2021 MERCEDES-BENZ GLS SUV AMG Owner's Manual

Oper
ator's Manua l
This Supplement prov ides informatio non allthe
im por tant func tions ofyour AM Gve hicle that are
eit her notdesc ribed ordifferfr om thedescr ip‐
tion sin theve hicle Operator's Manual. This
inf ormation supplements orreplaces thecor re‐
sponding sectionsintheve hicle Operator's Man‐
ual. Under nocircums tances does theSupple‐
ment replace theOper ator's Manual.
This Supplement describesallmodels, and
st andar dand optio nal equipme ntforyo ur vehi‐
cle, asavailable atthetime ofgoing topress.
Countr y-specif icdif fere nces arepo ssi ble. Bea r
in mind that your vehicle mayno tfe atur eall
fun ction sdesc ribed here.This isalso thecase
fo rsy stems andfunc tionsre leva nt tosaf ety.
Ther efor e, theeq uipment onyour vehicle may
dif ferfr om that inthedescr iption sand illustra‐
tion s.
The original purchase contract documen tation
fo ryo ur vehicle contains alis tof all ofthesy s‐
te ms inyour vehicle. Should
youha ve anyqu estion scon cerning
eq uipment andoper ation, please consult an
aut hor ized Mercedes- BenzCenter.
The Oper ator's Manual, theSupplement andthe
Maint enance Bookletar eim por tant docum ents
and should be kept intheve hicle. Oper
ating safety &
WARNIN GRisk ofacci dent dueto mal‐
functions orsystem failur es
To avo idmalfun ctions orsystem failur es: #
Alw aysha ve thepr escr ibed service and
maint enanc ewo rkas wellan yre qu ired
re pair scar ried out ataqu alif ied spe‐
cialis two rkshop. &
WARNIN GRisk ofacci dent orinju rydue
to inc orrect mod ifica tions onelectr onic
com pone ntparts
Modif ication ofelectr oniccomponent s,their
sof twareor wir ing could impair their func tion and/or
thefunc tion ofother networke dcom‐
ponen tpar tsor saf ety-re leva nt systems.
This canendang ertheoper ating safetyof the
ve hicle. #
Neverta mp erwit hth ewir ing and elec‐
tr onic componen tpar tsor their soft‐
wa re. #
Yousho uld have all workon electr ical
and electr oniccomponent scar ried out
at aqu alif ied spec ialistwo rkshop. Obser
vethe"On-boar delectr onics"sect ionin
"T ec hnical data"intheve hicle Operator's Man‐
ual. &
WARNIN GRisk offire due toflammab le
mat erials onhotpar tsof theex haus t
sy stem
Flammable material suc has lea ves, grass or
twigs mayignit eif th ey come intocont act
wi th hotpar tsof theex haus tsy stem. Gener
alno tes 7

#
When driving onunpavedro ads oroff-
ro ad, regular lych eckth eve hicle under‐
side. #
Remo vetrap pe dplants orother flam‐
mable material, inpar ticular . #
Ifth er eis damag e,con sult aqu alif ied
spec ialistwo rkshop immediat ely. *
NO
TEDama getotheve hicle In
thefo llo wing situat ions,in par ticular ,th er e
is arisk ofdamag eto theve hicle:
R The vehicle becomes grounded, e.g.ona
high curb oran unpavedro ad
R The vehicle isdriven toofa st over an
obs tacle ,e.g. acurb ,spe edbump orpot‐
hole
R Ahea vyobject strike sth eunderbody or
ch assis components
In situatio nssuc has this, thebody ,th e
und erbody ,ch assis components,wheels or
tir es coul dbe damag edwithout thedamag e
being visible. Componen tsdamag edinthis wa
ycan unexpec tedly failor ,in thecase of
an acciden t,ma yno tabsorb theloads that
ar ise asintend ed.
If th eunderbody panelingisdamag ed,flam‐
mable materials suchas lea ves, grass or
twigs cancollect between theunderbody and
th eunderbody paneling.Thesematerials may
ignit eif th ey come intocont actwith hot
par tson theex haus tsy stem. #
Have theve hicle checkedand repair ed
immediat elyat aqu alif ied spec ialist
wo rkshop.
or #
Ifdr iving safetyis im pair edwhile con‐
ti nui ng your jour ne y,pull over and stop
th eve hicle immediat elyin accor dance
wit hth etraf fic condi tions,and cont act
a qu alif ied spec ialistwo rkshop. Qualif
iedspecialis two rkshop
An author ized Mercedes-B enzCent erisaqu ali‐
fi ed specialis two rkshop. Ithas theneces sary
special skills,tools and qualif icat ionsto cor‐ re
ctly carryout thewo rkrequ ired on your vehi‐
cle. This particular lyapplies tosaf ety-re leva nt
wo rks.
Fo rth efo llo wing, alwaysha ve your vehicle
ch eckedat an aut hor ized Mercedes- BenzCen‐
te r:
R safety-re leva nt wo rks
R service andmaint enance work
R repair work
R modif ications aswellas installation sand
con versions
R workon electr oniccomponent s
Mer cedes‑A MGrecomme ndsaMercedes‑Be nz
ser vice center. Co
rrect use oftheve hicl e
If yo ure mo veanywa rning sticke rs,yo uor other s
could failto recogni zecer tain dang ers. Lea ve
wa rning sticke rs inposit ion.
Obser vethefo llo wing informatio nin par ticular
when drivin gyo ur vehicle:
R thesaf etyno tesin this manual 8
General notes

R
tech nica lda ta forth eve hicle
R traf fic ru les and regulations
R laws and safetyst andar dsper tainin gto
mo torve hicles Limit
edWa rranty
* NO
TEDama getotheve hicle arising
fr om violation ofthese oper ating instruc‐
tion s. Damag
eto theve hicle canarise from viola‐
tion ofthese oper ating instruction s.
This damag eis no tco veredeit her bythe
Mer cedes-Ben zim plied warrant yor by the
Ne w‑ orUsed- Vehicle Warrant y. #
Followtheins truction sin these oper at‐
ing instruction son proper operation of
yo ur vehicle aswellas on possible vehi‐
cle damag e. Gener
alno tes 9

Dr
ivin g Br
eak ing- inno tes To
preser vetheengine during thefirs t
1, 000 miles(1 ,500 km):
R drive at varying road spee dsand engine
spee ds.
R donotdr ive fa ster than 85 mph(1 40 km/h) .
R allo w theengine toreac hamax imum engine
spee dof 4,5 00 rpm (4,500 rpm) onlybr ief ly.
R drive th eve hicle indrive pr ogr am A.
R chang ege ar bef oreth eta ch ome terneedl eis
00C3 ofthewa yto there dar ea oftheta ch ome‐
te r.
R donotshif tdo wn age ar man uallyin order to
br ak e.
R avoidoverstra inin gth eve hicle, e.g.driving at
full thro ttle .
R donotde pres sth eaccelera torpeda lpas t
th epr essur epoint (kickdo wn).
R onlyincr ease theengine speedgradually and
acceler ateth eve hicle tofull spee daf te r
1, 000 miles(1 ,500 km). This
also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced.
Please alsoobser vethefo llo wing breakin g-in
no tes:
R Incer tain drivin gand drivin gsaf etysy stems,
th esensor sadjus taut omaticall ywhile acer‐
ta in dis tance isbe ing driven afte rth eve hicle
has been delivered orafte rre pair s.Fu llsy s‐
te m effectiv enes sis no tre ac hed untilth e
end ofthis teac h-in proce ss.
R Brak epads ,br ak edisc sand tires that are
eit her newor have been replaced onlyac h‐
ie ve optimum braking effect and grip afte r
se veralhundr edkilom eter sof driving. Com‐
pensat efo rth ere duced braking effect by
appl ying grea terfo rc eto thebr ak epedal. Fu
nction ofEmo tion Start #
Startth eve hicle withth est ar t/ stop butt on
and simult aneousl ypull one ofthesteer ing
wheel gearshif tpaddles 1or2.
R The idlespee dis inc reased brief lywhen
st ar tin gth eengine.
R The exhaus tga sflaps areopen ed(spo rty
ch aract eristic )(/ page11 ).
Obser vetheno teson star tin gth eve hicle inthe
ve hicle Operator's Manual. 10
Driving and parking

Oper
ation oftheECO star t/s topfunc tion The
engineisau tomatical lyswitc hedoffif th e
fo llo wing condition sar eme t:
R ifall vehicle conditions foran automatic
engine stop areme t.
R youbr ak eth eve hicle toast ands tillin trans‐
miss ionposit ion005Bor005C.
R youdepr essthebr ak epedal whendriving at
speeds below15 mp h(20 km/h).
The engine isrestar tedaut omatic allyif:
R youre lease thebr ak epedal intra nsmiss ion
position 005Bwhen theHOLD function isno t
activ e.
R youshif tfr om transm issionposi tion005D.
R youen gage trans missi on positio n005B or005E.
R youdepr esstheaccelera torpeda l.
R youper man ently act ivat eman ualgearshif t‐
ing .
R youpull thelef t-hand steer ing wheel gear‐
shif tpaddle. R
anaut omat iceng inestar tis requ ired bythe
ve hicle.
If th eengine wasswitc hedoffby theEC Ostar t/
st op funct ionand youlea vetheve hicle, awa rn‐
ing tone sou nds and theengine isno tre star ted.
In addition, theVehicle ReadytoDrive Switch
the Ignit ionOffBefor eEx iting messag eappear s
in themultifunc tiondispla y.Ifyo udo notswit ch
of fth eignition ,th eignition isaut omaticall y
switc hedoffaf te rone minut e. AMG
Perfor ma nce exhaus tsy stem Fu
nction oftheAMG Perfor ma nce exhaus t
sy stem
Chang ingtheposition oftheex haus tga sflaps
allo wsyouto select thesound charact eristic sof
th eAMG Perfor mance exhaus tsy stem:
R Closed exhaus tga sflaps: comfort ch aract er‐
is tic (balan ced)
R Open exhaus tga sflaps: sportycharact eristic
(po werful) Ope
ratin gthe AMGPe rfor ma nce exhaus t
sy stem #
Pull rock er switc h1.
The spor tycharact eristic (po werful) issele c‐
te dwhen indicat orlam p2 lights up. Dr
iving andparking 11

DY
NA MIC SELECT switch Fu
nction oftheDY NA MIC SELECT switch Use
theDY NA MIC SELE CTswitc hto chang e
be tween thefo llo wing drive pr ogr ams:
o (Slippery): optim ized pulling away and
dr ivin gch aract eristic sin wint ryand slip‐
per yro ad con dition s
= (Individual):ind ividual setting s
A (Comfort): com fortable andeconomic al
dr ivin gst yle
C (Sport):spor tydrivin gst yle
B (Sport+): particular lyspor tydrivin gst yle
ë (Sand):dr ivin gin less deman dingoff-ro ad
te rrain, optim izedfo rdr iving onsand
F (Tra il): driving inless demand ingoff-r oad
te rrain, optim izedfo rdr iving onunpaved
ro ads and loosegr oun d
Mer cedes-AM Grecomme ndsselecting thedr ive
pr ogr am A when incity traffic or stop-and-go
tr af fic. Depe
nding onthedr ive pr og ram sele cted, the
fo llo wing vehicle charact eristic swill chang e:
R Drive
- Engin eand trans miss ionman agemen t
- ActiveDis tan ceAssi stDIS TRONI C
R AMG Dynamics
- The agility functio nsareau tomatical ly
select eddepending onthedr ive pr og ram.
- The steer ing, shifttimin gpoint andstabi‐
lizat ionfunction sar eadap tedto the
select eddrive pr ogr am.
R Position oftheex haus tga sflaps
R Sus pen sion
R 4MA TIC+ all-wheel drive
% Youcan chang eth efo llo wing vehicle charac‐
te rist ics using thebutt ons inthecent ercon ‐
sole:
R Position oftheex haus tga sflaps
R Sus pen sion Au
tomatic trans mis sion Man
ualgearshif ting #
Toactiv ate/ deacti vate:pu llro ck er switc h
1.
If indicat orlam p2 islit, manual gearshif t‐
ing isact ivat ed. The current gear isdispla yed
in themultifunc tiondispla y. 12
Driving and parking

%
Toper manen tly shif tth ege arsman uallyin
dr ive pr og ram = using thesteer ing wheel
ge arshif tpaddles ,selec tth eM (Manual) set‐
ting forth etra nsmiss ion.
* NO
TEDama getotheengine duetoshif t‐
ing uptoolat e The
automatic transmission doesnotshif tup
in manual modeeven when theengine' slim‐
iting speed isreac hed.
The fuel suppl yis int erru pte din order topre‐
ve nt theengine from overrev ving. #
Shif tup bef oreth eengine speedrea‐
ch es there dar ea intheta ch ome ter. #
Toshif tup: pull steer ing wheel gearshif t
paddle 2. #
Toshif tdo wn: pullsteer ing wheel gearshif t
paddle 1. If
th eengine speedistoohigh ortoolow, you
canno tch ang ege ar usin gth esteer ing wheel
ge arshif tpaddles .In this case, segme nts1
light upred. Gear
shiftre comm endation The
gearshif tre comme ndation assists youin
adop tingan eco nomic aldrivin gst yle. #
Ifge arshif tre comme ndation mess age1
ap pea rson themultifunc tiondispla y,shif tto
th ere comme ndedgear. Using
kickdow n #
Maximum acceleration: depress theaccel‐
er ator pedal beyond thepr essur epoint .
The automatic transmiss ionshiftsup tothene xt
ge ar when themaximum enginespeedis
re ac hed toprotect theengine from overrev ving. Dr
iving andparking 13

%
Ifyo uha ve act ivat ed man ualgearshif ting
wit hth ebutt oninthecent ercon sole, the
tr ans missi on does notre act tothekic k‐
do wn. Glide
mode function Wi
th an ant icip ator ydr ivin gst yle, glide mode
helps youto reduce fuelconsum ption.
Glide mode isch aract erize dby thefo llo wing:
R thecombus tionengine isdiscon nectedfrom
th edr ivet ra in and theve hicle continues to
ro ll.
R thecombus tionengine isswitc hedoff.All of
th eve hicle functionsremain active.
R theJ symbol appearsin themultifunc ‐
tion displa y.
Glide mode isact ivat ed ifth efo llo wing condi‐
tion sar eme t:
R theEC Ostar t/ stop funct ionisswitc hedon.
R drive pr ogr am = isselect edwithth edr ive
se tting "Moder ate" or"Reduced".
R thespeed iswit hin asuit able rang e. R
thero ad's courseissuit able, e.g.no steep
uphill ordownhill inclinesortight bends.
R thech arge leve lof thebatt eryis suf ficie nt.
R youar eno longerdepressing theaccelera tor
or brak epedal.
Glide mode isdeactiv ated again ifone ofthe
condi tions isno long erme t. Dr
ivi ng and drivi ng safetysy stems Fu
nctions ofESP ®
(Electr onicStabil ityPro‐
gr am) &
WARNIN GRisk ofskid ding ifESP ®
is
mal functi oning
If ESP ®
is mal functi oning,ESP ®
canno tcar ry
out vehicle stabiliz ation.Inaddit ion,ot her
dr iving safetysy stems areswitc hedoff. #
Drive on car efull y. #
Have ESP ®
ch eckedat aqu alif ied spe‐
cialis two rkshop. Yo
ucan selectbetween thefo llo wing modes of
ES P®
:
R ESP®
ON
R ESP®
SPO RT
R ESP ®
OFF
Ch arac terist ics when ESP®
is activ ated
ES P®
mon itor sand improv es driving stabilit yand
tr act ion,par ticular lyin thefo llo wing situat ions:
R When pulling away on awe tor slip pe ry road.
R When brakin g.
R Vehicl eswith traile rhitc h:intrail er oper a‐
tion from spee dsof40 mph(65 km/h), ifth e
ve hicle/tr ailercombination beginstosw ay
fr om side toside.
R Instro ng side winds when youar edr ivin g
fa ster than 47 mp h(7 5 km/h).
ESP ®
can stabiliz eth eve hicle byinterve ning in
th efo llo wing ways:
R One ormor ewheels arebr ak ed.
R The engine outputisadap tedaccor dingto
th esituation . 14
Driving and parking