2021 MERCEDES-BENZ GLS SUV fuel additives

#
Neverre fuel using petrol. #
Never mix petrol with diesel fuel. *
N
NO OTE
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 sulphur-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 fuel with a sulphur content less
than
50 ppm.
Ne verre fuel wi thone of thefo llowing fuels:
R Petrol
R Marine diesel
R Heating oil
R Pure bio-diesel or vege table oil
R Para1n or kerosene
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 Do not use diesel torefuel vehicles
with a petrol engine If
yo u ha veacciden tally refuelled wi th the
wrong fuel:
R Do not switch on theve hicle. Otherwise
fuel can enter the engine. Driving and parking
217 217

&
W
WARNI NG
ARNI NGRisk of injury from fuels
Fu els are poisonous and hazardous toyour
health. #
Do not swallow fuel or let it come into
contact with skin, eyes or clo thing. #
Do not inhale fuel vapour. #
Keep children away from fuel. #
Keep doors and windo wsclosed during
th ere fuelling process.
If yo u or other people come into contact with
fuel, obser vethefo llowing: #
Immediate lyrinse fuel o. your skin with
soap and water. #
If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical at tention
immedia tely. #
Ifyo u swallow fuel, seek medical atten-
tion immediatel y.Do not induce vomit-
ing. #
Change immediately out of clo thing that
has come into contact with fuel. Flexible-fuel
vehicles can be refuelled wi th thefo l-
lowing fuel types:
R unleaded petrol
R E85 fuel
R a mixture of E85 fuel and unleaded petrol
Flexible-fuel vehicles can be identi/ed bythe
Et Et hanol up t
hanol up t o E85
o E85sticker on the inside of the fuel
/ller 0ap.
Depending on the countr y,the fuels you can use
in your vehicle may di.er from the information in
th e Owner's Manual. The fuels that ha vebeen
appr ovedfo ryo ur vehicle can be found on the
inst ruction label on the inside of the fuel /ller 0ap. F F
uel
uel Inf
Inf
or
ormation on fuel gr
mation on fuel grades f
ades f or v
or vehicles wit
ehicles wit h pe
h petr
trol
ol
engines
engines
Obser vethe no tes on operating 0uids
(/ page 425). *
N NOOTE
TE Damage caused bythe wrong fuel 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, sulphu r-free
fuel that conforms toEuropean EN 228,
or an equivalent speci/cation.
Fu el of this speci/cation may contain up to
10% ethanol byvolume. Your vehicle is suita-
ble 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 tal426
426
Te
ch nical data

If
yo u ha veacciden tally refuelled wi th the
wrong fuel: #
do not switch on the ignition. #
consult a quali/ed specialist workshop. The
following compatibility indications for fuel
apply toyour vehicle: 1
For petrol with maximum 5% ethanol byvol-
ume
2 For petrol with maximum 10% ethanol byvol-
ume Ac
cording toEuropean standard EN 16942 you
can /nd the compatibility indications at thefo l-
lowing locations:
R onthe inst ruction label on the fuel /ller 0ap
R onthe fuel pump or pump nozzle suitable for
yo ur vehicle throughout Europe
If th eav ailable fuel is not su1ciently low in sul-
phur, this can produce unpleasant odours.
The recommended octane number foryo ur vehi-
cle can also be found on the inst ruction label in
th e fuel /ller 0ap (/ page 216).
As a temp orary measure, if there commended fuel
is not available, you may also use regular unlea-
ded petrol with at least 91 RON.This may reduce
engine output and increase fuel consumption.
Ne verre fuel using petrol wi than even lo werRO N.
Fu rther information on fuel can be obtained at a
/lling station or a quali/ed specialist workshop.
Inf
Inf or ormation on additiv
mation on additiv es in pe
es in petr
trol (v
ol (v ehicles with
ehicles with
pe
pe tr
trol engine)
ol engine)
No tethe inst ructions about operating 0uids
(/ page 425). *
N
NO OTE
TE Damage from use of unsui table
additives Even small amounts of
the wrong additive may
lead tomalfunctions occur ring. #
Only add cleaning additives recommen-
ded byMercedes-Benz tothe fuel. Mercedes-Benz
recommends that you use brand-
name fuels with additives.
In some countries, the fuel available may not ha ve
su1cient additives. Deposits could build up in the
fuel injection system as a result. In this case, in
consultation with a Mercedes-Benz service
centre, mix the fuel with the cleaning additive rec-
ommended byMercedes-Benz. Obser vethe no tes
and mixing ratios indica ted on theta nk.
Inf
Inf or ormation on fuel q
mation on fuel q uality f
uality for v
or vehicles wit
ehicles wit h a die-
h a die-
sel engine
sel engine
Gener Gener al not
al notes
es
No tethe inst ructions about operating 0uids
(/ page 425). Te
ch nical data
427
427

Ad
Blue ®
residues cr ystallise aTer a period of
time, and contaminate the sur faces with which
th ey come into contact. Clean the dirty sur faces
with water as soon as possible.
When you open theAd Blue ®
tank, small amounts
of ammonia vapour may escape. Do not inhale
any ammonia vapours that may be released. Only
/ll theAd Blue ®
tank in well-ventilated areas.
A A dBlue dBlue ®
®
capacity
capacity
Tot
Tot al capacity of A
al capacity of A dBlue
dBlue®
®
t
tank
ank Model
Tot
Mode lT otal capacity
al capacity
All model s3 1.6 litresA A
dBlue dBlue ®
®
consump
consump tion
tion
The average AdBlue ®
consu mption is between 1%
and 5% of fuel consum ption. Like fuel consump-
tion, AdBlue ®
consu mption is high lydependent
upon driving style and operating conditions. For
th is reason, your vehicle's actual consu mption /g-
ures under da y-to -day operating conditions may
di.er from the consum ption /gures calculate d.
The frequency at which you will ha veto to p up Ad
Blue ®
will also vary. Ha vetheAd Blue ®
supply
ch ecked at a quali/ed specialist workshop before
making jou rney s outside of Europe. Before a lon-
ge r st ayoutside of Europe, consult a quali/ed
specialist workshop.
A
A dBlue
dBlue ®
®
r
rang
ang e and
e and /ll
/lllev
level
el
Yo u can ha vetheAd Blue ®
range and le vel dis-
pla yed in the driver's displa y.
% The AdBlue ®
range sh own depends strongly
on the driving style and operating conditions.
The actual range can therefore deviate from
th era nge cur rently displa yed in the driver's
displa y.
The information supplied in the operator's manual
re ga rding there ser vequantity at the /r stwa rning
in the driver's display and on the minimum top-up
qu antity when theAd Blue ®
tank is em pty is also
to be understood as guide values. Engine oil
Engine oil
N
No
ot
tes on engine oil
es on engine oil
Obser vethe no tes on operating 0uids
(/ page 425). *
N
NOOTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters other
th an those which meet the speci/cations
necessary forth e prescribed service
inter vals. #
Do not alter the engine oil or oil /lter in
order toachie velonger change inter vals
th an prescribed. #
Do not use additives. #
Have the engine oil changed aTer the
prescribed inter vals. 430
430
Te
ch nical data

A
A
ctiv
ctiv eSt
e St eer
eer ing Assist
ing Assist
Ac tivating/deactivating.......................... 252
Ac tive Emer gency Stop Assist................ 253
Fu nction................................................ 251
System limits......................................... 251
A
A ctiv
ctiv e
eTr
Tra1c
a1c Jam Assist
Jam Assist
Ac tivating/deactivating.......................... 249
Fu nction................................................ 248
A A dap dap tiv
tive br
e br ak
ake lights
e lights .................................... 236
A
A dap
dap tiv
tive cr
e cr uise contr
uise contr ol
ol
see Active Distance Assist DISTRONIC
A
A dap
dap tiv
tive functions, MUL
e functions, MUL TIBEAM LED
TIBEAM LED
see Intelligent Light System
A
A dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus t Plus
Fu nction................................................ 165
Switching on/o..................................... 166
A
A dBlue
dBlue ®
®
Ad ditives................................................ 429
Capacity................................................ 430
No tes..................................................... 219
Purit y.................................................... .429
To pping up............................................ .220 A
A dditional cushion dditional cushion
Leg rest................................................. 115
Re ar head restraint................................ 122
A
A dditional door lo ck
dditional door lock ....................................... 84
A
A dditiv
dditiv es
es
Ad Blue ®
................................................ .429
Engine oil............................................... 430
Fu el....................................................... 427
A
A dditiv
dditiv es (A
es (AdBlue
dBlue ®
®
)
)
see AdBlue ®
A
A dditiv
dditiv es (engine oil)
es (engine oil)
see Additives
A
A dditiv
dditiv es (fuel)
es (fuel)
see Fuel
ADS PL
ADS PL US dam
US dam ping syst
ping syst em
em
see AIRMATIC
ATer
ATer -sales
-sales ser
service
vice
see ASS YST PLUS
Air conditioning menu
Air conditioning menu Calling up.............................................. 179
Air dis
Air distr tribution
ibution
Setting................................................... 178
Setting (MBUX multimedia system)......... 180 Air fr
Air fr
eshener syst
eshener syst em
em
see Frag rance system
Air inlet
Air inlet see Air-water duct
Air pr
Air pr essure
essure
see Tyre pressure
Air suspension
Air suspension
see AIRMATIC
Air v
Air v ents
ents
Ad justing (front)..................................... 186
Ad justing (rear)...................................... 187
Glo vebox............................................... 188
Air v
Air v ents
ents
see Air vents
Air
Air -conditioning syst
-conditioning syst em
em
see Climate cont rol
Air
Air -r
-recir
ecir culation mode (wit
culation mode (wit h
h/ne
/ne
par
par ticle
ticle pr
pre/lt
e/lt er)
er).......................................... 181
Air
Air -w
-wat
ater duct
er duct
Ke eping free.......................................... 371
Airbag
Airbag
Activation................................................ 43
Cushionbag.............................................. 48 520
520
Index

F
F
og light (enhanced)
og light (enhanced) .................................... .164
F
F oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s................. 229
F
F olding t
olding t able
able................................................ 138
Fr
Fr agr
agr ance
ance
see Frag rance system
Fr
Fr agr
agr ance syst
ance syst em
em
Inserting/ removing the 0acon................1 82
Setting................................................... 182
Fr
Fr ee dr
ee dr iving mode
iving mode
St arting................................................ .280
Fr
Fr ee
ee soTw
soTw are
are................................................. 41
Fr
Fr eq
eq uencies
uencies
Mobile phone......................................... 421
Tw o-w ayradio........................................ 421
Fr
Fr ont airbag (dr
ont airbag (dr iv
iver
er , fr
, fr ont passeng
ont passeng er)
er).............. 48
Fr
Fr ont passeng
ont passeng er seat
er seat
Ad justing from the driver's seat.............. 111
Ad justing from there ar.......................... 112
Fr
Fr ont passeng
ont passeng er seat
er seat
see Seat F
F
uel
uel
Additives................................................ 427
Diesel.................................................... 427
E10........................................................ 426
Fu elreser ve........................................... 429
Low outside temp eratures...................... 427
Pe trol..................................................... 426
Quality (diesel )....................................... 427
Quality (petrol)....................................... 426
Re fuellin g.............................................. .216
Sulphur content..................................... 426
Ta nk content.......................................... 429
F F uel consump
uel consump tion indicat
tion indicator
or
Calling up.............................................. 208
F
F unction seat
unction seat
see Door cont rol panel
F
F unction seat (r
unction seat (r ear)
ear)
see Seat (rear)
F
F uses
uses
Before replacing a fuse.......................... 397
Fu se assignment diag ram. ...................... 397
Fu se box in the engine compartment......3 98
Fu se box in the front passenger foot-
we ll........................................................ 399 Fu
se box in the load compartment......... 399
Fu se box on the dashboar d.................... 399
No tes..................................................... 397 G
G
Gar
Gar ag
age door opener
e door opener
Clea ring the memory.............................. 225
Gar
Gar ag
age door openers
e door openers
Opening/closing the door......................2 25
Prog ramming buttons............................. 223
Re solving problems................................ 225
Syn chronising thero lling code................ 224
Gear
Gear shiT
shiT r
recommendation
ecommendation........................... 212
Genuine par
Genuine par ts
ts................................................ 23
Glide mode
Glide mode.................................................. 212
Glov
Glov e box
e box
Air vent.................................................. 188
Gr
Gr oss mass
oss mass.................................................. 423 H
H
Handbr
Handbr ake
ake
see Electric parking brake
Handling c
Handling c har
haract
acter
eris
istics (unusual)tics (unusual) ................ 400 534
534
Ind
ex