2021 MERCEDES-BENZ E-CLASS CABRIOLET keyless

#
Toactiv ate: press butt on1 forapp rox‐
ima tely one second.
A visual andaudibl ealar mistrigg ered. #
Todeac tivate: briefly pr ess button1 again.
or #
Press thest ar t/ stop butt onon thecoc kpit,
wit hth eSmar tKey inside theve hicle. Changing
theunloc kingsettings Po
ssible unlockingfunctions oftheSmar tKey :
R Cen tralunlo cking
R Unloc kin gth edr iver's door andfuel filler flap #
Toswitc hbe tw een settings: press the
Ü andß buttonssimul taneousl yfo r
appr oximat elysix seco ndsuntilth eindicat or
lam pflashes twice.
Op tions ifth eunloc kingfunction forth edr iver's
door andfuel filler flap has been selected:
R Tounlo cktheve hicl ece ntr ally:press the
Ü buttontwice.
R Vehicl eswith KEYLESS-GO :if yo uto uc h
th einner surface ofthedoor handle onthe
dr iver's door ,onl yth edr iver's door andfuel
fi ller flap areunlo cked. Deactiv
atingtheSm artK ey functio ns If
yo udo notuse theve hicle oraSmar tKey for
an extende dpe riod oftime, youcan reduce the
ener gycon sum ption ofthere spectiv eSmar tKey .
To do so, deactiv ateth eSmar tKey functions. #
Todeac tivate: press theß buttononthe
Smar tKey twi ce inqu ick succ ession .
The Smar tKey indic ator lam pflashes twice
br ief lyand light sup once. #
Toactiv ate: press anybutt onontheSmar t‐
Ke y.
% When theve hicle isstar tedwit hth eSmar t‐
Ke yin thestor ag ecom partmen tof thecen‐
te rconsole, theSmar tKey functions are
au tomatical lyact ivat ed (/ page13 9). Re
mo ving /ins ertin gthe eme rgency key Re
mo ving the eme rgency key #
Press release knob 1.
Em erge ncy key2 ispush edout slightly. Opening
andclosing 67

If
yo uopen thetrunk lidfrom outside, thetrunk
lid isaut omaticall yunloc ked. Pr
oblems withKEYLE SS-GO, troubleshoo ting Yo
ucan nolon gerlo ck orunloc kth eve hicl e
using KEYLESS-GO
Po ssible causes:
R The Smar tKey functions have been deactiv a‐
te d.
R The Smar tKey batt eryis we ak ordisc harged.
R The Smar tKey isfaulty . #
Activateth eSmar tKey functions
(/ page67 ). #
Chec kth ebatt eryusing theindicat orlam p
(/ page65). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page68). #
Use theemer gency keyto loc kor unloc k
(/ page72 ). #
Have theve hicle andSmar tKey checkedat a
qu alif ied spec ialistwo rkshop. Ther
eis int erfere nce from apo we rful radio
sig nal source
The KEYLESS-G Ofuncti onisim pa ired by,fo r
ex am ple:
R Highvo ltag epo we rlines
R Mobi lephones
R Electr onicdevices (notebook s,table ts)
R Shielding duetome talobje ctsor induc tion
loops forelectr icalgate systems oraut o‐
matic barrier s #
Mak esur eth at ther eis suf ficie ntdist anc e
be tween theSmar tKey and thepo tentia l
sou rceof interfere nce. Ac
tiv atin g/deac tivatin gthe automati clo ck ‐
ing featur e The
vehicle isloc kedaut omatic allywhen the
ignit ionisswitc hedonand thewheels aretur n‐
ing faster than walkin gpace. #
Toactiv ate: press and hold button2 for
appr oximat elyfive seconds untilanacous tic
signal sounds. #
Todeac tivate: press and holdbu tton 1 for
appr oximat elyfive seconds untilanacous tic
signal sounds. Opening
andclosing 71

#
Press and hold theß buttononthe
Smar tKey .
The follo wing functionsar eper form ed:
R The vehicle isloc ked.
R The softto pis closed.
The side windo wsareclo sed when the
sof tto pis closed. #
Tointerru pt con venience closing: release
th eß button.
% Con venie nce closing also func tions with
KEYLESS- GO(/ page70). Re
sol ving problems withtheside windo ws &
WARNIN GRisk ofbeco ming trap ped or
fa tal lyinju re difre 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.
Th eside 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
(/ page65). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page68). Anti-
theftpr otection Fu
nction oftheimm obiliz er The
immo bilizerpreve nts your vehicle from being
st ar tedwit hout thecor rect Smar tKey . 86
Openin gand closing

#
Press thest ar t/ stop butt onwithth eSmar t‐
Ke yin themar kedspace (/page13 9)
Dea ctivat ingth eala rm using KEYLESS-GO #
Grasp theoutside doorhandle withth e
Smar tKey outside theve hicle. 88
Opening andclosing

Insid
ere ar vie wmir ror
see Exterior mir rors
Insp ectio n
see ASSYST PLUS
Ins trument cluster
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 218, 219
Ins trum ent Disp lay
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 219
Ins trument cluster.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 10
Wa rning/ indic ator lam ps.................. .... 392
Ins trum ent Displa yand on-boa rd
com puter
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 218
Int ellig entLight System
Ac tivati ng/d eactiv ating........... ..............117
Ac tivelight functio n.<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 116
Ad aptiveHig hbeam Assis t..................... 118
Ad aptiveHig hbeam Assis tPlus ........ ...... 119
Ad versewe ather light ...................... ...... 117
City lighting...................................... ...... 117
Cor nering light..... <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .........116
Fo glight (extended rang e)<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 117
High waymod e.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 117
Ov ervie w.. ..............................................1 16 Int
erior ligh ting
Ad jus ting ............. ..................................121
Ambi entlighti ng.......... <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> ......122
Re adin glam p.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 121
Swi tch-of fdel aytim e..... ........... .............122
Int erne tra dio
see TuneIn
Io nizatio n
Ac tivati ng/d eactiv ating (MBUX mul‐
tim ediasystem) ................................. ....1 33
iPho ne®
see Smar tphone integr atio n J
Jac k
St or ag elocation. ................................... 322
Jum p-startconnec tion
Gener alno tes.. ...................................... 288 K
KEYLESS- GO
Loc kingth eve hicle ..................................7 0
Pr oblem. .................................................. 71
Un loc kin gse tting.... .................................6 7 Un
loc kin gth eve hicle.... .......................... 70
Kic kdo wn
Using... .................................................. 154
Knee airbag .................................................. 42 L
Label ing(tires)
see Tire labeling
Lam p
see Interior light ing
Lam ps(Ins trum ent Displa y)
see Warning/ indic ator lam ps
Lane detection (automatic )
se eAc tiveLa ne Keeping Assist
Lane Keeping Assist
see ActiveLa ne Keeping Assist
LA TC H-type (ISOFI X)child seat secur‐
ing system
In stallin g.................................................. 56
Le velcontr olsystem
see AIR BO DY CONT ROL
Light switch
Ov ervie w................................................1 13 422
Index

Light
ing
see Inte rior lighting
see Lights
Lights Activelight functio n.<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 116
Ad aptiveHig hbeam Assis t..................... 118
Ad aptiveHig hbeam Assis tPlus ........ ...... 119
Ad versewe ather light ...................... ...... 117
Au tomatic driving lights.... .....................1 14
City lighting.... ........................................ 117
Comb inationswit ch<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 114
Cor nering li<004A004B00570011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> ............116
Fo glight (extended rang e)<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 117
Haza rdwa rning light s............................ 115
High beam... ............ ..............................114
High -beamflasher .................................. 114
High waymod e.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 117
Int elli gent Lig htSystem.... ..................... 116
Light switch.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 113
Lo w-beam headlam ps............................ 113
Pa rking light s.................................... .....1 13
Re ar foglam p.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 113
Re sponsibili tyforlig hting systems ......... 113
Se tting theex terior lighting switch-
of fdela ytime .................................... ..... 121 Se
tting thelow beam... ..................... ..... 121
St andi nglight s................................. ...... 113
Swi tching thesur round lightingon/
of f..................................................... .....1 21
Tu rn signal light......................................1 14
Limit edWa rranty
Ve hicle. ............................................. ...... 29
Liv eTr af fic Inf orma tion
Swit ching thetra ffic inf ormatio ndis‐
pla yon ...................................................2 40
Lo ad inde x(tir es).... ................................... 314
Load -bearing capacit y(tir es)... ................. 314
Load ing
Bag hook ...............................................1 08
Ca rgotie-do wnri<0051004A00560011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> ..107
Def initio ns............. .......................... ......316
No tes... ............................................. ..... 104
Load ingguid elines .................................... 104
Load inginforma tion table ........................ 307
Load s
Sec uring. .......................................... .....1 04 Lo
cking/unloc king
Ac tivati ng/d eactiv ating theaut o‐
matic locking featur e............................... 71
Emerg encykey.. ...................................... 72
KEYLESS- GO..... ...................................... 70
Un loc kin g/op eningth edoor sfrom
th einside.. ..............................................6 9
Lo w-beam headla mps
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 121
Swi tching on/of f.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 113
Lu bricant additives
see Additiv es
Lu ggage
Pa rcel ne t.... .......................................... 109
Secu ring.............. <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ..........104
Lu mbar support
se eLu mbar support(4-w ay)
Lu mbar support(4 -w ay)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 92 M
MA GIC VISIONCO NTR OL
Wi ndsh ield wipe rs<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 125 Inde
x423

Tu
rning thedispla yon/ off.....................1 94
Tr af fic Sign Assis t
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 190
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 191
Sy stem limit ations. ........................... ..... 190
Tr ansmis sionposi tion displa y..................151
Tr anspo rting
Ve hicle. ............................................. ....2 94
Tr ead weargrade ....... ................................ 311
Tr im element (Care)..................................2 77
Tr unk lid
Clo sing..... ............ ................................... 74
Emerg encyrelease (from inside )..............7 6
HANDS-FREE ACCES S.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 74
Loc king separately<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 75
Opening... ................................................ 73
Opening dimensions.... .......................... 340
Tr unk partition
Clo sing..... ............ ................................... 78
Opening... ................................................ 78
Tu neIn
Calling up.......................................... ..... 261
Tu rn signal indicat or.................................. 114 Tu
rn signal light
Ac tivati ng/d eactiv ating........... ..............114
Tw o-w ayradio s
Fr eq uencies. .......................................... 331
No teson installation .............................3 30
Tr ans miss ionoutput (max imum )............ 331 U
Un loc king setting ........................................ 67
Up dat es
Im por tant system updat es....................2 32
USB port
Re ar passe nger com partment ................ 110 V
Ve hicl e
Ac tivati ng/d eactiv ating standb y
mode ................................................ .....1 64
Cor rect us<0048001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....27
Dat aacq uisitio n............ .......................... 29
Dat ast or ag e... ......................................... 29
Diagnos ticsconn ection.... ............... ........ 25
Eq uipment.... .................................... .......2 1
Limit edWarrant y.....................................2 9 Loc
king (automatical ly)..... ....................... 71
Loc king (from inside )...............................7 0
Loc king (KEYLESS-GO) ............................ 70
Loc king/unloc king(emerg encykey)... .....7 2
Lo we ri<0051004A00110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ............327
Ma intena nce........... <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ........22
Med icalai <0047005600110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 27
Pa rking foran extende dpe riod... ........... 163
Pr oblem notification... ............................. 28
QR code rescue card.... ........................... 29
Quali fied specialis two rkshop .................. 27
Ra ising ...................................................3 24
St andb ymode function.. .......................1 63
St artin g(eme rgency operation mode).. .139
St artin g(R emo teOnline).... ...................1 40
St artin g(sta rt/s topbutt on).................. 138
Swi tching off(s ta rt/s topbutt on).......... 157
To wing ...................................................2 17
Un loc kin g(fr om insid e)...........................7 0
Un loc kin g(KE YLE SS-GO).... .....................7 0
Ve ntil ating (co nve nience openi ng) ........... 85
Ve hicl edata
Displ aying (DYN AMI CSE LECT).. ............ 150
Ro ofload.. ............................................. 342
Tu rning circle. ........................................ 340 43
4
Ind ex