2021 MERCEDES-BENZ GLS SUV battery

lights up when
theve hicle has /nished
lo we ring.
Yo ur selection is sa ved. The o.- road le vel set
re mains stored even aTer the ignition has been
switched o..
Oper Oper ation wit
ation wit h a tr
h a trailer or bicy
ailer or bicy cle r
cle rack
ack
If th e electrical connection has been cor rectly
es tablished tothe trailer or bicycle rack:
R Uptoappr ox. 20 km/h: o.- road le vels +1, +2
and +3 can be selected, rega rdless of the
drive prog ram.
R Uptoappr ox. 30 km/h: o.- road le vels +1 and
+2 can be selected, rega rdless of the drive
prog ram.
R From appr ox. 30 km/h: theve hicle is adjusted
to normal le vel,re ga rdless of the drive pro-
gr am.
Se
Se tting t
tting t he ent
he ent er
ering and e
ing and e xiting lev
xiting level (AIRMA
el (AIRMA TIC)
TIC)
R
R eq
eq uir
uir ements:
ements:
R The engine is running.
R The vehicle is moving at speeds below
30 km/h. Multimedia system:
4 © 5
Settings
5 Schnellzugriff (Quick access) #
Select Lower when entering On.
The vehicle is lo weredto low le vel -2 tofacili-
ta te entering and exiting.
% The availability of this function depends on
th eve hicle equipment.
% Further information on AIRMATIC
(/ page 267).
Low
Low er
ering and r
ing and r aising t
aising the r
he rear of t
ear of t he v
he vehicle
ehicle &
W
WARNING
ARNING Risk of ent rapment from vehi-
cle lo wering
When lo wering theve hicle, other people could
become trapped if their limbs are between the
ve hicle body and the tyres or underneath the
ve hicle. #
Make sure no one is underneath the
ve hicle or in the immediate vicinity of the
wheel ar ches when theve hicle is being
lo we red. R
R
eq
eq uir
uir ements:
ements:
R allvehicle doors are closed
R there is no trailer coupled
R there is no bicycle rack /tted
R the battery is su1ciently charge d (if neces-
sar y,start the engine)
Low
Low er
ering t
ing t he r
he rear of t
ear of t he v
he vehicle
ehicle 272
272
Driving and parking

#
Apply the electric parking brake. #
ShiT the transmission toposition j
(/ page 210). #
Pull switch 1inthe load compartment trim
brie0y.
Indicator lamp 20ashes until theve hicle has
been lo wered.
The vehicle is lo wered at there ar axle by
appr ox. 40 mm. When theve hicle has been
lo we red, indicator lamp 2remains lit.
Lo we ring is inter rupted in thefo llowing situations:
R ave hicle door is opened.
R switch 1is pulled again.
R theve hicle is being driven faster than 2 km/h.
% The vehicle is automatically set tothe le vel of
th e selected drive prog ram if you drive at
speeds greater than 2 km/h.
If indicator lamp 20ashes twice and there ar of
th eve hicle does not lo wer: #
Make sure that there qu irements are met.
% Lowe ring there ar of theve hicle allo ws the
ve hicle tobe loaded more easil y.Obser vethe no
tes on loading theve hicle when doing this
(/ page 135).
R
R aising t aising t he r
he rear of t
ear of t he v
he vehicle
ehicle #
Check if the battery is su1ciently charge d. If
necessar y,start the engine. #
Pull switch 1brie0y.
Indicator lamp 2goes out.
The vehicle will be raised tothe cur rently
selected le vel.
% The vehicle is automatically set tothe le vel of
th e selected drive prog ram if you drive at
speeds greater than 2 km/h.
If th eve hicle cann otbe raised: #
Ensure that the battery is su1ciently charge d;
if necessar y,start the engine.
The raising process continues. E-A
E-A
CTIVE BOD
CTIVE BOD Y C
Y CONTR
ONTR OL
OL F
F
unction of E-A
unction of E-A CTIVE BOD
CTIVE BODY C
Y CONTR
ONTR OL
OL
E- AC TIVE BODY CONTROL is an electrohydraulic
suspension system with variable damping for
impr oved driving comfort. The all-round le vel con- trol system ensures
the best possible suspension
and constant ground clearance, even with a laden
ve hicle. When driving at speed, theve hicle is lo w-
ered automatically toimpr ovedriving saf ety and
to reduce fuel consum ption. The suspension set-
ting is adjusted depending on thero ad sur face,
ve hicle load and the drive prog ram selected.
The ROAD SURF ACE SCAN function de tects areas
of une venness in thero ad before you drive over
th em bymeans of a multifunction camera. This
re duces chassis mo vements.
The damping is adjus ted individually toeach
wheel and depends on thefo llowing factors:
R Driving st yle, e.g. sporty
R Road condition, e.g. bumps
R Drive prog ram
E- AC TIVE BODY CONTROL is comprised of thefo l-
lowing functions and components:
R V
V ehicles wit ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
RO AD SURF ACE SCAN
R Cur veinclination function CURVE
R Recovery mode Driving and parking
273
273

R
Trailer Manoeuv ring Assist
R Active Lane Keeping Assist
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assist
R Drive Away Assist
R Cross Tra1c Ale rt
R Reversing camera
R 360° camera
R AIRMATIC
R E-AC TIVE BODY CONTROL
Coupling up a tr Coupling up a tr ailer ailer
* NO
NOTE
TEDamage tothe star ter battery due
to full dis charge Charging
the trailer battery using the po wer
supply of the trailer can damage the star ter
batter y. #
Do not use theve hicle's po wer supply to
ch arge the trailer batter y. #
Remo vethe co ver cap from the ball head and
store it in a safe place. #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. #
Open the soc ket cap. #
Inse rtthe plug with lug 1ingroo ve 3 on
th e soc ket. #
Turn bayonet coupling 2totheright as far as
it will go. #
Let the cap engage. #
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). #
Make sure that the cable is alw ays slack for
ease of mo vement during cornering.
Under thefo llowing conditions, a message may
appear on the inst rument display even if the
trailer has been connec ted cor rectl y:
R LEDs ha vebeen ins talled in the trailer lighting
system.
R The cur rent has fallen below the trailer lighting
system's minimum cur rent (50 mA).
% Accessories can be connected tothe perma-
nent po wer supply up to180 W and tothe
po we r supply that is switched on via the igni-
tion loc k.
U
U ncoupling a tr
ncoupling a tr ailer
ailer &
W
WARNI NG
ARNI NGRisk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. Driving and parking
303 303

tion about anti-theT pr
otection can be obtained at
a quali/ed specialist workshop. Home scr
Home scr
eenov
een overerview
view 1
Depending on the displa y,calls up the /rst
th re e applications or the home screen
2 Calls up the pro/le
3 Calls up the global sear ch 4
SOS NOT REA DY(only when the Mercedes-
Benz emer gency call system is not available)
5 Mercedes me connect active
6 Transmission of vehicle position active 7
Signal st rength of the mobile phone networ k,
network displa y,battery status of the mobile
phone connected, time
8 Calls up theNo ti/cations Cent re
9 Calls up an application using the symbol 316
316
MBUX multimedia system

T
T
elephone menu ov
elephone menu overerview
view 1
Blue tooth ®
device name of the cur rently con-
nected mobile phone/of the mobile phone
2 Blue tooth ®
device name of the cur rently con-
nected mobile phone/of the mobile phone
(two phone mode)
3 Battery status of the connected mobile phone
4 Signal strength of the mobile phone network
5 Options 6
Device manager
7 Messages
8 Numerical pad
9 Contact sear ch T
T elephon
elephon y oper
y operating modes ov
ating modes overerview
view
Depending on your equipment, thefo llowing tel-
ephony operating modes are available:
R A mobile phone is connected tothe multime-
dia system via Blue tooth ®
. MBUX multimedia system
339
339

th
e emer gency call and faster transfer of the
accident data.
Measu resfo rre scue, reco very or towing away
can then be initiated in quickl y.
R With a Mercedes-Benz emer gency call, the
accident data is only transfer redto the public
coordination centre with the appr oval of the
cus tomer.
In theev ent of an automatically triggered
emer gency call in which there is no voice con-
ta ct, the accident data is transmitted immedi-
ately tothe public emer gency call centre.
R Should the Mercedes-Benz emer gency call
centre not be available, the 112 emer gency
call is ca rried out automaticall y.Ov Ov
er
ervie
vie w of emerg
w of emerg ency call syst
ency call syst ems
ems Bo
th th e Mercedes-Benz emer gency call system
as well as the 112 emer gency call system (EU
eCall) can help toreduce the time between an
accident and the ar riva l of emer gency services at
th e site of the accident. They help locate an acci-
dent site in places that are di1cult toaccess. Bo
th emer gency call systems can initia tean emer-
ge ncy call automatically (/ page 351) or man-
ual ly ( / page 352).
Only make emer gency calls if you or others are in
need of rescue. Do not make an emer gency call in
th eev ent of a breakdown or a similar situation.
Messag
Messag es on t
es on the display
he display
The following message s appear inthe display of
bo th emer gency call systems:
R SOS NOT READY: theve hicle is not switched
on or the emer gency call system is malfunc-
tioning. This does not necessarily indicate
comple tefailure of the emer gency call system.
Eme rgency calls call still be transmitted.
The display only refers to theve hicle and does
not take account of theav ailability of mobile
phone networ ksand the Mercedes-Benz emer-
ge ncy call centre.
The functional readiness of the emer gency call
system on theve hicle can be seen when the
SOS NOT READY displaydisappears once the
ve hicle is switched on. R
G: The icon appears in the display during
an active emer gency call.
% Ifth ere is a malfunction in the emer gency call
system (e.g. a fault with the speaker, micro-
phone, airbag, SOS button), a cor responding
message appears on the inst rument displa y. T T
r
r igg
igg er
ering an aut
ing an aut omatic emerg
omatic emerg ency call
ency call R
R
eq
eq uir
uir ements:
ements:
R The vehicle is switched on.
R The star ter battery is su1ciently charge d.
Bo th th e Mercedes-Benz emer gency call system
as well as the 112 emer gency call system (EU
eCall) automatically initia tean emer gency call
aTer:
R Activation of there straint systems su chas air-
bags or seat belt tensioners aTer an accident
The eme rgency call has been made:
R Avo ice connection is established with the
emer gency call centre. MBUX multimedia system
351
351

Fo
r accident clari/cation purposes, thefo llowing
measures can be take n up toan hour aTer the
emer gency call has been initia ted:
R The cur rent vehicle position can be de ter-
mined.
R Avo ice connection totheve hicle occupants
can be es tablished.
R Emer gency call data can be called up.
% ForRu ssia: various functions, e.g. receiving
tra1c information, cannot be per form ed for
up totwo hours aTer sending an emer gency
call. Self diagnosis function of t
Self diagnosis function of t
he emerg
he emerg ency call sy
ency call sy s-
s-
t
t em
em Yo
ur car veri/es the operability of the emer gency
call system each time theve hicle is ON. In case of
system failure, you will be informed with text mes-
sage on the inst rument clus ter and with red indi-
cator SOS NOT READY on the displa y.
Please, ma kesure, that during 30 seconds aTer
switching vehicle ON there d indicator SOS NOT
READY in the upper right corner of display is switched OFF,
this means the emer gency call sys-
te m passed diagnostics successfull y. S
S
t
tar
ar ting/ending ERA
ting/ending ERA -GL
-GLON
ONASS t
ASS t es
est mode
t mode R
R
eq
eq uir
uir ements:
ements:
R The star ter battery is su1ciently charge d.
R The vehicle is switched on.
R The vehicle has been stationary for at least
one minute.
% The test mode is cu rrently available in thefo l-
lowing countries, forex ample:
R Russia
R Belarus
R Kazakhstan
R Armenia
R Kyrgyzs tan #
T
To st
o st ar
art t
t t he t
he t es
est mode:t mode: press and hold the
~ button on the multifunction steering
wheel for at least /ve seconds.
The test mode is star ted and automatically
ends aTer the language test has been pe r-
fo rm ed. #
T
To st
o st op manual t
op manual t es
est mode:t mode: switch o. theve hi-
cle.
The test mode is ended. Inf Inf
or
ormation on dat
mation on dat a pr
a processingocessing Pr
Processing of per
ocessing of per sonal dat
sonal data via t
a via the Mer
he Mercedes- cedes-
Benz emerg
Benz emerg ency call sy st
enc y call sy stem
em
All processing of pe rsonal data via the Mercedes-
Benz emer gency call system cor responds with the
speci/cations in the EU Regulation 2016/679 "on
th e pr otection of individuals with rega rd tothe
processing of personal data (GDPR)".
The data is solely used bythe Mercedes-Benz
emer gency call system forre scue and reco very in
th eev ent of an accident.
The owner of a vehicle, that is equipped with a
Mercedes-Benz emer gency call system in addition
to the 112 emer gency call system (EU eCall), has 354 354
MBUX multimedia system

R
Frequent operation in mountainous terrain or
on poor road sur faces
R When the engine is oTen leT idling for long
periods
R Operation in particular lydusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air /lter, air /lter, engine oil and oil /lter,
fo rex ample, changed more frequentl y.The tyres
must be checked more frequently if theve hicle is
operated under increased loads. Further informa-
tion can be obtained at a quali/ed specialist work-
shop. Batt Batt
er
ery disconnection per
y disconnection per iods
iodsThe AS
SYST PLUS service inter val display can cal-
culate the service due date only when the battery
is connected. #
Display and no tedown the service due date
on the inst rument display before disconnect-
ing the battery (/ page 364). Engine com
Engine com
par
partment
tment Opening and closing t
Opening and closing t
he bonnet
he bonnet &
W
WARNING
ARNING Risk of accident due todriving
with the bonnet unloc ked
The bonnet may open and blo ckyour vie w. #
Neverre lease the bonnet when driving. #
Before every trip, ensure that the engine
bonnet is loc ked. &
W
WARNING
ARNING Risk of accident and inju ry
when opening and closing the bonnet
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonnet's range of mo vement. #
Do not open or close the bonnet if there
is a person in the bonnet's range of
mo vement. &
W WARNING
ARNING Risk of burns when opening the
bonnet
If yo u open the bonnet in theev ent of an over-
heated engine or /re in the engine compart-
ment, thefo llowing situations may occur:
R You may come into contact with hot gases.
R You may come into contact with other
escaping hot operating 0uids. #
Before opening the bonnet, allow the
engine tocool down. #
Intheev ent of a /re in the engine com-
partment, keep the bonnet closed and
call the /re service. &
W
WARNING
ARNING Risk of injury due tomoving
parts
Components in the engine compartment may
continue torun or start unexpectedly even
when the drive system is switched o..
Obser vethefo llowing if you must open the
bonnet: Maintenance and care
365
365