trailer MERCEDES-BENZ GLS SUV 2019 Owner's Manual

&
WARNING Risk of entrapment from vehi‐
cle lo wering
When lo wering theve hicle, other people
could become trapped if their limbs are
between theve hicle body and the tyres or
underneath theve hicle. #
Make sure no one is underneath the
ve hicle or in the immediate vicinity of
th e wheel ar ches when theve hicle is
being lo wered. &
WARNING Risk of entrapment from vehi‐
cle lo wering
Ve hicles with AIRMATIC or le vel control:
when you unload luggage or lea vetheve hi‐
cle, theve hicle firs trises slightly and then
re turns tothe set le vel shortly af terw ards.
Yo u or an yone else in the vicinity of the
wheel ar ches or the underbody could thus
become trapped.
The vehicle can also be lo wered af ter being
loc ked. #
When leaving theve hicle, make sure
th at nobody is in the vicinity of the
wheel ar ches or the underbody. Re
quirements:
R The vehicle has been star ted.
R Vehicles without Off-road pac kage: the
ve hicle is not driving at speeds greater than
65 km/h or is operating with a trailer or bicy‐
cle rack with a cor rectly es tablished elect ri‐
cal connection 30 km/h.
R Vehicles with Off-road pac kage:
- Off-road le vel +1: theve hicle is not driv‐
ing at speeds greater than 100 km/h or
is operating with a trailer or bicycle rack
with a cor rectly es tablished elect rical
connection 30 km/h.
- Off-road le vel +2: theve hicle is not driv‐
ing at speeds greater than 65 km/h or is
operating with a trailer or bicycle rack
with a cor rectly es tablished elect rical
connection 30 km/h.
- Off-road le vel +3: theve hicle is not mov‐
ing fast erthan 20 km/h. Ra
ising theve hicle (vehicles without Off-
ro ad pac kage) #
Push rocker switch 1forw ards.
Indicator lamp 2flashes while theve hicle is
being raised and lights up continuously when
it has finished rising. 276
Driving and pa rking

Yo
ur selection is sa ved. The off-road le vel set
re mains stored even af terth e ignition has been
switched off.
Operation with a trailer or bicycle rack:ifyou
are driving at speeds greaterth an 30 km/h, the
ve hicle rises tothe normal le vel in the drive pro‐
grams Sport or Sport + if the electrical connec‐
tion has been cor rectly es tablished.
The vehicle is lo wered again in thefo llowing sit‐
uations:
R When driving fasterthan 80 km/h.
R When driving brief lybetween 65 km/ hand
80 km/h.
R After selecting a dif fere nt drive program
using theDY NA MIC SELECT switch.
The vehicle is adjus tedto the height of the
active drive program.
Operation with a trailer or bicycle rack:ifyou
are driving at speeds greaterth an 30 km/h, the
ve hicle lo wersto the normal le vel if the electrical
connection has been cor rectly es tablished. Lo
weri ngtheve hicle (vehicles without Off-
ro ad pac kage) #
Pull rock er switch 1.
The vehicle is adjus tedto the height of the
active drive program.
Operation with a trailer or bicycle rack:the
ve hicle lo wersto the normal le vel if the electrical
connection has been cor rectly es tablished. Ra
ising theve hicle (vehicles with Off-road
pac kage) #
Push rocker switch 1forw ards.
R Off- road le vel +1: one indicator lamp 2
lights up continuously when theve hicle
has finished rising.
R Off-road le vel +2: two indicator lamps 2
light up continuously when theve hicle
has finished rising. Driving and parking
277

R
Off-road le vel +3: thre e indicator lamps
2 light up continuously when theve hicle
has finished rising.
Yo ur selection is sa ved. The off-road le vel set
re mains stored even af terth e ignition has been
switched off.
The vehicle is lo wered again in thefo llowing sit‐
uations:
R Off- road le vel +3: when driving fasterthan
20 km/h.
The vehicle is lo weredto off-road le vel +2.
R Off- road le vel +2:
- When driving fasterthan 80 km/h.
- When driving brief ly between 65 km/h
and 80 km/h.
The vehicle is lo weredto off-road le vel +1.
Operation with a trailer or bicycle rack:if
yo u are driving at speeds greaterth an
30 km/h, theve hicle lo wersto the normal
le ve l if the electrical connection has been
cor rectly es tablished.
R Off-road le vel +1: -
When driving fasterthan 115 km/h.
- When driving brief lybetween 100 km/h
and 115 km/h.
- Operation with a trailer or bicycle
rack: you are driving at speeds greater
th an 30 km/h.
The vehicle is lo weredto the normal le vel.
R After selecting a dif fere nt drive program
using theDY NA MIC SELECT switch.
The vehicle is adjus tedto the height of the
active drive program.
Operation with a trailer or bicycle rack:
th eve hicle lo wersto the normal le vel if the
electrical connection has been cor rectly
es tablished.
Lo weri ngtheve hicle (vehicles with Off-road
pac kage) #
Pull rock er switch 1.
R Off-road le vel +3: theve hicle is lo wered
to off-road le vel +2. Two indicator lamps
2 light up continuously when theve hicle
has finished lo wering. R
Off-road le vel +2: theve hicle is lo wered
to off-road le vel +1. One indicator lamp
2 lights up continuously when theve hi‐
cle has finished lo wering.
R Off-road le vel +1: theve hicle is lo wered
to the normal le vel. No indicator lamp 2
lights up when theve hicle has finished
lo we ring.
Yo ur selection is sa ved. The off-road le vel set
re mains stored even af terth e ignition has been
switched off.
Setting Off-road Assist
Requ irements:
R theve hicle is stationary
R theve hicle is set tooff-road le vel 1 or 2
R the Off-road or Off-road Plus (only vehicles
with Off-road pac kage ) drive program has
been selected
R the ignition is switched on
R all doors and the bonn etare closed
R the transmission is not engaged in position
j 278
Driving and pa rking

R
there is no trailer coupled
R theve hicle is outdoors
R the de tected la tera l inclination of theve hicle
must not exceed appr ox.15 °
R the sy stem is within its operating temp era‐
ture
R the on-board voltage is suf ficiently high
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Offroad Assist
Re covery mode
Re covery mode assi ststh e driver when pulling
aw ay on rough terrain, such as sand or sn ow.#
Select Free driving mode. #
Select Start.
Re covery mode is activated. #
Select Stoptostop reco very mode.
Re covery mode is auto maticallydeactivated in
th efo llowing situations:
R you are actually tr avelling fasterthan
15 km/h R
afte r a running time of 30 seconds
R it is de tected that an object has hit the
underbody of theve hicle hard
R not all conditions are met
% Further information on reco very mode
(/ page 274).
Individual wheel con trol
Individual wheel control enables theve hicle le vel
to be set separately for each wheel. #
Select Individual wheel control. #
Set theve hicle le velfo rth e desired wheel.
% You can also use theto uch displ aytoset the
le ve lfo r two or more wheels at the same
time. #
Select Resettoset all wheels tothe default
setting.
Individual wheel control is automatically deacti‐
va ted in thefo llowing situations:
R you are tra velling fasterthan 15 km/h
R it is de tected that an object has hit the
underbody of theve hicle hard R
not all conditions are met
% Further information on individual wheel con‐
trol (/ page275). Pa
rking Assist PARKTRONIC Fu
nction of Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC is an electronic
parking assi stance sy stem with ultrasound. It
monitors the area around your vehicle using six
sensors on the front bumper and six sensors on
th ere ar bumper. Parking Assist PARKTRONIC
sho wsyouth e dis tance between your vehicle
and a de tected obs tacle visually and audibly.
Pa rking Assist PARKTRONIC is on lyan aid. It is
not a substitute foryo ur attention tothe sur‐
ro undings. The responsibility for safe manoeu‐
vring and parking remains with you. Make sure
th at there are no persons, animals or objects in
th e manoeuvring area while manoeuvring and
parking in/exiting parking spaces.
In thest andard setting, an intermit tent wa rning
to ne sounds from a di stance of appr oximately
0.3 m toan obs tacle in front and appr oximately Driving and parking
279

Displ
ayofActive Parking Assist PARKTRONIC
in the head-up display
Optionally, obs tacles de tected byActive Parking
Assist PARKTRONIC from a dis tance of appr ox‐
imately 1.0 m in front 1and 0.6 m on the sides
2 can also be displa yed in the head-up displa y.
Sy stem limits
Pa rking Assist PARKTRONIC does not necessa‐
ri ly take into account thefo llowing obs tacles:
R Obs tacles bel ow the detection range, e.g.
pe rsons, animals or objects. R
Obs tacles ab oveth e de tection range, e.g.
ove rhanging loads, overhangs or loading
ra mp s of lor ries.
The sensors must be free of dirt, ice and slush.
Otherwise, they may not function cor rectly.
Clean the sensors regularly, especially af ter driv‐
ing off-road, taking care not toscratch or dam‐
age them.
Ve hicles with trailer hitch: Parking Assist
PA RKTRONIC is deacti vatedfo rth ere ar zone
when you es tablish an elect rical connection
between your vehicle and a trailer. Problems with
Parking Assist PARKTRONIC Ve
hicles without 360° Camera Ve
hicles with 360° Camera Driving and parking
281

The
vehicle or other objects could oth‐
erwise be damaged. If
th eé symbol is shown in the multifunction
displa y,Pa rking Assist PARKTRONIC is not
active.
Multimedia sy stem:
4 Settings 5
Quick access
5 PARKTRONIC #
Activate or deacti vate the function.
% Parking Assist PARKTRONIC is automatical ly
activated when theve hicle is star ted.
Fu nction of Trailer Manoeuvring Assist
* NO
TEDama getotraile rswith a stabilisa‐
tion device against swerving In
the case of trailers with a stabilisation
device against swerving, the trailer or trailer
to w hit chcould be damaged. #
If a trailer coupling wi thTrailer Manoeu‐
vring Assist is used, on lyuse trailers without a
stabilisation device against
swerving. *
NO
TEDama gedue to ov erhanging loads
in front or dr awbar ins tallations The
vehicle and the trailer may be damaged
during manoeuvring due toove rhanging
loads at the front of the trailer or dr awbar
ins tallations. #
Pay attention to overhanging loads or
dr aw bar ins tallations while manoeu‐
vring. Tr
ailer Manoeuv ring Assi stassists you when
re ve rsing with a trailer. By means of a turning
angle sensor in the trailer coupling, Trailer
Manoeuv ring Assi stmonitors the articulation
angle between theve hicle and trailer and
adjusts it toa specified value.
Yo u can either en terth e articulation angle value
directly via the multimedia sy stem or use a
st ra ightening manoeuvre. When car rying out a
st ra ightening manoeuvre, the sy stem calculates
th e articulation angle automatically and stra ight‐ ens
theve hicle/trailer combination tothe trail‐
er's cur rent di rection.
Tr ailer Manoeuv ring Assi stmust be taught-in
before it can adjust the articulation angle
(/ page 284).
Obser vethe no tes on towing a trailer
(/ page 311).
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
R The gradient is more than appr oximately
15 %.
Using Trailer Manoeuvring Assist
Re quirements:
R The ignition and engine are on and theve hi‐
cle is operational.
R A trailer has been de tected. 284
Driving and pa rking

Te
aching-in Trailer Manoeuvring Assist #
Drive forw ards a short dis tance wi th the car/
trailer combination.
The comple tedte ach-in process is shown in
th e media displa y.
Using Trailer Manoeuvring Assist #
Press button 1. #
Engage reve rsege ar k.
The camera image is shown in the media dis‐
pla y. #
Adjusting the articulation angle
(/ page 285).
or #
Activating thest ra ightening manoeuvre
(/ page 285). #
Accelerate and brake as requ ired.
% Pay attention toyour sur roundings and be
re ady tobrake at all times.
Ad justing Trailer Manoeuvring Assist (multi‐
media sy stem)
Re quirements:
R The ignition and engine are on and theve hi‐
cle is operational.
R The zero point of the car/t railer combination
has been taught-in bybrief lydriving forw ards
(/ page 284).
R Trailer Manoeuv ring Assi sthas been star ted
( / page 284).
R The vehicle is stationary R
The gradient is less than appr oximately 15%.
Ad justing the articulation angle of the trailer #
Select .
The articulation angle can be changed on the
media display or on theto uchpad. #
Swipe left or right tochange the articulation
angle.
% The maximum articulation angle depends on
the length of the trailer. This is calculated by
th e sy stem bydriving theve hicle forw ards,
including cornering. Before the length of the
trailer has been calculated, the maximum
articulation angle is appr oximately 23°. The
longer the trailer is, the higher the maximum
articulation angle (max. appr oximately 60°). #
Set the desired articulation angle.
When the articulation angle entered has been
re ached, the dr awbar is bloc kedby the sy stem
so that the angle is maintained. Driving and parking
285

Ac
tivating the stra ightening manoeuvre #
Select .
The sy stem calculates the articulation angle
in such a wayth at the direction of the trailer
at the time of activation is maintained. There
is a short counter steering mo vement of the
trailer while theve hicle is reve rsed, which
th en guides it back tothe desired line. In this
wa y,theve hicle is aligned stra ight with the
trailer and at the same time the direction of
th e trailer is maintained.
Ad justing the warning tones of Parking
Assist PARKTRONIC
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Camera & parking 5
Set warning tone
Ad justing the volume of thewa rning tones #
Select Warning tone volume. #
Set a value. Ad
justing the pitch of the warning tones #
Select Warning tone pitch.
Set a value.
Specifying thest arting point for the warning
to nes
Yo u can specify whe ther thePa rking Assist
PA RKTRONIC warning tones should commence
when theve hicle is fur ther aw ay from an obs ta‐
cle. #
Select Warn early all-round. #
Activate or deacti vate the function.
Ac tivating/deactivating audio fadeout
Yo u can specify whe ther thevo lume of a media
source in the multimedia sy stem is tobe
re duced when Parking Assist PARKTRONIC
sounds a warning tone. #
Select Audio fadeout during warning tones. #
Activate or deacti vate the function. Re
versing camera Fu
nction of there ve rsing camera If
yo u ha veactivated the function in the multime‐
dia sy stem, the image from reve rsing camera 1
is shown in the media display when reve rsege ar
is engaged. Dynamic guide lines show the path
th eve hicle will take with thesteering wheel in its 286
Driving and parking

cur
rent position. This helps youto orient your‐
self and toavoid obs tacles when reve rsing.
The reve rsing camera is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that there
are no persons, animals or objects etc., in the
manoeuvring area while manoeuvring and park‐
ing.
Depending on theve hicle equipment, you can
select from thefo llowing vie ws:
R Normal view
R Wide-angle view
R Trailer view
The area behind theve hicle is displa yed as a
mir ror image, as in the inside rearview mir ror.
Ve hicles without Active Parking Assist
The following camera vie wsare available in the
multimedia sy stem: Normal view
1 Yellow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic)
2 Yellow guide line at a dis tance of appr ox‐
imately 1.0 m from there ar area
3 Yellow lane marking the course the tyres will
ta ke atthe cur rent steering wheel angle
(dynamic)
4 Bumper
5 Red guide line at a dis tance of appr oximately
0.3 m from there ar area Wi
de-angle view Tr
ailer view (vehicles with a trailer hit ch)
1 Yellow guide line, locating aid Driving and parking
287

2
Red guide line at a dis tance of appr oximately
0.3 m from the ball head of the trailer hitch
3 Ball head of the trailer hitch
Ve hicles with Active Parking Assist
The following camera vie wsare available in the
multimedia sy stem: Normal view
1 Yellow lane marking the course the tyres will
ta ke atthe cur rent steering wheel angle
(dynamic)
2 Yellow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic) 3
Red guide line at a dis tance of appr oximately
0.3 m from there ar area
4 Yellow warning display of Parking Assist
PA RKTRONIC: obstacles are at a dis tance of
between appr oximately 0.6 m and 1.0 m
5 Redwa rning display of Parking Assist
PA RKTRONIC: obstacles are very close
(appr oximately 0.3 m or less)
6 Orange warning display of Parking Assist
PA RKTRONIC: obstacles are a medium dis‐
ta nce away (between appr oximately 0.3 m
and 0.6 m)
% Ifth e entire sy stem fails, the internal seg‐
ments of thewa rning display are shown in
re d and theé symbol appears in the mul‐
tifunction display in the instrument clus ter.
If th e sy stem fails at there ar, there ar seg‐
ments are shown in red when reve rsing and
are hidden when driving forw ards.
When Active Parking Assist is active, lane
markings 1are displa yed in green.
If Pa rking Assist PARKTRONIC is deacti vated,
th ewa rning display fades out. Wi
de-angle view Tr
ailer view (vehicles with a trailer hit ch)
1 Yellow guide line, locating aid 288
Driving and parking