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Adjusting the4-wa ylumbar support
:Raises th ebackrest contour
;Soften sthe backrest contour
=Lowers th ebackrest contour
?Harden sthe backrest contour
You can adjust th econtou roftheseat backrest s
individually to provid eoptimum support for your
back.
Switchin gthe seath eating on/off
Switchin gon/off
GWARNIN G
Repeatedly switching on th eseat heating can
caus ethe seat cushion and backrest pads to
become ver yhot.T he healt hofpersonswith
limite dtem perature sensitivit yoralimited
abilit ytor eac ttoh igh temperatures may be
affecte dortheym ay eve nsuffer burn-like
injuries. There is ariskofi njury.
Therefore ,donotswitch th eseat heating on
repeatedly.
!When th eseat heating is switched on ,the
seat surfac ecan be damaged as aresult of
objects bein gplaced on th eseats; for exam-
ple, seat cushions, child seat sand protective
cover snotapprove dbyMercedes-Benz .
When th eseat heating is switched on ,ens ure
that there are no objects on th eseats.
Driver's and front-passenger seat
The three red indicator lamp sinthebutto nindi-
cat ethe heating level you hav eselected.
The system automatically switches down from
level 3to level 2after approximately eigh t
minutes.
The system automatically switches down from
level 2to level 1after approximately te n
minutes.
The system automatically switches off approx -
imately 20 minute safter it is set to level 1.
XMakesuret ha tthe SmartKey is in position 1
or 2 in th eignition lock.
XTo switch on: press button: repeatedly
until th edesired heating level is set .
XTo switch off:press butto n: repeatedly
until all th eindicator lamp sgoout.
Problemsw ith theseath eating
The seat heating has switched off prematurel y
or canno tbeswitched on .The vehicle's electri-
cal system voltag eistoolow because to omany
electrical consumer sare switched on .
XSwitchoff electrical consumer sthaty ou do
no tn eed, suc hastherear window defroste r
or interior lighting .
XOnce thebattery is sufficientl ycharged,
switch on th eseat heating again .
AIRSCARF
Setting hea dlevel heating (AIRSCARF)
GWARNIN G
When AIRSCARF is switched on ,veryh ot air
can flo wfromt hevents in th ehead restraints .
Seats87
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This could result in burns in the immediate
vicinityofthe air vents. There is arisk of injury.
Reduce the heater output before it becomes
too hot.
The AIRSCARF function warms the head and
neck area of vehicle occupantsw ith warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button indi-
cate the heating level you have selected.
XEnsure that the SmartKey is in position 2in
the ignition lock.
XTo switch on: press button:.
Three red indicator lamps in the button light
up. The blower start supafterapreheating
phase of seven seconds.
XPress button :repeatedly until the desired
heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iThe blower continues runnin gfor seven sec-
onds to cool down the heating elements.
iIf the battery voltage is too low, AIRSCARF
may switch off.
Problems with AIRSCARF
AIRSCARF has switched off prematurely or will
not switch on. The vehicle's electrical system
voltage is too low because too many electrical
consumersa re switched on.
XSwitch off electrical consumer sthat you do
not need, such as the rear window defroster
or interior lighting.
XSwitch on AIRSCARF again.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steerin gwheel or mirrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steerin gwheel. There is arisk of
injury.
When leaving the vehicle, alwayst ake the
SmartKey with you and lock the vehicle. This
also applies to mobile phones if the "Digital
Car Key in smartphone" function is activated
via the Mercedes me connect web app. Never leave children unsupervised in the vehicle.
The electrically adjustable steerin gwheel can
still be adjusted when there is no SmartKey in
the ignition lock.
Adjusting the steering wheel man-
ually
GWARNING
If the steerin gwheel is unlocked while the
vehicle is in motion,itc ould change position
unexpectedly. This could cause you to lose
control of the vehicle. There is arisk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion.
88Steering wheel
Seats, steering wheel and mirrors
Page 91 of 298

:Releaselever
;Adjusts th esteering whee lheight
=Adjusts th esteering whee lposition (fore-
and-af tadjustment)
XPush release lever :down completely in th e
direction of th earrow.
The steering column is unlocked.
XAdjus tthe steering whee ltot he desired posi-
tion .
XPush release lever :up completely.
The steering column is locked.
XChec kifthesteering column is locked. When
doin gso, tr ytop ush th esteering whee lupor
down or tr ytom oveitint hefore-and-af t
direction .
Adjusting th esteering wheel electri-
cally
:Adjusts th esteering whee lheight
;Adjusts th esteering whee lposition (fore-
and-af tadjustment)
iFurther relate dsubjects :
REASY-ENTRY/EXIT feature (Ypage 89)
RStoring setting s(Ypage 93)
EASY-ENTRY/EXIT feature
Important safety notes
GWARNIN G
If you driv eoff while th eEASY-ENTRY/EXIT
feature is making adjustments ,you could lose
control of th evehicle. There is ariskofa n
accident.
Always wait until th eadjustmen tprocess is
complete before driving off .
GWARNING
When th eEASY-ENTRY/EXIT feature adjust s
th es teering wheel, you and other vehicl e
occupant s–particularly children –could
become trapped .There is ariskofi njury.
Whil ethe EASY-ENTRY/EXIT feature is mak -
ing adjustments ,makes uret hatnoo nehas
any body part sintheswee poft hesteering
wheel.
If somebod ybecome strapped :
Rpress on eofthememory function position
buttons ,or
Rmov ethe switch for steering whee ladjust -
men tint heopposit edirection to that in
whic hthe steering whee lismoving.
The adjustmen tprocess is stopped.
GWARNIN G
When th eEASY-ENTRY/EXIT feature adjust s
th es teering whee land th edriver' sseat ,you
and other vehicl eoccupant s–particularly
children –could become trapped .There is a
ris kofi njury.
Whil ethe EASY-ENTRY/EXIT feature is mak -
ing adjustments ,makes uret hatnoo nehas
any body part sintheswee poft heseat and
th es teering wheel.
Steering wheel89
Seats ,steering wheel and mirrors
Z
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If somebodybecomes trapped:
Rpress one of the memory function position
buttons, or
Rpress one of the memory function memory
buttons, or
Rmove the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you use openings in the bodywork or
detachable parts as steps, you could:
Rslip and/or fall
Rdamage the vehicle and cause yourself to
fall.
There is arisk of injury.
Alway suse secure climbing aids, e.g. asuita-
ble ladder.
The EASY-ENTRY/EXIT feature makes getting in
and out of you rvehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 174).
Position of the steering whee lwhen the
EASY-ENTRY/EXIT feature is active
The steering wheel swings up when you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with KEYLESS-GO in
position 1
Ropen the driver's door and the SmartKey is in
position uor1
iThe steering wheel moves upwards only if it
has not already reached the uppers teering
limiter.
Position of the steering whee lfor driv-
ing
The steering wheel is moved to the last selected
positionw hen:
Rthe driver's door is closed
Ryou insert the SmartKey into the ignition lock or
Ryou press the Start/Stop button once on vehi-
cles with KEYLESS-GO
When you close the driver's door with the igni-
tion switched on, the steering wheel is also
automatically moved to the previously set posi-
tion.
The last positionoft he steering column is stored
when you switch off the ignition or when you
store the setting with the memory function
(
Ypage 93).
Crash-responsive EASY-EXIT feature
If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move upwards when the driver's door is opened.
This occurs irrespective of the positionoft he
SmartKey in the ignition lock. This makes it eas- ier to exit the vehicle and rescue the occupants.
The crash-responsive EASY-EXIT feature is only
operational if the EASY-EXIT/ENTRY feature is
activated in the on-board computer
(
Ypage 174).
Mirrors
Rear-view mirror
XAnti-glare mode: flick anti-glare lever :for-
ward sorb ack.
90Mirrors
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Exteriormirrors
Adjusting th eexterio rmirrors
GWARNING
You coul dlose control of your vehicle if you do
th ef ollowingw hile driving:
Radjust thedriver'ss eat,head restraint,
steering wheel or mirrors
Rfasten th eseat belt
Thereisar isk of an accident.
Adjust th edriver'ss eat,head restraint ,steer-
ing wheel and mirror and fasten your seat belt before starting th eengine.
GWARNING
The exteriorm irror on thefront-pa ssenger
side reduces th esizeoft heimage .Visible
object sare actually closer than they appear.
This mean sthaty ou coul dmisjudge th edis-
tance from road userst ravelin gbehind, e.g.
when changing lane .Thereisar isk of an acci-
dent.
For this reason,a lways makesure of the
actual distanc efromt heroad userst raveling
behindbyg lancingovery our shoulder.
XMakes ure that th eSma rtKey is in position 1
or 2 in th eignition lock.
XPress button :for th eleft exteriorm irror or
button ;for th erigh texteriorm irror.
The indicator lamp in th ecorrespondingb ut-
to nl ightsupinr ed.
The indicator lamp goes out again after some time. You can adjust th eselecte dexterior mirror usingb
utton=as longast heindicator
lamp is lit.
XPress button =up, down,tot herigh tort o
th el eft.
The exteriorm irror must be set to aposition
that provide syou with agood overview of
traffic conditions.
The convex exteriorm irrorsprovide alarge rfield
of vision.
The exteriorm irrorsare automaticall yheated
after starting th evehicle if th erear window
defroster is switched on and th eoutside tem-
perature is low. Mirror heating lastsupto1 0
minutes.
iYou can also heat up th eexteriorm irrors
manually by switching on th erear window
defroster.
Foldin gthe exterio rmirror sinoro ut
electrically
XMakes ure that th eSma rtKey is in position 1
or 2 in th eignition lock.
XBriefly pres sbutton :.
Bot hexteriorm irrorsfold in or out.
iMakes ure that th eexteriorm irrorsare
always folded out fully while driving .They
coul dotherwise vibrate.
Foldin gthe exterio rmirror sinoro ut
automatically
If th e"Fol dinm irrorswhen locking" function is
activated in th eon-board computer
(
Ypage 174):
Rth ee xteriorm irrorsfold in automaticall yas
soon as you lockt hevehicle from th eoutside.
Rthee xteriorm irrorsfold out again automati-
cally as soon as you unlock th evehicle and
Mirrors91
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thenopent he driver's or front-passenger
door.
iThe exterio rmirrors do not fol doutif they
have been folde dinmanually.
Exterior mirro rpushed ou tofposition
If an exterio rmirrorh asbeen pushe doutof
position, procee dasfollows:
XVehicle swithout electricall yfolding exte-
rio rm irrors: movethe exterio rmirrori nto
the correct positio nmanually.
XVehicle swithe lect ricall yfolding exterior
mirrors: press and hol dmirror-folding button
unti lyou hear the mirrorc lick into place
(
Ypage 91).
The mirrorh ousing is engaged agai nand you
can adjus tthe exterio rmirrors as usual
(
Ypage 91).
Automati canti-glare mirrors
GWARNING
Electrolyte maye scap eift he glas sinana uto-
matic anti-glar emirror breaks. Th eelectrolyte
is harmfula nd causesirritation. It must not
come into contact with your skin, eyes ,res-
piratory organs or clothing or be swallowed.
There is ariskofi njury.
If yo ucome into contact with the electrolyte,
observe the following:
RRinse off the electrolyte fromy ours kin
immediatel ywithw ater.
RImmediately rinse the electrolyte ou tof
your eyes thoroughl ywithc lean water.
RIf the electrolyte is swallowed, immediately
rinse your mouth ou tthoroughly. Do not
induce vomiting.
RIf electrolyte come sinto contact with your
skinorh airoriss wallowed ,see km edical
attentio nimm ediately.
RImmediately change ou tofclothing which
hasc ome into contact with electrolyte.
RIf an allergi creactio noccurs, seek medical
attentio nimm ediately. The rear-view mirrora
nd the exteriormirroro n
the driver's side automaticall ygointo anti-glare
mod eift he following conditions ar emet simul-
taneously:
Rthe ignition is switched on and
Rincident light fromh eadlamps strikes the sen-
sor in the rear-view mirror
The mirrors do not go into anti-glar emodei
f
re
vers egearise ngaged or if the interio rlighting
is switched on.
Parking position fort he exterior mir-
ror on the front-passenge rside
Settin gand storin gthe parking position
Usin grevers egear
Youc an stor ethe parking positio nofthe front-
passenger-side exterio rmirroru sing memory
button M?.T he reverse gea rmustn ot be
engaged durin gthe process.
XMake sure thatt he vehicleisstationar yand
thatt he SmartKeyisinp osition 2in the
ignition lock.
XPress button ;for the exterio rmirror ont he
front-passenge rside.
XEngage revers egear.
The exterio rmirroront he front-passenger
side moves to the presetp arking position.
XUse button =to adjus tthe exterio rmirrort o
ap osit iont hata llowsyou to seet he rear
whee land the curb.
Th ep arking positio niss tored.
iIf yo ushift the transmission to anotherp osi-
tion, the exterio rmirroront he front-
passenge rsider eturns to the drivin gposit ion.
92Mirrors
Seats, steering wheel andmirrors
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Using the memory button
You can set the front-passenger side exterior
mirror such that you can see the rear wheel on
that side as soon as you engage reverse gear.
This setting can be stored using memorybutton
M ?.
XEnsure that the SmartKey is in position 2in
the ignition lock.
XWith the exterior mirror on the front-
passenger side activated, use button =to
adjust the exterior mirror.Int he exterior mir-
ror, the rear wheel and the curb should be
visible.
XPress memoryb uttonM? and one of the
arrows on button =within three seconds.
The parkin gposition is stored if the exterior
mirror does not move.
XIf the mirror moves out of position ,repeat the
steps.
Calling up astored parking position set-
ting
XTurn the SmartKey to position 2in the igni-
tion lock.
XSelec tthe front-passenger-side exterior mir-
ror using button ;.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parkin gposition.
The exterior mirror on the front-passenger side
moves back to its original position:
Ras soon as you exceed aspeed of 9mph
(15 km/h)
Rif you press button :for the exterior mirror
on the driver'ss ide
Memoryfunction
Storing settings
GWARNING
If you use the memoryf unction on the driver's
side while driving, you could lose contro lof
the vehicle as aresult of the adjustments
being made. There is arisk of an accident.
Only use the memoryf unction on the driver's
side when the vehicle is stationary.
GWARNING
When the memoryf unction adjuststhe seat or
steering wheel, you and other vehicle occu-
pant s–p articularly children –could become
trapped. There is arisk of injury.
While the memoryf unction is makingadjust-
ments, make sure that no one has any body
parts in the sweep of the seat or steering
wheel. If somebody becomes trapped, imme-
diately release the memoryf unction position
button. The adjustment proces sisstopped.
GWARNING
Children could become trapped if they acti-
vate the memoryf unction,particularly when
unattended. There is arisk of injury.
When leaving the vehicle, always tak ethe
SmartKey with you and lock the vehicle. This
also applies to mobile phones if the "Digital
Car Key in smartphone" function is activated
Memor yfunction93
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Z
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via the Mercedesmeconnect web app.Never
leave children unsupervisedint he vehicle.
The memory function can be activated at any
time, e.g. even when the SmartKey is not in the ignitio nlock.
With the memory function, you can store up to
three different settings, e.g. for three different
people.
The following settings are stored as asingle
memory preset:
Rposition of the seat, backrest and head
restraint
Rdriver'ss ide:steering wheelp osition
Rdriver'sside:position of the exterior mirrors
on the driver'sa nd front-passenge rsides
XAdjust the seat electrically (Ypag e86).
XOn the driver'ss ide,adjust the steering wheel
(Ypag e89) and the exterior mirrors
(Ypag e91).
XPress memory button Mand one of the stor-
age position buttons 1,2or 3withi nthree
seconds.
The settings are stored in the selected preset
position. Atone sounds when the settings
have been completed.
Calling up astored setting
XPress and hold the relevant storage position
button 1,2or 3until the seat, steering wheel
and exterior mirrors are in the stored position.
iThe setting procedure is interrupted as soon
as you release the storage position button.
94Memory function
Seats, steering wheel and mirrors