Page 50 of 521

#
Tension TopTe ther belt 3from the boot. #
Make sure that there is enough seat belt
av ailable forfast ening. #
Alw ays comply with thech ild restra int sys‐
te m manufacturer's ins tallation instructions
when doing so. Child
restra int sy stems on the front
passenger seat Note
s onchild restra int sy stems on the front
passenger seat
Ac cident statistics show that children secured in
th ere ar seats are safer than children secured in
th e front seats. Forth is reason, Mercedes-Benz
stro ngly advises that you ins tall a child restra int
sy stem on a rear seat.
If it is absolutely necessary toins tall a child
re stra int sy stem on the front passenger seat,
alw ays obser vethe information on the automatic
front passenger airbag shutoff (→ page 35).By doing
this, you can avoidrisks caused by:
R Ach ild restra int sy stem that is not de tected
by the automatic front passenger airbag
shutoff.
R The unintentionally disabled front passenger
airbag.
R Incor rect positioning of thech ild restra int
sy stem. Wa
rning notice on the front-passen ger sun
visor: &
WARNING Risk of inju ryor death from
using a rear wa rd-facing child restra int
sy stem when the front passenger airbag
is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger
seat and thePA SSENGER AIR BAG OFF indi‐
cator lamp is off, the front passenger airbag
can deploy in theev ent of an accident.
The child could be stru ck bythe airbag.
Alw ays ensure that the front passenger air‐
bag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit.
NEVER use a rear wa rdfacing child restra int
on a seat pr otected byan ACTIVE FRONT
AIRB AGin front of it; DE ATH or SERIOUS
INJU RYtotheCH ILD can occur. If
th ePA SSENGER AIR BAG OFF indicator lamp
goes out, the front passenger airbag is enabled.
Be sure toobser vethe no tes on the safe trans‐
por tation of children (→ page41). Occupant sa
fety 47
Page 59 of 521
Re
commended "Universal" and "Semi-Universal" category ISOFIX child restra int sy stems We
ight categories Size categor yManufacturer Type Approval number
(E1 ...) Order number (col‐
our code: 9H95)
Catego ry0+:
up to13 kg
up toappr oximately
15 months EB
rita xRö mer BABY SAFE plu s0 4 301146B 6 6 86 8224
Catego ryI:
9 to 18 kg B1
BritaxRömer DUO plus0 4 301133A 00097037 00
A 000 970 58 00 %
You can obtain fur ther information on the
cor rect child restra int sy stem at any
Mercedes-Benz Service Centre. Child saf
ety loc ks Ac
tivating/deactivating the child saf ety lock
fo r the rear side windo ws &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If yo u lea vechildren unat tended in theve hi‐
cle, they may be able toset theve hicle in
motion, forex ample by:
R Releasing the parking brake.
R Shifting the transmission out of park
position j.
R Starting the engine. 56
Occupant saf ety
Page 60 of 521

In addition,
they may operate vehicle equip‐
ment. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tomobile phones if the
"Digital Car Key in the smartphone"
function is activated via the Mercedes
me connect web app. &
WARNING This poses an increased risk
of death due toheat strokeorexposure
to cold in theve hicle
If persons – particularly children – experi‐
ence prolonged exposure toextremely high
or low temp eratures, this poses a risk of
injury or evenfa ta l injur y. #
Never lea veanyone – pa rticularly chil‐
dren – unat tended in theve hicle. &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are tra velling in theve hicle, they
could:
R Open doo rs,th ereby endangering other
persons or road users.
R Get out of theve hicle and be hit by
oncoming traf fic.
R Ope rate ve hicle equipment and become
trapped, forex ample. #
Alw ays activate thech ild saf ety loc ks
ins talled if children are tra velling in the
ve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tomobile phones if the
"Digital Car Key in the smartphone"
function is activated via the Mercedes
connect me web app. Child saf
ety loc ksare available forth e side win‐
do ws inthere ar. #
Toactivate/deacti vate:press button 2.
Opening/closing the side window in there ar
is possible:
R With indicator lamp 1lit: via the switch
on the driver's door. Occupant saf
ety57
Page 61 of 521
R
With indicator lamp 1off: via the switch
on the cor responding rear door or driv‐
er's door. Pe
ts in the vehicle &
WARNING Risk of accident and inju ry
due toanimals left unsecured or unat‐
te nded in theve hicle
If yo u lea veanimals in theve hicle unatten‐
ded or unsecured, they could possib lypress
down buttons or switches.
Thereby an animal may:
R activate vehicle equipment and become
trapped, forex ample
R swit chsystems on or off and endanger
ot her road users
Uns ecured animals may be throw n around in
th eve hicle in theeve nt of an accident or
sudden steering and braking manoeuvres
and injure vehicle occupants in the process. #
Never lea veanimals in theve hicle unat‐
te nded. #
Alw ays cor rectly secu reanimals while
driving, e.g. using a suitable animal car‐
ri er. 58
Occupant saf ety
Page 62 of 521

Key
Overview of
key functions &
WARNING ‑ Thereis a risk of accident
and injury if you lea vechildren unat ten‐
ded in theve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R ope rate ve hicle equipment.
Moreo ver,th ech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake
R shifting the automatic transmission out of
park position P jor shifting manual
transmission into idle position.
R starting the engine. #
Never lea vechildren or animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
NO
TEDama getotheke y caused by
magnetic fields #
Keep theke yaw ay from strong mag‐
netic fields. 1
Locks
2 Battery check lamp
3 Unloc ks
4 Opens/closes the boot lid
The key loc ksand unlo cksth efo llowing compo‐
nents:
R The doors
R The boot lid
R The fuel filler flap
If yo u do not open theve hicle within appr ox‐
imately 40 seconds af ter unlocking:
R The vehicle is loc ked again. Opening and closing
59
Page 66 of 521

Problem
Possible causes/consequences and M
MSolutions #
Check the battery using the battery check lamp and replace if necessary . #
Use the emer gency keyto lock or unlock theve hicle . #
Have theke ych ecked at a qualified specialist workshop.
Yo u ha velost a key. #
Have theke y deacti vated at a qualified specialist workshop. #
If necessar y,ha ve the loc kschanged as well. Doors
Note
s onthe additional door lock The additional door lock is only
available for
ve hicles forth eUni ted Kingdom. &
WARNING Risk of inju ryto persons
inside theve hicle when the additional
door lock is activated
If th e additional door lock is activated, the
doors can no longer be opened from the
inside.
If th ere are persons in theve hicle, they can
no longer le aveth eve hicle, e.g. in hazardous
situations. #
Never lea vepersons unattended in the
ve hicle, particularly children, elderly
persons or persons in need of help. #
Ifth ere are persons in theve hicle, do
not activate the additional door loc k. The additional door lock is automatically activa‐
te d:
R After locking theve hicle with thekey.
R After locking theve hicle using KEYLESS-GO.
% After locking theve hicle, the horn can be
operated for a short time. %
After locking theve hicle, pressing the button
to centrally unlock theve hicle from inside
will trigger an alarm (→ page64).
If th e additional door lock is activated, the doors
cann otbe opened from the inside.
Yo u can deactivate the additional door lock by
deactivating the interior pr otection (→ page 86). Un
locking and opening the doors from the
inside Un
ited Kingdom onl y:obser vethe no tes on the
additional door lock (→ page 63). Opening and closing
63
Page 71 of 521

Un
locking/locking the driver's door using
th e emer gency key element %
Ifyo u wish tolock theve hicle entirely using
th e emer gency key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the emer gency key element. #
Insert the emer gency key as far as it will go
into opening 1inthe co ver. #
Pull and hold the door handle. #
Pull the co ver on the emer gency key as
st ra ight as possible away from theve hicle
until it releases. #
Release the door handle. #
Tounlo ck:turn the emer gency key anti-
clo ckwise toposition 1. #
Tolock: turnthe emer gency key clo ckwise to
position 1. #
Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly. Boot
Opening the bo
otlid &
WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if the
boot lid is open when the engine is running,
especially if theve hicle is in motion. #
Alw ays switch off the engine before
opening the boot lid. #
Never drive with the boot lid open. 68
Opening and closing
Page 72 of 521

*
NO
TEDama getothe boot lid byobs ta‐
cles ab ovetheve hicle The boot lid swings upwards when it is
opened. #
Therefore, make sure that there is suf fi‐
cient clearance ab ovethe boot lid. Yo
u ha vethefo llowing options toopen the boot
lid: #
With th e boot lid unloc ked, press theto p of
th est ar. #
Vehicles with boot lid conve nience clos‐
ing feature: withthe boot lid stopped in an
intermediate position, pull it upwards and
re lease as soon as it begins toopen.
% Toopen the boot lid, pull on thefo lded-out
st ar when there ve rsing camera is activated. #
Press and hold thep button on thekey. #
Pull boot lid remo teoperating switch 1. #
Vehicles with HANDS-FREE ACCESS: move
yo ur foot below the bumper (→ page71).
Ve hicles with boot lid conve nience closing:if
an object restricts the boot lid during the auto‐
matic opening process, the obs tacle de tection
st ops the boot lid. The obs tacle de tection func‐
tion is only an aid and is not a substitu teforyo ur
attentiveness. Closing
the boot lid &
WARNING Risk of inju ryfrom unsecu red
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r. &
WARNING Risk of becoming trapped
du ring au tomatic closing of the boot lid
Pa rts of the body could become trapped dur‐
ing automatic closing of the boot lid. More‐
ove r,people, e.g. children, may be standing Opening and closing
69