Problems with the SmartKey
ProblemPossible causes/consequences andMSolutions
You cannot lock or
unlock the vehicle using
the SmartKey.The SmartKey battery is discharged or nearly discharged.
XPoint the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or lock the
vehicle again.
If this does not work:
XCheck the SmartKey battery (Ypage 62) and replace it if necessary
(Ypage 62).
XUnlock (Ypage 66) or lock (Ypage 66) the vehicle using the
mechanical key.
The SmartKey is faulty.
XLock or unlock the vehicle using the mechanical key (Ypage 66).
XHave the SmartKey checked at a qualified specialist workshop.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
The engine cannot be
started using the Smart-
Key.The SmartKey has been in position 0(Ypage 112) for a considerable
time.
XRemove the SmartKey and reinsert it into the ignition lock.
XStart the engine.
The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to turn the SmartKey again.
If this does not work:
XCheck the battery and charge it if necessary (Ypage 252).
or
XJump-start the vehicle (Ypage 254).
or
XConsult a qualified specialist workshop.
SmartKey63
Opening and closing
Z
Adjusting the luxury head restraints
XTo adjust thesid ebolsters of th ehea d
restraint: push or pull right and/o rleft-han d
side bolste r: intoth edesired position .
XTo adjust theangle of th ehea drestraint:
push or pull th ehead restrain tin th edirection
of arrow ;.
Resetting the front seat head restraints
It is necessar yto reset th efron tseat head
restraints after th evoltag esupply has been
interrupted, e.g. if th ebattery has been com-
pletely discharged or disconnected.
XMak esur ethat th ecup holder on th ecenter
console is folded down (Ypage 220).
XMoveth eseat as far forward as possibl eand
th ehead restrain tin as far as possible.
Rear seat head restraints
Important safety notes
GWARNIN G
If head restraints are no tinstalled and adjus-
te dcorrectly, they canno tprovid eprotection
as intended. There is an increased ris kof
injury in th ehead and neck area, e.g. in th e
event of an acciden tor when braking .
Always drive wit hth ehead restraints instal -
led. Befor edrivin goff ,mak esur efor every
vehicl eoccupant that th ecenter of th ehead
restrain tsupport sth ebac kof th ehead at
about eye level. Observ
eth efollowin gwhen adjusting th ehead
restraints :
XDo notrotate th ehead restraints of th efron t
and rear seats.
Otherwise ,you canno tadjust th eheight and
angle of th ehead restraints correctly.
XAdjus tth ehead restrain tso that it is as close
as possibl eto your head .
Adjusting th erea rsea thea drestrain t
height
XOnce th ehead restrain tis fully lowered, press
release catch :.
XTo raise:pull thehead restrain tup to th e
desired position .
XTo lower:press release catch :and push
th ehead restrain tdown until it is in th e
desired position .
Installing/removing th erea rsea thea d
restraints
XTo remove: pull thehead restrain tup to th e
stop.
XPress release catch :and pull th ehead
restrain tout of th eguides.
XTo re-install :plac eth ehead restrain tin th e
guide sof th ebackrest .
iThe notches on th eguide rod mus tbe on th e
left-han dside when viewed in th edirection of
travel .
XPush th ehead restrain tdown until you hear it
engage in position .
Seats75
Seats, steering wheel and mirrors
Z
Adjusting themulticontour seat
:To adjust th ethigh cushion
;To adjust th ebackrest contour in th elumbar
region
=To adjust th ebackrest contour in th eupper
bac kregion
?To adjust th eside bolsters of th eseat back-
res t
You can adjust th econtour of th efron tseat s
individually so as to provid eoptimum support
for your bac kand sides.
XMak esur ethat th eSmartKey is in position 1
or 2(Ypage 112) in th eignition lock.
Adjusting the 4-way lumbar support
You can adjust th econtour of th efron tseat
backrest sindividually to provid eoptimum sup-
por tfor your back.
:To rais eth ebackrest contour
;To softe nth ebackrest contour
=To lower th ebackrest contour
?To harden th ebackrest contour
Switching the seat heating on/off
Gene ral notes
GWARNIN G
Repeatedly switching on th eseat heating can
caus eth eseat cushion and backrest pads to
become ver yhot .The healt hof person swit h
limite dtemperature sensitivit yor alimite d
abilit yto reac tto excessivel yhigh tempera-
tures may be affecte dor they may eve nsuffer
burn-like injuries. There is aris kof injury.
Therefore ,do no tswitch th eseat heating on
repeatedly.
The red indicator lamp sin th ebutto nindicat e
th eheating level you hav eselected.
XMak esur ethat th eSmartKey is in position 2
in th eignition lock.
iIf th ebattery voltag eis to olow, th eseat
heating may switch off .
On eor mor eof th eindicator lamp sin th eseat
heating butto nare flashing.
Switching the front-seat heating on/off
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 sgo out .
iThe system automatically switches from
level 3to level 2after approximately eigh t
minutes.
The system automatically switches down
from level 2to level 1after approximately te n
minutes.
76Seats
Seats, steering wheel and mirrors
The system automatically switches off
approximately 35 minutes after it is set to
level1.
Switching the rear-seat heating on/off
XTo switch on: press button:repeatedly
until the desired heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iThe system automatically switches from
level 3to level 2after approximately eight
minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
Problems with the seat heating
If the on-board voltage is too low, the seat heat-
ing is switched off automatically.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
If the on-board voltage is only interrupted
briefly, the seat heating will switch back on
automatically. If the seat heating is not
switched on automatically:
XSwitch on the seat heating manually
(Ypage 76)
Switching the seat ventilation on/off
Switching on/off
Seat ventilation is only available for the front
seats.
The three blue indicator lamps in the buttons
indicate the ventilation level you have selected.
XMake sure that the SmartKey is in position 2
(Ypage 112) in the ignition lock.
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
iIf you open the side windows and the sliding
sunroof using the SmartKey (Ypage 68), the
driver's seat ventilation automatically
switches to the highest level.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
Problems with the seat ventilation
If one or all of the indicator lamps in the seat
ventilation button are flashing, the seat ventila-
tion has switched off automatically. The vehi-
cle's electrical system voltage is too low
because too many electrical consumers are
switched on.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
Once the battery is sufficiently charged, the
seat ventilation will switch back on automat-
ically.
Seats77
Seats, steering wheel and mirrors
Z
Problems with the steering wheel heat-
ing
:To switch on the steering-wheel heating
;To switch off the steering-wheel heating
=Indicator lamp
If steering wheel heating indicator lamp =is
flashing, the steering wheel heating has
switched off automatically. The vehicle's elec-
trical system voltage is too low because too
many electrical consumers are switched on.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
Once the battery is sufficiently charged, the
steering wheel heating will switch back on
automatically.
Steering wheel EASY-ENTRY/EXIT fea-
ture
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If somebody becomes 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 drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
!Do not activate the EASY-ENTRY/EXIT fea-
ture, if the seat backrest is reclined too far
backwards. This can damage the front or rear
seats. You must first move the backrest to a
vertical position.
The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 181).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel moves upwards and towards
the dashboard if:
Ryou remove the SmartKey from the ignition
lock or
Ryou open the driver's door with the SmartKey
in position 0or 1in the ignition lock
iThe steering wheel only moves upwards and
towards the dashboard if it has not already
reached the upper steering limiter.
Steering wheel79
Seats, steering wheel and mirrors
Z
Setting the exterior mirrors
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must be
reset. The exterior mirrors will otherwise not
fold in when you select the "Fold in mirrors when
locking" function in the on-board computer
(
Ypage 181).
XMake sure that the SmartKey is in position 1
in the ignition lock (Ypage 112).
XBriefly press :.
Folding the exterior mirrors in/out
automatically
If the "Fold in mirrors when locking" function is
activated in the on-board computer
(
Ypage 181):
Rthe exterior mirrors fold in automatically as
soon as you lock the vehicle from the outside.
Rthe exterior mirrors fold out again automati-
cally as soon as you unlock the vehicle and
then open the driver's or front-passenger
door.
Exterior mirror pushed out of position
XPress button :repeatedly until you hear the
mirror engage in position.
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
(
Ypage 80).
Automatic anti-glare mirrors
The rear-view mirror and the exterior mirror on
the driver's side automatically go into anti-glare
mode if:
Rthe ignition is switched on and
Rincident light from headlamps strikes the sen-
sor in the rear-view mirror
iThe mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior light- ing is switched on.
Parking position for the exterior mir-
ror on the front-passenger side
Setting/storing the parking position
Using reverse gear
:Left-hand exterior mirror
;Right-hand exterior mirror
=Adjustment button
?Memory button
You can position the front-passenger side exte- rior mirror in such a way that you can see the
rear wheel on that side as soon as you engage
reverse gear. You can store this position.
XMake sure that the vehicle is stationary and
that the SmartKey is in position 2in the igni-
tion lock (
Ypage 112).
XPress button ;for the exterior mirror on the
front-passenger side.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse adjustment button =to adjust the exte-
rior mirror to a position that allows you to see
the rear wheel and the curb.
The parking position is stored.
Mirrors81
Seats, steering wheel and mirrors
Z
Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops: (Ypage 23).
Exterior lighting
Important safety notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched on
even during the daytime. In some countries,
operation of the headlamps varies due to legal
requirements and self-imposed obligations.
Light switch
Operation
!Switch off the parking lamps and low-beam
headlamps when you leave the vehicle. This
prevents the battery from discharging.
!If the battery has been excessively dis-
charged, the parking lamps or standing lamps
are automatically switched off to enable the
next engine start. Always park your vehicle
safely and sufficiently lit according to legal
standards. Avoid the continuous use of the
T parking lamps for several hours. If pos-
sible, switch on the Xright or the Wleft
standing lamp.
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to Ã.
The turn signals, high-beam headlamps and the
high-beam flasher are operated using the com-
bination switch (
Ypage 88).
The exterior lighting (except the parking/stand-
ing lamps) switches off automatically if you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey in
position 0in the ignition lock.
Low-beam headlamps
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
84Exterior lighting
Lights and windshield wipers
Rear-compartmentoverhead control panel
:
p Switches the right-hand read ing lamp
on/o ff
;p Switches the left-hand read ing lamp
on/o ff
Interior lighting control
General notes
The interior lighting functions are automatical ly
deactivated after some time except for whenthe
Sm artKey is in posi tion2in the igniti on lock.
This prevents your veh icle's battery fr om dis-
chargi ng.
The brightne ssofthe ambient lighting maybe
set using the co ntrol onthe instrument cluster
(
Ypage 171).
Automatic interior lighting control
Fron toverhead control panel
:
p Switches the left-hand fr ont read ing
lamp on/o ff
;cSwitches the fr ontint erior lighting on
=t Switches the cargo co mpartment
lamp/ rear co mpartment lighting on/o ff
?|Switches the fr ontint erior lighting /
automatic interior lighting control off
Ap Switches the rig ht-hand fr ont read ing
lamp on/off
BSwitches the automat icinterior lighting co n-
tr ol on
XTo switch on:mov e switch Bto the center
posi tion.
The interior lighting swit chesonautomatical ly
when it is darkifyou:
Runlock the vehicle
Ropen adoor
Rrem ove theSmartKey fr omthe igniti on lock
XToswitch off: press the|symbol on
switch B.
The interior lighting remains swit ched off even
when itis dark if you:
Runlo ck the vehicle
Ropen adoor .
Rremove theSmartKey fr omthe igniti on lock.
The interior light isactivated for a short while
when theSmartKey is rem oved from the igniti on
loc k.You can activate th isdelayed switch-off
using the on-board co mputer (
Ypage 180).
When a frontdoor isopen ed, the fr ontint erior
lighting comeson.When a rear door is open ed,
the rear interior lighting comeson.In addition ,
the courtesy lights co me on.
iIf adoor remains open and theSmartKey is
no t in the igniti onlock, the interior lighting
switches off after a short while.
Manual interior lighting control
Front interior lighting
!Ifthe interior lighting has been switched on
manually, it will notbe switched off automat-
ically.
This can cause the starter battery to dis-
charge.
Make sure that the interior lighting does not
remain switched ontoo long after the engine
has been switched off.
90Interior lighting
Lights and windshield wipers