2021 MERCEDES-BENZ GLS SUV wheel size

No
teson rotat ing whee ls &
WARNIN GRisk ofinju rythro ugh differ‐
ent whee lsizes
Int erch ang ingthefront and rear wheels ifth e
wheels ortires have differe nt dimens ions
ma yse verely im pa irth edr iving charact eris‐
tic s.
The wheel brak es orwheel suspension com ‐
pon entsma yalso bedamag ed. #
Rotate front and rear wheels onlyifth e
wheels andtires areof thesame dimen‐
sions. The
wearpat tern son thefront and rear wheels
dif fer:
R Front wheels wearmor eon theshoulder of
th etir e
R Rear wheels wearmor eat thecent erofthe
tir e
Do notdr ive wi th tires that have toolittle tread
dep th.Thi ssig nifica ntlyre duces traction onwet
ro ads (hydr oplan ing). On
vehicles that have thesame sizefront and
re ar wheels ,ro tat eth ewheels accordingtothe
int erva ls in thetir emanuf acturer'swarrant y
book inyour vehicle documents. Ifth is is no t
av ailable, rotate thetir es every
3,000 to6,000 miles(5 ,000 to10,000 km),
dependin gon thewe ar.En sur eth at thedir ect ion
of rotatio nis ma intained .
Ob serveth eins truction sand safetyno teson
"Cha nging awheel" whendoing so
(/ page37 9). No
teson sto ring wheels When
stor ing wheels, observethefo llo wing
no tes:
R Afterre mo ving whee ls,stor eth em inacool,
dr yand prefer ably darkplace.
R Protect thetir es from contact with oil, grease
or fuel. Ov
ervie wof thetir e-c han getool kit Apar
tfr om some country- specif icvariant s,vehi‐
cles areno teq uipped withatir e-c hang eto ol kit. Fo
rmor einf ormation onwhi chtools are
re qu ired and appr ovedto per form awheel
ch ang eon your vehicle, consult aqu alif ied spe‐
cialis two rkshop.
Re quired tire-c hang eto ols mayinclude, for
ex am ple:
R Jack
R Choc k
R Lugwr enc h
Ti re -cha ngeto ol kit 1 islocat edunder the
cargo compartment floor . The
tire-c hang eto ol kit includes thefo llo wing:
R Jack 37
8
Wheels andtires

Emer
gency spar ewheel No
teson theemer gency spar ewheel &
WARNIN GRisk ofacci dent caused by
inc orrect whe eland tiredimensi ons
The wheelor tiresize andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydif fer. The
emer gency sparewheel orspar ewheel can
sign ifican tly im pair drivin gch aract eristic sof
th eve hicle.
To preve nthazardous situa tions: #
Adaptyo ur drivin gst yle accor dinglyand
dr ive car efull y. #
Neverins tallmor eth an oneemer gency
spa rewheel orspar ewheel that dif fers
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel ofadif fere nt size briefly. #
Donotsw itchof fESP ®
. #
Have theemer gency sparewheel or
spar ewheel ofadif fere nt size replaced
at thenear estqu alif ied spec ialistwo rk‐ shop.
Thenewwheel mustha ve the
cor rect dimensi ons. %
The eme rgency sparewheel isfastened in
th ecar gocom partmen tunder thecar go
com partmen tfloor .
% Notfo rMer cedes-Ma ybachvehicles.
Obser vethefo llo wing noteson remo ving an
emerg encysparewhee l:
R Beforestow ing theemer gency sparewheel,
mak esur eth er eis no air leftin thetir e.
If neces sary,allo wtheair toescape.
R Torelease airfrom thetir e: remo vethe
va lve cap ofthetir e.
R Press down theme talinse rtin theva lve
using apoint edobje ct,e.g. apen.
R Screw theva lve cap ontoth eva lve.
Obser vethefo llo wing noteson installing an
emer gency sparewheel:
R Chec kth etir epr essur eof theemer gency
spa rewheel installed. Correct thepr essur e
as neces sary. R
The maximum permissible speedwithan
emer gency sparewheel installed is50 mph
(80 km/ h).
R Donotins tallsno wch ains ontheemer gency
spa rewheel.
R Replace theemer gency sparewheel afte rsix
ye arsat thelat est,re ga rdless ofwe ar.
% Ve
hicl eswith atir epr ess uremonit oring
sy stem: Ifan emer gency sparewheel is
ins talled, thetir epr essur emonit oring sys‐
te m canno tfunction reliabl y.Fo ra fe w
minut esafte ran emerg encysparewhee lis
ins talled, thesy stem mayst ill displa yth etir e
pr essur eof there mo vedwheel. Onlyre star t
th esy stem again when theemer gency spare
wheel hasbeen replaced withane wwheel.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page35 7)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page36 3)
R Tire pressur eta ble (/ page359 )
R Noteson installing tires (/ page37 5) Whee
lsand tires 385

#
Unscr ew unio nnut 2offiller hose 1from
th eva lve. #
Screw theva lve cap oftheemer gency spare
wheel ontoth eva lve ag ain. #
Storefiller hose 1and plug 3inthelowe r
section ofthetir einf lation compressor hous‐
ing. #
Storeth etir einf lation compressor inthe
ve hicle. Collapsible
sparewheel No
teson thecollap siblesparewheel &
WARNIN GRisk ofacci dent caused by
inc orrect whe eland tiredimensi ons
The wheelor tiresize andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydif fer. Mount‐
ing anemer gency sparewheel/ sparewheel
ma yse verely im pa irth edr iving charact eris‐
tic s.
To preve nthazardous situa tions: #
Adaptyo ur drivin gst yle accor dinglyand
dr ive car efull y. #
Nevermount moreth an oneemer gency
spa rewheel orspar ewheel that dif fers
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel ofadif fere nt size briefly. #
Donotsw itchof fESP ®
. #
>Ha vetheemer gency sparewheel or
spar ewheel ofadif fere nt size replaced
at thenear estqu alif ied spec ialistwo rk‐
shop. Thenewwheel mustha ve the
cor rect dimensi ons. The
collapsib lespa rewheel isan emer gency
spa rewheel whichis onl ysuit able foruse fora
limi tedper iod oftime andinare strict ed manne r
in theeve ntofaflat tire(e. g.unt ilth enear est
wo rkshop).
The tireside walls arefo lded when intranspo rt
mode. Beforeuse, thecollapsible sparewheel
has tobe inflated withth eaccom panying com‐
pr essor . Chec
kth etir epr essur eof thecollapsible spare
wheel onceins talled. Correct thepr essur eas
neces sary.
The maximum permissible speedwithacollapsi‐
ble spar ewheel installed is50 mph(8 0km/h).
Do notins tallsno wch ains onthecollapsible
spar ewheel.
Re place thecollapsible sparewheel afte rsix
ye arsat thelat est,re ga rdless ofwe ar.
% Ve
hicl eswith atir epr ess uremonit oring
sy stem: Ifacollap siblesparewheel isins tal‐
led thetir epr essur emonit oring system can‐
no tfunc tion reliabl y.Fo ra fe w min utes afte r
an emer gency sparewheel isins talled, the
sy stem mayst ill displa yth etir epr essur eof
th ere mo vedwheel. Onlyre star tth esy stem
ag ain when thecollapsible sparewheel has
been replaced withane wwheel.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page35 7)
R Tire pressur eta ble (/ page359 ) Wheels
andtires 38
7

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

ä
Suspens ion wa rning lam p(red)
.. ...........................................................4 69
ä Suspe nsionwarning lam p(yel‐
lo w) .....................................................4 69
0024 Theelectricpar king brak e(yel‐
lo w) indi catorlamp <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 467
0077 Tire pressur emonit oring sys‐
te m wa rning lam pflashes .................... 472
0077 Tire pressur emonit oring sys‐
te m wa rning lam plight sup .................4 73
L Warning lam pfo rdis tance
wa rning func tion .................................4 69
Wa rning/indicat orlam ps.......................4 60
Ov ervie w ....... ....... ............................ ...460
PA SSENGER AIRBAG ...................... .......4 7
Wa rranty .....................................................31
Wa sher fluid
see Windsh ield wa sher fluid
Wa shing byhand (care)...... ....................331
Wa terta nk
see Air-water duct We
ather information ...............................298
We bbr ow ser
Ov ervie w .......................................... ... 308
Wheel chang e
Lo we ring theve hicle ........................ ... 384
Mounting ane wwheel ..................... ... 383
Re mo ving awhee l..... ......................... .3 82
Re mo ving/ins talling hubcaps .............3 79
Whee lro tat ion .........................................3 78
Wheel s
Ca re <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 332
Ch ang inghubcap s<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 379
Chec king.............................................3 56
Che cking thetir epr essur e(man‐
uall y)................................................ ... 360
Chec kingthetir epr essur e(tir epr es‐
sur emonit oring system) ......................3 62
Def initio ns....... ................................... .372
DO T,Tire Identif ication Number (TIN)
..... .................................................. ......3 68
Flat tire ....... ......................................... 338
Ins talling .............................................. 383
Load index...........................................3 70
Load -bearing cap acity <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 370 Maximum
tireload .............................. 369
Maximum tirepr essur e....................... 369
MOExt ended tires ................................ 338
No ise ...................................................3 56
No teson installing ...............................3 75
Ov ervie wof tirelabel ing......................3 67
Re mo ving ............................................ 382
Re placing .....................................3 75,37 9
Re star tin gth etir epr essur emonit or‐
ing system ...........................................3 62
Ro tating ........... ....................................378
Sel ectio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 375
Sno wch ains ........................................ 357
Spe edrating ........... .............................370
St or ing .................................................3 78
Te mp eratur egr ade .............................. 367
Ti re and Loadi ngInfo rm atio nplacar d
.. ...........................................................3 63
Ti re charact eristic s.............................. 370
Ti re pressur e(no tes) ........................... 357
Ti re pressur emonit oring system
(funct ion)............................................. 360
Ti re pressur eta ble .............................. 359
Ti re Qua lityGradi ng .......... ................... 367
Ti re size designation ............................3 70
TIREFIT kit....... ....................................339 Inde
x50
7