service indicator MERCEDES-BENZ B-CLASS HATCHBACK 2011 Owners Manual

Sensors (cleaning instructions)
.......270
Service Centre see Qualified specialist workshop
Service menu (on-board computer) .200
Service products Brake fluid ..................................... 315
Coolant (engine) ............................ 316
Engine oil ....................................... 314
Fuel ................................................ 312
Important safety notes ..................311
Washer fluid .................................. .316
Settings
Factory (on-board computer) .........204
On-board computer .......................200
Setting the air distribution ...............118
Setting the airflow ............................119
Shifting to neutral (manual trans-
mission) ............................................. 134
Short journeys (diesel particle fil-
ter) ...................................................... 146
Sidebag ................................................ 42
Side windows Convenience closing ........................81
Convenience opening ......................81
Important safety notes ....................79
Opening/closing .............................. 80
Problem (malfunction) .....................82
resetting .......................................... 81
Sliding sunroof
see Panorama sliding sunroof
Snow chains ...................................... 295
Socket Centre console .............................. 258
Luggage compartment ...................258
Points to observe before use .........257
Rea rcompartmen t......................... 258
Spare wheel
see Emergency spare wheel
Specialist workshop ............................ 22
Spectacles compartment .................245
Speed, controlling see Cruise control
Spee dLimit Assist
Activating/deactivating the warn-
ing function .................................... 198
Displayin g...................................... 198
Display message ............................ 222Display message in the multifunc-
tion displa
y.................................... 177
Function/notes ............................. 176
Important safety notes ..................176
Spee dlimiter
SPEEDTRONIC ............................... 151
Speedometer
Activating/deactivating the addi-
tional speedometer ........................200
Digita l............................................ 193
In the Instrument cluster .................28
Segments ...................................... 189
Selecting the unit of measure-
ment .............................................. 200
see Instrument cluster
SPEEDTRONIC
Deactivating variabl e..................... 153
Display message ............................ 226
Function/notes ............................. 151
Important safety notes ..................152
LIM indicator lamp .........................152
Permanent ..................................... 154
Selecting ........................................ 152
Storing the current spee d.............. 153
Variabl e......................................... 152
SRS (Supplemental Restraint Sys-
tem)
Display message ............................ 214
Introduction ..................................... 39
Warning lamp ................................. 238
Warning lamp (function) ................... 39
Starting (engine) ................................ 127
STEE RCONTROL .................................. 68
Steering (display message) ..............230
Steering wheel Adjusting (manually). .......................91
Button overview ............................... 31
Buttons (on-board computer) ......... 189
Cleaning ......................................... 272
Gearshift paddles ........................... 138
Important safety notes ....................91
Steering wheel gearshift paddles ....138
Stowage areas ................................... 244
Stowage compartment Spectacles compartment ...............245
Stowage compartments
Armrest (front) ............................... 245
Armrest (under) ............................. 24616
Index

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

You can also cancel the rear seat belt status
indicator immediately:
X
Press the aor% button on the steer-
ing wheel.
i The status indicator for the rear-compart-
men tseat belts is only available for certain
countries.
Belt tensioners, belt force limiters G
WARNING
If the seat belt tensioners have been trig-
gered, they provide no additional protection
in the event of another accident. Therefore,
have belt tensioners which have been trig-
gered replaced at a qualified specialist work-
shop.
Comply with safety regulations when dispos-
ing of belt tensioners. Any Mercedes-Benz
Service Centre can provide details of these
regulations.
! If the front-passenger seat is not occu-
pied, do not engage the seat belt tongue in
the buckle on the front-passenger seat.
Otherwise, the belt tensioner could be trig-
gered in the event of an accident.
The fron tseat belts are equipped with belt
tensioners and belt force limiters. The outer
seat belts in the rear are equipped with seat
belt tensioners.
The belt tensioners tighten the seat belts in
an accident, pulling them close against the
body.
Belt tensioners do not correct incorrect seat
positions or incorrectly fastened seat belts.
Belt tensioners do not pull vehicle occupants
back towards the backrest.
When triggered, seat belt force limiters help
to reduce the peak forc eexerted by the seat
belt on the vehicle occupant.
The front belt force limiters are synchronised
with the front airbags, which take on a part of
the deceleratio nforce. Thus, the force exer- ted on the occupant is distributed over a
greater area.
The belt tensioners can only be activated
when:
R the ignition is switched on.
R the restraint systems are operational; see
"SRS warning lamp" (Y page 39).
R the belt tongue is engaged in the buckle on
each of the three-point seat belts in the
front.
The belt tensioners on the outside seats in the
rear compartment are triggered independ-
ently of the lock status of the seat belts.
The belt tensioners are triggered depending
on the type and severity of an accident:
R in the event of a head-on or rear-end colli-
sion if the vehicle decelerates or acceler-
ates rapidly in a longitudinal direction dur-
ing the initial stages of the impact
R in the event of a side impact if the vehicle
is subjected to high lateral acceleration/
deceleration
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. Children in the vehicle
Child restraint systems
Important safety notes G
WARNING
To reduce the risk of serious or even fatal
injury to the child in the event of a sudden
change in direction, braking or an accident:
R children less than 1.50 m tall and under
twelve years of age must always be secured
in special child restraint systems on a suit-
able vehicle seat. This is necessary Children in the vehicle
47Safety
Z

Mercedes-Ben
zrecommends that you only
use the child restraint systems listed at
(Y page 60).
You can obtain further information about the
correct child restraint system from any
Mercedes-Benz Service Centre.
i It is advisable to use Mercedes-Benzc are
products to clean child restraint systems.
You can obtain informatio nabout this at
any Mercedes-Benz Service Centre.
Child seat on the front-passenger seat G
WARNING
If the front-passenger airbag is not disabled:
R a child secured in a child restraint system
on the front-passenger seat could be seri-
ously and even fatally injured by the front-
passenger airbag deploying. This is espe-
cially a risk if the child is in the immediate
vicinity of the front-passenger airbag when
it deploys.
R never secure a child on the front-passenger
seat in a rearward-facing child restraint sys-
tem. Only secure a rearward-facing child
restraint system on a suitable rear seat.
R always move the front-passenger seat to
the rearmos tposition if you secure a child
in a forward-facing child restraint system
on the front-passenger seat.
The front-passenger airbag is not disabled:
R on vehicles without automatic child seat
recognition on the front-passenger seat
R in vehicles with automatic child seat rec-
ognition in the front-passenger seat, if no
special child restraint system with trans-
ponders for automatic child seat recogni-
tion in the front-passenger seat has been
fitted
R on vehicles with automatic child seat rec-
ognition on the front-passenger seat, if the
PASSENGER AIRBAG OFF indicator lamp
4 is not lit.
To make you aware of this danger, a corre-
sponding warning sticker has been affixed on the dashboard and on both sides of the sun
visor on the front-passenger side.
Information about recommended child
restraint systems is available at any
Mercedes-Benz Service Centre.
Warning notice on the front-passenger sun visor
Warning symbol for a rearward-facing child
restraint system
Do not use a rearward-facing child restraint
system for a child on
aseat which is already
protected by an airbag.
Automatic child seat recognition on the
front-passenger seat G
WARNING
If the 4 PASSENGER AIRBAG OFF indica-
tor lamp does not light up when the child
restraint system is fitted, the front-passenger
airbag has not been disabled. If the front-
passenger airbag deploys, the child could be
seriously or even fatally injured. Children in the vehicle
49Safety
Z

Problems with child seat recognition
Problem Possible causes/consequences and
M Solutions
The
4 PASSENGER
AIRBAG OFF indicator
lamp on the centre con-
sole is lit. As
pecial Mercedes-Benz child seat with a transponder for auto-
matic child seat recognition has been fitted to the front-passenger
seat. The front-passenger fron tairbag has therefore been disabled
as desired. G
Risk of injury
There is no child seat fitted to the front-passenger seat .Automatic
child seat recognition is malfunctioning.
It is also possible that the 6SRS warning lamp light sup and/
or the 4PASSENGER AIRBAG OFF indicator lamp does not light
up briefly when you switch the ignition on.
X Remove electronic equipment from the front-passenger seat,
e.g.:
R
laptop
R mobile phone
R cards with transponders, such as ski passes or access cards
If the 4 PASSENGER AIRBAG OFF indicator lamp is still lit:
X Visit a qualified specialist workshop. Integrated child seat (ICS)
Important safety notes
G
WARNING
To reduce the risk of serious or even fatal
injury to the child in the event of a sudden
change in direction, braking or an accident:
R you must follow the manufacturer's instal-
lation instructions for the child seat when
fitting the integrated child seat (ICS) pad-
ded play table and side head restraint and
when fastening the seat belt.
R do not modify the integrated child seat, the
ICS padded play table or the side head
restraint. Do not use protective covers.
R make sure that the ICS padded play table
and the side head restraints do not become trapped or damaged. This could happen
when you
- close the doors
- adjust the seat
- store the ICS padded play table and the
side head restraints
- transport heavy objects
R replace the integrated child seat, the pad-
ded play table and the side head restraints
if these were damaged or subjected to
heavy loads during an accident.
R note: children who weigh less than
12.5 kg require a different child restraint
system. Information about other child
restraint systems is available from any
Mercedes-Benz Service Centre.
R the vehicle's rear seat backrest must be
locked in position.
The integrated child seats are integrated into
the right and left-hand rear seat cushions. In Children in the vehicle
53Safety Z

i
Should a side head restraint be required
for the second integrated child seat, this
can be ordered at any Mercedes-Benz
Service Centre. G
WARNING
If you do not secure the side head restraint at
the anchor points intended, it canno tprovide
the intended level of protection. It would then
not be possible to protect the child in the
event of an accident, sudden braking or
abrupt change in directio nand this could
result in serious or even fatal injury to the
child.
Only attach the side head restraint to the
intended anchor points on the rea rhead
restraint.
For safety reasons, Mercedes-Benz recom-
mends that you only use side head restraints
which have been approved by Mercedes-Benz
for your vehicle.
Fitting side head restraints
X Slide head restraint ;upwards and posi-
tion it upright.
X Slide side head restraints Bfrom the front
to the centre of both head restraint bars
until they engage.
Right lock verification indicator :and left
lock verification indicator =must be fol-
ded in. The red surfaces are no longer visi-
ble.
X Make sure that side head restraint Bis
engaged in both head restraint bars. X
Slide head restraint ;downwards
(Y page 89) until it rests on the upper
edge of side head restraints B.
X Guide the seat belt through seat belt guide
A on the door side on side head restraint
B.
X Secure the child (Y page 54).
i When using the integrated child seat with
the ICS padded play table, the seat belt is
not guided through the seat belt guide on
the side head restraint.
Removing the side head restraints
X Take the seat belt out of seat belt guide
A.
X Move head restraint ;upwards.
X Press left or right release button ?and pull
side head restraint Bforward to remove
it.
Right lock verification indicator :and left
lock verification indicator =fold out
briefly.
X Adjust head restraint ;(Ypage 89).
Storing the padded table and the side
head restraints G
WARNING
Secure the ICS padded play table and the side
head restraints in the vehicle as specified;
otherwise, they may come loose. In the event
of an accident, sudden braking or abrupt
change in direction, they could injure vehicle
occupants or cause damage to the vehicle.
When you are not using the ICS padded play
table and the side head restraints, store these
in a suitable place, such as the boot.
On vehicles with a TIREFIT kit, for example,
you can store the side head restraints in the
stowage compartment under the luggage
compartment floor (Y page 253). Children in the vehicle
57Safety Z

R
the seat belt is fastened.
R you depress the accelerator pedal.
If the transmission is in position R, the tailgate
must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted ou toftransmission posi-
tion Por you have previously drive nfaster
than 3 km/h.
Emergency braking The vehicle can also be braked during an
emergency using the electric parking brake.
X While driving, push handle :of the electric
parking brake (Y page 145).
i The vehicle is braked for as long as han-
dle :of the electric parking brake
pressed. The longer the electric parking
brake handle :is depressed, the greater
the braking force.
During braking:
R a warning tone sounds.
R the Release park. brake message
appears.
R the red !indicator lamp in the instru-
men tcluste rflashes.
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged. Parking up the vehicle
If you leave the vehicle parked up for longer
than four weeks, the battery may be damaged
by exhaustive discharging.
X Have the battery disconnected at a quali-
fied specialist workshop or connec ta
trickle charger. If you leave the vehicle parked up for longer
tha
nsix weeks, the vehicle may suffer dam-
age as a result of lack of use.
X Visit a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers fro maqualified specialist work-
shop. Driving tips
General driving tips
Coasting with the engine switched off G
WARNING
Never switch the engine off while the vehicle
is in motion.
There is no power assistance for the steering
and the service brake when the engine is not
running.
You will require considerably more effor tto
steer and brake, and you could therefore lose
control of the vehicle and cause an accident. Short journeys
! Vehicles with adiesel particle filter: if
the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur during the automatic cleaning of the
diesel particle filter. This may lead to fuel
collecting in the engine oil and cause
engine failure. Therefore, if you frequently
drive short distances, you should take a 20
minute trip on a motorway or rural road at
least every 500km. Brakes
Important safety notes G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could 146
Driving tipsDriving and parking

Display messages Possible causes/consequences and
M Solutions
Telephone No
service Your vehicle is outside the network provider's transmitter/
receiver range.
X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Top
up washer fluid The washer fluid level in th
ewasher fluid reservoir has dropped
below the minimum.
X Top up the washe rfluid (Y page 265). Key
Displa
ymessages Possible causes/consequences and
M Solutions
+
Key does not
belong to vehicle You have put the wrong key in the ignitio
nlock.
X Use the correct key. +
Replace key The key needs to be replaced.
X Visit a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
Seat belts
Problem Possible causes/consequences and
M Solutions
ü
Only for certain coun-
tries: the red seat belt
warning lamp lights up
for six seconds after
the engine starts. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt (Y page 44).ü
Only for certain coun-
tries: the red seat belt
warning lamp lights up
after the engine starts.
In addition, a warning
tone sounds for up to
six seconds.
The driver's seat belt is not fastened.
X
Fasten your seat belt (Y page 44).
The warning tone ceases. Warning and indicator lamps in the instrument cluster
231On-board computer and displays Z

Battery acid is caustic.
Avoid contact with the skin,
eyes or clothing.
Wea
rsuitable protective
clothing, in particular
gloves, an apro nand a face
mask.
Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary. Wear eye protection.
Keep children away.
Observe this Owner's Man-
ual.
G
WARNING
For safety reasons, Mercedes-Benz recom-
mends tha tyou only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event
of an accident.
To prevent acid burns, observe the following
safety notes when handling batteries:
R do not lean over the battery.
R do not place any metal objects on a battery.
Otherwise, you could cause a short circuit
and the battery's gas mixture could ignite.
R make sure that you do not create an elec-
trostatic charge, e.g. by wearing synthetic
clothing or as a result of friction on fabrics.
Therefore, you should not pull or slide the
battery over carpets or other synthetic
materials. R
never touch the battery first. To discharge
a possible electrostatic charge, step out of
the vehicle first and touch the bodywork.
R do not wipe the battery using a cloth. The
battery may explode as a result of electro-
static charge or due to flying sparks. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner
.Take discharged
batteries to a qualified spe-
cialis tworkshop or to a col-
lection point for used batter-
ies.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the Service
Booklet or contact a qualified specialist
workshop for more information.
! You should have all work involving the
battery carried out at aqualified specialist
workshop. In the exceptional case that it is
necessary for you to disconnect the battery
yourself, make sure that:
R you switch off the engine and remove the
key. On vehicles with KEYLESS-GO,
ensure that the ignition is switched off.
Chec kthat all the indicator lamps in the
instrument cluster are off. Otherwise,
electronic components, such as the
alternator, may be damaged.
R you first remove the negative terminal
clamp and then the positive terminal
clamp. Never swap the terminal clamps. Battery
281Breakdown assistance Z

The tyre pressure warning system does not
warn you of an incorrectly set tyre pressure.
Observe the notes on the recommended tyre
pressure (Y page 295).
The tyre pressure loss warning system does
not replace the need to regularly check your
vehicle's tyre pressures, since an even loss of
pressure on several tyres at the same time
cannot be detected by the tyre pressure loss
warning system.
The tyre pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tyre is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering manoeuvres.
The function of the tyre pressure loss warning
system is limited or delaye dif:
R snow chains are fitted to you rvehicle's
tyres.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration).
R you are towing a very heavy or large trailer.
R you are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tyre pressure loss warn-
ing system Restart the tyre pressure loss warning system
if you have:
R changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
X Before restarting, consult the table of tyre
pressures on the inside of the fuel filler flap
to ensure that the tyre pressure in all four
tyres is set correctly for the respective
operating conditions.
The tyre pressure loss warning system can
only give reliable warnings if you have set
the correct tyre pressure. If an incorrect tyre pressure is set, these incorrect values
will be monitored.
X Observe the notes in the section on tyre
pressures (Y page 295).
X Make sure that the key is in position 2in
the ignition lock.
X Press the =or; button to select the
Service menu.
X Press the 9or: button to select
Tyre pressure .
X Press the abutton.
The Run Flat Indicator active Restart with OK message appears in the
multifunction display.
If you wish to confirm the restart:
X Press the abutton.
The Tyre press. now OK? message
appears in the multifunction display.
X Press the 9or: button to select
Yes .
X Press the abutton.
The Run Flat Indicator restarted message appears in the multifunction dis-
play.
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
or
If you wish to cancel the restart:
X Press the %button.
or
X If the Tyre press. now OK? message
appears, use the 9or: button to
select Cancel .
X Press the abutton.
The tyre pressure values stored at the last
restart will continue to be monitored. Tyre pressure
297Wheels and tyres Z