roof MERCEDES-BENZ GLS 2021 User Guide

#
Brief lypress thebutt oninanydir ect ion
dur ing theaut omatic closing process.
The closing process willbestopped. Au
tomatic functionsof the slidi ng sun roof %
The term "slidin gsun roof" also refers to the
panor amaroof wit hpo we rtilt/sli dingpanel .
By push ingorpul ling the0057 button,youcan
int erru pt theaut omatic functions:"Rain closing
func tion when driving" and"Automatic lowe r‐
ing".
Ra inclosing functionwhen driving
Ve hicl eswith apanor amaroof wit hpo we r
til t/s lidin gpane l:If it star ts to rain, thera ised
sliding sunroofwill automat icallybe lowe red
while theve hicle isin mo tion.
Au tomatic lowe ring function
Ve hicl eswith apanor amaroof wit hpo we r
til t/s lidin gpane l:If th esliding sunroofisraised
at there ar,it will automat icallybe lowe red
slightly athigher speeds. Atlow speeds, itwill
be raised again automat ically. &
WARNIN GRisk ofbeco ming trap ped by
aut omat iclowe ring ofthesliding sunroof
At higher speeds, thera ised slidin gsunr oof
will automat icallybe lowe redslightl yat the
re ar. #
Mak esur eth at nobody reac hes intoth e
sliding sunroof's rang eof mo vement
whil eth eve hicle isin mo tion. #
Ifsomebody becomestrapped, brief ly
push thesliding sunroofbutt onfor‐
wa rdsor bac kwards. Pr
oblems withtheslidi ngsunr oof &
WARNIN GRisk ofbeco ming trap ped or
fa ta linj uries when thesliding sunroofis
closed again
If th esliding sunroofisclosed again immedi‐
at ely afte rit has been blockedor rese t,itwill
close withincr eased forc e. #
Mak esur eth at no par tsof thebody are
in theclosing area. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing theaut omatic closing process.
The closing process willbestopped. The
sliding sunroofcanno tbe closed andyou
cann otsee thecaus e.
% The term "slidin gsun roof" also refers to the
panor amaroof wit hpo we rtilt/sli dingpanel .
If th esliding sunroofisobs truct eddur ing closing
and reopens again slightl y: #
Immediat elyaf te rau tomatic reve rsing, pull
and hold the0057 buttondown again tothe
point ofresis tance untilth esliding sunroofis
closed.
The sliding sunroofwill beclosed with
incr eased forc e.
If th esliding sunroofisobs truct edagain and
re opens again slightl y: 88
Opening andclosing

#
Repeat thepr ev ious step.
The sliding sunroofwill beclosed witheve n
gr ea terfo rc e.
Ve hicl eswithout apanor amaroof wit h
po we rtil t/s lidin gpane l:The slidi ng sun roof
is no toper ating smoo thly. #
Resetth esliding sunroof.
Re setting theslidi ngsunr oof #
Push the0057 buttonuptothepoint of
re sis tance repeat edlyuntil thesliding sun‐
ro of isfully open. #
Press the0057 buttonforano ther secon d. #
Close thesliding sunroof.
Ve hicl eswith apanor amaroof wit hpo we r
til t/s lidin gpane l:The slidi ng sun roof or the
ro ller sunblind isno toper ating smoo thly. #
Resetth esliding sunroofand thero ller sun‐
blind.
Re setting theslidi ngsunr oofand thero ller
sunblind #
Pull and hold the0057 buttonlittle bylittle
unt ilth esliding sunroofisfully closed. #
Pull and hold the0057 buttonlittle bylittle
unt ilth ero ller sunblin dis full yclos ed. #
Use automat icopera tiontofully open and
th en close thesliding sunroof. Ro
ller sun blinds Ext
ending orretracti ngthe roller sunblind s
on there ar side windo ws &
WARNIN GRisk ofbeco ming trap ped
whe nex tendi ng orretracti ngthero ller
sunblin d
Body partscould becom etrapped inthe
sw eep ofthero ller sunblin dwhen itis being
ex tende dor retract ed. #
Makesur eth at no body partsarein the
sw eep ofthero ller sunblin dwhen itis
being extende dor retract ed. #
Ifsom eone become strap pe d, briefly
pr ess thebutt onintheopposit edir ec‐
tion .
The opening orclosing process will
br ief lybe stopped. Theroller sunblin d
will then retur nto its star tin gposit ion. *
NO
TEDama gecau sed byobject s Object
scould cause malfunct ionsofthe
ro ller sunblin d. #
Mak esur eth at thero ller sunblin dcan
mo vefreely . The
roller sunblin dsforth ere ar side windows
can beope ratedwit hth ebutt ons forth eside
windo wsinthedr iver's door andinthere ar
door s. Open
ingand closing 89

R
afte runloc kingtheve hicle using KEYLES S-
GO
R when usingHAND S-FREE ACCES S
In fo rm atio non collision detection onapa rked
ve hicle (/page200). Ar
ming/disar mingtheto w- aw ay alar m Mul
timedi asy stem:
4 © 5
Set ting s5
Quick Access #
Arm or disar mTow-away Protection.
The tow- aw ay alar misarmed again inthefo llo w‐
ing cases :
R The vehicle isunloc kedag ain.
R Adoor isopened.
R The vehicle isloc kedag ain.
% Ifqu ick acc ess isuna vailable, selectth e
Vehicle submenu intheSet ting smain menu
to arm or disar mtheto w- aw ay alar m. Fu
nction oftheint erior motion sensor %
This function mayno tbe available inall
coun tries.
When theint erior motion sensor isactiv ated, a
visual andaudible alarmistrigg ered ifmo ve‐
ment isde tected intheve hicle interior .
The interior motion sensor isactiv ated aut omati‐
cally afte rapp roxima tely tenseco nds:
R afte rloc king theve hicle withth eSmar tKey
R afte rloc king theve hicle using KEYLES S-GO
The interior motion sensor isonl yactiv ated
when thefo llo wing compone ntsar eclos ed:
R thedoor s
R theta ilg ate
The interior motion sensor isaut omat icallydeac‐
tiv ated:
R afte rpr essing theÜ or008B buttonon
th eSmar tKey
R afte rpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestor ag ecom partmen t
(/ page16 9) R
afte runloc kingtheve hicle using KEYLES S-
GO
R when usingHAND S-FREE ACCES S
The follo wing situat ionscanlead toafa lse
alar m:
R movingobje ctssuc has masc otsin theve hi‐
cle interior
R when theside windo wisopen
R when thesliding sunroofisopen
R when thepanor amicsliding sunroofisopen Ar
ming/deact ivating theint erior motion sen‐
sor Multi
media system:
4 © 5
Set ting s5
Quick Access #
Activateor deacti vate Interior MotionSen-
sor.
The interior motion sensor isactiv ated again in
th efo llo wing cases :
R The vehicle isunloc kedag ain.
R Adoor isopened. 92
Openin gand closin g

At
tac hin garo of lugg agera ck &
WARNIN GRisk ofacci dent dueto
exc eeding themaximum roof load
The vehicle centerofgrav ity and theusual
dr iving charact eristic sas wellas thesteer ing
and braking charact eristic salt er.
If yo uexc eed themaximum roof load, the
dr iving charact eristic s,as wellas steer ing
and braking, willbegreatl yim pair ed. #
Neverexc eed themaximum roof load
and adjus tyo ur drivin gst yle. Yo
uwill find informa tionon themaximum roof
load inthe"T ec hnical data"sect ion.
* NO
TEVehicle damag efrom non-
appr ovedro of lugg agera ck s The
vehicle could bedamag edbyroof lug‐
ga ge rack sth at have notbe en tested and
appr ovedfo rMer cedes-Benz. #
Use onlyro of lugg agera ck ste sted and
appr ovedfo rMer cedes-Benz. #
Dependi ngon theve hicle equipment,
ensur eth at thesliding sunroofcan be
full yra ised when thero of lugg agera ck
is ins talled. #
Depe ndingon theve hicle equipment,
ensur eth at theta ilg atecan befully
open edwhen thero of lugg agera ck is
ins talled. #
Position theload onthero of lugg age
ra ck insuc hawa yth at theve hicle will
no tsus tain damag eev en when itis in
mo tion . *
NO
TEDama getothepanor amaroof wit h
po we rtilt/sli dingpanel duetonon-
ap prove dro of lugg agera ck s The
panor amaroof wit hpo we rtilt/sli ding
panel maybe dama gedby thero of lugg age
ra ck ifyo uatt em pttoopen itwhen usinga
ro of lugg agera ck notte sted and appr oved
fo rMer cedes-Benz. #
When aro of lugg agera ck isins talled,
open thepanor amaroof wit hpo we r
til t/sl iding panel only ifth is has been te
sted and appr oved forMer cedes-
Benz.
The panor amaroof wit hpo we rtilt/sli ding
panel maybe raised toallo wventil ation of
th eve hicle interior . #
Secur eth ero of lugg agera ck tothero of rail‐
ing. #
Obser vethemanuf acturer'sinstallation
ins truct ions . Cup
holder Switc
hingthecooling orheat ingfunction for
th ete mp eratur e-cont rolled cup holder onor
of f &
WARNIN GRisk ofinju ryby touc hin gth e
heating elements
The cup holder's heatingelements maybe
ve ry hot.
Yo ucan burnyo urself onthem. Seats
andstow ing 13
3

Ad
jus tingthe ambi entlighti ng Mu
ltimed iasystem:
4 © 5
Set ting s5
Light
5 Ambien tLightin g
Se tting thecolor #
Sele ctColor. #
Setth edesir edcolor .
Ad jus tingthe brightne ss #
Select Bright nes s.
Ad jus tth ebr ightn ess.
Ac tiv atin gthe brightne ssforzon es #
Select Brightne ss. #
Select Brightne ssZones .
The ACC ENT, AMBIAN CEand ROOF zone s
can besetsep arately .
Ac tiv atin gmulti -colorlighti ng #
Select Color. #
Select Multi-col or. #
Select acol orcomb ination. Ac
tiv atin gmulti -colorani matio n #
Select Color. #
Select Multi-col orAnima tion.
The chosen color combinat ionwill chang eat
pr edef inedint erva ls.
Ac tiv atin gwe lcome lighting #
Selec tColor. #
Selec tWelcom e.
When theve hicle isunloc ked, aspecial ambi‐
ent lightin gseq uence willrun.
Ac tiv atin gdepe ndencyon air condi tioning
se ttin gs #
Select Color. #
Select Clima te.
If ch ang esaremade tothete mp eratur ese t‐
ting intheve hicle, thecolor oftheambient
lighting willchang ebr ief ly. Switc
hingtheint erior light ingswitc h-of f
dela ytim eon/of f Multi
media system:
4 © 5
Set ting s5
Light
5 Interior Lightin gDelay #
Switc hth eswitc h-offdela ytime onoroff.
When this func tion isact ive, theint erior light‐
ing lights upfora shor ttime afte rth eve hicle
is loc ked. Light
andvisibility 14
9

St
arting theve hicl e(R emo teOnline) &
WARNIN GRisk ofcrus hing orentr ap‐
ment dueto unin tentio nalstar tin gof the
engine
Limbs couldbecrushed ortra pped ifth e
engine isstar tedunint entionall ydur ing
ser vice ormaint enanc ewo rk. #
Alw ayssecur eth eengine agains tunin‐
te ntio nalstar tin gbef orecar rying out
maint enanceorrepair work. Re
quirement s:
R Park position 005Disselect ed.
R The anti- theftalar msystem isno tactiv ated.
R The panic alarmisno tactiv ated.
R The hazar dwa rning light system isswitc hed
of f.
R The hood isclosed.
R The door sar eclosed andlocked.
R The windo wsand slidin gsun roof areclosed. #
Startth eve hicle using thesmar tphon e.
Af tereve ryengine star t,th eengine runs for
te nminu tes.
Yo ucan carryout amaximum oftwoconsec u‐
tiv est ar tin gatt em pts. The vehicle mustbe star‐
te donc ewit hth eSmar tKey bef oretrying to
st ar tth eengine again withth esmar tphon e.you
can stop theve hicle again atanytime.
% Further information canbefound inthe
smar tphone app.
Secur ingtheengine agains tst ar ting before
car rying out maintenance orrepair work: #
Swi tchon thehazar dwa rning light system.
or #
Unloc kth edoor s.
or #
Open aside windo wor thesliding sunroof. Br
eaking-in notes Mer
cede s-AMG vehicl es:obse rveth eno tesin
th eSupplement .Yo uco uld other wise failto rec‐
ogni zedangers. To
preser vetheengine during thefirs t
1, 000 miles(1 ,500 km):
R drive at varying road spee dsand engine
spee ds.
R drive th eve hicle indrive pr ogr am A
or ;.
R shif tto thene xt highes tge ar attheve ry lat‐
es twhen theneedle reac hes thelas tth ird
bef oreth ere dar ea intheta ch ome ter.
R donotshif tdo wn age ar man uallyin order to
br ak e.
R avoidoverstra inin gth eve hicle, e.g.driving at
full thro ttle .
R donotde press theaccelera torpeda lpas t
th epr essur epoint (kickdo wn).
R onlyincr ease theengine speedgradually and
accelera tetheve hicle tofull spee daf te r
1, 000 miles(1 ,500 km).
This also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced. Dr
iving andparking 17
1

Ke
eping theair -water duct free #
Keep thear ea between thehood andthe
winds hieldfree ofdepos its,e.g .ice, snow
and leaves. Cleani
ngand care No
teson washing theve hicl ein acar wash &
WARNIN GRisk ofacci dent dueto
re duced braking effect afte rwa shing the
ve hicle
The braking effect isreduced afte rwa shing
th eve hicle. #
Afterth eve hicle hasbeen washed,
br ak ecar efully whilepaying attention to
th etraf fic condi tions untilth ebr aking
ef fect hasbee nful lyrestor ed. *
NO
TEDama gefrom automatic braking If
one ofthefo llo wing functionsis switc hed
on, theve hicle brak es aut omatically incer‐
ta in situat ions:
R ActiveBr ak eAssi st
R ActiveDis tance AssistDIS TRONI C
R HOLD functio n
R ActivePa rking Assist
To avo iddamag eto theve hicle, deactiv ate
th ese systems inthefo llo wing orsimilar sit‐
uation s: #
Dur ing towing #
Inacar wash *
NO
TEDama gedue touns uitable car
wa sh #
Beforedr iving intoacar wash mak e
sur eth at thecar wash issuit able for
th eve hicle dimensions. #
Ensur eth er eis suf ficie ntgrou nd clear‐
ance between theunderbody andthe
guide rails ofthecar wash. #
Ensur eth at theclear ance widthof the
car wash, inpar ticular thewidt hof the
guide rails, issuf ficie nt. To
avo iddamag eto your vehicle when usinga
car wash, ensur eth efo llo wing beforehand:
R ActiveDis tance AssistDIS TRONI Cand the
HOLD functio nar edea ctivated.
R The surround viewcam eraor there ar vie w
cam erais swit ched off.
R The side windo wsand slidin gsun roof are
com pletely clos ed.
R The outsid emir rors arefo lded in.
R The blowerfo rth eve ntil ation/he ating is
sw itched off.
R The windsh ield wipe rsw itchis in po sitio n
005A.
R The Sma rtKe yis at amin imum distance of
10 ft(3 m) away from theve hicle, other wise
th eta ilg atecould openunintentio nally. 32
8
Ma intena nce and care

1
Front roof area
2 Rear roof area
3 Rear fende rs
On vehicles withapanor amicsliding sunroof,
ins talling anant enn ato thefront orrear roof
ar ea isno tper mitt ed. On
there ar fende rs,it is recomme ndedthat you
ins tallth eant enn aon theside oftheve hicle
closes tto thecent erofthero ad.
Use Tech nica lSpe cifica tionISO/T S21 609 (Road
Ve hicles –"EMCs forins tallation ofafte rm arke t
ra dio freq uency transmit tingeq uipment ")when
re trof itti ng two-w ayradios. Complywithth e
leg alrequ iremen tsforde tach able parts.
If yo ur vehicle hasinstalling fortw o-w ayradio
eq uipment ,use thepo we rsupp lyand antenn a
con nectors prov ided inthepr e-ins tallation .
Obser vethemanuf acturer'ssupplement swhen
ins talling.
Tw o-w ayradio transmi ssion output
The maxi mum transm ission outpu t(PEAK) atthe
base oftheant enn amus tno texc eed theva lues
in thefo llo wing table. Fr
eq uency bandandmaxim um transm ission
out put Fr
eq uency band Maximumtransm is‐
sion output
Sho rtwa ve
3 -54 MHz 10
0W
4 m freq uency band
74 -88 MHz 30
W
2 m frequency band
14 4-17 4MHz 50
W
Te rres trial Trunk ed
Ra dio (TETRA)
380 -460 MHz 10
W
70 cm freq uency
band
420 -450 MHz 35
W
Tw o-w ayradio
(2G/3G/ 4G) 10
W Te
ch nica lda ta 39
1

Mer
cede s‑Maybac h
Ve hicle widthexc luding out‐
side mirrors,min. tomax. 79.9
in
(2030 mm)
Maximu mvehicle height 74.3 in
(1 888 mm)
Mini mum vehicle height (high‐
wa ydr ivin gleve l) 72
.3 in
(1 838 mm)
Whe elba se 123.4 in
(3 13 5mm)
Maxi mum ground clearance 8.2in
(2 10 mm) We
ight sand loads Please
note that forth especif iedvehicle data:
R Items ofoptional equipment increase the
curb weight andreduce thepa yload. Ro
ofload All
mod els
Maxim umroof load 220lb(100 kg) Ru
nning board All
models
Maximum load 440lb (200 kg) Of
f-road driving Fo
rding dep th
* NO
TEDama gecau sed bywaterwhen
fo rd ing Wa
tercan entertheengine compartmen t
and vehicle interior if:
R youexc eed themaximum permissible
fo rd ing dep thwhen drivin gth ro ugh stand‐
ing water
R abo wwav efo rm sdur ing ford ing R
wateraccumu lates dur ing ford ing offlow ‐
ing water #
Donotexc eed themaximum permissi‐
ble ford ing dep thand drive slo wly
th ro ugh thewa ter. The
specif iedvalue indic ates themaximum per‐
missible ford ing dep thfor:
R vehicles that arere ady todrive
R slowdriving thro ugh standi ngwater
Dr iving thro ugh flow ing waterre duces theper‐
missible ford ing dep thdue totheaccumulation
of wa ter.
Obser vetheno teson off-r oad driving andford ‐
ing (/ page17 6). Te
ch nica lda ta 403

On-boar
dcom puter................................. 276
Dis play ing theser vice duedate........... 321
Head-up Displaymenu ........................ 279
Multifunction display........................... 278
Oper ating ...... ....................................... 276
Ov ervie wof menus .............................. 276
On-boar ddiagnos ticsinterface
see Diag nostics con nection
Online services
Dat ast or ag e .......................................... 33
Open-sour cesof tware .............................. 34
Opening thetailg ateusing your foot
HANDS-FREE ACCES S.................... .......7 8
Oper ating fluids
Ad ditiv es(fuel) .................................... 396
Br ak efluid ...........................................3 98
Coo lant (engi ne)....... ........................... 398
Engine oil....... .....................................396
Fu el(gasoline) .....................................3 95
No tes ................................................... 394
Re frig er ant (airconditio ningsystem) ...400
Wi ndsh ield wa sher fluid ...................... 399
Ope ratin gsaf ety
48 Von-boa rdelectr icalsystem ............ 25 Dec
laration ofcon form ity (wir eless
ve hicle component s)........................ ..... 27
EQ boost............. ..................................25
Inf orma tion............. .......................... .....25
Ope ratin gsy stem
see On-bo ardcom puter
Oper ator' sMan ual
Ve hicle equipment ........................... ...... 23
Oper ator's Manual (digital) ......................2 0
Op timiz edacceler ation........................... 172
Ac tivati ng ........... ................................. .172
Ov erhead controlpanel
Ov ervie w .......................................... ...... 12 P
Pa int code ................................................ 392
Pa intw ork(cleaning instructions) .......... 331
Pa nel heating
Se tting ............................................. ..... 111
Pa nic alar m................................................ 68
Ac tivati ng/d eactiv ating ........... ..............68 Pa
nor ama roof wit hpo we rtil t/s lidin g
pane l
see Sliding sunroo f
Pa rk pos ition
Inser ting<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> .............186
Sel ecting automatical ly<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 186
Pa rking
see Elec tric par kingbr ak e
Pa rking aid
see Parking AssistPA RK TRONI C
Pa rking Assis tPA RK TRONI C<0011001100110011001100110011001100110011001100110011001100110011
00110011> 244
Ac tivati ng ........... ................................. 248
Ad jus ting warning tones <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 249
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 244
Sid eim pa ct protect ion ........................ 247
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 248
Sy stem limit ations ...............................2 44
Pa rking assis tance systems
see ActivePa rking Assist
Pa rking brak e
see Elec tric par kingbr ak e
Pa rking foran extended period .............2 00
Pa rking light s...........................................1 43 Inde
x495