2020 MERCEDES-BENZ GLS SUV tyre pressure

Light and sight
......................................... 15 6
Exterior lighting .......................................... 15 6
Interior lighting ...........................................1 63
Wi ndsc reen wipers and windscreen
wa sher sy stem ............................................ 16 5
Mir rors ........................................................ 17 0
Area pe rmeable toradio wav es on the
windscreen ................................................ .173
Infrared-reflective windscreen function ...... 173Climate control
......................................... 174
Overview of climate contro l systems ........... 174
Operating the climate control sy stem ......... 175 Driving and pa
rking ................................. 187
Driving ........................................................ 187
DY NA MIC SELECT switch ............................2 01
Au tomatic transmission .............................. 204
Tr ans fer case .............................................. 209
Fu nction of the 4MATIC ...............................2 11
Re fuelling .................................................... 211
Pa rking ........................................................ 217
Driving and driving sa fety sy stems .............2 24
Tr ailer hit ch................................................ 295 Bicycle
rack function .................................. 300
Ve hicle towing instructions ........................ .302 Instrument display and on-board
comp
uter.................................................. 304
No tes on the instrument display and on-
board computer .......................................... 304
Instrument display overview ...................... .305
Overview of the buttons on thesteering
wheel ..........................................................3 06
Operating the on-board computer .............. 306
Overview of what is shown on the multi‐
function display .......................................... 308
Head-up display .......................................... 308 MBUX multimedia sy
stem ....................... 311
Overview and operation .............................. 311
Sy stem settings .......................................... 320
Na vigation .................................................. 324
Te lephone .................................................. .330
Mercedes me and apps .............................. 333
Mercedes-Benz emer gency call sy stem ...... 342
Ra dio, media & TV...................................... 349
Sound settings ........................................... 355 Main
tenance and care ............................. 357
ASS YST PLUS service inter val display ........ 357
Engine compartment .................................. 358
Cleaning and care ...................................... .364 Breakdown assistance
............................372
Emergency ................................................. .372
Flat tyre ...................................................... 374
Battery (vehicle) ......................................... 380
To w- starting or towing away ....................... 385
Electrical fuses ........................................... 390 Wheels and tyres
..................................... 393
No tes on noise or unusual handling char‐
acteristics .................................................. .393
No tes on regular lyinspecting wheels and
tyres .......................................................... .393
No tes on snow chains ................................ 393
Ty re pressure .............................................. 394
Wheel change ............................................ .397
Emergency spare wheel .............................. 407
Collapsible spare wheel .............................. 409 Contents
3

1
#! Turn signal lights →
15 8
2 ï Trailer hit ch →
493
3 6 Restra int sy stem →
492
4 å ESP®
OFF →
502
÷ ESP®
→
502
5 R Rear fog light →
157
6 K High beam →
15 8
L Low beam →
15 6
T Standing lights →
15 6
7 ÿ Coolant temp erature →
495
8 Coolant temp erature display →
305
9 ! Electric pa rking brake (yellow) →
498
A J Brakes (yellow) →
498
B L Distance warning →
500 C
# Electrical fault →
495
D Ù Powe rst eering →
493
E ! ABS →
502
F h Tyre pressure monitoring sy stem →
504
G % Diesel engine: preglow
H 8 Reser vefuel with fuel filler flap location
indicator →
495
I Fuel le vel →
305
J ! Electric parking brake (red) →
498
K J Brakes (red) →
498
L ü Seat belt →
492
M ; Engine diagnostics →
495
N ä Suspension (red) →
500
ä Suspension (yell ow) →
500 At
aglance – Indicator and warning lamps 11

1
B-pillar wi th:
QR code for accessing there scue card →
34
2 Safetyve sts →
372
3 Fire extinguisher →
374
4 ; me button →
335
G SOS button →
335
5 £ Hazard warning light sy stem →
15 8
6 Tocheck and top up operating fluids →
417
St arting assis tance →
384
7 Tow- starting or towing away →
386 8
Flat tyre →
374
9 Tow- starting or towing away →
386
A Fuelfiller flap with:
information label on fuel type →
211
information label on tyre pressure →
395
QR code for accessing there scue card →
34
B Warning triangle →
372
C TIREFIT kit →
376
D First-aid kit (so ftsided) →
373 At
aglance – Emer gencies and breakdowns 19

Pr
otection of the environment
+ ENVIRONMENTAL
NOTEEnvironmental
dama gedue tooperating conditions and
personal driving style The pollutant emission of
theve hicle is
directly related tothewa yyo u operate the
ve hicle.
Operate your vehicle in an environmentally
re sponsible manner tohelp pr otect the envi‐
ro nment. Please obser vethefo llowing rec‐
ommendations on ope rating conditions and
pe rsonal driving style.
Operating conditions: #
Make sure that the tyre pressure is cor‐
re ct. #
Do not car ryany unnecessary weight
(e.g. roof luggage rack s once you no
lon ger need them). #
Adhere tothe service inter vals.
A regularly serviced vehicle will contri b‐
ute toenvironmen tal pr otection. #
Alw ays ha vemaintenance workcar ried
out at a qualified specialist workshop.
Pe rsonal driving style: #
Do not depress the accelera tor pedal
when starting the engine. #
Do not warm upthe engine while the
ve hicle is stationar y. #
Drive carefully and maintain a suitable
di st ance from theve hicle in front. #
Avoid frequent, sudden acceleration
and braking. #
Change gear in good time and use each
ge ar on lyup toÔ of its maximum
engine speed. #
Switch off the engine in stationary traf‐
fi c, e.g. byusing the ECO start/ stop
function. #
Drive fuel-ef ficiently. Obser vethe ECO
display for a fuel-ef ficient driving style. Ta
ke -back of end-of-life vehicles
EU countries onl y:
Mercedes-Benz will take back your end-of-life
ve hicle for environment-friendly disposal in
accordance with the European Union(EU) End-
of-Life Vehicles Directive.
A network of vehicle take -ba ckpoints and dis‐
mantlers has been es tablished foryo uto return
yo ur vehicle. You can lea veit at any of these
points free of charge . This makes an impor tant
contribution toclosing there cycling circle and
conse rving resources.
Fo r fur ther information about there cycling and
disposal of end-of-li fevehicles, and theta ke-
back conditions, please visit the national
Mercedes-Benz website foryo ur count ry. 22
General no tes

Wire
less applications in theve hicle Te
ch nology Frequency rang eT ransmission output/magnetic field
st re ngth
Con venience central lo cking sy stem 20 kHz (9–90 kHz)≤ 72dBμA/m at 10 m
Wi reless po wer transmission 105 kHz (90–1 19kHz) ≤ 42 dBμA/m at10 m
Con venience central lo cking sy stem
Wi reless po wer transmission 12
5 kHz (1 19–135 kHz)≤ 42 dBμA/m at10 m
Near-field communication 13.553–13.567 MHz ≤ 42 dBμA/m at10 m
Con venience central lo cking sy stem, garage
door opener, tyre pressure monitoring sy stem 433 MHz (433.05–434.79 MHz)≤
10mW ERP
Heater boos ter function remo tecontrol, garage
door opener 868 MHz (868.0–868.6 MHz
)≤25 mW ERP
Heater boos ter function remo tecontrol, garage
door opener 869 MHz (868.7–869.2 MHz
)≤25 mW ERP
Blue tooth ®
, Kleer, RLAN, general remo tecon‐
trols, wi reless headphones 2.4 GHz ISM band (2400–2483.5 MHz
)≤100 mW EIRP
Sensor for interior pr otection, RLAN 5.8 GHz UNII-3 (5725–58 75MHz) ≤ 25 mW EIRP General no
tes27

The
following pr ovides you with general informa‐
tion rega rding data processing in theve hicle.
Ad ditional information rega rding exact ly which
da ta inyour vehicle are collected, sa ved and
transmit tedto third parties and for what pur‐
pose, can be found in the information directly
re lated tothe functional characteristics in ques‐
tion in their respective operating instructions.
This information is also available on line and,
depending on theve hicle equipment, digitally.
Pe rsonal data
Every vehicle is identified bya unique vehicle
identification number. Depending on the coun‐
tr y, this vehicle identification number can be
used by,fo rex ample, go vernmental auth orities
to determ ine the identity of theow ner. The reare
ot her possibilities touse data collec ted from the
ve hicle toidentify theow ner or driver, su chas
th e licence plate number.
Therefore, data generated or processed bycon‐
trol units may be attributable toa person or,
under cer tain conditions, become att ributable to
a person. Depending on which vehicle data are
av ailable, it may be possible tomake inferences about,
forex ample, your driving behaviour, your
location, your route or your use pat tern s.
Legal requirements rega rding the disclosure
of data
If legally requ ired todo so, manufacturers are, in
individual cases, legally obliged toprov ide gov‐
ernmental entities, upon request and tothe
ex tent requ ired, data stored bythe manufac‐
turer. Forex ample, this may be the case during
th e in vestigation of a criminal of fence.
Go vernmental entities are themselves, in individ‐
ual cases and within the applicable legal frame‐
wo rk, authorised toread out data from theve hi‐
cle. In the case of an accident, information that
can help with an in vestigation can, therefore, be
ta ke n from the airbag control unit, forex ample.
Operational data in theve hicle
This is data rega rding the operation of theve hi‐
cle, which ha vebeen processed bycontrol units.
This includes thefo llowing data, forex ample:
R vehicle status information such as the speed,
longitudinal acceleration, lateral accelera‐
tion, number of wheel revo lutions or thefa s‐
te ned seat belts displ ay R
ambient conditions, such as temp erature,
ra in sensor or dis tance sensor
General ly,th e use of these data is temp orar y;
th ey will not be stored be yond the period of
operation and will only be processed within the
ve hicle itself. Control units of ten contain da ta
memories forve hicle keys,fo rex ample. Their
use permits thete mp orary or permanent docu‐
mentation of tech nical information about the
ve hicle's operating state, component loads,
main tenance requ irements and tech nical events
or faults.
Depending on theve hicle equipment, thefo llow‐
ing data are stored:
R operating status of sy stem components,
such as fill le vels, tyre pressure or battery
st atus
R malfunctions or faults in impor tant sy stem
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag deployment or the inter ven‐
tion of stability control sy stems
R information on events leading tovehicle
damage General no
tes35

1
Fuelfiller flap
2 Brac ketfo r fuel filler cap
3 Tyre pressure table
4 QR code forre scue card
5 Fuel type #
Press the back area of fuel filler flap 1. #
Turn the fuel filler cap anti-clockwise and
re mo veit. #
Insert the fuel filler cap from abo veinto
brac ket2. #
Comp lete ly inse rtthe pump nozzle into the
ta nk filler nec k,hook in place and refuel. #
Only fill th e fuel tank until the pump nozzle
switches off.
% Vehicles with a diesel engine: theta nk
fi ller neck is designed forre fuelling at diesel
fi lling pumps.
% Vehicles with a diesel engine: whenthe
fuel tank is compl etely em pty, top up with at
least 5 litres of diesel.
% Vehicles with a diesel engine: use afiller
neck with a lar gediame terfo rve hicles with
a diesel engine when topping up fuel from a
fuel can. Otherwise, thefiller neck cannot
slide into theta nk. #
Replace the cap on thefiller neck and turn
clockwise until it engages audibl y. #
Close fuel filler flap 1. Ad
Blue ®
(vehicles with a diesel engine on ly) Note
s onrefilling AdBlue ®
Ad Blue ®
is a wate r-soluble fluid forth e NOx
ex haust gas af tertre atment of diesel engines. In
order forth eex haust gas af tertre atment tofunc‐
tion proper ly, only use AdBlue ®
in acco rdance
with ISO 22 241.
Ad Blue ®
is ch aracterised bythefo llowing:
R non-t oxic
R colourless and odourless
R non-flammable
If yo u open theAd Blue ®
tank, small amounts of
ammonia vapour may be released. Only fill the
Ad Blue ®
tank in well-ventilated areas.
Do not let AdBlue ®
come into contact wi thskin,
ey es or clo thes. Keep AdBlue ®
aw ay from chil‐
dren.
Do not ingest AdBlue ®
. If AdBlue ®
is swallo wed,
immediately rinse your mouth out thoroughly.
Drink plenty of water.Seek medical attention at
once. 214
Driving and pa rking

R
HOLD function (/ page 230)
R Hill Start Assist (/ page 231)
R Adaptive Brake Lights (/ page 231)
R Start-off assist
R ATTENTION ASSIST (/ page 232)
R Cruise contro l (/page 233)
R Limiter (/ page 234)
R Traf fic Sign Assi st (/ page 255)
R Speed Limit Assist (count ry-dependent)
(/ page 253)
R AIRMATIC (/ page 262)
R E-AC TIVE BODY CONTROL (/ page 269)
R Trailer Manoeuv ring Assi st (/ page 293)
Driving Assistance pac kage
The following functions are part of the Driving
Assis tance Package. Cer tain functions are only
av ailable in some countries. Some functions are
also available without the Driving Assis tance
Pa ckage, albeit with restricted functionality.
R Active Dis tance Assi stDISTRONIC
(/ page 236) R
Active Speed Limit Assi st(countr y-depend‐
ent) (/ page241)
R Route-based speed adap tation (countr y-
dependent) (/ page242)
R DSR (Dow nhillSpeed Regulation)
(/ page 244)
R Active Brake Assi st (/ page 248)
R Active Steering Assist (count ry-dependent)
(/ page 246)
R Active Emergency Stop Assist (countr y-
dependent) (/ page248)
R Active Stop-and-Go Assist (countr y-depend‐
ent) (/ page243)
R Blind Spot Assist and Active Blind Spot Assi st
with exitwa rning (/ page 257)
R Active Lane Keeping Assist (/ page 260)
Pa rking Package
R Reversing camera (/ page277)
R 360° Camera ( /page 280)
R Parking Assist PARKTRONIC ( /page 283)
R Active Parking Assist (/ page 288) Fu
nction of ABS The Anti-lock Brake Sy
stem (ABS) regulates the
brake pressure in critical driving situations:
R During braking, e.g. at full brake application
or insuf ficient tyre traction, the wheels are
pr eve nted from lo cking.
R Vehicle steerability while braking is ensured.
If ABS inter venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditions and can ser veas a reminder totake
ex tra care while driving. Fu
nctions of Off-road ABS %
Off-road ABS is activated automatically when
you select theF orG drive program.
Off-road ABS is specially adap tedfo r driving off-
ro ad:
R The front wheels lock cyclically during brak‐
ing.
R The braking dis tance is sho rtened due tothe
digging-in ef fect. 226
Driving and pa rking