2020 MERCEDES-BENZ S-CLASS SALOON LONG brake

R
topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocompl extraf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi st
DISTRONIC may nei ther give warnings nor
inter vene in su chsituations. #
Alw ays obser vethe tra ffic conditions
carefully and react accordin gly. Operating
Active Di stance Assist DIST RONIC
and the variable limi ter
Re quirements:
Ac tive Dis tance Assi stDISTRONIC:
R The electric pa rking 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 sy stem has been
successfully comple ted. R
Snow ch ain mode is not active
(/ page 384).
Va riable limiter
R The variable limiter is selec ted. J
Adopts thestored/de tected speed
± Deacti vatesth eva riable limiter/ Active
Dis tance Assi stDISTRONIC
1 Increases/decreases the speed K
Increases/dec reases the specified dis‐
tan ce
I Switches between the limiter and Active
Dis tance Assi stDISTRONIC #
Tooperate Active Di stance Assist
DISTRO NIC or the variable limi ter: press
th ere spective button with only one finger or
swipe on the control panel.
Switching between the limi ter and Active
Di stance Assist DISTRO NIC #
Press I.
Ac tivating the variable limi ter or Active Dis‐
tance Assi stDISTRONIC #
Toactivate with out astored speed: press
M, NorJ. Active Di stance
Assist DIST RONIC: remo veyour foot from
th e accelerator pedal.
The cur rent vehicle speed is stored and
maintained (Active Dis tance Assi st
DISTRONIC) or limited (variable limiter) by
th eve hicle.
or 232
Driving and parking

#
Toactivate with ast ored speed: press
J. Active Di stance Assist DIST RONIC:
re mo veyour foot from the accelera tor pedal.
The last stored speed is called up and the
ve hicle maintains this speed (Active Dis tance
Assi stDISTRONIC) or does not exceed it (var‐
iable limiter).
If th estored speed has been dele ted, the
cur rent vehicle speed is stored.
% When you swit choff theve hicle, thestored
speed is dele ted. When you activate Active
Dis tance Assi stDISTRONIC, the last speed
st ored forth eva riable limiter is dele ted.
Increasing or reducing the speed #
Toinc rease thestored speed: swipe upwards
from the bottom of control panel 1.
R The stored speed is increased by1 km/h. #
Todecrease thestored speed: swipe down‐
wa rds from theto p of control panel 1.
R The stored speed is decreased by
1 km/h.
or #
Brief lypress MorN onthe lo wer sec‐
tion 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 10km/h.
or #
Accelerate theve hicle tothe desired speed. #
Press Monthe upper section of control
panel 1.
Ad opting the limit speed shown in the driver
display #
Activate Active Dis tance Assi stDISTRONIC
or theva riable limiter. #
Press J.
The limit speed displa yed in the driver display
is adop ted as thestored speed. The vehicle
adapts its speed tothat of theve hicle in front, but only up
tothestored speed, or lim‐
its its speed accordingly.
Pulling away with Active Di stance Assist
DISTRO NIC #
Activate Active Dis tance Assi stDISTRONIC
and remo veyour foot from the brake pedal. #
Press J.
or #
Depress the accelerator pedal briefly and
fi rm ly.
The functions of Active Dis tance Assi st
DISTRONIC continue tobe car ried out.
Re ducing or inc reasing the specified dis‐
tance from theve hicle in front #
Press K.
The Ò display appears under theç
st atus displa y.
The specified dis tance is reduced byone
le ve l.
If th e lo west leve l is already selec ted, the
selection jumps tothe highest le vel. Driving and parking
233

Deactivating
Active Di stance Assist
DISTRO NIC or the variable limi ter &
WARNING Risk of an accident due to
Ac tive Dis tance Assi stDISTRONIC being
acti vewhen you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assi st
DISTRONIC only, theve hicle can rollaw ay. #
Alw ays deactivate Active Dis tance
Assi stDISTRONIC and secure theve hi‐
cle topreve nt it from rolling away
before you lea vethe driver's seat. #
Press ±.
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, Active Dis tance Assi st
DISTRONIC is deacti vated. The variable lim‐
iter is not deactivated.
Fu nction of Active Speed Limit Assi st
If speed limit change between 20 km/h and
13 0 km/h is de tected and the automatic adop‐
tion of speed limits is active, it will be automati‐ cally adop
ted as thestored speed
(/ page 236).
The driven speed is adjus ted when theve hicle is
le ve l with the traf fic sign at the latest. In the
case of signs indicating entry into an urban area,
th e speed is adap ted according tothe speed
permitted within the urban area. The speed limit
display in the driver display is alw ays updated
when theve hicle is le vel with the traf fic sign.
If yo u are driving on German mo torw ays and
th ere is no speed limit, the sy stem uses the
speed stored on an unlimited stre tch of road as
th ere commended speed. If you do not alter the
st ored speed on an unlimited stre tch of road, the
re commended speed is 130 km/h.
If Ac tive Dis tance Assi stDISTRONIC has been
put into passi vemode bypressing the accelera‐
to r pedal, only speed limits which are higher
th an the set speed are adop ted.
The maximum permissible speed does not take
th ero ad condition and cur rent we ather and traf‐
fi c conditions into account. Adjust your speed
accordin gly, when necessar y. Obser
vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219).
Sy stem limits
The sy stem limits of Traf fic Sign Assi stapply to
th e de tection of traf fic signs (/ page 247).
Speed limits bel ow20 km/h are not auto mati‐
cally adop tedby the sy stem as thestored speed.
Te mp orary speed restrictions (e.g. for a cer tain
time or due towe ather conditions) cannot be
proper ly detected bythe sy stem. The maximum
permissible speed applying toave hicle with a
trailer is not de tected bythe sy stem.
Ad just the speed in these situations. &
WARNING Risk of accident due toActive
Speed Limit Assi stadapting theve hicle's
speed
The speed adop tedby Active Speed Limit
Assi stmay be too high or incor rect in some
individual cases, su chas:
R at speed limits below 20 km/h 234
Driving and parking

R
inwe t conditions or in fog
R when towing a trailer #
Ensure that the driven speed complies
with traf fic re gulations. #
Adjust the driving speed tosuit cur rent
traf fic and weather conditions. Fu
nction of route-based speed adaptation
When Active Dis tance Assi stDISTRONIC is acti‐
va ted, theve hicle speed will be adap ted accord‐
ingly tothero ute events ahead. Depending on
th e drive prog ram selected, theve hicle negoti‐
ates a route event ahead in a fuel-s aving, com‐
fo rtable or dynamic manner. When thero ute
eve nt has been passed, theve hicle accelerates
again tothestored speed. The set dis tance to
th eve hicle in front, vehicles de tected ahead and
speed restrictions ahead are take n into account.
Ro ute-based speed adap tation can be acti vated
in the multimedia sy stem (/ page 236).
The following route events are take n into
account:
R Bends R
Roundabouts
R T-junctions
R Turns and exits
R Traf fic jams ahead (only wi thLive Traf fic )
Also, the speed is reduced if the turn signal indi‐
cator tochange lanes is swit ched on and one of
th efo llowing situations is de tected:
R Turning off 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 traf fic lights, as route-based speed adap ta‐
tion does not brake theve hicle toast andstill.
If a cor responding route event is de tected while
ro ute guidance is active, thefirs t speed adjust‐
ment is car ried out automaticall y.Ifth e turn sig‐
nal indicator is switched on, the selected route is
confirmed and fur ther speed adjustment is acti‐
va ted. Speed adap
tation is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched off
before thero ute event and it is therefore
assumed that thero ute event is not releva nt
to the driver.
R Ifth e driver depresses the accelera tor or
brake pedal during the process.
Sy stem limits
Ro ute-based speed adaptation does not take
ri ght of wayre gulations into account. The driver
is responsible for complying with road traf fic
re gulations and driving at a suitable speed.
In dif ficult conditions, the speed selection made
by the sy stem may not alw ays be suitable:
R unclear roads
R road nar rowing
R varying maximum permissible speeds in indi‐
vidual lanes, forex ample at tollst ations
R wetro ad sur faces, snow or ice
R if transport equipment, forex ample a trailer
or bicycle rack , is attached tothe trailer Driving and parking
235

&
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limits of Active Steering Assist
are reached there is no guarantee that the
sy stem will remain active or will keep the
ve hicle in lane. #
Alw ayske ep your hands on thesteering
wheel and obser vethe tra ffic carefull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic conditions. &
WARNING Risk of accident if Active
St eering Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected
st eering inter ventions. #
Steer according totraf fic conditions. Ac
tivating/deactivating Active Steering
Assist
Re quirements:
R ESP ®
is activated, but is not inter vening.
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Driving #
Select ØAct. Steering Asst . Fu
nction of Active Eme rgency Stop Assist Ac
tive Emergency Stop Assist uses touch sen‐
sors tomonitor whe ther the driver holds the
st eering wheel and initiates an emer gency stop if
necessar y.
If Ac tive Steering Assist is deactivated, the
accelerator and brake pedal are monitored as
we ll as thesteering wheel. A warning is issued
when thesteering wheel is not being held or
when a pedal is not depressed, and theve hicle
is in danger of leaving the lane. If
th e sy stem de tects that the driver has not
st eered theve hicle for a considerable period of
time or has remo vedth eir hands from thesteer‐
ing wheel, visual warning 1is issued. If the
driver still does not steer theve hicle, or gives no
confirmation tothe sy stem, a warning tone
sounds in addition tothe visual warning mes‐
sage.
Also obser vethe instructions on the conta ct
de tection of Active Steering Assist
(/ page 237). Driving and parking
239

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

play appears along with gr
eyarrow s in the driver
displa y.
If no vehicle or obs tacle is de tected in the adja‐
cent lane and a lane change is permit ted, the
lane change begins af terth e driver has indicated
brief ly. The lane change is shown tothe driver
with a flashing greenarro w next tothe±
st eering wheel symbol. Green ar row 1 is dis‐
pla yed in the appropriate adjacent lane in the
Assistance menu inthe driver displa y.The Lane
change to the left message,forex ample, also
appears.
Ac tive Lange Change Assi stcan be cancelled in
va rious situations, including thefo llowing:
R Change in the sur rounding conditions (e.g.
de tected obs tacle).
R The driver remo vesth eir hands from the
st eering wheel.
R The driver steers with too much forc e or in
th e opposite direction.
R The driver mo vesth e turn signal indicator in
th e opposite direction. R
Active Dis tance Assi stDISTRONIC or Active
St eering Assist is deactivated.
R The vehicle cannot make the lane change as
planned.
Cancellation of Active Lane Change Assi stis dis‐
pla yed as follo ws:
R The ar row in the selected direction of tr avel
turns red.
R A cor responding message appears onthe
driver displa y.
R In cer tain circums tances a warning tone
sounds. &
WARNING Risk of accident when chang‐
ing lane toan occupied adjacent lane
Lane Chan geAssi stcannot al ways clear ly
de tect if the adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free. #
Before changing lanes, make sure that
th e neighbouring lane is free and there
is no danger to otherroad users. #
Monitor the lane change. &
WARNING Risk of accident if Lane
Change Assi stunexpectedly stops func‐
tioning
If th e sy stem limitations for Lane Change
Assist ha vebeen reached, there is no guar‐
antee that the sy stem will remain active.
Lane Change Assist cannot then assist you
by applying steering torque. #
Alw ays monitor the lane change and
ke ep your hands on thesteering wheel.
Obser vethe tra ffic conditions and steer
and/or brake if necessar y. Sy
stem limits
The sy stem limitations of Active Steering Assist
apply toActive Lane Change Assi st
( / page 237).
The sy stem may also be impaired or may not
function in thefo llowing situations:
R The sensors are damaged, co vered or dirty
(/ page 220). 242
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