
passenger airbag must alw
ays be disabled.
This is only the case if thePA SSENGER AIR
BA G OFF indicator lamp is lit continuously
(/ page 46).
R Ifth ePA SSENGER AIR BAG OFF indicator
lamp is off, the front passenger airbag is ena‐
bled. The front passenger airbag may deploy
during an accident.
Securing thech ild restra int sy stem with the
seat belt on the front passenger seat
When fitting a belt-secu redch ild restra int sys‐
te m on the front passenger seat, alw ays obser ve
th efo llowing:
O Obser
vethech ild restra int sy stem manufac‐
turer's ins tallation and operating instruc‐
tions.
O Fo
r a child restra int sy stem in the "Univer‐
sal" or "Semi-Universal" categor y,make
sure that the sy stem has been appr ovedfor
th eve hicle seat.
Obser vethe no tes under "Suitability of
seats for attaching belt-secu redch ild
re stra int sy stems" (/ page72). O
When
using a forw ard-facing child restra int
sy stem in category I: 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 rectl y.
O The backrest of
thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger seat.
O Fo
r cer tain child restra int sy stems in weight
category II or III, there may be restrictions
on the maximum size setting, e.g. due to
possible con tact wi th thero of.
O The
child restra int sy stem must not be ten‐
sioned between thero of and the seat cush‐
ion and/or be fitted facing the wrong direc‐
tion.
O The
child restra int sy stem must not be put
under stra in by the head restra ints. Adjust
th e head restra ints accordingly.
O Ne
ver place objects under or behind the
ch ild restra int sy stem, e.g. cushions. #
Set the front passenger seat as far back as
possible and mo vethe seat into the highest
position if possible. #
Adjust the seat cushion inclination so that
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. #
Fitthech ild restra int sy stem.
The entire base of thech ild restra int sy stem
must alw aysre st on the sitting sur face of the
front passenger seat. #
Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat belt
outlet of theve hicle tothe shoulder belt
guide on thech 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 front passenger seat
accordingly. 78
Occupant saf ety

Note
s onthe cor rect driver's seat position &
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r 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 ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. Ensure
thefo llowing when adjusting thesteering
wheel 1, seat belt 2and driver's seat 3:
R you are sitting as faraw ay from the driver's
airbag as possible, taking thefo llowing
points into consideration.
R you are sitting in an upright position
R your thighs are slight lysuppor tedby the seat
cushion R
your legs are not fully extended and you can
depress the pedals properly
R the back of your head is suppo rted at eye
le ve lby the cent reofthe head restra int
R you can hold thesteering wheel with your
arms slightly bent
R you can mo veyour legs freely
R you can see all the displa yson the instru‐
ment clus ter clea rly
R you ha vea good overview of the traf fic con‐
ditions
R your seat belt sits snug lyagainst your body
and passes across the cent reofyour shoul‐
der and across your hips in the pelvic area 11 0
Seats and stowing

&
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r 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 ints, 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 other vehicle occupants could be trapped
and thereby injured. Children in particular could acciden
tally
press the 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 fitted or are
adjus ted incor rectly
If head restra ints are not fitted or are adjus‐
te d incor rectl y,they cannot pr ovide pr otec‐
tion 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. #
Alw ays drive with the head restra ints
fi tted. #
Before driving off, ma kesure forev ery
ve hicle occupant that the cent reofthe
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 toadjust the height and angle of the head
re stra ints cor rectl y.
Ad just the head restra int fore -and-aft position so
th at it is as close as possible tothe back of your
head. &
WARNING Risk of inju ryor death due to
incor rect seat position
The seat belt does not of ferth e intended
le ve l of pr otection if you ha venot mo vedthe
seat backrest toan almost vertical position.
When braking or in theeve nt of an accident,
yo u could slide underneath the seat belt and
sus tain abdominal or neck injuries, forex am‐
ple. #
Adjust the seat proper lybefore begin‐
ning your journe y. #
Alw ays 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 cent reofyour shoul‐
der. 11 2
Seats and stowing

Ad
justing the front seat electrically 1
Seat ba ckrest inclination
2 Seat height
3 Seat cushion inclination
4 Seat fore -and-aft position #
Save the settings with the memory function
(/ page 124). Ad
justing the 4-w aylumbar support 1
Raise
2 Soften
3 Lower
4 Harden #
Using buttons 1to4 , adjust the conto ur
of the backrest individually tosuit your bac k. Ad
justing rear seats mechanically &
WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you may trap your‐
self or a vehicle occupant. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. &
WARNING Risk of accident if seat and
seat ba ckrest are not engaged
If th e seat and seat backrest are not engaged
th ey could fold forw ards, e.g. when braking
or in theev ent of an accident.
This poses thefo llowing risks in particular:
R A seat or seat backrest that is not
engaged can push theve hicle occupant
against the seat belt. The seat belt would
th en not be able toprov ide the intended
pr otection and could cause additional
injur y. 11 4
Seats and stowing

Ad
justing rear seat backrests mechanically &
WARNING Risk of inju rydue toseat
backrest folded forw ards
If th ere ar seat backrest is folded forw ards,
persons in theth ird row of seats could col‐
lide with parts of the seat adjustment mech‐
anism, in particular in theeve nt of an acci‐
dent, sudden braking or an ab rupt change of
direction. #
Ifth ere is a person in theth ird row of
seats, there ar seat in front of that per‐
son must be folded back into the driv‐
ing position before starting the journe y. #
People in theth ird row of seats must
not place their legs on a rear seat back‐
re st that has been folded forw ards. Alw
ays ensure that all vehicle occupants ha ve
th eir seat belts fastened cor rectly and are sitting
prope rly. Pa rticular attention must be paid to
ch ildren. If
yo u no lon gerre qu ire the seat backrest tobe
fo lded down for loading or forge tting in and out,
fo ld it back into place. &
WARNING Risk of becoming trapped if
th e seat is not engaged
The seat does not engage when folded for‐
wa rds. The seat can fold backwards unex‐
pectedl y,e.g. when accelerating, braking or
in theev ent of an abrupt change of direction
or an accident.
Pe ople in the seat's sweep can become trap‐
ped. #
If a seat is folded forw ards, alw aysfo ld
it back before driving off. #
Make sure that the seat is engaged. Re
quirements:
R The area into which the seat is folded is
clear. Yo
u can fold the seat backrests on the second
row of seats forw ards forth efo llowing situa‐
tions:
R For easier access tothe load compartment
R Vehicles with a third row of seats: forget ting
in or out
Yo u can mo vethe seat backrest todiffere nt
angles. #
Setting the seat backres t:hold the seat
backrest in place with your hand or bac k. #
Gent lypull one of there lease loops 1and
fo ld the seat backrest forw ards or back‐
wa rds. 11 6
Seats and stowing

Head
restra ints Ad
justing the front seat head restra ints
mechanically &
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r 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 ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of inju rydue tohead
re stra ints which are not fitted or are
adjus ted incor rectly
If head restra ints are not fitted or are adjus‐
te d incor rectl y,they cannot pr ovide pr otec‐
tion 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. #
Alw ays drive with the head restra ints
fi tted. #
Before driving off, ma kesure forev ery
ve hicle occupant that the cent reofthe
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 toadjust the height and angle of the head
re stra ints cor rectl y.
Ad just the head restra int fore -and-aft position so
th at it is as close as possible tothe back of your
head. #
Toraise: pullthe head restra int up. #
Tolowe r:press release knob 1inthe direc‐
tion of the ar row and push the head restra int
down. #
Tomo vethe driver's head restra int for‐
wa rds: press release knob 2and pull the
head restra int forw ards. 11 8
Seats and stowing

#
Toswitch off / reduce the le vel:press but‐
to n1 repeatedly until the desired ventila‐
tion le vel is set.
If all indicator lamps are off, the seat ventila‐
tion is switched off. Ste
ering wheel Ad
justing the steering wheel mechanically &
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r 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 ints, the st
eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of entrapment forch il‐
dren when adjusting thesteering wheel
Children could injure themselves if they
adjust thesteering wheel. #
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 tothe digital vehicle
ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. #
Push release le ver1 down as far as it will
go.
The steering column is unloc ked. #
Adjust height 2and di stance 3tothe
st eering wheel. #
Push release le ver1 up as far as it will go.
The steering column is loc ked. #
Check and make sure that thesteering col‐
umn is loc kedby moving thesteering wheel. 12 2
Seats and stowing

Through-loading
feature in there ar ben ch
seat Fo
lding there ar seat backrest forw ards &
WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you may trap your‐
self or a vehicle occupant. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. &
WARNING Risk of becoming trapped if
th e seat is not engaged
The seat does not engage when folded for‐
wa rds. The seat can fold backwards unex‐
pectedl y,e.g. when accelerating, braking or
in theev ent of an abrupt change of direction
or an accident.
Pe ople in the seat's sweep can become trap‐
ped. #
If a seat is folded forw ards, alw aysfo ld
it back before driving off. #
Make sure that the seat is engaged. Alw
ays ensure that all vehicle occupants ha ve
th eir seat belts fastened cor rectly and are sitting
prope rly. Pa rticular attention must be paid to
ch ildren.
If yo u no lon gerre qu ire thefo lded-d own seat
ba ckrest as a loading area, fold the backrest
back into place.
Re quirements:
R The area into which the seat is folded is
clear.
R The area under there ar ben chseat is clear.
R The armrest on the second row of seats is
fo lded back and the cup holders are em pty. #
Trap the seat belt stra p on the seat belt 2
in the seat belt stra p holder 1.
When the left-hand seat backrest is folded for‐
wa rds, the cent reseat backrest will also be fol‐
ded forw ards. Seats and
stowing 12 9