2021 MERCEDES-BENZ CLS lock

The
trunk lidcould beopened orclosed uninten‐
tionall y,in thefo llo wing situat ions:
R Aper son 'sarms orlegs aremo vingin the
sensor detection rang e, e.g .wh en polishi ng
th eve hicle orpic king upobject s.
R Object sar emo vedor placed behind theve hi‐
cle, e.g. tensi oni ng stra ps orlugg age.
R Clam pingstra ps, tarp sor other coverings are
pu lled ove rth ebum per.
R Apr otect ive mat withalengt hre ac hin gove r
th etrunk silldown intoth ede tection rang e
of thesensor sis used.
R The protect ive mat isno tsecur edcor rectl y.
Dea ctivateth eSmar tKey functions (/page65)
or do notcar rytheSmar tKey about your per son
in suc hsit uatio ns. Swit
ching separ atetrunk locking onoroff If
yo ucen trally unlocktheve hicle while separate
loc king isactiv ated, thetrunk willremain locked. #
Toswitc hon: slide theswitc hto position
0047. #
Toswitc hof f:slide theswitc hto position
0048.
% Ifan acciden thas been detected, thetrunk
will unloc keve nif sep aratelock ing is
switc hedon. Un
loc king andopening thetrunk from insid e
wit hth eemer gency release Re
quirement s:
R The 12Vve hicle batteryis conn ectedand
ch arge d. #
Press emer gency release button1 brief ly. 76
Opening andclosing

Side
windo ws Opening
andclosing theside windo ws &
WARNIN GRisk ofentr apment when
ope ning asid ewi ndo w
Whe nope ning asid ewi ndo w,par tsof the
body could bedraw nin or become trap pe d
be twee nth eside windo wand windo wframe. #
When opening ,mak esur eth at nobody
is touc hin gth eside windo w. #
Ifsomeone istrappe d,release thebut‐
to nimm ediate ly or pullit in order to
clos eth eside windo wag ain. &
WARNIN GRisk ofbeco ming trap ped
whe nclos ingasid ewi ndo w
Whe nclos ingasid ewi ndo w,body parts
could betrapped intheclosing area inthe
pr ocess. #
When closing,mak esur eth at no body
par tsarein theclosing area. #
Ifsomeon eis tra pped, release thebut‐
to nimm ediate ly or pres sth ebutt onin
or der toreopen theside windo w. &
WARNIN GRisk ofbeco ming trap ped
whe nch ildr enopera tetheside windo ws
Childr encould become trapped ifth ey oper‐
at eth eside windo ws,par ticular lywhen unat‐
te nde d. #
Activateth ech ild safetyloc kfo rth e
re ar passe nger com partment side win‐
do ws . #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. Re
quirement s:
R The powe rsupp lyor theignition isswitc hed
on. 1
Toclos e
2 Toopen
The buttons onthedr iver's door take prece‐
denc e. #
Tostar taut omatic operation :pr ess the
0062 buttonbeyond thepoint ofresis tance
or pulland release it. Open
ingand closing 77

Con
venience closing (closing theve hicl e
fr om outside ) &
WARNIN GRisk ofentr apment dueto not
pa ying attenti onduring con venie nce
clo sing
Whe nth econ venie nce closing featur eis
oper ating,par tsof thebody could become
tr apped intheclosing area oftheside win‐
do wand thesliding sunroof. #
When thecon venie nce closing featur e
is operatin g,mon itor theent ire closing
pr ocess andmakesur eth at no body
par tsarein theclosing area. #
Press and hold theß buttononthe
Smar tKey .
The follo wing functionsar eper form ed:
R The vehicle isloc ked.
R The side windo wsareclo sed.
R The slidin gsun roof isclosed. #
Tointerru pt con venience closing: release
th eß button. %
Con venie nce closing also func tions with
KEYLESS- GO(/ page68). Pr
oble mswith theside windo ws &
WARNIN GRisk ofbeco ming trap ped or
fa ta lly injured ifre ve rsing protect ion is
no tactiv ated
If yo uclo seaside windowagain imm ediat ely
af te rit has been blocked, theside windo w
will close withincr eased ormaximum forc e.
The reve rsing func tion isthen notactiv eand
body partsma ybecome trapped. #
Mak esur eth at no par tsof thebody are
in theclosing area. #
Tostop theclosing process, release the
butt onorpress thebutt onagain to
re open theside windo w. A
sid ewind owcann otbe closed andyoucan‐
no tsee thecaus e. #
Chec kto see whether anyobjec tsarein the
windo wguide. #
Adjus tth eside windo ws.
Ad jus tingthe side windo ws
If aside windo wisobs truct eddur ing closing and
re opens again immediat ely: #
Immediat elyaf te rth is, pull and hold thecor‐
re sponding buttonagain until theside win‐
do whas closed andhold thebutt onforat
lea stone moresecond (re-adjus tment).
The side windo wwill beclosed without the
aut omat icreve rsing func tion.
If th eside windo wisobs truct edagain and
re opens again immediat ely: #
Immediat elyaf te rth is, pull and hold thecor‐
re sponding buttonagain until theside win‐
do whas closed andhold thebutt onforat
lea stone moresecond (follo w-up adjust‐
men t).
The side windowwill beclos edwithout the
aut omat icreve rsing func tion. Open
ingand closing 79

The
side windo wscann otbe opened or
closed usingthecon venience opening fea‐
tur e.
Po ssible cause:
R The Smar tKey batt eryis we ak ordisc harged. #
Chec kth ebatt eryusing theindicat orlam p
(/ page64 ). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page66). Slidin
gsunr oof Opening
andclosing theslidi ngsunr oof &
WARNIN GRisk ofbeco ming trap ped
whe nth esliding sunroofisbeing opened
and closed
Body partsma ybecome trapped inthera ng e
of mo vement. #
Dur ing opening andclosing, makesur e
th at no body partsarein thera ng eof
mo vement. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing automatic operation.
The opening orclosing process willbe
st opped. &
WARNIN GRisk ofbeco ming trap ped if
th esliding sunroofisoper ated bychil‐
dr en
Childr enoper atingth esliding sunroofcould
get caught inthemo ving parts,par ticular lyif
unatt ended. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eke ywit hyo uand lockth eve hicle. *
NO
TEMalfunctio ndu eto sno wand ice Sno
wand icemaycause thesliding sunroof
to malfu nction. #
Open thesliding sunroofonlyif it is free
of sno wand ice. *
NO
TEDama gecau sed byprotru ding
objec ts Objec
tsthat protru de from thesliding sun‐
ro of ma ydamag eth esealing strips. #
Donotallo wan ything toprotru de from
th esliding sunroof. *
NO
TEImpo rtant poin tsto remember
when aro of lugg agera ck isins talled When
aro of lugg agera ck isins talled, raising
or open ingthesliding sunroofmaybe limi‐
te d. #
Chec kwhe ther thesliding sunroofcan
be raised oropen edwhen aro of lug‐
ga ge rack isins talled. #
Ifin doubt, donotra ise oropen the
sliding sunroof. 80
Opening andclosing

Pr
oblems withtheslidi ngsunr oof &
WARNIN GRisk ofbeco ming trap ped or
fa tal injuries when thesliding sunroofis
closed again
If th esliding sunroofisclosed again immedi‐
at ely afte rit has been blockedor rese t,itwill
close withincr eased forc e. #
Mak esur eth at no par tsof thebody are
in theclosing area. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing theaut omatic closing process.
The closing process willbestopped. The
sliding sunroofcanno tbe closed andyou
cann otsee thecaus e.
If th esliding sunroofisobs truct eddur ing closing
and reopens again slightl y: #
Immediat elyaf te rau tomatic reve rsing, pull
and hold the0057 buttondown again tothe point
ofresis tance untilth esliding sunroofis
closed.
The sliding sunroofwill beclosed with
incr eased forc e.
If th esliding sunroofisobs truct edagain and
re opens again slightl y: #
Repeat thepr ev ious step.
The sliding sunroofwill beclosed again with
incr eased forc e.
Ve hicl eswithout apanor amaroof wit h
po we rtil t/s lidin gpane l:The slidi ng sun roof
is no toper ating smoo thly. #
Resetth esliding sunroof.
Re setting theslidi ngsunr oof #
Push the0057 buttonuptothepoint of
re sis tance repeat edlyuntil thesliding sun‐
ro of isfully open. #
Press the0057 buttonforano ther secon d. #
Close thesliding sunroof. Ro
ller sun blinds Ext
ending orretracti ngthe rear-wi ndo w
ro ller sunblind &
WARNIN GRisk ofbeco ming trap ped
whe nex tendi ng orretracti ngthero ller
sunblin d
Body partsma ybecom etrapped inthero ller
sunblin d'srang eof mo vement. #
Ensur eth er ear eno body partsinthe
ra ng eof mo vement. #
Ifsomeone becomestrapp ed,brief ly
pr ess thebutt onagain.
The opening orclosing process will
br ief lybe stopped. Theroller sunblin d
will then retur nto its star tin gposit ion. *
NO
TEDama gecau sed byobject s Object
sma ycause thero ller sunblin dto mal‐
function. #
Donotst or ean yobject son thepar cel
shelf. 82
Openin gand closing

#
Mak esur eth at thero ller sunblin dcan
mo vefreely . #
Toextend orretract: press button 1. An
ti-thef tpr otection Fu
nction oftheimm obiliz er The
immo bilizerpreve nts your vehicle from being
st ar tedwit hout thecor rect Smar tKey .
The immobilizer isaut omaticall yactiv ated when
th eignition isswitc hedoffand deactiv ated when
th eignition isswitc hedon.
When leaving theve hicle, alwaysta ke theSmar t‐
Ke ywit hyo uand lockth eve hicle. Anyone can
st ar tth eengine ifava lid Smar tKey has been left
inside theve hicle.
% Intheeve nttheengine cannotbe star ted
(y et theve hicle ’sbatt eryis ch arge d), the
sy stem isno toper ational. Contactan
aut hor ized Mercedes- BenzCenteror call
1-8 00-FOR-MER Cedes (intheUS A)or
1-8 00-387-0 100(in Canada). ATA
(anti-thef tala rm system) Fu
nction oftheATA system
If th eATA system isarmed, avisual andaudible
alar mistrigg ered inthefo llo wing situat ions:
R When adoor isopen ed
R When thetrunk lidisopened
R When thehood isopened
R When theint erior motion sensor istrigg ered
(/ page85)
R When theto w- aw ay alar mistrigg ered
(/ page84 )
The ATAsy stem isarmed automatic allyafte r
appr oximat elyte nseco ndsinthefo llo wing situa‐
tion s:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO Opening
andclosing 83

Seats
Ad
jus tingthe fron tse at mec hanicall yand
el ec tric all y &
WARNIN GRisk ofbeco ming trap ped if
th eseats areadjus tedby childr en
Childr encould becom etrapped ifth ey adjus t
th eseats, particular lywhen unattended. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. Yo
ucan adjustth eseats when theignition is
switc hedoff. &
WARNIN GRisk ofbeco ming trap ped
whe nad jus ting theseat
When youadj usta seat ,yo uor other vehicle
occupants couldbecome trapped, e.g.onthe
seat guide rail. #
When adjustingaseat, makesur eth at
no onehas anypar tof their body within
th esw eep oftheseat. Obser
vethesaf etyno teson "Airbags" and"Chil‐
dr en intheve hicle". &
WARNIN GRisk ofacci dent dueto the
dr iver's seat notbeing engaged
The driver's seat maymo veune xpectedl y
while drivin g.
This could caus eyo uto lose control of the
ve hicle. #
Alw aysmak esur eth at thedr iver's seat
is eng aged bef orest ar tin gth eve hicle. &
WARNIN GRisk ofbeco ming trap ped if
th eseat height isadjus tedcar elessl y
If yo uadj ustth eseat height carelessly ,yo u
or other vehicle occupants couldbetrapped
and ther eb yinjur ed. Childr
eninpar ticular couldacciden tally
pr ess theelectr icalseat adjus tmentbutt ons
and become trapped. #
While moving theseats, makesur eth at
han dsorother body partsdo notget
und ertheleve rasse mbly oftheseat
adjus tmentsy stem. &
WARNIN GRisk ofinju rydue tohead
re stra int sno tbeing installed orbeing
adjus tedincor rectl y
If hea dre stra int sha ve notbe en installed or
ha ve notbe en adjus tedcor rectly ,th er eis an
incr eased risk ofinjur yin thehead andneck
ar ea, e.g. intheev ent ofan acciden tor when
br aking. #
Alw aysdr ive wit hth ehead restra int s
ins talled. #
Beforedr ivin gof f,mak esur efo rev ery
ve hicle occupant that thecent erofthe
head restra int suppor tsthebac kof the
head atabout eyeleve l. 88
Seatsand stow ing

#
Press butt on1 repeat edly until thedesir ed
blo werse tting hasbeen reac hed.
De pen dingon theblo werse tting, uptothre e
indic ator lam pswill light up.Ifall indic ator
lam psareof f,th eseat ventil ation issw itched
of f. Ste
ering wheel Ad
jus tingthe steer ing wheel mechanicall y &
WARNIN GRisk ofacci dent dueto
adjus tingve hicle settin gswhile theve hi‐
cle isin mo tion
Yo uco uld lose contro lof theve hicle inthe
fo llo wing situat ionsinpar ticular :
R Ifyo uadj ustth edr iver's seat, thehead
re stra int s,thesteer ing wheel orthemir‐
ro rwhi letheve hicle isin mo tion.
R Ifyo ufa sten your seat beltwhile theve hi‐
cle isin mo tion. #
Beforest ar tin gth eengine: adjustth e
dr iver's seat, thehead restra int s,the
st eer ing wheel andthemir rorand fas‐
te nyo ur seat belt. &
WARNIN GRisk ofentr apment forch il‐
dr en when adjustingth esteer ing wheel
Childr encould injureth emselv esifth ey
adjus tth esteer ing wheel. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Tounlo ck:pu sh release leve r1 down as
fa ras itwil lgo. 96
Seats andstow ing