
Diesel pa
rticulate filter Note
s onrege neration &
DANG ER Risk of fata l injuries due to
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and can lead topoisoning. #
Never lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation. &
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. If
th eve hicle is predominantly used for short dis‐
ta nce driving or extended non-operational times,
th is could lead toa malfunction in the automatic
cleaning function forth e diesel particulate filter.
As a result, permanent blocking of the diesel par‐
ticulate filter may occur and fuel may also accu‐
mulate in the engine oil and cause engine failure.
If yo u main lydrive short dis tances, you should
drive on a free way or go for a country drive for 20
minutes every500 km (300 miles). This facili‐
ta testh e diesel particulate filter's burn-off proc‐
ess.
* NO
TEDama gedue tohot exhaust gases During
rege neration, extremely hot exhaust
ga ses escape from theta ilpipe. #
During rege neration, maintain a mini‐
mum di stance of 7 ft(2 m) from other
objects, e.g. par kedve hicles. Battery main switch
Note
s onthe bat tery main switch *
NO
TEDama getothe electrical sy stem If
yo ure mo veor disconnect the battery main
switch, it could lead tothe electrical sy stem
becoming damaged. #
Make sure that the ignition is switched
off and that at least 15minutes ha ve
passed before removing or reconnecting
th e battery main switch. Otherwise,
electrical sy stem components could be
damaged. Yo
u can use the battery main switch todiscon‐
nect the cur rent toall your vehicle's consumers.
This will pr event uncontrolled battery discha rge
caused byquiescent cur rent consumers.
If yo ur vehicle is equipped with an auxiliary bat‐
te ry inthe engine compartment or in the base of
th e front-passen ger seat, you must disconnect
bo th batteries. Only then is the electrical sy stem
fully disconnected from the po wer supply.
% Only disconnect theve hicle from the po wer
supply using the battery main switch in the
fo llowing situations:
R The vehicle is stationary for a long time
R It is absolutely necessary todisconnect
th eve hicle from the po wer supply
Af ter switching on the po wer supp ly,yo u will
need toreset the side windo ws (/page 53)
and the electric sliding door (/ page 49). Switching
the po wer supply on/o ff Switching off
the po wer supply 11 4
Driving and pa rking

#
Switch off the ignition and wait at least
15 minutes. #
Remo vecover1. #
Press and hold button 3.#
Pull plug 2out of the ground pin. #
Push plug 2asfar as possible in the direc‐
tion of the ar row sothat it cannot make con‐
ta ct wi th the ear thpin.
All star ter battery consumers are disconnec‐
te d from the po wer supp ly.
Switching on the po wer supply #
Press plug 2onto the ground pin until you
fe el it engage and plug 2is in full contact
with the ground pin.
All star ter battery consumers are reconnec‐
te dto the po wer supply. #
Fasten co ver1. Au
tomatic transmission DIRECT SELECT le
verFu
nction of the DIRECT SELECT le ver&
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic. R
operate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hicle
in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005D.
R starting the engine #
Never 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. #
Keep the SmartK eyout of there ach of
ch ildren. &
WARNING Risk of accident due toincor‐
re ct gearshifting
If th e engine speed is higher than the idle
speed and you engage the transmission posi‐
tion 005Bor005E, theve hicle may accelerate
sharply. #
Ifyo u engage the transmission position
005B or005E always depress the brake
pedal firm lyand do not accelerate at
th e same time. Yo
u use the DIRECT SELECT le verto switch the
transmission position. The cur rent transmission
position appears in the multifunction displa y. 005D
Park position
005E Reversege ar
005C Neut ral
005B Drive position Driving and pa
rking 11 5

*
NO
TEDo not use diesel torefuel vehicles
with a gasoline engine. If
yo u acciden tally refuel with the wrong fuel:
R Do not switch the ignition on. Otherwise
fuel can enter the engine.
Even small amounts of the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. #
Consult a qualified specialist workshop. #
Have the fuel tank and fuel lines drained
comple tely. *
NO
TEDo not use gasoline torefuel vehi‐
cles with a diesel engine. If
yo u acciden tally refuel with the wrong fuel:
R Do not switch the ignition on. Otherwise,
fuel can enter the fuel sy stem.
Even small amounts of the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. #
Consult a qualified specialist workshop. #
Have the fuel tank and fuel lines drained
comple tely. *
NO
TEDama getothe fuel sy stem caused
by ove rfilled fuel tanks. #
Only fill th e fuel tank until the pump
nozzle switches off. *
NO
TEFuel may spr ayout when you
re mo vethe fuel pump nozzle. #
Only fill th e fuel tank until the pump
nozzle switches off. *
NO
TEDama getopainted sur faces due to
fuel #
Do not spill any fuel on painted sur fa‐
ces. +
ENVI
RONMENTAL NOTEEnvironmental
damage due toimproper handling of fuel If fuels are handled improperly,
they pose a
danger topersons and the environment. #
Do not allow fuels torun into the sew‐
age sy stem, the sur face wate rs,the
ground water or into the ground. Re
quirements:
R The vehicle is unloc ked.
R The auxiliary heating is deactivated.
R The ignition is switched off
R The front left-hand door is open.
% Do not
get ba ckinto theve hicle during the
re fueling process. Otherwise, electros tatic
ch arge could build up again.
Obser vethe no tes on operating fluids
(/ page 263). 1
Fuelfiller flap
2 Fuelfiller cap
% The fuel
filler flap is beside the front left-hand
door when vie wed in the direction of tr avel.
The position of the fuel filler cap 00D4is also
shown in the Instrument Displa y.The ar row
on thefilling pump specifies the side of the
ve hicle. #
Open fuel filler flap 1. #
Turn fuel filler cap 2coun ter-clockwise and
re mo veit. #
Close all vehicle doors topreve nt fuel vapors
from entering theve hicle interior. #
Comple tely slide thefiller neck of the pump
nozzle into theta nk, hook in place and refuel. #
Fillthe fuel tank only until the pump nozzle
switches off. #
Replace fuel filler cap 2and turn it clock‐
wise.
Yo u will hear a click when the fuel filler cap is
closed full y. #
Open the front left-hand door. #
Close fuel filler flap 1. 12 6
Driving and pa rking

Ad
ding DEF
* NO
TEEngine damage due toDEF being
in the fuel #
DEF must not be used tofill th e fuel
ta nk. #
Only use DEF tofill th e DEF tank. #
Do not overfill the DEF tank. *
NO
TEContamination of theve hicle inte‐
ri or due toDEF leakage #
After adding, careful lyclose the DEF
re fill con tainer. #
Avoid car rying DEF refill con tainers per‐
manently in theve hicle. Re
quirements:
R The ignition is switched off
The following messages that appear in succes‐
sion in the multifunction display indicate that you
need torefill th e DEF tank:
R Refill Additive See Operator's Manual
The DEF tank has fallen below thefirs twa rn‐
ing thre shold.
R Refill Additive Starts until Emerg. Op.: XXX
See Operator's Manual
The DEF supply has fallen below there ser ve
mar k.
Af terth e message appears forth efirs t time,
th ere maining DEF supp lywill last for appro x‐
ima tely 1,200 miles (1,900 km). The engine
can then only be star ted ano ther 16 times.
The number of remaining engine starts XX(16
to 1) is shown in the message everytime the
engine is star ted.
R Refill Additive Emergency Op.: XXX mph See
Operator's Manual
You can only drive theve hicle at a maximum
speed of 5 mph (8 km/h).
Yo u can also ha vethe DEF fill le vel and the DEF
ra nge displ ayed (/ page128). Opening
the DEF filler cap on filler caps that
are not loc kable #
Open the hood. #
Turn DEF filler cap 1coun ter-clockwise and
re mo veit.
Opening the DEF filler cap on loc kable filler
caps #
Open the hood. #
Take tool 4 for unlocking DEF filler cap 1
from theve hicle tool kit. Driving and parking
12 9

#
Pull co ver3 on DEF filler cap 1up, turn
90° and release. #
Insert tool 4 in holes 2of DEF filler cap
1. #
Turn DEF filler cap 1coun ter-clockwise and
re mo veit.
Preparing the DEF refill canis ter Va
riant 1 Va
riant 2 #
Unscr ewthe cap on DEF refill canis ter2. #
Screw disposable hose 1onto the opening
of DEF refill canis ter2 until hand-tight. Ad
ding DEF Va
riant 1 Va
riant 2 #
Screw disposable hose 2onto thefiller neck
of theve hicle until hand-tight. #
Lift up and tip DEF refill canis ter1.
The filling process stops when the DEF tank is
comple tely full.
DEF refill canis ter1 can be remo ved when it
has been only partially em ptied. #
Unscr ewdisposable hose 2and close DEF
re fill canis ter1 inreve rse order. #
Switch on the ignition for at least 60 seconds. #
Start theve hicle.
% Av
oid storing DEF containers permanent lyin
th eve hicle.
DEF refill bottle
Only scr ewthe DEF refill bottle hand-tight onto
th efiller opening in the engine compartment. It
may otherwise be damaged. 13 0
Driving and pa rking

DEF
refill bottles 1can be obtained at many gas
st ations or at a qualified specialist workshop.
Re fill bottles without a thre aded cap of fer no
ove rfill pr otection. DEF may leak out as a result
of ove rfilling. Mercedes-Benz of fers special refill
bottles with a thre aded cap. These are available
at any authorized Mercedes-Benz Center. #
Unscr ewthe pr otective cap from DEF refill
bottle 1. #
Place DEF refill bottle 1as shown on filler
opening 2and scr ewit on clockwise until
hand-tight. #
Press DEF refill bottle 1towa rdsfiller open‐
ing 2.
The DEF tank is filled. This could take up to
one minute.
% When
the DEF refill bottle is no longer
pressed down, filling stops. The bottle can be
re mo ved when it has been only partially emp‐
tied. #
Release DEF refill bottle 1. #
Turn DEF refill bottle 1coun ter-clockwise
and remo veit. #
Screw the pr otective cap onto DEF refill bot‐
tle 1 again.
Fi lling procedure with the pu mpnozzle of an
DEF filling pump #
Insert the pump nozzle into thefiller neck and
add DE F.When doing so, do not overfill the
DEF tank.
Closing the DEF filler cap on filler caps that
are not loc kable #
Afterfilling the DEF tank, place DEF filler cap
1 onthefiller neck and tigh ten it clo ckwise. #
Turn the DEF filler cap until the lettering is
legible and horizontal.
The filler neck is only loc ked cor rectly when
th is is the case. #
Close the hood. Driving and parking
131

Closing
the DEF filler cap on loc kable filler
caps #
Afterfilling the DEF tank, place DEF filler cap
1 onthefiller neck and tigh ten it clo ckwise. #
Remo vetool 4 from DEF filler cap 1and
st ore it in theve hicle tool kit. #
Pull co ver3 on DEF filler cap 1upover
holes 2of DEF filler cap 1, turn and
re lease. #
Turn DEF filler cap 1.
If DEF filler cap 1turns freel y,the DEF tank
is closed. Park
ing Pa
rking theve hicle &
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 unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R operate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hicle
in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005D.
R starting the engine #
Never 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. #
Keep the SmartK eyout of there ach of
ch ildren. *
NO
TEDama getotheve hicle or the drive‐
train due torolling away #
Always park your vehicle safely and
according tolegal requirements. #
Always proper lysecure theve hicle
against rolling away. &
WARNING Risk of accident and injury if
pa rking brake is not applied
If yo u park theve hicle with the transmission
in park position 005Dand the parking brake is
not engaged, theve hicle may rollaw ay.
Engaging pa rkposition 005Dis not a fully ade‐
qu ate replacement forth e parking brake.
There is a risk of accident and injur y. #
Secu retheve hicle against rolling away
as desc ribed belo w. 13 2
Driving and pa rking

Pe
rforming emer gency braking with the hand‐
brake le ver If, in
exceptional cases, the service brake fails,
yo u may use the parking brake toper form emer‐
ge ncy braking. #
Eme rgency braking: press and hold release
button 2and carefully pull brake le ver1. Electric parking brake
Note
s onthe electric pa rking brake &
WARNING Risk of accident and inju ry
due tochildren and animals left unat ten‐
ded in theve hicle
If yo u lea vechildren and animals unat tended
in theve hicle, they may be able toset the
ve hicle in motion, forex ample by:
R Releasing the parking brake.
R Shifting the automatic transmission out of
park position 005D.
R Starting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped. #
Never 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. Fo
rth e automatic functions towo rkcor rectl y,the
driver must be seated in the cor rect seat position
(/ page 59).
The function of the electric parking brake is
dependent on the on-board electrical sy stem volt‐ age. If
the on-board electrical sy stem voltage is
low or there is a malfunction in the sy stem, it
may not be possible toapply the electric parking
brake and theye llow 0024 indicator lamp lights
up.
In this case, park theve hicle in thefo llowing way:
R Park theve hicle on le velground and secure it
to prev ent it from rolling away.
R Ve
hicles with automatic transmission:
shift the transmission toposition 005D.
% The electric parking brake is only actually
applied when
there d0049 and0024 (USA)
or 0024 (Canada) indicator lamps light up
continuousl y.
It may not be possible torelease a parking brake
if th e on-board electrical sy stem voltage is low or
if th ere is a malfunction in the sy stem. Inform a
qu alified specialist workshop. When the engine is
switched off, the electric parking brake car ries
out a function test at regular inter vals. Noises are
normal in this process.
Au tomatically applying the electric parking
brake
Ve hicles with automatic transmission:
The electric parking brake is auto matically
applied when the transmission is in position 005D.
In addition, at least one of thefo llowing condi‐
tions must be fulfilled:
R the engine is switched off
R the driver is not sitting in the driver's seat
R the belt buckle is undone To
prev ent the electric parking brake from apply‐
ing automaticall y,pull switch 1. 134
Driving and pa rking