2021 MERCEDES-BENZ GLS SUV tow

%
The turn signal indicator is switched on auto-
matically when the parking procedure begins.
Yo u are responsible for selecting the turn signal
indicator in accordance with the tra1c condi-
tions. If necessar y,select the turn signal indicator
accordingl y. &
W
WARNI NG
ARNI NGRisk of accident due tovehicle
swinging out while parking or pulling out
of a parking space
While parking or exiting a parking space, the
ve hicle swings out and can drive onto areas of
th e oncoming lane.
This could cause youto collide with objects or
ot her road users. #
Pay attention toobjects and other road
users. #
Where necessar y,stop theve hicle or
cancel the parking procedure with Active
Pa rking Assist. #
If,forex ample, thePlease engage reverse
gear message appears in the media displa y: select
the cor responding transmission posi-
tion.
The vehicle drives into the selected parking
space.
% During the parking procedure with Active
Pa rking Assist, the lane markings are dis-
pla yed in green in the camera image.
On completion of the parking procedure, the
Ø Parking Assist finished, take control of
vehicle display message appears. Further
manoeuvring may still be necessar y. #
ATer completion of the parking procedure,
safeguard theve hicle against rolling away.
When requ ired bylegal requ irements or local
conditions: turn the wheels towa rdsth eke rb.
% You can stop theve hicle and change the
transmission position during the parking pro-
cedure. The system then calculates a new
ve hicle path. If no new vehicle path is availa-
ble, the system can change the transmission
position again or cancel the parking proce-
dure. Exiting a par
Exiting a par king space wit king space wit h A
h Activ
ctiv e P
e Par
arking Assist
king Assist
R
R eq
eq uir
uir ements:
ements:
R The vehicle has been par ked with Active Park-
ing Assist.
Please no tethat you are responsible forth eve hi-
cle and sur roundings during the entire parking
procedure. #
Start theve hicle. 294
294
Driving and parking

straigh
tening manoeuvre. When ca rrying out a
straigh tening manoeuvre, the system calculates
th e articulation angle automatically and straight-
ens theve hicle/trailer combination tothe trailer's
cur rent direction.
Tr ailer Manoeuv ring Assist must be taught-in
before it can adjust the articulation angle
(/ page 298).
Obser vethe no tes on towing a trailer
(/ page 299).
Syst Syst em limits em limits
Obser vethe system limits of thefo llowing func-
tions:
R Active Parking Assist (/ page 291)
R 360° camera (/ page 283)
R Reversing camera (/ page 281)
The system may be impaired or may not function
in thefo llowing situations:
R The gradient is greater than appr oximately
15%. Using
Tr
Using Trailer Manoeuvr ailer Manoeuvr ing Assist
ing Assist
R
R eq
eq uir
uir ements:
ements:
R The vehicle has been star ted and is stationar y.
R A trailer has been de tected.
R The gradient is less than appr oximately 15%.
R The electric parking brake is not applied.
T
T eac
eac hing in Tr
hing in Trailer Manoeuvr
ailer Manoeuvr ing Assist
ing Assist #
Drive forw ards a short dis tance with the car/
trailer combination.
The comple tedte ach-in process is shown in
th e media displa y.
% The maximum articulation angle depends on
the length of the trailer. This is calculated by
th e system bydriving theve hicle forw ards,
including cornering. Before the length of the
trailer has been calcula ted, the maximum
articulation angle is appr oximately 23°. The
longer the trailer is, the higher the maximum
articulation angle (max. appr oximately 60°). Using
Tr
Using Trailer Manoeuvr ailer Manoeuvr ing Assist
ing Assist #
Engage reve rsege ar k. #
Press but ton1.
The camera ima geis shown in the media dis-
pla y. #
Toadjust the articulation angle: select ¸.
Swipe leT or right on the media display or
to uchpad tochange the articulation angle. 298
298
Driving and parking

or
#
Toactivate the straightening manoeuvre:
select º.
The system calculates the articulation angle in
such a wayth at the direction of the trailer at
th e time of activation is maintained. There is a
short countersteering mo vement of the trailer
while theve hicle is reve rsed, which then
guides it back tothe desired line. In this wa y,
th eve hicle is aligned st raight with the trailer
and, at the same time, the direction of the
trailer is maintained. #
Accelerate and brake as requ ired.
% Pay attention toyour sur roundings and be
re ady tobrake at all times. T
T
r
railer hitch
ailer hitch N
No
ot
tes on tr
es on tr ailer oper
ailer oper ation
ation *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Obser
vethefo llowing no tes on theto ngue weight:
R Do not use a tongue weight that exceeds or
fa lls below the permissible tongue weight
R Use a tongue weight as close as possible to
th e maximum tongue weight
Do not exceed thefo llowing values:
R Perm issible towing capacity
R Perm issible rear axle load of theto wing vehi-
cle
R Perm issible gross weight of theto wing vehicle
R Perm issible gross weight of the trailer
R Maximum permissible speed of the trailer
Ensure thefo llowing before starting a journe y:
R The tyre pressure on there ar axle of theto w-
ing vehicle is set for a maximum load
R The lighting of the connected trailer is opera-
tional
In theev ent of increased rear axle load, the car/
trailer combination must not exceed a maximum
speed of 100 km/h forre asons conce rning the
operating permit. This also applies in countries in which
the permissible maximum speed for car/
trailer combinations is abo ve100 km/h.
V
V ehicles wit
ehicles wit h AIRMA
h AIRMATIC or E-A
TIC or E-A CTIVE BOD
CTIVE BOD Y C
Y CON-
ON-
TR
TR OL:
OL: ifth e soc ket of the trailer hitch is occupied,
e.g. bya trailer or rear bicycle rack ,th eve hicle is
set tothe normal le velre ga rdless of the drive pro-
gr am at speeds greater than 30 km/h.
% When you are reve rsing with a trailer, remem-
ber touse theTrailer Manoeuvering Assist
function (/ page 297). Ext
Ext
ending and re
ending and retr
tracting t
acting t he ball nec
he ball nec k full
k fully electr
y electr i-
i-
cal ly
cally &
W
WARNING
ARNING Risk of accident due tothe ball
neck not being engaged
If th e ball neck is not engaged, the trailer may
come loose. #
Make sure that the ball neck securely
engages and loc ksinto place. Driving and parking
299
299

Obser
vethefo llowing no tes:
R mount heavy bicycles as close totheve hicle
as possible
R always distribute the load on the bicycle rack
as evenly as possible across theve hicle's lon-
gitudinal axis
Mercedes-Benz recommends removing all de tach-
able parts from bicycles (e.g. bask ets, ch ild seats,
re ch arge able batteries) before loading them onto
th e bicycle rack . This will impr oveth e aerody-
namic resis tance and centre of grav ity of the bicy-
cle rack.
Alw ays secure the bicycles topreve ntthem from
moving around and check them at regular inter-
va ls to ensure that they are secure.
Do not use tarp aulins or other co vers. The driving
ch aracteristics and rear view may be impaired. In
addition, aerodynamic resis tance and the load on
th e trailer hitch will increase. Load distribution on
the bicycle rack
1 Vertical distance between centre of grav ity
and ball head
2 Horizontal distance between centre of grav ity
and ball head
3 The centre of grav ity is on theve hicle's cent re
axis
Obser vethefo llowing information when loading
th e bicycle rack: Loading t Loading t
he bicy he bicycle r
cle rack
ack 3 bicy
3 bicy
cles
cles 4 bicy
4 bicycles
cles
To talwe ight of
bicycle rack and
load Up
to75 kg Up to100 kg
Max. distance
1 420 mm 420 mm
Max. distance
2 300 mm 400 mm When transporting
four bicycles or a tota lwe ight
between 75 kg and 100 kg, alw ays use bicycle
ra ck s with additional support on the trailer hitch
guide pin. V V
ehicle to
ehicle towing ins
wing ins tr
tructions
uctions
The vehicle is not suitable forth e use of tow bar
systems that are used for 0at towing or dinghy
to wing, forex ample. Attach ing and using tow bar
systems can result in damage totheve hicle.
When you are towing a vehicle with tow bar sys-
te ms, safe driving characteristics cann otbe guar- 306
306
Driving and parking

anteed
forth eto wing vehicle or theto we dve hicle.
The vehicle-trailer combination may swer vefrom
side toside.
Obser vethefo llowing information:
R Perm itted towing me thods (/ page 393)
R The no tes on towing theve hicle with bo th
axles on thegr ound (/ page 394) Driving and parking
307
307

The MBUX Int
The MBUX Int
er
erior Assist
ior Assist ant suppor
ant suppor ts t
ts the f
he f ollo
ollowing int
wing int er
eractions:
actions: Int
Int
er
eraction ar
action ar ea
ea Int
Inter
eraction
action Descr
Descrip
iption
tion
In front of the media display or
abo vetheto uchpad Pr
ox imity tothe control element The Interior Assistant recognises the approach of the hand towa rds a cont rol
element.
Depending on the active application, the display will be adjusted in the media
displa y.Some functions di.e rentiate between driver and front passenger.
No speci/c hand position is requ ired.
Ab ove the centre console De/ned pose Afavo urite is called up with a de/ned pose.
Below the inside rearview mir rorB rief up and down mo vements With brief vertical up and down mo vements below the inside rearview mir ror
th ere ading light forth e driver or the front passenger is switched on and o..
Ab ove the front passenger seat Stretching out a hand abo vethe front
passenger seat By str
etch ing out a hand abo vethe front passenger seat the sear chlight is
switched on. If you withdr awa hand from this area, the sear chlight is
switched o. again. Switc Switc
hing t
hing t he r
he reading light and searc
eading light and searc h light and
h light and
on or
on or o.
o. R
R
eq
eq uir
uir ements:
ements:
R F
For t
or t he r
he r eading light
eading light: :
- The function is available when it is dar k.-
The hand mo vement take s place in the
interaction area below the inside rearview
mir ror.
R F
For t
or t he searc
he searc h light
h light::
- The function is available when it is dar k.-
The hand mo vement take s place in the
interaction area abo vethe front passenger
seat.
- The seat belt on the front passenger seat
must no not
tbe inser ted in the seat belt
buckle. MBUX multimedia system
321
321

The
following entries can be made, forex ample:
R Town, st reet, house number
R Street,to wn
R Postcode
R POI name or POI ca tegor y,e.g. Parking
R Contact name #
Select a sear chresult in list 3. #
Calculate thero ute (/ page 332).
% You can /nd fur ther information about desti-
nation entr y,e.g. 3 wordaddresses, in the
Digital Owner's Manual.
Changing country
Changing country #
Select the country indicator in 1.#
Enter the country indicator. #
Select the country in 3.
Using online sear ch
Using online sear ch
% Requirements: the media display sho wsan
Internet connection in the status line with the
Q symbol. Destination ent
ryuses online map services. If the
on-board sear ch/nds no sui table destinations or
if yo uch ange countries, the online sear chisavail-
able.
Fo rth e destination you can enter an address, a
POI or a thre e-word address. #
Enter the destination in input line 2.
The sear chresults are displa yed. #
Select the destination in the list.
The de tailed view forth ero ute is displa yed.
or #
Select country indicator 1. #
Select the pr ovider forth e online service from
th e countries list. #
Enter the destination in input line 2. #
Select the destination in the list. Calculating a r Calculating a r
out
oute and using se
e and using se ttings f
ttings for r
or route
oute
guidance
guidance R
R
eq
eq uir
uir ements:
ements:
R The destination has been entered.
R The destination address is shown. Multimedia system:
4 © 5
Navigation 1
¥ Noroute yet.
¦ Aro ute has been mapped. #
Select ¥.
The route tothe destination is calculated.
Ro ute guidance begins.
or #
Select ¦. #
Select Set as intermediate dest..
The destination address is set as the next
intermediate destination. 332
332
MBUX multimedia system

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