2018 MERCEDES-BENZ S-CLASS SEDAN brake light

Active Di stance Assist DI STRONIC
Function of Active Di stance Assist
DI STRO NIC
Active Dis tance Assist DISTRONIC maintains the
set speed on free-flowing roads. If vehicles
ahead are de tected, the set dis tance is main‐
ta ined, if necessary until theve hicle comes toa
halt. The vehicle accelerates or brakes depend‐
ing on the dis tance totheve hicle in front and
th e set speed. Speed (in thera nge between
15 mp h(2 0 km/h) and 130mp h(210 km/h))
and the dis tance totheve hicle ahead are set
and sa ved on thesteering wheel. Other
features of Active Dis tance Assist
DISTRONIC:
RAd justs the driving style depending on the
selected drive program (fuel-saving, comfort‐
able or dynamic) (
→page 172)
RRe sponds in urban speed ranges tostation‐
ary vehicles (e xcept bicycles, mo torcyc les
and pedestrians) if conditions are suf ficient
to enable de tection.
RInitiates rapid acceleration tothestored
speed, if the turn signal indicator is switched
on tochange totheov ertak ing lane.
RTake s one-sided overtaking restrictions into
account on free ways or on multi-lane roads
with separate car riag ewa ys.
Ve hicles with Active Parking Assis t:ifth eve hicle
has been braked toast andstill on multi-lane,
separate car riag ewa ysby Active Dis tance Assist
DISTRONIC, it can au tomatically follow theve hi‐
cle in front driving off again, within 30 seconds.
If a crit

ical situation is de tected when driving off,
a visual and acoustic warning is given indicating
th at the driver must now take control of theve hi‐
cle. The vehicle is not accelerated any fur ther. Ac
tive Dis tance Assist DISTRONIC is only an aid.
The driver is responsible forth e dis tance tothe
ve hicle in front, forve hicle speed and for braking
in good time.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing ins tances, forex ample:
RIn snow ,ra in, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatly varying
ambient light.
RThe windshield in the area of the camera is
dirty, fogged up, damaged or co vered.
RIfth era dar sensors are dirty or co vered.
ROn slippery roads, braking or accelerating
can cause the drive wheels tolose traction
and theve hicle could then skid.
RIn parking garage s or on roads with steep
uphill or downhill gradients.
Do not use Active Dis tance Assist DISTRONIC in
th ese situations.
Driving and parking 19
9

RWhentowing a trailer
#Ensure that the driven speed complies
with traf fic re gulations.
#Ad just the driving speed tosuit cur rent
traf fic and weather conditions.
Function of route-based speed adjustment
%
The availability of thefo llowing function is
countr y-dependent.
When Dis tance Assist DISTRONIC is acti ve,th e
function adju ststh e speed depending on the
ro ute events ahead. Depending on the drive pro‐
gram selected, theve hicle negotiates thero ute
eve nt ahead in a fuel-s aving, com fortable or
dynamic manner. When thero ute event has been
passed, theve hicle accelerates again tothe
st ored speed. The set dis tancetotheve hicle
ahead, vehicles de tected ahead and speed
re strictions ahead are take n into account.
Ro ute-based speed adjustment can byconfig‐
ured in the multimedia sy stem (
→page 204). Ro
ute events ahead are:
RBends
RT-intersections, traf fic circles and tollst a‐
tions
RTu rnings and exits
% When theto llst ation is reached, Active Dis‐
ta nce Assist DISTRONIC adopts the speed as
th estored speed.
Also, the speed is reduced if the turn signal to
ch ange lanes is switch ed on and one ofthefo l‐
lowing situations is de tected:
RTu rning off at intersections
ROn slowing-down lanes
ROn lanes adjacent toslowing-down lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tointersections, traf fic cir‐
cles and sets of traf fic lights, as route-
based
speed adjustment does not brake theve hicle to
a st andstill.
Wi th active route guidance, thefirs t speed
adjustment is car ried out automaticall y.Ifth e turn signal indica
tor is switched on, the selected
ro ute isconfirmed and fur ther speed adjustment
is activated.
Speed adjustment is canceled in thefo llowing
cases:
RIf th e turn signal indicator is switched off
before thero ute event.
RIfth e driver depresses the accelera tor or
brake pedal during the process.
Sy stem limitations
Ro ute-based speed adjustment 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 ambient conditions (e.g. unclear
ro ads, nar rowlanes, wetro ad sur faces, snow or
ice) or when driving wi tha trailer, the speed
adjustment made bythe sy stem may not alw ays
be suitable. In these situations the driver must
inter vene acco rding ly.
Driving and pa rking 203

vehicle is decelerated in stages toast andstill. At
speeds below 40 mph(6 0 km/h) the hazard
wa rning lights switch on automaticall y.
When stationary:
RThe vehicle is secured with the electric park‐
ing brake.
RAc tive Dis tance Assist DISTRONIC is ended.
RThevehicle is unloc ked.
RIf possible, an emer gency call is placed to
th e Mercedes-Benz emer gency call center.
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
RSt eering
RDepressing the brake or accelera tor pedal
RPressing a steering wheel button or operat‐
ing Touch Control
RAc tivating or deacti vating Active Dis tance
Assist DISTRONIC
Active Di stance Assist DI STRONIC displa ysin
th e instrument clus ter
The assis tance graphic and thest atus display
show thest atus of thefo llowing functions in the
instrument clus ter.
RAc tive Dis tance Assist DISTRONIC
RRoute-based speed adjustment
RActive Steering Assist
Assistance graphic
1Ro ute-based speed adjustment (type of
ro ute event)
2Vehicle ahead
3Dis tance indica tor
4Set specified di stance
5Own vehicle
208
Driving and parking

Crosswind Assist
The crosswindstabilization:
ROperates bychanging wheel loads thro ugh
adjusting the ABC spring stru ts.
RRe duces disruptions when driving stra ight
ahead.
RSupports coun terste ering.
RIs active in the speed range between 50 mph
(80 km/h) and 130mp h (2 10km/h) when
driving stra ight ahead or cornering gently.
RO AD SURFA CE SCAN
% This function is not available in all countries.
RO AD SURFA CE SCAN:
RMonitorsthero ad in front of theve hicle
using multifunction camera 1.
RIs active when drive program Comfortor
CURVE is selected.
RDetects une venness in thero ad sur face, e.g.
bump s, before theve hicle drives overth em.
RRe duces chassis mo vements. Sy
stem limitations
RO AD SURFA CE SCAN can be impaired in the
fo llowing situations or can stop functioning:
RIf th ero ad is insuf ficiently lit, e.g. at night.
RIn sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatly varying
ambient light.
RIf th e windshield in the area of multifunction
camera 1is dirty, fogged up, damaged or
co vered.
RIfth ero ad sur face has no optic stru cture or
re flects light.
RIf th e dis tance totheve hicle in front is too
short.
RIf sections of thero ute ha veave ry small
ra dius of cur vature.
RIn dynamic driving maneu ver,e.g. if you
accelerate or brake theve hicle sharply.
RAt speeds below 5 mph (7 km/h) or abo ve
11 2mp h (180 km/h).
RIfth eve hicle is at a raised le vel or in drive
prog ram Sport.
216
Driving and pa rking

If a course-correcting brake application occurs ,
th ere dwa rning lamp flashes in the outside mir‐
ro r and a warning tone sounds. In addition, a dis‐
pl ay 1 indicating the danger of a side collision
appears in the multifunction displa y.
In rare cases, the sy stem may make an inappro‐
priate brake application. This brake application
may be inter rupte d at any time if yousteer
slightly in the opposite direction or accelera te.
Sy stem limitations
Either a course-cor recting brake application
appropria teto the driving situation, or none at
all, may occur in thefo llowing situations:
RVe hicles or obs tacles, e.g. crash barr iers, are
located on bo thsides of your vehicle.
RAve hicle approaches too closely on the side.
RYo u ha veadop ted a sporty driving style with
high cornering speeds.
RYo ubr ake or accelerate signif icantly.
RA driving safe ty system inter venes, such as
ESP®or Active Brake Assi st.
RESP®is deacti vated.
RA loss of tire pressure or a defective tire is
de tected.
Ac tivating or deactivating Blind Spot Assi st
or Active Blind Spot Assi st
Multimedia sy stem:
,9HKLFOH.k $VVLVWDQFH.%OLQG
6SRW $VVLVW
#Ac tivate Oor deacti vate ª the function.
Ac tive Lane Keeping Assist
Function of Active Lane Keeping Assist
Active Lane Keeping Assist monitors the area in
front of your vehicle bymeans of multifunction
camera 1.
240
Driving and pa rking

RThere isglare, e.g. from oncoming traf fic, the
sun or reflections.
RThere is dirt on the windshield in the vicinity
of the multifunction camera or the camera is
fo gged up, damaged or obscured.
RNo or se veral, unclear lane markings are
present for one lane, e.g. in a construction
area.
RThe lane markings are worn, dark or co vered.
RThe dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
RThe lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
RThe road is very nar row and winding.
Ve hicles with Driving Assistance pac kage or
Driving Assistance Plus pa ckage: Active Lane
Ke eping Assist uses radar sensors tomonitor
se veral areas around theve hicle. If thera dar
sensors in there ar bumper are dirty or co vered
with snow ,th e sy stem may be impaired or may
not function. If an obs tacle in the lane in which yo
u are driving has been detected, no lane-cor‐
re cting brake application occurs .
Ac tivating Active Lane Keeping Assist
&
WARNING Risk of accident despite
Ac tive Lane Keeping Assist warning
A lane-cor recting brake application cannot
al wa ys bring theve hicle back into the origi‐
nal lane.
#Alw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application.
&
WARNING Risk of accident despite inter‐
ve ntion of Active Lane Keeping Assist
Ac tive Lane Keeping Assist does not de tect
traf fic conditions or road users. In very rare
cases, the sy stem may make an inappropri‐
ate brake application, e.g. af ter intentional ly
driving over a solid lane marking.
The brake application can be inter rupte d at
any time if yousteer slightly in the opposite
direction.
#Alw ays make sure that there is suf fi‐
cient dist ancetothe side forot her traf‐
fi c or obs tacles.
&
WARNING Risk of accident despite Lane
Ke eping Assist
Lane Keeping Assist cannot always clearly
de tect lane markings.
In such cases, Lane Keeping Assist can:
Rgive an unnecessary warning
Rnot give a warning
#Alw ays pay particular attention tothe
traf fic situation and keep within the
lane, especially if Active Lane Keeping
Assist alerts you.
Re quirement:
The driving speed is at least 40 mph (60 km/h).
242
Driving and pa rking

#Press button2.
If indicator lamp 1lights up, Lane Keeping
Assist is activated. When lane markings are
de tected, the lines in the assis tance graphic
are shown in white.
Sensitivity of Active Lane Keeping Assist
Wi th th est andard or adaptive setting, you can
influence when thewa rning vibration of Lane
Ke eping Assist take s place. In bo
th thest andard and adaptive settings, no
wa rning vibration occurs in thefo llowing situa‐
tions:
RYo u ha veswitched on the turn signal indica‐
to r.
RA driving safe ty system inter venes, such as
ABS, BAS or ESP®.
In the adaptive setting, there will also be no
wa rning vibration in thefo llowing situations:
RThe vehicle is accelerated or braked consid‐
erably.
RYo usteer actively, e.g. swer vetoavo id an
obs tacle or change lane quickl y.
RYou cut the corner on a sharp bend.
Setting the sensitivity of Active Lane Keep‐
ing Assist
Multimedia sy stem:
,9HKLFOH.k $VVLVWDQFH.$FW
/DQH .HHS $VVLVW
#Select a setting.
Driving and parking 24
3

Menus and submenus
Functions in the Service menu of the on-
board compu ter
On-board computer:
,6HUYLFH
#To select the function: swipe upwards or
down wards on the left-hand side of Touch
Control.
#Press the left-hand side of Touch Control.
Fu nctions in the6HUYLFH menu:
RMessage memory (→page 457)
R7LUHV:
-Checking the tire pressure with the tire
pressure monitoring sy stem (→page 419)
-Re starting the tire pressure monitoring
sy stem (→page 420)
R$66<67 3/86: calling up the service due
date (→page 377)
Calling up the Assistance graphic display
On-board computer:
,'ULYH$VVLVW
% When you ha veset thest yle to 3URJUHVVLYH,
yo u can view the assis tance graphic menu
contents in the left-hand portion of the
instrument displa y.
The following displa ysare available from the
Assist ance graphic menu:
RAssistance graphic
RAt tention le vel (→page 232)
#To switch between the displa ys:swipe
up wa rds or down wards on the left-hand side
of Touch Control.
Status displa ysinthe Assis tance graphic:
Ré: ATTENTION ASSIST deactivated
Ræ: Active Brake Assi stdeactivated
RLight lane markings: Active Lane Keeping
Assist activated
RGreen lane markings: Active Lane Keeping
Assist active
24 8
Instrument Display and on-board computer