2020 MERCEDES-BENZ GLS SUV fuel

Light
andvisibili ty................................... 155
Ext eriorlighti ng............ ..............................155
Int erior lighti ng........ ......................... .......... 160
Wi ndsh ield wipe rand windsh ield wa sher
sy stem .................. ...................................... 162
Mir rors <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 166
Oper ating thesun visor s... .......................... 169
Ar ea perm eable toradio wav eson the
winds hield.................................................. 170
Infr ared-r eflectiv ewindshi eldfunction ........ 170 Clim
atecontr ol......................................... 171
Ov ervie wof climat econt rolsy stems ..........1 71
Oper ating theclimat econ trol system ......... 172 Dr
ivin gand parking .................................. 181
Dr iving ............ ............................................181
DY NA MIC SELE CTswitc h... .........................1 96
Au tomatic transmiss ion.............................. 199
Tr ans fercase ........... ................................... 204
Fu nctio nof 4MA TIC<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ...........206
Re fuel ing...... .............................................. 206
Pa rking .......................................................2 08
Dr iving anddriving safetysy stems .............. 218 Tr
ailer hitch <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 296
Ve hicle towing instruct ions .............. ...........3 00 Ins
trument Displa yand on-b oard
co mp uter ...... ............................................301
Ins trument Displayove rview ............ ...........3 01
Ov ervie wof thebutt ons onthesteer ing
wheel ..........................................................3 02
Oper ating theon- boar dcom puter.............. 303
Ad jus ting thedesign oftheIns trument
Displa y... .......................................... ..........3 04
Sho wing display cont entontheins tru‐
ment cluster..... .............................. ............ 305
Ov ervie wof disp lays on themultifunc ‐
tion displa y... .................................... ..........3 06
Ad jus ting theins trument lighting ................3 07
Menus andsubmenus ................................ 307
Head-up Display... ....................................... 314 Vo
ice Contr olSy stem ............................... 31 6
No teson oper ating safety...........................3 16
Oper ation .......................................... ..........3 17
Using theVo ice Cont rolSy stem effec‐
tiv ely <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011>...319 Esse
ntialvo ice com mand s.........................3 20 MBUX
multimedia system ...................... 334
Ov ervie wand oper ation .............................. 334
Sy stem settings .......................................... 369
Na vig ation .................................................. 380
Te lephon e...................................................4 21
Online andInterne tfunctions ..................... 449
Media ......................................................... 456
Ra dio .......................................................... 463
Sound .........................................................4 71
MBUX rear table t........................................ 473 Maint
enanc eand care..... ........................ 476
ASS YSTPL US service interva ldispla y.........4 76
Engi necompar tment............ ...................... 477
Clean ingand care.......................................4 83 Br
eakdo wnassi stance ............................ 494
Flat tire....... ................................................ 494
Batt ery(v ehi cle) ....... .................................. 499
To w star tin gor towing away <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 505
Elec trica lfus es<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 510 Con
tents 3

1
Spee dometer →
301
2 003E003D Turn signal lights →
156
3 Multifunction display →
306
4 0075 Restra int system →
623
5 Tach ome ter →
301
6 00BB ESP®
OFF →
631
00E5 ESP®
→
631
7 005E Rear foglight →
156
8 0057 Highbeam →
156
0058 Lowbeam →
155
0060 Parking lam ps →
155
9 ÿ Coolan tto oho t/c old →
625
A Coolant temp eratur edispla y →
301
B 0024 Electric pa rking brak e(yello w) →
628
C ± ActiveLa ne Chang eAssi st →
244
D 003D Electrica lma lfunctio n →
625 E
L Distance warning →
630
F 0025 ABSmalfun ction →
631
G Ù Electric po we rst eer ing malfunct ion →
624
H 0077 Tire pressur emonit or →
634
I 00B6 Fuelreser vewit hfuel filler cap locat ion
indic ator →
625
J Fuelleve lindic ator
K Elec tric par kingbr ak eapplied (red) →
628
0049 USAonl y
0024 Canada only
L Brak es(red) →
628
0027 USAonl y
004D Canada only
M 00E9 Seatbeltnotfa stened →
623
N 00B9 CheckEn gine →
625
O ä Suspension malfunction(red) →
630
ä Suspension malfunction(yello w) →
630 At
aglanc e– Indicat orand warning lam ps 11

1
QRcode foraccessi ngthere scue card →
30
2 mebutt onand SOS button →
442
3 Haza rdwa rning light s →
157
4 Chec kingand refilling operatingfluids →
554
St artin gassis tance →
503
5 Tow- star tin gand towing away →
506 6
Flat tire →
494
7 Fuelfiller flap withins truct ion labels fortir e
pr essu re,fuel type andQRcode foraccessi ng
th ere scue card →
206
8 Tow- star tin gand towing away →
506
9 TIREFIT kit →
495 At
aglanc e– Em erge ncie sand brea kdo wns 19

Pr
otecting theen vir onmen t
+ ENV
IRONM ENTALNOTEEnvironme ntal
da ma gedue tooper ating condit ionsand
per sonal driving style The
pollut antemission oftheve hicle is
dir ectl yre lat ed tothewa yyo uoperat eth e
ve hicle.
Oper ateyo ur vehicle inan environment ally
re sponsible mannertohelp protect theen vi‐
ro nment. Plea se obser vethefo llo wing rec‐
omme ndations onope rating cond itions and
pe rsonal driving style.
Oper ating conditions: #
Mak esur eth at thetir epr essur eis cor‐
re ct. #
Donotcar ryanyunn ecessar ywe ight
(e.g. roof lugg agera ck sonce youno
lon gerneed them). #
Adher eto theser vice interva ls.
A regular lyser viced vehicle willcont rib‐
ut eto environmen talpr otect ion. #
Alw aysha ve maint enance workcar ried
out ataqu alif ied spec ialistwo rkshop.
Pe rsonal driving style: #
Donotdepr esstheaccelera torpeda l
when star tin gth eengine. #
Donotwa rm uptheengine whilethe
ve hicle isstatio nary. #
Drive car efu llyand maintain asu itab le
di st anc efrom theve hicle infront. #
Avoid freq uent, sudden acceleration
and braking. #
Chang ege ar ingood timeand useeach
ge ar onlyup to00C3 ofits maximum
engine speed. #
Switc hof fth eengine instatio narytraf‐
fi c, e.g. byusin gth eEC Ostar t/ stop
funct ion. #
Drive fuel-ef ficie ntly .Obs erve theEC O
displa yfo ra fuel -efficie ntdrivi ng style. +
ENVIR
ONMEN TALNO TEEnvironme ntal
po lluti on cau sed byirre sponsible dis‐
posal ofthehigh-v oltagebatt ery A
high-v oltagebatt erycon tains mat erials
whic har ehar mful totheen vironmen t. #
Dispose ofdef ective high-v oltagebat‐
te ries ataqu alif ied spec ialistwo rk‐
shop. En
vir onmental issuesandrecomm endations:
It is recomme ndedthat youre -us eor recy cle
mat erials ins tead ofjus tdispo singof them.
The releva nt environme ntal gu ideline sand regu‐
lations servetoprotect theen vironmen tand
mus tbe strictly observe d. 22
Gener alno tes

eq
uipped withall featur esdesc ribed. Thisisalso
th ecase forsy stems andfunc tionsre leva nt to
saf ety. Ther efor e, theeq uipment onyour vehicle
ma ydif ferfr om that inthedescr iption sand illus‐
tra tion s.
The original purchase agreeme ntforyo ur vehicle
cont ains alis tof all ofthesy stems inyour vehi‐
cle.
Should youha ve anyqu estion scon cerning
eq uipment andoper ation, please consult an
aut hor ized Mercedes- BenzCenter.
The Oper ator's Manual andMaint enanc eBook let
ar eim por tant docum ents andshould be kept in
th eve hicle. Ser
vice andvehicl eoper ation Ve
hicl eoper ation outside theUS Aor Cana da When
youar eabr oad withyo ur vehicle, observe
th efo llo wing points:
R service point sor replacemen tpar tsma yno t
be available immediat ely. R
unle aded fuelmayno tbe available forve hi‐
cles withacat alytic converter .Leaded fuel
ma ycause damag eto thecat alytic converter .
R thefuel mayha ve an extreme lylow oct ane
num ber.Un suit able fuelcancause engine
damag e.
Some Mercedes-Benz modelsareav ailable in
Eur ope thro ugh ourEuropean DeliveryPr og ram.
Fo rmor einf ormation, pleaseconsult anauthor‐
ized Mercedes‑B enzservice center,or write to
one ofthefo llo wing address:
in theUS A:
Mer cede s-Benz USA,LLC
Eur opea nDeliv eryDepar tment
One Mercedes-Benz Drive
Sandy Springs, GA30328
in Canada:
Mer cedes-Benz Canada,Inc.
Eur opea nDeliv eryDepar tment
98 Vande rhoof Avenue
To ronto, Ont ario M4G 4C9 Mai
nten anc e Yo
ur cus tomer advisorconf irms theser vice in
th eser vice repor t. Ro
adside Assistan ce The
Mercedes -Benz Roadside Assis tance Pro‐
gr am offers tech nica lhel pin thecase ofa
br eakdo wn.Your calls totheto ll-f reeRo adside
As sis tance Hotline areans weredby our agents
24 hour sa da y,365 days aye ar.
1- 80 0-FO R-MER Cedes (1-800-367-63 72)(US A)
1-8 00-387-0 100(Canada)
Yo ucan find further information inthe
Mer cedes-Ben zRo adside Assis tance Progr am
br oc hu re (US A)orthe"R oadside Assistance"
secti onintheSer vice andWarrant ybook let
(Canad a).Youwill find both intheve hicle docu‐
ment wallet. Chang
eof address orchang eof ow ner ship In
theeve ntofach ang eof addr ess, please send
us the"No tification ofaddr esschang e"inthe 24
Generalno tes

be
tween you, your dealer ,or Mer cedes-Ben z
US A,LLC.
To cont actNHT SA,yo uma ycall theVe hicle
Saf etyHo tlin e to ll-f reeat 1-8 88-327-4 236
(TT Y:1-800-42 4-9153);go tohttps: //
www .safercar .go v;or write to :Ad minis trat or ,
NHT SA,400 SeventhSt reet,SW .,Wa shingt on,
DC 20590, USA.
Yo ucan also obtain other information about
mo torve hicle safetyfrom: http s://
www .saf er car .gov Limit
edWa rranty
* NO
TEDama getotheve hicle arising
fr om violation ofthese oper ating instruc‐
tion s. Damag
eto theve hicle canarise from viola‐
tion ofthese oper ating instruction s.
This damag eis no tco veredeit her bythe
Mer cedes-Ben zim plied warrant yor by the
Ne w‑ orUsed- Vehicle Warrant y. #
Followtheins truction sin these oper at‐
ing instruction son proper operation of
yo ur vehicle aswellas on possible vehi‐
cle damag e. QR
code forre scue card
The QRcode issecur edinthefuel filler flap and
on theopposit eside ontheB-pillar .In theeve nt
of an acci dent, rescue services canusetheQR
code toquickl yfind theappr opriatere scue card
fo ryo ur vehicle. Thecurrent rescue cardcon‐
ta ins themos tim por tant informa tionab ou tyo ur
ve hicle inacom pact form ,e.g. thero utin gof the
electr iclines.
Fu rther information canbeobt ained athttps: //
www .mercedes-benz .de/qr-code. Data
storage Electr
oniccontr olunit s Ele
ctro nic contr oluni tsareins talled inyour vehi‐
cle. Some ofthese areneces saryfo rth esaf e
oper ation ofyour vehicle, whilesome assistyo u when
drivin g(dr iver assis tance systems). In
addition, your vehicle prov ides comfort and
ent ertainm ent func tions,whic har ealso made
possible byelectr oniccontrol units.
Elect ronic contr oluni tscont ain da ta memor ies
whic hcan temp orarily orper manent lystor e
te ch nica linf orma tionab ou tth eve hicle's operat‐
ing stat e, com ponent loads, maintenance
re qu iremen tsand tech nica leve nts orma lfunc‐
tio ns.
In gener al,th is inf ormatio ndocum entsth est at e
of acom ponent part,amodul e,asy stem orthe
sur round ingssuc has:
R Operatin gst atus ofsystem com ponen ts(e.g.
fi ll le ve ls, batt eryst atus ,tir epr essur e)
R Status messagescon cerningth eve hicle or
its individua lcom ponent s(e.g. number of
wheel revo lution s/speed, longitudin alacc el‐
er ation ,lat eral acc eler ation ,displa yof fas‐
te ned seatbe lts)
R Malfunctio nsorfaults inim por tant system
com ponen ts(e.g. lights, brak es)
R Information oneve nts lead ing tovehicle
damag e 30
Gener alno tes

Smar
tKey Ov
ervie wof Smar tKey functio ns &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunat tende din theve hicle,
th ey cou ld:
R Ope ndoo rs,th er eb yendang ering other
per sons orroad user s.
R Getout and bestru ck byoncom ingtraf‐
fi c.
R Ope rate vehicle equipment andbecome
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R Releasing thepar king brak e.
R Changing thetra nsmiss ionposition .
R Startin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eke ywit hyo uand lockth eve hicle. #
Keep theve hicle keyout ofreac hof
ch ildr en. *
NO
TEDama getotheke ycaus edby
magne ticfields #
Keep theke yaw ay from stro ng ma g‐
ne tic fields. %
The Smar tKey ma yva ry from theone shown
in thediagr am,depending ontheve hicle
eq uipment. 1
Locks
2 Indicat orlam p
3 Unloc ks
4 Opens/closes theta ilg ate
5 Panic alar m
% Ifind icatorlam p2 does notlig ht up afte r
pr essing theÜ orß button,thebat‐
te ry isdisc harged.
Re place theSmar tKey batt ery(/ page71 ).
The Smar tKey loc ksand unlocksth efo llo wing
com pone nts:
R The door s
R The fuel filler flap Open
ingand closing 69

R
The tailg ate
If th eve hicle isno topened within appr oximat ely
40 seco ndsafte runloc king,itloc ksagain. Anti-
th eftpr otect ion isactiv ated again.
Do notke ep theSmar tKey toget her withelec‐
tr onic devices orme talobje cts. This canaffect
th eSmar tKey 's functionality .
Do notke ep theSmar tKey inthete mp eratur e-
con trolled cupholder .Ot her wise, theSmar tKey
will notbe reliably detected. Ac
tiv atin g/deac tivatin gthe acoustic lock ing
ve rificat ion signa l Mult
imed iasystem:
4 © 5
Set ting s5
Vehicle #
Activateor deacti vate Acou sticLock . Ac
tiv atin g/deac tivatin gthe pani calar m Re
quirement s:
R The ignit ionisswitc hedoff. %
The panic alarmfunc tion isonl yav ailable in
cer tain coun tries. #
Toactiv ate: press butt on1 forapp rox‐
ima tely one second.
A visual andaudibl ealar mistrigg ered. #
Todeac tivate: briefly pr ess button1 again.
or #
Press thest ar t/ stop butt ononthecoc kpit
(t he Smar tKey isinsid eth eve hicle). Changing
theunloc kingsettings Po
ssible unlockingfunctions oftheSmar tKey :
R Cen tralunlo cking R
Unloc kin gth edr iver's door andfuel filler flap #
Toswitc hbe tw een settings: press the
Ü andß buttonssimul taneousl yfo r
appr oximat elysix seco ndsuntilth eindicat or
lam pflashes twice.
Op tions ifth eunloc kingfunction forth edr iver's
door andfuel filler flap has been selected:
R Tounlo cktheve hicl ece ntr ally:press the
Ü buttontwice.
R Vehicl eswith KEYLESS-GO :if yo uto uc h
th einner surface ofthedoor handle onthe
dr iver's door ,onl yth edr iver's door andfuel
fi ller flap areunlo cked. Deactiv
atingtheSm artK ey functio ns If
yo udo notuse theve hicle oraSmar tKey for
an extende dpe riod oftime, youcan reduce the
ener gycon sum ption ofthere spectiv eSmar tKey .
To do so, deactiv ateth eSmar tKey functions. 70
Openi ngand closi ng