2019 MERCEDES-BENZ CLA COUPE ECU

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. #
Alw aysfit th efloor mats securely and
as prescribed in order toensure that
th ere is alw ays suf ficient room forthe
pedals. #
Do not use loose floor mats and do not
place floor mats on top of one ano ther. *
NO
TEBattery discharging from using
devices connected tothe diagnostics
connection 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
batter y,e.g. bydriving a considerable
dis tance. Connecting equipment
tothe diagnostics con‐
nection can lead toemissions monitoring infor‐
mation being reset, forex ample. This may lead
to theve hicle failing tomeet therequ irements of
th e next emissions inspection during the main
inspection. Qualified specialist
workshop
A qu alified specialist workshop has the neces‐
sary special skills, tools and qualifications to
cor rectly car ryout any necessary workon your
ve hicle. This particularly applies tosaf ety-re le‐
va nt wo rks.
Alw ays ha vethefo llowing workcar ried out on
yo ur vehicle at a qualified specialist workshop:
R safety-re leva nt wo rks
R service and maintenance work
R repair work
R modifications as well as ins tallations and
con versions
R workon electronic components Mercedes‑Benz
recommends a Mercedes‑Benz
service centre. Ve
hicle registration
Mercedes-Benz may ask its service centres to
car ryout tech nical inspections on cer tain vehi‐
cles. The quality or saf ety of theve hicle is
impr oved as a result of the inspection.
Mercedes-Benz can only inform you about vehi‐
cle checks if Mercedes-Benz has your registra‐
tion data.
It is possible that your vehicle has not yet been
re gis tere d in your name in thefo llowing cases:
R ifyo ur vehicle was not pur chased at an
authorised specialist dealer.
R ifyo ur vehicle has not yet been examined at
a Mercedes-Benz service centre.
It is advisable toregis teryo ur vehicle with a
Mercedes-Benz service centre.
Inform Mercedes-Benz as soon as possible
about any change in address or vehicle owner‐ General no
tes29

ship.
You can do this at a Mercedes-Benz service
centre, forex ample. Cor
rect use of theve hicle
If yo ure mo veany warning sticke rs,yo u or others
could failto recognise cer tain dangers. Lea ve
wa rning sticke rs in position.
Obser vethefo llowing information in particular
when driving your vehicle:
R the saf ety no tes in this manual
R tech nical da taforth eve hicle
R traf fic ru les and regulations
R laws and saf etyst andards per taining to
mo torve hicles Information on
the REACH regulation
EU and EFTA countries onl y:
The REA CHRegulation (Regulation (EC) No.
19 07 /2006, Article 33) stipulates an informa‐
tion obligation for subs tances of very high con‐
cern (SVHC). Daimler
AGis acting tothe best of its know ledge
to av oidthe use and application of these SVHCs
and toenable the cus tomer tohandle theses
subs tances sa fely.Ac cording tosupplier infor‐
mation and internal product information of
Daimler AG,SV HCs are known whi chare more
th an 0.1 percent byweight in individual products
of this vehicle.
Fu rther information can be found at:
R http://www.daimler.com/ reach
R http://www.daimler.com/ reach/en Implied
warranty
* NO
TEDama getotheve hicle arising
from violation of these operating instruc‐
tions. Damage
totheve hicle can arise from viola‐
tion of these operating instructions.
This damage is not co vered either bythe
Mercedes-Benz implied warranty or bythe
New‑ or Used- Vehicle Warrant y. #
Follow the instructions in these operat‐
ing instructions on proper operation of
yo ur vehicle as well as on possible vehi‐
cle damage. QR code
forre scue card
The QR code is secured in the fuel filler flap and
on the opposite side on the B-pillar. In theeve nt
of an accident, rescue services can use the QR
code toquickly find the appropriate rescue card
fo ryo ur vehicle. The cur rent rescue card con‐
ta ins the most impor tant information about your
ve hicle in a compact form , e.g. thero uting of the
electric lines.
Fu rther information can be obtained at http://
www.mercedes-benz.de/qr-code. Data
storage Electronic control units
Elect
ronic control units are fitted in your vehicle.
Some of these are necessary forth e safe opera‐
tion of your vehicle, while some assist you when 30
General no tes

or MP3 pla
yer). If this data is stored in theve hi‐
cle, you can dele teit at any time. This data is
sent tothird parties only at your requ est, partic‐
ularly when you use online services in accord‐
ance with the settings that you ha veselected.
Yo u can store or change con venience settings/
individualisations in theve hicle at any time.
Depending on the equipment, this includes, for
ex ample:
R settings forth e seat and steering wheel posi‐
tions
R suspension and climate control settings
R customisations such as interior lighting
If yo ur vehicle is accordingly equipped, you can
connect your smartphone or ano ther mobile end
device totheve hicle. You can cont rolth is by
means of the control elements integrated in the
ve hicle. Images and audio from the smartphone
can be output via the multimedia sy stem. Cer‐
tai n information is simultaneously trans ferred to
yo ur smartphone. Depending on
the type of integration, this can
include:
R general vehicle data
R position data
This allo wsyouto use selected apps on your
smartphone, such as navigation or music play‐
bac k.There is no fur ther interaction between the
smartphone and theve hicle; in particular, vehi‐
cle data is not directly accessible. Which type of
fur ther data processing occurs is de term ined by
th e pr ovider of the specific app used. Which set‐
tings you can make, if an y,depends on the spe‐
cific app and the operating sy stem of your
smartphone. Online services
Wire
less network connection
If yo ur vehicle has a wireless network connec‐
tion, it enables data tobe exc hanged between
yo ur vehicle and additional sy stems. The wire‐
less network connection is enabled via theve hi‐
cle's transmission and reception unit or via con‐
nected mobile end devices (e.g. sma rtphones). Online functions can be used via
the wireless
network connection. This includes online serv‐
ices and applications/apps pr ovided bythe man‐
ufacturer or other pr oviders.
Manu factu rer's se rvices
Re garding online services of the manufacturer,
th e individual functions are described bythe
manufacturer in a suita ble place (e.g. Owner's
Manual, website of the manufacturer) along with
th ere leva nt da taprotection information. Per‐
sonal data may be used forth e pr ovision of
online services. Data is exchanged via a secure
connection, e.g. the manufacturer's designated
IT sy stems. Personal data is collected, pro‐
cessed and used via the pr ovision of services
exc lusively on the basis of legal permissions or
with prior consent.
The services and functions (sometimes subject
to afe e) can usually be activated or deactivated.
In some cases, this also applies tothe entire
ve hicle's data connection. This excludes, in par‐
ticular, legally prescribed functions and services. 32
General no tes

Re
stra int sy stem Pr
otection bythere stra int sy stem The
restra int sy stem includes thefo llowing com‐
ponents:
R Seat belt sy stem
R Airbags
R Child restra int sy stem
R Child seat securing sy stems
The restra int sy stem can help pr eventtheve hi‐
cle occupants from coming into contact with
parts of theve hicle interior in theev ent of an
accident. In theev ent of an accident, the
re stra int sy stem can also reduce thefo rc es to
which 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, seat belt tensioners
and/or airbags supplement the pr otection
of fere dby a cor rectly wornseat belt. Seat belt
te nsioners and/or airbags are not depl oyed in
eve ryaccident. 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:
R Fasten seat belts cor rectl y.
R Sit in an almost up right seat position with
th eir back against the seat backrest.
R Sit with their feet resting on thefloor, if pos‐
sible.
R Alw ays secure persons under 1.50 m tall in
an additional restra int sy stem suitable for
Mercedes-Benz vehicles.
Ho wever,no sy stem available today can com‐
ple tely elimin ate injuries and fata lities 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 tocompl etely rule out the
ri sk of injury caused bythe airbag deploying. Limited pr
otection from there stra int sy stem &
WARNING Risk of inju ryor 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 #
Never alter the parts of there stra int
sy stem. #
Neverta mp er with the wiring or any
electronic component parts or their
software. If it is necessary
toadjust theve hicle toaccom‐
modate a person with disabilities, con tact a
qu alified specialist workshop.
Mercedes-Benz recommends that you on lyuse
driving aids which ha vebeen appr oved specifi‐
cally foryo ur vehicle byMercedes-Benz. 34
Occupant saf ety

#
Alw ays ensure that all vehicle occu‐
pants ha vetheir seat belts fastened
cor rectly and are sitting prope rly. Alw
ays obser vethe instructions about the cor‐
re ct driver's seat position and adjusting the
seats (/ page100).
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:
R The seat belt must not be twis ted and must
fi t tightly and snu gly across the body.
R The seat belt must be routed across the
centre of the shoulder and as low down
across the hips as possible.
R The shoulder section of the seat belt should
not touch your ne cknor be routed under
yo ur 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. Ne verro 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 may use each seat belt at
any one time. Infants and children must
ne ver tr ave l sitting on the lap of a vehicle
occupant.
R Never secure objects with a seat belt if the
seat belt is being used byone of theve hi‐
cle's occupants. Alw ays obser vethe instruc‐
tions for loading theve hicle when securing
objects, luggage or loads (/ page110).
Also ensure that no objects, e.g. a cushion,
are ever placed between a person and the
seat.
If ch ildren are tra velling in theve hicle, be sure to
obser vethe instructions and saf ety no tes on
"Children in theve hicle" (/ page51). Limitations of
the pr otection pr ovided bythe
seat belt &
WARNING Risk of inju ryor death due to
incor rect seat position
The seat belt does not of ferth e intended
le ve l of pr otection if you ha venot mo vedthe
seat backrest toan almost vertical position.
When braking or in theeve nt of an accident,
yo u could slide underneath the seat belt and
sus tain abdominal or neck injuries, forex am‐
ple. #
Adjust the seat proper lybefore begin‐
ning your journe y. #
Alw ays 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 cent reofyour shoul‐
der. Occupant saf
ety37

&
WARNING Risk of inju ryor death when
additional restra int sy stems are not used
fo r persons with a smaller build
Pe rsons under 1.50 m tall cannot wearthe
seat belt cor rectly wi thout a suitable addi‐
tional 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 sudden ly.#
Alw ays secure persons under 1.50 m
ta ll in a suitable restra int sy stem. &
WARNING Risk of inju ryor death due to
damaged or modified seat belts
Seat belts cann otprov ide pr otection in the
fo llowing situations:
R the seat belt is damaged, has been modi‐
fi ed, is extremely di rty, bleached or dyed R
the seat belt buckle is damaged or
ex treme lydirty
R modifications ha vebeen made tothe seat
belt tensioner, seat belt anchorage or
seat belt retractor
Seat belts may su stain non-visible damage in
an accident, e.g. due toglass splin ters.
Modified or damaged seat belts could tear or
fa il in theev ent of an accident, forex ample.
Modified belt tensioners may be depl oyed
unintentionally or not function as intended. #
Never modify the seat belts, seat belt
te nsioners, seat belt anchorages or
seat belt retractors. #
Makesure that the seat belts are not
damaged, are not wornand are clean. #
Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop. Mercedes-Benz
recommends that you on lyuse
seat belts that ha vebeen appr ovedfo ryo ur vehi‐
cle byMercedes-Benz. The sport seat is designed
forth est andard
th re e-point seat belt. If youfit a di fferent multi‐
point seat belt, e.g. sport or racing seat belt, the
re stra int sy stem cann otprov ide the intended
le ve l of pr otection.
Depending on the type of seat, there may be
openings in the seat backrest. These openings
ha ve no function. &
WARNING Risk of inju ryor fata l injury
due tomodified seat belt sy stems
If yo ufe ed seat belts thro ugh the opening in
th e seat backrest, the seat backrest may be
damaged or may even break in theeve nt of
an accident. #
Only use thest andard thre e-point seat
belt. #
Never modify the seat belt sy stem. 38
Occupant saf ety

Yo
ur feet may otherwise be in the deploy‐
ment area of the airbag.
R Ifch ildren are tr avelling in theve hicle,
obser vethe additional no tes (/ page51).
R Alw aysstow and secure objects cor rectl y.
Objects in theve hicle interior may pr event an
airbag from functioning cor rectl y.Each vehicle
occupant must alw ays make sure of thefo llow‐
ing in particular:
R There are no people, animals or objects
between theve hicle occupants and an air‐
bag.
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 the grab handles or coat hooks.
R There are no accessory parts, such as mobile
navigation devices, mobile phones or cup
holders, attached totheve hicle within the
deployment area of an airbag, e.g. on the
cockpit, on the door, on the side window or
on the side wall trim. In addition, no connecting cables,
tensioning
st ra ps or retaining stra ps must be routed or
attached totheve hicle within the deploy‐
ment area of an airbag. Alw ays comply with
th e accessory manufacturer's ins tallation
instructions and, in particular, the no tes on
suitable places for ins tallation.
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. Limited pr
otection from airbags &
WARNING Risk of inju rydue tomodifi‐
cations tothe airbag co ver
If yo u modify the co ver of an airbag or af fix
objects such as sticke rs to it,the airbag may
no longer function cor rectly. #
Never modify the co ver of an airbag and
do not af fix objects toit. The ins
tallation location of an airbag is identified
by the AIRB AGsymbol (/ page41). &
WARNING Risk of inju ryor death due to
th e use of unsuitable seat co vers
Uns uitable seat co vers can obstruct or pre‐
ve nt the deployment of the airbags integra‐
te d into the seats.
Consequentl y,the airbags cann otprotect
ve hicle occupants as they are designed to
do. In addition, the operation of the auto‐
matic front passenger airbag shutoff could
be restricted. #
You should on lyuse seat co vers that
ha ve been appr oved forth e cor respond‐
ing seats byMercedes-Benz. &
WARNING Risk of inju rydue tomalfunc‐
tions of the sensors in the door panelling
Sensors tocontrol the airbags are located in
th e doors. Modifications or worknot per‐
fo rm ed cor rectly tothe doors or door panel‐
ling, as well as damaged doors, can lead to
th e function of the sensors being impaired.
The airbags might therefore not function
proper lyany more. Occupant saf
ety43

Fu
nction of thePA SSENGER AIR BAG indica‐
to r lamps Ve
hicles without automatic front passenger front
airbag shutoff ha vea special sticke r af fixe dto
th e side of the cockpit on the front passenger
side (/ page 70). Self-test of automatic front passenger front
airbag shutoff
When
the ignition is switched on, a self-test is
per form ed during which the two PASSENGER
AIR BAG ON and OFF indicator lamps light up
simul taneously.
The status of the front passenger front airbag is
displa yed af terth e self-tes t:
R PASSENGER AIR BAG ON lights up for
60 seconds, subsequently bo thindicator
lamps are off (PASSENGER AIR BAG ON and
OFF): the front passenger front airbag is able
to deploy in theeve nt of an accident.
R PASSENGER AIR BAG OFF lights up continu‐
ously: the front passenger front airbag is dis‐
abled. It will then not be deplo yed in the
eve nt of an accident.
If th ePA SSENGER AIR BAG ON indicator lamp is
off, on lythePA SSENGER AIR BAG OFF indicator
lamp sho ws thest atus of the front passenger
front airbag. The PASSENGER AIR BAG OFF indi‐
cator lamp may be lit continuously or be off.
If th ePA SSENGER AIR BAG OFF indicator lamp
and the6 restra int sy stem warning lamp light up simultaneousl
y,the front passenger seat
may not be used. Also in this case, do not fit a
ch ild restra int sy stem tothe front passenger
seat. Ha veautomatic front passenger front air‐
bag shutoff checked and repaired immediately at
a qu alified specialist workshop.
St atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that thest a‐
tus of the front passenger front airbag is cor rect
fo rth e cur rent situation.
Af terfitting a rear wa rd-facing child restra int
sy stem tothe front passenger seat:
PA SSENGER AIR BAG OFF must be lit continu‐
ousl y. &
WARNING Risk of inju ryor death from
using a rear wa rd-facing child restra int
sy stem when the front passenger front
airbag is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger
seat and thePA SSENGER AIR BAG OFF indi‐ 46
Occupant saf ety