MERCEDES-BENZ GLS SUV 2020 Owners Manual

shop. The new wheel must ha
vethe
cor rect dimensions. %
The emergency spa rewheel is fastened in
th e load compartment under the load com‐
partment floor.
% Not for Mercedes-Maybach vehicles.
Obser vethefo llowing no tes on fitting an emer‐
ge ncy spa rewheel:
R Check the tyre pressure of the emer gency
spa rewheel fitted. Co rrect the pressure as
necessar y.
R The maximum permissible speed with an
emer gency spa rewheel fitted is 80 km/h.
R Do not fit th e emer gency spa rewheel with
sn ow ch ains.
R Replace the emer gency spa rewheel af ter six
ye ars at the latest, rega rdless of wear.
% Ve
hicles with a tyre pressure monitoring
sy stem: if an emer gency spa rewheel is fit‐
te dth e tyre pressure monitoring sy stem can‐
not function reliabl y.Fo r a few minutes af ter
an emer gency spa rewheel is fitted, the sys‐ te
m may still display the tyre pressure of the
re mo ved wheel. Only restart the sy stem
again when the emer gency spa rewheel has
been replaced with a new wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 394)
R Tyre pressure table (/ page 395)
R Notes on fitting tyres (/ page 397) Inflating
the emer gency spare wheel *
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long #
Do not runth e tyre inflation compres‐
sor for longer than ten minu tes without
inter ruption. Re
quirements:
Comply with the manufacturer's saf ety no tes on
th est icke r of the emer gency spa rewheel and on
th e tyre inflation compressor. #
Remo vethest icke r with the label 80 km/h
from the tyre inflation compressor housing
and af fix it tothe instrument clus ter within
th e driver's field of vision. #
Remo vethe tyre inflation compressor from
th estow age space under the luggage com‐
partment floor (/ page376). #
Pull filler hose 1and plug 3out of the tyre
inflation compressor housing. #
Insert plug 7offiller hose 1inthe soc ket
on the tyre inflation compressor and then
turn it until plug 7engages. 408
Wheels and tyres

#
Unscr ew the cap from theva lve on the emer‐
ge ncy spa rewheel. #
Screw union nut 2offiller hose 1onto
va lve. #
Make sure on and off switch 4ofthe tyre
inflation compressor is set to0. #
Insert plug 3in a soc ket in your vehicle.
R Cigar ette lighter soc ket
R 12V soc ket: ( / page 148)
R Obse rveth e no tes on the cigar ette lighter in
th e Digital Owner's Manual
R Obser vethe no tes on soc kets: (/ page 148) #
Press thest art/ stop button once toswitch
on the po wer supp ly (/ page187). #
Press on and off switch 4onthe tyre infla‐
tion compressor toI.
The tyre inflation compressor is switched on.
The tyre is inflated. The tyre pressure
appears on manome ter5. #
Pump the tyre tothe specified tyre pressure. %
The specified tyre pressure is stated on the
label of the emer gency spa rewheel. #
When the specified tyre pressure has been
re ached, press on and off swit ch4 onthe
tyre inflation compressor to0.
The tyre inflation compressor is switched off. #
Press thest art/ stop button toswitch off the
po we r supp ly. #
Ifth e tyre pressure is higher than the speci‐
fi ed pressure, press pressure release valve
bu tton 6until the cor rect tyre pressure has
been reached. #
Unscr ew union nut 2offiller hose 1from
th eva lve. #
Screw theva lve cap of the emer gency spa re
wheel onto theva lve again. #
Stow filler hose 1and plug 3inthe lo wer
section of the tyre inflation compressor
housing. #
Stow th e tyre inflation compressor in the
ve hicle. Collapsible spare wheel
Note
s onthe collapsible spa rewheel &
WARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of
th e emer gency spa rewheel or spare wheel
and the wheel tobe replaced may dif fer.
Mounting an emer gency spa rewheel/spare
wheel may se verely impair the driving char‐
acteristics.
To preve nt hazardous situations: #
Adapt your driving style according lyand
drive carefull y. #
Neverfit more than one emer gency
spa rewheel or spare wheel that dif fers
in size. #
Only use an emer gency spa rewheel or
spare wheel of a dif fere nt size brie fly. #
Do not switch off ESP ®
. #
Have the emer gency spa rewheel or
spare wheel of a dif fere nt size replaced Wheels and tyres
409

at
the nearest qualified specialist work‐
shop. The new wheel must ha vethe
cor rect dimensions. The collapsible spa
rewheel is an emer gency
spa rewheel which is only suitable for use for a
limi ted period of time and in a restricted manner
in theeve nt of a flat tyre (e.g. until the nearest
wo rkshop).
The tyre side walls are folded when in transpo rt
mode. Before use, the collapsible spare wheel
has tobe inflated with the accompanying com‐
pressor.
Check the tyre pressure of the collapsible spare
wheel once fitted. Co rrect the pressure as nec‐
essar y.
The maximum permissible speed with a collapsi‐
ble spare wheel fitted is 80 km/h.
Do not fit snow chains with the collapsible spare
wheel.
Re place the collapsible spare wheel af ter six
ye ars at the latest, rega rdless of wear.
% Ve
hicles with a tyre pressure monitoring
sy stem: if a collapsible spare wheel is fitted th
e tyre pressure monitoring sy stem cann ot
function reliably. For a few minutes af ter an
emergency spare wheel is fitted, the sy stem
may still display the tyre pressure of the
re mo ved wheel. Only restart the sy stem
again when the collapsible spare wheel has
been replaced with a new wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 394)
R Tyre pressure table (/ page 395)
Note s onvehicles with a Burmes ter sound
sy stem &
WARNING Risk of inju ryor death due to
an unsecured collapsible spare wheel
If th e collapsible spare wheel is not secured
cor rectl y,it can slip, tip over or be thrown
around.
Ve hicle occupants could be hit byan unse‐
cured collapsible spare wheel and be seri‐
ously injured as a result, particularly when accelerating, braking, abruptly
changing
direction or in theeve nt of an accident. #
Alw aysst ore the collapsible spare
wheel in the emer gency spa rewheel
bag and attach it tothe brac ket in the
load compartment. #
Alw ays ensure that the lashing stra ps
on the emer gency spa rewheel bag are
safely secured on there ar tie-down
ey es on the load compartment floor. Depending on
theve hicle's equipment, the col‐
lapsible spare wheel is located in an emer gency
spa rewheel bag on a brac ket in the load com‐
partment. The collapsible spare wheel in the
emer gency spa rewheel bag and the brac ket are
lashed wi thstra ps and secured using there ar
tie-down eyes on the load compartment floor. Re
moving the collapsible spare wheel Ve
hicles without a Burmes ter sound sy stem
The collapsible spare wheel is located under the
load compartment floor. 41 0
Wheels and tyres

#
Obser vethe information on mounting tyres
(/ page 397). #
Open theta ilgate. #
Open the load compartment floor. #
Remo vethe collapsible spare wheel.
Ve hicles with a Burmes ter sound sy stem
The collapsible spare wheel is secured in the col‐
lapsible spare wheel bag in the load compart‐
ment. #
Obser vethe information on mounting tyres
(/ page 397). #
Open the load compartment. #
Loosen the lashing stra ps. #
Unhook there taining spring hooks of the
lashing stra ps from the brac kets. #
Remo vethe collapsible spare wheel bag
to ge ther with the collapsible spare wheel. #
Open the collapsible spare wheel bag and
re mo vethe collapsible spare wheel. Mercedes‑Maybach
vehicles
Wi thout refrigerator box: the collapsible spare
wheel is located in the collapsible spare wheel
bag on the load compartment floor. #
Obser vethe information on mounting tyres
(/ page 397). #
Open the load compartment. #
Loosen the lashing stra ps. #
Unhook there taining spring hooks of the
lashing stra ps from the brac kets. #
Remo vethe collapsible spare wheel bag
to ge ther with the collapsible spare wheel. #
Open the collapsible spare wheel bag and
re mo vethe collapsible spare wheel.
Wi th refrigerator box: the collapsible spare
wheel is located in the collapsible spare wheel
bag inside the open load compartment floor. #
Obser vethe information on mounting tyres
(/ page 397). #
Open the load compartment. #
Loosen the lashing stra ps. #
Unhook there taining spring hooks of the
lashing stra ps from the brac kets. #
Remo vethe collapsible spare wheel bag
to ge ther with the collapsible spare wheel. #
Open the collapsible spare wheel bag and
re mo vethe collapsible spare wheel. Inflating
the collapsible spa rewheel Re
quirements:
R Mount the collapsible spare wheel as descri‐
bed (/ page 406).
R Remo vethe tyre inflation compressor from
th estow agewell under the boot floor
(/ page 376).
* NO
TEDama getothe collapsible spare
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the collapsible spare wheel can
damage its rim. Wheels and tyres
411

#
Inflate the collapsible spare wheel using
th e tyre inflation compressor before
lo we ring theve hicle. *
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long #
Do not runth e tyre inflation compres‐
sor for longer than ten minu tes without
inter ruption. #
Pull connec tor4 and the hose out of the
housing. #
Unscr ew the cap from theva lve on the col‐
lapsible spare wheel. #
Screw union nut 1ofthe hose onto the
va lve.
Make sure on and off switch 3ofthe tyre
inflation compressor is set to0. #
Insert plug 4into the cigar ette lighter
soc ket or into a 12V soc ket (/ page 148) in
yo ur vehicle. #
Switch on the po wer supp ly (/ page 187). #
Press On/Off switch 3onthe tyre inflation
compressor toI.
The tyre inflation compressor is switched on.
The tyre is inflated. The tyre pressure is
shown on manome ter2. #
Pump the tyre tothe specified tyre pressure.
% The specified tyre pressure is printed on the
ye llow label of the collapsible spare wheel. #
When the specified tyre pressure has been
re ached, press on and off swit ch3 onthe
tyre inflation compressor to0. #
Ifth e tyre pressure is higher than the speci‐
fi ed pressure, press pressure release valve bu
tton 5until the cor rect tyre pressure has
been reached. 412
Wheels and tyres

Note
s ontech nical data
* NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The
tech nical da tawa s de term ined in accord‐
ance with EU Directives. The data stated on ly
applies tovehicles with standard equipment. Yo u
can obtain fur ther information from a Mercedes-
Benz Service Centre.
Only for ce rtain countries: you can find vehi‐
cle-specific vehicle data in the COC documents
(CERTIFIC ATE OF CONFORMITY). These pape rs
are included with theve hicle. On-board electronics
Note
s on tampering with the engine elec‐
tronics *
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in valida‐
te d. #
Alw ays ha vewo rkon the engine elec‐
tronics and related components car ried
out at a qualified specialist workshop. Tw
o-w ayradios Note
s onfitting two-w ayradios &
WARNING Risk of accident due to
improper workon two-w ayradios
If two-w ayradios are manipulated or retrofit‐
te d incor rectl y,the electromagnetic radiation
from the two-w ayradios can inter fere with th
eve hicle electronics and jeopardise the
operating saf ety of theve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop. &
WARNING Risk of accident from incor‐
re ct ope ration of two-w ayradios
If yo u use two- wayra dios in theve hicle
improperly, their electromagnetic radiation
can disrupt theve hicle's electronics. This is
true in thefo llowing situations, in particular:
R The two-w ayradio is not connec tedto an
ex terior aerial.
R The exterior aerial is fitted inco rrectly or
is not a lo w-reflection aerial.
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-reflection exterior aerial
fi tted at a qualified specialist workshop. Te
ch nical da ta413

#
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior aerial. *
NO
TEInva lidation of the operating per‐
mit due tofailure tocomply wi th the
instructions for ins tallation and use The operating permit may be in
validated if
th e instructions for ins tallation and use of
two-w ayradios are not obser ved. #
Only use appr oved frequency bands. #
Obser vethe maximum permissible out‐
put po wer in these frequency bands. #
Only use appr oved aerial positions. 1
Front roof area
2 Rear roof area
3 Rear wings
On vehicles with a panoramic sliding sunroof, fit‐
ting an ae rial to the front or rear roof area is not
permitted. On
there ar wings, it is recommended that you
fi t th e aerial on the side of theve hicle closest to
th e cent reofthero ad.
Use Tech nical Specification ISO/TS 21609 (Road
Ve hicles – "EMCs for ins tallation of af term arket
ra dio frequency transmitting equipment") when
re trofitting two-w ayradios. Comply with the
legal requirements for de tach able parts.
If yo ur vehicle has fittings for two-w ayradio
equipment, use the po wer supp lyand aerial con‐
nec tors prov ided in the pre-ins tallation. Obser ve
th e manufacturer's supplements when fitting.
Tw o-w ayradio transmission output
The maximum transmission output (PEAK) at the
base of the aerial must not exceed theva lues in
th efo llowing table. 414
Tech nical da ta

Fr
equency band and maximum transmission
output Fr
equency band Maximum transmis‐
sion output
Sho rtwa ve
3 - 54 MHz 10
0 W
4 m frequency band
74 - 88 MHz 30 W
2 m frequency band
14 4 - 174 MHz 50 W
Te rrestrial Trunked
Ra dio (TETRA)
380 - 460 MHz 10 W
70 cm frequency
band
420 - 450 MHz 35 W
Tw o-w ayradio
(2G/3G/4G) 10 W The
following can be used in theve hicle without
re strictions:
R two-w ayradios with a maximum transmission
output of up to100 mW
R RF transmitters with transmitter frequencies
in the 380 - 410 MHz frequency band and a
maximum transmission output of up to2 W
(TETRA)
R mobile phones (2G/3G/4G)
There are no restrictions when positioning the
aerial on the outside of theve hicle forth efo llow‐
ing frequency bands:
R Terrestrial Trunked Radio (TETRA)
R 70 cm frequency band
R 2G/3G/4G Ra
dio ope rating permits forve hicle comp o‐
nents
Manufacturer information about wireless vehicle
components can be found using theke y phrase
"Radio operating permits" in the Digital Owner's Manual in
theve hicle, on the internet and in the
app. Ve
hicle identification plate, VIN and engine
number overview
Ve hicle identification plate Te
ch nical da ta415

Ve
hicle identification plate (e xample:Kuwa it)
1 Vehicle manufacturer
2 Place of manufacture
3 Manufacturing date
4 Paint code
5 VIN Ve
hicle identification plate (e xample: all
ot her countries)
1 Vehicle manufacturer
2 EUgeneral operating pe rmit number (only
fo r cer tain countries)
3 VIN (vehicle identification number)
4 Maximum permissible gross vehicle weight
(kg) 5
Maximum permissible gross weight of vehi‐
cle combination (kg) (for cer tain countries
onl y,optional)
6 Maximum permissible front axle load (kg)
7 Maximum permissible rear axle load (kg)
8 Paint code
% The data shown in the illustration is example
data. 416
Tech nical da ta

VIN in front of the front seat
1
VIN (vehicle identification number) VIN at the lo
wer edge of the windscreen 1
VIN (vehicle identi fication number)
The VIN as a label at the lo wer edge of the wind‐
screen is only available in some countries.
Engine number
The engine number is stamped into the crank‐
case.
% Further information can be obtained at a
qu alified specialist workshop. Operating
fluids Note
s on operating fluids *
NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
WARNING Risk of inju ryfrom operating
fl uids harmful to your health
Operating fluids may be poisonous and harm‐
ful to yo ur health. #
Obser vethete xt on the original con‐
ta iners when using, storing or disposing
of operating fluids. #
Alw aysst ore operating fluids sealed in
th eir original conta iners. #
Alw ayske ep children away from operat‐
ing fluids. Te
ch nical da ta417