roa
ds. Othe rwise,you could dam aget he
drive train. Key positions
Key g
To remove the key
1 Power supply for some consumers, such
as the windscreen wipers
2 Ignition (power supply for all consumers)
and drive position
3 To start the engine
i If the key does not belong to the vehicle,
it can still be turned in the ignition lock.
However ,the igni tion will not be switched
on The engin ecannot be started.
KEYLESS-GO Genera
lnotes
Vehicles with KEYLESS-GO are equipped with
ak ey featuri ngan integrated KEYLESS-GO
function and adetachable Start /Stopbutton.
The Start/Stop button must be inserted in the
ignition lock and the KEYLESS-GO key must
be in the vehicle.
Pressi ngthe Start/Stop button several times
in successio ncorresponds to the different
key position sinthe igni tion lock .This is only
the case if you ar enot depressing the brake
pedal.
If you depress the brake pedal and press the
Start/S topb utton, the engine starts immedi-
ately. X
Position 0:ifStart/Stop button :has not
yet bee npressed, this correspond stothe
key being removed from the ignition.
X Position 1:pressStart/Stop button :
once.
You can now activate the windscreen wip-
ers, for example.
i If you press Start/Stop button :twice
when in this position, the powe rsupply is
deactivated again.
X Position 2(ignition): press Start/Stop but-
ton :twice.
i If you press Start/Stop button :once
when in this position and the driver' sdoor
is open, the power supply is deactivated
again.
Removing th eStart/Stop button
You can remove the Start/Stop butto nfrom
th ei gnition lock and star tthe vehicle as nor-
ma lusing the key.
i You do not hav etoremov ethe Star t/Stop
butto nfrom th eignition lock when you
leav ethe vehicle.
i It is only possible to switc hbetween KEY-
LE SS -GO mode and key operation whe nthe
transmission is in position P. Driving
139Drivingand park ing Z
X
Remov eStart/Stop button :from ig nition
lock ;.
i When you insert Star t/Stopbutton:
int oignition lock ;,thesystem needs
approximately two seconds recognition
time before you ca nuse Star t/Stop but-
ton :. Startin
gthe engine
Important safety notes G
WARNING
Never leav ethe engin erunnin ginenclosed
spaces. The exhaust gase scontai ncarbon
monoxide. Inhalin gexhaust fumes consti-
tutes ahealt hhazard and could lead to loss
of consciousness or eve ndeath.
i Vehicles with apetrol engine: the cata-
lytic conver terp reheats for up to 30 sec-
ond safter acold star t.The sound of the
engin emay change during this time.
Automatic transmission X
Shift the transmission to position P.
The transmission position displ ay inthe
multifunction displa yshows P
(Y page 146).
i You can also star tthe engin ewhen the
transmission is in position N.Sta
rting procedur ewith the key X
To star tapetrol engine: turn the key to
position 3in the ignition lock
(Y page 139 )and releas eita ss oon as the
engin eisrunning.
X To star tadiesel engine: turn the key to
position 2in the ignition lock
(Y page 13 9).
The % preglow indicator lam pinthe
instrumen tcluster lights up.
X When the %preglow indicator lamp
goes out, tur nthe key to position 3
(Y page 139) and release it as soon as the
engin eisrunning.
i You can start the engine without preglow
if the engine is warm.
i You can also use the touch-star tfunction.
To do this, turn the key to position 3
(Y page 139 )and releas eitimmediately.
Th ee ngine then starts automatically.
Using KEYLESS-GO to start the engine G
WARNING
You rvehicle can be star tedu sing avalid KEY-
LESS-GO key. For this reason, children should
never be left unsupervised in the vehicle.
Always take the key with you when leaving the
vehicle, even if you are only leaving it for a
short time.
i The Start/Stop button can be used to
start the vehicle without inserting the key
into the ignition lock. The key must be in
the vehicle and the Start/Stop button must
be inserted in the ignition lock. This mode
for starting the engine operates independ-
ently of the ECO start/stop automatic
engine start function. 140
DrivingDrivin
gand parking
R
paraffin
R kerosene
Do not mix these fuels with diesel fuels and
do not use any special additives. Other-
wise, this can lead to damage to the engine.
This excludes flow improver ;see "Low out-
side temperatures".
! Use afilter when adding fuel from afuel
can. Otherwise, the fuel lines and/or the
diesel injection system could be blocked by
particles from the fuel can.
For further information on "Fuel", see
(Y page 374).
Low outsid etemperatures Diesel fuel with improved cold flow qualities
is available during the winter months. In
Europe, various climate-dependent low-tem-
peratur eclasses are defined in EN 590 .Refu-
elling with diesel fuel which complies with the
climatic specification sofstandard EN 590
can hel ptoprevent operatin gproblems. At
exceptionall ylow tempera tures, it is possible
that the flow properties of the fuel ma ybe
inadequate. This also applies to fuel that has
not been adapted to suit the climatic condi-
tions, e.g. diesel fuel from warmer regions.
i Further information about country-spe-
cific fuel properties can be obtained from
oil companies, e.g. at filling stations.
Flow improver Flow improvers can be added to improv
ethe
cold resistan ceof diesel fuel. The effective-
ness of aflow improver is not guaranteed with
every diesel fuel.
Correc tdosage and thorough mixing ar edeci-
sive factor sinensuring improvement in low-
temperature resistance. Avoid excessive dos-
age .Exce ssiv edosage ma yactuall ydecrease
low-temperature resistanc eunder certain cir-
cumstances. Follo wthe manufacturer's dos-
ing inst ructions. Mix the additive with the diese
ling ood time,
befor ethe flo wproperties of th ediesel
become inadequate. Malfunction scan other-
wise only be rectified by heating the entire
fuel system, e.g. by parking the vehicle in a
heated garage.
Observe the information provided by the man-
ufacturer when using aflow improver. Only
use flow improvers that have been tested and
approved by Mercedes-Benz. You can obtain
further information from any Mercedes-Benz
Servic eCentre. Refuelling
Fuel filler flap The fuel filler fla
pisunlocke dorlockedauto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
in the instrument cluster 8.The arrow
nex ttot he filling pum pindicate sthe side of
the vehicle. :
To open the fuel filler flap
; To inser tthe fuel filler cap
= Fue ltype
? Tyre pressure table
Opening X
Switch off the engine.
X Remove the key from the ignitio nlock. 154
RefuellingDriving and parking
KEYLESS-GO: open th
edriver's door. This
switche sthe ignition to positi on0,w hich
corresponds to having removed the key.
The driver's door can be closed again.
X Press the fuel filler fla pint he direction of
arrow :.
The fuel filler fla pswings up.
X Turn the fuel filler cap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap ;.
X Completely insert the pump nozzle into the
filler neck and refuel.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damag ethe
fuel system.
Closing X
Replace the fuel filler cap and tur nitclock-
wise .The fuel filler cap audibly engages.
X Close the fuel filler flap. Refuelling
155Drivingand park ing Z
ded. Fillin
gavehicle standing on an uneven
surface is not permitted. There is adanger
of overfilling, which can cause damage to
BlueTEC exhaust gas aftertreatment com-
ponents.
Have the AdBlue ®
tank refilled at aqualified
specialist workshop. However ,you can also
top up the AdBlue ®
tan k:
R at afilling station with an AdBlue ®
filling
pump
R with AdBlue ®
refill bottles
R with an AdBlue ®
refill canister
If the outside temperature is lower than
Ò 11 †, it may be difficult to top up. If
AdBlue ®
is frozen and ther eisanactive warn-
ing indicator, topping up may not be possible.
Park the vehicle in awarmer place, e.g. in a
garage, until AdBlue ®
has become fluid again.
Topping up is then possible again. Alterna-
tively, have the AdBlue ®
tank refilled at a
qualified specialis tworkshop.
When the pum pnozzle switches off automat-
ically during filling at afilling pump, the
AdBlue ®
tank has been completely filled. Do
not fill the the AdBlue ®
tank any fur ther.
AdBlue ®
may possibly leak.
! Surfaces which have com eintoc ontact
with AdBlue ®
while refillin gshould be
rinsed immediately with water, or remove
AdBlue ®
with amoist clot hand cold water.
If AdBlue ®
has alread ycrystallised, us ea
sponge and cold water to clean the area.
AdBlue ®
residue crystallises after acertain
amount of tim eand soils the affected sur-
faces.
! AdBlue ®
is not afuel additive and must
not be added to the fuel tank .IfAdBlue ®
is
added to the fuel tank ,this can lead to
engin edamage.
Further information on
AdBlue ®
(Y page 374). Opening the AdBlue
®
filler cap The filler nec
kfor AdBlue ®
is located behind
the fuel filler flap.
The fuel filler fla pisunlocked or locked auto-
matically whe nyou open or close the vehicle
with the key or using KEYLESS-GO. X
Swit choff the ignition.
X Press the fuel filler fla pinthe direction of
arrow :.
The fuel filler fla pswings up.
X Turn blue AdBlue ®
filler cap ;anti-clock-
wise and remov eit.
AdBlue ®
filler cap ;is secured with aplas-
tic strip.
AdBlue ®
refill canisters AdBlue
®
refill canisters can be obtained at
many filling stations or at aMercedes-Benz
Ser vice Centre. AdBlue ®
refill canis ters are
often sold with afiller hose. Afiller hose that
does not exactly fit the vehicle's AdBlue ®
tan koffers no pro tection agains toverfilling.
AdBlue ®
could leak ou tasar esult of overfill-
ing. Mercedes-Ben zoffers aspecial disposa-
ble hose with overfill protection. You can
obtain this from any Mercedes-Benz Service
Centre. AdBlue ®
is available in avariety of
containers and receptacles. Only use the dis-
posable hos ewith the Mercedes-Benz
AdBlue ®
refill canister s.158
RefuellingDriving and parking
If yo
uthen open one of the front doors or
remove the key from the ignition ,the auto-
matic transmission shift stoP.
If yo ushift the automatic transmission to
N before switching off the engine, the auto-
matic transmission remains in Neven when
ad oor is opened.
Using KEYLESS-GO X
Press the Start/Stop button (Y page 139).
The engin estops and all the indicator
lamp sint he instrumen tcluster go out.
i If you use the Start/Stop button to switch
off the engine, the automatic transmission
shifts to Nautomatically. If you then open
one of the front doors, the automatic trans-
missio nshift stoP .
i The engin ecan be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for three seconds.
This function operates independently of the
ECO start/stop automatic engine switch-
off function. Electric parking brake
General notes i
The electric parking brake carries out a
function check at regular intervals when
the engine is switched off. Noises that
occur are normal. Engaging/releasing manually
X
To engage: push handle :.
The red !indicator lamp in the instru-
ment cluster lights up.
i The electric parking brake can also be
applied when the key is removed.
X To release: pull handle:.
The red !indicator lamp in the instru-
ment cluster goes out.
i The electric parking brake can only be
released when the key in the ignition lock
is in position 1or the ignition is switched
on using the Start/Stop button.
To ensure that you don't roll backwards when
pulling away on an uphill slope, engage the
electric parking brake (Y page 141).
Engaging automatically Your vehicle's electric parking brake is auto-
matically applied if DISTRONIC PLUS or the
HOLD function bring the vehicle to
astand-
still ,ora re engaged to kee pthe vehicle sta-
tionary. In addition, at least one of the follow-
ing condition smust be fulfilled:
R the engine is switched off.
R the driver' sdoor is open and the seat belt
is not fastened.
R the vehicle is stationar yfor alengthy
period.
The red !indicator lam pint he instrument
cluster lights up.
i The electric parkin gbrake is not automat-
icall yengaged if the engine is switched off
by the ECO start/stop function.
Releasing automatically The electric parking brake of your vehicl
eis
release dautomatically when all of the follow-
ing conditions are fulfilled:
R the engine is running.
R the transmission is in position Dor R. Parking
161Drivingand park ing Z
Displa
ymessages Possible causes/consequences and
M Solutions
The display message is only shown while th
evehicl eisinm otion.
The red !indicato rlamp flashes and the yellow !warning
lamp is lit.
It is not possible to apply the electric parkin gbrake manually.
X Shift th etransmission to P.
X Visit aqualified specialist workshop. !
Turn on th
eigni‐ tion to release
the parking brake Th
er ed ! indicator lam pislit.
You attempted to release the electric parkin gbrake whil ethe igni-
tion was switched off.
X Key: turnthe key to position 1in the ignition lock.
X KEYLESS-GO: switchont he ignition. J
Chec
kbrake fluid level G
Ris
kofa ccident
There is insufficien tbrake flui dinthe brake flu idreservo ir.Ina ddi-
tion, the red Jwarning lamp in the instrumen tcluster lights
up and awarning tone sounds.
X Pul lover and stop th evehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv ing
under any circumstances.
X Apply the electric parking brake.
X Consult aqualified specialist worksho p.
X Do not top up the brake fluid. Thi sdoes not correc tthe error. #
Chec
kbrake wear Th
eb rake pa ds/linings have reach edtheir wea rlimit.
X Visit aqualified specialist workshop. PRE-SAFE
inoperativ
eSee Owner's Manual G
Ris
kofi njury
Impor tant functions of PRE-SAFE ®
have failed. All other occupant
safety sys tems,e.g. airbags, remain available.
X Visit aqualified specialist worksho pimmediately. Display mess
ages
259On-boa rd comp uter and displays Z
Displa
ymessages Possible causes/consequences and
M Solutions
&
in
operative See Owner'
sMan. Th
ea uxiliar yheatin ghasatemporary ma lfunction or is faulty.
X When the vehicl eisonalevel surface and the engin ehas cooled
down, make up to four attempts to switch on the auxiliary heat-
ing, waiting several minutes between each attempt
(Y page 130).
X If the auxiliary heating does not switch on, consult aqualified
specialist workshop. Teleph
oneNo Service Your vehicl
eisoutside the network provider's transmitter/
receiver range.
X Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Top
up washer fluid The washe
rfluid level in the washer fluid reservoir has dropped
below the minimum.
X Top up the washer fluid (Y page 321).Key
Display messages Possible causes/consequences and
M Solutions
+
Ke
yd oes not belong to vehicle Yo
uh ave put the wrong key in the ignition lock.
X Use the correct key. +
Replac
ekey Th
ek ey needs to be replaced.
X Visit aqualified specialist workshop. +
Change ke
ybatter‐ ies Th
eb atteries of the KEYLESS-GO key are discharged.
X Change the batteries (Y page 74).+
Ke
yn ot detec‐ ted (re
dd isplay mes-
sage) The KEYL
ESS-GO key is not in the vehicle.
Aw arning ton ealso sounds.
If th eengineiss witched off ,you can no longer loc kthe vehicle
cen trally or start the engine.
X Pull over and stop the vehicle safely as soon as possible ,paying
attention to road and traffic conditions.
X Apply the electric parking brake.
X Locate the KEYLESS-GO key. 282
Display messagesOn-board computer and displays