2018 MERCEDES-BENZ S-CLASS SEDAN brake sensor

*NO
TEImpairment of the operating ef fi‐
ciency of there stra int sy stems from
ins talling accessories or from repairs or
we lding
Airbags, Emer gency Tensioning Devices, as
we ll as control units and sensors forth e
re stra int sy stems, may be ins talled in thefo l‐
lowing areas of your vehicle:
RDoors
RDoor pillars
RDoor sills
RSeats
RCo ckpit
RInstrument clus ter
RCente r console
#Do not ins tall accessories such as audio
sy stems in these areas.
#Do not car ryout repairs or welding.
#Have accessori esretrofitted at a quali‐
fi ed specialist workshop.
Yo u could jeopardize the operating saf etyof your
ve hicle if you use parts, tires and wheels as well
as accessories releva nt tosaf etywhic hha ve not
been appr ovedby Mercedes-Benz. Saf ety-re le‐
va nt sy stems, e.g. the brake sy stem, may mal‐
function. Only use Mercedes-Benz GenuineParts
or parts of equal quality. Only use tires, wheels
and accessory parts that ha vebeen specifically
appr ovedfo ryo ur vehicle model.
Mercedes-Benz GenuineParts are subject to
st rict quality control. Each part has been spe‐
cially de veloped, manufactured or selecte dfo r
Mercedes-Benz vehicles and fine-tuned forth em.
Therefore, only Mercedes-Benz GenuineParts
should be used.
More than 300,000 dif fere nt Mercedes-Benz
GenuineParts are available for Mercedes-Benz
models.
All au thorized Mercedes-Benz Centers maintain
a supply of Mercedes-Benz GenuineParts for
necessary service and repair work. In addition,
st ra tegically located parts-delivery centers pro‐
vide forqu ick and reliable parts service. Alw
ays specify theve hicle identification number
(VIN) (→page 445) when orde ring Mercedes-
Benz GenuineParts.
Ope rato r's Manual
This Operator's Manual describes all models and
all standard and optional equipment available for
yo ur vehicle at the time of this Opera tor's Man‐
ual going topress. Countr y-specific dif fere nces
are possible. No tethat your vehicle may not be
equipped with all features descri bed. This also
applies tosaf ety-re leva nt sy stems and functions.
Therefore, the equipment on your vehicle may
dif fer from that in the descriptions and illustra‐
tions.
The original pur chase contract documentation
fo ryo ur vehicle contains a list of all of the sys‐
te ms in your vehicle.
Should you ha veany questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Booklet
are impor tant documents and should be kept in
th eve hicle.
20
General no tes

Rstatus messages concerning theve hicle and
its individual components (e.g. number of
wheel revo lutions/speed, decele ration, lat‐
eral acceleration, display of thefast ened seat
belts)
Rmalfunctions or defects in impor tant sy stem
components (e.g. lights, brakes)
Rinformation on vehicle damage events
Rsystem reactions in special driving situations
(e.g. air bag deployment, inter vention of sta‐
bility control sy stems)
Rambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding the actual control unit
function, this data assists the manufacturer in
de tecting and rectifying malfunctions and opti‐
mizing vehicle functions. The majority of this
data is temp orary and is only processed in the
ve hicle itself. Only a small portion of the data is
st ored in theev ent or malfunction memor y.
When your vehicle is serviced, tech nical da ta
from theve hicle can be read out byservice net‐
wo rkemplo yees or third parties. Services
include repair services, maintenance processes, wa
rranty events and quality assurance meas‐
ures, forex ample. The read out is per form ed via
th e legally prescribed port for OBD ("on-board
diagnostics") in theve hicle. The respective
service network locations or third parties col‐
lect, process and use the data. They document
te ch nical statuses of theve hicle, assist in
find
‐
ing malfunctions and impr oving quality and are
transmitte dto the manufacturer, if necessar y.
Fu rthermore, the manufacturer is subject to
product liability. Forth is, the manufacturer
re qu ires tech nical da tafrom vehicles.
Malfunction memories in theve hicle can be
re set bya service outlet as part of repair or
maintenance work.
They can enter data into theve hicle's con veni‐
ence and inf otainment functions themselves as
part of the selected equipment.
This includes, forex ample:
Rmultimedia data such as music, films or pho‐
to sfo r playba ckin an integrated multimedia
sy stem
Raddress book data for use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
Rentered navigation destinations
Rdata about the use of Internet services
This data can be stored locally in theve hicle or
is located on a device which you ha veconnected
to theve hicle. If this data is stored in theve hi‐
cle, you can dele teit at any time. This data can
only be transmitte dto third parties upon your
re qu est with particular rega rd tothe scope of
use of online services according to your selected
settings.
Yo u can store or change con venience settings/
individualization in theve hicle at any time.
Depending on the eq uipment,
this in
cludes,for
ex ample:
Rseat and steering wheel position settings
Rsuspension and climate control settings
Rindividualization such as interior lighting
If yo ur vehicle is accordingly equipped, you can
connect your smartphone or ano ther mobile end
General no tes 27

must be located in marked space 2during
th e entire journe y.
#Have SmartK ey1 checked at a qualified
specialist workshop.
If th eve hicle does not star t:
#Lea veSmartK ey1 in mar ked space 2.
#Depress the brake pedal and start theve hicle
using thest art/ stop button.
% You can also switchon the po wer supp lyor
th e ignition with thest art/ stop button.
Breaking-in no tes
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers.
To preser vethe engine during thefirs t
1, 000 miles (1,500 km):
RDrive at varying road speeds and engine
speeds.
RDrive in drive program Cor E.
RChange ge ar beforetheta ch ome ter needle is
Ô ofthewa yto there d area of theta ch ome‐
te r.
RDo not shi ftdown a gear manually in order to
brake.
RAv oid overstraining theve hicle, e.g. driving at
full thro ttle.
RDo not depress the accelera tor pedal be yond
th e pressure point (kickdown).
ROnly increase the engine speed gradually and
accelera tetheve hicle tofull speed af ter
1, 000 miles (1,500 km).
This also applies when the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing breaking-in
no tes:
RIn cer tain driving and driving saf etysy stems,
th e sensors adjust automatically while a cer‐
ta in dis tance is driven af terth eve hicle has
been delivered or af terre pairs. Full sy stem
ef fectiveness is not achie ved until the end of
th is teach-in process.
RBrake linings, brake discs and tires that are
either new or ha vebeen replaced only ach‐
ie ve optimum braking ef fect and gri
p af
ter
se veral hundred kilom eters of driving. Com‐
pensate forth ere duced braking ef fect by
applying greater forc eto the brake pedal.
Note s on driving
&
WARNING Risk of accident due to
objects in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tra vel or block a depressed pedal.
This jeopardizes the operating and road
saf etyof theve hicle.
#Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll.
#Ensure floor mats and carpets cannot
slip and pr ovide suf ficient room forth e
pedals.
#Do not lay multiple floor mats or car‐
pets on top of one ano ther.
16 8
Driving and pa rking

#Select<HV.
St andby mode is activated.
Driving and driving saf ety sy stems
Driving sy stems and your responsibility
Yo ur vehicle is equipped with driving sy stems
which assist youin drivin g, parking and maneu‐
ve ring theve hicle. The driving sy stems are aids
and do not relie ve you of your responsibility. Pay
attention tothe tra ffic conditions at all times
and inter vene when necessary . Beaware of the
limitations rega rding the safe use of these sys‐
te ms.
Fu nction of thera dar senso rs
Some driving and driving safe ty systems use
ra dar sensors tomonitor the area in front of,
behind or next totheve hicle (depending on the
ve hicle's equipment).
Depending on theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind thera diator grill. Keep these
parts free of dirt, ice and slush (
→page 389). The sensors must not be co
vered, forex ample
by bicycle rack s, overhanging loads or radar-
re flecting sticke rs.Fo llowing an impact and in
th eeve nt of associated damage , which may not
be visible, tothe bumpers or radiator grille, ha ve
th e function of thera dar sensors checked at a
qu alified specialist workshop. The driver assis‐
ta nce sy stem may no longer workproperly.
Overview of driving sy stems and driving
saf ety sy stems
In this section, you will find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R360° Camera (→page 224)
RABS (Anti-lock BrakingSystem)
(→page 189)
RAc tive Dis tance Assist DISTRONIC
(→pa ge 199)
RAIR BODY CONTROL(→page 211)
RAc tive Brake Assi st(→page 192)
RAc tive Lane Keeping Assist (→page 240)
RATTENTION ASSIST (→page 232)
RBA S (Bra ke Assist System) (→page 189)
REBD ( Electronic Brakeforc eDistribution)
(→page 192)
RESP®(E lectronic Sta bility Program)
(→page 189)
RHOLD function (→page 210)
RST EER CONTROL (→page 192)
RAc tive Steering Assist (→page 204)
RMAGIC BODY CONTROL (→page 214)
RAc tive Parking Assist (→page 226)
RPa rking Assist PARKTRONI C (→page21 8)
RRe ar view camera (→page 222)
RCruise control (→page 196)
RBlind Spot Assist and Active Blind Spot Assi st
(→page 238)
RTr af fic Sign Assist (→page 233)
188
Driving and pa rking

Canceling a brake application ofActive Brake
Assi st
Yo u can cancel a brake applic ation of Active
Brake Assi stat any time by:
RDep ressing the accelera tor pedal fully.
RRe leasing the brake pedal.
Ac tive Brake Assi stcancels the inter vention
when at least one of thefo llowing conditions is
fulfilled:
RYo u maneuver to avoidthe obs tacle.
RThere is no longer a risk of collision.
RAn obs tacle is no longer de tected in front of
yo ur vehicle.
Evasive Steering Assist (only vehicles with
Driving Assistance pac kage)
Evasive Steering Assist has thefo llowing charac‐
te rist ics:
RCan de tect stationary or crossing pedes‐
trians.
RCan assist the driver with additional steering
assis tance if it de tects a swerving maneuver.
RCan be acti vatedby an abrupt steering mo ve‐
ment during a swerving maneu ver.
RCan assist during swerving and stra ightening
of theve hicle.
RCan react from a speed of appr oximately
12 mp h(2 0 km/h) up toa speed of appr ox‐
imately 43 mph(7 0 km/h).
RYo u can preve ntthe assis tance at any time
by active steering.
&
WARNING Risk of an accident despite
Evasive Steering Assist
Evasive Steering Assist cannot always clearly
identify objects and complex traf fic situa‐
tions.
In addition, thesteering support of Evasive
St eering Assist is generally not suff icientto
av oid a collision.
In such cases Evasive Steering Assist can:
Rgive an unnecessary warning or pr ovide
assis tance
Rnot give awa rning or not pr ovide assis‐
ta nce
#Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Ev asive
St eering Assist alone.
#Be ready tobrake and take evasive
action if necessar y.
#Preve ntthe assis tance byactively steer‐
ing in non-critical driving situations.
#Drive at an appropriate speed if pedes‐
trians are close tothe path of your vehi‐
cle.
Also obser vethe sy stem limitations of Evasive
St eering Assist.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
RIn sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
ambient light.
RIf th e sensors are dirty, fogged up, damaged
or co vered.
Driving and parking 19
5

RIfth e sensors malfunction due to otherradar
source inter fere nce, forex ample strongradar
re flections in parking garage s.
RIf a loss of tire pressure or a defective tire
has been de tected and displ ayed.
The sy stem may not react cor rectly:
RIn complex traffic st ations where objects
cannot alw ays be clearly identified.
RTo pedestrians or vehicles if they mo ve
qu ickly into the sensor de tection range.
RTo pedestrians who are hidden by other
objects.
RIf th e typical outline of a pedestrian cannot
be distinguished from the bac kground.
RIfa pedestrian isnot recognized as such , e.g.
due tospecial clo thing or other objects.
ROn bends with a tight radius.
Setting Active Brake Assi st
Multimedia system:
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%UDNH $VVLVW
Ve hicles without Driving Assistance pack‐
age: The settings can be made af terst arting the
ve hicle.
Ve hicles with Driving Assistance pac kage:
The settings can be made when the ignition is
switched on.
% It is recommended that you alw ays lea ve
Ac tive Brake Assi stswitched on.
Select one of thefo llowing settings:
#(DUO\ :yo ur selection isretained when the
ve hicle is next star ted.
#0HGLXP :yo ur selection isretained when the
ve hicle is next star ted.
#/DWH: your selection isretained when the
ve hicle is next star ted.
#2II:
Ve hicles without Driving Assistance pack‐
age: The dis tance warning function and the
autonomous braking function are deactiva‐
ted. When theve hicle is next star ted, the
middle setting is auto matically selected.
Ve hicles with Driving Assistance pack‐
age: The dis tance warning function and the
autonomous braking function are deactiva‐
te d. Evasive Steering Assist is una vailable.
When the ignition is next star ted, the middle
setting is selected automatically and Evasive
St eering Assist is available.
% When Active Brake Assi stis deactivated, the
æ symbol appears inthe assis tance
graphic in the multifunction displa y.
Speed control cruise control
Function of cruise control
Cruise cont rol accelerates and brakes theve hi‐
cle automatically in order tomaintain a pr evi‐
ously stored speed.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal af terove rtaking,
cruise control will resume speed regulation back
to thestored speed.
19 6
Driving and pa rking

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

&WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
RIfth eve hicle pulls away using Active Dis‐
ta nce Assist DISTRONIC.
RIfth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
RIfAc tive Dis tance Assist DISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects.
#Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times.
#Ta ke into account the tra ffic situation
before calling up thestored speed.
&
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC brakes
yo ur vehicle with up to50 % of the maximum
possible deceleration. If this decele ration is
not suff icient,Active Dis tance Assist
DISTRONIC alerts you with a visual and
acoustic warning.
#In these cases, adjust your speed and
ke ep a suf ficient dist ance.
#Braketheve hicle yourself and/or take
ev asive action.
&
WARNING Risk of accident if de tection
function of Active Dis tance Assist
DISTRONIC is impaire d
Ac tive Dis tance Assist DISTRONIC does not
re act or only pa rtially reacts:
RWhen driving on a dif fere nt line tothe
ve hicle ahead or changing lane.
RTo pedestrians, animals, bicycles or
mo tor bikes, stationary vehicles or unex‐
pected obs tacles.
RTo complex traffic situations.
RTo oncoming vehicles and crossing traf‐
fi c.
Ac tive Dis tance Assist DISTRONIC can nei‐
th er give warnings nor inter vene in such sit‐
uations.
#Alw ays obser vethe tra ffic conditions
carefully and react accordingl y.
OperatingActive Di stance Assist DI STRO NIC
Re quirements:
RThe vehicle has been star ted.
RThe elect ric park ing brake is released.
RESP®is activated and is not inter vening.
RThe transmission is in position h.
RAllthe doors are closed.
RCheck of thera dar sensor sy stem success‐
fully comple ted (vehicle tra veling fasterthan
12 mp h (20 km/h)).
200
Driving and parking