2021 MERCEDES-BENZ GLS SUV sunroof

#
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

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

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

Pr
oblem .................................................8 4
Ro ller sunblin d(elect ric) <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 89
Size designatio n(ti res) ........................... 370
Sliding sunroof.......................................... 84
Au tomatic featur es................................ 88
Closin g.................................................. 84
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 83
Ope ning <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 84
Opening withth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 83
Pr obl em <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 88
Ra in-clos ingfeatur e........................ .......8 8
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 67
Ac ous ticlocking verificati onsignal ....... 68
Batt ery <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>69
Ener gyconsu mption........... ...................68
Fe atur es.............. .................................. 67
Ke yring attachme nt<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....69
Mec hanica lke y ...................................... 69
Ov ervie w ................................................ 67
Pa nic alar m <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>68
Pr ob lem <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 70
Un loc kin gse tting .................................. 68
Sma rtKe yfunctions
Deactiv ating.......................................... 68 Smar
tphone
see Smar tphone integr ation ®
see Telephon e
Sma rtphon eint egratio n®
<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 309
Ov ervie w <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 309
Sno wch ains .............................................357
Soc ket(1 2 V) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 135
Fr ont cent erconsole ........................ ... 135
Soc ket(1 15 V) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 136
Re ar passe nger com partment ........ .....1 36
Sof twareupdat e
Sy stem updat es.............................. ..... 290
Sound PRE-S AFE®
Sound ................................. 49
Wheels andtires .............................. ....3 56
Soun dmenu
Fu nctio nsove rview ........................ ...... 320
Spa rewheel
see Collap siblespar ewhee l
see Emerge ncy sparewheel
Specia lseat beltretract or <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> .56
Specialis two rkshop ..................................2 8 Speed
index(tir es) ..................................3 70
Spor tUtili tyVehicl e...... ............................ 29
St andb ymode
Ac tivati ng/d eactiv ating ........... ............201
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>200
St anding lights ........................................ 143
St art-of fassi st
see Optimized acceleration
St art/S topbutt on
Pa rking theve hicle .............................. 194
St artin gth eve hicle ............................. 169
Swi tching onthepo we rsupp lyor
ignition ................................................ 168
St art/s topfunc tion
see ECOstar t/ stop funct ion
St arterbatt ery
Ch argi ng(Remo teOnline) .................... 170
St arting assistance
see Jump -sta rt connecti on
St arting theengine
see Vehicle
St arting-o ffaid
see Hillstar tassis t 500
Inde x