2020 MERCEDES-BENZ GLS SUV fuel

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

Obser
vethe no tes on operating fluids
(/ page 417).
Ad Blue ®
is available here:
R AdBlue ®
can be topped up byfast service at
a qu alified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
R AdBlue ®
is available at many filling stations
from AdBlue ®
filling pumps.
R Alternativel y,Ad Blue ®
is available at qualified
specialist workshops, e.g. Mercedes-Benz
Service Centres, and at many filling stations
in Ad Blue ®
re fill canis ters or AdBlue ®
re fill
bottles.
% Ensure the connection between there fill
con tainer and vehicle filler neck does not
drip. To
pping up AdBlue ®
* NOTEEngine dama gedue toAd Blue ®
being in the fuel #
AdBlue ®
must not be used tofill the
fuel tank. #
Only use AdBlue ®
to fill th eAd Blue ®
ta nk. #
Do not overfill theAd Blue ®
tank. *
NO
TEContamination of theve hicle inte‐
ri or due toAd Blue ®
lea kage #
Afterto pping up, carefully close the
Ad Blue ®
re fill con tainer. #
Avoid car rying AdBlue ®
re fill con tainers
permanently in theve hicle. Re
quirements:
R The vehicle is unloc ked. The
following messages appear in order in the
multifunction display when theAd Blue ®
tank
requ irestopping up:
R Refill AdBlue See Owner’s Manual The
Ad Blue ®
leve l has fallen below there ser ve
ra nge. Top up AdBlue ®
immediately.
R Top up AdBlue Emergency op. in XXX miles
See Owner's ManualThe low AdBlue ®
level
will lead tolimited per form ance af terthe
re maining dis tance displ ayed has been
driven. Top up AdBlue ®
immediately.
R XX,X l Top up AdBlue Emer. op.: max. XXX
km/h Start not poss. in XXX kmThe low
AdBlue ®
leve l will lead tolimited per form‐
ance from the speed displa yed. Af terthe
re maining dis tance displ ayed has been cov‐
ered, it will no longer be possible tostart the
engine. Top up with at least the amount of
Ad Blue ®
displ ayed.
R XX,X l Top up AdBlue Switch on ignition, wait
60 sec. or eng. start not poss. TheAdBlue ®
ta nk is em pty. Yo u can no lon gerst art the
engine. Top up with at least the amount of Driving and parking
215

Ad
Blue ®
displ ayed. Switch on the ignition
and waitfor appro ximately 60 seconds. Start
th e engine.
Yo u can see theAd Blue ®
ra nge and le vel in the
Service menu in the multifunction displa y.
% The AdBlue ®
ra nge shown depends strongly
on the driving style and operating condi‐
tions. The actual range can therefore deviate
from the calculated range. Opening the
AdBlue ®
filler cap #
Press on the back area of fuel filler flap 1. #
Turn AdBlue ®
filler cap 2anti-clockwise and
re mo veit. To
pping up AdBlue ® #
Screw onthefast ener of AdBlue ®
re fill canis‐
te r4. #
Screw disposable hose 3onto the opening
of Ad Blue ®
re fill canis ter4 until hand-tight. #
Screw disposable hose 3onto thefiller
neck of theve hicle until hand-tight. #
Lift up and tip AdBlue ®
re fill canis ter4.
The filling process stops when theAd Blue ®
ta nk is compl etely full.
Ad Blue ®
re fill canis ter4 can be remo ved
when it has been only partially em ptied. 216
Driving and pa rking

#
Unscr ew and close disposable hose 3and
Ad Blue ®
re fill canis ter4 inreve rse order. #
Replace AdBlue ®
filler cap 2and turn it
clockwise until it audibly engages. #
Close fuel filler flap 1. #
Swit chon the ignition for at least 60 sec‐
onds.
% Ifth e engine could not be star ted due tothe
Ad Blue ®
tan k being empty, it can take up to
60 seconds forth eto p up tobe de tected. #
Start theve hicle.
% Avoid storing AdBlue ®
re fill con tainers per‐
manently in theve hicle. Pa
rking Pa
rking theve hicle &
WARNING Risk of accident and inju ry
caused byan insuf ficiently secu redve hi‐
cle rolling away
If th eve hicle is not securely par ked suf fi‐
ciently, it can rollaw ay in an uncont rolled
wa yev en at a slight downhill gradient. #
On uphill or downhill gradients, turn the
front wheels so that theve hicle rolls
to wa rdsth eke rb if it starts moving. #
apply the parking brake. #
Switch the transmission toposition j. &
WARNING Risk offire caused byhot
ex haust sy stem parts
Flammable materials such as lea ves, grass or
twigs may ignite. #
Park theve hicle so that no flammable
material can come into con tact wi thhot
ve hicle components. #
In particular, do not park on dry grass‐
land or har vested grain fields. &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unsupervised in theve hi‐
cle, they could, in pa rticular:
R open doors, thereby endangering other
persons or road users.
R get out and be stru ck byoncoming traf‐
fi c.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unat tended in the
ve hicle. Driving and parking
217

%
The maximum speed is reduced when driving
in LOW RANGE off-road gear (/ page 209).
Other features of Active Dis tance Assi st
DISTRONIC:
R Adjusts the driving style depending on the
selected drive program (fuel-saving, comfort‐
able or dynamic)
R Initiates acceleration tothestored speed if
th e turn signal indicator is switched on to
ch ange totheove rtaking lane
R Vehicles with Driving Assistance Pack‐
age:
- Reacts tostationary vehicles de tected in
urban speed ranges (e xcept bicycles and
mo torcyc les)
- Take s one-sided overtaking restrictions
into account on mo torw ays or on multi-
lane roads with separate car riag ew ays
(countr y-dependent)
Ve hicles with Driving Assistance Package
and Park ingPackage: ifth eve hicle has been
braked toast andstill on multi-lane, separate
car riag ew aysby Active Dis tance Assi st DISTRONIC, it can au
tomatically follow theve hi‐
cle in front driving off again within 30 seconds. If
a critical situation is de tected when driving off, a
visual and acoustic warning is given indicating
th at the driver must now take control of theve hi‐
cle. The vehicle is not accelerated any fur ther.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 224). Ac
tive Di stance Assist DIST RONIC displa ysin
th e instrument clus ter Assi
stant display
1 Route-based speed adap tation: type of route
eve nt (/ page 242)
2 Vehicle in front
3 Distance indica tor
4 Set specified di stance
5 Active Lane Change Assi stlane change dis‐
play Driving and parking
237

ensures
the best possible suspension and con‐
st ant ground clearance, even wi tha laden vehi‐
cle. When driving at speed, theve hicle is low‐
ered automatically toimpr ovedriving saf ety and
to reduce fuel consum ption. You also ha vethe
option of manually adjusting theve hicle le vel.
AIRMATIC is comprised of thefo llowing func‐
tions and components:
R All-round air suspension
R Speed-dependent lo wering
R Manually selectable high le vel setting for
grea ter ground clea rance which can be
adjus ted using a le vel button
R Vehicles with ADS PLUS: alsoAdaptive
Damping Sy stem with const ant adjustment
of damping characteristics for impr oved driv‐
ing comfort
Suspension setting and vehicle le vel per
drive prog ram
Drive program Aand;:
R The suspension setting is comfor table.
R The vehicle is set tothe normal le vel. R
When driving at speeds abo veappr oximately
14 0 km/h, theve hicle is lo wered.
R When driving at speeds below appr oximately
40 km/h, theve hicle is raised again.
Drive prog ram £ (Mercedes-Maybach vehi‐
cles only):
R The suspension setting is very comfor table.
R The vehicle is set tothe normal le vel.
R When driving at speeds abo veappr oximately
14 0 km/h, theve hicle is lo wered.
R When driving at speeds below appr oximately
40 km/h, theve hicle is raised again.
Drive prog ram C:
R The suspension setting is firm er.
R The vehicle is lo weredto sport le vel.
Drive prog ram B:
R The suspension setting is evenfirm er.
R The vehicle is lo weredto Sport + le vel. Drive program
F(vehicles without Off- road
pac kage)
R The suspension setting is suitable for easily
negotiable off-road terrain.
R The vehicle is set tooff-road le vel +1.
R When driving at speeds abo veappr oximately
80 km/h, theve hicle is lo wered.
R When driving at speeds below appr oximately
45 km/h, theve hicle is raised.
Drive program F(vehicles with Off- road
pac kage)
R The suspension setting is suitable for easi ly
negotiable off-road terrain.
R The vehicle is set tooff-road le vel +1.
R When driving at speeds abo veappr oximately
11 5 km/h, theve hicle is lo wered.
R When driving at speeds below appr oximately
75 km/h, theve hicle is raised.
Drive program G(vehicles with Off- road
pac kage)
R The suspension setting is suitable for dif ficult
off-road terrain. Driving and parking
263

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 rupte d in thefo llowing situa‐
tions:
R ave hicle door is opened.
R switch 1is pulled again.
R theve hicle is being driven fasterthan
2 km/h.
% The vehicle is automatically set tothe le vel
of the selected drive prog ram if you drive at
speeds greater than 2 km/h.
If indicator lamp 2flashes 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 wsthe
ve hicle tobe loaded more easil y.Obser ve
th e no tes on loading theve hicle when doing
th is (/ page132).
Ra ising there ar of theve hicle #
Che ckifth e battery is suf ficiently charge d. If
necessar y,start the engine. #
Pull switch 1briefly.
Indicator lamp 2goes out.
The vehicle will be raised tothe cur rently
selected le vel.
% The vehicle is automatically set tothe le vel
of the selected drive prog ram if you drive at
speeds greater than 2 km/h.
If th eve hicle cannot be raised: #
Ensure that the battery is suf ficiently
ch arge d; if necessar y,start the engine.
The raising process continues. E-
AC TIVE BODY CONT ROL Fu
nction of E- ACTIVE BODY CONT ROL
E- AC TIVE BODY CONTROL is an electrohydraulic
suspension sy stem with variable damping for
impr oved driving comfort. The all-round le vel
control sy stem ensures the best possible sus‐
pension and const ant ground clearance, even
with a laden vehicle. When driving at speed, the
ve hicle is lo wered automatically toimpr ovedriv‐
ing saf ety and toreduce fuel consum ption. The
suspension setting is adjus ted depending on thero
ad sur face, vehicle load and the drive program
selected.
The ROAD SUR FACE SCAN function de tects
areas of une venness in thero ad before you drive
ove rth em bymeans of a multifunction camera.
This reduces chassis mo vements.
The damping is adju sted individually toeach
wheel and depends on thefo llowing factors:
R Driving style, e.g. sporty
R Road condition, e.g. bumps
R Drive program
E- AC TIVE BODY CONTROL is comprised of the
fo llowing functions and components:
R Vehicles with Driving Assistance Pack‐
age: ROAD SUR FACE SCAN
R Cur veinclination function CURVE
R Recovery mode
R Individual wheel control
R Air suspension with auto matic level control
R Speed-dependent lo wering toreduce fuel
consum ption Driving and parking
269

Instrument display
overview 1
Display con tent on le ft(exa mp le: speedome‐
te r): speedome ter / time / date / trip com‐
puter From start andFrom reset /range /
audio / angle of incline and approa ch/
departure
The segments on the speedome ter indica te
th est atus of thefo llowing sy stems: cruise control/limiter/Active Dis
tance Assi st
DISTRONIC
2 Outside temp erature
3 Digital speedome ter
4 Time
5 Display content on right (e xamp le:tac home‐
te r): tach ome ter / average fuel consump‐
tion / ECO display / navigation / G-me ter / assi
stant display / 4MATIC / suspension
(equipment-dependent)
The fuel supply will be inter rupted toprotect
th e engine when there d mark on therev
counter (o verrev ving range) is reached.
6 Index points
These show the selected display or menu
conte nt. Instrument displ
ayand on-board computer 305