Ifyo udo not open theve hicle within appr ox‐
imately 40 seconds af ter unlocking:
RThe vehicle is loc ked again.
RAnti- theft pr otection is reactivated.
Do not keep the SmartK eytoget her with elec‐
tronic devices or me tal objects. This can af fect
th e SmartK ey's functionality.
% If battery check lamp 2does not light up
af te r pressing the% or& button, the
battery is dischar ged.
Ac tivating/deactivating the acoustic lo cking
ve rification signal
Multimedia sy stem:
, 9 H K L F O H.î 9 H K L F O H 6 H W
W L Q J V. $ F R X V W L F / R F N
#Ac tivate Oor deacti vate ª the function.
Priming/deactivating the panic ala rm
PrerequisitesRIgnition switched off.
#Toprime: press button 1for app roxima tely
one second .
A visu al and audible alarm is triggered.
#Todeactivate: briefly press but ton1 again.
or
#Press thest art/ stop button on the cockpit
(the SmartK eyis inside theve hicle).
Changing the unlocking settings
Po ssible unlocking functions of theke y:
RCentral unlocking
RUnlocking the driver's door and fuel filler flap
#To switch between settings: pressthe
% and& buttons simultaneously for
appr oximately six seconds until the battery
ch eck lamp flashes twice.
If th e unlocking function forth e driver's door
and fuel filler flap has been selecte d:
RPressingthe% button a second time cen‐
trally unloc kstheve hicle.
RVe hicles with KEYLESS-GO: Ifyo uto uch
th e inner sur face of the door handle on the
driver's door, only the driver's door and fuel
fi ller flap are unlo cked.
Re ducing the energy consu mption of the
SmartK ey
Ifyo u do not intend touse theve hicle for an
ex tended pe riod of time, you can deactivate the
fo llowing functions on the SmartK ey.
RKEYLESS-GO starting function
RKEYLESS-GO
56
Opening and closing
Doors
Unlocking and opening doors from the inside
#To unlock and open a front door: pull door
handle 2.
Locking pin 1pops up when the door is
unloc ked.
#To unlock are ar door: pullthere ar door
handle.
The locking pin pops up when there ar door
is unlo cked.
#To open a rear door: pullthere ar door han‐
dle again.
Locking/unlo cking theve hicle centrally from
th e inside
#To unlock :press button 1.
#Tolock: press button 2.
This does not lock or unlock the fuel filler flap.
The vehicle is not unloc ked:
RIfyo u ha veloc kedth eve hicle using the
SmartK ey.
RIfyo u ha veloc kedth eve hicle using KEY‐
LESS-GO.
Locking and unlocking theve hicle with KEY‐
LESS-GO
Requ irementsRThe SmartK eymust be outside theve hicle.
RThe dis tance between the SmartK eyand the
ve hicle must not exceed 3 ft(1 m).
RThe driver's door and the door at which the
door handle is used must bo thbe closed.
60
Opening and closing
#Toswitch on the po wer supp ly:press but‐
to n1 (USA) or 2(Canada) once.
Yo u can now act ivate the windshield wiper,
fo rex 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 star t:start the
ve hicle in emer gency operation mode.
Cooling or heating the vehicle interior before
st arting the jou rney
If yo ustart theve hicle via your smartphone, the
pr ev iously selecte d climate control setting 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 .
% You can also set thete mp erature with your
smartphone. Info rm ation on Mercedes me
connect and other services: http://
www.mercedes.me.
St arting theve hicle using a smartphone
&
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work.
13 0
Driving and pa rking
&WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il.
#Ne ver use the brake pedal as a foot re st.
#Do not depress the brake pedal and the
accelerator pedal at the same time
while driving.
* NO
TEWearing out the brake linings by
continuously dep ressing the brake pedal
#Do not depress the brake pedal contin‐
uously whilst driving.
#To use the braking ef fect of the engine,
shift toa lo werge ar in good time.
* NO
TEDama getothe driv etra in and the
engine when pulling away
#Do not warm upthe engine when the
ve hicle is stationar y.Pull away immedi‐
atel y.
#Avoid high engine speeds and driving at
full thro ttle until the engine has reached
operating temp erature.
#Do not allow the wheels tospin.
* NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel
The engine is not running smoot hly and is
misfiring.
Non-combus ted fuel may get into the cata‐
lytic con verter.
#Only depress the accelera tor pedal
slightl y.
#Have the cause rectified immediately at
a qu alified specialist workshop.
Limited braking ef fect on salt-treate dro ads:
RDue tosalt build-up on the brake discs and
brake lining, the braking dis tance can
increase conside rably or result in braking
only on one side.
RMaintain a much greater dis tance totheve hi‐
cle in front.
To preve nt salt build-up:
RBrake occasionally while paying attention to
th e tra ffic conditions.
RCarefully depress the brake pedal at the end
of the journey and when starting the next
journe y.
ECOstart/s top function
Opera tion of the ECO start/s top function
The engine is switched off au tomatical ly:
RIf yo ubr ake theve hicle toast andstill in
transmission position hori.
RIf all vehicle conditions for an au tomatic
engine stop are met.
13 4
Driving and pa rking
#Toactivate: pullsteering wheel gearshift
paddle 1or2.
Manual gearshifting is activated for a short
time. The cur rent gear is displa yed in the
multifunction displa y.
#Toshift up: pullsteering wheel gearshift
paddle 2.
#Toshift down: pullsteering wheel gearshift
paddle 1.
#Todeactivate: pullsteering wheel gearshift
paddle 2and hold it in place.
The transmission position
h appears in the multifunction displa y.
% Ifyo u select theManual drive setting in
drive prog ram I, manual gearshifting is per‐
manent lyactivated.
Gears hiftrecommendation
The gearshift recommendations assist youin
adopting an economical drivingst yle.
#If ge arshift recommendation message 1is
shown in the multifunction displa y,shift to
th ere commended gear.
Using kickdow n
#Maximum acceleration: depressthe accel‐
erator pedal be yond the pressure point.
During kickdown, you cannot shift gears using
th esteering wheel gearshift paddles. The auto‐
matic transmission shifts up tothe next gear
when the maximum engine speed is reached to
pr otect the engine from overrev ving.
#Ease off the accelera tor pedal once the
desired speed is reached.
Glide mode function
Glide mode helps youto reduce fuel consump‐
tion.
Glide mode is characterized bythefo llowing:
RThe combustion engine is disconnected from
th e driv etra in.
RThe engine speed cor responds tothe idle
speed.
Glide mode is activated if thefo llowing condi‐
tions are me t:
RDrive program Eis selected.
RThe speed is within a sui table range.
RThe cours e ofthero ad is suitable, forex am‐
ple, no steep uphill or downhill gradients.
RYo u are no longe r depressingthe accelerator
or brake pedal.
14 0
Driving and pa rking
%Glide mode can also be activated if you ha ve
selected the "Eco" setting forth e drive
(engine management) when in drive program
I.
Glide mode is deactivated again if one of the
conditions is no longer met.
Ve hicles with Driving Assistance Package,
Di stance Pilot DISTRONIC or Active Brake
Assi st:Glide mode is also deacti vated depend‐
ing on the traf fic situation and theve hicle then
switches toove rrun mode. This fur ther reduces
fuel consum ption.
Glide mode can also be pr evented bythefo llow‐
ing parame ters:
RGradient
RTe mp erature
RHeight
RSpeed
RObs tacle de tection
ROpe rating condition of the engine
Re fueling
Refueling theve hicle
&
WARNING Risk offire and explosion
caused byfuel
Fu els are highly inflammable.
#You must avoidfire , open flames, creat‐
ing spar ksand smoking.
#Before refueling, switch off the engine
and, if ins talled in your vehicle, thest a‐
tionary heater.
& WARNING Risk of injury from fuel
Fu els are poisonous and harmful to your
health
#Do not swallow fuel or let it come into
contact with skin, eyes or clo thing.
#Do not inhale fuel vapors.
#Ke ep children away from fuel.
If yo u or other people come into contact with
fuel, obser vethefo llowing:
#Immediately rinse fuel off your skin with
soap and water.
#If fuel comes into contact with your
ey es, immediately rinse them thor‐
oughly with clean water.Seek medical
attention immediately.
#If yo u sw allow fuel, seek medical atten‐
tion immediatel y.Do not induce vomit‐
ing.
#Change immediately out of clo thing that
has come into con tact wi thfuel.
&
WARNING Risk ofexplosion or fire due
to electros tatic charge
Electros tatic charge can cause spa rks and
th ereby ignite fuel vapors.
#Alw aysto uch the me talve hicle body
before opening the fuel filler cap or
to uching the pump nozzle.
This dischar ges any electros tatic charge that
may ha vebuilt up.
Driving and parking 14
1
*NO
TEDama gecaused bythe wrong fuel
Fu elthat does not con form totherequ ired
qu ality can lead toinc reased wear as well as
damage tothe engine and exhaust sy stem.
#Only use the fuel recommended.
* NO
TEDama gecaused bythe wrong fuel
Ve hicles with a gasoline engine:
Even small amounts of the wrong fuel could
re sult in damage tothe fuel sy stem, the
engine and the emission control sy stem.
#Only refuel with lo w-sulfur premium
grade fuel.
This fuel may contain up to10 %ethanol.
Yo ur vehicle is suitable for use with E10 fuel.
Do not refuel using:
RDiesel
RE15, E85, E100
RGasoline containing me thanol (M15, M30,
M85, M100)
RGasoline with additives con taining me tal
If yo u accidenta llyrefuel with the wrong fuel:
#Do not switch the ignition on.
#Consult a qualified specialist workshop.
* NO
TEDo not use diesel torefuel vehi‐
cles with a gasoline engine.
#Do not switch on the ignition if you
accidenta llyrefuel with the wrong fuel.
Otherwise, fuel can enter the fuel sys‐
te m. Even small amounts of the wrong
fuel could result in damage tothe fuel
sy stem and the engine. Notify a quali‐
fi ed specialist workshop and ha vethe
fuel tank and fuel lines drained com‐
pl et ely.
* NO
TEDo not overfill the fuel tank as this
may damage the fuel sy stem.
#Only fill th e fuel tank until the pump
nozzle switches off.
* NO
TEDo not overfill the fuel tank as oth‐
erwise fuel could spr ayout when the
pump nozzle is remo ved.
#Only fill th e fuel tank until the pump
nozzle switches off.
Re quirement
The vehicle must be unloc ked.
% Do not get into theve hicle again during the
re fueling process. Otherwise, electros tatic
ch arge could build up again.
Obser vethe no tes on operating fluids
(
→page 372).
14 2
Driving and pa rking
Refueling
1Fuelfiller flap
2Brac ketfo rth e fuel filler cap
3Ti re pressure table
4QR code forre scue card
5Fu el type
#Press fuel filler flap 1.
#Turn the fuel filler cap coun ter-clockwise and
re mo veit.
#Insert the fuel filler cap into holder 2.
#Completely inse rtthefiller neck of the fuel
pump nozzle into theta nk, hook in place and
re fuel.
#Only fill th e fuel tank until the pump nozzle
switches off.
Pa rking
Switching off theve hicle with thest art/s top
button
& WARNING Risk offire caused byhot
ex haust sy stem parts
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact
wi th hot parts of theex haust sy stem or
ex haust gasflow .
#Park theve hicle so that no flammable
material can come into con tact wi thhot
ve hicle components.
#In particular, do not park on dry grass‐
land or har vested grain fields.
&
WARNING Risk of accident and injury
due tochildren left unatte nded inthe
ve hicle
If yo u lea vechildren unaccompanied in the
ve hicle, they may be able toset theve hicle in
motion, forex ample by:
RRe leasing the parking brake.
RShifting the transmission out of park
position j.
RStarting the engine.
In addition, they may operate vehicle equip‐
ment.
#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.
Driving and parking 14
3