2021 MERCEDES-BENZ GLB SUV Fuel system

Fu
el No
teson fuel grades forve hicl eswith gaso‐
line engines
Obser vetheno teson oper ating fluids
(/ page34 0).
* NO
TEDama gecau sed bythewr ong fuel Ev
en small amounts ofthewr ong fuelcould
re sult indamag eto thefuel system, the
engine andtheemission control system. #
Onlyre fuel withlow- sulfur unleade d
fuel.
This fuelmaycont ainupto10%ethanol by
vo lume. Your vehicle issuit able foruse with
E1 0fuel .
Ne verre fuel withone ofthefo llo wing fuels:
R Dies el
R Gasoline withmor eth an 10%ethanol by
vo lume, e.g.E15, E8 5,E100
R Gasoline withmor eth an 3% methano lby
vo lume, e.g.M15,M30 ,M85 ,M1 00 R
Gasoline withadditiv escon tainin gme tal
If yo uha ve acc iden tally re fuel edwithth e
wr ong fuel: #
Donotswit chtheignition on. #
Consult aqu alif ied spec ialistwo rkshop. If
th eav ailable fuelisno tsuf ficie ntly low in sul‐
fur ,th is can produce unpleasant odors.
Onl yre fuel withfuel that has atleas tth eoct ane
number specifiedintheinf ormation labelinthe
fuel filler flap (/ page16 2).Ot her wise engi ne
ou tpu tcan bereduced andfuel consum ption
inc reased.
If yo uwa ntmaxim umengine output:onl y
re fuel withunle adedpr emiu mgrade gasoline
wit han oct ane number ofat leas t91 AKI/
95 RON.
As ate mp orarymeasur e,ifth ere comme nded
fue lis no tav ailable, youma yalso refuel with
unle adedre gular gasoline withat leas t87 AKI/
91 RON.Thisma yre duce engineoutput and
incr ease fuelconsum ption. Ne
verre fuel using gasoline withan eve nlowe r
RO N.
* NO
TEPrema turewe arthro ugh unleaded
re gular gasoline Un
leade dre gular gasoline cancause the
engine towe armor equ ickl yand impair lon‐
ge vity and perform anc e.
If unle aded premium grade gasoline is
una vailable andyouha ve torefuel using
unle adedre gular gasoline: #
Onlyfill th efuel tank tohalf fullwith
unleaded regular gasoline andrefill as
soon aspossible withunleaded pre‐
mium grade gasoline. #
Donotdr ive at themaximum design
speed. #
Avoid sudden accelerationengine
speeds over3000 rpm. Fu
rther information onfuel isavailable atthefo l‐
lo wing locations:
R Ataga sst atio n 34
2
Tech nica lda ta

R
Ataqu alif ied spec ialistwo rkshop
R Onthehtt ps:/ /www .mbusa.c om(USAonl y)
Inf ormat iononadd itivesingasoline
Obser vetheno teson oper ating fluids
(/ page34 0).
* NO
TEDama gefrom use ofunsu itabl e
add itives Ev
en smal lamou ntsofthewr ong additiv e
ma ylead tomalfu nctions occurring. #
Only addcle ani ng additiv es recomme n‐
ded byMer cedes-Ben zto thefuel. Mer
cedes- Benzrecomme ndsthat youuse fuel
br and sth at have addit ives.
In som ecoun tries, thefuel available mayno t
ha ve suf ficie ntadditiv es. Residue could buildup
in thefuel injec tionsystem asare sult. Inthis
case, incon sult ation withan aut hor ized
Mer cedes -Benz Cent er,th efuel maybe mix ed
wit hth ecleanin gadditiv ere comme ndedby
Mer cedes-Ben z.Be sureto obser vetheno tes
and mixing ratio ssp eci fied on thecon tainer . Ta
nk cont entand reser vefuel Model
Total cap acity
GLB 2501 3.7gal(52. 0liter s)
GLB 2504MATIC 15.9 gal(6 0.0 liter s) Model
ofwhi chreser ve
fuel
All model s1 .6gal(6. 0liter s) Engine
oil No
teson engine oil
Obser vetheno teson oper ating fluids
(/ page34 0). *
NO
TEEngi nedama gecau sed byan
inc orrect oil filt er ,inc orrect oil oraddi‐
tiv es #
Donotus eengi neoilsor oil filt er sot her
th an those whic hmee tth especif ica‐
tion sneces saryfo rth epr escr ibed
ser vice interva ls. #
Donotalt er theengine oiloroil filt er in
or der toachie velong erchang eint erva ls
th an presc ribed. #
Donotuse additiv es. #
Have theengine oilchang edafte rth e
pr escr ibed interva ls. Te
ch nica lda ta 34
3

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
ÿ *T
hefanmo toris faulty . #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at
th ecoolant temp eratur edispla yre mains belowthere dmar king.
00D4
Fuel Level Low *T
hefuel supply hasdropped intoth ere ser verang e. #
Refuel .
00D4
Ga sCa pLoose *T
hefuel filler cap isno tclos edcor rectly orthefuel system isleaking. #
Close thefuel filler cap. #
Ifth efuel filler cap wasalr eady proper lyclosed :con sult aqu alif ied spec ialistwo rkshop. Tr
ansmis sion Di
spla ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
Only Shift to'P' when Vehi-
cle isStationary *
Pa rk position 005Dcan beeng aged onlywhen theve hicle isstatio nary. #
Tostop, depr essthebr ak epedal. #
Shif tth etra nsmiss iontopar kposition 005Dwhile theve hicle isstatio nary. 36
4
Displa ymessag esand warning/ indic ator lam ps

Indi
catorand warning lam ps:
0075 Re
stra int system (/ page400)
00E9 Seat
belt(/page400)
Ù Electric po we rst eer ing
(/ page40 1)
ÿ Ve
hicl eswith aWi des cree nCo ck‐
pit :cool anttemp eratur e
(/ page402)
00B9 Chec
kEn gine (/page402)
003D Elect
rical mal functi on(/ page 402)
00D4 Re
ser vefuel withfuel filler flap loca‐
tio nind icat or(/ page40 2)
0049 US
A:elec tric par kingbr ak e(red)
(/ page40 5)
0024 Canada:
electric par kingbr ak e(red)
(/ page40 5)
0024 Ele
ctric pa rking brak e(yello w)
(/ page405)
0027 US
A:brak es (red) (/ page405 )
004D Canada:
brak es (red) (/ page405)
L Distance warning (/ page40 7) 0025
AB
S(/ page40 7)
00E5 ESP®
(/ page40 7)
00BB ESP®
OFF (/page40 7)
0077 Ti
re pressur emonit or(/ page41 0)
0060 Pa
rking lam ps(/ page12 5)
0058 Lo
wbe am (/ pag e12 5)
0057 Hi
gh beam (/ page12 6)
003E003D Tu
rn signal lights(/page12 6)
005A Fr
ont foglam ps(/ page12 5)
005E Re
ar foglam p(/ page12 5) Displ
aymessa gesand warning/ indic ator lam ps 399

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Consult aqu alif ied spec ialistwo rkshop.
or #
Exit theve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page27 5). #
Makesur eth at theair supply tothera diat orisno tobs truct ed. #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at the
cool anttemp eratur edispla yre mains belowthere dar ea.
00B9 En gine diagnosis warning
lam p The
yello wChec kEn gine warning lam pis lit while theengine isrunning .
*A malfunctio nha soccu rred intheengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exceed edand theengine maybe inemer gency mod e.
In som est at es, legalrequ iremen tsstipulat eth at youmus timm ediat elyco nsult aqu alif ied spec ialistwo rkshop as
soon astheye llo wChec kEn gine warning lam plight sup. #
Have theve hicle checkedas soon aspossible ataqu alif ied spec ialistwo rkshop.
003D Electr icalmalfunction warn‐
ing lam p The
redelect rical fault warning lam pis lit.
*T her eis afa ult intheelectr ics. #
Notethemessag eson themultifunc tiondispla y. Dis
play messa gesand warning/ indic ator lam ps 403

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00D4 Fu elreser vewarning lam p
fl ashes The
yello wfuel reser vewarning lam plight sup while youar edr ivin g.
*Th erehas been press ureloss inthefuel system. Thefuel filler cap isno tclos edcor rectly orthefuel system isleak‐
ing. #
Close thefuel filler cap.
If th efuel filler cap hasalready been closedcor rectl y: #
Consul ta qu alif ied spec ialistwo rkshop.
00D4 Fu elreser vewarning lam p
light sup The
yello wfuel reser vewarning lam plight sup while theengine isrunning .
*T he fuel supply hasdropped intoth ere ser verang e. #
Refuel . 40
4
Displ aymessa gesand warning/ indic ator lam ps

Fu
nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>189
Ac tiv eSte ering Assis t.............................1 91
Ac tivati ng/d eactiv ating ........... ............193
Ac tiveEmerg encyStop Assis t.............1 95
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011> 193
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>191
Sy stem limits ....................................... 191
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>128
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 129
Ad diti ves......... ......................................... 343
En gine oil............................................ 343
Fu el ..................................................... 343
Ad diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
Ad jus tableca rgocom partmen tflo or ..... 118
Af ter-sales service center
see ASSYSTPL US Air
bag
Re duced protect ion ...............................4 3
Air cond itioning menu
Callin gup ........................................ .... 140
Air distribut ion
Se tting (MB UXmult imed iasystem) ..... 140
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air vents ................................................... 141
Ad jus ting (front) ............. ......................141
Ad jus ting (rea r) ............. .......................142
Air vents
see Airvents
Ai r-re cir cula tion mode.............................1 41
Air -water duct .......................................... 276
Ke eping free ........................................2 76
Airb ag.........................................................4 1
Ac tivati on ........... ...................................36
Fr ont airbag (driver ,fr ont passeng er)..... 41
Ins tallation locations .............................. 41
Knee airbag............................................ 41 Ov
ervie w ................................................ 41
PA SSENGER AIRBAGind icat orlam p.....4 6
Pr otect ion ..............................................4 2
Sid eairba g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 41
Wi ndo wcur tain airbag ...........................4 1
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system)
All-wheel drive
see 4MA TIC
Ambient lighting
Se tting (multimedia system) ................1 30
Andr oidAuto
see Smar tphone integr ation ®
Animals Pets intheve hicle ................................. 63
Anti-loc kbr aking system
see ABS(An ti-loc kBraking System)
Anti-skid chains
see Snowch ains
Anti -thef tpr otection
Imm obiliz er............................................ 85 In
de x 41
3

Emer
gency Tensioning Devices
Ac tivati on ........... ...................................36
En gine
ECO star t/ stop funct ion......................1 52
Engine number....... ....... ......................339
St artin g(eme rgency operation
mode) ...... ............................................ 144
St artin g(R emo teOnline) ............... ...... 146
St artin g(sta rt/s topbutt on) ............ .... 144
St artin gassis tance <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....295
Swi tching off(s ta rt/s topbutt on) ........ 164
Engine data
Dis playing ............................................ 156
Engine number ........ ................................ 339
Engine oil................ .................................. 274
Ad ditiv es................ ........................ .....3 43
Ca paci ty....... ................................... .... 344
Che cking theoil leve lusing theon-
boar dcom puter ................................... 273
MB-F reigabe orMB- Appr oval ...............3 44
Qua lity .......... ....................................... 344
To pping up............ ...............................2 74
ESC (Electr onicStabil ityContr ol)
see ESP®
(Electr onicStabilit yPr og ram) ESP
®
Cr osswi ndAssis t..... ............................ 176
ESP ®
(Electr onicStabil ityProg ram) ....... 174
Ac tivati ng/d eactiv ating ........... ........... .176
Fu nctio n/no tes .................................... 174
Ext erior light ing
see Ligh ts
Ext erior light ing(Car e)...........................2 80
Ext erior mir rors <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 135, 136
Anti-g lare mode (automatic) .......... ......1 36
Au tomatic mirrorfo lding function ........ 138
Fo lding in/out .....................................1 35
Oper ating thememor yfunc tion ..........1 03
Pa rking posit ion.............................. .....1 37
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 135 F
Fa tig ue detection
see ATTENTION ASSIST
Fi rs t-aid kit(sof tsi ded) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> ...285
Fl at tire <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......285
Ch ang ingawh eel<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ........329
MOExt endedtires <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ........286 No
tes .................................................. 285
TIREFIT kit...........................................2 87
Flat towing
see Tow- bar system
Floor mats................................................ 124
Fo ilco vering
Ra dar and ultrasonic sensors.............. 172
Fr ee sof tware ............................................ 33
Fr eq uencies
Mobile phone...................................... 338
Tw o-w ayradio ...................................... 338
Fr ont airbag (driver ,fr ont passeng er)...... 41
Fr ont passeng erseat
see Seat
Fu el ...........................................................3 43
Ad ditiv es.............................................3 43
E1 0 ....... ............................................... 342
Fu elreser ve <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 343
Ga sol ine <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 342
Qua lity (gas oline )<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 342
Re fuel ing ............................................. 162
Sul fur cont ent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 342
Ta nk cont ent <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ..............343 42
4
Inde x