
Airbags
Overvie
wofairbags 1
Knee airbag
2 Driver' sairbag
3 Front passenger front airbag
4 Windowbag
5 Sideimpact airbag
The ins tallation location of an airbag is identified
by theA IRB AG symbol. When activated, an airbag can pr
ovide addi‐
tiona lprotection fort he respectiv evehicle
occupant. AIRB
AG Potentia lprotection for
…
Knee airbag Thigh ,knee and lo werleg
Driver's airbag,
front passenger
front airbag Head and
ribcage
Wi ndowbag Head
Sid eimpact air‐
bag Ribca
ge,a lso pelvis for
front sea toccupants The front passenger front airbag can onl
ybe
depl oyed in an acciden tifthePASSENGER AIR
BA GO FFindicator lam pisoff.Ift he front
passenger seat is occupied, mak esure, bo th
befor eand during thej ourne y,that thes tatus of
th ef ront passenger airbag is cor rect
(→ page 42). *
NO
TEImpo rtant points toremember if
th ef ront passenger seat is unoccupied In an accident,
thec omponents of the
re stra int sy stem ma ydeplo yunnecessarily
on thef ront passenger side if:
R Ther eareheavy objects on thef ront
passenger seat.
R The seat belt tongu eise ngaged in the
seat belt buckle of thef ront passenger
seat and thef ront passenger seat is
unoccupied. #
Stow object sinas uitable place. #
Onlyone person should use eac hseat
belt at an yone time. Pr
otection bythea irbags Depending on
thea cciden tsituation ,anairbag
ma ysupplement thep rotection of fere dbyac or‐
re ctly fastened seat belt. 38
Occupant saf ety

&
WARNING Risk of inju ryor deat hdueto
incor rect sea tposition
If yo ud eviat ef romt he cor rect sea tposition,
th ea irbag cann otper form its intended pro‐
te ctiv efunction and deployment ma yeven
cause fur ther injuries.
To avo id hazardous situations ,alway sm ake
sur ethat all vehicle occupants:
R Have their seat belt fastened cor rectly,
including pregnant women.
R Ares eated properly and keep as fara way
as possible from thea irbags.
R Obser vethef ollowing information. #
Alw aysm akes uret hat ther ea reno
objects between thea irbag and vehicle
occupant. To
avo idther isk sresulting from thed eployment
of an airbag, eac hvehicle occupant must
obser vethef ollowing information:
R Befor estartin gy our journe y,adjus tyour seat
cor rectly ;the driver's seat and front passenger seat should be mo
vedasf ar back
as possible.
When doing so, alw ayso bser vethei nforma‐
tion on thec orrect driver's sea tposition
(→ page 93).
R Onlyhold thes teering wheel bythes teering
wheel rim. This allow sthe airbag tobe fully
deplo yed.
R Alw aysl ean agains tthe seat backres twhen
th ev ehicle is in motion. Do no tlean forw ards
or agains tthe door or side windo w.Youm ay
ot herwise be in thed eployment area of the
airbags.
R Alw aysk eep your feet on thef loor .Don ot
put your feet on thec ockpit, fore xamp le.
Yo ur feet ma yotherwise be in thed eploy‐
ment area of thea irbag.
R Ifch ildren ar etrave lling in thev ehicle,
obser vethea dditional no tes( → pag e46).
R Alw ayss towa nd secur eobject scorrectly. Objects in
thev ehicle interior ma ypreve nt an
airba gfromf unctioning cor rectly .Eachv ehicle
occupant mus talway sm akes ureoft hefollow‐
ing:
R Ther eareno people, animals or objects
between thev ehicle occupants and an air‐
bag.
R Ther eareno objectsb etwe en thes eat, door
and door pillar (B-pillar).
R Ther eareno har dobjects, e.g. coat hangers,
hanging on theg rabh andles or coat hooks.
R Ther eareno accessor yparts, suc hascup
holders, attached tothev ehicle within the
deployment area of an airbag, e.g. on doors,
side windo wsor side panelling.
R Ther eareno heavy ,sharp-edged or fragile
object sinthe poc kets of your clo thing. Store
suc hobjectsinas uitable place. Occupant saf
ety39

Re
duce dairbag pr otection &
WARNING Risk of inju ryfrom modi fica‐
tions tothea irbag co ver
If yo um odify an airbag co verora ffix objects
suc hass tickers to it,thea irbag can no lon‐
ge rfunction cor rectl y. #
Neverm odify an airbag co vera nd do
no ta ffix objectstoi t.The ins
tallation location of an airbag is identified
by theA IRB AG symbol (→ page38). &
WARNING Risk of inju ryor deat hdueto
th eu se of unsuitable seat co vers
Uns uitable seat co vers can obstruct or pre‐
ve nt thed eployment of thea irbags integra‐
te di ntot he seats.
Consequentl y,thea irbags cann otprotect
ve hicle occupants as they ared esigned to
do. In addition, theo peration of thea uto‐
matic front passenger airbag shutof fcould
be restricted. #
Yous hould on lyuse seat co vers that
ha ve been appr oved fort he cor respond‐
ing seats byMercedes-Benz. &
WARNING Risk of inju rydue tomalfunc‐
tions of thes ensor sinthe door panelling
Sensor stocontrol thea irbags ar elocated in
th ed oors. Modification sorworkn otper‐
fo rm ed cor rectl ytot he door sordoor panel‐
ling, as well as damaged doors, can lead to
th ef unction of thes ensor sbeing impaired.
The airbags might therefor enotfunction
proper lyan ym ore.
Consequent ly,t he airbags canno tprotect
ve hicle occupants as they ared esigned to
do. #
Neverm odify thed oor sorp arts of the
doors. #
Alw aysh ave workon thed oor sord oor
panelling car ried out at aqualified spe‐
cialis tworks hop. &
WARNING Risk of inju rydue todeplo yed
airbag
Ad eplo yeda irbag no longer of fers anyp ro‐
te ction and canno tprovide thei ntended pro‐
te ctiv efunction in thee vent of an accident. #
Have thev ehicle towe dtoaq ualified
specialis tworks hop in order tohave the
deplo yeda irbag replaced. Ha
ve deplo yeda irbags replaced immediately. St
atus of thef ront passenger airbags Fu
nction of thea utomatic front passenger
front airbag deactivation sy stem
The automatic front passen gerfront airbag deac‐
tivation sy stem is able todetect whe ther the
front passenger sea tisoccupied byap erson or
ac hild restra int sy stem. The front passenger air‐
bag is enabled or disabled accordingly. 40
Occupant saf ety

R
Suitable positioning of thec hild restra int sys‐
te m( →pag e54). PRE-SAFE
®
sy stem PRE-
SAFE®
(Pre-Crash Saf ety-Sy stem) PRE-
SAFE®
is able todetect cer tain critical driv‐
ing situations and implemen tpre-em ptivem eas‐
ures toprotect thev ehicle occupants.
PRE-SAFE ®
can implement thef ollowing meas‐
ures independentl yofeacho ther:
R Tightening thes eat belts on thed rive r's seat
and front passenger seat.
R Closing thes ide windo ws.
R Vehicles with sliding sunroof: closingthe
sliding sunroof.
R Vehicles with memor yfunction: moving
th ef ront passenger seat toam oref avo ura‐
ble seat position.
R Vehicles with multicontour seat: increas‐
ing thea ir pressur einthe seat side bols ters
of thes eat backrest. R
PRE-SAFE ®
Sound: pr ovided that them ulti‐
media sy stem is switched on, generates a
brie fnoise signa ltostimulat ethe innat epro‐
te ctiv em echanism of aperson's hea ring.
* NO
TEDama gecaused byobject sinthe
fo ot we ll or behin dthe seat The automatic adjustment of
thes eat posi‐
tion ma yresult in damag etothe seat and/or
th eo bject. #
Stow object sinas uitable place. Re
versing theP RE- SAFE®
sy stem measures If an acciden
tdid no toccur ,the pre-em ptive
measures that we retake na re re versed.
Yo uw ill need toper form certains ettings your‐
self. #
Ifth es eat belt pre-tensioning is no treduced,
mo vethes eat backres tbacks lightl y.
The locking mechanism releases. Fu
nction of PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus) PRE-
SAFE®
PLUS can de tect cer tain impacts,
particular lyan imminent rear impact ,and take
pre-em ptivem easures toprotect thev ehicle
occupants. These measures canno tnecessarily
pr eve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thef ollowing
measures independentl yofeacho ther:
R Tightening thes eat belts on thed rive r's seat
and front passenger seat.
R Activating ther ear hazar dwarning light sata
higher flashin gfrequ enc y.
R Increasing brak epressure when thev ehicle
is stationar y.This brak eapplication is cancel‐
led automaticall ywhen thev ehicle pulls
aw ay.
If an accident did no toccur ,the pre-em ptive
measures that we retake na re re versed. Occupant saf
ety45

Sy
stem limitations
The sy stem will no tinitiat eanyaction in thef ol‐
lowing situations:
R when reve rsing
or
R when thev ehicle is towing atrailer and there
is ar isk of arear impact
The sy stem will no tinitiat eanybraking applica‐
tion in thef ollowing situations:
R whils tdriving
or
R when entering or exitin gap arkin gspace
while using ActiveP arking Assist Information on PRE-
SAFE®
Impulse Side If an imminent side impact is de
tected, PRE-
SA FE®
Impulse Side can pre-emptively mo vethe
front-seat vehicle occupant's upper body
to wa rdst he centre ofthev ehicle. It does this by
ra pidl yinflating an air cushion in theo uter seat
side bols teroft he seat backres tonthe side on
whic hthe impact is anticipated. This increases th
ed ista nce betwee nthe door and thev ehicle
occupant.
If PRE-SAFE ®
Impulse Side has been deplo yedor
is faulty ,the PRE-SAFE impulse side inoperative
See Owner's Manual displaymessag eisshown
(→ pag e466). Children in
thev ehicle Note
sont he saf etransportation of children &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unat tende dint hevehi‐
cle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
R Releasing thep arking brake.
R Shifting thet ransmission out of park
position j.
R Startin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment. #
Neverlea ve children and animals unat‐
te nde dint hevehicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle.
This also applies tomobil ephones if the
"Digital Car Keyint he smartphone"
function is activated via theM ercedes
me connect weba pp. &
WARNING Thisp oses an increased risk
of deat hduetoheat strokeorexposure
to cold in thev ehicle
If persons –particularly children –expe ri‐
enc eprolonged exposur etoextremely high
or lo wtemperatures, this poses arisk of
inju ryor eve nfatal injur y. #
Neverlea ve anyone –p articularly chil‐
dren –unat tende dint hevehicle. &
WARNING Risk of bu rnsw hen thec hild
seat is exposed todirect sunlight
If th ec hild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up. 46
Occupant saf ety

%
When thev ehicle is star tedw itht he keyin
th es towa ge compartment of thec ent recon‐
sole, thek eyfunction sareautomatical ly
activated (→ page169). Re
moving/insertin gthe eme rgency key #
Toremo ve: press release knob 1.
Emer gency key2is pushed out slight ly.#
Pull out emer gency key2until it en gage sin
th ei ntermediat eposition.
% Youc an use thei ntermediat eposition of
emer gency key2toattac hthe keytoak ey
ri ng. #
Press release knob 1again and fully
re mo veemer gency key2. #
Toinser t:press release knob 1. #
Inser temer gency key2tothei ntermediate
position or full yuntil it engages. Re
placing the keyb attery &
DANG ER Serious damag etohealth
caused byswallowing batteries
Batteries contain toxic and cor rosiv es ub‐
st ances. Swallowing bat teries ma ycause
serious damag etohealth.
Ther eisar isk offata linjur y. #
Keep batteries out of ther eac hofc hil‐
dren. #
If batteries ar eswallowe d, seek medical
attention immediately. +
ENVIRONMEN
TALN OTE Environmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
in pollutants. It is
illegal todispose of them wit hthe household
ru bbish. #
Dispose of batteries in an
environmen tallyr esponsibl emanner.
Ta ke dischar gedb atteries toaq ualified
specialis tworks hop or toac ollection
poin tfor used batteries. Re
quirements:
R Your equir eaCR2 0323Vc ell batter y.
Mercedes-Benzr ecommendsthat youh ave the
batter yreplaced at aqualified specialis twork‐
shop. 68
Opening and closing

Problem
Possible causes/consequences and M
MSolutions
R The keyisf aulty. #
Activat eKEYLESS-G O. #
Chec kthe batter yusing theb atter ychec klam pand replace if necessar y. #
Use thee mer gency keytol ockoru nlockthe vehicle . #
Have thev ehicle and keyc hec kedataq ualified specialis tworks hop. Ac
tivating/deactivatin gthe automati cloc k‐
ing feature The
vehicle is loc keda utomatically when the
ignition is switched on and thew heels ar eturn‐
ing fast erthan walkin gpace. #
Toactivate: press and hold button 2for
appr oximatel yfives econds until an acoustic
signal sounds. #
Todeactivate: press and hol dbutton 1for
appr oximatel yfives econds until an acoustic
signal sounds.
Ther eisad anger of being loc kedo ut if thef unc‐
tion is activated:
R While thev ehicle is being tows tarted/
pushed.
R Onaroller dynamome ter. 74
Opening and closing

If
th et ailgat ehas been loc kedf romt he outside,
or thec hild saf etyl oc kh as been activated, the
ta ilgat ecanno tbeu nlockedw ithb utton 1.
The tailgat eise quipped wit hanautomatic
obs tacle de tection function. If asolid object
bloc ksorrestricts thet ailgat ewhen automati‐
call yopening, this proces sisstopped. The auto‐
matic obs tacle de tection function is only an aid.
It is no tasubstitu te fory our attentiveness when
opening thet ailgate. Closing
thet ailgate &
WARNING Risk of inju ryfrom unsecu red
items in thev ehicle
If objects, luggag eorloads ar enotsecured
or no tsecured suf ficientl y,they could slip,
tip ove rorbet hrow na roun da nd thereb yhit
ve hicle occupants.
Ther eisar isk of inju ry,p articularly in the
ev ent of sudden braking or asudden change
in direction. #
Alw ayss towo bjectsins uchaw aythat
th ey canno tbethrow na round. #
Befor ethe journe y,secur eobjects, lug‐
ga ge or loads agains tslipping or tipping
ove r. &
WARNING Risk of becoming trapped
du ring au tomatic closing of thet ailgate
Pa rtsoft he body could become trapped dur‐
ing automatic closing of thet ailgate. More‐
ove r,people, e.g. children, ma ybestanding
in thec losing area or ma yenter thec losing
area during thec losing process. #
Mak esuret hat nobody is in thev icinity
of thec losing area during thec losing
process.
Use one of thef ollowing options tostop the
closing process:
R press thep button on thek ey.
R press or pull ther emo teoperating switch
on thed rive r's door. R
press thec losing or locking button on the
ta ilgate.
R Pull thet ailgat ehandle. Ve
hicles with HANDS-FREE ACCESS: it is also
possible tostop thec losing process bymoving
yo ur foot inak ickin gmotion under ther ear
bumper.
To close thet ailgate, thef ollowing options
ar ea vailable: #
Pullthe tailgat edownwards slightly .Release
it as soon as it begins toclose. #
Vehicles with HANDS-FREE ACCESS: move
yo ur foot belo wthe bumper (→ page79). #
Vehicles with KEYLESS-GO: press and hold
the p button on thek ey(wit hthe keyin
th ev icinit yoft hevehicle). Opening and closing
77