trunk MERCEDES-BENZ GLS 2021 Owners Manual

#
Hold theseat belttongu eand guide ba ck to
th eseat beltoutle t. Ins
talling aLA TC H-type (ISOFI X)child
re stra int system onthere ar seat Ins
tallingaLA TC H-type (ISOFI X)child
re stra int system onthere ar seat &
WARNIN GRisk ofacci dent ifth ere ar
ben chseat, rear seat andseat backres t
ar eno teng aged
The rear ben chseat, rear seat andseat back‐
re st ma yfo ld forw ards, evenwh en youar e
dr ivin g.
R Asare sult, theve hicle occupant willbe
pushed intoth eseat beltwithincr eased
fo rc e. The seat beltwillnotbe able to
pr otect asintended andcould cause
additional injury.
R Objects orloads inthetrunk orcar go
com partmen twill notbe restra ined by
th eseat backres t. #
Mak esur eth at there ar ben chseat, the
re ar seat andtheseat backres tar e
eng aged bef oreeve rytrip . If
th eseat backres tis no teng aged and lockedin
place, this will besho wnonthemultifunc tion
displa yon theins trument cluster(fold rear seat
bac kelec tricall y)or there dloc kve rificati onindi ‐
cat orwillbe visible (fold rear seat backmec hani‐
call y). &
WARNIN GRisk ofinju ryor deat hif th e
per missible gross mass ofthech ild and
ch ild restra int system isexc eeded
To omuc hload maybe placed ontheLA TC H-
type (ISOFIX )ch ild seat secur ingsystems
and thech ild ma yno tbe restra ined inthe
ev ent ofan acciden t,forex am ple. #
Ifth ech ild and thech ild restra int sys‐
te m toget her weigh mor eth an theper‐
missible gross mass of73 lb(33 kg),
use onlya LA TC H-type (ISOFIX )ch ild
re stra int system that sec ures thech ild
wit hth eve hicle seatbelt. #
Also secur eth ech ild restra int system
wit hth eTo pTe ther belt, ifav ailable. Alw
ayscom plywit hth einf ormation aboutthe
mass ofthech ild restra int system:
R inthemanuf acturer'sinstallation andoper at‐
ing instruct ions forth ech ild restra int system
used
R onalabel onthech ild restra int system, if
pr esent
Re gular lych eckth at theper missible gross mass
of thech ild and child restra int system isstill
com plied with.
When installing ach ild restra int system, obser ve
th efo llo wing:
0073 Alw
aysobser vethecor rect useof theseats
and consider their suit ability foratt aching a
ch ild restra int system.
0073 Alw
ayscom plywithth emanuf acturer's
ins tallation andoper atingins truct ions for
th ech ild restra int system used. Occ
upant safety 57

#
Ifnecessar y,slide head restra int 1 upw ards
(/ page10 5). #
Installth eLA TC H-type (ISOFIX )ch ild restra int
sy stem withTo pTe ther.Com plywit hth e
ch ild restra int system manuf acturer'sinstal‐
lation instruct ions . #
Guide TopTe ther belt 5under head
re stra int 1 between thetw ohead restra int
bar s. #
Ifcar gocom partment cover3 isins talled,
guide TopTe ther belt 5down wards
be tween cargocom partmen tco ver3 and
seat backres t2. #
Hook TopTe ther hook 6ofTopTe ther belt
5 intoTo pTe ther anc horage4 without
twis ting. #
Tensi on TopTe ther belt 5.Com plywit hth e
ch ild restra int system manuf acturer'sinstal‐
lation instruct ions . #
Ifnec essar y,slide head restra int 1 down‐
wa rds(/ page10 5). Makesur eth at youdo
no tint erfere wit hth ecor rect routin gof Top
Te ther belt 5. Secur
ingthech ild restra int system withth e
seat belt Secur
ingthech ild restra int system withth e
seat beltonthere ar seat &
WARNIN GRisk ofacci dent ifth ere ar
ben chseat, rear seat andseat backres t
ar eno teng aged
The rear ben chseat, rear seat andseat back‐
re st ma yfo ld forw ards, evenwh en youar e
dr ivin g. R
Asare sult, theve hicle occupant willbe
pushed intoth eseat beltwithincr eased
fo rc e. The seat beltwillnotbe able to
pr otect asintended andcould cause
additional injury.
R Objects orloads inthetrunk orcar go
com partmen twill notbe restra ined by
th eseat backres t. #
Mak esur eth at there ar ben chseat, the
re ar seat andtheseat backres tar e
eng aged bef oreeve rytrip . If
th eseat backres tis no teng aged and lockedin
place, this will besho wnonthemultifunc tion
displa yon theins trument cluster(fold rear seat
bac kelec tricall y)or there dloc kve rificati onindi ‐
cat orwillbe visible (fold rear seat backmec hani‐
call y).
Wh eninstallin gabelt -secu redch ild
re stra int system, obser vethefo llo wing:
0073 Alw
ayscom plywit hth emanuf acturer's
ins tallation andoper atingins truct ions for
th ech ild restra int system used. Occ
upant safety 61

(3
m) away from theve hicle insuc hsit‐
uations. When
making thekic king movement, makesur e
th at youar est andi ngfirm lyon thegr ound. You
cou ldother wise loseyour balan ce,e.g.on ice.
Obs erve thefo llo wing notes:
R The Smar tKey isbehin dth eve hicle.
R Stand atleas t12 in(30 cm) away from the
ve hicle while perform ing thekic king move‐
ment.
R Donotcome intocont actwithth ebum per
while making thekic king movement.
R Donotcar ryout thekic king movement too
slo wly.
R The kicking movement mustbe towa rdsth e
ve hicle andbackag ain. 1
Detection rang eof thesensor s
If se veralcon secut ive kic kin gmo vements are
no tsuccessfu l,wa itte nseco nds.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing cases :
R The sensorsar edir ty,e.g. due toroad salt or
sn ow .
R The kicking movement ismade using apr os‐
th etic leg. The
tailg atecan open orclos eunin tentio nallyin
th efo llo wing situat ions:
R Ifaper son 'sarms orlegs aremo vingin the
sensor detection rang e, e.g .wh en polishi ng
th eve hicle orpic king upobjects .
R Ifobject sar emo vedor placed behind the
ve hicle, e.g.tensi oni ng stra ps orlugg age.
R Ifclam ping stra ps, tarp sor other coverings
ar epu lled ove rth ebum per.
R Ifapr otect ive mat withalengt hre ac hin g
ov er thetrunk silldown intoth ede tection
ra ng eof thesensor sis used.
R Ifth epr otect ive mat isno tsecur edcor rectly .
R Whe nwo rking onthetra iler hitch,tra iler sor
re ar bicy clerack s.
Deactiv ateth eSmar tKey functions (/page68)
or do notcar rytheSmar tKey about your per son
in suc hsit uatio ns. Open
ingand closing 79

11
5V soc ketin thecent ercons oleofthere ar
passe nger com partment (Mer cedes-Ma ybac h4-
seat vehicles) #
Mer cedes-Ma ybachve hicles withindividua l
re ar seat s:open thestor ag ecom partmen tof
th ecent ercon sole ofthere ar passe nger
com partment . #
Open flap 3. #
Inser tth eplug ofthede vice into11 5V
soc ket1.
Wh entheon- boar delectr icalsystem voltag e
is suf ficie nt, indi catorlamp 2light sup. Ov
ervie wof USB ports Depe
ndingon theve hicle equipment, theve hicle
has thefo llo wing USBports:
R Inthestor ag ecom partmen tof thecoc kpit
ar mr est(/ page12 2)
R Inthefront cent ercon sole next to themobile
phone stor ag ecom partmen t
R Inthere ar passe nger com partment center
conso le
R Vehicles withRe ar Comf ortPa ckag e: inthe
cent erarmr estof thesecon drow ofseats in
th ere ar com partment
R Mer cedes-Ma ybac hve hicles with5 seats in
th ere ar passe nger com partment :in thecen‐
te rar mr estin there ar passe nger com part‐
men t R
Mer cedes-Ma ybac hve hicles withindividua l
re ar seat s:in thecent ercon sole ofthere ar
passe nger com partment
R Vehicles withth re erow sof seats: totheright
and leftne xt to theseat
If th eignition isswitc hedonyoucan charge USB
de vices, e.g.mobile phones, atUSB ports.The
ch argin gvo ltag eis appr oximat ely5 V (up to
3 A). Re
frig er ator box Usin
gth ere frig er ator box &
WARNIN GRisk offire due toaco vered
ve nt grille on there frig er ator box
If yo uco verth eve nt grille forth ere frig er ator
bo x,itma yov erheat. #
Alw aysmak esur eth at theve nt grille is
no tco vered. The
ventil ation grille forth ere frig er ator boxis in
th etrunk . Seats
andstow ing 13
7

#
Toswitc hof f:pr ess butt on2 repeat edly
until both indic ator lam psgo out. Wi
reless chargin gof themobil eph one and
connecti onwit hth eex terior ant enna No
teson wir elessl ych argin gth emobil e
ph one &
WARNIN GRisk ofinju rydue toobject s
being stowe dincor rectl y
If obje ctsintheve hicle interior arestowe d
inc orrectly ,th ey can slide orbe throw n
ar oun dand hitvehicle occupants. Inaddi‐
tion, cupholder s,open stow agespac esand
mobi lephon ere cep tacle scanno tal wa ys
re tain all obje ctswit hin.
Ther eis arisk ofinjur y,par ticular lyin the
ev ent ofsudden braking orasudden chang e
in dir ect ion. #
Alw aysst ow object sso that they can‐
no tbe throw nar ou nd insuch situa‐
tions. #
Alw aysmak esur eth at obj ect sdo not
pr otru de from stow agespac es,parcel
ne ts or stow agene ts. #
Close theloc kable stow agespac es
bef orest ar tin gajo ur ne y. #
Alw aysst ow and securehea vy,har d,
poin ted, shar p-edg ed,fragile orbulky
objec tsinthetrunk/ cargocom part‐
ment . Obser
vetheno teson loadi ngtheve hicle. &
WARNIN GRisk offire from placing
objects inthemobile phonestor ag e
com partmen t
Placing other object sin themobile phone
st or ag ecom partmen tcould constituteafire
hazar d. #
Apar tfr om amobile phone, donot
place anyot her object sin themobile
phone stor ag ecom partmen t,especiall y
th ose made ofme tal. *
NO
TEDama getoobject scaused by
placing them inthemobile phonestor‐
ag ecom partmen t If
object sar eplaced inthemobile phone
st or ag ecom partmen t,th ey ma ybe dama ged
by electr omagne ticfields. #
Donotplace credit cards, datast or ag e
de vices, skipasses orother object s
sensitiv eto electr omagne ticfields in
th emobile phonestor ag ecom part‐
ment . *
NO
TEDama getothemobile phone
st ow agecom partment caus edbyliquids If
liq uids enterthemobile phonestow age
com partment ,th ecom partmen tma ybe
damag ed. #
Ensur eth at no liquids enterthemobile
phone stow agecom partment . Alw
aysobser vetheno tesfo rper sons withelec‐
tr onic medica laid s(/ page29). Seats
andstow ing 13
9

is
de tected, theL symbol appearsin the
media display. Ifth edr iver does notre spond to
th ewa rning, theve hicle's brak es can beappli ed
aut omaticall y.
If th era dar sensor sar eobs truct edbyvehicles
or other object s,de tection isno tpos sible.
Cr oss Traf fic Aler tis acti veund erthefo llo wing
con dition s:
R Ifth eve hicle isbac king upatwa lkin gpace.
R Ifth emaneuv ering assis tant func tionis acti ‐
va tedin themultimedia system.
Sy stem limit s
Cr oss Traf fic Aler tis no tav ailable onincline s.
Cr oss Traf fic Aler tis no tav ailable whendrivin g
wit hatrailer .
Ac tiv atin g/deac tivatin gmane uveringass is‐
ta nc e
Mu ltimed iasystem:
4 © 5
Set ting s5
Assist ance
5 Camera &Parkin g #
Switc hManeuverin gAssist anceonoroff. %
Maneuv ering assis tance mustbe activ efo r
th efunc tion ofDrive Aw ayAssi st
( / pag e260). AT
TENTI ONASSIST Fu
nction ofATTENTI ONASSIST
AT TENTION ASSISTassis tsyouon long,mon oto‐
nous journeys,e.g. onhighw aysand trunk roads.
If AT TENTION ASSISTde tects indicatorsof fati‐
gu eor incr easing laps es inconce ntration onthe
par tof thedr iver ,it sugg ests taking abr ea k.
AT TENTION ASSISTis onl yan aid. Itcann ot
alw aysde tect fatig ue orlaps es inconce ntration
in tim e.The system isno ta subs titutefo ra we ll-
re sted and attent ive dr iver .On long journeys,
ta ke regular break sin good timethat allo wfor
adeq uatere cup erati on.
Yo ucan choose between twose ttings:
R Standar d:nor mal system sensit ivity.
R Sensitiv e:higher system sensit ivity.The
dr iver iswa rned ear lier and theatt ent ion
le ve lde tected byATTENTION ASSISTis adap‐
te daccor dingly. If
dr ow siness orincr easing lapsesinconcen tra‐
tion arede tected, theATTE NTION ASSIS T:Take
a Break !wa rning appear sin theIns trument Dis‐
pla y.Yo ucan ackn ow ledg eth emessag eand
tak eabr eak wher eneces sary.Ifyo udo notta ke
a br eak and ATTENTION ASSISTcont inues to
de tect incr easing lapse sin concentr ation, you
will bewarned again afte ra minimu mof
15 minut es. Yo
ucan have thefo llo wing status informat ionfor
AT TENTION ASSISTdispla yedin theassis tance
menu oftheon- boar dcom puter:
R The lengt hof thejour neysince thelas t
br eak . Dr
iving andparking 26
1

Te
lephone Te
lephon y No
teson telephon y &
WARNIN GRisk ofdist ra ction from oper‐
ati ng integr ated commu nication equip‐
ment whiletheve hicle isin mo tion
If yo uoper ateco mm unic ationeq uipme nt
int egrat edintheve hicle when driving, you
will bedistract edfrom thetra ffic situat ion.
This could alsocause youto lose control of
th eve hicle. #
Onlyoper ateth is eq uipmen twhen the
tr af fic situ ation per mits. #
Ifyo ucan notbe sur eof this, stop the
ve hicle whilstpa ying attention toroad
and traffic condi tions andoperate the
eq uipment withth eve hicle statio nary. &
WARNIN GRisk ofan acci dent from
ope rating mob ile comm unicati onequip ‐
ment while th eve hicle isin mo tion
Mobile communication sde vices distract the
dr iver from thetraf fic situ ation. Thiscou ld
al so cau sethedr iver tolose control of the
ve hicle. #
Asthedr iver ,onl yoper atemobile com‐
municat ionsdevices when theve hicle is
st atio nary. #
Asave hicle occupant, onlyuse mobile
communication sde vices inthear eas
int ended forth is pur pose, e.g.inthe
re ar passe nger com partment . Yo
umus tobse rveth eleg alrequ iremen tsforth e
cou ntryin whi chyouar ecur rentl ydr ivi ng when
op erati ng mob ile comm unicati onequip ment in
th eve hicle. &
WARNIN GRisk ofinju rydue toobject s
being stowe dinco rrect ly
If objects intheve hicle interior arestowe d
inc orrectly ,th ey can slide orbe throw n
ar oun dand hitvehicle occupants. Inaddi‐
tion, cupholder s,open stow agespac esand
mobi lephon ere cep tacle scanno tal wa ys
re tain all obje ctswit hin.
Ther eis arisk ofinjur y,par ticular lyin the
ev ent ofsudden braking orasudden chang e
in dir ect ion. #
Alw aysst ow object sso that they can‐
no tbe throw nar ou nd insuch situa‐
tions. #
Alw aysmak esur eth at obj ect sdo not
pr otru de from stow agespac es,parcel
ne ts or stow agene ts. #
Close theloc kable stow agespac es
bef orest ar tin gajo ur ne y. #
Alw aysst ow and securehea vy,har d,
poin ted, shar p-edg ed,fragile orbulky
objec tsinthetrunk/ cargocom part‐
ment . MBUX
multimedia system 299

Re
mo ving the collapsi blespar ewh eel The
collaps ible sparewh eelis locat ed und erthe
cargo compartment floor . #
Obser vetheinf ormation onmount ingtires
(/ page37 5). #
Open theta ilg ate. #
Open thecar gocom partmen tfloor . #
Remo vethecollapsible sparewheel.
Mer cedes‑Ma ybachve hicl es
Wi thout refrig er ator box:The colla psiblespar e
whee lis locat edinthecollapsible sparewheel
bag onthecar gocom partmen tfloor . #
Obser vetheno teson mounting tires
(/ page37 5). #
Open thecar gocom partmen t. #
Detach thesecur ingstra ps. #
Unhook there tainin gspr ing hook sof the
secur ingstra ps from thebr ac kets. #
Remo vethecollapsible sparewheel bag
to ge ther wit hth ecollapsible sparewheel. #
Open thecollapsible sparewheel bagand
re mo vethecollapsible sparewheel.
Wi th refrig er ator box:The colla psiblespar e
whee lis locat edinthecollapsible sparewheel
bag inside theopen cargocom partmen tfloor . #
Obser vetheinf ormation onmount ingtires
(/ page37 5). #
Open thecar gocom partmen t. #
Detach thesecur ingstra ps. #
Unhook there tainin gspr ing hook sof the
secur ingstra ps from thebr ac kets. #
Remo vethecollapsible sparewheel bag
to ge ther wit hth ecollapsible sparewheel. #
Open thecollapsible sparewheel bagand
re mo vethecollapsible sparewheel. Inflating
thecollap siblesparewheel Re
quirement s:
R Mount thecollapsible sparewheel asdescr i‐
bed (/page383). R
Remo vethetir einf lation compressor from
th estor ag ewe llunder thetrunk floor
(/ page339).
* NO
TEDama getothecollapsible spare
wheel whenlowe ring theve hicle Lo
we ring theve hicle without prev iousl y
inf latin gth ecollapsible sparewheel can
damag eits rim. #
Inflateth ecollapsible sparewheel using
th etir einf lation compressor before
lo we ring theve hicle. *
NO
TEOverhea ting dueto thetir einf la‐
tion compressor running toolong #
Donotru nth etir einf lation compressor
fo rlong erthan tenminu teswit hout
int erru ption. 388
Wheels andtires

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

The
follo wing canbeused intheve hicle without
re strictions :
R two-w ayradios withamaximum transmis sion
output ofup to100mW
R RFtransmi tter swit htransmi tter freq uenci es
in the380 -41 0MHz freq uency bandanda
maximu mtransmi ssionoutpu tof up to2W
(tr unk edradio system/T etra )
R mobil ephones (2G/3G/4G)
Ther ear eno restrictions whenpos itioning the
ant enn aon theoutside oftheve hicle forsome
wa vebands.
R Terres trial Trunk edRadio (TETRA)
R 70cm freq uency band
R 2G/3G/ 4G Ve
hicl eiden tificati onplat e,VIN and engine
number overview
Ve hicl eiden tificati onplat e Ve
hicle identif ication plate(US Aonl y)
1 Maximum permissible gross vehicle weight
2 Maxim umpermissib lefront axle load
3 Maxim umpermissib lerear axle load
4 Paint code
5 VIN (vehicle identificat ion numb er) 392
Tech nica lda ta