child restraint MERCEDES-BENZ SLC-Class 2017 R172 Owner's Manual

Notes .............................................287
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 189
Brakes
ABS ..................................................5 5
Adaptive Brake Assist ...................... 57
BAS .................................................. 55
Brake fluid (notes) ......................... 287
Display message ............................ 179
EBD .................................................. 61
High-performance brake system .... 137
Important safety notes. ................. 136
Maintenance .................................. 137
Parking brake ................................ 132
Riding tip s...................................... 136
Warning lamp ................................. 204
Breakdown
Where will Ifind...? ........................ 241
see Fla ttire
see Towing away
Brightness control( instrument
cluste rlighting) ................................... 31
Bulbs
see Replacing bulbs
C
CaliforniaImportant notice for retail cus-
tomers and lessees .......................... 23
Calling up amalfunction
see Displa ymessages
Car
see Vehicle
Care
Carw ash. ....................................... 236
Exhaus tpipe. ................................. 240
Exterior lights ................................ 239
Matte finish ................................... 238
Note s............................................. 236
Paint .............................................. 237
Power washer. ............................... 237
Rear vie wcamera .......................... 240
Sensors ......................................... 240
Washing by hand ........................... 237 Wheels.
.......................................... 238
Window s........................................ 239
Wipe rblade s.................................. 239
CD
see also Digital Operator's Man-
ual.................................................. 211
CD player (on-board computer) ........ 169
Centerc onsole
Lower section .................................. 34
Upper section .................................. 33
Central locking
Automati cloc king (on-board com-
puter) ............................................. 173
Locking/unlocking (SmartKey )........ 63
Changin gbulbs
High-beam headlamp s..................... 98
Low-bea mheadlamp s...................... 98
Sid em arker lamps (rear) ................. 99
Child
Restraint system .............................. 53
Child seat
Forward-facing restraint system ...... 54
On the front-passenger sea t............ 53
Rearward-facing restraint system .... 54
Children
Specia lsea tb eltr etractor ............... 52
Cigarette lighter ................................ 221
Cleaning
Mirror turn signal ........................... 239
Climate control
Air-conditioning system ................. 103
Automati cclimate control (dual-
zone) .............................................. 105
Controlling automaticall y............... 108
Cooling with ai rdehumidifica tion .. 107
Defrosting the window s................. 110
Defrosting the windshield .............. 109
Genera lnotes ................................ 102
Indicato rlam p................................ 108
Information aboutu sing auto-
mati cclimate control ..................... 106
Ma

ximu mcooling .......................... 110
Note sonu sing the air-condition-
ing system ..................................... 104
Overview of systems ...................... 102
Problem with the rea rwindow
defroster ........................................ 111
Index5

Mobile phoneConnecting (Bluetooth®inter-
face) ..............................................2 14
Connecting another mobile
phone ............................................ 216
Frequencies ................................... 282
Installatio n..................................... 282
Menu (on-board computer) ............ 169
Transmissio noutput (maximum ).... 282
Modifying the programming
(SmartKey) ...........................................6 4
MOExtended tires .............................. 242
Mountin gwheels
Lowering the vehicl e...................... 278
Mounting anew whee l................... 277
Preparing the vehicl e.....................2 75
Raising the vehicle ......................... 275
Removing awheel .......................... 277
Securing the vehicle against roll-
ing away ........................................ 275
MP3
Operation ....................................... 169
see also Digita lOperator's Man-
ua l..................................................2 11
Multifunctio ndisplay
Function/notes .............................1 65
Permanent displa y......................... 172
Multifunctio nsteering wheel
Operating the on-board computer .. 164 Overview .......................................... 32
Music files
see also Digita lOperator's Man-
ua l.................................................. 211
N
Navigation
Menu (on-board computer) ............ 167
see also Digital Operator's Man-
ual.................................................. 211
NECK-PRO hea drestraints
Important safety notes .................... 50
Operation ......................................... 50
Resetting triggered .......................... 51
Note sonb reaking-i nanewvehi-
cle ....................................................... 114
O
Occupant Classification System
(OCS)
Conditions ....................................... 44
Faults ............................................... 48
Operation ......................................... 45
System self-test ............................... 47
Occupant safety
Air bags ........................................... 42
Automati cmeasures afte ranacci-
dent ................................................. 51
Childre ninthe vehicl e..................... 51
Important safety notes .................... 37
Introduction to the restraint sys-
tem .................................................. 37
Occupant Classification System
(OCS) ............................................... 44
PASSENGER AIR BAG indicator
lamps ............................................... 38
Pets in the vehicl e........................... 54
PRE-SAFE
®(anticipatory occu-
pant protection) ............................... 51
Restraint system warning lamp ........ 37
OCS
Conditions ....................................... 44
Faults ............................................... 48
Operation ......................................... 45
System self-test ............................... 47
Odometer ........................................... 166
Oil
see Engine oil
On-board computer
AMG menu ..................................... 175
Assistance menu ........................... 170
Audio menu ................................... 168
Convenience submenu .................. 174
Displa ymessages .......................... 178
Displaying aservice message ........ 235
Factory settings submenu ............. 175
Important safety notes .................. 163
Instrument cluster submenu .......... 172
Lighting submenu .......................... 172
Menu overview .............................. 166
Message memory .......................... 178
Navigation menu ............................ 167
Operation ....................................... 164
RACETIMER ................................... 176
12Index

Panic alarm
XTo activate:press!button :for at
least one second.
Av isual and audible alarm is triggered if the
alarm system is armed.
XTo deactivate: press!button :again.
or
XInsert the SmartKey into the ignition lock.
or
XPress the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
Rseat belt system
Rair bags
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all vehicle occupants:
Rhave fastened their seat belts correctly
(Ypage 40)
Rhave adjusted their seat and head restraint
properly (Ypage 82).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (
Ypage 82). You also have to make sure that an air bag can
inflate properly if deploye
d(
Ypage 42).
An air bag supplements acorrectly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par- ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against object spenetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" (
Ypage 48).
For information on children traveling with you in
the vehicle and on child restraint systems, see
"Children in the vehicle" (
Ypage 51).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate aperson
with disabilities, contact an authorized
Mercedes-Benz Center for details. USA only:
for further information contact our Customer
AssistanceC enter at 1-800-FOR-MERCedes
(1‑800‑36 7‑6372).
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at
regular intervals while the engine is running.
Therefore, malfunction scan be detected in
good time.
Occupant safety37
Safety
Z

The6 restraint system warning lamp in the
instrument cluster lights up when the ignition is
switched on. It goes out no later than afew sec-
onds after the vehicle is started. The compo-
nentsoft he restraint system are in operational
readiness.
Am alfunction has occurred if the 6restraint
system warning lamp:
Rdoes not light up after the ignition is switched
on
Rdoes not go out after afew seconds with the
engine running
Rlights up again while the engine is running
GWARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident .This can affect
for example the Emergency Tensioning
Device or the air bag. This poses an increased
risk of injury or even fatal injury.
Have the restraint system checked and
repaired in aqualified specialist workshop as
soon as possible.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lamp :and
PASSENGER AIR BAG OFF indicator lamp ;are
part of the Occupant Classification System
(OCS).
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER 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.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
Dependin gonthe person in the front-passenger
seat, the front-passenger front air bag must
either be deactivated or enabled; see the fol-
lowing points. You must make sure of this both
before and during ajourney.
RChildren in achild restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the instal-
led child restraint system, and the age and
size of the child. Therefore, be sure to observe
the notes on the "Occupant Classification
System (OCS)" (
Ypage 44) and on "Chil-
dren in the vehicle" (Ypage 51). There you
will also find instructions on rearward and
forward-facing child restraint systems on the
front-passenger seat.
RAll other persons: depending on the classi-
fication of the person in the front-passenger
seat, the front-passenger front air bag is ena-
bled or deactivated (
Ypage 44). Be sure to
observe the notes on "Seat
belts“ (
Ypage 38) and "Air bags"
(Ypage 42). There you can also find infor-
mation on the corrects eat position.
Seat belts
Introduction
Seat belts are the most effective means of
restrictingt he movementofv ehicle occupants
in the event of an accident or the vehicle rolling
over. This reduces the risk of vehicle occupants
coming into contact with parts of the vehicle
interior or being ejected from the vehicle. Fur-
thermore, the seat belt helps to keep the vehicle
occupant in the best position in relation to the
air bag.
The seat belt system comprises:
RSeat belts
REmergency Tensionin gDevices and seat belt
force limiters
If the seat belt is pulled by the belt loop quickly
or with ajerk ym ovement, the belt retractor
locks. The belt strap cannot be extracted any
further.
38Occupant safety
Safety

The Emergency TensioningDevice tightensthe
seat belt in an accident ,pulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency TensioningD evice does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, aseat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters are synchronized
with the front air bags which absorb part of the deceleration force. This can reduce the force
exerted on the vehicle occupantsd uring an acci-
dent.
!If the front-passenger seat is unoccupied,
do not insert the belt tongue into the buckle of
the front-passenger seat. This may otherwise lead to the triggerin gofthe Emergency Ten-
sioning Device in the event of an accident,
which will then need to be replaced.
Important safety notes
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehicle
occupantss hould correctly fasten their seat
belts before starting the journey.
GWARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
Always ensure that all vehicle occupantsh ave
their seat belts fastened correctly and are sit-
ting properly.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident ,you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
GWARNING
Persons less than 5ft(1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
For this reason, alwayss ecure persons under
5ft( 1.50 m) tall in suitable additional restraint
systems.
If ac hild younger than twelve years old and
under 5ft(1.50 m) in height is traveling in the
vehicle:
Ralwayss ecure the child in achild restraint
system suitable for this Mercedes-Benz vehi-
cle. The child restraint system must be appro-
priate to the age, weight and size of the child
Ralwayso bserve the instructions and safety
notes on "Children in the vehicle"
(
Ypage 51) in addition to the child restraint
system manufacturer's installation and oper-
ating instructions
Rbe sure to observe the instructions and safety
notes on the "Occupant classification system
(OCS)" (
Ypage 44)
Occupant safety39
Safety
Z

Air bags
Introd uction
The installation poin tofanair bag can be rec -
ognized by th eAIRBA Gs ymbol.
An air bag complements th ecorrectly fastened
seat belt .Itisnos ubstitutefor th eseat belt .The
air bag provides additional protection in appli-
cable acciden tsituations.
Not all air bags are deployed in an accident. The
differen tair bag systems function independ-
entl yfromo neanother (
Ypage 48).
However, no system available today can com-
pletely eliminate injurie sand fatalities.
It is also no tpossibl etorule out ariskofi njury
caused by an air bag due to th ehigh spee dat
whic hthe air bag mus tbedeployed.
Import ant safety notes
GWARNIN G
If you do no tsit in th ecorrect seat position ,
th ea ir bag canno tprotect as intended and
could eve ncaus eadditional injury when
deployed. This poses an increased ris kof
injury or eve nfatal injury.
To avoi dhazardous situations, always mak e
sur ethata ll of th evehicle's occupants:
Rhav efastene dtheir seat belt scorrectly ,
includin gpregnant women
Rare sitting correctl yand maintai nthe great-
est possibl edistanc etotheair bags
Rfollow th efollowin ginstruction s
Always mak esuret hatthe re are no objects
between th eair bag and th evehicle's occu-
pants .
RAdjus tthe seat sproperly before beginning
your journey. Always mak esuret hatthe seat
is in an almost upright position .The center of
th eh ead restrain tmusts upport th ehead at
about eye level.
RMov ethe driver's and front-passenger seat s
as far bac kaspossible. The driver's seat posi-
tion mus tallow th evehicl etobed riven safely.
ROnly hold th esteering whee lontheoutside .
This allows th eair bag to be fully deployed.
RAlways lean against th ebackrest while driv-
ing .Don otlean forward sorlean against th edoor or side window. You may otherwise be in
th
ed eploymen tarea of th eair bags .
RAlways keep your fee tinthefootwell in fron t
o
f th eseat .Don otput your fee tonthedash -
board, for example. Your fee tmay otherwise
be in th edeployment area of th eair bag.
RForthisr eason ,always secure person sless
than 5ft(1.50m)t allins uitabl erestraint sys-
tems .Uptot hisheight ,the seat belt cannot
be worn correctly.
If ac hild is traveling in your vehicle ,also
observe the followin gnotes:
RAlway ssecurec hildren under twelve year sof
ag ea nd less than5 ft (1.50m)tallins uitable
child restraint systems.
ROnlys ecureac hild in arearward-facing child
restraint systemont he front-passengerseat
when the front-passenge rfront ai rbag is
deactivated .Ifthe PASSENGER AIR BAG OFF
indicator lamp is permanentl ylit,t he front-
passenge rfront ai rbag is deactivated
(
Ypage 38).
RAlway sobser ve the instructions and safety
note sont he "Occupant Classification System
(OCS) "(
Ypage 44) and on "Children in the
vehicle" (Ypage 51 )ina ddit iontot he child
restraint systemm anufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag fromf unctioningcorrectly. Before
startin gyourjourney and to avoi drisks resul ting
fromt h

e spee dofthe airbag as it deploys, make
sure that:
Rthere ar enopeople, animals or objects
between the vehicl eoccupants and an air
bag.
Rthere ar enoobjects between the seat, door
and B-pillar.
Rno accessories, such as cup holders, are
attache dtothe vehicl ewithint he deployment
area of an ai rbag,e .g.tod oors or side win-
dows.
Rno heavy, sharp-edged or fragile objects ar ein
the pockets of your clothing. Store such
objects in asuitabl eplace.
GWARNING
If yo umodify the ai rbag cove rora ffix objects
such as sticker stoit, the ai rbag can no longer
functio ncorrectly. There is an increasedr isk
of injury.
42Occupant safety
Safety

If the front passenger does not observe these
conditions, OCS may produceafalse classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on avehicle armrest
Rsits in such away that their weight is raised
from the seat cushion
If you install achild restraint system on the
front-passenger seat, be sure to observe the
correct positioning of the child restraint system.
Never place objects under or behind the child
restraint system, e.g. acushion. The entire base
of the child restraint system must always rest on
the seat cushio nofthe front-passenger seat.
The backrest of the forward-facing child
restraint system must lie as flat as possible
against the backrest of the front-passenger
seat.
The child restraint system must not touch the
roof or be subjected to aload by the head
restraint. Adjust the angle of the seat backrest
and the head restraint positiona ccordingly.
Only then can OCS be guaranteed to function
correctly. Alway sobserve the child restraint sys-
tem manufacturer's installation and operating
instructions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp
The indicator lamp sinform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice, or turn the SmartKey to position 1or 2in the
ignition lock.
The system carries out self-diagnostics. The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamp
smust lightu psimul-
taneousl yfor approximately six seconds.
The indicator lamp sdisplay the status of the
front-passenger front air bag.
RPASSENGER 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.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the status of the front-passenger front air bag changes whil ethe vehicle is in motion, an air bag
display messag eappears in the instrument clus-
ter (
Ypage 187). When the front-passenger
seat is occupied, always pay attention 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 journey.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is
disabled.Itw illnot be deployed in the event of
an accident and cannot perform its intended
protective function. Aperson in the front-
passenger seat could then, for example ,come
into contact with the vehicle's interior, espe-
ciallyift he 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:
Rthe 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
Rthe front-passenger seat has been moved
back as far back as possible.
Rthe 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.
Occupant safety45
Safety
Z

GWARNING
If you secure achild in arearward-facing child
restraint system on the front-passenge rseat
and the PASSENGER AIR BAG ON indicator
lamp is lit up, the front-passenge rfront air bag
may deploy in an accident. The child coul dbe
struck by the air bag .This posesani ncreased
risk of injury or even fatal injury.
Make sure that the front-passenge rfront 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 arear-
ward-facing child restraint system on the front-
passenger seat. You can find more information
on OCS under "Problems with the Occupant
Classification System" (
Ypag e48).
GWARNING
If you secure achild in aforward-facing child
restraint system on the front-passenge rseat
and you position the front-passenge rseat too
close to the dashboard, in the event of an
accident, the child could:
Rcome into contact with the vehicle's inte-
rior if the PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
Rbe 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-passenge rseat as far back as
possible.A lways make sure that the shoulder
belts trap is correctly routed from the vehicle
beltl oop to the shoulde rbeltg uide on the
child restraint system. The shoulde rbelts trap
must be routed forwards and downwards
from the beltl oop.Always observe the child
restraint system manufacturer's installation
instructions.
If OCS determines that:
Rthe front-passenge rseat 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.
Rthe front-passenge
rseat is occupied by a
child of up to twelve months old, in astandard
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-passenge rfront air bag is
deactivated.
But even in the case of atwelve-month-old
child ,inas tandard child restraint system, the
PASSENGER AIR BAG ON can light up perma-
nently after the system self-test. This indi-
cates that the front-passenge rfront air bag is
activated. The result of the classification is
dependent on, among other factors, the child
restraint system and the child's stature. Make
sure that the conditions for acorrect classi-
ficatio nare met. If the PASSENGER AIR BAG
OFF indicator lamp is still lit, do not install a
child restraint system on the front-passenger
seat.
Rthe front-passenge rseat is occupied by aper-
son of smaller stature (e.g. ateenage ror
smal ladult), either the PASSENGER AIR BAG
ON or PASSENGER AIR BAG OFF indicator
lamp lights up and remains lit after the system
self-test depending on the result of the clas-
sification.
-If the PASSENGER AIR BAG ON indicator
lamp lights up, move the front-passenger
seat as far back as possible.
-If the PASSENGER AIR BAG OFF indicator
lamp is lit, apersonofs maller stature
should not use the front-passenge rseat.
Rthe front-passenge rseat is occupied by an
adult or apersonofa dult stature, the
PASSENGER AIR BAG ON indicator lamp
lights up after the system self-test and
remains lit. This indicates 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 vehicle"
(
Ypag e51).
When OCS is malfunctioning, the red 6
restraint system warning lamp in the instrument
cluster and the PASSENGER AIR BAG OFF indi-
cator lamp light up simultaneously .The front-
passenger front air bag is deactivated in this
case and does not deploy during an accident.
Have the system checked by qualified techni-
cians as soon as possible.C onsult an authorized
Mercedes-Benz Center. The front-passenger
46Occupant safety
Safety

seat should only be repaired at an authorized
Mercedes-Benz Center.
If the front-passenger seat, the seat cover or theseat cushion is damaged,h ave the necessary
repair work carried out at an authorized
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.T he Occupant Classification Sys-
tem (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 not
be used. Do not install achild restraint system
on the front-passenger seat. Have the Occu-
pant Classification System (OCS) checked
and repaired immediately at aqualified spe-
cialist workshop.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp remains lit after the system self-test, the
front-passenger front air bag is disabled. It will
not be deployed in the event of an accident. In
this case, the front-passenger front air bag
cannot perform its intended protective func-
tion, e.g. when aperson is seated in the front-
passenger seat.
That person could, for example, come into
contact with the vehicle's interior, especially
if the person is sitting too close to the dash-
board. This poses an increased risk of injury or
even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
Rthe 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
Rthe person is seated properly with acor-
rectly fastened seatbelt
Rthe front-passenger seat has been moved
as far back as possible
If the PASSENGER AIR BAG OFF indicator
lamp remains lit when it should not, the front-
passenger seat may not be used. Do not
install achild restraint system on the front-
passenger seat. Have the Occupant Classifi-
cation System (OCS) checked and repaired
immediately at aqualified specialist work-
shop.
GWARNING
Objects between the seat surface and the
child restraint system could affect OCS oper- ation. This could result in the front-passenger
air bag not functioningasi ntended during an
accident. This poses an increased risk of
injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. The
entire base of the child restraint system must
always rest on the seat cushion of the front-
passenger seat. The backrest of the forward-
facing child restraint system must, as far as
possible,ber esting on the backrest of the
front-passenger seat. Always comply with the
child restraint system manufacturer's instal-
lation instructions.
After the system self-test, the PASSENGER AIR
BAG OFF or PASSENGER AIR BAG ON indicator
lamp displays the status of the front-passenger
front air bag (
Ypage 45).
For more information about the OCS, see "Prob-
lems with the Occupant Classification System"
(
Ypage 48).
Occupant safety47
Safety
Z

Problems with the Occupant Classification System (OCS)
Be sure to observe the notes on "System self-test"(Ypage 47).
ProblemPossible causes/consequences andMSolutions
The PASSENGER AIR
BAG OFF indicator lamp
lights up and remains lit,
even though the front-
passenger seat is occu-
pied by an adult oraper-
son of astature corre-
sponding to that of an
adult.The classification of the person on the front-passenger seat is incor-
rect.
XMake sure the conditionsf orac orrect classification of the person
on the front-passenger seat are met (Ypage 44).
XIf the PASSENGER AIR BAG OFF indicator lamp remains lit, the front-
passenger seat may not be used.
XHave OCS checked as soon as possible at an authorized Mercedes- Benz Center.
The PASSENGER AIR
BAG OFF indicator lamp
does not light up and/or
does not stay on.
The front-passenger seat
is:
Runoccupied
Roccupied with the
weight of achild up to
twelve months old in a
child restraint system
OCS is malfunctioning.
XMake sure there is nothin gbetween the seat cushion and the child
seat.
XMake sure that the entire base of the child restraint system rests on
the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as flat as possible
against the backrest of the front-passenger seat. If necessary,
adjust the position of the front-passenger seat.
XWhen installing the child restraint system, make sure that the seat belt is tight. Do not pull the seat belt tight using the front-passenger
seat adjustment .This could result in the seat belt and the child
restraint system being pulled too tightly.
XCheck for correct installation of the child restraint system.
Make sure that the head restraint does not apply aload to the child
restraint system. If necessary, adjust the head restraint accord-
ingly.
XMake sure that no object sare applying additional weight onto the
seat.
XIf the PASSENGER AIR BAG OFF indicator lamp remains off and/or
the PASSENGER AIR BAG ON indicator lamp lights up, do not install ac hild restraint system on the front-passenger seat.
XHave OCS checked as soon as possible at an authorized Mercedes-
Benz Center.
Deployment of Emergency Tensioning
Devices and air bags
Important safety notes
GWARNING
The air bag parts are hot after an air bag has
been deployed. There is arisk of injury.
Do not touch the air bag parts. Have a
deploye dair bag replaced at aqualified spe-
cialist workshop as soon as possible.
GWARNING
Ad eployeda ir 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 aqualified special-
ist workshop in order to have adeployeda ir
bag replaced.
For your own safety and that of your front
passenger, it is important that you have
48Occupant safety
Safety