2014 MERCEDES-BENZ C-CLASS SALOON window

Warnings
Stickers .......................................... .42
Washer fluid
Display message ............................ 349
Wheel and tyre combinations
see Tyres
Wheel bolt tightening torque ........... 443
Wheel chock ...................................... 439
Wheels
Changing a wheel .......................... 437
Changing/replacing ....................... 438
Checking ........................................ 429
Cleaning ......................................... 399
Emergency spare wheel ................. 461
Fitting a new wheel ........................ 442
Fitting a wheel .............................. .438
Important safety notes .................. 428
Removing a wheel .......................... 442
Storing .......................................... .438
Tightening torque ........................... 443
Wheel size/tyre size ..................... .444
Windowbag
Display message ............................ 326
Operation ......................................... 53
Windows
Cleaning ......................................... 399
see Side windows
Windscreen
Demisting ...................................... 163
Windscreen washer fluid
see Windscreen washer system
Windscreen washer system
Notes ............................................. 476
Topping up ..................................... 394
Windscreen wipers
Problem (malfunction) ................... 148
Replacing the wiper blades ............ 145
Switching on/off ........................... 145
Winter operation
Important safety notes .................. 430
Radiator cover ............................... 392
Slippery road surfaces ................... 215
Snow chains .................................. 431
Summer tyres ................................ 430
Winter tyres
Limiting the speed (on-board com-
puter) ............................................. 313
M+S tyres ...................................... 430 Wiper blades
Cleaning ......................................... 400
Important safety notes .................. 145
Replacing ....................................... 145
Replacing (windscreen) .................. 146
Wooden trim (cleaning instruc-
tions) ................................................. .403
Workshop
see Qualified specialist workshop Index
23

Centre console, lower section
i
Vehicles with DIRECT SELECT lever Function Page
:
Stowage compartment 368
Ashtray 379
Cigarette lighter 380
Power socket 381
Cup holders 376
;
Adjusts/mutes the volume
(see the separate operating
instructions) =
Switches audio/COMAND
Online on/off (see the sep-
arate operating instruc-
tions)
?
è
ECO start/stop func-
tion 186
A
Touchpad (see the separate
operating instructions) Function Page
B
Stowage compartment 368
C
u
Rear window roller
sunblind 379
D
É
Sets the vehicle level 234
E
AGILITY SELECT switch 197
F
Back button (see the sepa-
rate operating instructions)
G
Audio 20/COMAND con-
troller (see the separate
operating instructions)
H
g
Switches to the
favourites button (see the
separate operating instruc-
tions) 38
Centre consoleAt a glance

Door control panel
Function Page
:
r
45=
Stores settings for the seat, exterior mirrors and steer-
ing wheel 130
;
Adjusts the seats electri-
cally
121
=
c
Seat heating 123
?
s
Seat ventilation 124
A
Opens the door 97
B
%&Unlocks/locks
the vehicle 97
C
W
Opens/closes the
rear left side window 106
D
W
Opens/closes the left
side window 106 Function Page
E
7Zª\
Adjusts and folds the exte-
rior mirrors in/out electri-
cally
128
F
W
Opens/closes the
right side window 106
G
W
Opens/closes the
rear right side window 106
H
n
Override feature for
the controls in the rear
compartment 73
I
p
Opens/closes the
boot lid 10440
Door control panelAt a glance

If a rear seat passenger unfastens their seat
belt when travelling at a speed above
25 km/h, a short warning tone also sounds.
You can also cancel the rear seat belt status
indicator immediately (Y page 314).Airbags
Introduction The installation location of an airbag is iden-
tified by the AIRBAG symbol.
An airbag supplements a correctly worn seat
belt. It is not a replacement for the seat belt.
The airbag offers additional protection in
applicable accident situations.
Not all airbags are deployed in an accident.
The different airbag systems work independ-
ently of each other (Y page 60).
However, no system available today can com- pletely eliminate injuries and fatalities.
It is also not possible to completely rule out a
risk of injury caused by an airbag due to the
speed at which the airbag must be deployed.
Important safety notes G
WARNING
If you deviate from the correct seat position,
the airbag cannot perform its intended pro-
tective function and can even cause addi-
tional injuries when deployed. There is an
increased risk of serious or even fatal injuries.
In order to avoid such risks, always ensure
that all vehicle occupants:
R fasten their seatbelts correctly, including
pregnant women
R are seated correctly and maintain the fur-
thest possible distance from the airbags
R observe the following notes
Always ensure that there are no objects loca-
ted between the airbag and the vehicle occu-
pant.
R Adjust the seats properly before beginning
your journey. Always make sure that the seat is in an almost upright position. The
centre of the head restraint must support
the head at about eye level.
R Move the driver's and front-passenger
seats as far back as possible. The driver's
seat position must allow the vehicle to be
driven safely.
R Only hold the steering wheel on the out-
side. This allows the airbag to be fully
deployed.
R Always lean against the backrest while driv-
ing. Do not lean forwards or lean against
the door or side window. You may other-
wise be in the deployment area of the air-
bags.
R Always keep your feet in the footwell in
front of the seat. Do not put your feet on the
dashboard, for example. Your feet may oth-
erwise be in the deployment area of the
airbag.
R For this reason, always secure persons less
than 1.50 mtall in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If a child is travelling in your vehicle, also
observe the following notes:
R Always secure children under 12 years of
age and less than 1.50 mtall in suitable
child restraint systems.
R Child restraint systems should be fitted to
the rear seats.
R Only secure a child to the front-passenger
seat when the front-passenger front airbag
is disabled, and only then in a rearward-
facing child restraint system. If the
PASSENGER AIR BAG OFF indicator lamp is
permanently lit, the front-passenger front
airbag is disabled (Y page 46).
R Always observe the instructions and safety
notes on the automatic front-passenger
front airbag deactivation system
(Y page 54) and on "Children in the vehi-
cle" (Y page 63) in addition to the child
restraint system manufacturer's installa-
tion instructions. Occupant safety
51Safety Z

Objects in the vehicle interior may pre-
vent the airbag from functioning cor-
rectly. Before starting your journey and to
avoid risks resulting from the speed of the
airbag as it deploys, make sure that:
R there are no people, animals or objects
between the vehicle occupants and an air-
bag.
R there are no objects between the seat, door
and B-pillar.
R no hard objects, e.g. coat hangers, hang on
the grab handles or coat hooks.
R no accessories, such as cup holders, are
attached to the vehicle within the deploy-
ment area of an airbag, e.g. to doors, side
windows, rear side trim or side walls.
R no heavy, sharp-edged or fragile objects
are in the pockets of your clothing. Store
such objects in a suitable place. G
WARNING
If you modify an airbag cover or affix objects
such as stickers to it, the airbag can no longer function correctly. There is an increased risk
of injury.
Never modify an airbag cover or affix objects
to it. G
WARNING
Sensors to control the airbags are located in
the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ling, as well as damaged doors, can lead to the function of the sensors being impaired. The
airbags might therefore not function properly any more. Consequently, the airbags cannot
protect vehicle occupants as they are
designed to do. This poses an increased risk
of injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
elling carried out at a qualified specialist
workshop. Front airbags !
Do not place heavy objects on the front-
passenger seat. This could cause the sys-
tem to identify the seat as being occupied. In the event of an accident, the restraint
systems on the front-passenger side may
be triggered and have to be replaced. Driver's airbag
:deploys in front of the
steering wheel; front-passenger front air-
bag ;deploys in front of and above the glove
compartment.
When deployed on the front seats, the front
airbags offer additional protection for the
head and thorax.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
inform you about the status of the front-
passenger front airbag (Y page 46).
Front-passenger front airbag ;will only
deploy if:
R the automatic front-passenger front airbag
deactivation system has detected that the
front-passenger seat is occupied
(Y page 54). The PASSENGER AIR BAG
ON indicator lamp lights up (Y page 54)
R the restraint system predicts a high
severity of an accident 52
Occupant safetySafety

Driver's kneebag
Driver's kneebag
:deploys under the steer-
ing column. The driver's kneebag is triggered
together with the front airbag.
The driver's kneebag on the driver's seat
offers additional protection for the thighs,
knee and lower leg.
Sidebags G
WARNING
Unsuitable seat covers can obstruct or pre-
vent the deployment of the airbags integrated into the seats. Consequently, the airbags can-
not protect vehicle occupants as they are
designed to do. In addition, the function of the automatic front-passenger front airbag deac-
tivation system could be restricted. This
poses an increased risk of injury or even fatal
injury.
You should only use seat covers that have
been approved for the corresponding seats by Mercedes-Benz. Front sidebags
:and rear sidebags ;
deploy next to the outer bolster of the seat
backrest.
When deployed, the sidebag offers additional thorax protection. However, it does not pro-
tect the:
R head
R neck
R arms
In the event of a side impact, the sidebag is
deployed on the side on which the impact
occurs.
vehicles with the automatic front-passenger
front airbag deactivation system: the sidebag on the front-passenger side (front) deploys
under the following conditions:
R an occupant is detected on the front-
passenger seat or
R the belt tongue is engaged in the belt
buckle of the front-passenger seat
If the belt tongue is engaged in the belt
buckle, the sidebag on the front-passenger
side deploys if an appropriate accident situa- tion occurs. In this case, deployment is inde- pendent of whether the front-passenger seatis occupied or not.
Windowbags Windowbags
:are integrated into the side
of the roof frame and deployed in the area
from the A-pillar to the C-pillar.
When deployed, the windowbag enhances the
level of protection for the head. However, it
does not protect the chest or arms. Occupant safety
53Safety Z

In the event of a side 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, a windowbag may be deployed in
other accident situations (Y page 60).Automatic front-passenger front air-
bag deactivation
Introduction In order to recognise a child restraint system
on the front-passenger seat, the automatic
front-passenger front airbag deactivation sys- tem categorises the person in the front-
passenger seat. Depending on that result, the
front-passenger front airbag is either enabled or disabled. If a rearward-facing child
restraint system is fitted to the front-
passenger seat, the PASSENGER AIR BAG
OFF indicator lamp must light up after the
system self-test and remain lit. The front-
passenger front airbag is disabled.
The system does not disable:
R the sidebag
R the windowbag
R the seat belt tensioner
Make sure that your vehicle is equipped with
the automatic front-passenger front airbag
deactivation system (Y page 66). If this is
not the case, always fit the child restraint sys- tem on a suitable rear seat (Y page 68).
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
be sure to observe the correct positioning of
the child restraint system. Never place
objects under or behind the child restraint
system, e.g. cushions. Fully retract the seat
cushion length. The entire base of the child
restraint system must always rest on the seat cushion of the front-passenger seat. The
backrest of the forwards-facing child restraint
system must, as far as possible, be resting on 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. Only then is the correct function of the automatic front- passenger front airbag deactivation system
guaranteed. Always observe the information
on suitable positioning of the child restraint
system (Y page 68) in addition to the child
restraint system manufacturer's installation
instructions.
Operation of automatic front-passenger front airbag deactivation :
PASSENGER AIR BAG ON indicator lamp
; PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front airbag is disabled or
enabled.
X Press the Start/Stop button once or twice,
or turn the key to position 1or 2in the
ignition lock.
The system carries out a self-diagnosis.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
must light up simultaneously for approx-
imately six seconds.
The indicator lamps display the status of the
front-passenger front airbag.
R PASSENGER AIR BAG ON :lights up: the
front-passenger front airbag is enabled. If,
in the case of an accident, all deployment 54
Occupant safetySafety

Deployment of belt tensioners and air-
bags
Important safety notes G
WARNING
After the airbag deploys, the airbag parts are
hot. There is a risk of injury.
Do not touch the airbag parts. Have a
deployed airbag replaced at a qualified 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 a qualified specialist workshop.
Mercedes-Benz recommends that you have
the vehicle towed to a qualified specialist
workshop after an accident. Take this into
account, particularly if a seat 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 a bang, 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 breathing difficulties 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 prevent breathing difficul- ties. Operation During the first stage of a collision, 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 triggers the seat
belt tensioners in the event of a head-on or
rear collision.
A seat belt tensioner can only be triggered if:
R the ignition is switched on
R the components of the 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 front seat
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 detects a
high severity of an accident, in certain head-
on collisions, additional components of the
restraint system are deployed independently
of each another:
R front airbags and driver's kneebag
R windowbag, if the system determines that
deployment can offer additional protection
to that provided by the seat belt
On vehicles with the automatic front-
passenger front airbag deactivation system:
depending on the person in the front-
passenger seat, the front-passenger front air-
bag is either disabled or enabled. The front-
passenger front airbag can only be deployed
in an accident if the PASSENGER AIR BAG ON indicator lamp is lit. Observe the information
on the PASSENGER AIR BAG indicator lamps
(Y page 46).
Your vehicle has two-stage front airbags. In
the first deployment stage, the front airbag is
filled with propellant gas to reduce the risk of 60
Occupant safetySafety