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#
If somebody becomes trapped, immedi‐
ately pull back the sliding sunroof
switch.
The sliding sunroof lifts during opening. Problems with
the sliding sunroof %
The term "sliding sun roof" also refers to the
panoramic sliding sunroof. Problem
Possible causes/consequences and M MSolutions
The sliding sunroof cann otbe closed
and you cannot see the cause. &
WARNING Risk of entrapment byclosing the sliding sunroof again
If yo u close the sliding sunroof again immediately af ter it has been bloc ked or reset, the sliding sunroof
closes with increased or maximum forc e.
The reve rsing feature is then not active. Parts of the body could be trapped in the closing area in the
process. This poses an increased risk of injury or evenfa ta l injur y. #
Make sure that no parts of the body are in the closing area. #
Release the switch immediately if somebody becomes trapped.
or #
Press the switch in any direction during the automatic closing process.
The closing process is stopped. If
th e sliding sunroof is obstructed during closing and reopens again slightly: #
Immediately af ter auto matic reve rsing, pull and hold the3 button down again tothe point of resist‐
ance until the sliding sunroof is closed.
The sliding sunroof is closed with increased forc e. 86
Opening and closing
Page 90 of 557

Problem
Possible causes/consequences and M
MSolutions
If th e sliding sunroof is obstructed again and reopens again slightly: #
Repeat the pr evious step.
The sliding sunroof is closed again with increased forc e.
Ve hicles without a panoramic slid‐
ing sunroof: the sliding sunroof does
not operate smoo thly. #
Raise the sliding sunroof fully at there ar. #
Press the3 button for ano ther second. #
Use automatic operation tofully raise and then close the sliding sunroof.
Ve hicles with a panoramic sliding
sunroof :th e sliding sunroof or the
ro ller sunblind does not opera te
smoo thly. #
Pull the3 button down repeatedly tothe point of resis tance until the sliding sunroof is fully closed. #
Pull the3 button for ano ther second. #
Pull and hold the3 button down until thero ller sunblind is comple tely closed. #
Pull the3 button for ano ther second. #
Use automatic operation tofully open and then close the sliding sunroof. Anti-theft pr
otection Immobiliser
The immobiliser pr
events your vehicle from
being star ted without the cor rect key. The immobiliser is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on. ATA
(Anti-Theft Alarm sy stem) Fu
nction of theATA system (anti-theft ala rm
sy stem)
If th eATA system is primed, a visual and audible
alarm is triggered in thefo llowing situations:
R A door is opened. Opening and closing
87
Page 91 of 557

R
The boot lid is opened.
R The bonnet is opened.
R Interior pr otection is triggered. (→ page 89)
R Tow- aw ay protection is triggered.
(→ page 88)
The ATA system is primed automatically af ter
appr oximately 10seconds:
R After locking theve hicle with thekey.
R After locking theve hicle using KEYLESS-GO. When
theATA system is primed, indicator lamp
1 flashes.
The ATA sy stem is automatically deactivated:
R After unlocking theve hicle with thekey.
R After pressing thest art/ stop button with the
ke y inside theve hicle.
R After unlocking theve hicle using KEYLESS-
GO. %
When the Mercedes‑Benz emer gency call
sy stem is active and the alarm stay s on for
more than 30 seconds, a message is auto‐
matically sent tothe Cus tomer Assis tance
Centre (→ page 320).
Deactivating theATA (anti-theft ala rmsys‐
te m) ala rm #
Press the%, &orp button on the
key.
or #
Press thest art/ stop button (the SmartK eyis
inside theve hicle).
St opping the ala rmusing KEYLESS-GO #
Grasp the outside door handle (with thekey
outside theve hicle). To
w- aw ay protection An audible and visual alarm is triggered if
your
ve hicle's angle of inclination is altered while tow-
aw ay protection is primed. 88
Opening and closing
Page 92 of 557

To
w- aw ay protection is automatically primed
af te r about 60 seconds:
R After locking theve hicle with thekey.
R After locking theve hicle using KEYLESS-GO.
To w- aw ay protection is only primed when thefo l‐
lowing components are closed:
R Doo rs
R Boot lid
To w- aw ay protection is automatically deactiva‐
te d:
R After pressing the% orp button on
th ekey
R After pressing thest art/ stop button with the
ke y inside theve hicle.
R After unlocking theve hicle using KEYLESS-
GO.
R When using HANDS-FREE ACCESS. Priming/deactivating
tow- aw ay protection Multimedia sy
stem:
, Vehicle .
î Vehicle settings .
Tow-
away protection #
Activate Oor deacti vate ª the function. Interior pr
otection When interior pr
otection is primed, a visual and
audible alarm is triggered if mo vement is de tec‐
te d in theve hicle interior.
Interior pr otection is primed automatically af ter
appr oximately 10seconds:
R After locking theve hicle with thekey.
R After locking theve hicle using KEYLESS-GO.
Interior pr otection is only primed when thefo l‐
lowing components are closed:
R Doo rs
R Boot lid Interior pr
otection is automatically deactivated:
R After pressing the% orp button on
th ekey
R After pressing thest art/ stop button with the
ke y inside theve hicle.
R After unlocking theve hicle using KEYLESS-
GO.
R When using HANDS-FREE ACCESS.
The following situations can lead toafa lse
alarm:
R By mo veable objects such as masc ots in the
ve hicle interior.
R When the side window is open.
R When the sliding sunroof is open.
R When the panoramic sliding sunroof is open. Priming/deactivating interior pr
otection Multimedia sy
stem:
, Vehicle .
î Vehicle settings .
Inte-
rior motion sensor #
Activate Oor deacti vate ª the function. Opening and closing
89
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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. Obser
vethefo llowing when adjusting steering
wheel 1, seat belt 2and driver's seat 3:
R you are as faraw ay from the driver's airbag
as possible
R you are sitting in a no rmal upright position
R your thighs are slight lysuppor tedby the seat
cushion R
your legs are not entirely stre tched and you
can dep ress 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 ysinthe instrument
clus ter clea rly
R you should ha vea good overview of traf fic
conditions
R the seat belt is pulled snugly against the
body and must be routed across the cent re
of your shoulder and across your hips in the
pelvic area 90
Seats and stowing
Page 94 of 557

Seats
Ad
justing the front seat manually and elec‐
trically (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 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. #
Never lea vechildren unat tended in the
ve hicle. The seats can be adjus
ted when the ignition is
switched off. &
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. #
Make sure when adjusting a seat 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. #
Alw ays make sure that the driver's seat
is engaged before starting theve hicle. &
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. Seats and
stowing 91
Page 95 of 557

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 cannot
adjust 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 rydue toan incor‐
re ct 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 abdomen or neck injuries, forex am‐
ple. This poses an inc reased risk of injury or
ev en fata l injur y. #
Adjust the seat cor rectly before starting
th e 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. *
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 that there are no objects in the
fo ot we ll or under or behind the seats. 92
Seats and stowing
Page 96 of 557
1
Seat ba ckrest inclination
2 Seat height
3 Seat fore -and-aft position #
Toadjust the seat fore -and-aft position:
lift le ver3 and slide the seat into the
desired position. #
Make sure that the seat is engaged. Ad
justing the front seat manually and elec‐
trically (with Seat Comfort Package) 1
Seat backrest inclination
2 Seat height
3 Seat cushion inclination
4 Seat fore -and-aft position
5 Seat cushion length #
Toadjust the seat fore -and-aft position:
lift le ver4 and slide the seat forw ards or
backwards. #
Make sure that the seat is engaged. #
Toadjust the seat cushion length: lift lever
5 and slide the front section of the seat
cushion forw ards or backwards. Seats and
stowing 93