Overview of suitable seats in
theve hicle for in stalling a child restra int sy stem Securing sy
stems forch ild restra int sy stems Ve
hicle seat
Left/right rear seat
Preferred securing sy stem:
® LATC H-type (ISOFIX) child
seat securing sy stem
(/ page 41 )
¯ Ifav ailable, also secure with
To pTe ther (/ page 42) Alternative securing sy
stem:
R Seat belt on vehicle seat
Co-driver seat Securing system:
R Seat belt on vehicle seat
Center rear seat
Securing system:
R Seat belt on vehicle seat
¯ Ifav ailable, also secure with
To pTe ther (/ page 42) Ac
tivating/deactivating the special seatbelt
re tractor of the seat belt &
WARNING Risk of inju ryor death if a
seat belt is unfas tened while theve hicle
is in motion
If th e seat belt is released while theve hicle is
in motion, thech ild restra int sy stem is no lon‐
ge r cor rectly secu red. The child seat saf ety
fe ature is deactivated and the seat belt is
dr aw n in a bit bythe inertia reel.
It is therefore not possible toengage the seat
belt again. #
Pull over and stop theve hicle safely as
soon as possible, paying attention to
ro ad and traf fic conditions. #
Activate thech ild seat saf etyfe ature
again and cor rectly secu rethech ild
re stra int sy stem. Re
quirements
When enabled, the special seatbelt retractor
ensures that the seat belts on the co-driver seat
and there ar seats do not slac ken once thech ild
re stra int sy stem is secured.
The seat belts on thefo llowing seats are equip‐
ped with a special seatbelt retractor:
R Co-driver seat
R Rear seats Installing a
child restra int sy stem #
When ins talling a child restra int sy stem,
alw ays obser vethe manufacturer's ins talla‐
tion and operating instructions forth ech ild
re stra int sy stem used as well as the no tes in
th ese Operating Instructions. #
Pull the seat belt smoo thly from the seat belt
outlet. #
Enga gethe seat belt tongue in the seat belt
buckle.
Ac tivating the special seatbelt retractor #
Extend the seat belt fully and then allow the
inertia reel to retract the belt.
When the special seatbelt retractor is acti va‐
te d, you should hear a ratcheting sound. #
Push thech ild restra int sy stem down until the
seat belt is tight.
Deactivating the special seatbelt retractor #
Press there lease button of the seat belt
buckle. #
Hold the seat belt tongue and guide ba ckto
th e seat belt outlet. 40
Occupant saf ety
At
taching thech ild restra int sy stem with
LA TC H-type (ISOFIX) tothere ar seat Installing a
LATC H-type (ISOFIX) child
re stra int sy stem on there ar seat &
WARNING Risk of inju ryor death if the
permissible gross mass of thech ild and
ch ild restra int sy stem is exceeded
Fo rLA TC H-type (ISOFIX) child restra int sys‐
te ms in which thech ild is secured using the
integ rated seat belt in thech ild restra int sys‐
te m, the permissible gross mass of thech ild
and child restra int sy stem is 73lb (33 kg).
If th ech ild and thech ild restra int sy stem
to ge ther we igh more than 73 lb (33 kg),the
LA TC H-type (ISOFIX) child restra int sy stem
with integrated seat belt does not of fer suf fi‐
cient pr otection. An excessive load may be
placed on theLA TC H-type (ISOFIX) child seat
attachments and thech ild may not be
re stra ined in theeve nt of an accident, for
ex ample. #
Ifth ech ild and thech ild restra int sys‐
te m toge ther we igh more than 73 lb
(33 kg), use only a LATC H-type (ISOFIX)
ch ild restra int sy stem that secures the
ch ild with theve hicle seat belt. #
Also secure thech ild restra int sy stem
with theTo pTe ther belt, if available. Alw
ays comply with the information about the
mass of thech ild restra int sy stem:
R Inthe manufacturer's ins tallation and operat‐
ing instructions forth ech ild restra int sy stem
used
R On a label on thech ild restra int sy stem, if
av ailable
Check regularly that the permissible gross mass
of thech ild plus thech ild restra int sy stem is not
exc eeded.
When ins talling a child restra int sy stem, obser ve
th efo llowing:
0073 Alw
ays obser vethe cor rect use and sui tabil‐
ity of the seats for attaching a child restra int
sy stem.
0073 Alw
ays comply with the manufacturer's
ins tallation and operating instructions forthe
ch ild restra int sy stem used. 0073
Make sure
that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards.
® When ins talling a LATC H-type (ISOFIX) child
re stra int sy stem, also obser vethefo llowing:
0073 When using a category 0/0+ baby car
seat and a category I rear wa rd-facing
ch ild restra int sy stem on a rear seat: the
re ar seat must be ins talled in the direction of
tra vel.Ad just there ar seat and/or front seat
so that the front seat does not touch the
ch ild restra int sy stem.
0073 When using a category I
forw ard-facing
ch ild restra int sy stem: the backrest of the
ch ild restra int sy stem must, as far as possi‐
ble, lie flat against the backrest of theve hi‐
cle seat.
0073 Fo
r cer tain child restra int sy stems of weight
category II or III, there may be limitations for
th e maximum size setting, e.g. due topossi‐
ble con tact wi th thero of.
0073 The
child restra int sy stem must not be trap‐
ped between thero of and the seat and/or
twis ted when ins talled.
0073 The
child restra int sy stem must not be put
under stra in by the head restra ints. Adjust
th e head restra ints as appropriate. 1
LATC H-type (ISOFIX) mounting brac kets
Before every journe y,make sure that theLA TC H-
type (ISOFIX) child restra int sy stem is engaged
cor rectly in bo thmounting brac kets in theve hi‐
cle. Occupant saf
ety41
*
NO
TEBe careful not todamage the seat
belt forth e center seat when ins talling
th ech ild restra int sy stem #
Make sure that the seat belt is not trap‐
ped. #
Attach theLA TC H-type (ISOFIX) child restra int
sy stem toboth mounting brac kets 1 inthe
ve hicle. Securing
TopTe ther &
WARNING Risk of inju rydue toincor rect
attachment of theTo pTe ther belt
If yo u attach theTo pTe ther belt incor rectl y,
e.g. on an eyelet in the cargo compartment,
th ech ild restra int sy stem will not ha vebeen
secured cor rectly.
In an accident, it will therefore be unable to
pr ov ide the intended le vel of pr otection. #
Only ever attach theTo pTe ther hook to
th e designated TopTe ther anchorage. ¯
Ifth ech ild restra int sy stem is equipped
with a TopTe ther belt:
The risk of injury can be reduced byTo p
Te ther. The TopTe ther belt enables an
additional connection between thech ild
re stra int sy stem attached with LATC H-type
(ISOFIX) and theve hicle. To
pTe ther anchorages 1are located on the
back of there ar ben chseat on the bench seat
legs. #
If necessar y,mo vethe head restra int
upwards (/ page75). #
Installth eLA TC H-type (ISOFIX) child restra int
sy stem with TopTe ther. Comply with thech ild
re stra int sy stem manufacturer's ins tallation
instructions when doing so. #
Guide TopTe ther belt 3under the head
re stra int between the two head restra int bars. #
Hook TopTe ther hook 2into TopTe ther
anchorage 1without twisting. #
Tension TopTe ther belt 3. Comply with the
ch ild restra int sy stem manufacturer's ins talla‐
tion instructions when doing so. #
If necessar y,slide the head restra int down‐
wa rds (/ page75). Make sure that you do
not inter fere with the cor rect routing of To p
Te ther belt 3. Securing
thech ild restra int sy stem with the
seat belt Securing
thech ild restra int sy stem with the
seat belt on there ar seat
When ins talling a belt-secured child restra int sys‐
te m, obser vethefo llowing:
0073 Alw
ays comply with the manufacturer's
ins tallation and operating instructions forthe
ch ild restra int sy stem used.
0073 When using a category 0/0+ baby car
seat and a category I rear wa rd-facing
ch ild restra int sy stem on a rear seat:
adju stthe front seat so that the seat does
not touch thech ild restra int sy stem.
0073 When using a category I
forw ard-facing
ch ild restra int sy stem: remo vethe head
re stra int from there spective seat, if possi‐
ble.
Af terth ech ild restra int sy stem has been
re mo ved, replace the head restra ints imme‐
diately and adjust them cor rectly. 42
Occupant saf ety
0073
The backrest of
thefo rw ards- facing child
re stra int sy stem must, as far as possible,
re st on the backrest of there ar seat.
0073 Fo
r cer tain child restra int sy stems of weight
category II or III there may be limitations for
th e maximum size setting, e.g. due topossi‐
ble con tact wi th thero of.
0073 The
child restra int sy stem must not be ten‐
sioned between thero of and the seat cush‐
ion and/or be ins talled facing the wrong
direction. Where possible, adjust the seat
cushion inclination accordingly.
0073 The
child restra int sy stem must not be put
under stra in by the head restra int. Adjust the
head restra ints as appropriate.
0073 Make sure
that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards.
The seat belts on thefo llowing seats are equip‐
ped with a special seatbelt retractor:
R Co-driver seat
R Rear seats
When enabled, the special seatbelt retractor
ensures that the seat belts on the co-driver seat
and there ar seats do not slac ken once thech ild
re stra int sy stem is secured. (/ page 40).#
Installth ech ild restra int sy stem.
The base of thech ild restra int sy stem must
lie fully on the seat cushion of there ar seat. #
Always make sure that the shoulder belt strap
is cor rectly routed from the seat belt outlet of
th eve hicle tothe shoulder belt guide on the
ch ild restra int sy stem.
The shoulder belt stra p must be routed for‐
wa rds and down wards from the seat belt out‐
let.
Note s onrear wa rd-facing child restra int sys‐
te ms
The co-d rive r front airbag cannot be disabled.
Alw ays ins tall a rear wa rd-facing child restra int
sy stem on a suitable rear seat, but ne ver on the
co-driver seat. Obser vethe manufacturer's ins tal‐
lation and operating instructions forth ech ild
re stra int sy stem used.
Note s on a child restra int sy stem on the co-
driver seat
Ac cident statistics show that children secured on
th ere ar seats are safer than children secured on
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.
Securing thech ild restra int sy stem with the
seat belt on the co-d rive r seat
When ins talling a belt-secured child restra int sys‐
te m on the co-driver seat, alw ays obser vethefo l‐
lowing:
0073 Obser
vethe manufacturer's ins tallation and
operating instructions forth ech ild restra int
sy stem used.
0073 The backrest of a
forw ard-facing child
re stra int sy stem must, as far as possible, lie
fl at against the backrest of the co-driver
seat.
0073 Fo
r cer tain child restra int sy stems of weight
category II or III there may be limitations for
th e maximum size setting, e.g. due topossi‐
ble con tact wi th thero of.
0073 The
child restra int sy stem must not be ten‐
sioned between thero of and the seat cush‐
ion and/or be ins talled facing the wrong
direction.
0073 The
child restra int sy stem must not be put
under stra in by the head restra int. Adjust the
head restra ints as appropriate.
0073 Ne
ver place objects under or behind the
ch ild restra int sy stem, e.g. cushions.
The seat belt on the co-driver side is equipped
with a special seatbelt retractor.
When enabled, the special seatbelt retractor
ensures that the seat belt does not slac ken once
th ech ild restra int sy stem is secured
(/ page 40). #
Set the co-driver seat as far back as possible
and mo vethe seat into the highest position
possible. #
Fully retract the seat cushion dep thadjust‐
ment. #
Set the seat cushion angle in such a wayth at
th e front edge of the seat cushion is in the
highest position and there ar edge of the seat
cushion is in the lo west position. #
Set the seat backrest tothe most vertical
position possible. #
Installth ech ild restra int sy stem.
The base of thech ild restra int sy stem must
lie fully on the co-driver seat cushion. #
Always make sure that the shoulder belt strap
is cor rectly routed from the seat belt outlet of Occupant saf
ety43
th
eve hicle tothe shoulder belt guide on the
ch ild restra int sy stem.
The shoulder belt stra p must be routed for‐
wa rds and down wards from the seat belt out‐
let. #
If necessar y,adjust the seat belt outlet and
th e co-driver seat as appropriate. Child saf
ety loc ks Ac
tivating/deactivating child saf ety loc ksfor
th e doors &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve 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 and be stru ck byoncoming traf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R Releasing the parking brake.
R Changing the transmission position.
R Starting theve 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. #
Keep theve hicle key out of reach of
ch ildren. &
WARNING Risk offata l injury due to
ex posure toextreme heat or cold in the
ve hicle
If people – particular lych ildren – are exposed
to extreme temp eratures over an extended
pe riod of time, there is a risk of serious or
eve nfa ta l injur y. #
Never lea veanyone – pa rticularly chil‐
dren – unat tended in theve hicle. #
Never lea veanimals in theve hicle unat‐
te nded. &
WARNING Risk of accident and injury
due tochildren left unat tended in the
ve hicle
If ch ildren are tra veling in theve hicle, they
could, in pa rticular:
R Open doors, thereby endangering other
persons or road users
R Get out and be stru ck byoncoming traf fic
R Operate vehicle equipment and become
trapped, forex ample #
Always activate thech ild saf ety loc ks
ins talled if children are tra veling in the
ve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. The
following doors ha vechild saf ety loc ks:
R Sliding doo rs
The child saf ety loc kson the doors secure each
door separatel y.The doors can no longer be
opened from the inside (e xception: electric slid‐
ing door). When theve hicle is unloc ked, the door
can be opened from the outside.
If th e electric sliding door is secured, only the
sliding door controls in there ar compartment are
deactivated. The electric sliding door can be
opened at any time using the switch in the center
console Example: sliding door
child saf ety lock #
Slide child saf ety lock bolt 1toposition 0048
(activate) or 0049(deactivate). 44
Occupant saf ety
Cor
rect driver's seat position &
WARNING Risk of inju ryfrom adju sting
th eve hicle settings while theve hicle is in
motion
Yo u could lose control of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra int, the
st eering wheel or the mir ror and fasten
yo ur seat belt. Comply with
thefo llowing when adjusting steer‐
ing wheel 3, safety belt 2and driver's seat 1:
R Sit as faraw ay as possible from the driver's
airbag.
R Sit in an upright position.
R Your thighs are slight lysuppor tedby the seat
cushion.
R Your legs are not fully extended and you can
easily fully press on the pedals.
R The back of your head is suppo rted at eye
le ve lby the middle part of the head restra int.
R You can reach thesteering wheel with your
arms in a slightly bent position.
R You can mo veyour legs freel y.
R You can easily see all displ ays on the instru‐
ment displa y. R
You ha vea good overview of the traf fic situa‐
tion.
R Your saf ety belt fits securely around your
body and runs across the middle of your
shoulder, your pelvic area and groin. Seats
Ad
justing the front seats manually (without
Seat Comfort Package) &
WARNING Risk of becoming trapped if
th e seats are adjus tedby children
Children could become trapped if they adjust
th e seats, particularly when unattended. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Never lea vechildren unat tended in the
ve hicle. &
WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. Obser
vethe saf ety no tes on "Airbags" and "Chil‐
dren in theve hicle". &
WARNING Risk of accident due tothe
driver's seat not being engaged
If th e driver's seat is not engaged, it could
mo veunexpectedly while theve hicle is in
motion.
This could cause youto lose control of the
ve hicle. #
Always make sure that the driver's seat
is engaged before starting theve hicle. 64
Seats and stowage
&
WARNING Risk of inju ryfrom adju sting
th eve hicle settings while theve hicle is in
motion
Yo u could lose control of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra int, the
st eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of becoming trapped if
th e seat height is adjus ted carelessly
If yo u adjust the seat height carelessly, you or
ot her vehicle occupants could be trapped and
th ereby injured.
Children in particular could accidentally press
th e electrical seat adjustment buttons and
become trapped. #
While moving the seats, make sure that
hands or other body parts do not get
under the le ver assembly of the seat
adjustment sy stem. &
WARNING Risk of inju rydue tohead
re stra ints which are not ins talled or are
adjus ted incor rectly
If head restra ints are not ins talled or are
adjus ted incor rectly, the head restra ints can‐
not pr ovide pr otection as intended.
There is an increased risk of injury in the
head and neck area, e.g. in theeve nt of an
accident or when braking. #
Always drive with the head restra ints
ins talled. #
Before driving off, make sure forev ery
ve hicle occupant that the center of the
head restra int supports the back of the
head at about eye le vel. Do not inter
change the head restra ints of the
front and rear seats. Otherwise, you will not be
able toset the height and inclination of the head
re stra ints tothe cor rect position. Using
the head restra int fore -and-aft adjustment,
adjust the head restra int so that it is as close to
th e back of the head as possible. &
WARNING Risk of inju ryor death due to
incor rect seat position
The seat belt does not of ferth e intended le vel
of pr otection if you ha venot mo vedth e seat
backrest toan almost vertical position.
When braking or in theeve nt of an accident,
yo u could slide unde rneath the seat belt and
sus tain abdominal or neck injuries, forex am‐
ple. #
Adjust the seat properly before begin‐
ning your journe y. #
Always ensure that the seat backrest is
in an almost vertical position and that
th e shoulder section of your seat belt is
ro uted across the center of your shoul‐
der. *
NO
TEDama getothe seats when moving
th e seats back The seats may be damaged
byobjects when
moving the seats bac k. #
When moving the seats bac k,make sure
th at there are no objects in thefo ot we ll,
under or behind the seats. 1
Seat fore -and-aft position
2 Seat height
3 Seat ba ckrest inclination
% Depending on
the seat model, cer tain adjust‐
ment options may not be available. Seats and
stowage 65
#
Toset the seat fore -and-aft adjustment:
ra ise le ver1 and slide the seat into the
re qu ired position. #
Ensure that the seat is engaged. #
Toset the seat heigh t:ke ep on pressing or
pulling le ver2 until therequ ired seat height
has been reached. #
Toset the seat backrest inclination: rotate
handwheel 3forw ards and backwards until
th ere qu ired position has been reached. Ad
justing the front seats mechanically (with
Seat Comfort Package) &
WARNING Risk of becoming trapped if
th e seats are adjus tedby children
Children could become trapped if they adjust
th e seats, particularly when unattended. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Never lea vechildren unat tended in the
ve hicle. &
WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. Obser
vethe saf ety no tes on "Airbags" and "Chil‐
dren in theve hicle". &
WARNING Risk of accident due tothe
driver's seat not being engaged
If th e driver's seat is not engaged, it could
mo veunexpectedly while theve hicle is in
motion.
This could cause youto lose control of the
ve hicle. #
Always make sure that the driver's seat
is engaged before starting theve hicle. &
WARNING Risk of inju ryfrom adju sting
th eve hicle settings while theve hicle is in
motion
Yo u could lose control of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra int, the
st eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of becoming trapped if
th e seat height is adjus ted carelessly
If yo u adjust the seat height carelessly, you or
ot her vehicle occupants could be trapped and
th ereby injured.
Children in particular could accidentally press
th e electrical seat adjustment buttons and
become trapped. #
While moving the seats, make sure that
hands or other body parts do not get
under the le ver assembly of the seat
adjustment sy stem. &
WARNING Risk of inju rydue tohead
re stra ints which are not ins talled or are
adjus ted incor rectly
If head restra ints are not ins talled or are
adjus ted incor rectly, the head restra ints can‐
not pr ovide pr otection as intended.
There is an increased risk of injury in the
head and neck area, e.g. in theeve nt of an
accident or when braking. #
Always drive with the head restra ints
ins talled. #
Before driving off, make sure forev ery
ve hicle occupant that the center of the
head restra int supports the back of the
head at about eye le vel. Do not inter
change the head restra ints of the
front and rear seats. Otherwise, you will not be
able toset the height and inclination of the head
re stra ints tothe cor rect position. 66
Seats and stowage