
tive Lane Change Assi st Fu
nction of Active Lane Change Assi st
Ac tive Lane Change Assi stsupports the driver
when changing lanes and is activated byindicat‐
ing briefly. 240
Driving and pa rking

R
The exterior lighting sho wsa defect.
R The sy stem does not de tect a suitable road,
fo rex ample, in tight bends or shortly af ter a
slip road.
R The vehicle is on a construction site.
% The Active Lane Change Assi stsensors
adjust automatically while a cer tain dis tance
is being driven af terth eve hicle has been
delivered. Active Lane Change Assi stis
una vailable or only partially available during
th is teach-in process, and no ar rows are dis‐
pla yed next totheØ Active Steering
Assist symbol.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219).
Selecting Active Lane Change Assi st
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Driving #
Select the function. Ac
tive Brake Assi st Fu
nction of Active Brake Assi st
Ac tive Brake Assi stconsi sts of thefo llowing
functions:
R Distance warning function
R Autonomous braking function
R Situation-dependent braking assi stance
R Evasive Steering Assist (count ry-specific)
Ac tive Brake Assi stcan help youto minimise the
ri sk of a collision with vehicles, cyclists or
pedestrians or toreduce the ef fects of su ch a
collision.
If Ac tive Brake Assi sthas de tected a risk of colli‐
sion, a warning tone sounds and theL dis‐
ta nce warning lamp lights up. In
theAssistance menu, an insuf ficient di stance
1 totheve hicle in front is displa yed in red. If
yo u fur ther reduce the dis tance, theve hicle in
front is also highlighted in red. When the sy stem
de tects a risk of collision, redra dar waves2
appear in front of theve hicle.
Ve hicles with PRE-SAFE ®
:depending on the
countr y,an additional haptic warning occurs in
th efo rm of slight, repeated tensioning of the
seat belt.
% Vehicles with active ambient lighting: if
Warning assistance is activated,theAc tive
Brake Assi stwa rning is also accompanied by
ambient lighting (/ page162). Driving and pa
rking 243

If
yo u do not react tothewa rning, autonomous
braking can be initiated in critical situations.
In particular lycritical situations, Active Brake
Assi stcan also initia teautonomous braking
direct ly. Inthis case, thewa rning lamp and warn‐
ing tone occur simultaneously wi th the braking
application.
If yo u apply the brake yourself in a critical situa‐
tion or apply the brake during autonomous brak‐
ing, situation-dependent braking assis tance
occu rs. The brake pressure increases up tomax‐
imum full-s top braking if necessar y.If autonomous braking or situation-dependent
braking assis
tance has occu rred, pop up 1appears in
the driver display and then automati‐
cally goes out af ter a short time.
If th e autonomous braking function or the situa‐
tion-dependent braking assis tance is trig gered,
additional pr eventive measu resfo r occupant
pr otection (PRE-SAFE ®
) may also be initiated. &
WARNING Risk of accident due tolimi‐
te d de tection per form ance of Active
Brake Assi st
Ac tive Brake Assi stcannot al ways clear ly
identify objects and complex traf fic situa‐
tions.
Ac tive Brake Assi stis only an aid. The driver
is responsible for maintaining a suf ficiently
safe di stance totheve hicle in front, vehicle
speed and for braking in good time. #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Active Brake
Assi stalone. #
Be prepared tobrake or swer veif nec‐
essar y. %
IfAc tive Brake Assi stis deactivated, æ
appears in the driver displa y.
If th e sy stem is una vailable or the functions
are restricted, Ä appea rs.
Also obser vethe sy stem limits of Active Brake
Assi st.
The individual subfunctions are available in
th efo llowing speed ranges:
The dis tance warning function issues a warning
in thefo llowing situations:
R From appr oximately 30 km/h, if over se veral
seconds the dis tance maintained totheve hi‐
cle tr avelling in front is insuf ficient forthe
driven speed, theL distance warning
lamp lights up in the driver's displa y.
R From appr oximately 7 km/h, if your vehicle
is critically close toave hicle, cyclist or
pedestrian, you will hear an intermit tent
wa rning tone and theL distance warning
lamp lights up in the driver's displa y.
Ve hicles with PRE-SAFE ®
:depending on
th e count ry, an additional haptic warning 244
Driving and pa rking

occurs in
thefo rm of slight, repeated ten‐
sioning of the seat belt.
If possible, brake immediately or manoeuvre to
avo idthe obs tacle.
Di stance warning function
The dis tance warning function can assist youby
means of an intermittent warning tone and a
wa rning lamp:
R Atspeeds up toappr oximately 250 km/h
when approaching vehicles ahead.
R Atspeeds up toappr oximately 120 km/h
when app roaching crossing vehicles, pedes‐
trians and cyclists.
R Atspeeds up toappr oximately 100 km/h
when app roaching stationary vehicles.
R Atspeeds up toappr oximately 80 km/h
when approaching cyclists ahead.
R Atspeeds up toappr oximately 70 km/h
when approaching stationary pedestrians
and cyclists. Au
tonomous braking function
The autonomous braking function can inter vene
from speeds of appr oximately 7 km/h:
R Atspeeds up toappr oximately 250 km/h
when approaching vehicles ahead.
R Atspeeds up toappr oximately 120 km/h
when app roaching crossing vehicles, pedes‐
trians and cyclists.
R Atspeeds up toappr oximately 100 km/h
when app roaching stationary vehicles.
R Atspeeds up toappr oximately 80 km/h
when approaching cyclists ahead.
R Atspeeds up toappr oximately 70 km/h
when approaching stationary pedestrians
and cyclists.
Situation-dependent braking assistance
Situation-dependent braking assis tance can
inter vene from speeds of appr oximately 7 km/h:
R Atspeeds up toappr oximately 250 km/h
when approaching vehicles ahead. R
Atspeeds up toappr oximately 120 km/h
when app roaching crossing vehicles, pedes‐
trians and cyclists.
R Atspeeds up toappr oximately 100 km/h
when app roaching stationary vehicles.
R Atspeeds up toappr oximately 80 km/h
when approaching cyclists ahead.
R Atspeeds up toappr oximately 70 km/h
when approaching stationary pedestrians
and cyclists.
Cancelling a brake application of Active
Brake Assi st
Yo u can cancel a brake application of Active
Brake Assi stat any time by:
R Fully depressing the accelerator pedal or
with kickdown.
R Releasing the brake pedal.
Ac tive Brake Assi stmay cancel the brake appli‐
cation when one of thefo llowing conditions is
fulfilled:
R You manoeuv retoavo idthe obs tacle.
R The reis no longer a risk of collision. Driving and parking
245

R
An ob stacle is no lon ger de tected in front of
yo ur vehicle.
Re action tooncoming road users
Ac tive Brake Assi stcan also react todetected
oncoming road users:
R Reaction up tospeeds of appr oximately
10 0 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
Evasi veSte ering Assist &
WARNING Risk of accident despi teEva‐
si ve Steering Assist
Evasive Steering Assist cann otalw aysre cog‐
nise objects or compl extraf fic situations
clear ly.
Moreo ver,th esteering support pr ovided by
Evasive Steering Assist is not suf ficient to
avo id a collision. #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Ev asive
St eering Assist alone. #
Be prepared tobrake or swer veif nec‐
essar y. #
End the support byactively steering in
non-critical situations. #
Drive at an appropriate speed if there
are pedestrians close tothe path of
yo ur vehicle. Evasive
Steering Assist has thefo llowing charac‐
te rist ics:
R Detection of pedestrians, cycli sts and vehi‐
cles.
R Assis tance thro ugh po wer-assis tedsteering if
it de tects a swerving manoeuvre.
R Activation byan abrupt steering mo vement
during a swerving manoeuvre.
R Assis tance du ring swerving and stra ightening
of theve hicle. R
Reaction from a speed of appr oximately
20 km/h up toa speed of appr oximately
11 0 km/h.
The steering support of Evasive Steering Assist
can be cancelled at any time bycounter steer‐
ing.
Sy stem limits
Fu ll sy stem per form ance is not available for a
fe w seconds af ter switching on the ignition or
af te r driving off.
If th e sy stem is una vailable or the functions are
re stricted, theÄ warning lamp appears in the
driver's displa y.
The sy stem may be impaired or may not func‐
tion, particular lyin thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R Ifth e sensors are dirty, mis ted up, damaged
or co vered. (/ page 220)
R Ifth e sensors are impaired due tointer fer‐
ence from other radar sources, e.g. strong
ra dar reflections in multi-s torey car par ks. 246
Driving and pa rking

R
If a loss of tyre pressure or a defective tyre
has been de tected and displ ayed.
R In complex traf fic situations whe reobjects
cannot always be clearly identified.
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 to other objects.
R Ifth e typical outline of a pedestrian or cyclist
cann otbe distinguished from the back‐
ground.
R If a pedestrian or cyclist is not de tected as
su ch , e.g. due tospecial clo thing or other
objects.
R Ifth e driver's seat belt is not fastened.
R On bends with a tight radius.
% The Active Brake Assi stsensors adjust auto‐
matically while a cer tain dis tance is being
driven af terth eve hicle has been delivered.
Ac tive Brake Assi stis una vailable or only
partially available during thete ach-in proc‐
ess. Setting
Active Brake Assi st
Re quirements:
R The ignition is switched on.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Avoid collision 5
Active Brake Assist #
Select the desired setting.
The setting is retained when the engine is
next star ted.
Deactivating Active Brake Assi st
% It is recommended that you alw ays lea ve
Ac tive Brake Assi stactivated. #
Select Off.
The dis tance warning function, the autono‐
mous braking function and the Evasive Steer‐
ing Assist are deactivated.
When the engine is next star ted, the medium
setting is automatically selected.
% IfAc tive Brake Assi stis deactivated, the
æ symbol appears inthest atus bar of the
multifunction displa y. Tr
af fic Sign Assist Fu
nction of Traf fic Sign Assist
Tr af fic Sign Assi stdetects traf fic signs wi th the
multifunction camera and compares this with
information in the digital navigation map. It
assists youby displaying de tected speed limits
and overtaking restrictions in the driver display
and in the head-up displa y.The sy stem can issue
a wa rning when youexc eed the maximum per‐
missible speed.
In some count ries, the sy stem can pr ovide you
with fur ther functions and can warnyou when
yo u are approaching pedestrian crossings or
when you are about todrive past stop signs or
re d lights unintentionall y.
The camera also de tects and ana lyses traf fic
signs with a restriction indicated byan additional
sign (e.g. when wet).
Tr af fic Sign Assi stonly visualises selected signs
in the driver displa y.Ac tual traf fic signs and
speed limits ha vepriority over traf fic signs and
speed limits shown in the driver displa y. Driving and pa
rking 247

Tr
af fic Sign Assi stcan de tect following addi‐
tional signs 3and, if necessar y,anal ysethe
re leva nce of there strictions using other vehicle
sensors:
R inwe t conditions
R on slippe ryroad sur faces
R infog
R temp orary restrictions
R exits
R limits for car/trailer combinations
Tr af fic Sign Assi stalso uses data from the digital
st re et map in the navigation sy stem. Therefore,
when you lea veor enter a municipality or change
ro ads, on a mo torw ay ex it or slip road forex am‐
ple, or af teryo u turn at a junction, the display in
th e driver display can be updated without a traf‐
fi c sign having been de tected.
If Traf fic Sign Assi stcannot de term ine the cur‐
re ntly applicable maximum pe rmissible speed
(e.g. due tomissing signs), thefo llowing display
appears in the driver display: Tr
af fic Sign Assi stis not available in all coun‐
tries. If theve hicle is in a country where Traf fic
Sign Assi stis not suppor ted, this is displa yed
continuously.
% Also obser vethe information on display mes‐
sages in Traf fic Sign Assi st (/ page 492).
Wa rning when the maximum permissible
speed is exceeded
The sy stem can warnyou if you unin tentionally
exc eed the maximum permissible speed. Todo
th is, you can specify in the multimedia sy stem
by how much the maximum permissible speed
can be exceeded before a warning is issued. Yo u
can set thewa rning tovisual only (the traf fic
sign flashes thre e times in the driver display) or
visual and acoustic, including a warning tone.
Ad ditional functions of Traf fic Sign Assist
(count ry-specific)
Wa rning for no-entry signs: Traf fic Sign Assi st
can warnyou if you drive the wrong way down a section of
road, forex ample on mo torw ay slip
ro ads or one-w aystre ets.
Wa rning at pedestrian crossings: ifyou
approach pedestrian crossings, pr ovided that
pedestrians are in the danger zone or are moving
to wa rds it, Traf fic Sign Assi stcan warnyou up to
a speed of appr oximately 70 km/h.
Wa rning at stop signs: Traf fic Sign Assi stcan
wa rnyou up toa speed of appr oximately
70 km/h if you are about todrive past a stop
sign unintentionall y.Fo rth is to be possible, the
signs must be clear, forex ample if the sy stem
de tects more than one stop sign, or a stop sign
can be confirmed using the digital navigation
map. Nowarning can be issued if se veral dif fer‐
ent signs are de tected.
Wa rning at red lights: Traf fic Sign Assi stcan
wa rnyou up toa speed of appr oximately
70 km/h if you are about todrive thro ugh a red
light unin tentional ly.
The following conditions must be fulfilled:
R Several traf fic lights ha vebeen de tected.
R All traf fic lights de tected are red. Driving and parking
249