2020 MERCEDES-BENZ GLS SUV engine

#
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Never lea vechildren unat tended in the
ve hicle. Yo
u can adjust the seats when the ignition is
switched off. &
WARNING Risk of becoming trapped
du ring seat adjustment
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. #
Make sure when adjusting a seat that
no one has any body parts in the sweep
of the seat. Obser
vethe saf ety no tes on "Airbags" and "Chil‐
dren in theve hicle". &
WARNING Risk of accident due to
adjusting vehicle settings while theve hi‐
cle is in motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R Ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion.
R Ifyo ufast enyour seat belt while theve hi‐
cle is in motion. #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel and the mir ror and fas‐
te nyo ur seat belt. &
WARNING Risk of becoming trapped if
th e seat height is adjus ted carelessly
If yo u adjust the seat height carelessly, you
or other vehicle occupants could be trapped
and thereby injured. Children in particular could acciden
tally
press the electrical seat adjustment buttons
and become trapped. #
While moving the seats, make sure that
hands or other body parts do not get
under the le ver assembly of the seat
adjustment sy stem. &
WARNING Risk of inju rydue tohead
re stra ints not being fitted or being adjus‐
te d incor rectly
If head restra ints ha venot been ins talled or
ha ve not been adjus ted cor rectly, there is an
increased risk of injury in the head and neck
area, e.g. in theev ent of an accident or when
braking. #
Alw ays drive with the head restra ints
fi tted. #
Before driving off, ma kesure forev ery
ve hicle occupant that the cent reofthe
head restra int supports the back of the
head at about eye le vel. 106
Seats and stowing

th
ird row of seats and hold it down until the
re ar seat audibly engages.
The rear seat will tip down wards and mo ve
bac k.The seat backrests and head restra int
will then mo veinto a suitable seat position
automaticall y.
If a seat on the second rowof seats is not
engaged, this will be shown on the multifunc‐
tion display on the instrument clus ter. #
Tointer rupt thefo lding procedure before
engagement, let go of button 1.Tocontinue
th efo lding procedure, press and hold button
1 again.
Fo lding there ar seats forw ards mechanically
(eme rgency release)
Yo u can also fold there ar seats forw ards
mechanically using release loops. The release
loops are located on the outer sides and rear
sides of the seats on the second rowof seats. Re
lease loops on the second row of seats Re
lease loops on there ar sides of the second row
of seats #
Pull one of release loops 1. #
Foldthe seat backrest forw ards. #
Before commencing your journe y,make sure
th at the seat backrest and there ar ben ch
seat are engaged. Head
restra ints Ad
justing the front seat head restra ints man‐
ually &
WARNING Risk of accident due to
adjusting vehicle settings while theve hi‐
cle is in motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R Ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion.
R Ifyo ufast enyour seat belt while theve hi‐
cle is in motion. #
Before starting the engine: adjust the
driver's seat, the head restra ints, the Seats and
stowing 11 5

Seat
ventilation in the cockpit Seat
ventilation in there ar #
Press button 1repeatedly until the desired
ve ntilation le vel is set.
Depending on theve ntilation le vel, up to
th re e indicator lamps will light up. If all indi‐
cator lamps are off, the seat ventilation is
switched off. Ste
ering wheel Ad
justing the steering wheel mechanically &
WARNING Risk of accident due to
adjusting vehicle settings while theve hi‐
cle is in motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R Ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion.
R Ifyo ufast enyour seat belt while theve hi‐
cle is in motion. #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel and the mir ror and fas‐
te nyo ur seat belt. &
WARNING Risk of entrapment forch il‐
dren when adjusting thesteering wheel
Children could injure themselves if they
adjust thesteering wheel. 124
Seats and stowing

#
Press preset position button 4.
Bo th seats mo veinto thestored position.
% You can use there ar-compartment child
saf ety lock todisable this function
(/ page 77). St
ow age areas Note
s on loading theve hicle &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if theta il‐
gate is open when the engine is running,
especially if theve hicle is in motion. #
Alw ays switch off the engine before
opening theta ilgate. #
Never drive with theta ilgate open. &
WARNING Risk of inju ryfrom unsecu red
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r. &
WARNING Risk of inju rydue toobjects
being stowed incor rectly
If objects in theve hicle interior are stowed
incor rectly, they can slide or be thrown
around and hit vehicle occupants. In addi‐
tion, cup holders, open stowage spaces and
mobile phone brac kets cann otalw aysre tain
all objects they contain.
The reis a risk of injur y,particularly in the
ev ent of braking manoeuvres or abrupt
ch anges in direction. #
Alw aysstow objects so that they can‐
not be throw n around in su chsitua‐
tions. #
Alw ays make sure that objects do not
pr otru de from stowage spaces, luggage
nets or stowage nets. 13 2
Seats and stowing

5
L Low beam/high beam
6 R Switches there ar fog lamp on/off
When low beam is activated, theT indicator
lamp forth est anding lights will be deactivated
and replaced bytheL low- beam indicator
lamp. #
Alw ays park your vehicle safely using suf fi‐
cient lighting, in acco rdance with there le‐
va nt le galst ipulations.
* NO
TEBattery discharging byoperating
th est anding lights Operating
thest anding lights over a period of
hours puts a stra in on the batter y. #
Where possible, switch on the
ri ght X or left Wparking light. If
th e battery is insuf ficiently charge d, thest and‐
ing lights or parking lights will be swit ched off
automatically tofacilitate the next engine start. The
exterior lighting (e xcept standing and park‐
ing lights) will swit choff automatically when the
driver's door is opened.
R Obser vethe no tes on sur round lighting
(/ page 163).
Au tomatic driving lights function
The standing lights, low beam and daytime run‐
ning lights are switched on au tomatically
depending on the ignition status and the light
conditions. &
WARNING Risk of accident when the
dipped beam is switched off in poor visi‐
bility
When the light switch is set toà ,the
dipped beam may not be switched on auto‐
matically if there is fog, snow or other causes
of poor visibility such as spr ay. #
In such cases, turn the light switch to
L . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting. Switching
there ar fog lights on or off
Re quirements:
R The light switch is in theL orà posi‐
tion. #
Press the R button.
Please obser vethe count ry-specific la wsonthe
use of rear fog lamps.
% Vehicles with AIRMATIC or E- ACTIVE BODY
CO NTROL with off-road pac kage : when the
re ar fog light is switched on, off-road le vel
+3 will not be available. If there ar fog light is
switched on and off-road le vel +3 is activa‐
te d, theve hicle will be lo weredto off-road
le ve l +2. Light and sight
157

Setting
theex terior lighting switch-off delay
time Re
quirements:
R The light switch is in theà position.
Multimedia sy stem:
4 © 5
Settings 5
Lights
5 Ext. light. del. sw. off #
Set the switch-off delay time.
When theve hicle engine is switched off, the
ex terior lighting will be activated forth e set
time. Switching
the sur round lighting on/off Multimedia sy
stem:
4 © 5
Settings 5
Lights
5 Surround lighting
When Surround lighting is active,theex terior
lighting lights up for 40 seconds af terth eve hicle
is unloc ked. When youstart theve hicle, the sur‐
ro und lighting is deactivated and the automatic
driving lights are activated. Illuminated
running boards: whenthe sur‐
ro und lighting is swit ched on, the illumination of
th eru nning boards is acti vated when a door is
opened. If the door is not closed, theru nning
board cou rtesy lighting is automatically deactiva‐
te d af ter 40 seconds. #
Activate or deacti vate the function. Interior lighting
Ad
justing the in terior lighting Fr
ont overhead control panel 1
p Front left reading lamp
2 | Automatic interior lighting control
3 c Front interior lighting
4 u Rear interior lighting
5 p Front right reading lamp #
Toswitch on/off: press button1–5
accordingly. Light and sight
16 3

#
Foldthe wiper arm from there placement
position back onto there ar wind ow. Mir
rors Operating
the outside mir rors &
WARNING Risk of accident due to
adjusting vehicle settings while theve hi‐
cle is in motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R Ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion.
R Ifyo ufast enyour seat belt while theve hi‐
cle is in motion. #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel and the mir ror and fas‐
te nyo ur seat belt. &
WARNING Risk of accident due tomis‐
judgement of dis tance when using the
outside mir ror
The outside mir rors reflect objects on a
smaller scale. The objects in view are in fact
closer than they appear. #
Therefore, alw ays look over your shoul‐
der in order toensure that you are
aw are of the actual dis tance between
yo u and thero ad users driving behind
yo u. Fo
lding the outside mir rors in/out #
Brief lypress button 2.
% Ifth e battery has been disconnected or has
dischar ged, the outside mir rors must be
mo ved briefly using button 2. Onlythen will
th e automatic mir rorfo lding function work
proper ly. 17 0
Light and sight

%
Mercedes-Maybach vehicles: when the out‐
side mir rors fold in, theex tendable running
boards will retract if they wereprev iously
ex tended.
Ad justing the outside mir rors #
Press button 1or3 toselect the outside
mir rorto be adjus ted. #
Use button 4toadjust the position of the
mir rorgl ass.
Engaging the outside mir rors
If an outside mir ror has been forc ibly disen‐
ga ge d, proceed as follo ws. #
Vehicles without electrically folding outside
mir rors: manually mo vethe outside mir ror
into the cor rect position. #
Vehicles with electrically folding outside mir‐
ro rs: press and hold button 2.
Yo u will hear a click and the mir ror will audi‐
bly click into place. The outside mir ror will
now be set tothe cor rect position. Au
tomatic anti-dazzle mir rors function &
WARNING Risk of acid bu rns and poi‐
soning due tothe anti-dazzle mir ror elec‐
trolyte
Electrolyte may escape if theglass in an
automatic anti-dazzle mir ror breaks.
The electrolyte is hazardous tohealth and
causes ir rita tion. It mu stnot come into con‐
ta ct wi thyour skin, eyes,respiratory or gans
or clo thing or be swallo wed. #
Ifyo u come into contact with electro‐
ly te , obser vethefo llowing:
R Immediately rinse the electrolyte
from your skin with water and seek
medical attention.
R If electrolyte comes into contact
with your eyes, immediately rinse
th em thoroughly with clean water
and seek medical attention.
R Ifth e electrolyte is swallo wed,
immediately rinse your mouth out
th oroughl y.Do not induce vomiting.
Seek medical attention immediately. R
Immedia tely ch ange out of clo thing
which has been con taminated with
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. The inside
rearview mir ror and the outside mir‐
ro r on the driver's side will automatically go into
anti-dazzle mode if light from a headlamp hits
th e sensor on the inside rearview mir ror.
Sy stem limits
The sy stem will not go into anti-dazzle mode if:
R the engine is switched off.
R reve rsege ar is engaged.
R the interior lighting is switched on. Fr
ont-passenger outside mir ror parking posi‐
tion function %
The pa rking position is available on ly invehi‐
cles with a memory function.
The parking position makes parking easier. Light and sight
171