warning lights MERCEDES-BENZ B-CLASS SPORTS 2015 Owners Manual

AUTO lightsDisplay message ............................ 222
see Lights
Automatic car wash (care) ...............276
Automatic engine start (ECO start/
stop function) ................................... .139
Automatic engine switch-off (ECO
start/stop function) .......................... 139
Automatic headlamp mode .............. 104
Automatic transmission
Accelerator pedal position ............. 146
Automatic drive program .............. .147
Changing gear ............................... 146
DIRECT SELECT lever ..................... 142
Drive program displa y.................... 143
Driving tips .................................... 146
Emergency running mode .............. 150
Engaging drive position .................. 145
Engaging neutral ............................ 144
Engaging park position automati-
cally ............................................... 143
Engaging reverse gear ................... 144
Engaging the park position ............ 143
Holding the vehicle stationary on
uphill gradients .............................. 146
Kickdown ....................................... 146
Manual drive progra m.................... 148
Overview ........................................ 142
Problem (malfunction) ................... 150
Program selector button ................ 147
Pulling away ................................... 138
Starting the engine ........................ 137
Steering wheel paddle shifters ...... 147
Transmission position display ........ 143
Transmission positions .................. 145
Automatic transmission emer-
gency mode ....................................... 150
B
Backup lamp
Changing bulb s.............................. 112
Display message ............................ 221
Bag hook ............................................ 255
BAS (Brake Assist System) ................. 61
Battery (SmartKey)
Checking .......................................... 73
Important safety notes .................... 73 Replacing ......................................... 74
Battery (vehicle)
Charging ........................................ 291
Display message ............................ 223
Important safety notes .................. 289
Jump starting ................................. 293
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 203
Display message ............................ 226
Notes/function .............................. 185
Brake fluid
Display message ............................ 214
Notes ............................................. 338
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 220
Brakes
ABS .................................................. 61
Adaptive Brake Assist ...................... 63
BAS .................................................. 61
Brake fluid (notes) ......................... 338
Display message ............................ 208
EBD .................................................. 66
Hill start assist ............................... 138
HOLD function ............................... 170
Important safety notes .................. 157
Maintenance .................................. 158
Parking brake ................................ 153
Riding tips ...................................... 157
Warning lamp ................................. 237
Breakdown
see Flat tire
Brightness control (instrument
cluster lighting) ................................... 29
Buttons on the steering wheel ......... 193C
Calling up a malfunction
see Display messages
Care
Car wash ........................................ 276
Carpets .......................................... 282
Display ........................................... 280
Exhaust pipe .................................. 280
Index5

Switching the rear window
defroster on/off............................ 129
Switching the ZONE function on/
off .................................................. 127
Cockpit
Overview .......................................... 28
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 203
Display message ............................ 214
Operation/note s.............................. 62
COMAND display
Cleaning ......................................... 280
Combination switch .......................... 106
Compass
Calibrating ..................................... 267
Calling up ....................................... 267
Magnetic field zone maps .............. 268
Setting ........................................... 267
Consumption statistics (on-board
computer) .......................................... 196
Convenience closing feature .............. 83
Convenience opening feature ............ 82
Coolant (engine)
Checking the level ......................... 273
Display message ............................ 222
Filling capacity ............................... 339
Important safety notes .................. 339
Temperature gaug e........................ 192
Warning lamp ................................. 244
Cooling
see Climate control
Copyright ............................................. 26
Crash-responsive emergency light-
ing ....................................................... 109
Cruise control
Activation conditions ..................... 161
Cruise control lever ....................... 161
Deactivating ................................... 162
Display message ............................ 228
Driving system ............................... 161
Function/note s............................. 161
Important safety notes .................. 161
Setting a speed .............................. 162
Storing and maintaining current
speed ............................................. 162 Cup holder
Center console .............................. 260
Important safety notes .................. 259
Rear compartment ......................... 260
Customer Assistance Center
(CAC) ..................................................... 24
Customer Relations Department ....... 24
D
Data
see Technical data
Daytime running lamps
Display message ............................ 221
Function/note s............................. 104
Switching on/off (on-board com-
puter) ............................................. 205
Declarations of conformity ................. 23
Diagnostics connection ...................... 23
Digital speedometer ......................... 197
DIRECT SELECT lever
Automatic transmission ................. 142
Display messages
ASSYST PLUS ................................ 274
Calling up (on-board computer) ..... 207
Driving systems ............................. 225
Engine ............................................ 222
General notes ................................ 207
Hiding (on-board computer) ........... 207
Lights ............................................. 219
Safety systems .............................. 208
SmartKey ....................................... 234
Tires ............................................... 229
Vehicle ........................................... 230
Distance display (on-board com- puter) .................................................. 202
Distance recorder ............................. 196
Distance warning (warning lamp) .... 246
Distance warning function
Function/note s................................ 62
Warning lamp ................................. 246
DISTRONIC PLUS
Activation conditions ..................... 164
Cruise control lever ....................... 164
Deactivating ................................... 167
Display message ............................ 227
Displays in the multifunction dis-
play ................................................ 168
Index7

Important safety notes .................. 139
Introduction ................................... 139
Emergency
Automatic measures after an acci-
dent ................................................ .54
Emergency release
Driver's door .................................... 78
Vehicle ............................................ .78
Emergency spare wheel
General notes ................................ 329
Important safety notes .................. 329
Removing ...................................... .330
Technical data ............................... 331
Emergency Tensioning Devices
Activation ......................................... 52
Emergency unlocking
Tailgate ............................................ 80
Emissions control
Service and warranty information .... 21
Engine
Check Engine warning lamp ........... 244
Display message ............................ 222
ECO start/stop function ................ 139
Engine number ............................... 335
Irregular running ............................ 141
Jump-starting ................................. 293
Starting problems .......................... 141
Starting the engine with the
SmartKey ....................................... 137
Starting with the Start/Stop but-
ton ................................................. 138
Switching off .................................. 153
Tow-starting (vehicle) ..................... 298
Engine electronics
Problem (malfunction) ................... 141
Engine oil
Adding .......................................... .272
Additives ........................................ 338
Checking the oil level ..................... 271
Checking the oil level using the
dipstick .......................................... 272
Display message ............................ 224
Filling capacity ............................... 338
Notes about oil grades ................... 337
Notes on oil level/consumption .... 271
Viscosity ........................................ 338 ESP
®
(Electronic Stability Pro-
gram)
Activating/deactivating (on-
board computer) ............................ 202
Characteristics ................................. 65
Deactivating/activating (notes) ....... 65
Display message ............................ 208
ETS/4ETS ........................................ 64
Function/notes ................................ 64
General notes .................................. 64
Important safety information ........... 64
Trailer stabilization ........................... 66
Warning lamp ................................. 240
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 64
Exhaust
see Exhaust pipe
Exhaust check ................................... 156
Exhaust pipe
Cleaning ......................................... 280
Exterior lighting
Cleaning ......................................... 279
see Lights
Exterior mirrors
Adjusting ......................................... 98
Dipping (automatic) ......................... 99
Folding in when locking (on-boardcomputer) ...................................... 206
Folding in/out (automatically )......... 99
Folding in/out (electrically) ............. 98
Out of position (troubleshooting) ..... 99
Setting ............................................. 99
Storing settings (memory func-
tion) ............................................... 101
Storing the parking position .......... 100
Eyeglasses compartment ................. 249
F
Filler cap
see Fuel filler flap
Flat tire
MOExtended tire s.......................... 285
Preparing the vehicle ..................... 284
TIREFIT kit ...................................... 286
see Emergency spare wheel
Floormats ........................................... 268
Index9

Indicator and warning lampsCOLLISION PREVENTION ASSIST
PLUS .............................................. 246
Indicator lamps
see Warning and indicator lamps
Instrument cluster
Overview .......................................... 29
Settings ........................................ .204
Warning and indicator lamps ........... 30
Instrument cluster lighting .............. 192
Interior lighting
Control .......................................... .109
Emergency lighting ........................ 109
Overview ........................................ 108
Reading lamp ................................. 108
J
Jack
Storage location ............................ 284
Using ............................................. 323
Jump starting (engine) ......................293
K
Key positions
Start/Stop button .......................... 135
KEYLESS-GO
Convenience closing feature ............ 83
Deactivation ..................................... 71
Locking ............................................ 71
Unlocking ......................................... 71
Kickdown
Driving tips ................................... .146
Manual drive program .................... 149
Knee bag .............................................. 46
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 203
Display message ............................ 226
Function/informatio n.................... 187
Lane Tracking package ..................... 185
LATCH-type (ISOFIX) child seat
anchors ................................................ 56 License plate lamp
Changing bulb s.............................. 113
License plate lamp (display mes-
sage) ................................................... 220
Light function, active
Display message ............................ 221
Light sensor (display message) ....... 222
Lights
Adaptive Highbeam Assist ............. 107
Automatic headlamp mod e............ 104
Fog lamps ...................................... 105
Fogged up headlamp s.................... 108
Hazard warning lamps ................... 107
High beam flashe r.......................... 107
High-beam headlamp s................... 106
Light switch ................................... 104
Low-beam headlamp s.................... 105
Parking lamps ................................ 106
Rear fog lamp ................................ 105
Setting exterior lighting ................. 104
Standing lamps .............................. 106
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 205
Turn signals ................................... 106
LIM indicator lamp
DISTRONIC PLUS ........................... 164
Loading guidelines ............................ 248
Locking
see Central locking
Locking (doors)
Automatic ........................................ 78
Emergency locking ........................... 79
From inside (central locking but-
ton) .................................................. 78
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 205
Low-beam headlamps
Changing bulb s.............................. 111
Display message ............................ 219
Switching on/of f........................... 105
Lumbar support
Adjusting the 4-way lumbar sup-
port .................................................. 95
Index11

Reading lamp..................................... 108
Rear compartment
Setting the air vents ...................... 132
Rear fog lamp
Changing bulb s.............................. 112
Display message ............................ 220
Switching on/of f........................... 105
Rear lamps
see Lights
Rear seat
Adjusting the angle of the backr-
ests ................................................ 254
Folding the backrest forwards/
back (vehicles with the EASY-
VARIO-PLUS system) ..................... 253
Folding the backrest forwards/
back (vehicles without the EASY-
VARIO-PLUS system) ..................... 252
Fore-and-aft adjustment ................ 254
Rear view camera
Cleaning instructions ..................... 279
Displays in the Audio display ......... 180
Displays in the COMAND display ... 180
Function/note s............................. 180
Switching on/of f........................... 180
Rear window defroster
Problem (malfunction) ................... 130
Switching on/of f........................... 129
Rear window wiper
Replacing the wiper blad e.............. 116
Switching on/of f........................... 114
Rear-view mirror
Anti-glare (manual) .......................... 98
Dipping (automatic) ......................... 99
Recuperation display ........................ 196
Refrigerant (air-conditioning sys-tem)
Important safety notes .................. 340
Refueling
Fuel gaug e....................................... 29
Important safety notes .................. 150
Refueling process .......................... 151
see Fuel
Remote control
Garage door opener ....................... 263
Programming (garage door
opener) .......................................... 264 Replacing bulbs
Important safety notes .................. 109
Overview of bulb types .................. 110
Removing/replacing the cover
(front wheel arch) .......................... 111
Rescue card ......................................... 25
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 225
Warning lamp ................................. 244
see Fuel
Residual heat (climate control) ........ 130
Restraint system
Display message ............................ 215
Introduction ..................................... 38
Warning lamp ................................. 243
Warning lamp (function) ................... 39
Reversing feature
Panorama sliding sunroo f................ 86
Roller sunblind ................................. 87
Side windows ................................... 81
Roadside Assistance (breakdown) .... 22
Roller sunblind
Opening/closing .............................. 88
Panorama roof with power tilt/
sliding panel ..................................... 87
Roof carrier ........................................ 259
Roof lining and carpets (cleaning
guidelines) ......................................... 282
Roof load (maximum) ........................ 341
S
Safety
Children in the vehicle ..................... 54
Seat belts
Adjusting the height ......................... 42
center rear-compartment sea t......... 43
Cleaning ......................................... 282
Correct usage .................................. 41
Fastening ......................................... 42
Important safety guidelines ............. 40
Introduction ..................................... 40
Releasing ......................................... 43
Warning lamp ................................. 235
Warning lamp (function) ................... 43
14Index

Switching on/off........................... 106
Start/Stop button
Removing ....................................... 136
Starting the engine ........................ 138
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 137
Status overview (on-board com- puter) .................................................. 201
STEER CONTROL .................................. 66
Steering (display message) .............. 233
Steering assistant STEER CON- TROL
see STEER CONTROL
Steering wheel
Adjusting (manually) ........................ 97
Button overview ............................... 31
Buttons (on-board computer) ......... 193
Cleaning ......................................... 280
Important safety notes .................... 97
Paddle shifters ............................... 147
Steering wheel paddle shifters ........ 147
Stowage compartments
Armrest (front) ............................... 250
Armrest (under) ............................. 250
Center console .............................. 249
Center console (rear) ..................... 250
Cup holders ................................... 259
Eyeglasses compartment ............... 249
Glove box ....................................... 249
Important safety information ......... 249
Map pockets .................................. 251
Stowage net ................................... 251
Under driver's seat/front-
passenger sea t.............................. 250
Stowage net ....................................... 251
Summer tires ..................................... 304
Sun visor ............................................ 261
Switching air-recirculation mode
on/off ................................................. 130
T
Tachometer ........................................ 193
Tail lamps
Display message ............................ 220
see Lights Tailgate
Display message ............................ 232
Emergency unlocking ....................... 80
Important safety notes .................... 79
Opening dimensions ...................... 341
Opening/closing (from outside) ....... 80
Tank content
Fuel gauge ....................................... 29
Technical data
Capacities ...................................... 335
Emergency spare wheel ................. 331
Information .................................... 334
Tires/wheels ................................. 326
Vehicle data ................................... 341
Telephone
Accepting a call (multifunction
steering wheel) .............................. 200
Display message ............................ 233
Introduction ................................... 200
Menu (on-board computer) ............ 200
Number from the phone book ........ 200
Redialing ........................................ 201
Rejecting/ending a call ................. 200
Temperature
Coolant .......................................... 192
Outside temperature ...................... 193
Setting (climate control )................ 126
Through-loading feature ................... 252
Tire pressure
Checking manually ........................ 309
Display message ............................ 229
Maximum ....................................... 308
Not reached (TIREFIT) .................... 288Note s............................................. 307
Reached (TIREFIT) .......................... 288
Recommended ............................... 305
Tire pressure loss warning system
General notes ................................ 309
Important safety notes .................. 309
Restarting ...................................... 309
TIREFIT kit .......................................... 286
Tires
Aspect ratio (definition) ................. 321
Average weight of the vehicle
occupants (definition) .................... 320
Bar (definition) ............................... 319
Changing a whee l.......................... 322
Characteristics .............................. 319
16Index

The shoulder section of the seat belt must
always be routed across the center of the
shoulder. Adjust the belt outlet if necessary.
X To raise: slide the belt outlet upwards.
The belt outlet will engage in various posi-tions.
X To lower: hold belt outlet release ?and
slide belt outlet downwards.
X Let go of belt outlet release ?in the
desired position and make sure that the
belt outlet engages.
All seat belts except the driver's seat belt are equipped with a special seat belt retractor tosecurely fasten child restraint systems in the
vehicle. Further information can be found
under "Special seat belt retractor"( Y page 55).
Seat belt for the center rear seat
If the left-hand rear seat backrest is folded
down and back up again, the rear center seat
belt may lock. The seat belt can then not be
pulled out.
X To release the rear center seat belt: pull
the seat belt out approximately 1 in
(25 mm) at the belt outlet on the backrest
and then release it again.
The seat belt is retracted and released.
Releasing seat belts
!Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam- aged seat belts can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop.
X Press release button :, hold belt
tongue ;firmly and guide it back towards
belt outlet =.
Belt warning for the driver and front passenger
The 7 seat belt warning lamp in the instru-
ment cluster is a reminder that all vehicle
occupants must wear their seat belts. It may
light up continuously or flash. In addition,
there may be a warning tone.
Regardless of whether the driver's seat belt
has already been fastened, the 7seat belt
warning lamp lights up for six seconds each
time the engine is started. If, after
six seconds, the driver or front-passenger
seat belt has not been fastened and the doors
are closed, the 7seat belt warning lamp
lights up. As soon as the driver's and front-
passenger seat belts are fastened or a front
door is opened again, the 7seat belt
warning lamp goes out.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. This warning tone stops after six seconds or when the driver's seat belt is
fastened.
If the vehicle's speed exceeds 15 mph
(25 km/ h)once and the driver's and front-
passenger seat belts are not fastened, a
Occupant safety43
Safety
Z

The indicator lamps display the status of the
front-passenger front air bag. RPASSENGER AIR BAG OFF lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event
of an accident.
R PASSENGER AIR BAG ON lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
If the status of the front-passenger front air
bag changes while the vehicle is in motion, an
air bag display message appears in the instru-
ment cluster ( Ypage 218). When the front-
passenger seat is occupied, always pay atten-
tion to the PASSENGER AIR BAG ON and
PASSENGER AIR BAG OFF indicator lamps. Be
aware of the status of the front-passenger
front air bag both before and during the jour- ney.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is disabled. It will not be deployed in the event of
an accident and cannot perform its intended
protective function. A person in the front-
passenger seat could then, for example, come
into contact with the vehicle's interior, espe-
cially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
R the classification of the person in the front-
passenger seat is correct and the front-
passenger front air bag is enabled or disa-
bled in accordance with the person in the
front-passenger seat
R the front-passenger seat has been moved
back as far back as possible.
R the person is seated correctly.
Make sure, both before and during the jour-
ney, that the status of the front-passenger
front air bag is correct.
GWARNING
If you secure a child in a rearward-facing child
restraint system on the front-passenger seat
and the PASSENGER AIR BAG ON indicator
lamp is lit up, the front-passenger front air bag may deploy in an accident. The child could be
struck by the air bag. This poses an increased risk of injury or even fatal injury.
Make sure that the front-passenger front air
bag has been disabled. The PASSENGER AIR
BAG OFF indicator lamp must be lit.
If the PASSENGER AIR BAG OFF indicator
lamp remains off and/or the PASSENGER AIR
BAG ON indicator lamp lights up, do not install
a rearward-facing child restraint system on
the front-passenger seat. You can find more
information on OCS under "Problems with the Occupant Classification System"( Y page 51).
GWARNING
If you secure a child in a forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat too
close to the dashboard, in the event of an
accident, the child could:
R come into contact with the vehicle's inte-
rior if the PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
R be struck by the air bag if the PASSENGER
AIR BAG ON is lit up
This poses an increased risk of injury or even fatal injury.
Move the front-passenger seat as far back as
possible. Always make sure that the shoulder belt strap is correctly routed from the vehicle
belt outlet to the shoulder belt guide on the
child restraint system. The shoulder belt strap
must be routed forwards and downwards
from the vehicle belt outlet. If necessary,
adjust the vehicle belt outlet and the front-
passenger seat accordingly. Always observe
the child restraint system manufacturer's
installation instructions.
48Occupant safety
Safety

If OCS determines that: Rthe front-passenger seat is unoccupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up after the system self-test and
remains lit. This indicates that the front-
passenger front air bag is deactivated.
R the front-passenger seat is occupied by a
child of up to 12 months old in a standard
child restraint system, the PASSENGER AIR
BAG OFF indicator lamp lights up after the
system self-test and remains lit. This indi-
cates that the front-passenger front air bag
is deactivated.
But in the case of a 12-month-old child in a
standard child restraint system, the
PASSENGER AIR BAG ON can light up per-
manently after the system self-test. This
indicates that the front-passenger front air
bag is activated. The result of the classifi-
cation is dependent on, among other fac-
tors, the child restraint system and the
child's stature. It is recommended that you
install the child restraint system on a suit-
able rear seat.
R the front-passenger seat is occupied by a
person of smaller stature (e.g. a teenager
or small adult), either the PASSENGER AIR
BAG ON or PASSENGER AIR BAG OFF indi-
cator lamp lights up and remains lit after
the system self-test depending on the
result of the classification. - If the PASSENGER AIR BAG ON indicator
lamp lights up, move the front-passenger
seat as far back as possible. Alterna-
tively, a person of smaller stature can sit on a rear seat.
- If the PASSENGER AIR BAG OFF indicator
lamp is lit, a person of smaller stature
should not use the front-passenger seat.
R the front-passenger seat is occupied by an
adult or a person of a stature correspond-
ing to that of an adult, the PASSENGER AIR
BAG ON indicator lamp lights up after the
system self-test and remains lit. This indi-
cates that the front-passenger front air bag
is activated. If children are traveling in the vehicle, be sure
to observe the notes on "Children in the vehi-
cle" ( Ypage 54).
When OCS is malfunctioning, the red 6
restraint system warning lamp in the instru-
ment cluster and the PASSENGER AIR BAG
OFF indicator lamp light up simultaneously.
The front-passenger front air bag is deactiva- ted in this case and does not deploy during an
accident. Have the system checked by quali-
fied technicians as soon as possible. Consult
an authorized Mercedes-Benz Center. The
front-passenger seat should only be repaired at an authorized Mercedes-Benz Center.
If the front-passenger seat, the seat cover or the seat cushion is damaged, have the nec-
essary repair work carried out at an author-
ized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories
that have been approved by Mercedes-Benz.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy. The Occupant Classification
System (OCS) categorizes the occupant in the
front-passenger seat. Depending on that
result, the front-passenger front air bag is
either enabled or deactivated.
System self-test
GDANGER
If both the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not light up during the system self-test, the
system is malfunctioning. The front-
passenger front air bag might be triggered
unintentionally or might not be triggered at all in the event of an accident with high deceler-
ation. This poses an increased risk of injury or even fatal injury.
In this case the front-passenger seat may notbe used. Do not install a child restraint system
on the front-passenger seat. Have the Occu-
pant Classification System (OCS) checked
and repaired immediately at a qualified spe-
cialist workshop.
Occupant safety49
Safety
Z

Deployment of Emergency TensioningDevices and air bags
Important safety notes
GWARNING
The air bag parts are hot after an air bag has
been deployed. There is a risk of injury.
Do not touch the air bag parts. Have a
deployed air bag replaced at a qualified spe-
cialist workshop as soon as possible.
GWARNING
A deployed air bag no longer offers any pro-
tection and cannot provide the intended pro-
tection in an accident. There is an increased
risk of injury.
Have the vehicle towed to a qualified special- ist workshop in order to have a deployed air
bag replaced.
It is important for your safety and that of your
passenger to have deployed air bags replaced and to have any malfunctioning air bags
repaired. This will help to make sure the air
bags continue to perform their protective
function for the vehicle occupants in the
event of a crash.
GWARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer opera-tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency Ten-
sioning Devices which have been triggered
immediately replaced at a qualified specialist workshop.
If Emergency Tensioning Devices are trig-
gered or air bags are deployed, you will hear a
bang, and a small amount of powder may also be released. The 6restraint system warn-
ing lamp lights up.
Only in rare cases will the bang affect your
hearing. The powder that is released gener-
ally does not constitute a health hazard, but it may cause short-term breathing difficulties in
people with asthma or other respiratory prob-
lems. To avoid this, you may wish to get out of
the vehicle or open the windows as soon as it is safe to do so.
Air bags and pyrotechnic Emergency Tension-
ing Devices (ETDs) contain perchlorate mate- rial, which may require special handling and
regard for the environment. National guide-
lines must be observed during disposal. In
California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Method of operation
During the first stage of a collision, the
restraint system control unit evaluates impor-
tant physical data relating to vehicle deceler- ation or acceleration, such as:
R duration
R direction
R intensity
Based on the evaluation of this data, the
restraint system control unit triggers the
Emergency Tensioning Devices during a fron- tal or rear collision.
An Emergency Tensioning Device can only be
triggered, if: R the ignition is switched on
R the components of the restraint system are
operational; see "Restraint system warning
lamp" ( Ypage 39)
R the belt tongue is engaged in the buckle on
the respective front-passenger seat
The Emergency Tensioning Devices in the
rear compartment are triggered independ-
ently of the lock status of the seat belts.
If the restraint system control unit detects a
more severe accident, further components of the restraint system are activated independ-
ently of each other in certain frontal collision
situations:
52Occupant safety
Safety