airbag MERCEDES-BENZ B-CLASS HATCHBACK 2011 Owners Manual

1, 2, 3 ...
12 Vsocket
see Socket A
ABS (Anti-lock Braking System) Display message ............................ 206
Function/notes ................................ 63
Important safety notes ....................63
Warning lamp ................................. 233
Activating/deactivating air-recir-
culation mode .................................... 121
Activating/deactivating cooling
with air dehumidification .................117
Active light function .........................100
Active Park Assist Display message ............................ 224
Active Parking Assist
Function/notes ............................. 166
Important safety notes ..................166
Towing atrailer .............................. 169
ADAPTIVE BRAKE ................................. 68
Adaptive brake lamps .........................66
Adaptive Highbeam Assist Display message ............................ 219
Function/notes ............................. 101
Adaptive Main-beam Assist
Switching on/off (on-board com-
puter) ............................................. 202
Additional speedometer ...................200
Additives (engine oil) ........................315
Adjusting the headlamp range ...........98
Airbags Front airbag (driver, front
passenger )....................................... 41
Important safety guidelines .............40
Kneebag .......................................... .42
Sidebag ............................................ 42
Triggering ......................................... 39
Windowba g...................................... 43
Air-conditioning system
see Climate control
Airf ilter (white display message) ....221
Air pressure see Tyre pressure Airv
ents
Important safet ynotes .................. 122
Rea r............................................... 123
Setting ........................................... 122
Setting the centre air vents ...........123
Setting the side air vents ...............123
Alarm system
see ATA (Anti-Theft Alarm system)
Anti-glare film .................................... 260
Anti-loc kBraking System
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ....................................... 148
Ashtray ............................................... 256
Assistance menu (on-board com-
puter) ................................................. .198
ASSYST PLUS see ASSYST PLUS service interval
display
ASSYST PLUS service interval dis-
play
Displaying service messages .........266
Hiding service messages ...............266
Notes ............................................. 266
Service messages ..........................266
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................68
Function .......................................... .68
Interior motion sensor .....................69
Switching off the alarm ....................68
Tow-away protection ........................ 69
ATTENTIO NASSIST
Activating/deactivating .................199
Display message ............................ 221
Function/notes ............................. 175
Audio menu (on-board computer) ....195
Authorised workshop see Qualified specialist workshop
AUTO lights
Display message ............................ 218
see Lights
Automatic engine start (ECO start/
stop function) .................................... 130
Automatic engine switch-off (ECO
start/stop function) ..........................129
Automatic headlamp mode ................97 4
Index

P
Paint code .......................................... 310
Paintwork (cleaning instructions) ...268
Panorama sliding sunroof Important safety information ...........82
Opening/closing .............................. 83
Opening/closing the roller sun-
blind ................................................. 83
Problem (malfunction) .....................84
Rain closing feature .........................83
Resetting ......................................... 84
Parking ............................................... 144
Important safety notes ..................144
Parking brake ................................ 145
Position of exterior mirror, front-
passenger side ................................. 93
Reversing camera ..........................170
see PARKTRONIC
Parking aid
Active Parking Assist .....................166
see Exterior mirrors
see PARKTRONIC
Parking brake
Display message ............................ 208
Electric parking brake ....................145
Parking lamps
Changing bulbs .............................. 106
Display message ............................ 217
Switching on/off .............................. 96
Parking lamps (changing bulbs) ......106
PARKTRONIC Deactivating/activating .................165
Driving system ............................... 163
Function/notes ............................. 163
Important safety notes ..................163
Problem (fault) ............................... 166
Sensor range ................................. 164
Trailer towing ................................. 165
Warning displa y............................. 164
PASSENGE RAIRBAG OFF warning
lamp ...................................................... 49
Petrol .................................................. 312
Plastic trim (cleaning instructions) .271
Power windows see Side windows PRE-SAFE
®
(preventive occupant
safety system) Display message ............................ 212
Operation ........................................ .43
Program selector button ..................137
Pulling away Automatic transmission .................128
Manual transmission ..................... .128
Trailer ............................................ 128 Q
Qualifie dspecialis tworkshop ...........22 R
Radar sensor system Activating/deactivating .................203
Country overview ........................... 320
Display message ............................ 222
Radio
Selecting astation ......................... 195
see separate operating instructions
Rain closing feature (panorama
sliding sunroof) ................................... 83
Reading lamp ..................................... 102
Rear compartment Setting the airv ents...................... 123
Rear-compartment seat belt sta-
tus indicator ........................................ 46
Rear foglamp Display message ............................ 217
Switching on/off .............................. 98
Rear lamps
Changing bulbs .............................. 107
see Lights
Rear seat
Adjusting the angle of the backr-
ests ................................................ 250
Folding the backrest forwards/
back (vehicles without the EASY-
VARIO-PLUS system) .....................248
Folding the backres tforwards/
back (vehicles with the EASY-
VARIO-PLUS system) .....................249
Fore-and-aft adjustment ................25014
Index

Vehicle identification number
see VIN
Vehicle identification plate ..............310
Vehicle tool kit .................................. 275
Vehicle weights ................................. 317
Vents see Air vents
Video (DVD) ........................................ 196
Video DVD (on-board computer) ......196
VIN ...................................................... 310W
Warning and indicator lamps ABS ................................................ 233
Brakes ........................................... 233
Distance warning signa l................. 241
ESP ®
.............................................. 235
ESP ®
OFF ....................................... 236
Fuel tank ........................................ 239
LIM (cruise control) ........................ 149
LIM (DISTRONIC PLUS) ..................155
LIM (variable SPEEDTRONIC) .........152
Overview .......................................... 30
PASSENGER AIRBAG OFF ................49
Reserve fuel ................................... 239
Seat bel t........................................ 231
SRS ................................................ 238
Warning triangle ................................ 274
Washer fluid Display message ............................ 231
Wheel bol ttightening torque ...........302
Wheel chock ...................................... 299
Wheels Changing/replacing .......................298
Changing awheel .......................... 298
Checking ........................................ 293
Cleaning ......................................... 268
Cleaning (warning) .........................298
Emergency spare wheel .................304
Fitting anew wheel ........................ 301
Fitting awheel ............................... 298
Important safety notes ..................292
Removing awheel .......................... 301
Storing ........................................... 298
Tightening torque ........................... 302
Whee lsize/tyre size ...................... 302Windowbag
Display message ............................ 215
Operation ........................................ .43
Windows
Cleaning ......................................... 269
see Side windows
Windscreen
Demisting ...................................... 119
Windscreen washer fluid
see Windscreen washer system
Windscreen washer system .............265
Notes ............................................. 316
Windscreen wipers
Problem (malfunction) ...................110
Rea rwindow wiper ........................ 109
Replacing the wiper blades ............109
Switching on/off ........................... 108
Winter operation
Important safety notes ..................294
Slippery road surfaces ...................149
Snow chains .................................. 295
Winter tyres
Limiting the speed (on-board com-
puter) ............................................. 203
M+S tyres ...................................... 294
Wiper blades
Cleaning ......................................... 269
Important safety notes ..................109
Replacing (on the rear window) .....110
Replacing (windscreen) ..................109
Wooden trim (cleaning instruc-
tions) .................................................. 272
Workshop see Qualified specialist workshop Index
19

If you remove the warning stickers, you or
others could be injured by failing to recognise
certain dangers.
When driving yourv ehicle observe the follow-
ing information:
R the safety notes in this manual
R the "Technical data" section in this manual
R traffic rules and regulations
R laws and safety standards pertaining to
moto rvehicles Implied warranty
! Observe the notes in these Operating
Instructions about the correct operation of
your vehicle as well as about possible dam-
age to the vehicle. Damage to your vehicle
that arises from culpable contravention of
these instructions is not covered by the
Mercedes-Benzi mplied warranty of
Daimler AG. Data stored in the vehicle
Fault data
Components critical for vehicle operation are
equipped with fault data memories as stand-
ard. There are also data storage devices
which record the technical reactions of vehi-
cle components to certain driving situations
(e.g. airbag deployment or ESP ®
interven-
tion).
This data is used exclusively to:
R assist in the rectificatio noffaults and
defects
R help Mercedes-Ben zoptimise and develop
vehicle functions
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced by Mercedes-
Benz, this technical information can be read
out from the fault memory. This is performed
by authorised employees of the Mercedes- Ben
zservice network using special diagnos-
tic computers.
After a fault has been rectified, the informa-
tion is deleted from the memory. Other mem-
ory data is constantly overwritten. Other devices that store data
Depending on the equipment level, your vehi-
cle may feature communications and/or
entertainment systems (e.g. navigation devi-
ces, telephone systems). These allow you to
save and edit data required for the operation
of the respective device.
Further information on operation (e.g. on
deleting data) can be found in the separate
operating instructions. Introduction
23 Z

Centre console
Centre console, upper section
Function Page
:
Audio system/COMAND
Online; see the separate
operating instructions
;
c
Seat heating 90
=
c
PARKTRONIC 163
?
¤
start/stop function 129 Function Page
A
£
Hazard warning
lamps 99
B
4
PASSENGER AIRBAG
OFF indicator lamp 49
C
Ú
Selects the drive pro-
gram 13732
Centre consoleAt a glance

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 22).Occupant safety
Important safety notes
G
WARNING
If service wor kis not carried out correctly, the
operating safety of your vehicle may be affec-
ted. This could cause you to lose control of
your vehicle and cause an accident. More-
over, the safety systems may no longer be
able to protect you or others as they are
designed to do.
Always have service work carried out at a
qualified specialist workshop. G
WARNING
Modifications to or work performed incor-
rectly on the following parts can result in the
restraint systems not functioning as intended:
R the restraint system, consisting of seat
belts and their anchorage points, belt ten-
sioners, belt force limiters and airbags
R the wiring
R networked electronic systems
Airbags and belt tensioners could fail to
deploy or be triggered in an accident despite
the deceleration force being sufficient to trig-
ger the systems, or could be triggered unin-
tentionally. For this reason, never make any
modifications to the restraint systems. Therefore, you must not tamper with elec-
tronic components or their software.
The seat belts, together with SRS (Supple-
mental Restraint System), are complemen-
tary, co-ordinated restraint systems
(Y page 39). They reduce the risk of injury
in specific, pre-defined types of accident sit-
uations and thereby increase occupant
safety. However, seat belts and airbags gen-
erally do not protect against objects pene-
trating the vehicle from the outside.
To ensure that the restraint systems can
deliver their full potential protection, make
sure that:
R the seat and head restraint are adjusted
properly (Y page 86).
R the seat belt has been fastened properly
(Y page 45).
R the airbags can inflate unrestricted if
deployed (Y page 40).
R the steering wheel is adjusted properly
(Y page 91).
R the restraint systems have not been modi-
fied.
An airbag increases the protection of vehicle
occupants wearing a seat belt. However, air-
bags are only an additional restraint system
which complements, but does not replace,
the seat belt. All vehicle occupants must wear
their seat belt correctly at all times, even if
the vehicle is equipped with airbags. The air-
bags are not deployed in all types of acci-
dents. For example, if the protective capacity
of correctly fastened seat belts is not
increased by deploying the airbags, the air-
bags will not deploy.
Airbag deployment only provides increased
protection if the seat belt is worn correctly.
The seat belt helps, firstly, to keep the vehicle
occupant in the best position in relation to the
airbag. Secondly, in a head-on collision, for
example, the seat belt prevents the vehicle
occupant from being propelledt owards the
point of impact. 38
Occupant safetySafety

SRS (Supplemental Restraint System)
Introduction SRS consists of:
R
the 6 SRS warning lamp
R airbags
R airbag control unit (with crash sensors)
R belt tensioners for the front seat belts and
the outer seat belts in the rear
R seat belt force limiters for the front seat
belts and the outer seat belts in the rear
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
forces to which occupants are subjected dur-
ing an accident.
SRS warning lamp G
WARNING
If SRS is malfunctioning, individual systems
may be triggered unintentionally or might not
be triggered in the event of an accident with
a high rate of vehicle deceleration.
A malfunction has occurred if:
R the 6 SRS warning lamp does not light
up when the ignition is switched on.
R the engine is running and the 6SRS
warning lamp does not go out after a few
seconds.
R the engine is running and the 6SRS
warning lamp lights up again.
In this case, have SRS checked immediately
at a qualified specialist workshop.
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. Triggering of belt tensioners, belt force
limiters and airbags During the first stage of a collision, the airbag
control unit evaluates important physical
data relating to vehicle deceleration or accel-
eration, such as:
R
duration
R direction
R magnitude
Based on the evaluation of this data, the air-
bag control unit pre-emptively triggers the
belt tensioners in the first stage.
i The front belt tensioners can only be trig-
gered if the seat belt tongues on the front
seats are correctly engaged in the seat belt
buckles.
If there is an even higher rate of vehicle decel-
eration or acceleration in a longitudinal direc-
tion, the front airbags are also deployed.
Your vehicle has adaptive, two-stage front air-
bags. The airbag control unit evaluates vehi-
cle deceleration or acceleration in the event
of a collision. In the first deployment stage,
the front airbag is filled with a portion of the
available propellant gas in order to reduce the
risk of injuries. If, within a few milliseconds,
the airbag control unit detects that the vehi-
cle is accelerating or decelerating at a greater
rate than originally anticipated, the front air-
bag is then filled with the maximum amount
of propellant gas.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
detected rate of deceleration or acceleration
of the vehicle. This process is pre-emptive in
nature. The triggering process must take
place in good time at the start of the collision.
i Not all airbags are deployed in an acci-
dent. The different airbag systems work
independently of each other. Occupant safety
39Safety Z

How the airbag system works is deter-
mined by predicting the severity of the acci-
dent, especially vehicle deceleration or
acceleration, and the type of accident:
R
head-on collision
R side impact
The rate of vehicle deceleration or accelera-
tion and the directio nofthe force are essen-
tially determined by:
R the distribution of forces during the colli-
sion
R the collision angle
R the deformation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a
decisive role in the deployment of an airbag,
nor do they provide an indication of airbag
deployment.
The vehicle may be deformed significantly,
e.g. the bonnet or the wing, without an airbag
being deployed. This is the case if only parts
which are relatively easily deformed are affec-
ted and the rate of deceleration is not high.
Conversely, airbags may be deployed even
though the vehicle suffers only minor defor-
mation. This is the case if, for example, very
rigid vehicle parts such as longitudinal body
members are hit, and sufficient deceleration
occurs as a result. Airbags
Important safety notes G
WARNING
Airbags provide additional protection; they
are not, however, a substitute for seat belts. Observe the following notes to reduce the risk
of serious or even fatal injury caused by airbag
deployment:
R
all vehicle occupants –inparticular, preg-
nant women – must wear their seat belt
correctly at all times and lean back against
the backrest, which should be positioned
as close to the vertical as possible. The
head restraint must support the back of the
head at about eye level.
R always secure childre nless than
1.50mt all or unde r12years of age in suit-
able child restraint systems.
R all vehicle occupants must select a seat
position that is as far away from the airbag
as possible. The driver's seat position must
allow the vehicle to be driven safely. The
driver's chest should be as far away from
the centre of the driver's airbag cover as
possible.
R move the front-passenger seat as far back
as possible. This is especially important if
you have secured a child in a child restraint
system on the front-passenger seat.
R vehicle occupants –inparticular, children
–m ust no tlean their heads into the area of
the window in which the sidebag/window-
bag is deployed.
R rearward-facing child restraint systems
must not be fitted to the front-passenger
seat unless the front-passenger airbag has
been disabled. On the front-passenger
seat, the front-passenger airbag is disabled
if a child restraint system with a trans-
ponder for automatic child seat recognition
is fitted to the front-passenger seat in a
vehicle equipped with automatic child seat
recognition. The 4PASSENGER AIRBAG
OFF indicator lamp must be continuously
lit.
If the front-passenger seat of your vehicle
does not have automatic child seat recog-
nition, or your rearward-facing child
restraint system does not have automatic
child seat recognition, children must be
secured in a child restraint system on a 40
Occupant safetySafety

suitable seat in the rear. If you secure a
forward-facing child restraint system to the
front-passenger seat, you must move the
front-passenger seat as far back as possi-
ble.
R make sure there are no heavy or sharp-
edged objects in the pockets of clothing.
R do not lean forwards, e.g. over the cover of
the driver's/front-passenger front airbag,
particularly when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel on the outside.
This allows the airbag to be fully deployed.
You could be injured if the airbag is
deployed and you are holding the inside of
the steering wheel.
R do not lean on the doors from inside the
vehicle.
R make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area where the airbags are
deployed.
R do not place any objects between the seat
backrest and the door.
R do not hang any hard objects, for example,
coat hangers, on the grab handles or coat
hooks.
R do not attach accessories, e.g. cup holders,
to the doors.
It is not possible to rule out a risk of injury
being caused by an airbag, due to the high
speed at which the airbag must be deployed. G
WARNING
Airbag functionality can only be assured if the
following parts are not covered and no badges
or stickers are attached to them:
R padded steering wheel boss
R kneebag cover below the steering column
R front-passenger airbag cover
R outer side of front seat bolsters
R side trim next to the rear seat backrest
R roof frame cover between the front A-pillar
and the C-pillar in the rear compartment G
WARNING
As mall amount of powder is released when
an airbag is deployed. The powder could
cause short-term breathing difficulties in peo-
ple with asthma or other respiratory prob-
lems.
In order to prevent breathing difficulties, you
should leave the vehicle as soon as it is safe
to do so. You can also open the window to
allow fresh air to enter the interior. The pow-
der does not constitute ahealth hazard and
does not indicate that there is a fire in the
vehicle. G
WARNING
The airbag parts are hot after the airbag has
been deployed. Do not touch them as you
could burn yourself.
Have the airbags replaced at a qualified spe-
cialist workshop. Otherwise, occupants are
not protected by the airbags in the event of
another accident.
Airbag deployment slows down and restricts
the movement of the vehicle occupant, com-
plementing the restraint of the seat belt.
If the airbags are deployed, you will hear a
bang and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard. The 6SRS warning lamp
lights up.
The airbag installation locations are identified
by the AIRBAG symbol.
Front airbags !
Do not place heavy objects on the front-
passenger seat. The system may then
detec tthat the seat is occupied and if there
is an accident, the restraint systems on the
front-passenger side could be deployed.
Have restraint systems that have been trig-
gered replaced. Occupant safety
41Safety Z

The fronta
irbags increase protection for the
driver's and front-passenger's head and
chest. Driver's airbag
:deploys in front of the
steering wheel; front-passenger front air-
bag ;deploys in front of and above the glove
compartment.
They are deployed:
R at the start of an accident with a high rate
of vehicle acceleration or deceleration in a
longitudinal direction
R if the system determines that airbag
deploymen tcan offer additional protection
to that provided by the seat belt
R depending on whether the seat belt is being
used
R independently of other airbag sinthe vehi-
cle
If the vehicle overturns, the front airbags are
generally not deployed unless the system
detects high vehicle deceleration in a longi-
tudinal direction.
Front-passenger airbag ;is only activated if
the system detects that the front-passenger
seat is occupied. The PASSENGER AIRBAG
OFF indicator lamp 4on the centre con-
sole is not lit (Y page 49). This means that
a child restraint system without automatic
child seat recognition has been fitted to the
front-passenger seat, or a child restraint sys-
tem with automatic child seat recognition has
been fitted incorrectly. Driver's kneebag
Driver's kneebag
:is always deployed along
with the driver's airbag and inflates under-
neath the steering column.
Driver's kneebag :increases the driver's
protection against:
R knee injuries
R thigh injuries
R lower leg injuries
Rear sidebags G
WARNING
If you wish to use seat covers, Mercedes-Benz
recommends that, for safety reasons, you
only use seat covers that have been approved
for Mercedes-Ben zvehicles.
The seat covers must have a special tear seam
for sidebags. Otherwise, the sidebags cannot
deploy correctly and would fail to provide the
intended protection in the event of an acci-
dent. Appropriate seat covers can be
obtained, for example, from a Mercedes-Benz
Service Centre.
When deployed, the sidebags offer additional
protection for the thorax of the vehicle occu-
pants on the side of the vehicle on which the
impact occurs .However, they do not protect
the:
R head
R neck
R arms 42
Occupant safetySafety