ECO mode MERCEDES-BENZ GLS 2021 Owner's Guide

Flat
tire No
tesin theeve ntofaflat tire &
WARNIN GRisk ofacci dent dueto aflat
tir e
A flat tirese verely affects thedr iving charac‐
te rist ics aswellas thesteer ing and braking
of theve hicle.
Ti re swith outrun-flat charact eristics : #
Donotdr ive wit haflat tire. #
Chan getheflat tireimm ediat elywit han
emer gency sparewheel orspar ewheel.
Alt ernat ivel y, consu ltaqu alif ied spe‐
cialis two rkshop.
Ti re swith run-flat charact eristics : #
Obse rveth einf ormation andwarning
no teson MOExt ended tires (run-f lat
tir e). In
theeve ntofaflat tire, thefo llo wing option s
ar eav ailable dependingon your vehicle's equip‐
ment :
R Vehicl eswith MOExt endedtir es: itis pos‐
sibl eto continu eth ejour neyfo ra shor t
per iod oftime. Makesur eyo uobse rveth e
no teson MOExt ended tires (run-f lattires)
(/ page338).
R Vehicl eswith aTIREF ITkit :yo ucan repair
th etir eso that itis poss ibletocontinu eth e
jou rney fora shor tper iod oftime. Todo this,
use theTIREFI Tkit (/ page339).
R Vehicl eswith Mercedes meconne ct:you
can makeacal lfo rbr eakdo wnassi stanc evia
th eov erhead control panel inthecase ofa
br eakdo wn(/ page304).
R Allvehicl es:chang eth ewheel
(/ page37 9).
% Theem erge ncy sparewheel isonl yav ailable
in cer tain coun tries. No
teson MOExt ended tires (run-fl attires) &
WARNIN GRisk ofacci dent whendr ivi ng
in limp -hom emod e
Whe ndr ivi ng ineme rgency modeth ehan‐
dling charact eristic sar eim pair ed. #
Donotexc eed thespecif iedmaximum
speed oftheMOEx tende dtir es. #
Avoid anyabr uptst eer ing and driving
maneuv ersas wellas drivin gove r
obs tacle s(cu rbs, pothol es, off-r oa d).
Thi sap plies, in pa rticular ,to aloaded
ve hicle. #
Stop driving intheemer gency mod eif
yo uno tic e:
R Ban gingno ise
R Vehicle vibration
R Smok ewhic hsmells likeru bber
R Contin uousESP®
int erve ntio n
R Crac ks inthetir eside walls #
Afterdr iving inemerg encymode, have
th erims checkedby aqu alif ied spec ial‐ 338
Break down assis tance

is
two rkshop withre ga rd totheir further
use. #
The defective tir emus tbe replaced in
eve rycase . Wi
th MOExt ended tires (run-f lattires), youcan
co ntinue todrive yo ur vehicle evenif th er eis a
tot alloss ofpressur ein on eor mor etir es. How‐
eve r,th etir eaf fect ed mus tno tsho wan ycle arly
vis ible da mag e.
Yo ucan recogni zeMOExt endedtir es by the
MOExt ended marking whichappear son theside
wa llof thetir e.
Ve hicl eswith tirepr ess uremonit oring sys‐
te m: MOExt endedtires ma yonly beused incon‐
junc tionwi th an act ivat ed tirepr essur emon itor‐
ing system.
If apr essur eloss warning mess ageappear sin
th emultifunc tiondispla y,proceed asfollo ws :
R Chec kth etir es fordama ge.
R Ifdr iving on,obser vethefo llo wing notes. Dr
iving distance possible inemer gency
mode afte rthe pres sur elo ss wa rning: Load
condit ion Driving distance pos‐
sible inemer gency
mode
Pa rtiall yladen 50miles (80km)
Fu lly laden 19mile s(30 km) The
driving distance possi ble in eme rgency
mod ema yva ry dependin gon thedr iving style.
Obser vethemaximum permissible speedof
50 mph(80 km/h).
If atir ehas gone flat and cannotbe replaced
wit han MOEx tende dtir e, youcan useast and‐
ar dtir eas ate mp orarymeasur e. TIREFIT
kitstorage location The
TIREF ITkit islocat edunder thecar gocom‐
par tmen tfloor . Ex
am ple: TIREFIT kit
1 Tire seala ntbottle
2 Tire inflation compressor Using
theTIR EFIT kit Re
quirement s:
R Tire seala ntbottle and tireinf lation compres‐
sor (/ page339).
R TIREFIT sticke r
R Gloves(depending ontheve hicle equipment)
Yo ucan useTIRE FITtir esealan tto seal perfora ‐
tio nda ma geofup to0.16 in(4 mm), particular ly Br
eakdo wnassis tance 33
9

Ne
verexc eed maximum tirepr essur e1 speci‐
fi ed forth etir e. Inf
ormat ionontirech aract eristics %
The datasho wnintheimag eis exam ple
dat a.
This informat iondesc ribes thetype oftirecor d
and thenumber oflaye rs inside wall1 and
under tiretread 2. Ti
re size designation, load-bearingcapacity ,
speed ratin gand load inde x &
WARNIN GRisk ofinju rythro ugh exceed‐
ing thespecif iedtireload rating orthe
per missible speedrating
Ex cee ding thespecif iedtireload rating or
th eper missible speedrating mayle ad totire
da ma geand tothetir es bur sting. #
Ther efor e, onl yuse tiretypes andsizes
appr ovedfo ryo ur vehicle model. #
Obser vethetir eload rating andspee d
ra ting requ ired foryo ur vehicle. 1
Preceding letter
2 Nominal tirewidt hin millime ters
3 Aspe ctratio in%
4 Tire code
5 Rim diame ter
6 Load-be aring inde x
7 Speed rating
8 Loadind ex
% The datasho wnintheimag eis exam ple
dat a.
In fo rm atio nabout readin gtir edat acan be
obt aine dfrom anyqu alif ied spec ialistwo rkshop. 37
0
Wheels andtires

Cha
nging awheel No
teson selecting, installing andreplac ing
tir es Mer
cedes -AMG vehicl es:obse rveth eno tesin
th eSupplement .Yo uco uld other wise failto rec‐
ogni zedangers. &
WARNIN GRisk ofacci dent dueto inc or‐
re ct dimensi onsofwhe elsand tires
If whe elsand tires ofthewr ong size are
ins talled, thewheel brak es orwheel suspen‐
sion componen tsma ybe damag ed. #
Alw aysre place wheels andtires wit h
th ose that fulf illthespecif ication sof
th eor iginal part.
When replacing wheels, makesur eto fit th e
cor rect:
R Desi gnati on
R Mod el Whe
nre placing tires, mak esur eto ins tallth e
cor rect:
R Desi gnati on
R Manuf actu rer
R Model &
WARNIN GRisk ofinju rythro ugh exceed‐
ing thespecif iedtireload-bear ingcapa‐
city ortheper missible speedrating
Ex cee ding thespecif iedtireload rating or
th eper missible speedrating mayle ad totire
da ma geand tothetir es bur sting. #
Ther efor e, onl yuse tiretypes andsizes
appr ovedfo ryo ur vehicle model. #
Obser vethetir eload rating andspee d
ra ting requ ired foryo ur vehicle. *
NO
TEVehicle andtiredamag eth ro ugh
tir etyp esand sizes that have notbe en
ap prove d Fo
rsaf etyre ason s,on lyuse tires, wheel s
and accessories whic hha ve been speciall y
appr ovedby Mer cedes-Ben zfo ryo ur vehicle.
These tires arespecially adaptedto thecon ‐
tr ol systems, suchas ABS ,ES P®
and
4MA TIC,andmarkedas follo ws :
R MO =Mer cedes-Ben zOr iginal
R MOE =Mer cedes-Ben zOr iginal Extended
(r un-f lattireonl yfo rcer tain wheels)
R MO1 =Mer cedes -Benz Original (onlycer ‐
ta in AMG tires)
Cer tain charact eristic s,suc has han dling,
ve hicle noise emissions, consumption, etc.
ma yot her wise beadv ersely affect ed. Fur‐
th er mor e,other tiresizes could result inthe
tir es rubbing agains tth ebody andaxle com‐
ponen tswhen loaded. Thiscould result in
damag eto thetir eor theve hicle. Wheels
andtires 37
5

#
Unscr ew unio nnut 2offiller hose 1from
th eva lve. #
Screw theva lve cap oftheemer gency spare
wheel ontoth eva lve ag ain. #
Storefiller hose 1and plug 3inthelowe r
section ofthetir einf lation compressor hous‐
ing. #
Storeth etir einf lation compressor inthe
ve hicle. Collapsible
sparewheel No
teson thecollap siblesparewheel &
WARNIN GRisk ofacci dent caused by
inc orrect whe eland tiredimensi ons
The wheelor tiresize andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydif fer. Mount‐
ing anemer gency sparewheel/ sparewheel
ma yse verely im pa irth edr iving charact eris‐
tic s.
To preve nthazardous situa tions: #
Adaptyo ur drivin gst yle accor dinglyand
dr ive car efull y. #
Nevermount moreth an oneemer gency
spa rewheel orspar ewheel that dif fers
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel ofadif fere nt size briefly. #
Donotsw itchof fESP ®
. #
>Ha vetheemer gency sparewheel or
spar ewheel ofadif fere nt size replaced
at thenear estqu alif ied spec ialistwo rk‐
shop. Thenewwheel mustha ve the
cor rect dimensi ons. The
collapsib lespa rewheel isan emer gency
spa rewheel whichis onl ysuit able foruse fora
limi tedper iod oftime andinare strict ed manne r
in theeve ntofaflat tire(e. g.unt ilth enear est
wo rkshop).
The tireside walls arefo lded when intranspo rt
mode. Beforeuse, thecollapsible sparewheel
has tobe inflated withth eaccom panying com‐
pr essor . Chec
kth etir epr essur eof thecollapsible spare
wheel onceins talled. Correct thepr essur eas
neces sary.
The maximum permissible speedwithacollapsi‐
ble spar ewheel installed is50 mph(8 0km/h).
Do notins tallsno wch ains onthecollapsible
spar ewheel.
Re place thecollapsible sparewheel afte rsix
ye arsat thelat est,re ga rdless ofwe ar.
% Ve
hicl eswith atir epr ess uremonit oring
sy stem: Ifacollap siblesparewheel isins tal‐
led thetir epr essur emonit oring system can‐
no tfunc tion reliabl y.Fo ra fe w min utes afte r
an emer gency sparewheel isins talled, the
sy stem mayst ill displa yth etir epr essur eof
th ere mo vedwheel. Onlyre star tth esy stem
ag ain when thecollapsible sparewheel has
been replaced withane wwheel.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page35 7)
R Tire pressur eta ble (/ page359 ) Wheels
andtires 38
7

*
NO
TEPrema ture wearcaus edbyunle a‐
ded regular 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 speed. #
Avoid sudden accelerationandengine
speeds over3,000 rpm. Fu
rther information onfuel isavailable atthefo l‐
lo wing locations:
R Ataga sst atio n
R Ataqu alif ied spec ialistwo rkshop
R USAonly: athttp: //www .mbusa.com Inf
ormat iononaddit ives ingasoline
Obser vetheno teson oper ating fluids
(/ page39 4).
* 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
Missi ngvalues werenotye tav ailable atthetime
of going topress. The
totalcapac ityofthefuel tank mayva ry,
dependin gon theve hicle equipment.
Capacity Model
Total cap acity
Al lmo dels 23.8gal(90. 0liter s) Model
ofwhic hre ser ve
fuel
All model s2 .4gal(9. 0liter s) Mer
cedes‑M aybac hT otal capac ity
All mode ls Mer
cedes‑Ma ybacho fwhic hre ser ve
fuel
All model s Eng
ineoil No
teson engine oil
Obser vetheno teson oper ating fluids
(/ page39 4). 396
Tech nica lda ta

*
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. Mer
cedes -Benz recomme ndsthat youha ve the
oil chang ecar ried out ataqu alif ied spec ialist
wo rkshop.
Quality andcapacity ofengine oil
MB-F reigabe orMB- Appr oval Gasol
ineeng inesE ngineoilspecif ica‐
tions
GL S450 4MATIC 229.51,229 .52,
229 .61
229 .71*
GL S580 4MATIC 229.52
229 .61* MB-
Freig abe orMB -Appr oval Mer
cedes‑Ma ybachE ngine oilspecif ica‐
tions
Mer cedes- Maybac h
GL S600 4MATIC 229.
5 *
Re comme ndedforlo we stpossible fuelcon‐
sum ption (lowe stSA Evis cos ityclassineach case
;obs erve possible restrictions ofthe
appr ovedSA Evis cos ityclasse s).
To achie vethelowe stpossible fuelconsum ption,
it is recomme ndedtouse theengine oilspecif i‐
cation smar kedin theta ble forth elowe stSA E
viscosi tyclass .Po ssible restrictions ofthe
appr ovedSA Evis cos ityclasse smu stbe
obser ved.
Mer cedes-Ma ybachGLS 6004MATIC:only
use SAE0W -40 orSA E5W -40 engineoils.
The follo wing values referto an oilchang e,
inc ludin gth eoil filt er .
Re plac eme ntamoun t Mode
lR eplacement
am ount
GL S45 04MA TIC 8.9qt (8.5liter s)
GL S58 04MA TIC 10.0 qt (9.5 lite rs) Mer
cede s‑Maybac hR eplacement
am ount
Mer cede s-Maybac h
GL S600 4MATIC 10
.0 qt (9.5 lite rs) Te
ch nica lda ta 39
7

#
Obser vetheins truction sin the
Mer cedes-Ben zSpecif ications forOper‐
ating Fluids310.1. Ha
ve thecoolant regular lyreplaced ataqu alif ied
spec ialistwo rkshop.
The propor tionofcor rosion inhibit or/antifr eeze
concen trat ein theengine cooling system should
be:
R Aminimum of50% (antifr eezeprotect ion
do wn toappr oximat ely-3 5°F (-37°C))
R Amaxim umof55% (antifreeze protect ion
do wn to-49 °F(-45 °C)) Co
olant capacity Mode
lC apacity
GL S450 4MATIC 20.0USqt
(1 8.9 liter s)
GL S580 4MATIC 16.6 US qt
(1 5.7 lite rs) Mer
cede s‑Maybac hC apacity
Mer cedes -Maybach
GL S60 04MA TIC 20
.0US qt
(1 8. 9liter s) No
teson windshield washer fluid Obser
vetheno teson oper ating fluids
(/ page39 4). &
WARNIN G‑Ri sk offire and injuryfrom
wind shieldwa sher concen trat e
Wi ndsh ield wa sher concen trat eis highly
fl ammab le.Itcoul dign ite if it com esinto
con tact with hotengine component partsor
th eex haus tsy stem. #
Mak esur eth at no wind shieldwa sher
concen trat espills outnext to thefiller
open ing. *
NO
TEDama getotheex terior lighting
due touns uitable windshieldwa sher fluid Uns
uitable windshieldwa sher fluid maydam‐
ag eth eplas ticsur face oftheex terior light‐
ing. #
Onlyuse windshield washer fluid whic h
is also suitable foruse onplastic sur fa‐
ces, e.g.MBSumm erFitor MB Winter‐
Fit. *
NO
TEBlocked spr aynozzl escau sed by
mixing windshieldwa sher fluids #
Donotmix MBSum merFitand MBWin‐
te rFit withot her windshield washer flu‐
ids. Do
notuse distilled orde- ionizedwa teras thefill
le ve lsen sor maybe trigg ered erro neou sly. Te
ch nica lda ta 399

Heig
htwhe nopen ed Model
1 1
Heig ht
whe n
open ed* 2 2
Head‐
ro om*
Ve hicl eswith AIR‐
MA TIC 84
.4in
(2 14 4mm)
- 87 .9 in
(223 4mm) 75
.9 in
(1 929 mm)
- 79.4 in
(20 19mm)
Ve hicl eswith Off-
ro ad pac kage 84
.4in
(2 14 4mm)
- 89.5 in
(22 74mm) 75
.9 in
(1 929 mm)
- 81 .0 in
(205 9mm) Mer
cedes ‑Ma ybac h
1 1
Hei ght
whe n
ope ned* 2 2
Head ‐
ro om*
All mode ls 85.0in
(2 15 9mm)
- 87 .9 in
(223 4mm) 76
.5 in
(1 94 4mm)
- 79.4 in
(20 19mm) *When
there ar-en dlowe ring isacti vated, the
va lues arecor responding lylowe r.
Ve hicl edimens ions All
models
Ve hicle length2 05.0in
(520 7mm)
Ve hicle length,AMG Styling 205.2in
(52 13mm)
Ve hicle widthincluding out‐
side mirrors 84
.9in
(2 15 7mm)
Ve hicle widthexc luding out‐
side mirrors,min. tomax. 77
.0 in
(1 956 mm) -
79.9 in
(2030 mm)
Ma ximu mvehicle height (AIR‐
MA TIC) 74
.3 in
(1 888 mm)
Ma ximu mvehicle height (Off-
ro ad pac kage ) 75
.9 in
(1 928 mm) Al
lmode ls
Mini mum vehicle height (high‐
wa ydr ivin gleve l) 71
.7 in
(1 823 mm) -
72 .3 in
(1 838 mm)
Whe elba se 123.4 in
(3 13 5mm)
Maxi mum ground clearance
(AIR MATIC ) 10
.1in
(259 mm)
Maxim umground clearance
(Of f-ro ad pac kage ) 11
.3 in
(289 mm)
Mini mum grou nd clearance
(AIR MATIC /Of f-roa dpa ckag e) 6.
8in
(1 74 mm) Mer
cede s‑Maybac h
Ve hicle length2 04.9in
(5205 mm)
Ve hicle widthincluding out‐
side mirrors 84
.9in
(2 15 7mm) 402
Tech nica lda ta

Light
s Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
: Check LeftLow
Beam (exa mp le) *T
hecor responding lightsourceisfaulty . #
Drive on car efull y. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
% LED lightsour ces: thedispla ymessag efo rth ecor responding lightappea rsonl ywhen allthelight- emitt ing
diodes inthelight arefa ulty .
: Malf unctionSee Oper a-
to r’s Man ual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
: Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop. 41
4
Display messa gesand warning/ indic ator lam ps