Page 145 of 346

G
WARNING
Fuel sare toxic andharmfu lto hea lth. There
is arisk ofinjury .
You must avoidfuel scoming intocontact
with skin, eyesand clothes orbei ng swa l-
low ed.
Do not inhal ethe fuel vapo rs.Keep children
awa yfrom fuels.
Keep doors andwindo wsclosed duringthe
refue lingprocess .
If you orothers comeintocontact withfuel,
obse rvethe followi ngpoints:
R Immedi atelyrinse thefuel offyou rskin
with soap andwate r.
R Ifyou getfuel into youreye s,immed iately
rinse youreye sthrough lywith clean
water .Seek medicalattention immedi-
ately .
R Seek medicalattention immediatelyif fuel
has been swallowed .Do not indu cevomit-
ing.
R Immedi atelychange outofclothing which
has come intocontact withfuel. G
WARNING
Electrostatic chargingcan leadto the crea-
tion ofspar ksand ignite fuelvapo r.There is
a risk offire and explo sion.
Tou chthe metall icbody ofthe vehicl e
before youopen thefuel filler cap orhandl e
the pump nozzle. Anypossi bleelectrosta tic
charge presentwil lin this way bedepl eted.
Do not getinto thevehicl eaga induri ngthe
refue lingprocess .Otherwi se,electrosta tic
charge couldbui ldup aga in.
! Do
not use diesel torefue lvehicl eswith a
gaso lineengine. Donot switch onthe igni-
tion ifyou accide ntallyrefuelwith thewrong
fuel .Otherwi se,the fuel willenter thefuel
system. Evensmallamou ntsofthe wrong
fuel couldresu ltin dama getothe fuel sys-
tem andtheengine. Notifyaqua lified spe-
cial istworksho pand have thefuel tank and
fuel lines drained comple tely. !
Overfil
lingthefuel tank coulddama gethe
fuel system.
! Take
carenottospil lany fuel onpainted
surfa ces.Youcouldotherwi sedama gethe
pai ntwork.
! Use
afilter when addingfuel from afuel
can. Thefuel lines and/or thefuel injection
system couldotherwi sebe blocked byparti-
cles from thefuel can.
Do not getinto thevehicl eaga induri ngthe
refue lingprocess .Otherwi se,electrosta tic
charge couldbui ldup aga in.
If you overfil lthe fuel tank, fuelcouldspra y
out when thefuel pump nozzle isremoved .
For further informati ononfuel andfuel quality
(Y pag e335). Refuel
ing
Gene ralinfo rmation Pay
attention tothe importa ntsafety notes
(Y pag e142) .
The fuel filler flap isunlocked /lockedautomat-
ical lywhen youunlock/lo ckthe vehicl ewith
the SmartKey .
The position ofthe fuel filler cap isdisp layed
00D4 inthe instrument cluster.Thearrow on
the filling pump indicatesthe side ofthe vehi-
cle. On
the insid eof the fuel filler cap, youwillfind
informati ononthe recommende dfuel . Refuel
ing
143Drivingand parking Z
Page 146 of 346

Opening
thefuel filler flap 0043
Toopen thefuel filler flap
0044 Tire pressure table
0087 Toinsert thefuel filler cap
0085 Instruct ionlabel forfuel type tobe refu-
eled
X Switc hoff the engine .
X Remove theSmart Keyfrom theignition
lock.
or, invehicles withKEYLE SS-GO start -function
or KEYLE SS‑GO
X Open thedriver's door.
The vehicle electronics arenow inposition
005A. This isthe same asthe Smart Keyhaving
been removed.
X Press thefuel filler flapinthe direct ionof
arrow 0043.
The fuel filler flapswings up. X
Turn thefuel filler capcount er-clockwise
and remove it.
X Inser tthe fuel filler capinto theholder on
the inside offuel filler flap0087.
X Completely insertthefiller neck ofthe fuel
pump nozzleinto thetank ,hook inplace
and refuel.
X Only fillthe tank untilthepump nozzle
switches off.
i Do
not add anymore fuelafter thepump
stops fillingforthe first time. Otherwise, fuel
may leakout.
Closing thefuel filler flap X
Replace thecap onthe filler neck andturn
clock wiseuntilitengages audibly.
X Close thefuel filler flap.
Close thefuel filler flapbefore lockingthe
vehicle.
If you aredriving withthefuel filler capopen,
the 00B6 reserv efuel warning lampflashes. A
message appearsinthe multifunc tiondisplay
(Y page 219).
In addition, the00B9 Check Engine warning
lamp maylight up(Ypage 239).
For furth erinfor mation onwarning andindica-
tor lamps inthe instrument cluster,see
(Y page 239). 144
RefuelingDriving
andparking
Page 339 of 346

!
Never
refuelusing:
R Diesel
R Regu largasoli newith anoctane number
lower than91RON
R Gasol inewith more than10vol. %etha-
nol, e.g. E15, E20, E85,E100
R Gasol inewith more than3vol. %metha-
nol, e.g. M15, M30
R Gasol inewith metalliferou sadditives
If you accidentally refuelwiththewrong
fuel:
R Do not switch theignition on
R Consult aqual ified speciali stworkshop.
Do not mix such fuels withthefuel recommen-
ded foryour vehicle.
In accordance withEuropean standardEN
16942, youcan find thefollowi ngcompatibili ty
label sfor fuel:
R on the instruction labelonthe fuel filler flap
of your vehicle
R on the fuel pump orpump nozzlefor your
vehicle, throughout Europe 0043
For gasoli newith amaximum ethanolcon-
tent of5% by volume
0044 For gasoli newith amaximum ethanolcon-
tent of10 %by volume
! Damage
tothe emission controlsystem
caused byfuel with excessive sulfurcontent
R Only usesulfur-free fuel(sulfu rcont ent≤
10 ppm ). i
In
some countries, theavail able gasoli ne
may notbesufficiently lowinsulfur. This
fuel cantemporarily produceunpleasa nt
odors, especial lyon short journeys. Assoon
as sulfur-free fuel(sulfu rcont ent<10 ppm)
is used forrefueling, theodors arereduced.
CLA 200, CLA250, CLA2504MATIC,
CLA 250Sport, CLA250Sport 4MATIC: asa
temporary measure,ifthe recommended fuel
is not avail able, youmay alsouseregula r
unleade dgasoli newith anoctane ratingof
93 RON.
i The
fuels youcan useinyour vehicle may
differ fromtheinformation inthe Operator's
Manual depending onthe country. Thefuels
that have been approved foryour vehicle
can befound onthe instruction labelonthe
inside ofthe fuel filler flap.
Additives ! Operating
theengine withfueladditives
added latercanlead toengine failure.Do
not mix fuel additives withfuel. Thisdoes
not include additives forthe removal and
prevention ofresidue buildup. gasoli nemust
only bemixed withadditives recommended
by Mercedes-Benz .Comply withtheinstruc-
tions foruse onthe product label.More
information aboutrecommended additives
can beobtained fromanyauthorized
Mercedes-Benz Center.
Mercedes-Benz recommendsthatyouuse
branded fuelsthathave additives.
The fuel qualityavail able insome countries
may notbesufficient. Residuecould buildup
in the fuel inject ionsystem asaresult. Insuch
cases, andinconsultation withanauthorized
Mercedes-Benz Center,thefuel may bemixed
with thecleaning additiverecommended by
Mercedes-Benz .You must observe thenotes
and mixing ratiosspecified onthe cont ainer. Service
productsand fillingcapacities
337Technicaldat a Z