tow MERCEDES-BENZ C-CLASS SALOON 2012 Owners Manual

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

Mir
rors ........................................................ 141Climate control
........................................ 14 4
Overview of climate contro l systems ..........1 44
Operating the climate control sy stem ......... 14 5 Driving and pa
rking ................................. 15 4
Driving ........................................................ 154
DY NA MIC SELECT switch ............................1 65
Au tomatic transmission .............................. 167
Fu nction of the 4MATIC .............................. 172
Re fuelling .................................................... 172
Pa rking ...................................................... .178
Driving and driving sa fety sy stems .............1 85
Tr ailer hit ch................................................. 237
Bicycle rack function ................................... 241
Ve hicle towing instructions ........................ .243 Instrument display and on-board
comp
uter.................................................. 244
No tes on the instrument display and on-
board computer .......................................... 24 4
Instrument display overview ...................... .245 Overview of buttons on
thesteering
wheel ..........................................................2 46
Operating the on-board computer .............. 24 6
Overview of displa yson the multifunc‐
tion display .................................................2 47
Head-up display .......................................... 24 8 LINGU
ATRO NIC ........................................ 250
No tes on operating saf ety .......................... 250
Ope ration ................................................... 250
Using LINGU ATRO NIC ef fectively ............... 252
Essential voice commands ........................ .252 Multimedia sy
stem .................................. 265
Overview and operation .............................. 265
Sy stem settings .......................................... 274
Fit & Healt hy............................................... 285
Na vigation .................................................. 287
Te lephone .................................................. .313
Online and Internet functions ..................... 340
Media ......................................................... 346
Ra dio .......................................................... 358
TV ............................................................... 361
Sound ......................................................... 369 Main
tenance and care ............................. 372
ASS YST PLUS service inter val display .........3 72
Engine compartment .................................. 373
Cleaning and care .......................................3 81 Breakdown assistance
............................388
Emergency .................................................. 388
Flat tyre ...................................................... 390
Battery (vehicle) ......................................... 396
To w- starting or towing away ....................... 402
Electrical fuses ........................................... 407 Wheels and tyres
...................................... 41 0
No tes on noise or unusual handling char‐
acteristics .................................................. .410
No tes on regular lyinspecting wheels and
tyres ............................................................ 41 0
No tes on snow chains ................................ .410
Ty re pressure ...............................................4 11
Wheel change .............................................. 414
Emergency spare wheel .............................. 424 Contents
3
Internal use only

1
Steering wheel gearshift paddles →
17 0
2 Combination swit ch →
127
3 Instrument display →
24 5
4 DIRECT SELECT le ver →
167
5 Media display →
265
6 Glovecompa rtment →
11 4
7 Start/ stop button →
15 5
8 Climate cont rol sy stems →
14 5
9 Calls up the main functions of the multimedia
sy stem →
269
A Hazard warning light sy stem →
12 8
B PASSENGER AIR BAG indicator lamps →
48
C Stow age compartment →
11 4
D Touchpad →
266
E Controller forvo lume and switching sound
on/off →
265
F Swit ches the multimedia sy stem on/off →
265 G
Rear-window roller sunblind →
94
H ECO start/ stop function →
16 3
I 360° camera →
223
J Sets theve hicle le vel →
219
K DYNA MIC SELECT switch →
16 6
L Control panel forth e multimedia sy stem →
24 6
M Adjusting thesteering wheel electrically →
108
Switches thesteering wheel heater on/off →
108
N Control panel:
On-board co mputer →
24 6
Cruise contro l orvariable limiter →
19 5
Ac tive Dis tance Assi stDISTRONIC →
19 9
O Diagno stics connection →
29
P Opens the bonn et →
374
Q Electric pa rking brake →
182
R Light switch →
12 5
S Control panel for: At
aglance – Cockpit 7
Internal use only

1
B-pillar with:
QR code for accessing there scue card →
33
2 Safetyve sts →
388
3 me button and SOS button →
331
4 Tocheck and top up operating fluids →
430
5 Totow- start and tow aw ay →
402
6 Flat tyre →
390
7 Starting assis tance →
400
8 Haza rdwa rning light sy stem →
12 8 9
Fire extinguisher →
389
A Fuelfiller flap with:
information label on fuel type →
172
information label on tyre pressure →
412
QR code for accessing there scue card →
33
B Totow- start and tow aw ay →
402
C TIREFIT kit →
392
D First-aid kit (so ftsided) →
389
E Warning triangle →
388 At
aglance – Emer gencies and breakdowns 19
Internal use only

&
WARNING Risk of accident due tocon‐
necting devices tothe diagnostics con‐
nection
If yo u connect devices tothe diagnostics
connection of theve hicle, the function of
ve hicle sy stems and operating saf ety may be
impaired. #
For saf etyre asons, werecommend that
yo u on lyuse and connect products
appr ovedby yo ur Mercedes-Benz
service centre. &
WARNING Risk of accident due to
objects 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. #
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 and using ano
ther device with the
diagnostics connection can ha vethefo llowing
ef fects:
R malfunctions in theve hicle sy stem
R permanent damage tovehicle components
Please referto thewa rranty term s and condi‐
tions forth is matter. 30
General no tes
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

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 seat belt tensioners could acciden‐
ta lly trigger or failto function as intended. #
Never modify the seat belt sy stem, for
ex ample the seat belt, seat belt buckle,
seat belt tensioner, seat belt anchorage
and seat belt retractor. #
Makesure that the seat belts are
undamaged, not wornand clean. #
Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop. Mercedes-Benz
recommends that you use seat
belts which ha vebeen appr ovedfo ryo ur vehicle
by Mercedes-Benz. &
WARNING Risk of injury or death from
deplo yedpy rotech nic seat belt tension‐
ers
Py rotech 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 qualified specialist work‐
shop. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident.
* NO
TEDama gecaused 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. #
Alw ays ensure that an unused seat belt
is fully retracted. Re
leasing there ar centre seat belt If
th e left-hand rear seat backrest is folded down
and back up again, it may not be possible topull
out there ar centre seat belt. The seat belt must
be released. #
Pull the seat belt out appr oximately 25 mm
at the seat belt outlet on the seat backrest
and then release it again.
The seat belt is retracted and released. Fa
stening and adjust ing seat belts If
th e seat belt is pulled quickly or sharpl y,the
seat belt retractor lo cks. The seat belt stra p can‐
not be pulled out any fur ther. Occupant saf
ety41
Internal use only

Pot
ential pr otection pr ovided byeach airbag:
R Knee airbag: thigh, knee and lo wer leg
R Driver's airbag, front passenger airbag: head
and ribcage
R Window airbag: head
R Side airbag: ribcage, also pelvis for front seat
occupants
* NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
WARNING Risk of injury or death ifthe
co-driver airbag is enabled
If th e co-driver airbag is enabled, a child on
th e co-driver seat may be stru ck bythe co-
driver airbag during an accident.
NEVER use a rear wa rd-facing child restra int
sy stem on a seat with an ENABLED FRONT
AIRB AG; DEAT H or SERIOUS INJU RYtothe
CH ILD can occur. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information (/ page 68). Also, alw ays obser ve
th e no tes on rear wa rd-facing or forw ard-facing
ch ild restra int sy stems on the front passenger
seat.
Information on automatic front passenger
airbag shutoff
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).
* NO
TEImpo rtant points toremember if
th e front passenger seat is unoccupied In an accident,
the components of the
re stra int sy stem may deploy unnecessarily
on the front passenger side if:
R There are heavy objects on the front
passenger seat. R
The seat belt tongue is engaged in the
seat belt buckle of the front passenger
seat and the front passenger seat is
unoccupied. #
Stow objects in a suitable place. #
Only one person should use each seat
belt at any one time. Depending on
the de tected accident situation,
th e window airbag on the front passenger side
may deplo y.The airbag is deplo yedre ga rdless of
whe ther the front passenger seat is occupied. Pr
otective capacity of the airbags Depending on
the accident situation, an airbag
may supplement the pr otection of fere dby a cor‐
re ctly fastened seat belt. &
WARNING Risk of injury or death dueto
an incor rect seat position
If yo u deviate from the cor rect seat position,
th e airbag cann otper form its intended pro‐
te ctive function. 44
Occupant saf ety
Internal use only

Each
vehicle occupant must make sure of the
fo llowing:
R Fasten seat belts cor rectl y.Pregnant
wo men must take particular care to
ensure that the lap belt ne ver lies across
th e abdomen.
R Adopt the cor rect seat position and keep
as faraw ay as possible from the airbags.
R Obser vethefo llowing information. #
Alw ays make sure that there are no
objects between the airbag and vehicle
occupant. To
avo idtherisks resulting from the deployment
of an airbag, each vehicle occupant must
obser vethefo llowing information in particular:
R Before starting your journe y,adjust your seat
co rrectly; the driver's seat and front
passenger seat should be mo ved as far back
as possible.
When doing so, alw ays obser vethe informa‐
tion on the cor rect driver's seat position
(/ page 98). R
Only hold thesteering wheel bythesteering
wheel rim. This allows the airbag tobe fully
deplo yed.
R Alw ays 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 thefloor. Do not put your feet on the
cockpit, forex ample. Your feet may other‐
wise be in the deployment area of the airbag.
R Ifch ildren are tra velling in theve hicle,
obser vethe additional no tes (/ page 53).
R Alw aysstow and secure objects cor rectly.
Objects in theve hicle interior may pr event an
airbag from functioning cor rectly. 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, within the deployment area of an air‐
bag, e.g. on the cockpit, on the door, on the
side window or on the side 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. Occupant saf
ety45
Internal use only

Limited pr
otection pr ovided byairbags &
WARNING Risk of injury duetomodifi‐
cations tothe co ver of an airbag
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 rectl y. #
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 (/ page 43). &
WARNING Risk of injury or death dueto
th e use of unsuitable seat co vers
Due tounsuitable seat co vers,th e airbags
cann otprotect vehicle occupants as inten‐
ded.
In addition, the operation of the automatic
front passenger airbag shutoff could be
re stricted. #
You should on lyuse seat co vers that
ha ve been appr oved forth e cor respond‐
ing seats byMercedes-Benz. &
WARNING Risk of injury duetomalfunc‐
tioning sensors in the door
The function of the airbags can be impaired
due tomodifications 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. #
Alw ays ha vewo rkon the doors or door
trim car ried out at a qualified specialist
wo rkshop. &
WARNING Risk of injury duetodeplo yed
airbag
A deplo yed airbag no longer of fers any pro‐
te ction. #
Have theve hicle towe dto aqu alified
specialist workshop in order tohave the
deplo yed airbag replaced. Ha
ve deplo yed airbags replaced immediately. St
atus of the front passenger front airbag Fu
nction of the automatic front passenger
airbag shu toff
The automatic front passenger airbag shutoff is
able todetect whe ther the front passenger seat
is occupied bya person or a child restra int sys‐
te m. The front passenger airbag is enabled or
disabled accordingly. &
WARNING Risk of injury or death dueto
objects under the co-driver seat
Objects trapped under the co-driver seat can
inter fere with the function of the automatic
co-driver airbag shutoff or damage the sys‐
te m. #
Do not store any objects under the co-
driver seat. 46
Occupant saf ety
Internal use only