2008 MERCEDES-BENZ B-CLASS HATCHBACK warning lights

3A
ABS (Anti-lock Braking System).......... 55
Display messages ...........204, 205, 206
Warning lamp.................................. 224
Acceleration
Technical data. ............................... 280
Accident
Notes. ............................................. 231
Active head restraint ...........................42
Active light function see Active light function
Active Light System
Display message ............................. 216
Active Park Assist
Display messages ........................... 210
Active parking assist......................... 122
Trailer towing. ................................. 126
Active Service System PLUS
see Service interval display
Adaptive brake lamps ..........................56
Airbags Activation.......................................... 37
Control unit....................................... 37
Driver's ............................................. 40
Front. ................................................ 40
Front passenger ................................ 40
Head/thorax airbags. .......................41
PASSENGER AIRBAG OFF warning
lamp .............................................. 223Sidebags.
.......................................... 41
System.............................................. 39
Windowbags. .................................... 42
Air conditioning
Activating/deactivating ..................134
Activating/deactivating air-recir-
culation mode. ................................ 140
Air-conditioning system ..................131
Controlling automatically. ...............135
Convenience opening/closing
(air-recirculation mode). .................140
Cooling with air dehumidification ...135
Demisting the windscreen ..............138
Heatmatic. ...................................... 130
Malfunction indicator lamp. ............222
Misted-up windows. ........................139
Rear window heating ......................139
Setting the air distribution. .............137
Setting the airflow .......................... 138
Setting the air vents .......................136
Setting the temperature .................135
Switching the residual heat func-
tion on/off ...................................... 141
Thermotronic .................................. 133
Air-conditioning system
see Air conditioning
Air pressure
see Tyre pressure
Antifreeze concentration.......... .298, 299 Anti-lock braking system
see ABS
Anti-theft alarm system
see ATA
Anti-theft systems................................ 57
Armrest
Front seat (adjusting)........................ 67
Rear seat (adjusting).. .......................67
Removing/fitting. ........................... 147
Ashtray ................................................ 161
ASSYST PLUS see Service interval display
ASSYST PLUS service indicator ........191
ATA (anti-theft alarm system) .............57
Switching off the alarm. ....................57
Audible warning signal ......................230
Audio DVD Operating (on-board computer). .....103
AUTO lights
Display message ............................. 216
Automatic car wash ...........................193
Automatic engine start Using the ECO Start-Stop function ...90
With ECO start/stop function ...........87
Automatic transmission
Changing gear yoursel f..................... 93
Display message ............................. 209
Driving tips ....................................... 95
Emergency running mode ...............235
Malfunction..................................... 235 Index
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8
Instrument cluster
............................... 96
Overview. .......................................... 26
Selecting the language (on-board
computer). ...................................... 107
Instrument lighting.............................. 97
Integrated child seat............................ 50
Interior lighting Automatic control system .................81
Delayed switch-off (on-board
computer). ...................................... 109
Emergency lighting. ..........................81
Manual control.................................. 80
Reading lamp .................................... 80
Interior motion sensor......................... 58
ISOFIX child seat securing system .....48 J
Jack...................................................... 200 Operation........................................ 258
Jump-starting ...................................... 266
Jump leads ...................................... 266K
Key......................................................... 60 Changing the battery ......................244
Checking the battery ......................244
Display message ............................. 220
Loss. ............................................... 239Malfunction..................................... 239
Modifying the programming. .............60
Key positions
Key. .................................................. 62
Kickdown.............................................. 95 L
Lamp Display message ............................. 216
Lamps
see Warning and indicator lamps
Lashing eyelets.................................. 146
Licence plate lighting Display message ............................. 218
Lighting
see Lights
Lights
Automatic headlamp mode. ..............77
Constant headlamp mode. ................77
Cornering light function ....................80
Dipped-beam headlamps ..................77
Display messages ........................... 216
Foglamps. ......................................... 77
Hazard warning lamps. .....................79
Headlamp flasher.............................. 78
Headlamp range. .............................. 79
Light switch. ..................................... 76
Main-beam headlamps..................... .78
Rear foglamp .................................... 77Switching off (display message)...... 218
Turn signals.
..................................... 78
LIM indicator lamp
Cruise control. ................................ 115
Variable Speedtronic. .....................117
Load compartment load, maximum
..................................................... 287, 288
Loading guidelines .............................144
Locking Automatic. ........................................ 61
Emergency locking .........................242
From the inside (central locking
button) .............................................. 61
Luggage compartment enlarge-
ment.................................................... 149
Luggage compartment floor Adjusting the height .......................154
stowage well, unde r........................ 153
Luggage cover .................................... 157
Luggage net........................................ 144
Lumbar support .................................... 68 M
Main-beam headlamps Display message ............................. 218
Main fuse box..................................... 271
Maintenance Battery ............................................ 263Index
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Occupant safety
37carry out any modifications on the restraint
systems.
Never tamper with electronic components
and their software.
SRS (Supplemental Restraint System)
The SRS reduces the risk of occupants com-
ing into contact with the vehicle's interior in
the event of an accident. It can also reduce
the forces to which occupants are subjected
during an accident.
The SRS consists of:
R The 1 warning lamp
R belt tensioners
R belt force limiters
R airbags
The 1 1 warning lamp The SRS functions are checked regularly
when you turn on the ignition and when the
engine is running. Malfunctions can therefore
be detected in good time.
The
1 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. G
Risk of injury
If SRS is malfunctioning, individual systems
may be activated unintentionally or not be
deployed in the event of an accident with
heavy braking.
A malfunction has occurred if the +
warning lamp:
R does not light up when you switch on the
ignition
R does not go out after the engine has been
running for a few seconds
R lights up again once the engine is running
In this case, have SRS checked immedi-
ately at a qualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags In the event of a collision, the sensor in the
airbag control unit evaluates important phys-
ical data such as duration, direction and force
of the vehicle deceleration or acceleration.
Based on the evaluation of this data and
depending on the vehicle's rate of longitudi-
nal deceleration in a collision, in the first
stage the airbag control unit pre-emptively
triggers the belt tensioners. The front airbags are only deployed if there is
an even higher rate of vehicle deceleration in
a longitudinal direction.
Your vehicle has adaptive, dual stage front
airbags. When the first activation threshold is
reached, the front airbag is filled with enough
propellant gas to reduce the risk of injuries.
The front airbag is only fully inflated if a sec-
ond threshold is reached within a few milli-
seconds, due to the control unit having detec-
ted further deceleration.
Criteria for triggering belt tensioners and
airbags
In the first stage of a collision, the airbag con-
trol unit evaluates the duration and direction
of vehicle acceleration or deceleration in
order to determine whether it is necessary to
trigger the belt tensioner and/or airbag.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
rate of deceleration of the vehicle. This proc-
ess is pre-emptive in nature as the airbag
must be deployed during – and not at the end
of – the collision.
i Airbags are not deployed in all types of
accidents. They are controlled by complex
sensor technology and evaluation logic.
This process is pre-emptive in nature as Safety
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Occupant safety
38airbag deployment must take place during
the impact and must be adapted to provide
calculated, additional protection for the
vehicle occupants. Not all airbags are
deployed in an accident.
The different airbag systems work inde-
pendently of each other. However, the
deployment of each individual system will
depend on the type of accident determined
by the control system in the first stages of
the collision (head-on collision, side impact
and overturn) and the extent of the acci-
dent (in particular, the vehicle's rate of
deceleration or acceleration).
The rate of vehicle deceleration or accelera-
tion and the direction of the force are basi-
cally 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, e.g. the other vehi-
cle
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 it.
The vehicle may be deformed significantly,
e. g. on the bonnet or the wing, without an
airbag being deployed. This is the case if only
parts which are relatively easily deformed are
affected and the necessary deceleration does
not occur. Conversely, airbags may be
deployed even though the vehicle suffers only
minor deformations. This is the case if, for
example, very rigid vehicle parts such as lon-
gitudinal body members are affected and suf-
ficient deceleration occurs as a result.
Belt tensioners, belt force limiters The front seat belts and the outer seat belts
in the rear are equipped with belt tensioners.
If the seat belt is also equipped with a belt
force limiter, the force exerted by the seat
belt on the seat occupant is reduced.
Belt tensioners tighten the seat belts in an
accident, pulling them close against the body.
i Belt tensioners do not correct incorrect
seat positions or incorrectly fastened seat
belts.
Belt tensioners do not pull occupants back
towards the backrest. The front belt force limiters are synchronised
with the front airbags, which distribute the
forces exerted by the belt force limiters on
the occupant over a greater area.
When the ignition is switched on, the belt ten-
sioner is triggered:
R
only if the restraint systems are operational
(the 1 warning lamp lights up after the
ignition is switched on and goes out once
the engine is running) (Y page 37)
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 impact
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 escapes
does not generally constitute a health hazard.
The 1 warning lamp lights up. G
Risk of injury
If the seat belt tensioners have been trig-
gered, they provide no additional protec-
tion in the event of another accident. There-
fore, have belt tensioners which have been
triggered replaced at a qualified specialist
workshop. Safety
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Occupant safety
39Comply with safety regulations when dis-
posing of belt tensioners. Any Mercedes-
Benz Service Centre can provide details of
these regulations.
Airbags Airbag deployment slows down and restricts
the movement of the vehicle occupant.
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 escapes
does not generally constitute a health hazard.
The
1 warning lamp lights up.
The SRS/AIRBAG identification indicates the
location of the airbags. G
Risk of injury
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 if an air-
bag is deployed:
R all vehicle occupants — in particular 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 pos-
sible. The head restraint must support
the back of the head at about eye level.
R always secure children less than 1.50 m
tall or under 12 years of age in suitable
child restraint systems.
R all vehicle occupants must select a seat
position that is as far away from the air-
bag as possible. The driver's seat posi-
tion must allow the vehicle to be driven
safely. The driver's chest should be as far
away from the middle of the driver's front
airbag cover as possible.
R move the front-passenger seat as far
back as possible, especially if a child is
secured in a child restraint system on the
seat.
R vehicle occupants – in particular, chil-
dren – must not lean their head on the
area of the window in which a sidebag or
head/thorax airbag* is deployed.
R Rearward-facing child restraint systems
must not be fitted to the front-passenger
seat unless the front-passenger front air-
bag has been disabled. The front-
passenger front airbag of a vehicle fitted with automatic child seat recognition* is
only disabled when a child restraint sys-
tem with automatic child seat recogni-
tion is fitted to the front-passenger seat.
The 5 PASSENGER AIRBAG OFF
warning lamp must be constantly lit.
If the front-passenger seat of your vehicle
does not have automatic child seat rec-
ognition*, or your rearward-facing child
restraint system does not have such a
feature, children must be secured in a
child restraint system on a 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 possible.
R make sure there are no heavy or sharp-
edged objects in pockets of clothing.
R do not lean forwards, e.g. over the cover
of the driver's front airbag, particularly
when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel by the rim.
This allows the airbag to inflate fully. You
could be injured if the airbag is deployed
and you are holding the inside of the
steering wheel. Safety
* optional
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Occupant safety
45
Automatic child seat recognition on the
front-passenger seat*
If your vehicle does not have automatic child
seat recognition on the front-passenger seat,
this is indicated by a special sticker. The
sticker is affixed to the side of the dashboard
on the front-passenger side. It is visible when
you open the front-passenger door. 1
5 PASSENGER AIRBAG OFF warning
lamp
The front-passenger seat sensor system for
child restraint systems detects whether a
special Mercedes-Benz child seat with auto-
matic child seat recognition has been fitted.
In such cases, 5PASSENGER AIRBAG
OFF indicator lamp 1lights up. The front-
passenger airbag is deactivated. G
Risk of injury
If the 4 PASSENGER AIRBAG OFF warn-
ing lamp does not light up when the child
restraint system is fitted, the front-
passenger front airbag has not been disa-
bled. If the front-passenger front airbag is
deployed, the child could be seriously or
even fatally injured.
Proceed as follows:
R do not use a rearward-facing child
restraint system on the front-passenger
seat.
R fit a rearward-facing child restraint sys-
tem on a suitable rear seat.
or
R only use a forward-facing child restraint
system on the front-passenger seat and
move the front-passenger seat to its rear-
most position.
R have the automatic child seat recognition
checked at a qualified specialist work-
shop.
To ensure that the automatic child seat rec-
ognition on the front-passenger seat func-
tions correctly, never place objects (such
as a cushion) under the child restraint sys-
tem. The entire base of the child restraint system must always rest on the seat cush-
ion. An incorrectly fitted child restraint sys-
tem cannot perform its intended protective
function in the event of an accident, and
could lead to injuries.
i The windowbag*, the head/thorax airbag
and the belt tensioner for the front-
passenger seat are still active even if the
front-passenger seat front airbag has been
disabled by the automatic child seat rec-
ognition. G
Risk of injury
Do not place items of electronic equipment
on the front-passenger seat, e.g.:
R laptops, when switched on
R mobile phones
R cards with transponders, e.g. ski passes
or access cards
Signals from electronic equipment can
cause interference in the automatic child
seat recognition sensor system. This could
lead to a system malfunction. This may
cause the 4PASSENGER AIRBAG OFF
warning lamp to light up without there
being a child seat with automatic child seat
recognition fitted. This means that the Safety
* optional
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Seat belts
74
X
Engage belt tongue 2into buckle 3.
X If necessary, adjust the belt to the appro-
priate height (Y page 74).
X If necessary, pull upwards on the shoulder
section of the belt to tighten the belt across
your body.
Routing the belt X
Press release button 4and guide belt
tongue 2back towards belt sash guide
1. Belt warning for driver and front
passenger
The < seat belt warning lamp in the instru-
ment cluster reminds you that all passengers
should fasten their seat belts. It may light up
continuously or flash. Additionally, there may
be a warning tone.
The < seat belt warning lamp goes out and
the acoustic signal ceases as soon as the
driver and passenger have fastened their seat
belts.
For certain countries only: regardless of
whether the driver or the front passenger
already have their seat belt fastened, the
< seat belt warning lamp lights up for six seconds after the engine has been started. It
then goes out when the driver and front
passenger have already fastened their seat
belts.
i
Further information about the belt warning lamp (Y page 228). Belt height adjustment
You can adjust the seat belt height on the
driver's seat and front-passenger seat.
Adjust the belt to a height that allows it to be
routed across the middle of your shoulder. 1
Release catch X
To raise: slide the belt sash guide upwards.
The belt sash guide engages in various posi-
tions.
X To lower: press and hold release button
1.
X Slide the belt sash guide downwards.
X Let go of release button 1and make sure
that the belt sash guide has engaged. Rear seat belt status indicator
The rear-compartment seat belt status indi-
cator tells you if the rear passengers have
fastened their seat belts. The status indicator
for the rear rear-compartment also tells you
how many of the belt tongues are inserted
into the seat belt buckles.
The rear-compartment seat belt status indi-
cator appears in the multi-function display for
around 30 seconds if:
R you set off and have reached a speed of
approx. 10 km/h
R the rear passengers fasten or unfasten
their seat belts while driving
R someone gets in or out of the vehicle
You can also cancel the messages immedi-
ately (Y page 203). Controls
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Lights
79Hazard warning lamps
The hazard warning lamps still operate if the
ignition is switched off. They switch on auto-
matically if an airbag is deployed or if you
brake sharply and bring the vehicle to a halt
from a speed of more than 70 km/h.
X To switch on: press button1.
All turn signals flash. If you now switch on
a turn signal using the combination switch
(Y page 78), only the turn signal lamp on
the corresponding side of the vehicle will
flash.
X To switch off: press button1. Adjusting the headlamp range (halo-
gen headlamps)
The headlamp range control allows you to
adjust the cone of light from the headlamps
to suit the vehicle load.
You can only adjust the headlamp range while
the engine is running. Position Load
0
Driver's seat and front-
passenger seat occupied
1
Driver's seat, front-
passenger seat and rear
seats occupied Position Load
2
Driver's seat, front passenger
seat and rear seats occupied,
luggage compartment laden
3
Not required
X
Turn headlamp range control 1to the
position which corresponds to the load in
your vehicle. Headlamp cleaning system*
The headlamps are cleaned automatically if
the "Wipe with windscreen washer fluid" func-
tion is operated five times while the lights are
on and the engine is running. When you
switch off the ignition, the automatic head-
lamp cleaning system is reset and counting is
resumed from 0. Controls
* optional
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