2021 MERCEDES-BENZ S-CLASS SALOON LONG door lock

1
ßÜLoc ks/unlo cksth eve hicle →
93
2 Adjusts the seats electrically →
118
3 w Switches the seat heating on/o. →
137
4 s Switches the seat ventilation on/o. →
139
5 w Adjusts the front passenger seat from
th e driver's seat →
121
6 V Operates the memory function →
144
7 Í Operates the outside mir rors →
184
8 W Opens/closes theright side window →
104
9 W Opens/closes there ar right side window →
104 A
p Opens/closes the boot lid →
98
B D Rear-window roller sunblind →
113
C S Child saf ety lock forth ere ar side win-
do ws →
86
D Opens the door →
93
E W Opens/closes there ar leT side wind ow→
104
F W Opens/closes the leT side window →
104
G Adjusts the head restraints →
131
H Seat adjustment using the multimedia system →
135 At
a glance – Door operating unit and seat adjustment
17
17

T
T
ec
ec hnology Fr
hnology Freq
eq uency r
uency r angeT r
ang eT ransmission output/magne
ansmission output/magne tic
tic/eld
/eld s
strtr eng th
ength
Ne ar-/eld communication 13.553–13.567 MHz≤ 42 dBμA/m at 10m
Re mo teKeyless Entr y,Garage Door Opener, Tire
Pressure Monitoring 433 MHz (433.05–434.79 MHz)
≤ 10 mW ERP
Block Heater Remo teControl, Garage Door
Opener 868 MHz (868.0–868.6 MHz)≤
25 mW ERP
Block Heater Remo teControl, Garage Door
Opener 869 MHz (868.7–869.2 MHz)≤
25 mW ERP
Blue toot h, Kleer, RLAN, wireless Headphone s2.4 GHz ISM band (2400–2483.5 MHz) ≤ 100 mW EIRP
RLAN 5.1 GHz UNII-1 (5150–5250 MHz)≤ 25 mW EIRP
Interior Monitoring Radar, RLAN 5.8 GHz UNII-3 (5725–5875 MHz)≤ 25 mW EIRP
Re mo teKeyless Entr y7 .25 GHz UWB (6.0–8.5 GHz) ≤ -41.3 dBm/MHz EIRP mean ≤ 0 dBm/MHz
EIRP peak
76 GHz radar 76–77 GHz ≤ 55 dBm peak EIRP32 32
General no
tes

&
W
WARNI NG
ARNI NGRisk of injury or dea thwhen
additional restraint systems are not used
fo r persons with a smaller stature
Pe rsons under 1.50 m tall cannot wearthe
seat belt cor rectly without a suitable addi-
tional restraint system. #
Always secure persons under 1.50 m tall
in a suitable restraint system. &
W
WARNING
ARNING Risk of injur y or death due to
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 seat belt tensioners. #
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. &
W
WARNING
ARNING Risk of injury or death due to
damaged or modi/ed seat belts
Seat belts cannot pr ovide pr otection in thefo l-
lowing situations:
R the seat belt is damaged, has been modi-
/ed, is extremely dirty, blea ched or dyed
R the seat belt buckle is damaged or
ex tremely dirty
R modi/cations ha vebeen made tothe seat
belt tensioner, seat belt anchorage or seat
belt retractor
Seat belts may sustain non-visible damage in
an accident, e.g. due toglass splinters.
Modi/ed or damaged seat belts could tear or
fa il in theev ent of an accident, forex ample.
Modi/ed seat belt tensioners could acciden-
ta lly trigger or failto function as intended. #
Never modify the seat belt system, for
ex ample the seat belt, seat belt buckle,
seat belt tensioner, seat belt anchorage
and seat belt retractor. #
Make sure that the seat belts are undam-
aged, not wornand clean. #
Always ha vethe seat belts checked
immediately aTer an accident at a quali-
/ed specialist workshop. Mercedes-Benz
recommends that you use seat
belts which ha vebeen appr ovedfo ryo ur vehicle
by Mercedes-Benz. &
W WARNI NG
ARNI NGRisk of injury or dea thfrom
deplo yedpy rotech nic seat belt tensioners
Pyro tech nic seat belt tensioners that ha ve
been deplo yed are no longer operational and
are unable toper form their intended pr otec-
tive function. #
Therefore, ha vedeplo yedpy rotech nic
seat belt tensioners immedia tely
re placed at a quali/ed specialist work-
shop. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu ali/ed specialist workshop
aTer an accident. Occupant saf
ety
49
49

*
N
NO
OTE
TE Damage caused 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. #
Always ensu rethat an unused seat belt
is fully retracted. Inf
Inf
or
ormation on t
mation on t he belt airbag in t
he belt airbag in t he r
he rear seat belt
ear seat belt The BELTB
AGidenti/cation indicates that a rear
seat belt is equipped with a belt airbag.
When activated, the belt airbag increases the pro-
te cted area of theve hicle occupant's ribcage. &
W WARNING
ARNING Risk of injury or death dueto
use of a non-appr ovedch ild restraint sys-
tem
In an accident, the belt airbag may damage a
non-appr oved child restraint system or a child
re straint system which has not been appro ved
fo r use in conjunction with the belt airbag. Fo
r saf etyre asons, Mercedes-Benz recom-
mends that you only use a child restraint sys-
te m which has been tested and appro vedby
Mercedes-Benz in combination with a belt air-
bag. Information on
child restraint systems
(/ page 69). Ext Ext
ending/re
ending/re tr
tracting t
acting t he seat belt e
he seat belt e xt
xtender in t
ender in t he
he
r
r ear
ear The seat belt
extender forth ere ar seat helps you
fa sten your seat belt. #
Close the door.
The seat belt extender extends.
% Ifth eve hicle is equipped with the MBUX Inte-
ri or Assistant, the seat belt extender extends
when youre ach forth e seat belt tongue.
The seat belt extender retracts again in thefo llo w-
ing cases:
R the seat belt tongue is engaged in the seat
belt buckle R
the seat belt tongue is not engaged in the seat
belt buckle within a cer tain time
R there specti vedoor is opened
R a cer tain speed is exceeded aTer pulling away &
W
WARNI NG
ARNI NGRisk of injury or dea thdue to
an extended seat belt extender while the
ve hicle is in motion
If th e seat belt does not sit cor rectly on the
body, it cannot per form its intended pr otective
function. #
Always ensu rethat the seat belt
ex tender is retracted while theve hicle is
in motion. If
th e seat belt extender does not retract automat-
icall y,it can be retracted manuall y.To do so,
press the seat belt extender back as far as it will
go before starting theve hicle. Pressing the seat
belt extender back into place requ ires forc e.
% You can deactivate the seat belt extender.
Ac tivate thech ild saf ety lock forth ere ar side
wind ows (/ page 86). 50
50
Occupant saf
ety

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

#
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

Child safe
Child safe
ty locks
ty loc ks A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the c
he child safe
hild safe ty loc
ty lock f
k for
or
t
t he r
he r ear doors
ear doors &
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. #
Keep theve hicle key out of there ach of
ch ildren. &
W
WARNING
ARNING Dangertolife due toexposure
to extreme heat or cold in theve hicle
If people, particular lych ildren, are exposed to
ex treme temp eratures over an extended
period of time, there is a risk of serious injury
or danger tolife. #
Never lea vepersons, children in particu-
lar, unattended in theve hicle. &
W
WARNING
ARNING Risk of accident and injury due
to children leT unattended in theve hicle
If ch ildren are tr avelling in theve hicle, they
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 #
Always activate thech ild saf ety loc ks
installed if children are tr avelling in the
ve 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. There are
child saf ety loc ksforth ere ar doors and
th ere ar side wind ows.
Ve hicles forth e United Kingdom: obser vethe
impor tant safe ty notes in the "No tes on the addi-
tional door lock" section.
The child saf ety lock on there ar doors secures
each door separatel y.The doo rscan no longer be
opened from the inside. Occupant saf
ety
85 85