2012 MERCEDES-BENZ C-CLASS SALOON airbag

Symbols
........................................................ 5At
agl ance .................................................... 6
Cockpit ........................................................... 6
Indica tor and warning lamps (s tandard) ........ 10
Indicator and warning lamps (widesc reen
cockpit) ......................................................... 12
Overhead contro l panel ................................ 14
Door control panel and seat adjustment ....... 16
Emergencies and breakdowns ...................... 18Digital Owner's Manual
.............................20
Calling up the Digital Owner's Manual ..........20 Genera
l notes............................................. 21
Pr otection of the environment ......................21
Ta ke -ba ckof end-of-life vehicles ...................21
Mercedes-Benz GenuineParts ....................... 22
Owner's Manual ...........................................23
Operating saf ety .......................................... .23
Declaration of conformity ............................. 25
Diagno stics connection ................................ 29
Qualified specialist workshop ....................... 31Ve
hicle registration ....................................... 31
Cor rect use of theve hicle ............................. 31
Information on the REA CHregulation ........... 32
No tesfo r persons with electronic medi‐
cal aids ......................................................... 32
Implied warranty .......................................... .33
QR code forre scue card ...............................33
Data storage .................................................33
Copyright ...................................................... 36 Occupant saf
ety......................................... 37
Re stra int sy stem ...........................................37
Seat belts ..................................................... 39
Airbags ......................................................... 43
PRE-SAFE ®
sy stem ........................................51
Safely transporting children in theve hi‐
cle ................................................................52
No tes on pets in theve hicle .........................72 Opening and closing
.................................. 73
Ke y .............................................................. .73
Doo rs............................................................ 76
Boot .............................................................. 80
Side windo ws............................................... 85 Sliding sunroof ............................................. 89
Ro
ller sunblinds ............................................ 93
Anti-th eft protection .....................................94 Seats and
stowing ..................................... 98
No tes on the cor rect driver's seat posi‐
tion ............................................................... 98
Seats ............................................................ 99
St eering wheel ............................................ 107
Easy entry and exitfeature ........................ .109
Memory function ......................................... 11 0
St ow age areas ............................................ .111
Soc kets ....................................................... 12 0
Wi reless charging of the mobile phone
and connection with theex terior aerial ...... 12 2
Fitting/removing thefloor mats ................. 12 3 Light and sight
......................................... 12 5
Exterior lighting .......................................... 12 5
Interior lighting ........................................... 13 4
Changing bulbs (on lyforve hicles with
halogen headlamp s) .................................... 13 5
Wi ndsc reen wipers and windscreen
wa sher sy stem ............................................ 13 82
Contents
Internal use only

Mercedes-Benz GenuineParts
+ ENVIRONMENTAL
NOTEEnvironmental
dama gecaused bynot using recycled
re conditioned components Mercedes‑Benz
AGoffers recycled recondi‐
tioned components and pa rts with the same
qu ality as new parts. The same entitlement
from the implied warranty is valid as for new
parts. #
Recycled reconditioned components
and pa rts from Mercedes‑Benz AG.*
NO
TEImpairment of the operating ef fi‐
ciency of there stra int sy stems from
ins talling accessory parts or from repairs
or we lding Airbags and seat belt
tensioners, as well as
control units and sensors forth ere stra int
sy stems, may be ins talled in thefo llowing
areas of your vehicle:
R doors R
door pillars
R door sills
R seats
R cockpit
R instrument clus ter
R centre console
R late ra lro of frame #
Do not ins tall accessory parts such as
audio sy stems in these areas. #
Do not car ryout repairs or welding. #
Have accesso ries retrofitted at a quali‐
fi ed specialist workshop. Yo
u could jeopardise the operating saf ety of your
ve hicle if you use parts, tyres and wheels as well
as accessories releva nt tosaf ety which ha venot
been appr ovedby Mercedes-Benz. Saf ety-re le‐
va nt sy stems, e.g. the brake sy stem, may mal‐
function. Only use Mercedes-Benz GenuineParts
or parts of equal qualit y.Only use tyres, wheels
and accessories that ha vebeen specifically
appr ovedfo ryo ur vehicle model. Mercedes-Benz
tests original parts and con ver‐
sion parts and accessories that ha vebeen spe‐
cifically appr ovedfo ryo ur vehicle model forth eir
re liability, saf ety and suitabilit y.Despite ongoing
ma rket resear ch, Mercedes-Benz is unable to
assess other parts. Mercedes-Benz therefore
accepts no responsibility forth e use of such
parts in Mercedes-Benz vehicles, even if they
ha ve been of ficially appr oved or independently
appr ovedby ate sting centre.
Cer tain parts are only of ficially appr ovedfor
ins tallation or modification if they comply wi th
legal requirements. All Mercedes-Benz Genuine‐
Pa rts meet the appr oval requ irements. The use
of non-appr oved parts may in validate theve hi‐
cle's general operating pe rmit.
This is the case in thefo llowing situations:
R theve hicle type is dif fere nt from that for
which theve hicle's general operating pe rmit
wa s granted.
R other road users could be endangered.
R theex haust gas or noise le velge ts wo rse. 22
General no tes
Internal use only

ex
tent requ ired, data stored bythe manufac‐
turer. Forex ample, this may be the case during
th e in vestigation of a criminal of fence.
Go vernmental entities are themselves, in individ‐
ual cases and within the applicable legal frame‐
wo rk, authorised toread out data from theve hi‐
cle. In the case of an accident, information that
can help with an in vestigation can, therefore, be
ta ke n from the airbag control unit, forex ample.
Operational data in theve hicle
This is data rega rding the operation of theve hi‐
cle, which ha vebeen processed bycontrol units.
This includes thefo llowing data, forex ample:
R vehicle status information such as the speed,
longitudinal acceleration, lateral accelera‐
tion, number of wheel revo lutions or thefa s‐
te ned seat belts displ ay
R ambient conditions, such as temp erature,
ra in sensor or dis tance sensor
General ly,th e use of these data is temp orar y;
th ey will not be stored be yond the period of
operation and will only be processed within the
ve hicle itself. Control units of ten contain da tamemories
forve hicle keys,fo rex ample. Their
use permits thete mp orary or permanent docu‐
mentation of tech nical information about the
ve hicle's operating state, component loads,
main tenance requ irements and tech nical events
or faults.
Depending on theve hicle equipment, thefo llow‐
ing data are stored:
R operating status of sy stem components,
such as fill le vels, tyre pressure or battery
st atus
R malfunctions or faults in impor tant sy stem
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag deployment or the inter ven‐
tion of stability control sy stems
R information on events leading tovehicle
damage
In cer tain cases, it may be requiredtostore data
th at wo uld ha veotherwise been used only tem‐
porarily. This may be the case if theve hicle has
de tected a malfunction, forex ample. If
yo u use services, such as repair services and
maintenance work,st ored operational data as
we ll as theve hicle identification number can be
re ad out and used. They can be read out by
service network emplo yees, such as workshops
and manufacturers or third parties, such as
breakdown services. The same is true in the
case of warranty claims and quality assurance
measures.
In general, there ad out is per form ed via the
legally prescribed port forth e diagnostics con‐
nection in theve hicle. The operational data that
are read out document tech nical states of the
ve hicle or of individual components and assist in
th e diagnosis of malfunctions, compliance with
wa rranty obligations and quality impr ovement.
To that end, these data, in particular information
about component loads, tech nical events, mal‐
functions and other faults may be transmit ted
along with theve hicle identification number to
th e manufacturer. Furthermore, the manufac‐
turer is subject toproduct liability. Forth is rea‐
son the manufacturer also uses operational data
from theve hicle, forex ample, forre calls. These 34
General no tes
Internal use only

Re
stra int sy stem Pr
otection pr ovided 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 upri ght 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. Re
duced restra int sy stem pr otection &
WARNING Risk of injury or death dueto
modifications tothere stra int sy stem
Ve hicle occupants may no longer be pr otec‐
te d as intended if alterations are made tothe
re stra int sy stem. #
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
tomodify theve hicle toaccom‐
modate a person with disabilities, con tact a
qu alified specialist workshop.
Mercedes-Benz recommends that you use driv‐
ing aids which ha vebeen appr ovedfo ryo ur vehi‐
cle byMercedes-Benz. Re
stra int sy stem functionality When
the ignition is switched on, a self-test is
per form ed, during which the6 restra int sys‐ Occupant saf
ety37
Internal use only

te
m wa rning lamp lights up. It goes out no later
th an a few seconds af terth eve hicle is star ted.
The components of there stra int sy stem are then
functional. Malfunctioning
restra int sy stem A malfunction has occur
red in there stra int sys‐
te m if:
R the6 restra int sy stem warning lamp does
not light up when the ignition is switched on
R the6 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journey &
WARNING Risk of injury duetomalfunc‐
tions in there stra int sy stem
Components in there stra int sy stem may be
activated unintentionally or not deploy as
intended in an accident. #
Have there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop. Fu
nction of there stra int sy stem in an acci‐
dent How
there stra int sy stem works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
R Frontal impact
R Rear impact
R Side impact
R Onlyfor cer tain countries: rollo ver
The activation thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of
th e components of there stra int sy stem must
ta ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measu red
af te r a collision has occur red do not play a deci‐
sive role in the deployment of an airbag. Nordo
th ey prov ide an indication of airbag deployment.
The vehicle may be deformed significantly with‐
out an airbag being deplo yed. This is the case if only parts which are
relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an airbag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, this may
re sult in suf ficiently high le vels of vehicle decel‐
eration.
Depending on the de tected deployment situa‐
tion, the components of there stra int sy stem can
be activated or deplo yed independently of each
ot her:
R Front seat belt tensioner: frontal impact, rear
impact, side impact, rollo ver 1
R Rear seat belt tensioner: frontal impact, rear
impact, rollo ver 1
R Driver's airbag, front passenger airbag: fron‐
talimpact
R Knee airbag: frontal impact
R Side airbag: side impact
R Window airbag: side impact, rollo ver 1
, frontal
impact
1) Only for cer tain countries. 38
Occupant saf ety
Internal use only

The front passenger airbag can only be deplo
yed
in an accident if thePA SSENGER AIR BAG OFF
indicator lamp is off. If the front passenger seat
is occupied, make sure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect (/ page 48). &
WARNING Risk of burn s from hot airbag
components
The airbag parts are hot af ter an airbag has
been deploy ed. #
Do not touch the airbag parts. #
Have a deplo yed airbag replaced at a
qu alified specialist workshop as soon
as possible. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. Take this into account, partic‐
ularly if a seat belt tensioner is trigge red or an
airbag deplo yed. If
th e seat belt tensioners are trig gered or an air‐
bag is deplo yed, you will hear a bang, and a
small amount of powder may also be released:
R The bang will not generally af fect your hear‐
ing.
R Ingeneral, the powder released is not haz‐
ardous tohealth but may cause short-term
breathing dif ficulties topersons suf fering
from as thma or other pulmonary conditions.
Pr ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr eve nt brea thing dif ficulties. Seat belts
Pr
otection pr ovided bythe seat belt Alw
aysfast enyour seat belt corr ectlybefore
st arting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectly. &
WARNING Risk of injury or death dueto
incor rectly fastened seat belt
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 ensure that all vehicle occu‐
pants ha vetheir seat belts fastened
cor rectly and are sitting properl y. Alw
ays obser vethe instructions about the cor‐
re ct driver's seat position and adjusting the seat
(/ page 98).
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. Occupant saf
ety39
Internal use only

#
Alw ays engage seat belt tongue 2ofthe
seat belt into seat belt buckle 1ofthe cor‐
re sponding seat. #
Press and hold the seat belt outlet release
and slide seat belt outlet 3into the desired
position. #
Let go of the seat belt outlet release and
ensure that seat belt outlet 3locksinto
position. Ve
hicles with automatic front passenge r air‐
bag shu toff:
* NO
TEDeployment of the seat belt ten‐
sioner and side impact airbag when the
front passenger seat is unoccupied If
th e seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the seat belt tensioner and
th e side impact airbag may also deploy in the
ev ent of an accident along with other sys‐
te ms. #
Only one person should use each seat
belt at any one time. Ve
hicles without automatic front passen ger
airbag shu toff:
* NO
TEDeployment of the seat belt ten‐
sioner when the front passenger seat is
unoccupied If
th e seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the seat belt tensioner may also deploy
intheev ent of an accident along
with other sy stems. #
Only one person should use each seat
belt at any one time. Seat belt adjustment function
Ve
hicles with PRE-SAFE ®
:af te r a front seat
belt has been fastened, the automatic seat belt
adjustment may apply a cer tain tigh tening forc e.
Do not hold the seat belt tightly while it is
adjusting.
Yo u can activate and deactivate the seat belt
adjustment function using the multimedia sys‐
te m (/ page 42). Ac
tivating/deactivating seat belt adjustment
via the multimedia sy stem Multimedia sy
stem:
4 Vehicle 5
î Vehicle settings
5 Belt adjustment #
Activate Oor deacti vate ª the function. 42
Occupant saf ety
Internal use only

Re
leasing seat belts #
Press there lease button in the seat belt
buckle and guide the seat belt back with the
seat belt tongue. Seat belt
warning function for the driver and
front passen ger The
ü seat belt warning lamp in the instru‐
ment display is a reminder that all vehicle occu‐
pants must weartheir seat belts cor rectly.
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. Fu
nction of there ar seat belt status display The
rear seat belt status display is on lyavailable
fo r cer tain countries. When
the ignition is switched on, there ar seat
belt status display informs youfo r a cer tain
amount of time which rear seat belt is not fas‐
te ned.
Yo u can immediately dismiss there ar seat belt
st atus display using the back button on the left-
hand side of thesteering wheel (/ page246).
If a vehicle occupant unfas tens a seat belt in the
re ar while theve hicle is motion, there ar seat
belt status display appears again.
In addition, a warning tone may sound. In this
case, there ar seat belt status display cannot be
hidden using the back button on the left-hand
side of thesteering wheel. Airbags
Overview of airbags
1
Knee airbag
2 Driver's airbag
3 Front passenger airbag
4 Window airbag
5 Side airbag
The ins tallation location of an airbag is identified
by the AIRB AGsymbol.
When enabled, an airbag can pr ovide additional
pr otection forth ere spective vehicle occupant. Occupant saf
ety43
Internal use only