
Seat belts
Introduction Ac
orrectly fastened seat belt is the most effec-
tive means of restraining the movement of vehi- cle occupants in the event of an accident or
overturn .This reduces the risk of vehicle occu-
pants coming into contact with parts of the vehi-
cle interior or being thrown from the vehicle. The
seat belt also helps to keep the vehicle occu-
pants in the best position in relation to the air-
bag deployed.
The seat belt system consistso f:
R Seat belts
R Belt tensioners and belt force limiters
If the seat belt is pulled quickly or suddenly from the belt sash guide, the inertia reel locks. The
belt strap cannot be pulled out further.
The belt tensioner tightenst he seat belt to lie
close against your body in the event of acolli-
sion. However, it does not pull the vehicle occu-
pants back towards the seat backrest.
The belt tensioner also does not correct an
incorrec tseat position or the strap layoutofa
seat belt that is worn incorrectly.
If the seat belt is also fitted with abelt force
limiter and this is triggered, the force exerted by the seat belt on the vehicle occupant is reduced.
The belt force limiters on the front seats are
synchronised with the front airbags, which take
on apart of the deceleration force. This makes it
possible to reduce the forces to which vehicle
occupants are subjected during an accident.
! If the co-driver's seat is not occupied, do not
engage the seat belt tongue in the buckle on
the co-driver's seat. Otherwise, the belt ten-
sioner could be triggered in the event of an
accident and would have to be replaced.
Important safety notes G
WARNING
The seat belt cannot perform its intended pro- tective function if it is not fastened correctly. Also, an improperly fastened seat belt can
cause additional injuries in the event of an
accident, sudden braking or abrupt changes
of direction. There is an increased risk of
injury, possibly even fatal. Always make sure that all vehicle occupants
are wearing their seat belt properly and are
seated correctly.
G
WARNING
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 seatbelt is routed
across the centre of your shoulder. G
WARNING
Persons under 1.50 mtallc annot wear the
seat belts correctl ywithou tas uitable, addi-
tional restraint system. The seat belt cannot
perform its intende dprotective functio nifitis
not fastened correctly. Also, an improperly
fastened seat belt can cause additional inju-
rie sint he event of an accident, sudden brak-
ing or abrupt change sofdirection. There is an
increase driskofi njury ,possibl yevenf atal.
Secure persons less tha n1.50 mtall in asuit-
able restraint system.
If ac hild younger than twelve years old and
unde r1.50m in heigh tistravelling in th evehi-
cle:
R always secure th echild in achild restraint
system suitable for this Mercedes-Ben zvehi-
cle .The child restraint system must be appro-
priat etot heage, weigh tand siz eofthechild.
R always observ ethe instruction sand safety
note sont he"Automatic front-passenger
fron tairbag deactivatio nsystem"
(Y page 47)
R always observ ethe instruction sand safety
note son" Children in th evehicle"
(Y page 55) in addition to th echild restraint
system manufacturer' sinstallatio nand oper-
atin ginstructions. Occupant safety
41Safety Z

G
WARNING
Seat belts cannot protect as intended, if:
R they are damaged, have been modified, are
extremely dirty ,bleached or dyed
R the seat beltb uckle is damaged or
extremely dirty
R modifications have been made to the belt
tensioners, belta nchorages or inertia reels
Seat belts may sustain non-visibl edamage in
an accident, e.g. due to glass splinters. Modi-
fied or damaged seat belts can tear or fail ,for
exampl einthe event of an accident. Modified
seat beltt ensioners may be deployedu nin-
tentionall yorfail to be deployedw hen
required .There is an increased risk of injury,
possibly even fatal.
Never modify safety belts, seat beltt ension-
ers, seat belta nchorages and inertia reels.
Ensure that seat belts are not damaged or
worn and are clean. After an accident, have
the seat belts checked immediatel yataquali-
fied specialist workshop.
Mercedes-Benz recommends that you only use
seat belts which have been approved specifi-
call yfor yourv ehiclebyM ercedes-Benz. Other-
wise, yourv ehicle's genera loperating permit
coul dbei nvalidated.
AMG Performanc eseat: this seat is designed
for the standard three-point seat belt. If you fit
another multipoint seat belt, e.g. sport or racing
seat belts, the restraint system cannot provide
the best leve lofprotection. G
WARNING
If you feed seat belts through the opening in
the seat backrest, the seat backrest may be
damaged or may even brea kinthe event of an
accident. This poses an increased risk of
injury or even fatal injury.
Only use the standard three-point seat belt.
Never modify the seat belts ystem.
Correct seat beltu sePay attention to the safety notes about the seat
belt( Ypag e41). All vehicl
eoccupants must fasten their seat
belts correctly before you start driving. You
must alsom ake sure that all vehicl eoccupants
have fastened their seat belts correctly during
the journey.
When fastening yours eat belt, alwaysmake
sure that:
R the seat beltt ongue is inserted into the belt
buckle that belongs to the seat.
R the seat beltist ightened across yourb ody.
Avoid wearing bulky clothing, e.g. awinter
coat.
R the seat beltisn ot twisted.
Only then can the forces which occur be dis-
tributed over the area of the belt.
R the shoulders ection of the beltisa lways
routed across the centre of yours houlder.
The shoulders ection of the beltm ust not
come into contact with yourn eck or be routed
under youra rm.
R The lap beltm ust be taut and as low as pos-
sibl eover yourl ap.
The lap beltm ust alwaysber outed across
yourh ip joints and not across youra bdomen.
Pregnant wome nmust take particular care
with this. If necessary, pusht he lap beltdown
to yourh ip joint and pullitt ight using the
shoulders ection of the belt.
R The seat beltisn ot routed over sharp ,pointed
or fragile objects.
If such objects are located on or in yourc loth-
ing, e.g. pens, keys, spectacles, etc. stow
these in asuitable location.
R Only one perso nshould use each seat beltat
any one time.
Babies and children must never travel sitting
on the lap of another vehicl eoccupant. In the
event of an accident, they coul dbecrushed
between the vehicl eoccupant and seat belt.
R Do not secure any objects with aseat beltif
the seat beltisb eing used by one of the vehi-
cle's occupants.
You must alsom ake sure that objects, e.g.
cushions, are never placed between aperson
and the seat.
Seat belts are solely intended to secure and
restrai npersons. To secure objects, luggage or
loads, alwayso bserve the "Loading guidelines"
(Y page3 08). 42
Occupant safetySafety

Problems with automatic front-passenger front airbag deactivation
Be sure to observe the notes on "System self-test
"(Y page 50). Problem
Possible causes/consequences and
M
MSolutions 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 aper-
son with abuild corre-
sponding to that of an
adult. The classification of the person on the front-passenger seat is false.
X Make sure the condition sfor ac orrect classification of the person
on the front-passenger seat are met (Y page 48).
X If the PASSENGER AIR BAG OFF indicator lamp remains lit, the front-
passenger seat may not be used.
X Have the automatic front-passenger front airbag deactivation sys-
tem checked as soon as possible at aMercedes-Benz Service
Centre. The PASSENGER AIR
BAG OFF indicator lamp
does not light up and/or
does not stay on.
The front-passenger seatis:
R empty
R occupied with arear-
ward-facing child
restraint system The automatic front-passenger front airbag deactivation system is
malfunctioning.
X Make sure there is nothingb etween the seat and the child restraint
system.
X Make sure that the entire base of the child restraint system rests on
the seat cushion of the front-passenger seat.
X Make sure that the seat cushion length is fully retracted.
X When installing the child restraint system, make sure that the seat
belt is tight. Do not pull the seat belt tight with the front-passenger
seat adjustment .This could result in the seat belt and the child
restraint system being pulled too tightly.
X Check that the child restraint system is installed correctly.
X Make sure that no objectsa re applying additional weight to the
seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off and/or
the PASSENGER AIR BAG ON indicator lamp lights up, do not install
ar earward-facing child restraint system on the front-passenger
seat. It is recommended that you fit the child restraint system to a suitable rear seat.
X Have the automatic front-passenger front airbag deactivation sys-
tem checked as soon as possible at aMercedes-Benz Service
Centre. Deployment of belt tensioners and air-
bags
Important safety notes G
WARNING
After the airbag deploys, the airbag parts are
hot. There is arisk of injury.
Do not touch the airbag parts. Have a
deployeda irbag replaced at aqualified spe-
cialist workshop as soon as possible. G
WARNING
Pyrotechnic seat belt tensioners that have
been deployeda re no longer operational and
are unable to perform their intended protec-
tive function. This poses an increased risk of
injury or even fatal injury.
Therefore, have pyrotechnic belt tensioners
which have been triggered immediately
replaced at aqualified specialist workshop.
Mercedes-Benz recommends that you have the
vehicle towed to aqualified specialist workshop 52
Occupant safetySafety

G
WARNING
If you leave children unattended in the vehi-
cle, they may be abletos et the vehiclein
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position Por shift manua ltransmission into
neutral
R start the engine
In addition, they may operate vehicl eequip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alwayst ake the key
with you and lock the vehicle. Never leave
children unattended in the vehicle. G
WARNING
If persons (particularly children) are exposed
to heatorc old foraprolonged period, there is
ar isk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle. G
WARNING
If the child restraint system is placed in direct sunlight, the parts coul dbecome very hot.
Childre ncouldbes uffer burns by touching
these parts, in particular on the metallic parts
of the child restraint system. There is arisk of
injury.
If you and yourc hild leave the vehicle, always
make sure that the child restraint system is
not in direct sunlight. Cove ritwithablanket,
for example. If the child restraint system has
been expose dtodirect sunlight, leave it to
cool downb efore securing the child in it.
Never leave children unattended in the vehi-
cle.
Always ensure that all vehicl eoccupants have
their seat belts fastened correctly and are sitting
properly.P articular attention must be paidto
children.
Observe the safety notes on the seat belt
(Y page4 1) and the notes on how to use the seat
beltp roperly (Y page42). Chil
drestraint system
Observe the instructions for correct use of the
child restraint system (Y page60).
For safety reasons, Mercedes-Benz recom-
mends that you only use achild restraint system
recommende dbyMercedes-Benz
(Y page6 4). G
WARNING
If the child restraint system is incorrectly fit-
ted on the seat position suitable for this pur-
pose, it cannot perform its intended protec-
tive function. In the event of an accident,
sharp braking or asudden change in direction,
the child may not be held securely.T here is an
increased risk of serious or even fatal injuries.
Observe the manufacturer's installation
instructions and the correct use for the child
restraint system. Make sure that the entire
surface of the child restraint system is resting
on the seat surface. Never place objects
under or behind the child restraint system,
e.g. cushions. Only use child restraint sys-
tems with the original cover designed for
them. Only replace damaged covers with gen- uine covers. G
WARNING
If the child restraint system is fitted incor-
rectly or is not secured, it can come loos ein
the event of an accident, heav ybraking or a
sudden change in direction. The child
restraint system coul dbethrown about, strik-
ing vehicl eoccupants. There is an increased
risk of injury ,possibly even fatal.
Always fit child restraint systems properly,
even if they are not being used .Make sure
that you observe the child restraint system
manufacturer's installation instructions.
You willf ind further information on stowing
objects, luggage and loads securely under
"Loading guidelines" (Y page308). G
WARNING
Child restraint systems or their securing sys-
tems that have been damaged or subjected to al oa dinana ccident cannot perform their 56
Children in the vehicleSafety

ESP
®
monitors drivin gstability and traction, i.e.
powe rtransmission between the tyres and the
roa dsurface.
If ESP ®
detects tha tthe vehicl eisdeviating from
the direction desired by the driver ,one or more
wheels ar ebraked to stabilise the vehicle. The
engine outpu tisa lsom odified to kee pthe vehi-
cle on the desired course withi nphysical limits.
ESP ®
assists the driver when pulling away on
we tors lipper yroads .ESP ®
can also stabilise
the vehicl eduringb raking.
ETS/4ETS (Electroni cTraction System) i
Observe the "Important safety notes" sec-
tio n(Ypage 66).
ETS tractio ncontro lispartofE SP®
.
Tractio ncontro lbrakes the drive wheels indi-
viduall yiftheys pin. Thi senables yo utopull
away and accelerate on slippery surfaces ,for
exampl eifthe roa dsurface is slippery on one
side .Ina ddition, mor edrive torque is transfer-
red to the whee lorwheelswitht raction.
Tractio ncontro lremains active if yo udeactivate
ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 66). G
WARNING
If ESP ®
is malfunctioning ,ESP ®
is unabl eto
stabilise the vehicle. In addition, othe rdriving
safety system sareswitched off .Thisi ncrea-
ses the ris kofskidding and an accident.
Driv eonc arefully. Hav eESP®
checked at a
qualified specialis tworkshop.
When towing your vehicl eawayw itht he rear
axl eraised, observe the note sonESP®
(Y page 349).
If the å ESP®
OFF warning lamp lights up
continuously ,ESP ®
is deactivated.
If the ÷ ESP®
warning lamp lights up contin-
uously ,ESP ®
is not availabl eduetoam alfunc-
tion.
Observe the informatio nonwarning lamps
(Y page 287 )and displa ymessage swhich may
be shown in the instrument cluster
(Y page 254). Onl
yusewheels with the recommende dtyre
sizes. Onl ythenw illE SP ®
functio nproperly.
Characteristics of ESP ® General notes
If the ÷ ESP warning lamp goes ou tbefore
beginning the journey ,ESP ®
is automatically
active.
If ESP ®
intervenes ,the ÷ ESP®
warning lamp
flashe sinthe instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away ,onlyd epress the acceler-
ato rpedal as farasisn ecessary.
X Adapt your drivin gstyle to suit the prevailing
roa dand weather conditions.
EC Os tart/sto pfunction
The ECO start/sto pfunctio nswitches the
engine off automaticall yifthe vehicl estops
moving .Whenp ulling away again, the engine
starts automatically. ESP ®
remains in its previ-
ousl yselecte dstatus. Example: if ESP®
was
deactivated befor ethe engine wa sswitched off,
ESP ®
remains deactivated when the engine is
switched on again.
Deactivating/activatin gESP®
(except
Mercedes‑ AMGvehicles) Important safety notes
i Observe the "Important safety notes" sec-
tio n(Ypage 66).
Yo uc an select between the following statuses
of ESP ®
:
R ESP ®
is activated
R ESP ®
is deactivated G
WARNING
If yo udeactivate ESP ®
,E SP ®
no longe rsta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Onl ydeactivate ESP ®
in the situations descri-
be dint he following. 72
Driving safet
ysystemsSafety

X
To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO start-func-
tio norK EYLESS -GO:switch the ignition off
and open the driver's door.
X To deactivate: switch on the ignition.
Whe nleaving the vehicle, always take the key
with yo uand lock the vehicle. Anyone can start
the engine if avalid key ha sbeenleftinsid ethe
vehicle.
i The immobiliser is always deactivate
dwhen
yo us tart the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicl ewitht he key or
KEYLESS-GO.
Indicato rlamp :flashes. The alarm system
is primed afte rapproximatel yten seconds.
X To switc hoff:unlock the vehicl ewitht he key
or KEYLESS-GO.
or X Insert the key into the ignition lock.
Av isua land audibl ealarm is triggered if the
alarm system is primed and yo uopen:
R ad oor
R the vehicl ewitht he emergency key element
R the boot lid
R the bonnet
X To deactivate the alarm with the key: press
the % or& button on the key.
The alarm stops.
or X
Vehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove the Start/Stop but-
ton from the ignition lock (Y page 145).
X Insert the key into the ignition lock.
The alarm stops.
X To sto
pthe alarm using KEYLESS-GO:
grasp the outsid edoorh andle. The key must
be outsid ethe vehicle.
The alarm stops.
or X Press the Start/Stop button on the dash-
board .The key must be insid ethe vehicle.
The alarm stops.
The alarm does not switch off, eve nifyouclose
the open door tha thas triggered it, for example.
i If the alarm stays on for more than
30 seconds ,the Mercedes‑Be nz emergency
cal lsys tem automaticall ysend sam essage to
the Customer Assistance Centre. Thi sisdone
by means of atext message or adatac on-
nection.
The emergency cal lsystem send samessage
or establishes adatac onnectio nprovided
that:
R youh aves ubscribed to the Mercedes ‑Benz
emergency cal lsystem
R the Mercedes‑Be nz emergency cal lsys tem
ha sb eena ctivate dproperly
R the necessary mobil ephone network is
available Tow-away protection
Function An audibl
eand visua lalarm is triggered if your
vehicle's angle of inclinatio nisa ltere dw hile
tow-away protection is primed .Thisc an occu rif
the vehicl eisjacke dupono ne side,for exam-
ple.
Priming X
Make sure that:
R the doors are closed
R the boot li disclosed
Onl ythen is tow-away protection activated.
X Lock the vehicl ewitht he key or KEYLESS-GO.
Tow-away protection is activate dafter
approximatel y60s econds. 78
Protectio
nagains ttheftSafety

Deactivating
X
Unloc kthe vehicle wit hthe keyorK EYLESS-
GO.
or X Inser tthe keyintot he ignition lock.
Tow-away protection is switched of fautomat-
ically.
Deactivating To preven
tafalsea larm, deactivat etow-a way
protection if you loc kyour vehicle and it:
R is bein gtransported
R is bein gloaded onto aferry or car transporter,
fo re xample
R is parke donam ovable surface, e.g. in asplit-
level garage
You can deactivat etow-a way protection via the
multimedia syste m(seet he Digital Owner's
Manual).
Tow-away protection remain sdeactivated until:
R thev ehicle is unlocke dagain and
R ad ooriso penedand close dagain and
R thev ehicle is locke dagain Interior motion sensor
Function Whe
nthe interio rmotion sensor is primed ,a
visual and audible alar mistriggere difm ove-
men tisd etecte dinthevehicle interior. Thi scan
occur if someon ereaches into th evehicle inte-
rior, fo rexample.
Priming X
Mak esuret hat:
R thes idew indows are closed
R thes lidin gsunroof or th epanorama sliding
sunroof is closed
R there are no objects ,e.g.m ascots ,hanging
on th erear-vie wmirrororont hegrab han-
dles on th erooftrim
Thi sw ill preven tfalse alarms.
X Mak esuret hat: R
thed oors are closed
R thes lidin gsunroof or th epanorama sliding
sunroof is closed
R theb ootlid is closed
Only then is th einterior motion sensor acti-
vated.
X Loc kthe vehicle wit hthe keyorK EYLESS-GO.
The interio rmotion sensor is primed after
approximately te nseconds.
Deactivating X
Unloc kthe vehicle wit hthe keyorK EYLESS-
GO.
or X Inser tthe keyintot he ignition lock.
or X Press th eStart/Sto pbutton.
The ke ymustbeint hevehicle.
The interio rmotion sensor is automatically
switched off.
Deactivating To preven
tafalsea larm, deactivat ethe interior
motion sensor if you loc kyour vehicle and:
R people or animals remain in th evehicle
R thes lidin gsunroof or panorama slidin gsun-
roof remain sopen
R thes idew indows remain open
You can deactivat ethe interio rmotion sensor
via th emultimedia syste m(seet he Digital Own-
er' sM anual).
The interio rmotion sensor remain sdeactivated
until:
R thev ehicle is unlocke dagain and
R ad ooriso penedand close dagain and
R thev ehicle is locke dagain Protection against theft
79Safety Z

double lock function is activated as standard. It
is then not possible to open the doors from
inside the vehicle. You can deactivate the dou-
ble lock function by deactivating the interior
motion sensor (see the Digital Owner' sManual).
Opening/closing doors is then possible as fol-
lows: the doors can be opened from inside.
When alocked door is opened from inside the
vehicle, the previous unlocking proces swill be
acknowledged if the vehicle:
R has been locked with the locking butto nfor
the central locking or
R has been locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. Only the door which
has been opened from the inside is unlocked if
only the driver' sdoor had been previously
unlocked. Automatic locking feature
X
To deactivate: press and hold button :for
approximately five seconds until atone
sounds.
X To activate: press and hold button ;for
approximately five seconds until atone
sounds.
If you press one of the two buttons and do not
hear atone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing.
Therefore, you could be locked out if:
R the vehicle is being pushed
R the vehicle is being towed
R the vehicle is being tested on adynamometer i
You can activate and deactivate the auto-
matic locking mechanism via the multimedia
system (see the Digital Owner' sManual). Unlocking/locking the driver's door
using the emergency key element
i If you want to centrally lock the vehicle using
the emergency key element ,begin by press-
ing the locking butto nfor the interior locking
mechanism while the driver' sdoor is open.
Then lock the driver' sdoor using the emer-
genc ykey element. X
Inser tthe emergency key element int oopen-
ing :in the protective cap.
X Pull and hold the door handle.
X Pull the protective cap on the emergency key
as straight as possible away from the vehicle until it releases.
X Release the door handle. X
To unlock: turn the emergency key element
anti-clockwise as far as it will go to position
1.
X To lock: turn the emergency key element
clockwise as far as it will go to position 1.88
DoorsOpening and closing