2019 MERCEDES-BENZ GLS SUV fuel

Opening
theAd Blue ®
filler cap #
Press on the back area of fuel filler flap 1. #
Turn AdBlue ®
filler cap 2anti-clockwise and
re mo veit.
% You can also store theAd Blue ®
filler cap in
th e fuel filler cap holder in the fuel filler flap
hin gearm. Prepa
ring theAd Blue ®
re fill canis ter #
Screw onthefast ener of AdBlue ®
re fill canis‐
te r2. #
Screw disposable hose 1onto the opening
of Ad Blue ®
re fill canis ter2 until hand-tight. To
p up AdBlue ® #
Screw disposable hose 1onto thefiller
neck of theve hicle until hand-tight. #
Lift up and tip AdBlue ®
re fill canis ter2.
The filling process stops when theAd Blue ®
ta nk is compl etely full.
Ad Blue ®
re fill canis ter2 can be remo ved
when it has been only partially em ptied. #
Unscr ew and close disposable hose 1and
Ad Blue ®
re fill canis ter2 inreve rse order. #
Replace theAd Blue ®
fuel filler cap and turn it
clockwise. Driving and parking
217

#
Close the fuel filler flap. #
Swit chon the ignition for at least 60 sec‐
onds.
% Ifth eve hicle could not be star ted as the
Ad Blue ®
tan kwa s em pty, it can take up to
60 seconds forth ere fill to be 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. #
Ensure that the par kedve hicle is alw ays
properly secured against rolling away as
fo llo ws: R
on uphill or downhill gradients, turn
th e front wheels so that theve hicle
ro lls towa rdsth eke rb if it starts
moving.
R apply the parking brake.
R switch the transmission toposition
j. &
WARNING Risk offire caused byhot
ex haust sy stem parts
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact
wi th hot parts of theex haust sy stem or
ex haust gasflow. #
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 unat tended in theve hicle,
th ey could:
R Open doo rs,th ereby 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. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. 218
Driving and pa rking

Changing
the tar get speed #
Toincrease or decrease the tar get speed:
press rocker switch 1uptothe point of
re sis tance for a higher target speed and
down for a lo werta rget speed.
The selected target speed increases or
decreases by1 km/h and appears with the
DSR symbol in the multifunction displa y.%
The target speed alw ays adjusts in 1 km/h
increments. This is rega rdless of whe ther
yo u press therock er switch toor be yond the
point of resis tance. Ac
tive Di stance Assist DISTRO NIC Fu
nction of Active Di stance Assist
DISTRO NIC Ac
tive Dis tance Assi stDISTRONIC maintains the
set speed on free-flowing roads. If vehicles in
front are de tected, the set dis tance is main‐
ta ined, if necessar y,until theve hicle comes to a
halt. The vehicle accelerates or brakes depend‐
ing on the dis tance totheve hicle in front and th
e set speed. The speed and dis tance tothe
ve hicle in front are set and sa ved on thesteering
wheel on vehicles without the Driving Assis tance
Pa ckage, in thera nge between 20 km/h and
200 km/h and, on vehicles with the Driving
Assis tance Package, in thera nge between
20 km/h and 210 km/h. The maximum speed is
re duced when driving in LOWRANGE off-road
ge ar (/ page210).
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) (/ page 203)
R Vehicles with Driving Assistance Pack‐
age: reacts tostationary vehicles de tected in
urban speed ranges (e xcept bicycles and
mo torcyc les).
R Initiates acceleration tothestored speed if
th e turn signal indicator is switched on to
ch ange totheov ertaking lane.
R Vehicles with Driving Assistance Pack‐
age: takes one-sided overtaking restrictions
into account on mo torw ays or on multi-lane Driving and parking
247

permissible speed applying
for a vehicle with a
trailer is not de tected bythe sy stem. In these sit‐
uations you must adjust your speed yourself. &
WARNING Risk of accident due toActive
Speed Limit Assi stadapting theve hicle's
speed
The speed adop tedby Active Speed Limit
Assi stmay be too high or incor rect in some
individual cases, su chas:
R Inthewe t or in fog
R When towing a trailer #
Ensure that the driven speed complies
with traf fic re gulations. #
Adjust the driving speed tosuit cur rent
traf fic and weather conditions. Fu
nction of route-based speed adaptation %
The following function is countr y-dependent
and only available in conjunction with the
Driving Assi stance Package. When Dis
tance Assi stDISTRONIC is acti ve,the
function adju ststh e speed depending on the
ro ute events ahead. Depending on the drive pro‐
gram selected, theve hicle negotiates thero ute
eve nt ahead in a fuel-s aving, com fortable or
dynamic manner. When thero ute event has been
passed, theve hicle accelerates again tothe
st ored speed. The set dis tancetotheve hicle in
front, vehicles de tected ahead and speed restric‐
tions ahead are take n into account.
Ro ute-based speed adjustment can be config‐
ured in the multimedia sy stem (/ page 253).
Ro ute events ahead are:
R Bends
R T-junctions, roundabouts and tollst ations
R Turns and exits
R Traf fic jams ahead (only wi thLive Traf fic
( / page 431))
% When theto llst ation is reached, Active Dis‐
ta nce Assi stDISTRONIC adopts the speed as
th estored speed. Also,
the speed is reduced if the turn signal to
ch ange lanes is swit ched on and one of thefo l‐
lowing situations is de tected:
R Turning off at junctions
R Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts
and traf fic lights, as route-based speed adap ta‐
tion does not brake theve hicle toast andstill.
When route guidance is active, thefirs t speed
adjustment is car ried out automaticall y.Ifthe
turn signal indica tor is switched on, the selected
ro ute is confirmed and fur ther speed adjustment
is activated.
Speed adjustment is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched off
before thero ute event.
R Ifth e driver depresses the accelera tor or
brake pedal during the process. 252
Driving and parking

#
Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accelera‐
tion. #
Swit chon ESP ®
once the acceleration proce‐
dure is comple te. ESP ®
will otherwise not be
able tostabilise theve hicle if theve hicle
st arts toskid or a wheel starts tospin.
Cancelling thest art-off assi st #
Remo veyour foot from the accelerator pedal. #
Reactivate the ESP ®
. AIRMATIC
Fu
nction of AIRMATIC
AIRMATIC is an air suspension sy stem with an
all-round le vel control sy stem, which also
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 consists of:
R All-round air suspension
R Speed-dependent lo wering
R Manually selectable high-l evel 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 262
Driving and parking

Multimedia sy
stem:
4 © 5
Settings
5 Schnellzugriff (Quick access) #
Select Lower when entering On.
The vehicle is lo weredto low le vel -2 tofacili‐
ta te entering and exiting.
% Further information on AIRMATIC
(/ page 262). 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 tuning is adjus ted depending on the
ro 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 comprises:
R 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
R Manual le vel adjustment
R ADS PLUS (Adaptive Damping Sy stem with
const ant adjustment of damping characteris‐
tics)
R DYNA MIC SELECT switch and le vel button Driving and parking
269

Instrument display
overview &
WARNING Risk of accident due toan
instrument display malfunction
If th e Instrument Display has failed or mal‐
functioned, you may not recognise function
re strictions applying tosaf etyre leva nt sys‐
te ms.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y. #
Have theve hicle checked immediately
at a qualified specialist workshop. If
th e operating saf ety of your vehicle is
impaired, park theve hicle safely as soon as pos‐
sible. Contact a qualified specialist workshop. Instrument display in
the widescreen cockpit 1
Speedome ter (e xamp le)
2 Multifunction display
3 Rev counter (e xample)
4 Coolant temp erature display
5 Fuel le vel and fuel filler flap location indica‐
tor
% In addition tothe multifunction display 2,
fur ther conte nt can be shown on displ ays1
and 3(/ page 322).
The segments on the speedome ter1 indica te
th e sy stem status forth efo llowing:
R Cruise control(/ page241) R
Limi ter (/ page242)
R Active Dis tance Assi st
DISTRONIC( /page 247)
* NO
TEEngine dama gedue toexc essively
high engine speeds The engine will be damaged if
you drive with
th e engine in theov errevving range. #
Do not drive wi th the engine in theove r‐
re vving range. The fuel supply will be inter
rupted toprotect the
engine when there d mark on there v counter
(o ve rrev ving range) is reached.
During no rmal operating conditions, the coolant
te mp erature display may rise to120 °C. &
WARNING Danger of bu rns when open‐
ing the bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids. In
stru ment Display and on-board computer 319

1
Displ aycontent, le ft(exa mp le: speedom eter)
2 The index points show the selected display
conte nt.
Display content selection, le ft:
R Speedom eter
R Time/date
R Trip computer From startandFrom reset
R Range
R Audio
R Angl e of incline and approach/departure
angle 3
Display conte nt, centre (examp le: media)
Display con tent selection, centre:
R Assi stance graphic
R Telephone
R Navigation
R Trip
R Radio
R Media
R Styles and display
R Service 4
Display conte nt,right (e xamp le:rev counter)
Display content selection, right:
R Rev counter
R Average fuel consum ption
R ECO display
R Navigation
R G-me ter
R Assi stance graphic
R 4MATIC
R Suspension (depending on theve hicle's
equipment) Instrument Display and on-board computer
323