2011 MERCEDES-BENZ B-CLASS HATCHBACK warning light

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

R
is routed as low as possible across the pel-
vic area, in front of the hips
R is tightened across the lap by pulling
upwards on the shoulder section of the seat
belt
R is tigh tand is routed across the centre of
the child's shoulder
R is not twisted and does not pass across the
child's neck or under the child's arm
X Adjust the head restraint if necessary; see
(Y page 89).
Folding in the chil dseat X
Pull release handle :forwards.
X Push the centre of the integrated child seat
forwards and down ;until it engages.
Padded table for the integrated child
seat Important safety notes
G
WARNING
If the ICS padded play table is not installed
and used correctly on the integrated child
seat, it cannot provide the intended protec-
tion. It would then not be possible to restrain
the child in the even tofanaccident, sudden
braking or abrup tchange in direction and this
could result in serious or even fatal injury to
the child. For this reason, observe the follow-
ing description when fitting the ICS padded
play table: The ICS padded play table is only suitable for
use together with the folded out integrated
child seat.
On the rear seats, only use the ICS padded
play table which is recommended for
Mercedes-Ben
zvehicles.
An incorrectly fitted ICS padded play table
could come loose and seriously or even fatally
injure the child or other vehicle occupants.
After fitting the ICS padded play table, make
sure that it is secured correctly. G
WARNING
Do not modify the ICS padded play table, inte-
grated child seat or seat belts. The ICS pad-
ded play table must not be used without a
cover. The cover must not be removed from
the ICS padded play table or replaced with a
cover from another manufacturer. Otherwise,
the official approval is invalidated and the
padded play table's protective function could
be restricted.
Do not subject the ICS padded play table to
unnecessary heat or expose it to direct sun-
light. Parts of the ICS padded play table could
heat up and the child could burn itself on
them. 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 observe the following description when fit-
ting the ICS padded play table.
R do not modify the ICS padded play table.
R when the child seat is occupied, adjust the
head restraint to a position at which the
back of the child's head is supported by the
centre of the head restraint at about eye
level.
R replace a damaged ICS padded play table
or one that has been subjected to a load in
an accident.
R be aware that children under two years of
age or children weighing less than 12.5kg
require a different child restraint system. Children in the vehicle
55Safety
Z

Weight
catego-
ries Size cate-
gory Manufac-
turer Type Approval
number
(E1 ...) Order
number Auto-
matic
chil
dseat
recogni-
tion Group 0+:
up to
13 kg
E Britax
Römer BABY SAFE
ISOFIX
PLUS 04 301146 B6 6 86
8224 No
D – – – – –
C – – – – –
Group I:
9to 18 kg
D – – – – –
C – – – – –
B – – – – –
B1 Britax
Römer DUO PLUS 04 301133 A000 970
11 00 Yes
A 000 970
16 00 No
A – – – – –
Child-proof locks
Important safety notes G
WARNING
Activate the child-proof locks for the rear
doors and the override switch for the rear
windows when children are travelling in the
vehicle. Otherwise, the children could open
doors or side windows while th evehicle is in
motion and injure themselves or others. G
WARNING
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system. They could injure them-
selves on parts of the vehicle. They could also
be seriously or even fatally injured by pro-
longed exposure to extreme heat or cold.
Do not expose the child restraint system to
direct sunlight. Parts of the child restraint sys- tem could heat up and the child could burn
herself/himself on them.
If a child opens a door, the child or other per-
sons could be injured as a result. They could
get out and injure themselves or be injured by
a passing vehicle.
Also observe the notes on HOLD
.Relevant
information can be found in the index.
Child-proof locks for the rear doors Children in the vehicle
61Safety Z

ABS (Anti-lock Braking System)
Important safety notes G
WARNING
If AB Sis faulty, the wheels could lock when
braking. This limits the steerability of the vehi-
cle when braking and the braking distance
may increase.
If ABS is deactivated due to a malfunction,
then BAS and ESP are also deactivated. There
is an increased risk of your vehicle skidding in
certain situations.
You should always adapty our driving style to
suit the prevailing road and weather condi-
tions.
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the vehi-
cle when braking.
ABS works from a speed of about 8 km/h
upwards, regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently.
The yellow !ABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running.
i Observe the "Important safety notes" sec-
tion (Y page 62).
Brakes G
WARNING
Do not depress the brake pedal several times
in quick succession (pumping). Pumping the
brake pedal reduces the braking effect .You
might otherwise not be able to stop the vehi-
cle in time and could cause an accident.
Depress the brake pedal firmly and smoothly.
X If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over.
X To make a full brake application:
depress the brake pedal with full force. If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions and func-
tions as a reminder to take extra care while
driving.
BAS (Brake Assist)
G
WARNING
If BAS has malfunctioned, the braking system
remains available with full brake boosting
effect. However, braking force is not auto-
matically increased in emergency braking sit-
uations and the stopping distance may
increase.
X Keep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
i Observe the "Important safety notes" sec-
tion (Y page 62). COLLISION PREVENTION ASSIST
General notes COLLISION PREVENTION ASSIST consists of
the BAS PLUS system and the distance warn-
ing signal, which are described in the follow-
ing.
Distance warning
G
WARNING
The distance warning signal cannot always
clearly identify objects and complex traffic
situations. Driving safety systems
63Safety
Z

In such cases, the distance warning signal
may:
R
give an unnecessary warning
R not give a warning
There is a risk of an accident. Always pay par-
ticula rattention to the traffi csituation and be
ready to brake, especially if the distance
warning signal alerts you. G
WARNING
The distance warning signal does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
Thus, the distance warning signal cannot pro-
vide a warning in all critical situations .There
is a risk of an accident. Always pay careful
attention to the traffic situation and be ready
to brake.
X To activate/deactivate: activate or deac-
tivate the distance warning signal in the on-
board computer (Y page 199).
When the distance warning signal is activa-
ted, the multifunction display shows the
Ä symbol as long as the HOLD function is
not activated (Y page 162). On vehicles with
Active Parking Assist, the Äsymbol is dis-
played when position Pis engaged or you are
driving faster than 35 km/h.
The distance warning signal can help you to
minimise the risk of a front-end collision with
a vehicle ahead or reduce the effects of such
a collision. If the distance warning signal
detects that there is a risk of a collision, you
will be warned visually and acoustically .The
distance warning signal cannot prevent a col-
lision without your intervention.
The distance warning signal will issue a warn-
ing at speeds of around 30 km/h or more if:
R the distance to the vehicle in front is too
short for the speed you are driving at for
several seconds. The ·distance warn- ing lamp then lights up in the instrument
cluster.
R you are rapidly approaching the vehicle in
front. An intermittent warning tone will
then sound and the ·distance warning
lamp will light up in the instrumentc luster.
X Brake immediately in order to increase the
distance from the vehicle in front.
or
X Take evasive action provided it is safe to do
so.
For the distance warnin gsignal to assist you
when driving, the function must be activated
in the on-board computer (Y page 199) and
be operational.
Due to the nature of the system, particularly
complicated driving conditions may cause the
system to display an unnecessary warning.
With the help of the radar sensor system, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
At speeds up to approximately 70 km/h, the
distance warning signal may also detect sta-
tionary obstacles, for example, stopped or
parked vehicles.
If you approach an obstacle and the distance
warning signal detects a risk of a collision, the
system will initially alert you both visually and
acoustically.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example, in multi-storey car parks
R a narrow vehicle travelling in front, e.g. a
motorbike
R a vehicle travelling in front on a different
line
Following damage to the front end of the vehi-
cle, have the configuration and operation of 64
Driving safety systemsSafety

Adaptive brake lamps
If you brake sharply from a speed of more
than 50 km/h or if braking is assisted by BAS
or BA SPLUS, the brake lamps flash rapidly.
In this way, traffic travelling behind you is
warned in an even more noticeable manner.
If you brake sharply from a speed of more
than 70 km/h to a standstill, the hazard warn-
ing lamps are activated automatically. If the
brakes are applied again, the brake lamps
lightu p continuously. The hazard warning
lamps switch off automatically if you travel
faster than 10 km/ h.You can also switch off
the hazard warning lamps using the hazard
warning switch button (Y page 99).
i Adaptive brake lamps are only available in
certain countries. ESP
®
(Electronic Stability Program)
Important safety notes G
WARNING
If the ÷ warning lamp in the instrument
cluster flashes, proceed as follows:
R do not deactivate ESP ®
under any circum-
stances.
R only depress the accelerator pedal as far as
necessary when pulling away.
R adapt your driving style to suit the prevail-
ing road and weathe rconditions.
Otherwise, the vehicle could go into a skid.
ESP ®
cannot reduce the risk of an accident if
you drive too fast. ESP ®
cannot override the
laws of physics.
! Switch the ignition off when:
R the electric parking brake is being tested
using a brake dynamometer.
R the vehicle is being towed with the front/
rear axle raised.
Application of the brakes by ESP ®
may oth-
erwise destroy the brake system. If ESP
®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilise the
vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
assists
the driver when pulling away on wet or slip-
pery roads. ESP ®
can also stabilise the vehi-
cle during braking.
If ESP ®
intervenes, the ÷ESP®
warning
lamp flashes in the instrument cluster.
i Observe the "Important safety notes" sec-
tion (Y page 62).
i Only use wheels with the recommended
tyre sizes. Only then will ESP ®
function
properly.
Traction control Traction control is part of ESP
®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side.
Traction control remains active if you deacti-
vate ESP ®
.
i Observe the "Important safety notes" sec-
tion (Y page 62).
Deactivating/activating ESP ® G
WARNING
ESP ®
is deactivated if the åwarning lamp
in the instrument cluster lights up continu-
ously when the engine is running.
If the ÷ warning lamp and åwarning
lamp are lit continuously, ESP ®
is not availa-
ble due to a malfunction.
There is an increased risk of your vehicle skid-
ding in certain situations.
You should always adapt your driving style to
suit the prevailing road and weather condi-
tions. 66
Driving safety systemsSafety

ESP
®
is activated automaticall ywhen the
engine is started.
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in
the instrumentc luster flashes.Insuch situa-
tions, ESP ®
will no tstabilise the vehicle.
X To deactivate:( Ypage 198).
The å ESP®
OFF warning lamp in the
instrument cluste rlights up.
X To activate:(Y page 198).
The å ESP®
OFF warning lamp in the
instrumen tcluster goes out.
It may be best to deactivate ESP ®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel G
WARNING
Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehicle
if the vehicle starts to skid or a wheel starts
to spin.
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability.
R the engine's torque is no longer limited, and
the drive wheels can spin .The spinning of
the wheels results in a cutting action, which
provides better grip.
R traction control is still activated.
R ESP ®
still provides support when you
brake.
i Vehicles with ECO start/stop function:
the ECO start/stop function switches the
engine off automatically when the vehicle
comes to a stop. When pulling away again,
the engine starts automatically .ESP ®
remains in its previously selected status.
Example: if ESP ®
was deactivated before
the engine was switched off, ESP ®
remains deactivated when the engine is switched on
again.
i Observe the "Important safety notes" sec-
tion (Y page 62).
ESP ®
trailer stabilisation G
WARNING
If road and weather conditions are poor,
traile rstabilisation will not be able to prevent
the trailer fro mswerving and will thus be
unable to reduce the risk of an accident. Trail-
ers with a high centre of gravity can tip over
before ESP ®
can detect this.
If your vehicle/trailer combination begins to
lurch, you can only stabilise the vehicle/
trailer combination by depressing the brake
firmly.
In this situation, ESP ®
assists you and can
detect if the vehicle/trailer combination
begins to lurch. ESP ®
slows the vehicle down
by braking and limiting the engine output until
the vehicle/trailer combination has stabi-
lised.
Trailer stabilisation is active above speeds of
about 65 km/h.
Trailer stabilisation does not work if ESP ®
is
deactivated or disabled because of a mal-
function. EBD (electronic brake force distribu-
tion)
G
WARNING
If EB Dhas malfunctioned, the braking system
remains available with full brake boosting
effect .However, the rear wheels can still lock,
e.g. under full braking. This could cause you
to lose control of your vehicle and cause an
accident .You should therefore adapt your
driving style to the different handling charac-
teristics. Driving safety systems
67Safety Z

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).Key
Important safety notes
G
WARNING
If children are lef tunsupervised in the vehicle,
they could:
R open a door from inside the vehicle at any
time, eve nifithas been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for a short time. G
WARNING
Do not attach any heavy or large key rings to
the key that is inserted in the ignition .Ifakey
ring is too heavy or too large, the weight acting
on the key could cause it to tur ninthe ignition
lock or catch on the steering wheel. This could
cause the engine to be switched off suddenly.
You could lose control of the vehicle and
cause an accident.
Do not use the key in the vicinity of strong
magnetic fields. Otherwise, the remote con-
trol function could be affected. Do not keep the key together with:
R
electronic devices, e.g. a mobile phone or
another key
R metallic objects, e.g. coins or metal foil Key functions
:
& To lock the vehicle
; % To unlock the vehicle
X To unlock centrally: press the%but-
ton.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle is locked again.
R the anti-theft system is primed again.
X To lock centrally: press the&button.
The key centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 202).
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y page 203).72
KeyOpening and closing