wheel MERCEDES-BENZ GLS SUV 2020 Owner's Manual

&
WARNING Risk of becoming trapped if
ch ildren activate the easy entry andexit
fe ature‑
Children could become trapped if they acti‐
va te the easy entry ‑ andexitfeature, particu‐
lar lywhen unat tended. #
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. If
th e easy entry andexitfeature is active, the
st eering wheel will mo veupwards and the driv‐
er's seat will mo veback in thefo llowing situa‐
tions:
R You swit chthe ignition off with the driver's
door open.
R You open the driver's door with the ignition
switched off.
% The steering wheel will then mo veupwards
on ly if it is not already as high as it will go.
The driver's seat will then mo vebackwards only if it is not already in
there armost posi‐
tion.
The driver's seat backrest will then mo vefor‐
wa rds only if it is not already in the front‐
most position.
The steering wheel and the driver's seat will
mo veback tothe last drive position in thefo l‐
lowing cases:
R You swit chthe po wer supp lyor the ignition
on when the driver's door is closed
R You close the driver's door with the ignition
switched on.
The last drive position will be sa ved when:
R You swit chthe ignition off.
R You sa vethe seat settings via the memory
function.
If yo u press one of the memory function memory
position switches, the adjustment process will
be stopped. Memory function
Fu
nction of the memory function &
WARNING Risk of an accident if the
memory function is used while driving
If yo u use the memory function on the driv‐
er's side while driving, you could lose cont rol
of theve hicle as a result of the adjustments
being made. #
Only use the memory function on the
driver's side when theve hicle is station‐
ar y. &
WARNING Risk of entrapment when set‐
ting the seat with the memory function
When the memory function adjusts the seat,
yo u and other vehicle occupants – particu‐
lar lych ildren – could become trapped. #
During the adjustment process of the
memory function, make sure that no
one has any body parts in the sweep of
th e seat. Seats and
stowing 127

The function is active under
thefo llowing condi‐
tions:
R Atspeeds below 40 km/h when the turn sig‐
nal light is switched on or thesteering wheel
is turned
R Atspeeds between 40 km/h and 70 km/h
when thesteering wheel is turned
Ro undabout and junction function: the cor‐
nering light will be activated on bo thsides based
on an evaluation of theve hicle's cur rent GPS
position. It will remain active until af terth eve hi‐
cle has left thero undabout or the junction.
Mo torw ay mode function
Mo torw ay mode increases thera nge and bright‐
ness of the cone of light, enabling better visibil‐
ity. The function will be active if a mo
torw ay jou rney
is de tected bymeans of:
R theve hicle's speed
R the multifunction camera
R the GPS
The function will not be active at speeds below
80 km/h.
Enhanced fog light function
The enhanced fog light function reduces self-
dazzling and impr ovesth e illumination of the
edge of the car riag ewa y. The function is automatically activated under
the
fo llowing conditions:
R Atspeeds below 70 km/h and when there ar
fo g light is switched on.
The function is automatically deactivated under
th efo llowing conditions:
R Atspeeds abo ve100 km/h af ter activation.
R When there ar fog light is switched off.
% You can activate the enhanced fog light func‐
tion up toa speed of 100 km/h byswitching
on there ar fog light. 16 0
Light and sight

#
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

In
thefo llowing situations, the front-passen ger
outside mir ror will swivel down wards in the
direction of there ar wheel on the front passeng‐
er's side:
R the parking position is stored (/ page172)
R The fron t-passenger mi rror is selected
R Reversege ar is engaged.
The front-passenger outside mir ror will mo ve
back toits original position in thefo llowing sit‐
uations:
R You shift the transmission toano ther trans‐
mission position
R You are tr avelling at speeds greater than
15 km/h
R You press the button forth e outside mir ror
on the driver's side St
oring and calling up the pa rking position of
th e front-passenger outside mir ror Sto
ring #
Select the front-passen ger outside mir ror
using but ton1. #
Engage reve rsege ar. #
Movethe front-passen ger outside mir ror into
th e desired parking position using button 2.Calling up #
Select the front-passen ger outside mir ror
using but ton1. #
Engage reve rsege ar.
The front-passenger outside mir ror will mo ve
to thestored parking position. Ac
tivating/deactivating the automatic mir ror
fo lding function Multimedia sy
stem:
4 © 5
Settings 5
Vehicle #
Switch Automatic fold-in on or off.17 2
Light and sight

St
ationary heater/ventilation St
ationary heater/ventilation function
R The air inside theve hicle is heated or ventila‐
te dto the set temp erature.
R The air inside theve hicle cannot be cooled
down to temperatures below the outside
te mp erature.
R Ifth e outside temp erature changes, ventila‐
tion mode au tomatical lyswitches toheating
mode or heating mode automatically
switches toventilation mode.
The stationary heater and theex haust gas outlet
are situated behind theright-hand front wheel.
Switching thest ationary heater/ventilation
on/off via the operating unit &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case in enclosed spaces or if
th eve hicle gets stuck in sn ow,fo rex ample. #
Alw ays switch thest ationary heater off
in enclosed spaces without an air
ex traction sy stems, e.g. in garage s. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. #
Open a window on the windward side of
th eve hicle toensure an adequate sup‐
ply of fresh air. &
WARNING Risk offire due tohot station‐
ary heater components and exhaust
ga ses
Flammable materials such as lea ves, grass or
twigs may ignite. #
When thest ationary heater is swit ched
on, make sure that:
R hot vehicle parts do not come into
contact with flammable materials.
R theex haust gas can flow out of the
st ationary heater exhaust pipe
unhindered. R
theex haust gas does not come into
contact with flammable materials. *
NO
TEBattery discharge caused bysta‐
tionary heater or stationary ventilation
operation Ope
rating thest ationary heater or stationary
ve ntilation drains the batter y. #
After heating or ventilating theve hicle
twice, drive for a longer period of time. Re
quirements:
R The fuel tank is su fficiently full.
% Please no tethat if theta nk fill le vel is too
lo w, it can result in function restrictions dur‐
ing auxilia ryheating operation. #
Set the desired temp erature using thew
button. #
Press the& button.
The red or blue indicator lamp on the&
button will light up or go out. 18 0
Climate cont rol

Driving
Note
s on Mercedes-AMG vehicles Obser
vethe no tes on thefo llowing topics in the
Supplement, otherwise you may failto recognise
dangers.
% The availability of cer tain functions depends
on the equipment and model of theve hicle.
R Emotion Start
R AMG Performance exhaust sy stem
R AMG ceramic high-per form ance composite
brake sy stem
R AMG ACTIVE RIDE CONTROL
R AMG steering-wheel buttons Switching on
the po wer supp lyor ignition &
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. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of reach of
ch ildren. Re
quirements:
R theke y is in theve hicle and is recognised.
R the brake pedal is not depressed. Driving and parking
187

This also applies when
the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing running-in
no tes:
R in cer tain driving and driving saf ety sy stems,
th e sensors adjust automatically while a cer‐
ta in dis tance is being driven af terth eve hicle
has been delivered or af terre pairs. Full sys‐
te m ef fectiveness is not reached until the
end of this teach-in process.
R brakepads, brake discs and tyres that are
either new or ha vebeen replaced only ach‐
ie ve optimum braking ef fect and grip af ter
se veral hundred kilom etre s of driving. Com‐
pensate forth ere duced braking ef fect by
applying greater forc eto the brake pedal. Note
s on optimised acceleration If all necessary
requirements and activation con‐
ditions are fulfilled, the best possible accelera‐
tion can be achie ved from a standstill.
Do not use the optimised acceleration on public
ro ads. Individual wheels could spin and youcould lose control of
theve hicle. There is an
increased risk of skidding and/or accident.
Be sure toobser vethe saf ety no tes and informa‐
tion on ESP ®
(/ page 227). Moving
away with optimised acceleration &
WARNING Risk of skidding and having
an accident from wheels spinning
When you use optimised acceleration, indi‐
vidual wheels could spin and you could lose
cont rol of theve hicle.
If ESP ®
is deactivated, there is a risk of skid‐
ding and accident! #
Make sure that no persons or obstacles
are in the close vicinity of your vehicle. Re
quirements:
R theve hicle is run in (/ page 190).
R theve hicle and tyres are in good condition.
R you are on a high-g rip ro adw ay.
R the engine and transmission are at normal
operating temp erature. *
NO
TEIncreased wear due tooptimised
acceleration When pulling
away with optimised accelera‐
tion, all components of the driv etra in are
subjected toave ry high load.
This can lead toinc reased component wear. #
Do not alw ays pull away with optimised
acceleration. #
Engage theh drive position (/ page 206). #
Movethesteering wheel tothest ra ight-
ahead position. #
Select the sportiest available drive program
B orC(/ page 203). #
Deactivating ESP ®
(/ page 229). #
Depress and hold the brake pedal firm ly wi th
yo ur left foot. #
With your right foot , fully depress the accel‐
erator pedal. Driving and parking
191

&
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. #
Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case when theve hicle
becomes stuck in sn ow,fo rex ample. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. #
Open a window on the side of theve hi‐
cle facing away from the wind toensure
an adequate supply of fresh air. &
WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il. #
Never use the brake pedal as a foot re st. #
Do not depress the brake pedal and the
accelerator pedal at the same time
while driving. *
NO
TEEngine dama gedue toexcessively
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. *
NO
TECausing wearto the brake linings
by permanently depressing the brake
pedal #
Do not permanently depress the brake
pedal while driving. #
Touse braking ef fect of the engine,
shift toa lo werge ar in good time. *
NO
TEDama getothe driv etra in and
engine when pulling away #
Do not warm upthe engine while the
ve hicle is stationar y.Pull away immedi‐
atel y. #
Avoid high engine speeds and driving at
full thro ttle until the engine has reached
its operating temp erature. *
NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel The engine is not
running smo othly and is
misfiring. Driving and parking
19 3

Non-combus
ted fuel may get into the cata‐
lytic con verter. #
Only depress the accelera tor pedal
slightl y. #
Have the cause rectified immediately at
a qu alified specialist workshop. Note
s on driving on salt-treated roads
The braking ef fect is limited on salt-trea ted
ro ads.
Therefore, obse rveth efo llowing no tes:
R due tosalt build-up on the brake disks and
brakepads, the braking dis tance can increase
considerab lyor result in braking only on one
side
R maintain a much greater safe dis tance tothe
ve hicle in front
To remo vesalt build-up:
R brake occasionally while paying attention to
th e tra ffic conditions
R carefully depress the brake pedal at the end
of the journey and when starting the next
journey Note
s on aquaplaning
Aq uaplaning can take place once a cer tain
amount of water has accumulated on thero ad
sur face.
Obser vethefo llowing no tes during heavy precip‐
itation or in conditions in which aquaplaning may
occur:
R reduce speed
R avoid tyre ruts
R avoid sudden steering mo vements
R brake carefully
% Also obser vethe no tes on regular lych ecking
wheels and tyres (/ page 393).
Note s on driving through water on the road
sur face
Wa ter which has entered into theve hicle can
damage the engine, electrics and transmission.
Wa ter can also enter the air intake of the engine
and cause engine damage. Obser
vethefo llowing if you must drive thro ugh
wate r:
R Obser vethe maximum permissible ford ing
dep th (/ page 428).
R Drive at a maximum speed of 10km/h;
wa ter can otherwise enter theve hicle interior
or engine compartment.
R Vehicles tr avelling in front, or oncoming vehi‐
cles, can create waves which may exceed the
maximum permissible dep thofthewa ter.
The braking ef fect of the brakes is reduced af ter
fo rd ing. Brake carefully while paying attention to
th e traf fic conditions until braking po wer has
been fully restored. Note
s on off-road driving &
WARNING Risk of accident if you do not
ke ep toline of fall on inclines
If yo u drive at an angle or turn on an incline,
th eve hicle could slip side ways, tip and roll‐
ove r. 194
Driving and pa rking

#
Alw ays drive on inclines in the line of
fa ll (straight up or down) and do not
turn. &
WARNING Risk offire due toflammable
materials on hot parts of theex haust
sy stem
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. #
When driving on unpa vedro ads or off-
ro ad, regular lych eck theve hicle under‐
side. #
Remo vetrapped plants or other flam‐
mable material, in particular. #
Ifth ere is damage, consult a qualified
specialist workshop immediately. When driving off-road, sand, mud and
water or
wate r mixed with oil may getinto the brakes.
This may lead toare duction in braking ef fect or
tot al brake failure as a result of increased wear.
The braking characteristics will vary depending
on the material that has entered the sy stem. Clean
the brakes af ter driving off-road. If you
th en notice reduced braking ef fect or hear
scraping noises, ha vethe brake sy stem checked
at a qualified specialist workshop. Adapt your
driving style to thech anged braking characteris‐
tics.
* NO
TEDama gecaused bydriving over
obs tacles The
vehicle can be damaged by:
R driving up onto high kerbs or unpa ved
ro ads.
R quickly driving over obs tacles su chas
ke rbs, speed bumps or po tholes.
R heavy objects hitting the underbody or
ch assis components. #
Do not drive over obs tacles that could
damage theve hicle. #
Check theve hicle regular lyfor dama ge
during off-road driving. #
Adjust theve hicle speed tosuit the
ro ad sur face conditions. #
Ifth ere is damage, consult a qualified
specialist workshop immediately. +
ENVIRONMENTAL
NOTEEnvironmental
dama gedue tonon-obser vance of pro‐
hibition signs Environmental pr
otection has priority. Treat
nature with respect. #
Be sure toobser veprohibition signs. Checklist before driving off-road
Check
thefo llowing points before driving off-
ro ad:
R Fuel le vel
R Vehicles with a diesel engine: AdBlue ®
le vel
R Engine oil le vel:fill engine oil tothe maxi‐
mum le velto ensure full gradeability
(/ page 360).
R Tyre-change tool kit and spare wheel
R Tyres and wheels Driving and parking
19 5