If the PASSENGER AIR BAG OFF indicator
lamp:
Ris lit: the front-passenger front air bag is
deactivated. It will then not be deployed in
the event of an accident.
Rdoes not light 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.
GWAR NING
If the PASS ENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is
disabled. It will notbe deplo yedinthe event of
an acc ident and cannot perform its intended
protective function. A person inthe front-
passenger seat could then, for example, come
into contact with the veh icle's interior, espe-
cial ly if the person issitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat isoccupied,
always ensure that:
Rthe classification of the person inthe front-
passenger seat iscorrect and the front-
passenger front air bag isenabled or disa-
bled in accordance with the person inthe
front-passenger seat
Rthe front-passenger seat has been moved
back as far back as possible.
Rthe person isseated correctly.
Make sure, both before and during the jour-
ney, that the status of the front-passenger
front air bag iscorrect.
GWAR NING
If you secure a ch ild ina childrestraint system
on the front-passenger seat and the
PASS ENGER AIR BAG OFF indicator lamp is
off, the front-passenger front air bag can
deplo yin the event of an acc ident. The ch ild
could bestruck bythe 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.
GWARNING
If you secure a child ina forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat too close to the dashboard, the child could, inthe
event of an accident:
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 OFF indicator lamp isoff
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 sash guide to the shoulder belt guide on
the child restraint system. The shoulder belt
strap must be routed forwards and down-
wards from the vehicle belt sash guide. If nec- essary, adjust the vehicle belt sash guide and
the front-passenger seat accordingly. Always
observe the child restraint system manufac-
turer's installation instructions.
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.
Rthe front-passenger seat is occupied by a
c
hild of up to twelve months old, in a stand-
ard child restraint system, 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.
But even in the case of a twelve-month-old
child, in a standard child restraint system,
the PASSENGER AIR BAG OFF indicator
lamp can go out after the system self-test.
Occupant safety59
Safety
Z
This indicates that the front-passenger
front air bag is activated. The result of the
classification is dependent on, among
other factors, the child restraint system
and the child's stature. It is recommended
that you install the child restraint system on
a suitable rear seat.
Rthe front-passenger seat is occupied by a
person of smaller stature (e.g. a teenager
or small adult), the PASSENGER AIR BAG
OFF indicator lamp lights up and remains lit
after the system self-test depending on the
result of the classification or, alternatively,
goes out.
-If the PASSENGER AIR BAG OFF indicator
lamp is off, 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.
Rthe 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 OFF indicator lamp goes out after the
system self-test. 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 vehi- cle" (
Ypage 68).
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 Classificat
ion
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 the PASSENGER AIR BAG OFF indicator
lamp does not light up during the system self-
test, then the system is malfunctioning. The
front-passenger front air bag might be trig-
gered unintentionally or might not be trig-
gered at all in the event of an accident with
high deceleration. 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 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.
GDANGER
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 a person 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.
60Occupant safety
Safety
Problems with the Occupant Classification System (OCS)
Be sure to observe the notes on "System self-test" (Ypage 60).
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 or a
person of a stature cor-
responding to that of an
adult.The classification of the person on the front-passenger seat is
incorrect.
XMake sure the conditions for a correct classification of the per-
son on the front-passenger seat are met (
Ypage 58).
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 by the
weight of a child up
to 12 months old in a
child restraint sys-
tem
OCS is malfunctioning.
XMake sure there is nothing between 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 pos-
sible against the backrest of the front-passenger seat. If nec-
essary, 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 a load to the
child restraint system. If necessary, adjust the head restraint
accordingly.
XMake sure that no objects are applying additional weight onto
the seat.
XIf the PASSENGER AIR BAG OFF indicator lamp remains off, do
not install a child restraint system on the front-passenger seat.
It is recommended that you install the child restraint system on
a suitable rear seat.
XHave OCS checked as soon as possible at an authorized
Mercedes-Benz Center.
62Occupant safety
Safety
Deployment of Emergency Tensioning
Devicesan dair bags
Important safet ynotes
GWARNING
The air bag parts are hot after an air bag has
bee ndeployed .There is aris kof injury.
Do no ttouch th eair bag parts .Hav e a
deployed air bag replaced at aqualified spe -
cialis tworkshop as soo nas possible.
GWARNING
A deployed air bag no longer offers any pro -
tection and canno tprovid eth eintended pro -
tection in an accident. There is an increase d
ris kof injury.
Hav eth evehicle towed to aqualified special-
ist workshop in order to hav e adeployed air
bag replaced.
It is important fo ryour safet yand that of your
passenger to hav edeployed air bags replaced
and to hav eany malfunctionin gair bags
repaired. Thi swill help to mak esur eth eair
bags continue to perform their protective
function fo rth evehicle occupant sin th e
event of acrash .
GWARNING
Pyrotechnic Emergency Tensioning Devices
that hav ebee ndeployed are no longer opera-
tional and are unable to perform their inten-
ded protective function .Thi sposes an
increase dris kof injury or eve nfatal injury.
Therefore, hav epyrotechni cEmergency Ten -
sioning Devices whic hhav ebee ntriggere d
immediately replaced at aqualified specialis t
workshop .
An electric moto ris used by PRE-SAF E®to
trigger th etightenin gof th eseat belt in haz -
ardous situations. Thi sprocedur eis reversi-
ble.
If Emergency Tensioning Devices are trig-
gered or air bags are deployed ,you will hear a
bang, and asmall amount of powder may also be released. The
6restrain tsystem warn -
in g lamp lights up.
Only in rar ecases will th eban gaffec tyour
hearing. The powder that is release dgener-
ally doe sno tconstitute ahealth hazard ,but it
may caus eshort-term breathin gdifficulties in
people wit hasthm aor other respirator yprob-
lems. To avoid this, you may wish to get out of
th evehicle or ope nth ewindows as soo nas it
is saf eto do so.
Ai rbags and pyrotechni cEmergency Tension-
in gDevices (ETDs) contain perchlorat emate-
rial ,whic hma
y require special handlin gand
regard fo rth eenvironment. National guide-
lines mus tbe observed durin gdisposal. In
California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Method of operation
Duringth efirst stage of acollision ,th e
restrain tsystem contro luni tevaluates impor -
tant physical dat arelatin gto vehicle deceler -
ation or acceleration ,suc has:
Rduration
Rdirection
Rintensit y
Based on th eevaluation of this data, th e
restrain tsystem contro luni ttriggers th e
Emergency Tensioning Devices durin g afron -
ta lor rea rcollision .
An Emergency Tensioning Devic ecan only be
triggered, if:
Rth eignition is switched on
Rth ecomponent sof th erestrain tsystem are
operational; see "Restrain tsystem warnin g
lamp " (
Ypage 49)
Rthebelt tongue is engage din th ebuckl eon
th erespective front-passenger seat
The Emergency Tensioning Devices in th e
rea rcompartmen tare triggere dindepend -
entl yof th eloc kstatus of th eseat belts.
If th erestrain tsystem contro luni tdetects a
more severe accident, further component sof
Occupant safety63
Safety
Z
ation is possible using the switches in the
rear compartment.
Pets in the vehicle
GWARNING
If you leave animals unattended or unsecured
in the veh icle, they could press buttons or
swit ches, for example.
As a result, they co uld:
Ractivate vehicle equipment and become
tr apped, for example
Ractivate or deactivate systems, there by
endangering other road users
Unsecured animals could also beflung around
the veh icle inthe event of an acc ident or sud-
den steering or braking, there byinjuring veh i-
cle occupants. There isa risk of an acc ident
and injury.
Never leave animals unattended inthe veh i-
cle. Alwa ys secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
RABS (Anti-lock Braking System)
(
Ypage 75)
RBAS (B rakeAssist System) (Ypage 76)
RBAS PLUS (B rakeAssist System PLUS) with
Cross-Traffic Assist (
Ypage 76)
RCOLLISION PREVENTION ASSIST PLUS
(distance warning function and Adaptive
Brake Assist) (
Ypage 78)
RESP®( Electronic StabilityProgram)
(
Ypage 80)
REBD (Electronic Brake force Distribution)
(
Ypage 84)
RADAPTIVE BRAKE (Ypage 84)
RPRE-SAFE®Brake (Ypage 84)
RSTEER CONTROL (Ypage 86)
Important safety notes
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can
neither reduce the risk of an accident nor
override the laws of physics. Driving safety
systems are merely aids designed to assist
driving. You are responsible for maintaining
the distance to the vehicle in front, for vehicle
speed, for braking in good time, and for stay-
ing in lane. Always adapt your driving style to
suit the prevailing road and weather condi-
tions and maintain a safe distance from the
vehicle in front. Drive carefully.
The driving safety systems described only
work as effectively as possible when there is
adequate contact between the tires and the
road surface. Pay particular attention to the
information regarding tires, recommended
minimum tire tread depths etc. in the "Wheels
and tires" section (
Ypage 288).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow
chains. Only in this way will the driving safety
systems described in this section work as
effectively as possible.
ABS (Anti-lock Braking System)
General information
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.
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.
Driving safety systems75
Safety
Z
You can select between the following states
of ESP®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated.
You could otherwise damage the drivetrain.
It may be best to deactivate ESP
®in the fol-
lowing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehi-
cle if the vehicle starts to skid or a wheel
starts to spin.
Deactivating/activating ESP
®
You can deactivate or activate ESP®via the
on-board computer (
Ypage 190).
ESP
®deactivated:
The å ESP
®OFF warning lamp in the
instrument cluster lights up.
ESP
®activated:
The å ESP
®OFF warning lamp in the
instrument cluster goes out.
Characteristics when ESP
®is deactivated
If ESP
®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in
the instrument cluster flashes. In such situa-
tions, ESP
®will not stabilize the vehicle. If you deactivate ESP
®:
RESP®no longer improves driving stability.
Rengine torque is no longer limited and the
drive wheels are able to spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
Rtraction control is still activated.
RESP®still provides support when you
brake.
Deactivating/activating ESP®(AMG
vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (
Ypage 75).
You can select between the following states
of ESP
®:
RESP®is activated.
RSPORT handling mode is activated.
RESP®is deactivated.
GWARNING
When SPORT handling mode is activated,
there is a greater risk of skidding and acci-
dents.
Only activate SPORT handling mode in the sit-
uations described in the following.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated.
You could otherwise damage the drivetrain.
82Driving safety systems
Safety
In the following situations, it may be better to
activate SPORT handling mode or deactivate
ESP
®:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Ron specially designated roads when the
vehicle's own oversteering and understeer- ing characteristics are desired
Driving in SPORT handling mode or without
ESP
®requires an extremely qualified and
experienced driver.
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehi-
cle if the vehicle starts to skid or a wheel
starts to spin.
Deactivating/activating ESP
®
XTo activate SPORT handling mode:
briefly press button :.
The M SPORT handling mode warning
lamp in the instrument cluster lights up.
The SPORT handling mode
message
appears in the multifunction display.
XTo deactivate SPORT handling mode:
briefly press button :.
The M SPORT handling mode warning
lamp in the instrument cluster goes out.
XTo deactivate ESP®: press button :until
the å ESP®OFF warning lamp lights up
in the instrument cluster.
The ÷ OFF
message appears in the mul-
tifunction display.
XTo activate ESP®: briefly press button :.
The å ESP®OFF warning lamp in the
instrument cluster goes out. The ÷ON
message appears in the multifunction dis-
play.
Characteristics of activated SPORT han-
dling mode
If SPORT handling mode is activated and one
or more wheels start to spin, the ÷ESP
®
warning lamp in the instrument cluster
flashes. ESP®only stabilizes the vehicle to a
limited degree.
When SPORT handling mode is activated:
RESP®only improves driving stability to a
limited degree.
Rtraction control is still activated.
Rengine torque is restricted to a limited
degree and the drive wheels are able to
spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
RESP®still provides support when you brake
firmly.
Characteristics when ESP
®is deactivated
If ESP
®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in
the instrument cluster does not flash. In such
situations, ESP
®will not stabilize the vehicle.
If you deactivate ESP
®:
RESP®no longer improves driving stability.
Rengine torque is restricted to a limited
degree and the drive wheels are able to
spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
Rtraction control is still activated.
RPRE-SAFE®is no longer available, nor is it
activated if you brake firmly and ESP®
intervenes.
Driving safety systems83
Safety
Z
lights up once, then KEYLESS-GO is deac-
tivated.
XTo activate:press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
Changing the settings of the locking
system
You can find information about this in the
Digital Operator's Manual.
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid/tail-
gate, the anti-theft alarm system will be trig-
gered (
Ypage 87).
There are several ways to turn off the alarm:
XTo deactivate the alarm with the Smart-
Key: press the %or& button on the
SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle. If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
XTo unlock the fuel filler flap:
insert the
SmartKey into the ignition lock.
Removing the mechanical key
XPush release catch :in the direction of
the arrow and at the same time remove
mechanical key ;from the SmartKey.
For further information about:
Runlocking the driver's door (Ypage 96)
Runlocking the trunk (Ypage 103)
Runlocking the tailgate (Ypage 103)
Rlocking the vehicle (Ypage 96)
Inserting the mechanical key
XPush mechanical key ;completely into
the SmartKey until it engages and release
catch :is back in its basic position.
92SmartKey
Opening and closing