fuel cap MERCEDES-BENZ E-CLASS SALOON 2021 Owners Manual

#
Change immediately out of clo thing that
has come into contact with fuel. &
W
W ARNING
ARNING Risk of /re and explosion due
to electrostatic charge
Electrostatic charge can ignite fuel vapour. #
Before you open the fuel /ller cap or
ta ke hold of the pump nozzle, touch the
me tallic vehicle body. #
Toavo id creating ano ther electrostatic
ch arge , do not get into theve hicle again
during there fuelling process. &
W
W ARNING
ARNING Risk of /re from fuel mixture
Ve hicles with a diesel engine:
If yo u mix diesel fuel with petrol, the 0ash
point of the fuel mixture is lo werth an that of
pure diesel fuel.
While theve hicle is running, component parts
in theex haust system may overheat without
wa rning. #
Neverre fuel using petrol. #
Never mix petrol with diesel fuel. *
N NOOTE
TE Damage caused bythe wrong fuel Ve
hicles with a petrol engine:
Even small amounts of the wrong fuel could
re sult in damage tothe fuel system, the
engine and the emission control system. #
Only refuel using unleaded, sulphur-free
spar k-ignition engine fuel that conforms
to European EN 228, or an equivalent
speci/cation.
Fu el of this speci/cation may contain up to
10% ethanol. Your vehicle is suitable for use
with E10 fuel.
Ne verre fuel wi thone of thefo llowing fuels:
R Diesel
R Regular petrol with an octane number
lo we rth an 91 RON R
Petrol with more than 10% ethanol byvol-
ume, e.g. E15, E20, E85, E100
R Petrol with more than 3% me thanol byvol-
ume, e.g. M15, M30
R Petrol with additives containing me tal
If yo u ha veacciden tally refuelled wi th the
wrong fuel: #
Do not switch on theve hicle. #
Consult a quali/ed specialist workshop. *
N NOOTE
TE Damage caused bythe wrong fuel Ve
hicles with a diesel engine:
Even small amounts of the wrong fuel could
re sult in damage tothe fuel system, the
engine and the emission control system. #
Only refuel using sulphu r-free diesel fuel
th at conforms toEuropean standard
EN 590, or an equivalent speci/cation.
In count ries without sulphur-free diesel
fuel, refuel using only lo w-sulphur diesel Driving and parking
191
191

%
Do not getinto theve hicle again during the
re fuelling process. Othe rwise, electrostatic
ch arge could build up again.
Obser vethe no tes on operating 0uids and fuel.
The recommended octane number foryo ur vehi-
cle can be found on the information label in the
fuel /ller 0ap.
Depr
Depr essur
essur ising t
ising t he fuel t
he fuel t ank (plug-in h
ank (plug-in h ybr
ybrid)
id) #
Pull but ton1.
Indica tor lamp 20ashes and thePlease
wait Depressurising tank message appears in
th e Instrument Displa y.
When the fuel tank is dep ressurised, indicator
lamp 2lights up continuousl y.
The Tank is depressurised Ready for refuel-
ling messa geappears in the Instrument Dis-
pla y.
% Inthefo llowing situations there is a malfunc-
tion:
R indicator lamp 20ashes initially and then
goes out
R theye llow 00B9 engine diagnosis warning
lamp lights up
The fuel tank can only be bled if the conditions
mentioned abo veare ful/lled. Otherwise, drive the
ve hicle at least 0.5 km and repeat the procedure.
% Opening the fuel /ller 0ap ma y,in exceptional
cases, take up to15 minutes. 1
Fuel /ller 0ap
2 Brac ketfo r fuel /ller cap
3 Tyre pressure table
4 QR code forre scue card
5 Fuel type #
Press on the back area of fuel /ller 0ap 1. #
Turn the fuel /ller cap anti-clockwise and
re mo veit. Driving and parking
193
193

#
Insert the fuel /ller cap from abo veinto
brac ket2. #
Comple tely insert the pump nozzle into the
ta nk /ller nec k,hook in place and refuel. #
Only /ll the fuel tank until the pump nozzle
switches o..
% V Vehicles wit ehicles wit h a diesel engine:
h a diesel engine: theta nk /ller
neck is designed forre fuelling at diesel /lling
pumps.
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: whenthe fuel
ta nk is comple tely em pty, top up with at least
5 litres of diesel.
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: use a /ller neck
with a lar gediame terfo rve hicles with a diesel
engine when topping up fuel from a fuel can.
Otherwise, the /ller neck cannot slide into the
ta nk. #
Replace the cap on the /ller neck and turn
clockwise until it engages audibl y.#
Close fuel /ller 0ap 1. A
A
dBlue
dBlue ®
®
(v
(vehicles wit
ehicles wit h a diesel engine onl
h a diesel engine onl y)
y) N
No
ot
tes on
es on r
re/lling
e/lling A
AdBlue
dBlue ®
®
Ad Blue ®
is a water-soluble 0uid forth e NOx
ex haust gas aTertreatment of diesel engines. In
order forth eex haust gas aTertreatment tofunc-
tion proper ly, only use AdBlue ®
in acco rdance
with ISO 22241.
Ad Blue ®
is ch aracterised bythefo llowing:
R non-t oxic
R colourless and odourless
R non-0ammable
If yo u open theAd Blue ®
tank, small amounts of
ammonia vapour may be released. Only /ll the
Ad Blue ®
tank in well-ventilated areas.
Do not let AdBlue ®
come into contact wi thskin,
ey es or clo thes. Keep AdBlue ®
awa y from chil-
dren.
Do not ingest AdBlue ®
. If AdBlue ®
is swallo wed,
immediately rinse your mouth out thoroughl y.
Drink plenty of water. Seek medical at tention at
once. Obser
vethe no tes on operating 0uids
(/ page 417).
Ad Blue ®
is available here:
R AdBlue ®
can be topped up byfast service at a
quali/ed specialist workshop, e.g. a
Mercedes-Benz Se rvice Centre.
R AdBlue ®
is available at many /lling stations
from AdBlue ®
/lling pumps.
R Alternati vely,Ad Blue ®
is available at quali/ed
specialist workshops, e.g. Mercedes-Benz
Se rvice Centres, and at many /lling stations in
Ad Blue ®
re/ll canis ters or AdBlue ®
re/ll bot-
tles.
% Ensure the connection between there /ll con-
ta iner and vehicle /ller neck does not drip.
T
T opping up A opping up A dBlue
dBlue®
®
* NO
NOTE
TEEngine damage due toAd Blue ®
being in the fuel #
AdBlue ®
must not be used to/ll the fuel
ta nk. 194
194
Driving and parking

#
Only use AdBlue ®
to /ll theAd Blue ®
ta nk. #
Do not over/ll theAd Blue ®
tank. *
N
NO OTE
TE Contamination of theve hicle inte-
ri or due toAd Blue ®
lea kage #
ATer topping up, carefully close the
Ad Blue ®
re/ll con tainer. #
Avoid car rying AdBlue ®
re/ll con tainers
permanently in theve hicle. R
R
eq
eq uir
uir ements:
ements:
R The vehicle is unloc ked.
The following message s appear in order in the
Instrument Displ aywhen theAd Blue ®
tank
re qu ires topping up:
R Refill AdBlue See Owner’s Manual The
Ad Blue ®
leve l has fallen below there ser ve
ra nge. Top up AdBlue ®
immediatel y.
R Top up AdBlue Emergency op. in XXX miles
See Owner's ManualThe low AdBlue ®
level
will lead tolimited per form ance aTer the re
maining distance displa yed has been driven.
To p up AdBlue ®
immediatel y.
R XX,X l Top up AdBlue Emer. op.: max. XXX
km/h Start not poss. in XXX kmThe low
Ad Blue ®
leve l will lead tolimited per form ance
from the speed displa yed. ATer there maining
distance displa yed has been co vered, it will no
longer be possible tostart theve hicle. Top up
with at least the amount of AdBlue ®
displa yed.
R XX,X l Top up AdBlue Switch on ignition, wait
60 sec. or eng. start not poss. TheAdBlue ®
ta nk is em pty. Yo u can no longer start the
ve hicle. Top up with at least the amount of
Ad Blue ®
displa yed. Switch on theve hicle and
wa itfor appr oximately 60 seconds. Start the
ve hicle.
Yo u can see theAd Blue ®
range and le vel in the
Service menu in the Instrument Displa y.
% The AdBlue ®
range sh own depends strongly
on the driving style and operating conditions.
The actual range can therefore deviate from
th e calculated range. Opening t Opening t
he A he AdBlue
dBlue ®
®
/ller
/ller cap
cap #
Press on the back area of fuel /ller 0ap 1. #
Turn AdBlue ®
/ller cap 2anti-clockwise and
re mo veit.
T
T opping up A
opping up A dBlue
dBlue®
®
Mercedes-Benz recommends topping up AdBlue ®
at a /lling pump. If no AdBlue ®
/lling pump is Driving and pa
rking
195
195

av
ailable, you can also top up AdBlue ®
using a
canister. #
Screw onthefa stener of AdBlue ®
re/ll canis-
te r4. #
Screw disposable hose 3onto the opening
of Ad Blue ®
re/ll canis ter4 until hand-tight. #
Screw disposable hose 3onto the /ller neck
of theve hicle until hand-tight. #
LiT up and tip AdBlue ®
re/ll canis ter4.
The /lling process stops when theAd Blue ®
ta nk is comple tely full. Ad
Blue ®
re/ll canis ter4 can be remo ved
when it has been only partial lyem ptied. #
Unscr ewand close disposable hose 3and
Ad Blue ®
re/ll canis ter4 inreve rse order. #
Replace AdBlue ®
/ller cap 2and turn it
clo ckwise until it audibly engages. #
Close fuel /ller 0ap 1. #
Switch on theve hicle for at least 60 seconds.
% Ifth eve hicle could not be star ted as the
Ad Blue ®
tank was em pty, it can take up to
60 seconds forth ere /ll tobe de tected. #
Start theve hicle.
% Avoid storing AdBlue ®
re/ll con tainers perma-
nently in theve hicle. Char
Char
ging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery (plug-in
y (plug-in
h
h ybr
ybr id)
id) N
No
ot
tes on t
es on t he high-v
he high-v olt
oltag
age batt
e batt ery
ery *
N
NOOTE
TE High-voltage battery damage due to
leaving theve hicle idle for lengt hyperiods
of time Lithium-ion batteries
experience a natural self-
dischar ge.
Exhausti vedischarging can therefore occur if
th eve hicle is idle for se veral months. This can
damage the high-voltage batter y. #
Toavo id damage, please obser vethefo l-
lowing recommendations when handling
th e high-voltage batter y. *
N
NO
O TE
TE Accelerated ageing of the high-volt-
age battery As a
result of its basic characteristics, the
storage capacity of and the amount of energy
av ailable from the high-voltage battery decrea-
ses over the course of its life. Due tothis, bo th 196
196
Driving and parking

&
W
W ARNI NG
ARNI NGRisk of burns when opening the
bonnet
If yo u open the bonnet in theev ent of an over-
heated engine or /re in the engine compart-
ment, thefo llowing situations may occur:
R You may come into contact with hot gases.
R You may come into contact with other
escaping hot operating 0uids. #
Before opening the bonnet, allow the
engine tocool down. #
Intheev ent of a /re in the engine com-
partment, keep the bonnet closed and
call the /re service. &
W
W ARNING
ARNING Risk of injury due tomoving
parts
Components in the engine compartment may
continue torun or start unexpectedly even
when the drive system is switched o..
Obser vethefo llowing if you must open the
bonnet: #
Switch o. theve hicle. #
Neverto uch the danger zones sur round-
ing moving components, e.g. thero tation
area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving pa rts. &
W
WARNING
ARNING Risk of injury from touching
components under voltage
The ignition system and the fuel injection sys-
te m operate at high voltage. You could receive
an elect ric shoc k. #
Neverto uch ignition system or fuel injec-
tion system components when theve hi-
cle is switched on. The live components include
thefo llowing, for
ex ample:
R Ignition coils
R Fuel injectors R
Electric lines tothe ignition coils and the fuel
injectors &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of injury from using the
windscreen wipers when the bonnet is
open
If th e windscreen wipers start moving when
th e bonnet is open, you could be trapped by
th e wiper linkage. #
Always switch o. the windscreen wipers
and theve hicle /r stifyo u need toopen
th e bonnet. Maintenance and care
361
361

+
ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmen tal
pollution caused byenvironmentally ir re-
sponsible disposal Ty
re sealant contains pollu tants. #
Have the tyre sealant bottle disposed of
professionall y,e.g. at a Mercedes-Benz
Service Centre. #
Stow the tyre sealant bottle and the tyre in0a-
tion compressor. #
Pull away immediatel y. #
Stop driving aTer appr oximately ten minutes
and check the tyre pressure using the tyre
in0ation compressor.
The tyre pressure must now be at least
130 kPa (1.3 bar/19 psi). &
W
W ARNING ARNING Risk of accident due tothe
speci/ed tyre pressure not being attained
If th e speci/ed tyre pressure is not reached,
th e tyre is too badly damaged. The tyre seal-
ant cannot repair the tyre in this instance. The braking and driving
characteristics may be
gr eatly impaired. #
Do not continue driving. #
Consult a quali/ed specialist workshop. Countr
Countr
ies t
ies that hav
hat hav e Mer
e Mercedes-Benz Ser
cedes-Benz Ser vice24h:
vice24h:
yo u will /nd a stic ker with thete lephone number,
e.g. on the B‑pillar on the driver's side. #
Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/19 psi). See the tyre pres-
sure table on the fuel /ller 0ap forva lues. #
T
To incr
o incr ease t
ease t he tyr
he tyre pr
e pressur
essur e:
e:switch on the
tyre in0ation compressor. #
T To r o r educe t
educe t he tyr
he tyre pr
e pressur
essur e:
e:press pressure
re lease button 1next tomanome ter2. #
When the tyre pressure is cor rect, unscr ew
th e /lling hose from theva lve of the sealed
tyre. #
Screw theva lve cap onto theva lve of the
sealed tyre. #
Pull the tyre sealant bottle out of the tyre in0a-
tion compressor.
The /lling hose st ays on the tyre sealant bot-
tle. #
Drive tothe nearest quali/ed specialist work-
shop and ha vethe tyre, tyre sealant bottle and
/lling hose replaced there. Batt Batt
er
ery (v
y (v ehicle)
ehicle) N
No
ot
tes on t
es on t he 12 V batt
he 12 V batt ery
ery &
W
WARNING
ARNING Risk of an accident due towo rk
car ried out incor rectly on the battery
Wo rkcar ried out incor rectly on the battery
can, forex ample, lead toa short circuit. This Breakdown assis
tance
381
381

#
Take care toonly connect battery term i-
nals of identical polarity when receiving
starting assistance. #
Obser vethe sequence described for
connecting and disconnecting the jump
leads when receiving starting assistance. #
Do not connect or disconnect the bat-
te ry term inals while the engine is run-
ning. &
W
WARNI NG
ARNI NGRisk of explosion due toexplo-
sive mixture of gases
An explosive mixture of gases can escape
from the battery during charging and starting
assis tance. #
Fire , naked 0ames, smoking and creating
spar ksmust be avoided. #
Make sure there is adequate ventilation. #
Do not stand overth e batter y. &
W
WARNI NG
ARNI NGRisk of explosion from a frozen
battery
A dischar ged battery may freeze at temp era-
tures slightly abo veor below freezing point.
During starting assistance or battery charging,
battery gas can be released. #
Always allow a battery tothaw before
ch arging it or per form ing starting assis-
ta nce. If
th e indicator/warning lamps in the instrument
cluster do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has frozen.
In this case you may neither jump-start theve hi-
cle nor charge the batter y.
The service life of a bat tery that has been thawed
may be dramatically shor tened. The starting char-
acteristics may be impaired, especially at low
te mp eratures.
It is recommended that you ha veath awe d battery
ch ecked at a quali/ed specialist workshop. V
V ehicles wit
ehicles wit h plug-in h
h plug-in hybr
ybrid:
id:
If yo ur vehicle has been star ted with starting
assistance, it may not be possible touse the elec-
tric drive for appr oximately 30 minutes.
St arting assis tance is not considered tobe a nor-
mal operating condition.
All v All v ehicles
ehicles
* NO
NOTE
TEDamage caused bynume rous or
ex tended attem ptsto start the engine Numerous or
extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combusted fuel. #
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting assis-
ta nce and when charging the batter y:
R Only use undamaged jump lead/charging
cables with a su1cient cross-section and
insulated term inal clamps.
R Non-insulated parts of thete rm inal clamps
must not come into contact with other me tal 384 384
Breakdown assistance

Inter
changing the front and rear wheels if the
wheels or tyres ha vedi.erent dimensions can
re nder thege neral ope rating permit in valid.
The wear patterns on the front and rear wheels
di.er:
R front wheels wear more on the tyre shoulder
R rear wheels wear more in the centre of the
tyre
Do not drive with tyres that ha vetoo little tread
dep th. This signi/cantly reduces traction on wet
ro ads (aquaplaning).
On vehicles with the same front and rear wheel
size, you can inter change the wheels every
5,000 to10,000 km, depending on thewe ar.
Ensu rethe direction of rotation is maintained for
th e wheels.
Obser vethe inst ructions and saf ety no tes on
"Changing a wheel" when doing so (/ page 405). N
No
ot
tes on st
es on st or
oring wheels
ing wheels When storing wheels, obser
vethefo llowing no tes:
R ATer removing wheels, store them in a cool,
dry and preferably dark place.
R Protect the tyres from contact with oil, grease
or fuel. Ov
Ov
er
ervie
vie w of t
w of t he tyr
he tyr e-c
e-chang
hang e t
e tool kit
ool kit *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Apart from some countr
y-speci/c variants, vehi-
cles are not equipped with a tyre-change tool kit.
Fo r more information on which tyre-changing
to ols are requ ired and appr ovedfo r per form ing a
wheel change on your vehicle, consult a quali/ed
specialist workshop.
Yo ure qu ire thefo llowing tools, forex ample, to
ch ange a wheel:
R Jack R
Chock
R Wheel wrench
R Centring pin
% The jack weighs appr oximately 3.4 kg.
The maximum load capacity of the jack can
be found on the stic ker a1xed tothe jac k.
The jack is maintenance-free. If there is a
malfunction, please contact a quali/ed spe-
cialist workshop.
The tyre-change tool kit is located under the boot
0oor.
% Depending on the model, the tyre change tool
kit may be located at other positions under
th e boot 0oor. 404
404
Wheels and tyres

Inf
Inf
or
ormation on lo
mation on lo w outside t
w outside tem
emper
per atur
atur es
es
Re fuel your vehicle with as much winter diesel fuel
as possible at the beginning of winter.
Before changing over towinter diesel fuel, the fuel
ta nk should be em pty, if possible. When /rst refu-
elling wi thwinter diesel fuel, keep the fuel le vel
lo w, e.g. toreser veleve l. The fuel tank can be /l-
led as usual when next refuelling.
Fu rther information on fuel can be obtained at a
/lling station or a quali/ed specialist workshop.
T
T ank cont
ank cont ent and fuel r
ent and fuel r eserv
eserve (plug-in h
e (plug-in h ybr
ybrid)
id)
The tota l capacity of the fuel tank may vary,
depending on theve hicle equipment. T
T
o
o t
tal capacity and r
al capacity and r eserv
eserve fuel t
e fuel t ank
ank Mode
lT ot
Mode lT otal capacity
al capacity
E 300 e5 0.0 litres
All other model s5 0.0 litres
or
60.0 litres Model
Model
of whic
of which r
h r eserv
eserv e fuel
e fuel
All models 7.0 litres T
T
ank cont
ank cont ent and fuel r
ent and fuel r eserv
eserve (no
e (not f
t for plug-in
or plug-in
h
h ybr
ybr id)
id)
The tota l capacity of the fuel tank may vary,
depending on theve hicle equipment. T
T
o
o t
tal capacity and r
al capacity and r eserv
eserve fuel t
e fuel t ank
ank Mode
lT ot
Mode lT otal capacity
al capacity
E 300
E 350 66.0 lit
res
E 450 4MATIC 66.0 litres
or
80.0 litres
All other model s5 0.0 litres
or
66.0 litres Model Model
of whic
of which r
h reserv
eserv e fuel
e fuel
E 450 4MATIC 7.0 litres
or
12.0 litres
All other model s7 .0 litres Te
ch nical data
421
421