2021 MERCEDES-BENZ S-CLASS SALOON LONG Owners Manual

&
W
WARNI NG
ARNI NGRisk of injury due toobjects
placed in front of there ar airbag co ver
Objects in front of there ar airbag co ver can
hinder or pr eventthe cor rect deployment of
th ere ar airbag which is integ rated into the
front seat.
The rear airbag can po tential lydeploy in an
uncontrolled manner and can cause additional
inju ryto the person on the front seat. #
Always st owand secure objects cor-
re ctl y. Obser
vethe no tes on loading theve hicle
(/ page 148).
Disabling/enabling t Disabling/enabling t he r
he rear airbag
ear airbag
If, aTer consideration of the no tes and instruc-
tions in this Owner's Manual, you deem the addi-
tional occupant pr otection pr ovided bythere ar
airbag unnecessar y,there ar airbag can be disa-
bled. The
rear airbags should be disabled in thefo llo w-
ing situations in particular:
R Arear wa rd-facing child restraint system is
secu red on the leT or right rear seat.
R The person in there ar seat, forex ample a
ch ild, cannot sit in the cor rect seat position.
Their feet and legs are po tential lyin the
deployment area of there ar airbag.
R Due tothe position of the front seats, an
occupant's legs, forex ample, are in the
deployment area of there ar airbag.
R Objects are stored behind the front seat which
are in the deployment area of there ar airbags.
Yo u can disable or enable there ar airbag via the
multimedia system (/ page 63). F F
unction of t
unction of t he REAR SEA
he REAR SEA T AIRBA
T AI RBA G indicat
G indicat or
or
lam
lam ps
ps l
LeT rear seat
k Right rear seat
When the ignition is switched on, a self-test is per-
fo rm ed during which the REAR SEAT AIR BAG ON
and OFF indicator lamps light up simultaneousl y.62
62
Occupant saf
ety

ATer
the self-test, the status of there ar airbag for
th e leT and right rear seat is displ ayed via the
REAR SEAT AIR BAG indicator lamps:
R ON is lit:
ON is lit: there ar airbag may depl oyduring an
accident.
The indicator lamp goes out aTer appr ox-
imately 60 seconds.
R ON and OFF ar ON and OFF ar e
eo.:
o.: there ar airbag may
depl oyduring an accident.
R OFF is lit:
OFF is lit: there ar airbag is disabled. It will
th en not be deplo yed in theev ent of an acci-
dent.
If th e REAR SEAT AIR BAG ON indicator lamp is
o., only the REAR SEAT AIR BAG OFF indicator
lamp sho ws the status of there ar airbag. The
REAR SEAT AIR BAG OFF indicator lamp may be lit
continuously or be o.. Enabling/disabling t
Enabling/disabling t
he r
he rear airbag via t
ear airbag via t he multi-
he multi-
media syst
media syst em
em
Multimedia system:
4 © 5
Settings 5
Vehicle
5 Occupant protection #
Enable or disable the desired rear airbag
under Rear airbags . PRE-S
PRE-S
AFE
AFE®
®
syst
syst em
em F
F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
(anticipat
(anticipat or
ory occupant
y occupant
pr ot
pr otection)
ection) PRE-SAFE
®
is able todetect cer tain critical driv-
ing situations and implement pre-em ptive meas-
ures toprotect theve hicle occupants.
PRE-SAFE ®
can implement thefo llowing meas-
ures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Closing the side windo ws.
R V
Vehicles wit
ehicles wit h sliding sunr
h sliding sunr oof:
oof:closing the slid-
ing sunroof. R
V
Vehicles wit
ehicles wit h memor
h memory function:
y function: movingthe
front passenger seat toa more favo urable seat
position.
R V
Vehicles wit
ehicles wit h memor
h memory function in t
y function in t he r
he rear
ear
com
com par
partment:
tment: moving the outer rear seats to
a more favo urable seat position.
R V
Vehicles wit
ehicles wit h multicont
h multicont our seat
our seat:
:increasing the
air pressure in the seat side bolsters of the
seat backrest.
R PRE-SAFE ®
Sound: pr ovided that the multime-
dia system is switched on, generating a brief
noise signal tostimula tethe innate pr otective
mechanism of a person's hearing.
* NO
NOTE
TEDamage caused byobjects in the
fo ot we ll or behind the seat The automatic adjustment of
the seat position
may result in damage tothe seat and/or the
object. #
Stow objects in a suitable place. Occupant saf
ety
63
63

R
R
e
ev
ver
er sing t
sing t he PRE-S
he PRE-S AFE
AFE®
®
syst
syst em measur
em measur es
es If an accident did not occur,
the pre-em ptive
measures that we re ta ken are reve rsed.
Yo u will need toper form certain settings yourself. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. F
F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
PL
PL US (anticipat
US (anticipat or
ory occu-
y occu-
pant pr ot
pant pr otection plus)
ection plus) PRE-SAFE
®
PLUS can de tect cer tain impacts, par-
ticular lyan imminent rear impact, and take pre-
em ptive measures toprotect theve hicle occu-
pants. These measures cann otnecessarily pre-
ve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher 0ashing frequency. R
Increasing brake pressure when theve hicle is
stationar y.This brake application is cancelled
automatically when theve hicle pulls away.
If an accident did not occur, the pre-em ptive
measures that we re ta ken are reve rsed.
Syst
Syst em limits
em limits
The system will not initiate any action in thefo l-
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact
The system will not initiate any braking application
in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space while
using Active Parking Assist F F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
Im
Im pulse Side
pulse Side If an imminent side impact is de
tected, PRE-
SA FE®
Impulse Side can pre-em ptively mo vethe
front seat vehicle occupant's upper body towa rds
th e centre of theve hicle. It does this by rapidly
in0ating an air cushion in the outer seat side bol-
ster of the seat backrest on the side on which the
impact is anticipated. This increases the distance
between the door and theve hicle occupant.
V
V ehicles wit
ehicles wit h E-A
h E-ACTIVE BOD
CTIVE BOD Y C
Y CONTR
ONTR OL:
OL:the body
can also be slightly raised.
If PRE-SAFE ®
Impulse Side has been deplo yed or
is faulty, thePRE-SAFE impulse side inoperative
See Owner's Manual (/page 496) display mes-
sage appears. A
A
ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident
Depending on the type and se verity of the acci-
dent, and depending on theve hicle's equipment,
th efo llowing measures can be implemented, for
ex ample:
R automatic braking (post-collision brake) 64
64
Occupant saf
ety

R
activating the hazard warning lights
R triggering an automatic emer gency call
(/ page 411)
R switching o. the engine
To start theve hicle again, switch theve hicle
o. and on once more (/ page 211). Depend-
ing on the type and se verity of the accident,
yo u may no longer be able tostart theve hicle.
R switching o. the fuel supply
R v
vehicles wit
ehicles wit h h
h hybr
ybr id dr
id dr iv
ive:
e: switching o. the
hy brid system and high-voltage on-board elec-
trical system
R unlocking theve hicle doors
R lowe ring the side windo ws
R displaying the emer gency guide in the central
display
R switching on the interior lighting
F
F unction of t
unction of t he pos
he post-collision brt-collision br ake
ake
Depending on the accident situation, the post-col-
lision brake can minimise the se verity of a fur ther
collision or even avo id it. If an accident is de
tected, the post-collision brake
can implement automatic braking. When theve hi-
cle has come toa standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking bytaking
th efo llowing actions:
R braking more strongly than automatic braking
R fully depressing the accelerator pedal with
fo rce Saf Saf
el
ely tr
y tr anspor
anspor ting c
ting childr
hildren in t
en in t he v
he vehicle
ehicle Alw
ay
Alw ays observ
s observ e when c
e when c hildr
hildren ar
en ar e trav
e tr avelling in t
elling in t he
he
v
v ehicle
ehicle %
Also strictly obser vethe saf ety no tesfo rthe
speci/c situation. In this wa yyo u can recog-
nise po tential risks and avoid dangers if chil-
dren are tr avelling in theve hicle
(/ page 66).
Be dilig
Be dilig ent
ent
Bear in mind that negligence when securing a
ch ild in thech ild restraint system ma y haveseri- ous conse
quences. Alw ays be dili gent in securing
a ch ild carefully before every journe y.
Ne ver allow babies and children totrave l sitting
on the lap of ano ther vehicle occupant.
To impr oveprotection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obser vethefo l-
lowing information:
R Always secure thech ild in a child restraint sys-
te m suitable forth is Mercedes-Benz vehicle.
R The child restraint system must be appropria te
to the age, weight and size of thech ild.
R The vehicle seat must be suitable for /tting a
ch ild restraint system (/ page 70).
Ac cident statistics show that children secured on
th ere ar seats are generally safe rth an children
secured on the front seats. Forth is reason,
Mercedes-Benz st rongly advises that you /t a
ch ild restraint system toare ar seat. Occupant saf
ety
65 65

The g
The g
ener
eneric t
ic ter
erm c
m c hild r
hild r es
estrtraint syst
aint syst em
em
The generic term child restraint system is used in
th is Owner's Manual. A child restraint system is,
fo rex ample:
R a baby car seat
R are ar wa rd-facing child seat
R afo rw ard-facing child seat
R ach ild booster seat with a backrest and seat
belt guide
Mercedes-Benz recommends using a child
booster seat with a backrest.
The child restraint system must be appropria te to
th e age, weight and size of thech ild.
Observ Observ e law
e laws and leg
s and leg al r
al req
equir
uir ements
ements
Alw ays obser vethe legal requ irements when
using a child restraint system in theve hicle.
Make sure that thech ild restraint system is
appro ved in accordance with theva lid test speci/-
ca tions and guidelines. Further information can
be obtained at a quali/ed specialist workshop.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre forth is purpose. Onl
Onl
y use appr ov
y use appr oved ced c hild r
hild r es
estrtraint syst
aint syst ems
ems
Only child restraint systems that meet thefo llo w-
ing UNECE standards are permitted for use in the
ve hicle:
R UN-R44
R UN-R129 (i-Size child restraint systems)
In fo rm ation on child restraint system appro val
categories and de tails on the appr oval label on
th ech ild restraint system (/ page 71). Det
Det
ecting r
ecting r isk
isks,av
s, avoiding dangoiding dang er
er Secur
Secur
ing syst
ing syst ems f
ems for c
or child r
hild r es
estrtraint syst
aint syst ems in
ems in
t
t he v
he v ehicle
ehicle
Only use thefo llowing securing systems forch ild
re straint systems:
R the ISOFIX or i-Size securing rings
R theve hicle's seat belt system
R theTo pTe ther anchorages
Fi tting an ISOFIX or an i-Size child restraint sys-
te m is prefer red. Simply attaching
tothe securing rings on theve hi-
cle can reduce therisk of /tting thech ild restraint
system incor rectl y.
When securing a child with the integ rated seat
belt of the ISOFIX or i-Size child restraint system,
al wa ys comply with the permissible gross weight
fo rth ech ild and child restraint system
(/ page 74).
A
A dv
dv ant
ant ag
age of a r
e of a r earw
earwar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint sy
aint sy s-
s-
t
t em
em
It is preferable totransport a baby or a small child
in a suitable rear wa rd-facing child restraint sys-
te m. In this case, thech ild sits in the opposite
direction tothe direction of tr avel and faces bac k-
wa rds.
Babies and small children ha vecomparatively
we ak neck muscles in relation tothe size and
we ight of their head. The risk of injury tothe cer-
vical spine during an accident can be reduced in a
re ar wa rd-facing child restraint system. 66
66
Occupant sa
fety

Alw
ay
Alw ays secur
s secur e a c
e a child r
hild r es
estr
traint syst
aint syst em corr
em correctly
ectly &
W
WARNING
ARNING Risk of injury or death due to
incor rect ins tallation of thech ild restraint
system
The child can then not be pr otected or
re strained as intended. #
Be su retocomply with the manufactur-
er's installation inst ructions forth ech ild
re straint system and its co rrect use. #
Make sure that the entire base of the
ch ild restraint system al ways rests on
th e sitting sur face of the seat. #
Never place objects (e.g. cushions)
under or behind thech ild restraint sys-
te m. #
Use child restraint systems on lywith the
original co ver designed forth em. #
Alwaysre place damaged co vers with
ge nuine co vers. &
W
WARNI NG
ARNI NGRisk of injury or dea thdue to
unsecured child restraint systems in the
ve hicle
If th ech ild restraint system is incor rectly /tted
or not secured, it can come loose.
The child restraint system could be 0ung
around and hit vehicle occupants. #
Always ins tallch ild restraint systems co r-
re ctl y,even when not in use. #
Always comply with thech ild restraint
system manufactu rer's installation
inst ructions. R
Always obser vethech ild restraint system
manufactu rer's installation and operating
inst ructions as well as theve hicle-speci/c
information:
- Fitting the ISOFIX or i-Size child restraint
system tothere ar seat (/ page 74).
- Securing thech ild restraint system wi th
th e seat belt on there ar seat
(/ page 81). -
Securing thech ild restraint system wi th
th e seat belt on the front passenger seat
(/ page 83). Obser vethe speci/c
inst ructions forth ere ar wa rd-facing and
fo rw ard-facing child restraint systems
(/ page 82).
If th e front passenger seat is occupied,
ensure, bo thbefore and during the jour-
ne y,that the status of the front passenger
airbag is cor rect forth e cur rent situation
(/ page 58).
R Obser vethewa rning labels in theve hicle inte-
ri or and on thech ild restraint system.
R Also secu reTopTe ther if present.
Do no Do no t modify t
t modify t he c
he child r
hild r es
estrtraint syst
aint syst em
em &
W
WARNING
ARNING Risk of injury due tomodi/ca-
tions tothech ild restraint system
The child restraint system can no longer func-
tion prope rly. This poses an increased risk of
injur y. #
Never modify a child restraint system. Occupant sa
fety
67
67

#
Only a1x accessories which ha vebeen
specially appr ovedfo rth is ch ild restraint
system bythech ild restraint system's
manufactu rer. Mercedes‑Benz
recommends Mercedes-Benz
care products for cleaning child restraint systems
re commended byMercedes-Benz.
Onl
Onl y use c
y use c hild r
hild res
estrtraint syst
aint syst ems whic
ems whic h ar
h are in
e in
pr
pr oper w
oper w or
orking condition
king condition &
W
WARNI NG
ARNI NGRisk of injury or dea thcaused
by the use of damaged child restraint sys-
te ms
Child restraint systems or their reta ining sys-
te ms that ha vebeen subjected tostress in an
accident ma y not be able toper form their
intended pr otective function.
It may be the case that thech ild cannot be
proper ly restrained. #
Always immediately replace child
re straint systems that ha vebeen dam-
aged or in volved in an accident. #
Have the securing systems forth ech ild
re straint systems checked at a quali/ed
specialist workshop before ins talling a
ch ild restraint system again. A
A
v
void dir
oid dir ect sunlight
ect sunlight &
W
WARNING
ARNING Risk of bu rns when thech ild
seat is exposed todirect sunlight
If th ech ild restraint system is exposed to
direct sunlight or heat, parts could heat up.
Children could su.er burns from these parts,
particular lyon me tallic parts of thech ild
re straint system. #
Always make sure that thech ild restraint
system is not exposed todirect sunlight. #
Protect thech ild restraint system wi th a
blank et,fo rex ample. #
Ifth ech ild restraint system has been
ex posed todirect sunlight, allow it to
cool before securing a child into it. #
Never lea vechildren unattended in the
ve hicle. Observ Observ
e when st
e when st opping or par
opping or par king
king &
W
WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. 68
68
Occupant saf
ety

#
Keep theve hicle key out of there ach of
ch ildren. &
W
WARNING
ARNING Risk offatal injury due toexpo-
sure toextreme heat or cold in theve hicle
If persons, particular lych ildren, are subjected
to prolonged exposure tointense heat or cold,
th ere is a risk of se vere injury or even death. #
Never lea vepersons, particular lych il-
dren, unattended in theve hicle. Ov
Ov
er
ervie
vie w of r
w of r ecommended c
ecommended c hild r
hild res
estr
traint syst
aint syst ems
ems %
Further information on the cor rect child
re straint system can be ob tained at a quali-
/ed specialist workshop. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre forth is purpose.
V
V ehicles wit
ehicles wit h belt airbags:
h belt airbags: When securing a
child in a child restraint system
on an ou terre ar seat, it is essential toobser vethe
fo llowing inst ructions:
R Weight category 0, 0+ or I: thech ild restraint
system must be installed on the ISOFIX or i-
Size child seat anchor.
R Weight category II/III: only use the appr oved
KIDFIX XP and AMG KIDFIX XP child seats.
R Secure a rear wa rd-facing child restraint sys-
te m with the ISOFIX or the i-Size child seat
anchor.
R Secure a forw ard-facing child restraint system
wi th th e ISOFIX or the i-Size child seat anchor
and, if present, theTo pTe ther anchorage.
R Obser vethe no tes in "Belt airbag in rear seat
belt" (/ page 50). Secur
Secur
ing wit
ing wit h ISOFIX
h ISOFIX
W
W eight cat
eight cat egor
egory 0+ (up t
y 0+ (up t o 13 k
o 13 kg and up to
g and up to
appro
appro x. 15 mont
x. 15 mont hs)
hs) T
T
ype
ype 1
1
B
BAB
AB Y S
Y S AFE plus
AFE plus
Size catego ry E
Appro valE 1 04 301 146
Order number 2
B6 6 86 8224
1 Manufacturer: Britax Römer .2 With colour code 9H95. W
W
eight cat
eight cat egor
egory I (9 t
y I (9 t o 18 k
o 18 kg and fr g and fr om appro
om appro x-
x-
imat
imat el
ely 9 mont
y 9 mont hs t
hs to 4 y
o 4 y ear
ears)
s) T
T
ype
ype 1
1
DUO plus
DUO plus
Size categor yB1
Appro valE 1 04 301 133
Order number 2
A 000 970 43 02
1 Manufacturer: Britax Römer .2 With colour code 9H95. Occupant saf
ety
69
69