MERCEDES-BENZ S-CLASS SEDAN 2018 Owner's Guide

For additional information please referto the
ch ap ter Multimedia sy stem and/or the mbrace
Te rm s and Conditions.
Event Data Recorders
This vehicle is equipped with an event data
re corder (EDR). The main purp ose of an EDR is
to record, in cer tain crash or near crash-like sit‐
uations, such as an air bag deployment or hitting
a ro ad obs tacle, data that will assist in under‐
st anding how a vehicle's sy stems per form ed.
The EDR is designed torecord data related to
ve hicle dynamics and saf etysy stems for a short
period of time, typically 30 seconds or less.
The EDR in this vehicle is designed torecord
such data as:
RHowvarious sy stems in your vehicle were
operating
RWhe ther or not the driver and front
passenger seat belts werebuckled/fas tened
RHow far (if at all) the driver was depressing
th e accelera tor and/or brake pedal and
RHow fasttheve hicle was tr aveling. This data can help pr
ovide a better under stand‐
ing of the circums tances in which accidents and
inju ries occur. NOTE: EDR data is recorded by
yo ur vehicle only if a non-trivial crash situation
occurs; no data is recorded bythe EDR under
normal driving conditions and no personal data
(e.g. name, gende r,age and crash location) is
re corded. Ho wever,ot her parties, such as law
enforcement, could combine the EDR data with
th e type of personally identifying data routinely
acquired during a crash inve stigation.
Ac cess tothe
ve hicle and/or the E
DR is needed
to read data that is recorded byan EDR, and
special equipment is required. In addition tothe
ve hicle manufacturer, other parties that ha vethe
special equipment, such as law enforcement,
can read the information byaccessing theve hi‐
cle or the EDR.
EDR data may be used in civil and criminal mat‐
te rs as a tool in accident reconstruction, acci‐
dent claims and vehicle saf ety. Since the Crash
Data Retrie val (CDR) tool that is used toextract
da ta from the EDR is commercially available,
Mercedes-Benz US A,LLC ("MBUSA") expressly
disclaims any and all liability arising from the ex
traction of this information byunauthorized
Mercedes-Benz personnel.
MBUSA will not share EDR data withot hers with‐
out the consent of theve hicle owner or, if the
ve hicle is leased, without the consent of the les‐
see. Exceptions tothis representation include
re sponses tosubpoenas bylaw enforcement; by
fe deral, state or local go vernment; in connection
with or arising out of litigation in volvin g MBUSA
or its subsidiari es and affiliates; or, as requ ired
by law.
Wa rning: the EDR is a component of the
Re stra int Sy stem Module. Tamp ering with, alter‐
ing, modifying or removing the EDR component
may result in a malfunction of theRe
stra in
t Sys‐
te m Module and other sy stems.
St ate la wsorregulations rega rding EDRs that
con flict with federal regulation are pre-em pted.
This means that in theeve nt of such conflict,the
fe deral regulation go verns. As of February 20 13,
13 states ha veenacted la wsrelating toEDRs.
General no tes 29

Copyright
Free and open source software
Info rmation on free and open source software
licenses foryo ur vehicle's software can be found
on the data storage medium in your vehicle
document wallet and on the Internet toge ther
with updates:
http://www.mercedes-benz.com/opensource
Re gis tere d trademar ks
RBluetoo th®is a regis tere d trademark of Blue‐
toot h SIG Inc.
RDTS™ is a regis tere d trademark of DTS, Inc.
RDolby®and MLP™ are regis tere d trademar ks
of DOLBY Laboratories.
RBabySmart™, ESP®and PRE-SAFE®are reg‐
is te re d trademar ksof Daimler AG.
RHomeLink®is a regis tere d trademark of
Johnson Contro ls.
RiPod®andiTunes®are regis tere d trademar ks
of Apple Inc.
RBurmes ter®is a regis tere d trademark of
Burmes terAu diosy steme GmbH.
RMicrosoft®and Windo wsMedia®are regis‐
te re d trademar ksof Microsoft Corporation.
RSIRIUS®is a regis tere d trademark of Sirius
XM Radio Inc.
RHD Radio™ is a regis tere d trademark of iBiq‐
uity Digital Corporation.
RGraceno te®is aregis tere d trademark of
Graceno te, Inc.
RZAGA TSurve y®and related brands are regis‐
te re d trademar ksof ZagatSur vey, LLC.
30
General no tes

Restra int sy stem
Pr otection bythere stra int sy stem
The restra int sy stem includes thefo llowing:
RSeat belt sy stem
RAir bags
RChild restra int sy stem
RChild seat securing sy stem
The restra int sy stem can reduce therisk of vehi‐
cle occupants coming into contact with parts of
th eve hicle interior in theeve nt of an accident. In
th eev ent of an accident, there stra int sy stem
can also reduce thefo rc es towhich theve hicle
occupants are subjected.
A seat belt can only pr ovide the best le vel of pro‐
te ction if it is worncor rectl y.Depending on the
de tected accident situation, Emergency Tension‐
ing Devices and/or air bags supplement the pro‐
te ction of fere dby a cor rectly wornseat belt.
Emer gency Tensioning Devices and/or air bags
are not depl oyed in everyaccident. In order
forth ere stra int sy stem toprov ide the
intended le vel of pr otection, each vehicle occu‐
pant must obser vethefo llowing information:
RFa sten seat belts cor rectl y.
RSit in an almost up right seat position with
th eir back against the seat backrest.
RSit with their feet resting on thefloor, if pos‐
sible.
RAlw ays secure persons under 5 ft(1.50 m)
ta ll in an additional restra int sy stem suitable
fo r Mercedes-Benz vehicles.
Ho wever,no sy stem available today can com‐
ple tely elimin
ate in
juries and fata lities in every
accident situation. In particular, the seat belt
and air bag generally do not pr otect against
objects penetrating theve hicle from the outside.
It is also not possible tocomplet elyrule out the
ri sk of injury caused bythe air bag deploying.
Re duced restra int sy stem pr otection
&
WARNING Risk of injury or death from
modifications tothere stra int sy stem
The restra int sy stem can no longer function
cor rectly af ter alterations ha vebeen made.
The restra int sy stem may then not pr otect
th eve hicle occupants as intended byfailing
in an accident or triggering unexpec tedly, for
ex ample
#Ne ver alter the parts of there stra int
sy stem.
#Ne verta mp er with the wiring or any
electronic component parts or their
software.
RIf it is necessary tomodify theve hicle to
accommodate a person with disabilities, con‐
ta ct an au thorized Mercedes-Benz Center for
de tails.
RUSA only: for de tails, con tact our Cu stomer
Assis tance Center on 1-800-FOR-MERCedes
(1‑800‑367‑63 72).
Occupant saf ety 31

Restra int sy stem functionality
When the ignition is switched on, a sy stem self-
te st is per form ed, during which the6
re stra int sy stem warning lamp lights up. It goes
out no later than a few seconds af terth eve hicle
is star ted. The components of there stra int sys‐
te m are then functional.
Malfunctioning restra int sy stem
A malfunction has occur red in there stra int sys‐
te m if:
RThe 6 restra int sy stem warning lamp
does not light up when the ignition is
switched on.
RThe 6 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journe y.
&
WARNING Risk of injury orfata l injury
due toa malfunction in there stra int sys‐
te m
If th ere stra int sy stem is malfunctioning,
re stra int sy stem components may be trig‐
ge red unintentionally or might not be trig‐
ge red at all in theeve nt of an accident. This
may af fect the Emer gency Tensioning Device
or airbag, forex ample.
#Ha ve there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop.
Fu nction of there stra int sy stem in an acci‐
dent
How there stra int sy stem works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
RFr ontal impact
RRe ar impact
RSide impact
RRo llover The activation
thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of
th e components of there stra int sy stem should
ta ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measure d
af te r a collision has occur red cann otplay a deci‐
sive role in air bag deployment, nor do they pro‐
vide an indication of air bag deployment.
The vehicle may be deformed significantly with‐
out an air bag being deplo yed. This is the case if
only parts which are relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an air bag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, forex am‐
ple, theve hicle deceleration may be high enough
fo rth is to happen.
32
Occupant saf ety

The components of there stra int sy stem can
be activated or deplo yed independently of
each other:
Component De tected deploy‐
ment situation
Emer gency Tension‐
ing Devices Fr
ontal impact, rear
impact, side impact,
ro llo ver
Driver's air bag, front
passenger air bag Fr
ontal impact
Knee air bag Frontal impact
Side air bag Side impact
Wi ndow air ba gS ide impact,rollo ver,
frontal impact
Belt air bag Frontal impact
Cushionbag Frontal impact
The front-passenger air bag can be deplo yed in
an accident only if thePA SSENGER AIR BAG OFF
indicator lamp is off. If the front passenger seat is occupied, make sure, bo
thbefore and during
th e journe y,that thest atus of the front
passenger air bag is cor rect (
→page 43).
&
WARNING Risk of burn s from hot air bag
components
The air bag parts are hot af ter an air bag has
been deploy ed.
#Do nottouch the air bag parts.
#Ha ve a deplo yed air bag replaced at a
qu alified specialist workshop as soon
as possible.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. Take this into account, partic‐
ularly if an Emer gency Tensioning Device is trig‐
ge red or an air bag is deplo yed.
If th e Emer gency Tensioning Devices are trig‐
ge red or an air bag is deplo yed, youwill hear a
bang, and po wdermay also be released:
RThe bang will not generally af fect your hear‐
ing.
RIn general, the powder released is not haz‐
ardous tohealth but may cause short-term
breathing dif ficulties topersons suf fering
from as thma or other pulmonary conditions.
Pr ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr eve nt brea thing dif ficulties.
Air bags and pyrotech nic Emergency Tensioning
Devices contain pe rchlorate material, which may
re qu ire special handling or environmental pro‐
te ction measure s.Na tional guidelines must be
obser ved during disposal. In California, see
http://www.dtsc.ca.gov/HazardousWas te/
Pe rchlorate/index.cfm.
Seat belts
Pr otection pr ovided bythe seat belt
Alw aysfast enyour seat belt co rrectly before
st arting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectl y.
Occupant saf ety 33

&WARNING Risk of injury or death dueto
incor rectly fastened seat belt
If th e seat belt is not worncor rectly, it can‐
not per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction suddenly .
#Always ensure that all vehicle occu‐
pants ha vetheir seat belts fastened
cor rectly and are sitting prope rly.
In order forth e cor rectly wornseat belt topro‐
vide the intended le vel of pr otection, each vehi‐
cle occupant must obser vethefo llowing infor‐
mation:
RThe seat belt must not be twis ted and must
fi t tightly and snugl yacross the body.
RThe seat belt must be routed across the cen‐
te r of the shoulder and as low down across
th e hips as possible.
RThe shoulder section of the seat belt should
not touch your ne cknor be routed under
yo ur arm or behind your bac k.
RAvoid wearing bulky clo thing, e.g. a winter
coat.
RPush the lap belt down as far as possible
across your hips and pull tight with the shoul‐
der section of the belt. Ne verro ute the lap
belt across your abdomen.
RNe verro ute the seat belt across sharp, poin‐
te d, abrasive or fragile objects.
ROnly one person should use each seat belt at
any one time. Ne ver all owbabies and chil‐
dren totrave l sitting on the lap of ano ther
ve hicle occupant.
RNe ver secure objects with a seat belt if the
seat belt is also being used byone of the
ve hicle's occupants. Alw ays obser vethe
instructions for loading theve hicle when
securing objects, luggage or loads
(
→page 118).
Also ensu rethat no objects are placed
between a person and the seat. e.g. a cush‐
ion. The seat belts on
thefo llowing seats are equip‐
ped with a special seat

beltretractor:
RFront passenger seat
RRe ar seats
Ac tivate or deacti vate the special seatbelt
re tractor of the seat belt (
→page 50).
If ch ildren are tr aveling in theve hicle, be sure to
obser vethe instructions and saf etyno tes on
"Children in theve hicle" (
→page 47).
Re duced seat belt pr otection
&
WARNING Risk of injury or death dueto
incor rect seat position
The seat belt does not of ferth e intended
le ve l of pr otection if you ha venot mo vedth e
seat backrest toan almost vertical position.
When braking or in theev ent of an accident,
yo u could slide underneath the seat belt and
sus tain abdominal or neck injuries, forex am‐
ple.
34 Occupant saf ety

#Adjust the seat proper lybefore begin‐
ning your journe y.
#Always ensure that the seat backrest is
in an almost vertical position and that
th e shoulder section of your seat belt is
ro uted across the center of your shoul‐
der.
& WARNING Risk of injury or death when
additional restra int sy stems are not used
fo r persons with a smaller build
Pe rsons under 5 ft(1.50 m ) tall cannot wear
th e seat belt cor rectly wi thout a suitable
additional restra int sy stem.
If th e seat belt is not worncor rectly, it can‐
not per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction suddenly .
#Always secure persons under 5 ft
(1.50 m) tall in a suitable restra int sys‐
te m.
&
WARNING Risk of injury or death dueto
bloc ked seat belt buckle or seat belt
anchorage
Objects next tothe front seat that block the
seat belt buckle or the moving seat belt
anchorage on the front seat impair the func‐
tion of the Emer gency Tensioning Devices.
The Emergency Tensioning Devices can,
th en, not function as intended and the seat
belt can no longer pr ovide the intended pro‐
te ction.
#Before starting the journe y,make sure
th at there are no objects around the
seat belt buckle or between the front
seat and door.
& WARNING Risk of injury or death dueto
damaged or modified seat belts
Seat belts cann otprov ide pr otection in the
fo llowing situations:
RIf th e seat belts are damaged, modified,
ex treme lydirty, bleached or dyed
RIfth e seat belt buckle is damaged or
ex treme lydirty
RIfth e Emer gency Tensioning Devices,
seat belt anchorages or seat belt retrac‐
to rs have been modified
Seat belts may be damaged in an accident,
although the damage may not be visible, e.g.
due tosplinters of glass.
Modified or damaged seat belts may tear or
fa il, e.g. in an accident.
Modified Emer gency Tensioning Devices can
accidental lytrig ger or failto function as
intended.
#Ne ver modify the seat belts, Emer gency
Te nsioning Devices, seat belt ancho‐
ra ge s or seat belt retractors.
#Make surethat the seat belts are
undamaged, not wornand clean.
#Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop.
Occupant saf ety 35

Only use seat beltsthat ha vebeen appr ovedfo r
yo ur vehicle byMercedes-Benz.
&
WARNING Risk of injury or death from
deplo yedpy rotech nic Emergency Ten‐
sioning Devices
Pyro tech nic Emergency Tensioning Devices
th at ha vebeen deplo yed are no longer opera‐
tional and are unable toper form their inten‐
ded pr otective function.
#Therefore, ha vedeplo yedpy rotech nic
Emergency Tensioning Devices immedi‐
ately replaced at a qualified specialist
wo rkshop.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident.
* NO
TEDama gecaused bytrapping the
seat belt
If an unused seat belt is not fully retracted, it
may become trapped in the door or in the
seat mechanism.
#Alw ays ensure that an unused seat belt
is fully retracted.
In fo rm ation on the belt air bag in there ar
seat belt
The BELTB AGidentification indicates that a rear
seat belt is equipped with a belt air bag.
When activated, the belt air bag increases the
pr otected area of theve hicle occupant's ribcage.
&
WARNING Risk of injury or death
th ro ugh the use of a non-appr ovedch ild
re stra int sy stem
In an accident, the belt air bag may damage
a non-appr oved or non-authorized child
re stra int sy stem.
As a result, thech ild restra int sy stem may
not be able toprov ide the intended le vel of
pr otection.
#Therefore, alw ays use LATC H or LATC H-
type (ISOFIX) tofast en a child seat
equipped with an integrated restra int
sy stem.
#Fo rve hicles equipped with the optional
re ar seat-belt air bags ("beltbag"), only
use a Mercedes-Benz appr oved boos ter
seat with integrated backrest.
#Ne ver use an air bag equipped seat belt
to fast en a front or rear-facing child
seat or a non-appr oved boos ter seat.
#Please contact an au thorized Mercedes-
Benz Center for information on
app rove dch ild restra int sy stems.
Fa stening and adju sting seat belts
Ifth e seat belt is pulled quickly or sharpl y,the
seat belt retractor lo cks. The belt stra p cann ot
be pulled out any fur ther.
36
Occupant saf ety

#Always engage seat belt tongue 2ofthe
seat belt into seat belt buckle 1ofthe cor‐
re sponding seat.
#Press and hold the seat belt outlet release
and slide the seat belt outlet into the desired
position.
#Let go of the belt outlet release and ensure
th at the seat belt outlet loc ksin position. Ve
hicles with PRE-SAFE
®:If th e front seat belt
is not pulled tight across your body, the seat belt
adjustment may automatically apply a cer tain
tigh tening forc e. Do not hold the seat belt tightly
while it is adjusting. You can activate and deacti‐
va te the seat belt adjustment function using the
multimedia sy stem.
Ve hicles with automatic front passenge r air
bag shu toff:
* NO
TEDeployment of the Emer gency
Te nsioning Device and side air bag when
th e front passenger seat is unoccupied
Ifth e seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the Emer gency Tensioning
Device and the side air bag may also deploy
in theev ent of an accident along with other
sy stems.
#Only one person should use each seat
belt at any one time.
Ve hicles without automatic front passenge r
air bag shu toff: *
NO
TEDeployment of the Emer gency
Te nsioning Device when the front
passenger seat is unoccupied
If th e seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the Emer gency Tensioning
Device may also depl oyintheev ent of an
accident along with other sy stems.
#Only one person should use each seat
belt at any one time.
Information on there ar seat belt buckle
ex tender
The seat belt buckle extender forth e outer rear
seats makes it easier tofast enthe seat belt.
Alw ays ensure that the seat belt buckle can be
ex tended and retracted freely.
Af terth e seat belt is fastened, the seat belt
buckle returns toits normal position. The seat
belt then lies tightly across the lap and thorax
areas.
Occupant saf ety 37

Releasing seat belts
#Press there lease button in the seat belt
buckle and guide the seat belt back with the
seat belt tongue.
Ac tivating or deactivating seat belt adjust‐
ment via the multimedia sy stem
Multimedia sy stem:
,9HKLFOH.î 9HKLFOH 6HWWLQJV.%HOW
$GMXVWPHQW
#Ac tivate Oor deacti vate ª the function.
Seat belt warning function for the driver and
front passen ger
The ü seat belt warning lamp in the Instru‐
ment Display is a reminder that all vehicle occu‐
pants must weartheir seat belts cor rectly.
The ü seat belt warning lamp lights up for six
seconds af tereve ryengine start.
In addition, an acoustic warning tone may sound. When
the driver's and front passenger's doors
are closed and the driver and front passenger
ha ve fast ened their seat belts, the seat belt
wa rning goes out.
During a journe y,the seat belt warning lights up
if:
RThe vehicle speed exceeds 15mp h
(25 km/h) and the driver's or front
passenger seat belt is not fastened.
RThe driver or front passenger unfas tens their
seat belt while theve hicle is in motion.
Airbags
Overview of air bags
1Knee air bag
2Driver's air bag
3Front-passenger front air bag
4Wi ndow air bag
5Side air bag
The ins tallation location of an air bag is identi‐
fi ed bythe AIRB AGsymbol.
38
Occupant saf ety