2020 MERCEDES-BENZ GLS SUV tow bar

Fo
rto wing, use a tow rope or tow bar with bo th
axles on the ground. Do not use tow bar sys‐
te ms. *
NO
TEDama getotheve hicle due to tow‐
ing away incor rectly #
Obser vethe instructions and no tes on
to wing away. Pe
rm itted towing me thods Ve
hicle equipment/ towing
me thod Bo
th axles on thegr ound Fr
ont axle raised Re
ar axle raised
4MATIC vehicles Yes, maximum 50 km at 50 km/h No NoTo
wing away theve hicle with bo thaxles on
th egr ound #
Obser vethe no tes on the permitted towing
me thods (/ page 385). #
Make sure that the battery is connected and
ch arge d. A dischar
ged battery has thefo llowing ef fects:
R the engine cann otbe star ted
R the electric parking brake cann otbe released
or applied
R the automatic transmission cann otbe shif ted
to position iorj %
Ifth e automatic transmission cann otbe shif‐
te dto position i, orthe multifunction dis‐
play in the instrument clus ter does not show
anything, theve hicle must be transpor ted
aw ay ( /page 388). A towing vehicle with
lifting equipment is requ ired forve hicle
transpor tation. 386
Breakdown assi stance

*
NO
TEDama gedue to to wing away at
exc essively high speeds or over long dis‐
ta nces The driv
etra in could be damaged when tow‐
ing at excessively high speeds or over long
dis tances. #
Atowing speed of 50 km/h must not
be exc eeded. #
Atowing dis tance of 50 km must not be
exc eeded. &
WARNING Risk of accident when towing
a ve hicle which is too heavy
If th eve hicle being tow- star ted or towed
aw ay is heavier than the permissible gross
mass, thefo llowing situations can occur:
R theto wing eye may become de tach ed.
R the car/t railer combination may swer ve
or eve nove rturn. #
If ano ther vehicle is tow- star ted or
to we daw ay, its weight must not exceed th
e permissible gross mass of your own
ve hicle. #
Information on the permissible gross mass of
th eve hicle can be found on theve hicle iden‐
tification plate (/ page415). #
Do not open the driver's door or front
passenger door as the automatic transmis‐
sion may otherwise shift toposition jauto‐
maticall y. #
Fittheto wing eye (/ page 389). #
Fasten theto w bar.
* NO
TEDama gedue toincor rect connec‐
tion of theto w bar #
Onlyconnect theto w rope or tow bar to
th eto wing eyes. %
You can also attach theto w bar tothe trailer
hitch. #
Deactivate the automatic locking mechanism
(/ page 84). #
Do not activate the HOLD function. #
Deactivate tow- aw ay protection
(/ page 103). #
Deactivate Active Brake Assi st
( / page 253). #
Shift the automatic transmission toposition
i(/ page 205). #
Release the electric parking brake. &
WARNING Risk of accident due tolimi‐
te d saf ety-re lated functions during the
to wing process
Saf ety-re lated functions are limited or no lon‐
ge rav ailable in thefo llowing situations:
R the ignition is switched off.
R the brake sy stem or po werst eering sys‐
te m is malfunctioning.
R the energy supply or the on-board electri‐
cal sy stem is malfunctioning.
When your vehicle is then towe daw ay, signif‐
icantly more ef fort may be requ ired tosteer
and brake than is no rmally requ ired. #
Use a tow bar. Breakdown assis
tance 387

#
Make sure that thesteering wheel can
mo vefreely, before towing theve hicle
aw ay. *
NO
TEDama gedue toexcessive tracti ve
po wer If
yo u pull away sharpl y,the tractive po wer
may be too high and theve hicles could be
damaged. #
Pull away slowly and smoo thly. Loading the
vehicle for transport #
Obser vethe no tes on towing away
( / page 386). #
Connect theto w bar totheto wing eye in
order toload theve hicle.
% You can also attach theto w bar tothe trailer
hitch. #
Shift the automatic transmission toposition
i. %
The automatic transmission may be loc ked
in position jintheeve nt of dama getothe
electrics. Toshift toi , pr ovide the on-
board electrical sy stem with po wer
( / page 384). #
Load theve hicle onto the transpor ter. #
Shift the automatic transmission toposition
j. #
Use the electric parking brake tosecure the
ve hicle against rolling away. #
Only secure theve hicle bythe wheels.
Ve hicles with ADS PLUS (Adaptive Damping
Sy stem PLUS) &
WARNING Risk of an accident when
transporting vehicles with Adaptive
Damping Sy stem PLUS
The reduced damping forc es on theve hicle
being transpor ted can cause theve hicle/
trailer combination tostart toswing.
As a result, when transporting vehicles with
th eAd aptive Damping Sy stem PLUS, the ve
hicle/trailer combination may start toskid.
Consequentl y,yo u could lose cont rol of your
ve hicle. #
When transporting, ensure that:
R theve hicle has been loaded onto
th e transpor ter cor rectly
R theve hicle is secured at all four
wheels with suitable tensioning
st ra ps
R the maximum permissible speed of
60 km/h is not exceeded when
transporting *
NO
TEDama getotheve hicle from secur‐
ing it incor rectly #
After loading, theve hicle must be
secured on all four wheels. Otherwise,
th eve hicle could be damaged. #
A minimum dis tance of 20 cm up wards
and 10cm down wards must be kept to
th e transport platform. 388
Breakdown assis tance

to
wing eye. Fasten theto w bar tothe trailer
hitch.
% Make sure that co ver1 engages in the
bumper when youre mo vetheto wing eye.
* NO
TEDama getotheve hicle due to
incor rect use of theto wing eye When a
towing eye is used toreco ver a vehi‐
cle, theve hicle may be damaged in the proc‐
ess. #
Only use theto wing eyeto to waw ay or
to w start theve hicle. To
w starting theve hicle (eme rgency engine
st art) Ve
hicles with automatic transmission
* NO
TEDama getothe automatic trans‐
mission due to tow-starting The automatic transmission may be damaged
in the process of tow- starting vehicles with
automatic transmission. #
Vehicles with automatic transmission
must not be tow- star ted. #
Vehicles with automatic transmission must
not be tow- star ted. Electrical fuses
Note
s on electrical fuses &
WARNING Risk of accident and inju ry
due to ov erloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher
amperage, the electric line could be overloa‐
ded.
This could result in a fire. #
Alw aysre place faulty fuses with speci‐
fi ed new fuses conta iningthe cor rect
amperage. *
NO
TEDama gedue toincor rect fuses Electrical components or sy
stems may be
damaged byincor rect fuses, or their func‐
tionality may be significant lyimpaired. #
Only use fuses that ha vebeen appr oved
by Mercedes-Benz and which ha vethe
cor rect fuse rating. Blown fuses mu
stbe replaced with fuses of the
same rating, which you can recognise bythe col‐
our and the labelling. The fuse ratings and fur‐
th er information tobe obser ved can be found in
th e fuse assignment diagram.
Fu se assignment diag ram: onthe fuse box in
th e load compartment (/ page 392).
* NO
TEDama geor malfunctions caused
by moisture Moisture may cause dama
getothe electrical
sy stem or cause it tomalfunction. 390
Breakdown assi stance

D
Dashboa rd
see Cockpit
Data acquisition Vehicle.................................................... 34
Data pr otection rights
Data storage............................................ 38
Data storage
Data pr otection rights............................. 38
Electro nic control units........................... 34
Online service s........................................ 37
Ve hicle.................................................... 34
Deactivating the alarm (A TA ).................... 103
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility.................26
Jack......................................................... 30
Specific absor ption rate.......................... 26
TIREFIT kit............................................... 31
Wi reless vehicle components.................. 26
Decorative foil (cleaning instructions) .... 368DeNOx agent
see AdBlue ®
De stination entry
En tering a POI or address...................... 326
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ..............................31
Diesel Low outside temp eratures..................... 420
No tes....................................................4 20
Digital Owner's Manual .............................. 20
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting................................................... 16 2
DIRECT SELECT le ver
Engaging drive position......................... 206
Engaging neutral................................... 205
Engaging pa rkposition.......................... 206
Enga ging park position automatically....2 06
Engaging reve rsege ar........................... 205
Fu nction................................................ 204
Displ ay(care) ............................................ .370 Display (MBUX multimedia sy
stem)
Home screen........................................ .312
Display (multimedia sy stem)
Operating.............................................. .313
Display (on-boa rdcompu ter)
Displ ays on the multifunction displa y.... 308
Displ aymessage
Calling up (on-board compu ter)............. 433
No tes....................................................4 33
Display messages ¯ - - - km/h ...................................... 461
ç - - - km/h ..................................... 462
È - - - km/h ...................................... 461
# 12V battery See Owner's Man‐
ual......................................................... 479
Û 48 V battery See Owner's Man‐
ual......................................................... 480
: Active Light Sy stem inoperative... 440
¯ AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km................................................. .487 Index
513

Ty
re press. monitor inoperative.............4 82
Ty re press. monitor inoperative No
wheel sensors ...................................... .482
Ty re(s) ove rheated................................. 484
Up date failed ........................................ .442
Up date failed Software remains
unchanged........................................... .442
Up date successfully comple ted............. 442
Wi thout changing gear, consult work‐
shop......................................................4 54
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door loc k................................ .81
Child saf ety lock (rear door).................... 75
Locking (emergency key)......................... 84
Opening (from inside).............................. 82
Po we r closing function............................ 84Un
locking (emer gency key)..................... 84
Un locking (from inside).......................... .82
Door cont rol panel....................................... 14
Door cont rol panel (rear) ............................ 16
Downhill driving assistance see DSR
Dr aw bar
see Tow- bar sy stem
Drive Away Assist ...................................... 292
Drive Away Assist
see Pr otection against collision
Drive position Enga ging............................................... 206
Drive prog ram display .............................. 203
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat
Driving abroad Symmetrical low beam.......................... 15 6
Driving saf ety sy stem
ABS (Anti-lock Braking Sy stem).............2 26Ac
tive Brake Assi st................................ 24 8
Ad aptive brake lights............................. 231
BA S (Brake Assi stSystem).................... 227
Cameras................................................ 224
EBD (Elect ronic Brake forc e Distribu‐
tion).......................................................2 30
ESP ®
Crosswind Assis t.......................... 228
ESP ®
trailer stabilisation...................... .228
Off-road ABS......................................... 226
Overview.............................................. .225
Ra dar and ultrasonic sensor s................ 224
Re sponsibility........................................2 24
ST EER CONTROL................................... 230
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Dis tance Assi stDISTRONIC
see Active Emergency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assi st
see Active Steering Assist
see AIRMATIC
see ATTENTION ASSIST
see Blind Spot Assist 518
Index

Exterior lighting
see Lights
Exterior lighting (care) .............................. 369F
Fa tigue de tection
see ATTENTION ASSIST
Fire extinguisher........................................ 374
Fi rs t-aid kit (soft sided) ............................373
Flacon Inserting/removin g............................... 178
Flat towing
see Tow- bar sy stem
Flat tyre MOEx tended tyres................................. 375
No tes..................................................... 374
TIREFIT kit..............................................3 76
Wheel chang e....................................... .402
Floor mats.................................................. 154
Fo g light (extended range) ....................... 16 0
Fo il co vering
Ra dar and ultrasonic sensor s................ 224Fo
lding table .............................................. 13 5
Fr ag rance
see Fragrance sy stem
Fr ag rance sy stem
Inserting/removing theflacon.............. .178
Setting................................................... 178
Fr ee driving mode
St arting................................................. .276
Fr ee software.............................................. 38
Fr equencies
Mobile phon e......................................... 414
Tw o-w ayradio........................................ 414
Fr ont airbag (driver, front passenger)...... .45
Fr ont passenger seat
Ad justing from the driver's seat............ 108
Ad justing from there ar........................ .109
Fr ont passenger seat
see Seat
Fu el
Ad ditives...............................................4 20
Diesel.................................................... 420
E10....................................................... .419
Fu elreser ve........................................... 421 Low outside
temp eratures..................... 420
Pe trol..................................................... 419
Quality (diesel )...................................... 420
Quality (p etro l)...................................... .419
Re fuelling............................................... 211
Sulphur content..................................... 419
Ta nk content.......................................... 421
Fu nction seat
see Door cont rol panel
Fu nction seat (rear)
see Seat (rear)
Fu ses
Before replacing a fuse.......................... 390
Fu se assignment diagram..................... 390
Fu se box in the engine compartmen t.... 391
Fu se box in the front passenger foot‐
we ll....................................................... 392
Fu se box in the load compartment........ 392
Fu se box on the dashboard................... 392
No tes....................................................3 90 G
Garage door opener Clearing the memory.............................2 21 Index
521