heating MERCEDES-BENZ GLS 2020 User Guide

&
WARNIN GRisk ofskid ding and ofan
acci dent dueto shif ting down onslipper y
ro ad sur faces
If yo ushif tdo wn onslipp eryro ad sur faces to
inc rease theengine braking effect, thedr ive
wheels maylose traction . #
Donotshif tdo wn onslipper yro ad sur‐
fa ces toinc rease theengine braking
ef fect. &
DANG ER Risk offata linj urydue topoi‐
sonous exhaus tga ses
If th eta ilpipe isbloc kedor suf ficie ntventil a‐
tio nis no tpo ssi ble, po isonou sex haus tga ses
suc has carbon monoxidemayent ertheve hi‐
cle. This isthecase when theve hicle
becomes stuc kin snow ,fo rex am ple. #
Keep theta ilpipe andthear ea around
th eve hicle free from snowwhen the
engine orthest atio naryheat erareru n‐
ning . #
Ope nawi ndo won theside oftheve hi‐
cle facing away from thewind toensur e
an adeq uatesupply offresh air. &
WARNIN GRisk ofacci dent andinjury
due tobeing under theinf luence ofalco‐
hol and drugs while driving
Dr iving when under theinf luence ofalcohol
and/or drugs isan extreme lydang erous
combin ation.Even small quant ities ofalco hol
or drugs mayaf fect your reflexe s,per cep tion
and judgment.
The probabi lityofaser ious oreven fata lacc i‐
dent greatl yinc reases ifyo udr ive when
und ertheinf luence ofalcohol ordrugs. #
Donotdr ink alcohol ortake drugs while
dr iving, anddonotallo wan yone to
dr ive who hasbeen drink ing alcohol or
ta king drug s. &
WARNIN GRisk ofacci dent dueto the
br ak esy stem overheating
If yo ulea veyour foot on thebr ak epedal
when driving, thebr ak esy stem mayov er‐
heat.
This increases thebr aking distance and the
br ak esy stem mayeve nfa il. #
Neveruse thebr ak epedal asafo ot re st. #
Donotde press thebr ak epedal andthe
acc elerat orpedal atthesame time
while driving. *
NO
TEWearing out thebr ak elinings by
continu ously dep ressing thebr ak epedal #
Donotdepr essthebr ak epedal contin‐
uousl ywhils tdr iving. #
Touse thebr aking effect of theengine,
shif tto alowe rge ar ingood time. Dr
ivin gand parking 18
7

#
Bring theve hicle toast ands tillby appl ying
th ebr ak epedal. #
Onuphill ordownhill gradients, turnth efront
wheels sothat theve hicle rolls towa rdsth e
curb ifit star ts mo ving. #
App lytheelectr icpar king brak e. #
Engage trans missi on positio n005D inast atio n‐
ar yve hicle withth ebr ak epedal applied
(/ page200). #
Switc hof fth eengine andtheignition by
pr essing button1. #
Release theser vice brak eslo wly. #
Getout oftheve hicle andlockit.
% When youpar kth eve hicle, youcan still
opera tetheside windo wsand thepanor amic
sliding sunroofforapp roxima tely five
minut esifth edr iver's door isclosed.
% When youpar kth eve hicle, youcan still
opera tetheside windo wsand thesliding
sunr oofforapp roxima tely five minut esifth e
dr iver's door isclosed. Gar
agedoor opener Pr
og rammin gbutt onsfo rthe garage doo r
ope ner &
DANG ER Risk ofdeat hcause dby
ex haus tga ses
Combus tionengines emitpoisonous exhaus t
ga ses suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisonin g. #
Neverlea vetheengine or,if pr esent ,
th eauxiliar yheating running inan
encl osedspa cewithout sufficie ntventi‐
la tio n. &
WARNIN GRisk ofinju rywhen opening
or clos ingadoor withth ega rage door
opener
When youoper ateor program thedoor with
th eint egr ated garage door opener ,people in
th era ng eof mo vement ofthedoor may
become trapped orstru ck bythedoor . #
When usingtheint egr ated garage door
opener ,alw aysmak esur eth at nobody
is wit hin thera ng eof mo vement ofthe
door . Onl
yoper ateth efo llo wing doorsusing the
ga rage door opener :
R Door swit hasaf etyst op and reve rsing fea‐
tur e
R Doorswhic hcon form tothecur rent U.S.
sa fety standar ds
Re quirement s:
R The vehicle hasbeen parkedoutside the
ga rage oroutside thera ng eof mo vement of
th edoor .
R The engine isswitc hedoff.
R The ignition isswitc hedon.
% The garage door opener function isalw ays
av ailable whentheignition isswitc hedon. 21
0
Driving and parking

Dif
fere nces betw een differe nt vehicl eleve ls
com paredtothenor malle ve l Ve
hicl e
le ve l Ve
hicl es
without Off-
ro ad pac kage Ve
hicl eswith
Of f-road pack‐
ag e
Ca rwa sh Approx.
+3.5 in
(+90 mm) Appr
ox.+3.5 in
(+90 mm)
Of f-roa d
le ve l+3 Una
vailable Approx.+3.5 in
(+90 mm)
Of f-roa d
le ve l+2 Una
vailable Approx.+2.4 in
(+60 mm)
Of f-roa d
le ve l+1 Appr
ox.
+2.4 in
(+60 mm) Appr
ox.+1 .2 in
(+30 mm)
Spor tA pprox.-0.6 in
(-1 5mm) Appr
ox.-0.6 in
(-1 5mm)
Spor t+A pprox.-1 .0 in
(-25 mm) Appr
ox.-1 .0 in
(-25 mm) Sy
stem limit s
AI RMA TICmayno tbe available orhave onl ylimi‐
te dav ailabilit yin thefo llo wing cases :
R The overheating protect ion has been activa‐
te ddue tofreq uent leve lch ang eswit hin a
shor ttim e.The 00C4 warning lam pappear s
in themultifunc tiondispla y.
Af terth ecooling phase,thesy stem isag ain
av ailable without restriction.
Se tting thevehicl eleve l(v ehicles withAIR‐
MA TIC) &
WARNIN GRisk ofacci dent because
ve hicle leve lis toohigh
If yo udr ive at ahigh ervehicle leve l,th edr iv‐
ing charact eristic sma ybe impair eddue to
th ehigher vehicle centerofgrav ity .
The vehicle candrift outw ards, forex am ple,
when steer ing orcor ner ing. #
Alw aysch oose ave hicle leve lwhic his
suit edtothedr iving style and thero ad
sur face condi tions. &
WARNIN GRisk ofentr apment from vehi‐
cle lowe ring
Whe nlowe ring theve hicle, people could
become trapped ifth eir limbs arebe tween
th eve hicle body andthetir es orunder neath
th eve hicle. #
Mak esur eno one isunder neathth e
ve hicle orintheimmediat evicin ityof
th ewheel arch es when theve hicle is
being lowe red. &
WARNIN GRisk ofbeco ming trap ped
du eto theve hicle lowe ring
Ve hicl eswith AIRMA TICorleve lcontr ol:
when youunlo adlugg ageor lea vetheve hi‐
cle, theve hicle firs trises slightly andthen
re tur ns tothese tle ve lshor tly af te rw ards.
Yo uor anyone else inthevicin ityofthe
wheel arch es ortheunderbody couldthus
bec ome trapped.
The vehicle canalso belowe redaf te rbeing
loc ked. Dr
iving andparking253

#
Onlyins talla ball couplin gth at mee ts
th eper mitt eddimension sand hasbeen
designed forth etrailer operation
re qu iremen ts. #
Donotmodif yth eball coupling orthe
tr ai le rhi tc h. The
values approvedby themanuf acturercan be
fo und ontheidentif ication platesand inthe
"T ec hn ical data"sec tionunde r"T ra iler hitch"for
th eto wing vehicle (/page565). &
WARNIN GSw erving oftheve hicle/
tr ailer combination duetoinc reased
spee d
If th eve hicle/tr ailercombination swerve s,
yo ucan lose contro lof it.
The vehicle/tr ailercombination caneven tip
ove r. #
Under nocircums tances should yo utry
to inc rease thespeed tostra ight enthe
ve hicle/tr ailercombination. #
Reduce speed anddonotcount er-ste er. #
Ifneces sary,appl yth ebr ak es. *
NO
TEDama getotheengine asare sult
of ove rheating #
Ifyo ure trof itatrai le rhi tc h, mod ifica ‐
tio ns totheengine cooling system may
be neces sary,dependin gon theve hicle
model.
When retrof itti ng atrai le rhi tc h, ob serveth e
fa stening pointson thech assis . Re
trof itti ng atrai le rhi tc his pe rm issible onlyif a
trailer loadisspec ified inyour vehicle docu‐
ments. Ifth is is no tth ecase, theve hicle isno t
appr ovedfo rtr ail er oper ation.
Fu rther information canbeobt ained ataqu ali‐
fi ed specialis two rkshop.
If th etrailer coupling isremo vable, itis essent ial
to com plywith theoper ating instruction sof the
tr ai le rcou pling manuf actu rer.
Couple anduncouple thetrailer carefull y.Ifyo u
do notcon nectth etra iler totheto wing vehicle
cor rectl y,thetrailer maybecome detach ed. Obser
vethefo llo wing noteson theto ngu e
we ight :
R Donotuse ato ngu ewe ight that exceed sor
fa lls belo wtheper missible tongu ewe ight
R Use ato ngu ewe ight asclos eas possible to
th emaximum tongu ewe ight
Do notex ceed thefo llo wing values:
R Perm issible trailerload
R Perm issible rear axle load oftheto wing vehi‐
cle
R Perm issible gross weight oftheto wing vehi‐
cle
R Perm issible gros swe ight ofthetra iler
R Maximum permissible speedofthetrailer
En sur eth efo llo wing beforest ar tin gajo ur ne y:
R The tirepr essur eon there ar axle oftheto w‐
ing vehicle issetfo ra maximu mloa d
R The lighting ofthecon nect edtrailer isoper a‐
tion al
In theeve ntofincr eased rear axle load, theve hi‐
cle/tra ilercombination mayno texc eed amaxi‐ Dr
iving andparking 29
7

Ve
hicl evo ice comm ands Vo
ice comm and Colloquialexam ple Function
Temperature colder Iwould liketoreduce thetemper a-
ture Lo
we rsthete mp eratur eof theair con ditionin gsy stem.
Air recirc ulation on Iwould liketoactivat ethe aircirc u-
lation Switc
hesonair recir cul ation mod efo rth eair con ditionin gsy stem.
Autom aticclimate control driver onIwould liketoswitch onthe auto-
matic climate control forthe driv-
er's seat Switc
hesonaut omatic climatecon trol forth edr iver's orfront passeng er
side.
Ambien tlight blue Iwould liketoset the inter iorlight-
ing toblue Switc
hestheambiance light,e.g.toblue.
Wave massage driveron Iwould liketoswitch onthe wave
massage forthe driver' sseat Switc
hesonthewav emassag efo rth edr iver's orfront passeng erseat.
Massage driver'sseatoff Switchthe driver's sidemassage
off Switc
hesoffth emassag efunc tion forth edr iver's orfront passeng erseat.
Seat heating driveron Iwould liketoswitch onthe seat
heating forthe driver's seat Switc
hesontheseat heating forth edr iver's orfront passeng erseat.
Seat heating frontpassenger level
2 Seat
heating front-passenger on
level 2 Se
tstheseat heating forth edr iver's orfront passeng erseat toleve l2. Vo
ice Cont rolSy stem 33
1

No
teson car eof theint erior &
WARNIN GRisk ofinju ryfrom plastic
par tsbreakin gof faf te rth euse ofsol‐
ve nt-ba sedcarepr od ucts
Ca reand cleanin gpr oduc tscon tainin gsol‐
ve nts can causesurfaces inthecoc kpit to
become porous. When
theairbags aredeplo yed, plas ticpar ts
ma ybr eak away. #
Donotus ean ycar eor cle ani ng prod ‐
ucts containing solvents tocle an the
coc kpit. &
WARNIN GRisk ofinju ryor deat hfrom
bleac hedseat belts
Bleac hingordyeing seat belts canseverely
we aken them.
This can, forex am ple, caus eseat beltsto
te ar or failin an acc ident . #
Neverblea chordyeseat belts. Obser
vethefo llo wing informa tion: Cleaning
andcareA voiding vehicl edamag e
Seat belts
Cleanwithluk ewa rmand soap ywa ter. R
Donotus ech emical cleaningag ent s.
R Donotdr yseat belts byheating them toove r17 6°F
(80 °C) orexposing them todirect sunlight .
Displa y
Cleanthesur face car efu llywith amic rofiber clothand asuit ‐
able displa ycar epr oduc t(TF T/L CD). R
Swit choffth edispla yand letit cool down.
R Donotuse anyot her agents.
Plas tictrim R
Clea nwit hadam pmicr ofiber cloth.
R Forhea vysoil ing: useacar epr odu ctrecomme ndedfor
Mer cedes-Ben z. R
Donotatt achsticke rs,fi lms orsimilar materials.
R Donotallo wcos metics,inse ctrepellent orsun cream to
come incont actwith theplas tictrim. 492
Maintenanc eand care

Ti
re pres sur e No
teson tirepr essur e &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntor excess ive tir epr ess ure
Under inflate dor ove rinf late dtir es pose the
fo llo wing risk s:
R The tires ma ybur st,especiall yas the
load andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or
une venly, whic hma ygr ea tly impair tire
traction .
R The drivin gch aract eristic s,as wellas
st eer ing and braking, maybe greatl y
im pair ed. #
Com plywithth ere comme ndedtire
pr ess ureand checkth etir epr essur eof
all tires including thespar ewheel regu‐
lar ly:
R atleas tonce amont h
R when theload chang es R
beforeembar kingon alon gerjour ney
R ifoper ating conditions chang e,e.g .of f-
ro ad drivin g #
Adjus tth etir epr essur eas neces sary. Ti
re pressur ewhic his toohigh ortoolow can:
R Shor tenth eser vice life of thetir es.
R Cause increased tiredamag e.
R Adversely affect drivi ng charact eristic sand
th us drivin gsaf ety, e.g. due tohydroplaning. &
WARNIN GRisk ofan acci dent dueto
insuf ficie nttirepr ess ure
Ti re swit hpr essur eth at istoolow can over‐
heat andburstas are sult.
In addition, they also sufferfr om excessiv e
and/or irre gular wear,whic hcan significan tly
im pair thebr aking proper tiesand thehan‐
dling charact eristic s. #
Avoid excessiv elylow tirepr essur esin
all thetir es, including thespar ewheel. Ti
re pressur ewhic his toolow can cause:
R Tire faults asare sult ofoverheating.
R Impair edhandling charact eristic s.
R Irre gular wear.
R Incr eased fuelconsum ption. &
WARNIN GRisk ofacci dent from exces‐
siv etir epr essur e
Ti re swit hexc essiv elyhigh pressur ecan
bur stbecause they aredamag edmor eeasil y
by highw ayfill, po tholes etc.
In addition, they also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. #
Avoid excessiv elyhigh tirepr essur esin
all thetir es, including thespar ewheel. Ti
re pressur ewhic his toohigh cancause:
R Increased brakin gdis tance
R Impaired handl ing charact eristic s
R Irre gular wear Whee
lsand tires 51
5

and
one-h alftim esaswellon thego vernment
te st trac kas atir egr ad ed 100.
The relativ eper form anc eof tires depen dsupon
th eactual conditions oftheir use, howe ver,and
ma ydepar tsign ifican tly from thenor mdue to
va riatio nsindrivin ghabit s,ser vicepr act icesand
dif fere nces inroad charact eristic sand climate
con dition s.
Tr actio ngr ade &
DANG ER Risk ofacc iden tdue toinade‐
qu atetract ion
The tract ion grade assig nedtothis tireis
based onstra ight -ahead brakin gtract ion
te sts, and does notinclude either acceler a‐
tion, corner ing, hydroplaning orpeak traction
ch aract eristic s. #
Alw aysadap tyo ur drivin gst yle and
dr ive at aspeed tosuit thepr ev ailin g
traf fic and weather condition s. *
NO
TEDama getothedr ivet ra in from
wheelspin #
Avoid wheelspin. The
traction classes, from highes tto lowe st,ar e
AA ,A, Band C.Tho segrad es repr esent thetir e's
ability tostop onwetpa vement asmeasu red
und ercontro lled condition son spec ified govern‐
ment test sur faces ofasp haltand concr ete. A
tir emar kedC ma yha ve poor traction perform ‐
anc e.
Te mp eratur egr ade &
WARNIN GRisk ofacci dent from tire
ove rheating andtirefa ilur e
The temp eratur egr ade forth is tireis es tab‐
lished fora tir eth at isproper lyinflat ed and
no tove rloaded. Excessiv espeed, underinfla‐
tion, orexc essiv eloading, either separ ately
or incombin ation,cancause excessiv eheat
build-up andpossible tirefa ilur e. #
Obser vethere comme ndedtirepr es‐
su resand regular lych eckth etir epr es‐ sur
eof all tires including thespar e
wheel. #
Adjus tth etir epr essur eas neces sary. The
temp eratur egr ades areA (the highes t),B
and C.The yre pr esent thetir e's resis tance tothe
ge ner ation ofhea tand itsability todissipat e
heat when tested under controlled conditions on
a specif iedindoor laborator yte st wheel. Sus‐
ta ined hightemp eratur ecan cause themat erial
of thetir eto deg ener ateand reduce tirelife, and
exc essiv ete mp eratur ecan lead tosudden tire
fa ilur e.Grade Ccor responds toaleve lof per‐
fo rm anc ewhic hall passe nger car tires mus t
mee tunde rth eFe der alMo torSaf etySt andar d
No. 109. Grade sB and Arepr esent higher leve ls
of per form anc eon thelabor ator yte st wheel
th an theminimum requ ired bylaw. DO
T,Tire Iden tificat ionNumbe r(TI N) US
tirere gulations stipulat eth at eve rytire man‐
uf actu reror retrea de rmu stimprint aTIN inor
on theside wallof eac htir epr oduced. Wheels
andtires 52
7

Inf
ormation oncoolant isavailable atthefo l‐
lo wing locations:
R IntheMer cedes- BenzSpecif ication sfo r
Oper ating Fluids 310.1:
- Athttps: //bevo.mer cedes-b enz.com
- IntheMer cedes- BenzBeVoapp
R Ataqu alif ied spec ialistwo rkshop *
NO
TEOverhea ting athigh outsid ete m‐
per atur es If
an inapp ropr iat ecoolant isused, the
engine cooling system isno tsuf ficie ntlypr o‐
te cted agains tov erheating andcorrosion at
high outside temp eratur es. #
Alw aysuse coolant approvedby
Mer cedes-Ben z. #
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
(/ page55 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. Te
ch nica lda ta 559

Ve
hicl e Dis
playmessag es
Possible causes/conseq uencesand0050 0050
Solutions
Update Successfully Com-
pleted *I
nstallation ofthesof twareupdat ehas been success fullycompleted(/ page37 7).
Up dat eFa iledSoftw are
Re mai nsUncha nged *A
ner ro roccur reddur ing theins tallation ofthesof twareupdat e(/ page37 7).
Th epr ev ious softwareve rsion remains inpla ce.
Upda teFail ed *A
ner ro roccur reddur ing theins tallation ofthesof twareupdat e(/ page37 7).
Ma keaMer cedesme call viatheove rhead control panel (/page44 2).
0072
Vehi cleRea dytoDrive
Switch theIgnitio nOff
Before Exiting *Y
ouarelea ving theve hicle when itis in are ady -to- dr ive st at e. #
When youlea vetheve hicle, switchof fth eignition ,secur eth eve hicle agains tro lling away and taketh eSmar t‐
Ke ywit hyo u. #
Ifyo udo notlea vetheve hicle, switchof fth eelectr icalconsumer s,e.g. theseat heating. Other wise, the12 V
batt eryma ydisc hargeand itwill then be possible tostar tth eve hicle onlywit hth eaid ofasecon dbatt ery
(s ta rting assis tance) .
Ru nning BoardsNot Retrac -
ted PayAttentio nto
Excess Width ofVeh icle *M
ercedes- Maybac hve hicles: theru nning boards areno tre tract ed.
R The running boards canberetract edvia themultimedia system onlywhen theve hicle isstatio nary
(/ page79).
R The running boards andtheside skirtmus tbe free ofdir t,ice and snow.Other wise, they areunabl eto retract. #
Clea nth eru nning boards (/page 490). 57
6
Display messa gesand warning/ indic ator lam ps