ECU MERCEDES-BENZ S-CLASS SALOON 2022 Owners Manual

Manufacturer: Dunlop
Tech GmbH
Ad dress: O.enba cher Landstrasse. 8, 63456
Hanau
Au thorised representative: IMS dept.
Date: Mar ch2020
Signature: IMS-AE, IMS-AE-L Diagnos Diagnostics connection
tics connection
The diagnostics connection is a tech nical inter-
fa ce in theve hicle. It is used, forex ample, in the
cont ext of repair and maintenance workor for
re ading out vehicle data in a specialist workshop.
Diagnostic devices should therefore only be con-
nected in a quali/ed specialist workshop. &
W
WARNING
ARNING Risk of accident due tocon-
necting devices tothe diagnostics con-
nection
If yo u connect devices tothe diagnostics con-
nection of theve hicle, the function of vehicle
systems and operating saf ety may be
impaired. #
For saf etyre asons, werecommend that
yo u only use and connect products
appr ovedby yo ur Mercedes-Benz service
centre. &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. *
N NOOTE
TE Battery discharging from using devi-
ces connected tothe diagnostics connec-
tion Using devices at
the diagnostics connection
drains the batter y. #
Check thech arge leve l of the batter y. #
Ifth ech arge leve l is lo w,charge the bat-
te ry, e.g. bydriving a considerable dis-
ta nce. Please also no
tethe information about the 12 V
battery and short-dis tance trips in the "Driving
and Parking" chap ter (/ page 203). General no
tes
35
35

Online ser
Online ser
vices
vices W
W
ir
ireless ne
eless ne tw
twor
ork connection
k connection
If yo ur vehicle has a wireless network connection,
it enables data tobe exch anged between your
ve hicle and additional systems. The wireless net-
wo rkconnection is made possible bytheve hicle's
ow n transmitter and receiver or bya mobile end
device that you ha vebrought into theve hicle, for
ex ample, a smartphone. Online functions can be
used via the wireless network connection. This
includes online services and applications/apps
pr ov ided toyouby the manufacturer or by other
pr ov iders.
Manuf Manuf actur
acturer's ser
er's ser vices
vices
Re garding the manufacturer's online services, the
individual functions are described bythe manu-
fa cturer in a suitable place, forex ample, in the
Owner's Manual or on the manufacturer's web-
site, where there leva nt data pr otection informa-
tion is also given. Personal data may be used for
th e pr ovision of online services. Data are
ex ch anged via a secure connection, such as the
manufacturer's designated IT systems. Any per-
sonal data which are collected, processed and used,
other than forth e pr ovision of services, is
done so exclusively on the basis of legal permis-
sion. This is the case, forex ample, for a legally
prescribed emer gency call system, a cont ractual
ag reement or when consent has been given.
Yo u can ha veservices and functions, some of
which are subject toafe e, activated or deactiva-
te d. This excludes legally prescribed functions and
services, such as an emer gency call system.
Thir Thir d par
d par ty ser
ty ser vices
vices
If yo u use online services from other pr oviders
(third parties), these services are there sponsibil-
ity of the pr ovider in question and subject tothat
pr ov ider's data pr otection conditions and term s of
use. As a general rule, the manufacturer has no
in0uence on the content exch anged.
Fo rth is reason, when services are pr ovided by
th ird parties, please ask the service pr ovider in
qu estion for information about the type, extent
and purpose of the collection and use of personal
data. Dat
Dat
a pr ot
a pr otection r
ection r ights
ights Depending on
your country or the equipment and
ra nge of functions of your vehicle as well as the
services you use and the services on o.er, you
are entitled todi.erent data pr otection rights.
Fu rther information on data pr otection and your
data pr otection rights can either be found on the
manufacturer's website or you will receive this
information as part of theva rious services and
service o.ers. There you will also /nd the contact
information forth e manufacturer and its data pro-
te ction o1cers.
At awo rkshop, forex ample, with the support of a
specialist and possibly for a fee, you can ha ve
data read out which is stored only locally in the
ve hicle. Cop
Cop
yr
yright
ight
Information on licences for free and open-source
soTware used in your vehicle can be found on the
data car rier in your vehicle document wallet and
with updates on thefo llowing website:
https://www.mercedes-benz.com/opensource General no
tes
41
41

R
R
es
estr traint syst
aint syst em
em Pr
ot
Pr otection pro
ection pro vided b
vided by t
y the r
he r es
estrtraint syst
aint syst em
em The
restraint system includes thefo llowing com-
ponents:
R Seat belt system
R Airbags
R Child restraint system
R Child seat secu ring systems
The restraint system can help preve nttheve hicle
occupants from coming into contact with parts of
th eve hicle interior in theev ent of an accident. In
th eev ent of an accident, there straint system can
also reduce thefo rc es towhich theve hicle occu-
pants 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, seat belt tensioners
and/or airbags supplement the pr otection o.ered
by a cor rectly wornseat belt. Seat belt tensioners
and/or airbags are not deplo yed in every acci-
dent. In order
forth ere straint system toprov ide the
intended le vel of pr otection, each vehicle occu-
pant must obser vethefo llowing information:
R Fasten seat belts co rrectl y.
R Sit in an almost up right seat position with their
back against the seat backrest.
R Sit with their feet resting on the 0oor, if possi-
ble.
R Always secure persons under 1.50 m tall in an
additional restraint system suitable for
Mercedes-Benz vehicles.
Ho wever,no system available today can com-
ple tely eliminate injuries and fatalities in every
accident situation. In particular, the seat belt and
airbag generally do not pr otect against objects
penetrating theve hicle from the outside. It is also
not possible tocomple tely rule out therisk of
injury caused bythe airbag deploying. Limit Limit
ations of t
ations of t he prot
he pr otection pro
ection pro vided b
vided by t
y the
he
r
r es
estr traint syst
aint syst em
em &
W
WARNING
ARNING Risk of injury or death due to
modi/cations tothere straint system
Ve hicle occupants may no longe r be protected
as intended if alterations are made tothe
re straint system. #
Never alter the parts of there straint sys-
te m. #
Neverta mp er with the wiring or any elec-
tronic component parts or their soT-
wa re. If it is necessary
tomodify theve hicle toaccom-
modate a person with disabilities, contact a quali-
/ed specialist workshop.
Mercedes-Benz recommends that you use driving
aids which ha vebeen appr ovedfo ryo ur vehicle by
Mercedes-Benz. 42
42
Occupant safe
ty

R
The shoulder section of the seat belt should
not touch your neck nor be routed under your
arm or behind your bac k.
R Avoid wearing bulky clo thing, e.g. a winter
coat.
R Push the lap belt down as far as possible
across your hips and pull tight with the shoul-
der section of the belt. Neverro ute the lap
belt across your abdomen.
Pregnant women must also take particular
care with this.
R Neverro ute the seat belt across sharp, poin-
te d, abrasive or fragile objects.
R Only one person should use each seat belt at
any one time.
R Never secure objects with a seat belt if the
seat belt is also being used byone of theve hi-
cle's occupants.
Also ensu rethat no objects, e.g. a cushion,
are ever placed between a person and the
seat. If
ch ildren are tr avelling in theve hicle, be sure to
obser vethe inst ructions and saf ety no tes on
"Child ren in theve hicle" (/ page 63).
Alw ays obser vethe inst ructions for loading the
ve hicle when securing objects, lug gage or loads
(/ page 144). Limit Limit
ations of t
ations of t he prot
he pr otection pro
ection pro vided b
vided by t
y the seat
he seat
belt
belt &
W
WARNING
ARNING Risk of injury or death due to
incor rect seat position
The seat belt will not o.er the intended le vel
of pr otection if you ha venot mo vedth e seat
backrest toan almost vertical position.
In particular, you may slip under the seatbelt
and injure yourself. #
Adjust the seat proper lybefore begin-
ning your journe y. #
Always ensu rethat the seat backrest is
in an almost vertical position and that
th e shoulder section of your seat belt is ro
uted across the centre of your shoul-
der. &
W
WARNING
ARNING Risk of injury or death when
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. Occupant saf
ety
45
45

Seat belt w
Seat belt w
ar
arning function f
ning function f or t
or the dr
he dr iv
iver and fr
er and front ont
passeng
passeng er
er The
ü seat belt warning lamp in the driver's
display is a reminder that all vehicle occupants
must weartheir seat belts cor rectl y.
In addition, a warning tone may sound.
As soon as the driver and front passenger fasten
th eir seat belts, the seat belt warning goes out. F
F
unction of t
unction of t he r
he rear seat belt st
ear seat belt st atus display
atus display The
rear seat belt status display is onlyavailable
fo r cer tain countries. When
theve hicle is switched on, there ar seat
belt status displ ayinforms youfo r a cer tain
amount of time which rear seat belt is not fas-
te ned.
The status of there ar seat belt can be recognised
by the colour of the symbol in the driver's displa y:
R Grey:th e seat belt tongue of a rear seat belt is
not engaged in the seat belt buckle of the cor-
re sponding seat.
R Green: the seat belt tongue of a rear seat belt
is engaged in the seat belt buckle of the cor re-
sponding seat.
Every vehicle occupant must alw aysfa sten
th eir seat belt cor rectly before starting a jour-
ne y.
R Red: a vehicle occupant in there ar passen ger
compartment has released the seat belt
buckle using there lease button and may not
be proper lysecured.
If a vehicle occupant unfastens a seat belt in the
re ar, there ar seat belt status display appears
again.
In addition, a warning tone may sound. Airbags Airbags
Ov
Ov
er
ervie
vie w of airbags
w of airbags Driver's/front passenger seat:
1 Knee airbag
2 Driver's airbag
3 Front passenger airbag
4 Window airbag
5 Side airbag
6 Centre airbag 1
1) Only for cer tain countries. Occupant saf
ety
49
49

V
V
ehicles wit
ehicles wit h r
h rear airbag:
ear airbag: always obser vethe
information on there ar airbag when there ar
seat is occupied (/ page 57). Thevehicle
occupants should sit as far back from the air-
bags as possible and keep an equal distance
to them.
R Only hold the steering wheel bythe steering
wheel rim. This allo ws the airbag tobe fully
deplo yed.
R Always lean against the seat backrest when
th eve hicle is in motion. Do not lean forw ards
or against the door or side windo w.You may
ot herwise be in the deployment area of the
airbags.
R The occupants must alw ayske ep their feet on
th e 0oor. Do not put your feet on the cockpit,
fo rex ample. Your feet may otherwise be in the
deployment area of the airbag.
V
V ehicles wit
ehicles wit h r
h rear airbag:
ear airbag: always obser vethe
information on there ar airbag when there ar
seat is occupied (/ page 57).
R Ifch ildren are tr avelling in theve hicle, obser ve
th e additional no tes (/ page 63).
R Always st owand secure objects cor rectl y. Objects in
theve hicle interior may pr event an air-
bag from functioning cor rectl y.Each vehicle occu-
pant must alw ays make sure of thefo llowing in
particular:
R There are no people, animals or objects
between theve hicle occupants and an airbag.
V V ehicles wit
ehicles wit h r
h rear airbag:
ear airbag: also observethe
information on there ar airbag (/ page 57).
R There are no objects between the seat, door
and door pillar (B-pillar).
R There are no hard objects, e.g. coat hangers,
hanging on thegr ab handles or coat hooks.
R There are no accessories, such as mobile navi-
gation devices, mobile phones or cup holders,
within the deployment area of an airbag, e.g.
on the cockpit, on the door, on the side win-
dow or on the side trim.
In addition, no connecting cables, tensioning
straps or retaining straps must be routed or
attached totheve hicle within the deployment
area of an airbag. Alw ays comply with the
accessory manu facturer's ins tallation inst ruc-
tions and, in particular, the no tes on suitable
places for installation. R
There are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place. Limit Limit
ations of t
ations of t he prot
he pr otection pro
ection pro vided b
vided by airbags
y airbags &
W
WARNING
ARNING Risk of injury due tomodi/ca-
tions tothe co ver of an airbag
If yo u modify the co ver of an airbag or a1x
objects such as stic kers to it,the airbag may
no longer function cor rectl y. #
Never modify the co ver of an airbag and
do not a1x objects toit. The installation location of an airbag is identi/ed
by
the AIRB AGsymbol (/ page 49).
Objects in the deployment area of an airbag may
pr ev ent the airbag from functioning cor rectl y. 52 52
Occupant saf
ety

&
W
WARNI NG
ARNI NGRisk of injury from objects in
th e deployment area of an airbag
Objects in the deployment area of an airbag
can hinder or pr eventthe cor rect deployment
of the airbag.
The airbag may then deploy in an uncontrolled
manner and may even cause additional inju-
ri es totheve hicle occupants bydeploying.
This may be the case in particular if the airbag
is integ rated into the seat. #
Always st owand secure objects cor-
re ctl y. #
Before commencing your journe y,make
sure that no objects are st owed in the
deployment area of an airbag. Obser
vethe no tes on loading theve hicle
(/ page 144). When triggered, the centre airbag
deplo ysbetween the front seats (/ page 49). &
W
WARNING
ARNING Risk of injury or death due to
th e use of unsuitable seat co vers
Due tounsuitable seat co vers,th e airbags
cannot pr otect vehicle occupants as intended.
In addition, the operation of the automatic
front passenger airbag shuto. could be
re stric ted. #
You should only use seat co vers that
ha ve been appr oved forth e cor respond-
ing seats byMercedes-Benz. &
W WARNI NG
ARNI NGRisk of injury due tomalfunc-
tioning sensors in the door
The function of the airbags can be impaired
due tomodi/cations or incor rect wo rkper-
fo rm ed on the doors or door trim, or if the
doors are damaged. #
Never modify the doors or parts of the
doors. #
Always ha veworkon the doors or door
trim car ried out at a quali/ed specialist
wo rkshop. &
W
WARNING
ARNING Risk of injury due todeplo yed
airbag
A depl oyed airbag no longer o.ers any pr otec-
tion. #
Have theve hicle towe dto a quali/ed
specialist workshop in order tohave the
deplo yed airbag replaced. Ha
ve deplo yed airbags replaced immediatel y. S
S
t
tatus of t
atus of t he fr
he front passeng
ont passeng er fr
er front airbag
ont airbag F
F
unction of t
unction of t he aut
he automatic fr
omatic fr ont passeng
ont passeng er airbag
er airbag
shut
shut o.
o.
The automatic front passen ger airbag shuto. is
able todetect whe ther the front passenger seat is
occupied bya person or a child restraint system.
The front passenger airbag is enabled or disabled
acco rdingl y. Occupant saf
ety
53 53

F
F
unction of t
unction of t he P
he PASSEN
ASSEN GER AIR BA
GER AIR BAG indicat
G indicat or
or
lam
lam ps
ps Self-t
Self-t
es
est of autt of aut omatic fr
omatic fr ont passeng
ont passeng er airbag shut-
er airbag shut-
o.
o. When theve hicle is switched on, a self-test is per-
fo rm ed during which the two PASSENGER AIR
BAG ON and OFF indicator la mps light up simul ta-
neous ly. The status of
the front passenger airbag is dis-
pla yed via thePA SSENGER AIR BAG indicator
la mp s aTer the self-test:
R ON is lit:
ON is lit: the front passenger airbag may
deploy during an accident.
The indicator lamp goes out aTer 60 seconds.
R ON and OFF ar ON and OFF ar e no
e not lit:
t lit: the front passenger
airbag may deploy during an accident.
R OFF is lit:
OFF is lit: the front passenger airbag is disa-
bled. It will then not be deplo yed in theev ent
of an accident.
If th ePA SSENGER AIR BAG ON indicator la mpis
o., only thePA SSENGER AIR BAG OFF indicator
la mp shows th e status of the front passenger air-
bag. The PASSENGER AIR BAG OFF indicator la mp
may be lit continuously or be o..
If th ePA SSENGER AIR BAG OFF indicator la mp
and the6 restraint system warning lamp light
up simultaneousl y,the front passenger seat may
not be used. Also in this case, do not /t a child
re straint system tothe front passenger seat. Ha ve
th e automatic front passenger airbag shuto. ch
ecked and repaired immediately at a quali/ed
specialist workshop.
S S t
tatus display
atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that the sta-
tus of the front passenger airbag is cor rect forthe
cur rent situation.
ATer
ATer /tting
/tting a r
a rearw
earw ar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::PA SSENGER AIR
BAG OFF must be lit continuously. &
W
WARNI NG
ARNI NGRisk of injury or dea thwhen
using a rear wa rd-facing child restraint sys-
te m while the front passenger airbag is
enabled
If yo u secure a child in a rear wa rd-facing child
re straint system on the front passenger seat
and thePA SSENGER AIR BAG OFF indicator
la mp is o., the front passenger airbag can
deploy in theev ent of an accident.
The child could be struck bythe airbag. Occupant saf
ety
55
55

#
Always ensu rethat the front passenger
airbag is disabled. The PASSENGER AIR
BAG OFF indicator la mpmust be lit. #
NEVER use a rear wa rd-facing child
re straint system on a seat wi than ENA-
BLED FRONT AIR BAG. This can result in
th e DEATH of or SERIOUS INJURY tothe
CHILD. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 79).
Depending on thech ild restraint system and the
stature of thech ild, thePA SSENGER AIR BAG OFF
indicator la mpmay be o.. In this case, do not /t
th ere ar wa rd-facing child restraint system tothe
front passenger seat.
Instead, /t there ar wa rd-facing child restraint sys-
te m to a suitable rear seat.
ATer ATer /tting
/tting a f
a forw
orw ar
ard-f
d-f acing c
acing c hild r
hild res
estr
traint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::depending on the
ch ild restraint system and the stature of thech ild,
PA SSENGER AIR BAG OFF may be lit continuously or be o.. Alw
ays obser vethefo llowing informa-
tion. &
W
WARNING
ARNING Risk of injury or death due to
incor rect positioning of thefo rw ard-facing
ch ild restraint system
If yo u secure a child in a forw ard-facing child
re straint system on the front passenger seat
th at is positioned too close tothe cockpit, in
th eeve nt of an accident, thech ild could:
R come into contact with theve hicle interior
if th ePA SSENGER AIR BAG OFF indicator
la mp is lit, forex ample
R be st ruck bythe airbag if thePA SSENGER
AIR BAG OFF indicator la mpis o.. #
Always mo vethe front passenger seat as
fa r back as possible and fully retract the
seat cushion length adjustment. While
doing so, alw ays make sure that the
shoulder belt st rap is cor rectly routed
from the seat belt outlet of theve hicle to
th e shoulder belt guide on thech ild
re straint system. The shoulder belt strap
must be routed forw ards and down wards from
the seat belt outlet. If necessar y,
adjust the seat belt outlet and the front
passenger seat accordingl y. #
Always comply with thech ild restraint
system manufactu rer's installation
inst ructions. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 79).
If a per If a per son is sitting on t
son is sitting on t he fr
he front passeng
ont passeng er seat
er seat::
PA SSENGER AIR BAG OFF may be lit continuously
or be o., depending on the person's stature.
A person on the front passenger seat must alw ays
obser vethefo llowing information:
R Ifth e front passenger seat is occupied byan
adult or a person with a stature cor responding
to that of an adult, thePA SSENGER AIR BAG
OFF indicator la mpmust be o.. This indicates
th at the front passenger airbag is enabled.
If th ePA SSENGER AIR BAG OFF indicator
la mp is lit continuousl y,an adult or person
with a build cor responding tothat of an adult
must not use the front passenger seat. 56
56
Occupant saf
ety

To
avo idrisks resulting from the deployment of
th e airbag, vehicle occupants on the outer rear
seats must obser vethefo llowing information in
particular:
R The occupants must alw ayske ep their feet on
th e 0oor. Otherwise, feet and legs of occu-
pants may be in the deployment area of the
re ar airbag.
If an occupant's feet cannot reach the 0oor,
th ey must adopt the cor rect seat position and
let their legs hang down the front of the seat.
R The feet or legs of the person on there ar seat
must not rest against the seat backrest of the
front seat, forex ample. Otherwise, their feet
and legs are in the deployment area of the
re ar airbag. This should be take n into consid-
eration especially if you are tr avelling with a
ch ild on there ar seat.
If yo u are tr avelling with a child in the leT or
ri ght rear seat, obser vetheve hicle-speci/c
information: (/ page 74). Also, alw ays
obser vethe no tes on rear wa rd-facing or
fo rw ard-facing child restraint systems on the
leT and right rear seats. R
Make sure that the co vers forth ere ar airbags
are not damaged.
R Obser vethe no tes on limi tations tothe pr otec-
tion provided byairbags (/ page 52). &
W
WARNING
ARNING Risk of injury due toa damaged
re ar airbag co ver
If a rear airbag co ver is damaged, there ar air-
bag can no lon ger function cor rectly and can
ev en cause additional injuries when deplo yed. #
Before starting a journe y,make sure the
co vers forth ere ar airbags are not dam-
aged. If a rear airbag co ver is damaged,
disable there ar airbag. Ha vea damaged
re ar airbag co verre placed at a quali/ed
specialist workshop as soon as possible. Yo
u can disable or enable there ar airbag via the
multimedia system (/ page 60).
Objects behind t
Objects behind t he fr
he front seat
ont seat
Objects in the deployment area of there ar air-
bags may pr event there ar airbags from function-
ing cor rectl y. &
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 144).
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. 58
58
Occupant saf
ety