
QR code for rescue card
The QR code is secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident ,rescue services can use
the QR code to quickly find the appropriate
rescue card for your vehicle. The curren tres-
cue card contains, in acompact form, the
most importan tinformation about your vehi-
cle, e.g. the routing of the electric cables.
You can find more information under https:// portal.aftersales.i.daimler.com/public/
content/asportal/en/communication/
informationen_fuer/QRCode.html. Data stored in the vehicle
Aw ide range of electronic componentsin
your vehicle contain data memories.
These data memories temporarily or perma-
nently stor etechnical information about:
R the vehicle's operating state
R events
R faults
In general, this technical information docu-
ment sthe stat eofac omponent,am odule, a
system or the surroundings.
These include, for example:
R operating conditions of system compo-
nents, e.g. fluid levels
R the vehicle's status messages and those of
its individual components, e.g. number of
wheel revolutions/speed, deceleration in
movement, lateral acceleration, accelera-
tor pedal position
R malfunctions and defect sinimportan tsys-
tem components, e.g. lights, brakes
R vehicle reactions and operating conditions
in special driving situations ,e.g. airbag
deployment, intervention of stability con-
trol systems
R ambient conditions, e.g. outside tempera-
ture This data is of an exclusively technical nature
and can be used to:
R assist in detecting and rectifying faults and
defects
R analyse vehicle functions, e.g. after an acci-
dent
R optimise vehicle functions
The data cannot be used to trac ethe vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data mem- ory and fault data memory.
Services include, for example:
R repair services
R service processes
R warranty events
R quality assurance
It is read by employees of the service network (including manufacturers) using special diag-
nostic testers. More detailed information is
obtained from it, if required.
After afault has been rectified, the informa-
tion is deleted from the fault memory or is
continually overwritten.
When operating the vehicle, situations are
conceivable in which this technical data, in
connection with other information (if neces-
sary, under consultation with an authorised
expert), could be traced to aperson.
Examples include:
R accident reports
R damage to the vehicle
R witness statements
Further additional functions that have been
contractually agreed upon with the customer
allow certain vehicle data to be conveyed by
the vehicle as well. The additional functions
include, for example, vehicle location in case of an emergency. 28
Introduction

See "Children in the vehicle" for further infor-
mation on children travelling in the vehicl eas
well as on child restraint systems
(Y page 58). Important safety notes
G
WARNING
If the restraint system is modified ,itmay no
longer work as intended .The restraint system
may then not perfor mits intended protective
function by failing in an accident or triggering
unexpectedly, for example. There is an
increased ris kofinjury ,possibly eve nfatal.
Neve rmodify parts of the restraint system. Do
not attempt to modify the wiring as well as
electronic components or thei rsoftware.
If it is necessary to modify an airba gsystem to
accommodate aperson with disabilities, con-
tact aMercedes-Benz Service Centre for
details. Restrain
tsystem warnin glamp
The functions of the restraint system are
checke dafterthe ignition is switche donand
at regular interval swhile the engine is run-
ning. Therefore, malfunctions can be detec-
ted in goo dtime.
The 6 restraint system warning lamp in
the instrument cluster lights up when the igni- tion is switche don. It goe soutno later tha na
few seconds afte rthe vehicl eisstarted. The
components of the restraint system are in
operationa lreadiness.
Am alfunction ha soccurred if the 6
restraint system warning lamp:
R doe snot light up afte rthe ignition is
switche don
R doe snot go ou tafte raf ew seconds with
the engine running
R lights up agai nwhile the engine is running G
WARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or might not be trig-
gered at al linthe event of an accident with a
high rate of vehicl edeceleration. Thi scan
effect belt tensioner sorairbags, for example.
There is an increased ris kofserious or even
fata linjuries.
Hav ethe restraint system checke dand
repaired immediatel yataqualified specialist
workshop. PASSENGER AI
RBAG OF Find icator
lamp PASSENGER AIR BAG OFF indicator lamp
:
is part of the automatic child sea trecognition
on the front-passenger seat.
Ap ermanently li tPASSENGER AIR BAG OFF
indicator lamp informs yo uthatthe front-
passenger front airba gisdisabled.
Depending on the person in the front-
passenger seat, the front-passenger front air-
ba gm uste ither be disabled or enabled ;see
the following points. Yo umustm ake sure of
this both before and during ajourney.
R Childre ninachild restrain tsystem:
whethe rthe front-passenger front airba gis
enabled or disabled depends on the instal- le dc hild restraint system, and the ag eand
size of the child .Therefore, it is imperative
to observe the notes on "Children in the
vehicle" (Y page 58). There yo uwilla lso
find information on rearward or forward- Occupant safety
45Safety Z

When deployed, the windowbag enhances the
level of protection for the head. However, it
does not protec tthe chest or arms.
In the event of aside impact, the windowbag
is deployed on the side on which the impact
occurs.
If the system determines that they can offer
additional protection to that provided by the
seat belt, awindowbag may be deployed in
other accident situation s(Ypage 53). Deployment of belt tensioners and air-
bags
Important safety notes G
WARNING
After the airbag deploys, the airbag parts are
hot. There is arisk of injury.
Do not touch the airbag parts. Have a
deployed airbag replaced at aqualified spe-
cialist workshop as soon as possible. G
WARNING
Pyrotechnic seat belt tensioners that have
been deployed are no longer operational and
are unable to perform their intended protec-
tive function. This poses an increased risk of
injury or even fatal injury.
Therefore, have pyrotechnic belt tensioners
which have been triggered immediately
replaced at aqualified specialist workshop.
Mercedes-Benz recommends that you have
the vehicle towed to aqualified specialist
workshop after an accident .Take this into
account ,particularly if aseat belt tensioner
was triggered or an airbag was deployed.
An electric motor is used by PRE-SAFE ®
to
trigger the tightening of the seat belt in haz-
ardous situations. This procedure is reversi-
ble.
If the belt tensioners are triggered or an air-
bag is deployed, you will hear abang, and a
small amount of powder may also be released. The
6restraint system warning
lamp lights up.
Only in rare cases will the bang affect your
hearing. In general, the powder released is
not hazardous to health but may cause short- term breathin gdifficulties to persons suffer-
ing from asthma or other pulmonary condi-
tions. Provided it is safe to do so, you should
leave the vehicle immediately or open the
window in order to preven tbreathin gdifficul-
ties.
Operation During the first stage of
acollision, the
restraint system control unit evaluates impor-
tant physical data relating to vehicle deceler- ation or acceleration, such as:
R duration
R direction
R intensity
Based on the evaluation of this data, the
restraint system control unit trigger sthe seat
belt tensioners in the event of ahead-on or
rear collision.
As eat belt tensioner can only be triggered if:
R the ignition is switched on
R the componentsoft he restraint system are
operational; see "Restraint system warning lamp" (Y page 45)
R the belt tongue has engaged in the belt
buckle of the respective fron tseat
The seat belt tensioners in the rear compart-
ment are triggered independently of the lock
status of the seat belts.
If the restraint system control unit detect sa
high severit yofanaccident,incertain head-
on collisions, additional componentsoft he
restraint system are deployed independently
of each another:
R Fron tairbags and driver's kneebag
R Windowbag, if the system determines that
deployment can offer additional protection
to that provided by the seat belt Occupant safety
53Safety Z

chil
drestraint system with transponders has
bee nfitted .Inthis case, the PASSENGER AIR
BAG OFF indicator lamp lights up and remains
lit. The front-passenger front airba gisdisa-
bled.
i If the front-passenger front airba gisdis-
able dbyt he automatic chil dseatrecogni-
tion, the following remain enabled on the
front-passenger side:
R the sidebag
R the pelvisbag
R the windowbag
R the bel ttensioner G
WARNING
If yo usecure achildinac hildr estraint system
on the front-passenger sea tand the
PASSENGER AIR BAG OFF indicator lamp is
off, the front-passenger front airba gcan
deploy in the event of an accident. The child
could be struck by the airbag. Thi sposes an
increased ris kofinjury or eve nfata linjury.
Make sure that the front-passenger front air-
ba gh asbee ndisable d. The PASSENGER AIR-
BAG OFF indicator lamp mus tbelit. G
WARNING
If the PASSENGER AIRBAG OFF indicator lamp is lit, the front-passenger front airba gisdisa-
bled. It will not be deployed in the event of an
accident and cannot perform its intended pro-
tectiv efunction. Aperson in the front-
passenger sea tcould then, for example, come
into contact with the vehicle's interior ,espe-
ciall yift he person is sitting too clos etothe
dashboard. Thi sposes an increased ris kof
injury or eve nfata linjury.
In this cas ethe front-passenger sea tmay not
be used. You may only transpor tachildont he
front-passenger sea tifthey are seated in a
suitabl erearward or forward-facing child
restraint system. Alway sobserve the infor-
mation abou tsuitabl epositioning of the child
restraint system in this Owner's Manua las
well as the chil drestraint system manufac-
turer's installation instructions. G
WARNING
If yo usecure achildinaf orward-facing child
restraint system on the front-passenger seat
and yo uposition the front-passenger sea ttoo
close to the dashboard, in the event of an
accident, the chil dcould:
R come into contact with the vehicle's inte-
rio rift he PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
R be struck by the airba gifthe PASSENGER
AIR BAG OFF indicator lamp is off
Thi sposes an increased ris kofinjury or even
fata linjury.
Move the front-passenger sea tasfar back as
possible .Alway smake sure that the shoulder
bel tstra pisc orrectly routed from the vehicle
bel tsashg uide to the shoulder bel tguide on
the chil drestraint system. The shoulder belt
stra pmustb erouted forward sand down-
wards from the vehicle bel tsashg uide .Ifnec-
essary ,adjust the vehicle bel tsashg uide and
the front-passenger sea taccordingly .Always
observe the information abou tsuitabl eposi-
tioning of the chil drestraint system in this
Owner's Manua laswellast he chil drestraint
system manufacturer' sinstallation instruc-
tions.
i Ensur
ethat your vehicle is equipped with
automatic chil dseatrecognition for the
front-passenger sea t(Ypage 67). If this
is not the case, always install achild
restraint system on asuitabl erears eat
(Y page 70). 66
Childre
ninthe vehicleSafety

PASSENGERA
IR BAG OFF indicator lamp :
shows you whether the front-passenger front airbag is disabled.
X Turn the key to position 1or 2in the ignition
lock or, on vehicles with KEYLESS-GO,
press the Start/Stop button once or twice. The system carries out aself-diagnosis.
The PASSENGERA IR BAG OFF indicator lamp
must light up for approximately six seconds.
If, after the system self-test, the
PASSENGER AIR BAG OFF indicator lamp:
R lights up ,the front-passenger fronta irbag
is disabled. It will then not be deployed in
the event of an accident.
R is not lit,t he sensor system did not detect
ac hild restraint system with transponder
for automatic child seat recognition. If, in
the case of an accident ,all deployment cri-
teria are met, the front-passenger fronta ir-
bag is deployed. G
WARNING
Electronic devices on the front-passenger
seat can affect the function of the automatic
child seat recognition, for example:
R laptop
R mobile phone
R transponder cards such as ski passes or
access passes
The front-passenger fronta irbag could deploy
unintentionally or not function as intended
during an accident .This poses an increased
risk of injury or even fatal injury.
Do not place any of the devices mentioned
above or similar devices on the front-
passenger seat. Be aware of the status of the front-passenger fronta irbag both before and
during the journey. Child restraint system on the front-
passenger seat
General notes Accident statistics show that children
secured in the rear seats are safer than chil-
dren secured in the front-passenger seat. For
this reason, Mercedes-Benz strongly advises
that you install achild restraint system on a
rear seat.
Vehicles with automatic child seat recogni-
tion on the front-passenger seat: if it is abso- lutely necessary to fit achild restraint system
to the front-passenger seat, alway sobserve
the information on "Automatic child seat rec-
ognition on the front-passenger seat"
(Y page 65).
You can thus avoid the risks that could arise
as aresult of:
R ac hild restraint system that is not detected
by the automatic child seat recognition
sensor system
R the unintentional disabling of the front-
passenger fronta irbag
R the unsuitable positionin gofthe child
restraint system, e.g. too close to the dash-
board Please observe the warning notice on the
front-passenger sun visor; see the illustra-
tion.
G
WARNING
If you secure achild in achild restraint system
on the front-passenger seat and the
PASSENGER AIR BAG OFF indicator lamp is Children in the vehicle
67Safety
Z

off, the front-passenger front airbag can
deploy in the event of an accident .The child
could be struck by the airbag. This poses an
increased risk of injury or even fatal injury.
Make sure that the front-passenger front air-
bag has been disabled. The PASSENGER AIR- BAG OFF indicator lamp must be lit.
NEVERu searearward facing child restraint
on aseat protected by an ACTIVE AIRBAGin
front of it; DEATH or SERIOUS INJURY to the
CHILD can occur.
Vehicles without automatic child seat
recognition on the front-passenger seat If the front-passenger seat of your vehicle is
not equipped with automatic child seat rec-
ognition
,this is indicated by aspecial sticker.
The sticker is affixed to the side of the dash-
board on the front-passenger side. The
sticker is visible when you open the front-
passenger door.
If you turn the key to position 2in the ignition
lock, the PASSENGER AIR BAG OFF indicator lamp lights up briefly. It has no function, how-ever, and does not indicate that the front-
passenger seat is equipped with automatic
child seat recognition.
Always fit the rearward-facing restraint sys-
tem to asuitable rear seat in this case
(Y page 70).
Observe the following information under
"Rearward-facing child restraint system" and
"Forward-facing child restraint system" as
well as information on the suitable position- ing of the child restraint system
(Y
page 70).
Rearward-facing child restraint system Warning symbol for
arearward-facing child
restraint system.
If it is absolutely necessary to fit arearward-
facing child restraint system to the front-
passenger seat, always make sure that the
front-passenger front airbag is disabled. Only if the PASSENGER AIR BAG OFF indicator
lamp is lit continuously (Y page 45) is the
front-passenger front airbag disabled.
Always observe the information on suitable
positioning of the child restraint system
(Y page 70) in addition to the child restraint
system manufacturer' sinstallation and oper-
ating instructions.
Forward-facing child restraint system If it is absolutely necessary to fit
aforward-
facing child restraint system to the front-
passenger seat, always move the front-
passenger seat as far back as possible. The
entire base of the child restraint system must
always rest on the seat cushion of the front-
passenger seat. The backrest of the child
restraint system must, as far as possible, lie
flat against the backrest of the front-
passenger seat. The child restraint system
must not touch the roof or be put under strain by the head restraint .Adjust the angle of the
seat backrest and the head restraint position accordingly. Always make sure that the shoul-
der belt strap is correctly routed from the 68
Children in the vehicleSafety

Problems with automatic child seat recognition
Problem
Possible causes/consequences and
M
MSolutions The PASSENGER AIR
BAG OFF indicator
lamp on the centre con-
sole is lit. As
pecial Mercedes-Benz child restraint system with atrans-
ponder for automatic child seat recognition has been fitted to the
front-passenger seat. The front-passenger front airbag has there- fore been disabledasd esired. G
WARNING
There is no child restraint system fitted to the front-passenger
seat. Automatic child seat recognition is malfunctioning, for exam-
ple due to electronic devices on the front-passenger seat.
There is arisk of injury.
X Remove electronic equipment from the front-passenger seat,
e.g.:
R laptop
R mobile phone
R ac ard with atransponder, such as aski pass or access pass
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used.
X Visit aqualified specialist workshop. The
6 restraint sys-
tem warning lamp
lights up and/or the
PASSENGER AIR BAG
OFF indicator lamp
does not light up briefly
when you switch the
ignition on. G
WARNING
Automatic child seat recognition is malfunctioning.
Do not install achild restraint system on the front-passenger seat.
It is recommended that you fit the child restraint system to asuit-
able rear seat.
X Visit aqualified specialist workshop.
X Please also refer to the notes about the restraint system warning
lamp (Y page 306). Suitable positioning of the child
restraint system
Introduction Only child restraint systems which are
approved in accordance with the ECE stand-
ard ECE R44 are permitted for use in the vehi- cle.
For certain child restraint systems in weight
categories II or III, this can mean that the area of use is restricted. The maximum size setting of the child restraint system is not possible
due to possible contact with the roof.
"Universal" category child restraint systems
can be recognised by their orange approval
label and the text "Universal".70
Children in the vehicleSafety

cialist workshop. Thi
salsoa pplies to colli-
sions at slo wspeeds where there is no visible
damag etothe front of the vehicle.
Distanc ewarnin gfunction General notes
The distance warning function can hel
pyou to
minimis ethe ris kofa collisio nwitht he vehi-
cle in front or reduce the effects of such a
collision. If the distance warning function
detects that there is ariskofa collision, you
will be warned visuall yand acoustically.
Important safety notes
i Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 77).G
WARNING
The distance warning function doe snot react:
R to peopl eoranimals
R to oncoming vehicles
R to crossing traffic
R whe ncornering
Thus, the distance warning function cannot
provid eawarning in al lcritical situations.
There is ariskofana ccident.
Alway spaycareful attention to the traffic sit-
uation and be ready to brake. G
WARNING
The distance warning function cannot always
clearl yide ntif yobjects and comple xtraffic
situations.
In such cases, the distance warning function
may:
R giv eanu nnecessary warning
R not giv eawarning
There is ariskofana ccident.
Alway spaycareful attention to the traffic sit-
uation; do not rel yonthe distance warning
function alone. Function
The distance warning function issue
sawarn-
ing at speeds:
R of approximately 30 km/h or more ,if, over
several seconds, the distance maintained
to the vehicle travelling in front is insuffi-
cient. The ·distance warning lamp
then lights up in the instrument cluster.
R of approximately 7km/h or more ,ifyou
rapidly approach avehicle in front. An inter-
mittent warning tone will then sound and
the · distance warning lamp will light
up in the instrument cluster.
X Brake immediately in order to increas ethe
distance from the vehicle in front.
or
X Take evasiv eaction provided it is safe to do
so.
Due to the nature of the system, particularly
complicate dbutnon-critical driving condi-
tions may also cause the system to display a
warning.
With the hel pofthe radar sensor system, the
distance warning function can detect obsta-
cle sthat are in the path of your vehicle for an
extended period of time.
Up to aspeed of approximately 70 km/h ,the
distance warning function can also react to
stationary obstacles, such as stopped or
parked vehicles.
Autonomous braking function If the driver doe
snot react to the distance
warning signal in acritical situation, COLLI-
SION PREVENTIO NASSIST PLUS can assist
with the autonomous braking function.
The autonomous braking function:
R gives the driver more time to react to criti-
cal driving situations
R can hel pthe driver to avoid an accident or
R reduce sthe effects of an accident Drivin
gsafety systems
81Safety Z