MERCEDES-BENZ CLS 2022 Repair Manual

R
Oper ateve hicle equipme ntand become
tr apped, forex am ple. #
Alwaysactiv ateth einst alled child safety
loc ksifch ildr enaretrav eling intheve hi-
cle. #
Neverlea vechildr enunatt ended inthe
ve hicle. #
When leavingth eve hicle, alwaysta ke the
Sma rtKe ywit hyo uand lockth eve hicle. Ther
ear ech ild safetyloc ksforth ere ar door sand
th ere ar side windows.
The child safetyloc kon there ar door ssecur es
eac hdoor separ ately. The doorscan nolong erbe
open edfrom theinside. #
Press theleve rin dir ection 1(activ ate) or 2
(deactiv ate). #
Mak esur eth at thech ild safetyloc ksarewo rk-
ing proper ly. A A
ctiv ctiv
atin gand deactiv atin
gand deactiv atingt atin
gthe c he
child safe hild
safety loc k ty
loc k
f f
or t or
the r he
rear side windo ws ear
side windo ws #
T T
o activ o
activ at at
e/deactiv e/deactiv
at at
e: e:
press button2.
The rear side windowcan beopen edorclosed
in thefo llo wing cases :
R Indicat orlam p1 islit: via theswitc hon
th edr iver's door Occupant
safety
59 59

R
Indi catorlam p1 iso.: viatheswitc hon
th ecor respond ingrear door ordriver's
door NNo o
t t
es on pe es
on pets int ts
inthe v he
vehicle ehicle
&
W W
AR NIN G AR
NIN GRisk ofacciden tand injurydue
to anim alsleT unse curedorunat tended in
th eve hicle
If yo ulea veanim alsintheve hicle unattended
or unse cured, they could possibl ypr ess but-
to ns orswitches .
An anim alma y:
R Activateve hicle equipme ntand become
tr apped, forex am ple
R Switchsy stems onoro. and endanger
ot her roadus ers
Uns ecured animalsmaybe thro wn aroun din
th eve hicle intheev ent ofan accident orsud-
den steer ing and braking maneuv ersand
injur eve hicle occupan tsinthepr ocess. #
Neverlea veanim alsintheve hicle unat-
te nded . #
Alwayscor rectl ysecur eanimals while
dr ivi ng ,e.g .using asuit able animal car-
ri er . 6060
Occupant
safety

Sma
r Sma
rtK ey tK
ey OvOv
er er
vie vie
wof Smar w
of Smar tKe tK
ey fun ctions y
fun ctions &
W W
ARNIN G ARNIN
GRisk ofaccident andinjurydue
to childr enleT unatt ended intheve hicle
If ch ildr enareleT unsuper visedintheve hicle,
th ey could, inpar ticul ar:
R open doors,ther eb yendang ering other
per sons orroad user s.
R getout and bestruckby oncoming tra1c.
R oper ateve hicle equipme ntand become
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion ,fo rex am ple by:
R releasing thepar king brak e.
R chang ingthetransmission position.
R star ting theve hicle. #
Neverlea vechildr enunatt ended inthe
ve hicle. #
When leavingth eve hicle, alwaysta ke the
Sma rtKe ywit hyo uand lockth eve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. *
N NO O
TE TE
Damag eto theSmar tKey caused by
magne tic/elds #
Keep theSmar tKey awa yfrom strong
ma gne tic /eld s. Ve
hicle SmartKey wit hpani calar m
1 Locks
2 Indicatorlam p 3
Unloc ks
4 Opens/clo sesthetrunk lid
5 Panic alarm
% Ifind icat orlam p2 does notlig ht up aTer
pr essin gth eÜ orß button,thebatt ery
is we ak orpossibl ydisc harged. Re place the
batt eryas soon aspossible.
Re place theSmar tKey batt ery(/ page63).
The Smar tKey loc ksand unlocks thefo llo wing
com ponents:
R Door s
R Fuel/ller 0ap
R Trunk lid
If th eve hicle isno topen edwithin appr oximat ely
40 seconds aTerunloc king,itloc ksagain. Anti-
th eT protection isactiv ated again.
Do notke ep theSmar tKey toget her withelec-
tr oni cde vice sor me talobjects. Thiscana.ec t
th eSmar tKey 's functionality . Opening
andclosing
61 61

AA
ctiv ctiv
atin g/deactiv atin
g/deactiv atingt atin
gthe acous he
acous ticloc tic
locking king
v v
er er
i/- i/-
cation cation
signal sign
al Mul
timed iasystem:
4 © 5
Settings 5
Vehi cle #
Activateor deac tivateAco ustic Lock. ArAr
ming/dis ar ming/dis
arming t ming
the panic alarm he
pani calar m RR
eq eq
uir uir
emen ts: emen
ts:
R The vehicle isswitc hedo.. #
T T
o activ o
activ at at
e: e:
press button1 forappr oximat ely
one second.
A visual andaudible alarmistrigg ered. #
T T
o deactiv o
deactiv at at
e: e:
brie0y press button1 again.
or #
Press thestar t/s topbutt on.
A Smar tKey belongin gto theve hicle mustbe
de tected intheve hicle. Chang
ingt Chang
ingthe unloc he
unlocking se king
setting s tti
ng s Po
ssible unlocking funct ionsof theSmar tKey :
R Centr alunloc king
R Unloc kingthedr iver's door andfuel/ller 0ap #
T T
o switc o
switc hbe h
be tw tw
een se een
setting s: tting
s:press theÜ
and ß buttons simult aneousl yfo rappr ox-
imat elysix seconds untiltheindicat orlam p
0ash estwice.
Op tions ifth eunloc kingfunction forth edr iver's
door andfuel/ller 0aphasbeen select ed:
R T T
o unloc o
unloc kt k
the v he
vehicle centr ehicle
centrally all
y: :
pr ess the
Ü buttontwice.
R V V
ehicles wit ehicles
withKEYLES S-GO: h
KEYLES S-GO:ifyo uto uc hth e
inner surface ofthedoor handle onthedr iv-
er's door ,onl yth edr iver's door andthefuel
/ller 0apareunloc ked. DeactivDeactiv
atingt ating
the fun ction oft he
fun ction ofthe Smar he
Smar tKey tK
ey VV
ehicles wit ehicles
withKEYLESS -GO: h
KEYLESS -GO:ifyo udeactiv ateth e
func tionof theSmar tKey ,th eKEYLESS -GOfunc-
tions arealso deactiv ated. Access ordrive aut hor -
izat ion byKEY LESS-G Oisthen no long erpossible
wit hth at par ticu larSmar tKey .Ac tivateth efunc-
tion oftheSmar tKey so that all its funct ionswill
ag ain beavailabl e.
Yo ucan also deactiv ateth efunction oftheSmar t-
Ke yto reduce theener gyconsum ption ofthe
Sma rtKe yif yo udo notuse theve hicle oraSmar t-
Ke yfo ran extended period oftime . #
T T
o dea ctiv o
dea ctivat at
e: e:
press theß buttononthe
Sma rtKe ytwi ce inqu ick succes sion.
The Smar tKey indicat orlam p0as hes twice
br ie0y andlights uponce. #
T T
o activ o
activ at at
e: e:
press anybutt onontheSmar tKey .
% When theve hicle isstar tedwit hth eSmar tKey
in themar kedspace ofthecent erconsole,
th efunction oftheSmar tKey isaut omatically
activ ated (/ page136). 6262
Opening
andclosing

RR
emo emo
ving/ inser ving/
insertingt ting
the emer g he
emer gency key ency
key RR
emo emo
ving t ving
the emer g he
emer gency key ency
key #
Press release button1.
Emer gency key2 ispushe dout slightly. #
Pull outeme rgency key2 untiliten gage sin
th eint ermediat eposition. #
Press release button1 again and fully
re mo veemer gency key2.
Inse r Inse
rtin gt tin
gthe emer g he
emer gen cy key ency
key #
Press release button1. #
Inser temer gency key2 totheint ermediat e
position orfull yuntil iteng ages. %
Youcan usetheint ermediat eposition of
emer gency key2 toatt achth eSmar tKey to
a ke yring. RR
epla cing t epla
cing the Smar he
Smar tKe tK
ey bat t y
bat ter y er
y &
D D
AN AN
GER GER
Riskoffata linjur iesdue tosw al-
lo wing batteries
Bat teries cont aintoxicand corrosiv esubs tan-
ces .Sw allow ing batt eries maycause severe
int ernal burnstooccur within twohour s.
Ther eis arisk offata linjur y. #
Keep batt eries out ofthere ac hof chil-
dr en. #
Ifth ecap and/or thebatt erycom part-
ment doesnotclose securely, do notuse
th eSmar tKey anylon gerand keep out of
th ere ac hof childr en. #
Ifbatt eries aresw allo wed,seek medical
att ention immediat ely. +
ENVIR ENVIR
ONMENT ONMENT
ALNO AL
NOTE TE
Environmen tal
damag edue toimproper disposa lof bat-
te ries Batt
eries cont ainpollut ants. Itis
illeg alto dispose ofthem withth ehousehold
ru bbish. #
Dispose
ofbatt eries inan
en vironment allyre sponsi blemann er.
Ta ke disc hargedbatt eries toaqu ali/ed
special istwo rkshop ortoacolle ction
poin tfo rused batteries. RR
eq eq
uir uir
ements: ements:
R Youre qu ire aCR 2032 3V cell battery.
Mer cedes-Be nzrecommen dsthat youha ve the
batt eryre placed ataqu ali/ed special istwo rk-
shop. #
Remo vetheemer gency key(/ page63) . Open
ing and closi ng
63 63

#
Press release knob2down fullyand slide
co ver1 inthedir ection ofthear ro w. #
Foldout cover1 inthedir ection ofthear ro w
and remo ve. #
Remo vebatt erycom partment 3and take
out thedisc hargedbatt ery. #
Inser tth ene wbatt eryint obatt erycom part-
ment 3.Obser vethepositiv epole marking in
th ebatt erycom partment andonthebatt ery
when doing this. #
Push inbatt erycom partment 3. #
Re-att achco ver1 and push ituntil it
eng ages. PrPr
oblems wit oblems
witht h
the Smar he
Smar tKey tK
ey ,tr ,
tr oubl eshoo oubl
eshoo ting tin
g YY
ou can nolong ou
can nolonger loc er
loc kor unl oc k
or unl ockt k
the v he
vehicle ehicle
Po ssible causes:
R The Smar tKey batt eryis we ak ordisc harged. #
Chec kth ebatt eryusing theindicat orlam p
(/ page61). #
Replace theSmar tKey batt ery, ifnecessar y
(/ page63). #
Use there placement SmartKey . #
Use theemer gency keyto loc kor unloc k
(/ page68). #
Have theSmar tKey checkedat aqu ali/ed spe-
ciali stwo rkshop.
Ther Ther
eis int e
is int erf er
fer er
ence fr ence
from apo w om
apo wer er
fulr fu
lradio signal adio
signal
sour sour
ce ce
Po ssible causes ifth efunction oftheSmar tKey is
im pair ed:
R High voltag epo we rlines
R Mobile phones
R Electr onicdevices (notebook s,table ts) R
Shieldin gdue tome talobjects orinduction
loops forelectr icalgate systems oraut omati c
bar rier s #
Mak esur eth at ther eis su1cien tdist ance
be tween theSmar tKey and thepo tential
sou rceof interfere nce.
Y Y
ou hav ou
have los e
lost aSmar t
a Smar tKey tK
ey #
Have theSmar tKey deactiv ated ataqu ali/ed
special istwo rkshop. #
Ifnece ssary,ha ve themec hanical lock
re placed aswell. 6464
Opening
andclosing

Door
s Door
s UUn
loc nloc
king/open ingt king/open
ingthe door he
door sfr s
from t om
the inside he
inside #
T T
o unloc o
unloc kand open afr k
and open afront door ont
door : :
pull door
handle 2.
Loc king pin1pops upwhen thedoor is
unloc ked. #
T T
o unloc o
unloc kar k
arear door ear
door : :
pull there ar door han-
dle.
The locking pinpops upwhen there ar door is
unl ocked. #
T T
o open ar o
open arear door ear
door : :
pull there ar door handl e
ag ain. Cen
tr Cen
trall all
yloc y
loc king andunloc king
andunlocking t king
the v he
vehicle fr ehicle
from om
t t
he insi de he
insi de #
T T
o unl oc o
unl ock: k:
press button1. #
T T
o loc o
loc k: k:
press button2.
% The buttons areals oon thefront passeng er
door .
This does notloc kor unloc kth efuel /ller 0ap.
The vehicle isno tunl ocked:
R Ifyo uha ve loc kedth eve hicle usingth eSmar t-
Ke y
R Ifyo uha ve loc kedth eve hicle usingKEY LESS-
GO LocLoc
king /unloc king
/unlocking t king
the v he
vehicle wit ehicle
withKEY LESS-GO h
KEY LESS-GO RR
eq eq
uir uir
emen ts: emen
ts:
R The Smar tKey isoutside theve hicle.
R The distance between theSmar tKey and the
ve hicle does notex ceed 3T (1 m).
R The driver's door andthedoor onwhic hth e
door handle isused areclosed. Opening
andclosing
65 65

*
N N
O O
TE TE
Dam ageto theve hicle caused by
unint entionall yopening thetrunk lid R
When usinganaut omatic carwash
R When usingahigh pressur eclean er #
Deact ivat eth efunction oftheSmar tKey
in these situations.
or #
Mak esur eth at theSmar tKey isat amin-
imum distance of10 T(3 m) away from
th eve hicle. Obser
vetheno tes:
R Onwashing theve hicle inacar wash
(/ page274)
R Onusin gahigh pressur eclean er
(/ page275) #
T T
o unl oc o
unl ockt k
the v he
vehicle : ehicle
:to uc hth einner surface
of thedoor handle. #
T T
o loc o
loc kt k
the v he
vehicle: ehicle:
touc hsensor surface 1
or 2. #
Con v Con
venie nce closin g: enie
nce closin g:touc hre cessed sensor
sur face 2 untilth eclosing process hasbeen
com pleted. %
Further informatio non con venienc eclo sing
(/ page76) .
If yo uopen thetrunk lidfrom outside, itis aut o-
maticall yunloc ked. PrPr
oblems wit oblems
withKEYLES S-GO,tr h
KEYLES S-GO,troubleshoo oubleshoo
ting ting
YY
ou can nolong ou
can nolong erloc er
loc kor unloc k
or unloc kt k
the v he
vehicle using ehicle
using
KEYLES S-GO KEYLES
S-GO
Po ssible causes:
R The funct ion oftheSmar tKey has been deact i-
va ted.
R The Smar tKey batt eryis we ak ordisc harged. #
Activateth efunction oftheSmar tKey
( / pag e62). #
Chec kth ebatt eryusing theindicat orlam p
(/ page61). #
Replace theSmar tKey batt ery, ifnecessar y
(/ page63). #
Use there placement SmartKey . #
Use theemer gency keyto loc kor unloc k
(/ page68). 6666
Opening
andclosing

#
Have theve hicle andSmar tKey checkedat a
qu ali/ed special istwo rkshop.
Ther Ther
eis int e
is int erf er
fer er
ence fr ence
from apo w om
apo wer er
fulr fu
lradio signal adio
signal
sour sour
ce ce
Po ssible causes ifth efunction ofKEYLESS -GOis
im pair ed:
R High voltag epo we rlines
R Mobile phones
R Electr onicdevices (notebook s,table ts)
R Shieldin gdue tome talobjects orinduction
loops forelectr icalgate systems oraut omati c
bar rier s #
Mak esur eth at ther eis su1cien tdist ance
be tween theSmar tKey and thepo tential
sou rceof interfere nce. AA
ctiv ctiv
ating /dea ctiv ating
/dea ctivating t ating
the aut he
aut oma ticloc oma
ticlocking f king
fea- ea-
tur e tur
e The
vehicle isloc kedaut omaticall ywhen theve hi-
cle isswitc hedonand thewheels aretur ning
fa ster than walking pace. #
T T
o activ o
activ at at
e: e:
press and hold button2 for
appr oximat ely/v eseconds untilanacoustic
signal sounds. #
T T
o deactiv o
deactiv at at
e: e:
press and hold button1 for
appr oximat ely/v eseconds untilanacoustic
signal sounds. In
thefo llo wing situations, ther eis adang erof
being lockedout when thefunction isactiv ated:
R While theve hicle isbein gto w- star tedor
pushed
R Ifth eve hicle isbein gte sted on aro ller dyna-
mome ter PP
o o
w w
er closing function er
closing function &
W W
ARNIN G ARNIN
GRisk ofbecoming trapped when
th edoor sclose automaticall y
Body partsor objects canbecome trapped,
causing injuries. #
Ensur eth at no body partsor obj ects are
in theclosing area. #
Automatic closing ofthedoor scan be
canceled bypulling theout eror inner
door handle. If
yo upush thedoor intoth eloc kto the/r st
de tent pos ition,thepo we rclosing function will
aut omaticall ypull thedoor intoth eloc k. Openin
gand closing
67 67

LocLoc
king/unloc king/unloc
kingt king
the dr he
driv iv
er's door wit er's
door witht h
the he
emer g emer
gency key ency
key %
Ifyo uwish toloc kth eve hicle entirel yusin g
th eemer gency key,/rst pres sth ebutt onfor
loc king from theinside whilethedr iver's door
is open. Thenproceed toloc kth edr iver's
door using theemer gency key. #
Remo vetheemer gency key(/ page63) . #
Inse rttheemer gency keyas faras itwill go
int oopening 1intheco ver. #
Pull and holdthedoor handle. #
Pull theco veron theemer gency keyas
str aigh tas possible awa yfrom theve hicle until
it re leases. #
Release thedoor handle. #
T T
o unloc o
unloc k: k:
tur nth eemer gency keycoun ter-
cloc kwise toposition 0047. #
T T
o loc o
loc k: k:
tur nth eemer gency keycloc kwise to
position 0047. #
Carefull ypr ess theco veront oth eloc kcy lin-
der until iteng ages and isseat ed/rml y. TT
r r
unk unk
Opening
t Opening
the tr he
trunk lid unk
lid &
D D
AN AN
GER GER
Riskofexhaus tga spoison ing
Combu stion enginesemit poison ousexhaus t
ga ses suchas carbon monoxide.Exhaus t
ga ses can entertheve hicle interior ifth etrunk
lid isopen when theve hicle isrunning, espe-
cia lly if th eve hicle isin mo tion . #
Alwaysswitc ho. theve hicle before
open ingthetrunk lid. #
Neverdr ive wit hth etrunk lidopen. 6868
Opening
andclosing