2018 MERCEDES-BENZ CLA COUPE fuel pump

You must make sure that fuel does not comeint oc ontac twith your skin ,eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors.K eep fuel away from children.
If you or others com eintoc ontac twith fuel,
observet he following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes int ocontac twith your eyes,
immediately rinse the mthoroughly with
clean water. Seek medical assistanc ewith-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induc evomit-
ing.
RImmediately change out of clothing which
has com eintoc ontac twith fuel.
GWARNING
Electrostatic buildup can create sparksa nd
ignit efuel vapors.T here isarisk of fire and
explosion.
Always touc hthe vehicle body beforeo pening
the fuel filler flap or touching the fuel pump
nozzle. An yexisting electrostatic buildup is
thereby discharged.
!Do not use diesel to refuel vehicles with a
gasolinee ngine. Do not switc honthe ignition
if you accidentally refuel with the wrongf uel.
Otherwise, the fuel will enter the fuel system. Even small amount softhe wrongf uel could
result in damage to the fuel syste mand the
engine. Notify aqualified specialis tworkshop
and have the fuel tan kand fuel lines drained
completely.
!Overfilling the fuel tan kcould damage the
fuel system.
!Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
!Use afilter when adding fuel from afuel can.
The fuel lines and/or the fuel injection system
could otherwise be blocked by particles from
the fuel can. Do not get int
othe vehicle again during the refu-
eling process. Otherwise, electrostatic charge
could build up again.
If you overfill the fuel tank, fuel could spray out
when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
(
Ypage 315).
Refueling
Genera linformation
Pay attention to the importan tsafetyn otes
(Ypage 138).
The fuel filler flap is unlocked/locked automat-
ically when you unlock/lock the vehicle with the
SmartKey.
The position of the fuel filler cap is displayed
æ in the instrumentc luster. The arrow on the
filling pump indicates the side of the vehicle.
Opening th efuel filler flap
:To open the fuel filler flap
;Tire pressure table
=To inser tthe fuel filler cap
?Instruction label for fuel type to be refueled
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS‑ GO
XOpen the driver's door.
The vehicle electronics are now in position
g.This is the same as the SmartKey being
removed from the ignition.
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
Refueling139
Driving and parking
Z

XTurn the fuel filler cap counterclockwise and
remove it.
XInsert the fuel filler cap into the holder on theinside of fuel filler flap =.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank ,hook in place and
refuel.
XOnly fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump stops
filling for the first time. Otherwise, fuel may leak
out.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap. Close the fuel filler flap before lockingt
he vehi-
cle.
If you are driving with the fuel filler cap open, the
8 reserve fuel warning lamp flashes. Ames-
sage appears in the multifunction display
(
Ypage 206).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 224).
For further information on warning and indicator
lamps in the instrument cluster, see
(
Ypage 224).
Problems with fuel and the fuel tank
ProblemPossible causes/consequences and MSolutions
Fuel is leaking from the
vehicle.The fuel line or the fuel tank is faulty.
GWARNING
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function or KEYLESS ‑GO
XOpen the driver's door.
The vehicle electronics are now in positiong.This is the same as
the SmartKey being removed from the ignition.
XDo not restart the engine under any circumstances.
XConsult aqualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 70).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 77).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult aqualified specialist workshop.
140Refueling
Driving and parking

Do not mix such fuelswitht he fuel recom-
mended for your vehicle.
!To ensur ethe longevity and full perform-
ance of the engine ,onlyp remium-grade
unleade dgasoline must be used.
If standard unleade dgasoline is unavailable
and yo uhavetor efuelwithu nleade dgasoline
of alower grade ,observe the following pre-
cautions:
ROnlyf illt he fuel tank to half full with regular
unleade dgasoline and fil lthe res twithp re-
mium-grad eunleade dgasoline as soo nas
possible.
RDo not drive at the maximum speed.
RAvoi dsudde nacceleratio nand engine
speeds ove r3,000 rpm.
Yo uw illu sually find informatio nabout the fuel
grade on the fuel pump. If yo ucanno tfind the
labe lont he fuel pump, as kthe gass tationstaff.
iFor furtheri nformation, consul taqualified
specialis tworkshop or visit
http://www.mbusa.com (USA only).
CL A2 50,CLA 250S port, CL A2504MATIC,
CL A2 50Sport 4MATIC: asatemporary meas-
ure, if the recommende dfuelisn ot available,
yo um ayalso us eregular unleade dgasoline with
an octane rating of 88 AKI /93 RON.
All othe rmodels: asatemporary measure, if
the recommende dfuelisn otava
ilable, yo
umay
also us eregular unleade dgasoline with an
octane rating of 87 AKI/91 RON. Thi smay
reduce engine performance and increase fuel
consumption. Avoi ddrivin gatf ullt hrottle and
sudden acceleration. Never refue lusing gaso-
line with alower AKI.
Informatio nonrefueling (
Ypage 139).
Additives
!Operating the engine with fuel additives
adde dlater can lead to engine failure. Do not
mix fuel additive swithf uel. Thisd oesn ot
includ eaddit ivesfor the remova land preven-
tio nofr esidue buildup. gasoline must onl ybe
mixed with additive srecommende dby
Mercedes-Benz. Compl ywitht he instructions
for us eonthe product label. Mor einformation
abou trecommende daddit ivesc an be
obtained froma ny authorizedMercedes-Benz
Center.
Mercedes-Benz recommends thaty ouuseb ran-
de df uels thath avea ddit ives. The fuel quality availabl
einsomecountries may
not be sufficient. Residu ecould buil dupinthe
fuel injectio nsystem as aresult. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel maybem ixed
with the cleaning additive recommende dby
Mercedes-Benz. Yo umusto bserve the notes
and mi
xing ratio sspecifie dont he container.
Engine oil
General notes
!Do not us eengine oi lorano ilfilter with
specifications deviating fromt hoseexpressly
required for the prescribe dservic eintervals.
Do not change the engine oi loroilfilter in
order to set replacement intervals longe rthan
thos eprescribed. Thi scould otherwis ecause
damage to the engine or exhaust gasa fter-
treatment.
Follo wthe instructions on the servic einterval
displa yfor changing the engine oil. Thi scould
otherwis ecause damage to the engine or
exhaust gasa ftertreatment.
When handling engine oil, observe the important
safety note sonserviceproducts (
Ypage 315).
The engine oils ar ematchedtot he performance
of Mercedes-Benz engine sand servic eintervals.
Yo us houl dtherefore onl yuseengine oils and oil
filters thata reapproved for vehicles with main-
tenance systems.
For alistofa pproved engine oils and oi lfilters,
consul tanauthorize dMercedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle.
Service products and filling capacities317
Technical data
Z