2020 MERCEDES-BENZ GLS run flat

#
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 (/page54 2).
R Remo vethetir einf lation compressor from
th estow agespac eunde rth etrunk floor
(/ page495).
* 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. #
Pull connector4 and thehose outofthe
housing. #
Unscr ew thecap from theva lve on thecol‐
lapsible sparewheel. #
Screw unio nnut 1ofthehose ontoth e
va lve.
Mak esur eon and offswitc h3 ofthetir e
inf lation compressor issetto 0. #
Inser tplu g4 intoth ecig arette light er
soc ketor intoa12 Vsoc ket(/ page 146) in
yo ur vehicle. #
Switc hon thepo we rsupp ly(/ pag e18 1). #
Press onand offswi tch3 onthetir einf la‐
tion compressor toI.
The tireinf lation compressor isswitc hedon.
The tireis inf lated. The tirepr essur eis
sho wnonmanome ter2. #
Pum pth etir eto thespecif iedtirepr essur e.
The specif iedtirepr essur eis print ed on the
ye llo wlabel ofthecollapsible sparewheel. #
When thespecif iedtirepr essur ehas been
re ac hed, press onand offswit ch3 onthe
tir einf latio ncom pres sor to0. #
Ifth etir epr essur eis higher than thespeci‐
fi ed pressur e,press pressur ere lease valve 54
8
Wheels andtires

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
The tirepr essur eloss warning system has detected asig nifica ntlos sof press ure. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
Ti re pressur esthat areto olow pose thefo llo wing hazar ds:
R The tires ma ybur st,especiall yas theload andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or unevenly, whic hma ygr eatl yim pair tiretract ion.
R The drivin gch aract eristic s,as wellas steer ing and braking, maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ure. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur e(/ page51 5) andth etir es. #
When thetir epr essur eis cor rect, restar tth etir epr essur eloss warning system (/ page520).
Check TirePressure Then
Restart RunFlatIndic ator *C
anada only:
The tirepr essur eloss warning system gener ated adi spl aymessa geand hasnotbeen restar tedsinc e. #
When thetir epr essur eis cor rect, restar tth etir epr essur eloss warning system (/ page520).
Run FlatIndic atorInoper a-
tive *C
anada only:
The tirepr essur eloss warning system ismalfunct ioning. 61
8
Display messa gesand warning/ indic ator lam ps

ESP
®
(Electr onicStabil ityProg ram) ...... 220
Ac tivati ng/d eactiv ating ........... ........... .224
Fu nctio n/no tes ................................... 220
Ext endable running boards......................7 8
Ext enda blestep
see Running boards
Ex terior light ing
see Light s
Ext erior light ing(Car e)...........................4 90
Ext erior mir rors <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 166, 168
Anti-g lare mode (automatic) ................1 68
Au tomatic mirrorfo lding function ........ 169
Fo lding in/out .....................................1 66
Oper ating thememor yfunc tion ........... 122
Pa rking posit ion...................................1 68
Se tting ................................................. 166
Ext ernal device
Loc king(c hild safetyloc k) ...................3 75 F
Fa tig ue detection
see ATTENTION ASSIST Fa
vo rite s
Ad ding .................................................3 56
Ad ding ades tination ...........................3 89
Ca lling up ....... ................................... ..356
Dele ting .......................................... ..... 357
Home address ................................. ....3 89
Mo ving ................................................ 357
Ov ervie w ....... ................................... ...356
Re nam ing<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>357
Wo rkaddr ess .................................. .... 389
Flacon Inser ting/r emo ving.............................. 176
Flat tire .....................................................4 94
Chan gingawheel .......................... ...... 538
MOE xten ded tires ................................ 494
No tes ................................................... 494
TIREFIT kit...........................................4 95
Flat towing
see Tow- bar system
Floor mats................................................ 153
Fo ilco vering
Ra dar and ultrasonic sensors.............. 218
Fo lding table ............................................ 129 Fr
ag rance
see Perfume atomiz er
Fr ee driving mode
St artin g...............................................2 68
Fr ee sof tware ............................................ 34
Fr eq uencies
Tw o-w ayradio ...................................... 551
Fr eq uency band
Dialin g(on -boardcom puter) ................ 311
Fr ont airbag (driver ,fr ont passeng er).....4 2
Fr ont passeng erseat .............................. 103
Ad jus ting from thedr iver's seat ..........1 03
Ad jus ting from there ar passe nger
com partment .......................................1 04
Fr ont passeng erseat
see Seat
Fu el ...........................................................5 56
Ad ditiv es.............................................5 56
E1 0 ....... ............................................... 555
Fu elreser ve <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 556
Ga sol ine <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 555
Qua lity (gas oline )<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 555
Re fuel ing ............................................. 206 652
Index