Page 81 of 498

Automatic lo weringfeature
Ve hicles with apanoramic sliding sunroof: If
th es liding sunroof is raised at ther ear ,the slid‐
ing sunroof is automaticall ylowe reds lightl yat
higher speeds. Atlows peeds, it is raised again
automaticall y.
&
WARNING Risk of entrapment byauto‐
matic lo wering of thes liding sunroof
At high speeds ther aised sliding sunroof
automaticall ylow erss lightl yatt herear.
This coul dtrapy ou or other persons.
#Mak esuret hat nobody reaches int othe
sweep of thes liding sunroof whils tthe
ve hicle is in motion.
#If somebody becomes trapped, briefly
push thes liding sunroof button for‐
wa rdsorb ackwards.
The sliding sunroof lifts during opening.
Problems with thes liding sunroof
%
The term "slidings unroof" also refers to the
panoramic sliding sunroof.
Problem Possible causes/consequences and MSolutions
The sliding sunroof cann otbe closed
and youc anno tsee thec ause. &
WARNING Risk of becoming trapped or fata linjur ybyc losing thes liding sunroof again
If yo uc lose thes liding sunroof again immediatel yafter it has been bloc kedorr eset, thes liding sunroof
closes wit hincreased forc e.
Pa rtsoft he body could become trapped in thec losing area in thep rocess.
#Mak esuret hat no parts of theb ody ar einthe closing area.#Release theb utton immediatel yifsomebody becomes trapped.
or
Openin gand closing 79
Page 82 of 498

ProblemPossible causes/consequences and MSolutions
#Presstheb utton in an ydirection during thea utomatic closing process.
The closing process is stopped.
If th es liding sunroof is obstructed during closing and reopens again slightly:
#Immediatel yafter automati creve rsing, pull and hold the3 button down again tothep ressur epoint
until thes liding sunroof is closed.
The sliding sunroof is closed wit hincreased forc e.
If th es liding sunroof is obstructed again and reopens again slightly:
#Re peat thep reviouss tep.
The sliding sunroof is closed again wit hincreased forc e.
Ve hicles without apanoramic slid‐
ing sunroof: The sliding sunroof does
no to perat esmoo thly.
#Pull the3 button up repeatedl ytothe pressur epoint until thes liding sunroof is full yopen.
#Press the3 button fora nother second.
#Close thes liding sunroof.
Ve hicles with apanoramic sliding
sunroof: The sliding sunroof or the
ro ller sunblin ddoes no topera te
smoo thly.
#Pull and hold the3 button little bylittle until thes liding sunroof is full yclosed.
#Pull and hold the3 button little bylittle until ther oller sunbli ndis full yclosed.
#Use automatic operation tofully open and then close thes liding sunroof.
80
Openin gand closing
Page 83 of 498

Anti-theftprotection
Fu nction of thei mmobilizer
The immobilizer pr events your vehicle from being
st ar tedw ithout thec orrect SmartK ey.
The immobilizer is automaticall yactivated when
th ei gnition is switched of fand deactivated when
th ei gnition is switched on.
When leaving thev ehicle, alw ayst aket he Smart‐
Ke yw ithy ou and loc kthe vehicle. An yone can
st ar tt he engine if avalid SmartK eyhas been left
inside thev ehicle.
% Inthee vent thee ngine cannot bestar ted
(y et thev ehicle ’sstar terb atter yisc harged),
th es ystemisn otoperational. Contact an
authorized Mercedes-Benz Center or call
1-800-FO R-MERCedes (in theU SA)or
1-800-387-0 100( in Canada).
ATA (anti-thef talarm system)
Fu nction of theA TAsystem
If th eA TAsystem is armed, avisual and audible
alar mist riggered in thef ollowing situations:
RWhen adoor is opened
RWhen thet runk lid is opened
RWhen theh ood is opened
The ATAs ystem is armed automaticall yafter
appr oximatel y10seconds:
RAfterl ocking thev ehicle wit hthe SmartK ey.
RAf terl ocking thev ehicle using KEYLESS-GO.
Indicator lamp 1flashes when theA TAsystem
is activated.
The ATAs ystem is automaticall ydeactivated:
RAfteru nlocking thev ehicle wit hthe Smart‐
Ke y
RAfterp ressing thes tart/s topb utton wit hthe
Sma rtKe yint hestow agec ompartment
(
→pag e136)
Opening and closing 81
Page 84 of 498
RAfteru nlocking thev ehicle using KEYLESS-
GO.
% When them brace service (
→page287)is
activ eand thea larms tays on form oret han
30 seconds, amessag eisautomaticall ysent
to theC ustomer Assis tance Center.
Deacti vatin gthe ATA
#Press the%, &orp button on the
SmartK ey.
or
#Press thes tart/s topb utton wit hthe Smart‐
Ke yint he stow agec ompartment
(
→pag e136)
Deactivating thea larm using KEYLESS-GO:
#Grasp theo utside door handle wit hthe
Sma rtKe yo utside thev ehicle.
82
Opening and closing
Page 85 of 498

Notesont he cor rect driver' sseat position
&
WARNING Risk of injury from adjusting
th ev ehicle settings while thev ehicle is in
motion
Yo uc ouldlose cont roloft hevehicle in the
fo llowing situations:
Rifyo ua djus tthe driver's seat, theh ead
re stra int ,the steering wheel or them irro r
while thev ehicle is in motion
Rifyo uf asteny our seat belt whil ethe vehi‐
cle is in motion
#Befor estarti ngthee ngine: adjus tthe
driver's seat, theh ead restra int ,the
st eering wheel or them irro ra nd fasten
yo ur seat belt.
Ensur ethe following when adjustin gthe steering
wheel 1,seat belt 2and driver's seat 3:
Ryoua reas fara wa yfromt he driver's air bag
as possible
Ryo ua resittin ginan ormalupright position
Ryour thighs ar eslightly suppor tedbyt he seat
cushion
Ryo ur legs ar enotentirel ystret ch ed and you
can dep ress thep edals properly
Rtheb ackofy our head is suppor tedate ye
le ve lbyt he center of theh ead restra int
Ryo uc an hold thes teering wheel wit hyour
arms slig htlybent
Ryouc an mo veyour legs freely
Ryouc an see all thed ispla yson thei nstru‐
ment clus terc learl y
Ryouh ave agood overviewoft he traf ficc on‐
ditions
Rth es eat belt is pulled snug lyagains tthe
body and is routed across thec enter of your
shoulder and across your hips in thep elvic
area
Seats and stowing 83
Page 86 of 498

Seats
Adjustin gthe fron tseatm echanicall yand
electricall y(withou tSeatC om fort Pa ckage)
&
WARNING Risk of becoming trapped if
th es eats ar eadjus tedbyc hildren
Childre ncould becom etrapped if they adjust
th es eats, particularly when unattended.
#When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle.
#Ne verlea ve children unatte ndedint he
ve hicle.
The seats can be adjus tedw hen thei gnition is
switched off.
& WARNING Risk of becoming trapped
whe nadjusting thes eats
When youa djus tas eat,y ou or other vehicle
occupants could become trapped, e.g. on the
seat guide rail.
#Mak esurew hen adjustin gaseatthat
no oneh as anybody parts in thes weep
of thes eat.
Obser vethes afet yn otes on "Air bags" and "Chil‐
dren in thev ehicle".
&
WARNING Risk of accident duetot he
driver's seat no tbeing engaged
If th ed rive r's seat is no tengaged, it could
mo veunexpectedl ywhile thev ehicle is in
motion.
This could cause youtol ose control of the
ve hicle.
#Alw aysm akes uret hat thed rive r's seat
is engaged befor estartin gt he vehicle.
&
WARNING Risk of injury from adjusting
th ev ehicle settings while thev ehicle is in
motion
Yo uc ouldlose cont roloft hevehicle in the
fo llowing situations:
Rifyo ua djus tthe driver's seat, theh ead
re stra int ,the steering wheel or them irro r
while thev ehicle is in motion
Rifyo uf asteny our seat belt whil ethe vehi‐
cle is in motion
#Befor estarti ngthee ngine: adjus tthe
driver's seat, theh ead restra int ,the
st eering wheel or them irro ra nd fasten
yo ur seat belt.
&
WARNING Risk of becoming trapped if
th es eat height is adjus tedc arelessly
If yo ua djus tthe seat height carelessly ,you
or other vehicle occupants could be trapped
and thereb yinjured.
84
Seats and stowing
Page 87 of 498

Childreninparticular could acc identally
press thee lectrical seat adjustmen tbuttons
and become trapped.
#While moving thes eats, mak esuret hat
hands or other body parts do no tget
under thel eve rassembly of thes eat
adjustmen tsystem.
&
WARNING Risk of injury duetohead
re stra int sw hicha renotins talled or are
adjus tedi nco rrectly
If head restra int sa renotins talled or are
adjus tedi ncor rectly ,the head restra int sc an‐
no tp rovide pr otection as intended.
Ther eisani ncreased risk of injur yinthe
head and nec karea, e.g. in thee vent of an
accident or when braking.
#Alw aysd rive wit hthe head restra ints
ins talled.
#Befor edrivingo ff,m akes uref or every
ve hicle occupant that thec enter of the
head restra int supports theb ackoft he
head at about eyel eve l.
Do no tinter chang ethe head restra int soft he
front and rear seats. Otherwise, youc annot
adjus tthe height and angle of theh ead
re stra int sc orrectl y.
Ad jus tthe head restra int fore -and-af tposition so
th at it is as close as possible totheb ackofy our
head.
& WARNING Risk of injury or deathdueto
incor rect seatp osition
The seatb eltd oesn otoffert he intended
le ve lofp rotection if youh ave notm ove dthe
seat backres ttoanalmostvertical position.
When braking or in thee vent of an accident,
yo uc ould slide underneat hthe seat belt and
sus tain abdominal or nec kinjuries, fore xam‐
ple.
#Ad jus tthe seat proper lybefor ebegin‐
ning your journe y.
#Alwayse nsur ethat thes eat backres tis
in an almos tvertical position and that
th es houlder section of your seat belt is
ro uted across thec enter of your shoul‐
der.
* NO
TEDama getothes eats when moving
th es eats back
The seats ma ybedamaged byobject swhen
moving thes eats bac k.
#When moving thes eats bac k,make
sur ethat ther ea reno objects in the
fo ot we ll or under or behindt he seats.
Seats andstowing 85
Page 88 of 498
1Seatbackres tinclination
2Seat height
3Seat fore -and-af tposition
#To adjus tthe sea tfore-and-a ftposition:
lif tl eve r3 and slidet he seat int othe
desired position.
#Mak esuret hat thes eat is engaged.
Adjustin gthe fron tseatm anuall yand elec‐
tricall y(with Seat Comfor tPacka ge)
1Seat backres tinclination
2Seat height
3Seat cushion inclination
4Seat fore -and-af tadjustment
5Sea tcushion length
#To adjus tthe sea tfore-and-a ftposition:
lif tl eve r4 and slidet he seat int othe
desired position.
#Mak esuret hat thes eat is engaged.
#To adjus tthe sea tcushion length: liftl eve r
5 and slide thef ront section of thes eat
cushion forw ards or backwards.
86
Seatsand stow ing