Page 64 of 486
ProblemPossible causes/consequences and MSolutions
RThe SmartKeyis malfunctioning.
#Activate KEYLESS-GO .
#Check the battery using the battery check lamp and replace if necessary .
#Use the mechanical keyto lock or unlock theve hicle .
#Ha ve theve hicle and SmartK eychecked at a qualified specialist workshop.
Switching the automatic locking feature
on/off
The vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace.
#To deactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
#To activate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds.
Danger of being loc ked out when the function is
activated:
RIf th eve hicle is being tow star ted/pushed.
ROn a roller dynamome ter.
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Opening and closing
Page 70 of 486

The trunk lid could be opened or closed uninten‐
tionally,in thefo llowing situations:
RIf persons' arms or legs mo veinthe sensor
de tection range, e.g. when polishing theve hi‐
cle, sitting on the edge of the trunk, or pick‐
ing up objects.
RIf objects are guided behind or placed behind
th eve hicle, e.g. charging cables, tensioning
st ra ps or luggage.
RWhen working on the trailer coupling, trailers
or rear bicycle rack s.
Deactivate KEYLESS-GO (
→page 56) or do not
car rythe SmartK eyabout your person insuch
situations.
Switch ing separate trunk locking on/off
Ifyo u centrally unlo cktheve hicle while separate
locking is activated, the trunk remains loc ked.
#To switch on: slidethe switch toposition
1.
#To switch off: slidethe switch toposition
2.
% If an accident has been de tected, the trunk
unloc kseve n if separate lo cking is switched
on.
Un locking the trunk with the emer gency
re lease from inside
Re quirement:RThe 12Vve hicle battery is connected and
ch arge d.
#Press emer gency release button 1brief ly.
The trunk lid unloc ksand opens.
68
Opening and closing
Page 80 of 486

ProblemPossible causes/consequences and MSolutions
Ve hicles with a panoramic sliding
sunroof: The 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
Immobilizer
The immobilizer pr events your vehicle from being
st ar ted without the cor rect key.
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on.
When leaving theve hicle, alw aysta ke theke y
with you and lock theve hicle. An yone can start
th e engine if a valid keyhas been lef tinside the
ve hicle.
% Intheeve ntthat the engine cannot bestar‐
te d (y etthest ar ter battery is charge d), the
sy stem is not operational. Contact an authorized Mercedes-Benz Center or call
1-800-FO
R-MERCedes (in the USA) or
1-800-387-0 100 (in Canada).
ATA (anti-theft alarm system)
Fu nction of theATA system (anti-theft ala rm
sy stem)
If th eATA system is armed, a visual and audible
alarm is triggered in thefo llowing situations:
RA door is opened.
RThe trunk lid is opened.
RThe hood is opened. The
ATA sy stem is armed automatically af ter
appr oximately 10seconds:
RAfter locking theve hicle with the SmartK ey.
RAf ter locking theve hicle using KEYLESS-GO.
78
Opening and closing
Page 110 of 486

Exterior lighting
Lighting systems and your responsibility
The various lighting sy stems of theve hicle are
only aids. The driver of theve hicle is responsible
fo r cor rect vehicle illumination in accordance
with the pr evailing light and visibility conditions,
legal requirements and traf fic situation.
Light switch
Opera ting the light switch
#1W Left-hand standing lamp
#2 X Right-hand standing lamp
#3 T Parking lights and license plate
lighting
#4 Ã Automatic driving lights (prefer red
light switch position)
#5 L Low beam/high beam
#6R Switches there ar fog light on or off
When low beam is activated, the indicator lamp
fo rth e parking lights is deactivated and replaced
by the low beam indicator lamp.
Alw ays park your vehicle safely and in a well-lit
area, in accordance with there leva nt le galst ipu‐
lations.
* NO
TEBattery discharging byoperating
th est anding lights
Operating thest anding lights over a period of
hours puts a stra in on the batter y.
#Where possible, switch on the
ri ght X or left Wparking light.
Inthe case of se vere battery discharging, the
parking lamps or standing lamps are automati‐
cally switch ed offtofacilitate a futu reengine
st art.
10 8
Light and visibility
Page 119 of 486

#Pressthe wiper blade be yond the point of
re sis tance in the direction of ar row3on
th e wiper arm.
The wiper blade engages with a noticeable
click and is freely mo vable again.
#Lay the wiper arm back on the windshield.
Mir rors
Operating the outside mir rors
&
WARNING Risk of injury from adjusting
th eve hicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
Rifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
Rifyo ufa sten your seat belt while theve hi‐
cle is in motion
#Before starting the engine: adjust the
driver's seat, the head restra int, the
steering wheel or the mir ror and fasten
yo ur seat belt.
&
WARNING Risk of accident due tomis‐
judgment of dis tances when using the
passenger mir ror
The outside mir ror on the front passenger
side reflects objects on a smaller scale. The
objects in view are in fact closer than they
appear.
As a result, you may misjud gethe dis tance
between you and thero ad user driving
behind you, forex ample, when changing
lanes.
#Therefore, alw ays look over your shoul‐
der in order toensure that you are
aw are of the actual dis tance between
yo u and thero ad users driving behind
yo u.#To fold in or out: brieflypress button 1.
% Ifth e battery has been disconnected or com‐
ple tely discharged ,th e outside mir rors must
be reset. Only then will the automatic mir ror
fo lding function workproperly.
#To adjus t:select therequ ired mir ror using
button 3or4.
Light and visibility 11
7
Page 130 of 486

Driving
Switching on the po wer supp lyor ignition
using thest art/s top button
&
WARNING Risk of accident and injury
due tochildren left unatte nded inthe
ve hicle
If ch ildren are left unatte nded intheve hicle,
th ey could:
ROpen doo rs,th ereby endangering other
persons or road users
RGet out of theve hicle and be hit by
oncoming traf fic
ROperate vehicle equipment
In addition, thech ildren could also set the
ve hicle in motion, forex ample, by:
RRe leasing the parking brake
RShifting the transmission out of park
position j
RStarting the engine.
#Ne ver lea vechildren and animals unat‐
te nded in theve hicle.
#When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle.
#Ke ep the SmartK eyout of there ach of
ch ildren.
&
WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases causes poisoning.
#Ne ver lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation.
& WARNING Risk offire caused byflam‐
mable material on theex haust sy stem
Flammable materials brought in byeither ani‐
mals or environmen tal influences may ignite
if th ey come into contact wi thhot parts of
th e engine or exhaust sy stem.
#Therefore, check regularly that there
are no flammable materials in the
engine compartment or on theex haust
sy stem.
Re quirements:RThe SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged.
12 8
Driving and pa rking
Page 131 of 486

#Toswitch on the po wer supp ly:press but‐
to n1 (USA) or 2(Canada) once.
Yo u can act ivate the windshield wiper, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
RThe driver's door is open.
RYoupr ess butto n1 (USA) or 2(Canada)
twice.
#To switch on the ignition: press button 1
(USA) or 2(Canada) twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
RYoudo not start theve hicle within
15 minutes.
RYoupr ess butto n1 (USA) or 2(Canada)
once.
St arting theve hicle
Starting theve hicle with thest art/s top but‐
to n
Requ irements:
RThe SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged.
#Shift the transmission toposition jori.
#Depress the brake pedal and push button 1
(USA) or 2(Canada) once.
#Ifth eve hicle does not star t:switch off non-
essential consumers and press button 1
(USA) or 2(Canada) once.
#Ifth eve hicle still does not start and the
3 O D F H W K H . H \ L Q W K H 0 D U N H G 6 S D F H 6 H H
2 S H U D W R U
V 0 D Q X D O display message also
appears in the multifunction display: start
th eve hicle in emer gency operation mode. St
arting theve hicle via Remo teOnline serv‐
ices
Cooling or heating theve hicle interior before
st arting the journey
If yo ustart theve hicle via your smartphone, the
pr ev iously selecte d air conditioning adjustment
is active.
Before starting, make sure:
RThe legal stipulations in the area where your
ve hicle is par ked permit engine starting via
smartphone.
RIt is safe tostart and runth e engine where
yo ur vehicle is par ked.
RThe fuel tank is suff icientlyfilled.
RThe star ter battery has suf ficient charge .
Driving and pa rking 12
9
Page 151 of 486

shift from transmission positionjtoh or
k.
RIf th e transmission is in position k,the
trunk lid must be closed.
If th e seat belt tongue is not inser ted into the
seat belt buckle of the driver's seat, thefo llow‐
ing conditions must be fulfilled:
RThe driver's door is closed.
RYo u mo vethe transmission out of transmis‐
sion position joryou ha veprev iously
driven fasterthan 2 mph (3 km/h).
RIfth e transmission is in position k,the
trunk lid must be closed.
If th e electric parking brake is released, the
F (USA) or !(CANADA) indicator lamp in
th e instrument clus ter goes out. Applying or
releasing the electric pa rking
brake manually
#To appl y:push handle 1.
The F (USA) or !(Canada) indicator
lamp appears in the instrument clus ter.
#To release: switch on the ignition.
#Pull handle 1.
The F (USA) or !(Canada) indicator
lamp in the instrument clus ter goes out.
Emer gency braking
#Press and hold handle 1.
When theve hicle has been braked toa
st andstill:
RThe electric parking brake is applied.
RThe F (USA) or !(Canada) indica‐
to r lamp appears in the instrument clus‐
te r.
Pa rking theve hicle for a long period
Ifyo u lea vetheve hicle par kedfo r longer than
fo ur we eks, the battery may be damaged.
If yo u lea vetheve hicle par kedfo r longer than six
we eks, it may suf fer dama geas a result of lack
of use.
Information on parking your vehicle for an exten‐
ded pe riod can be obtained at a qualified spe‐
cialist workshop.
Driving and parking 14
9