2021 MERCEDES-BENZ C CLASS keyless

Ac
tiv atin g/deac tivatin gthe acoustic lock ing
ve rificat ion signa l Mult
imed iasystem:
4 Vehicle 5
î Vehicle Setting s
5 Aco ustic Lock #
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv atin g/deac tivatin gthe pani calar m Re
quirement s:
R The ignit ionisswitc hedoff. #
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 ononthecoc kpit,
wit hth eSmar tKey insid eth eve 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 3). Op
ening an dclos ing 65

#
Tounlo cktheve hicl e:touc hth einner sur‐
fa ce ofthedoor handle. #
Toloc kth eve hicl e:touc hsen sor surface
1 or2. #
Convenience closing:touc hre cess edsen‐
sor surface 2untilth eclosing process has
been completed.
% Further information oncon venie nce closing
(/ page 79) . 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. #
Activateth eSmar tKey functions
(/ page65). #
Che ckthebatt eryusing theindicat orlam p
(/ page64 ). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page66). #
Use there placemen tSmar tKey . #
Use theemer gency keyto loc kor unloc k
(/ page70). #
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. Open
ingand closing 69

#
Press trunk lidremo teoper ating switch1. #
Press closing button1 onthetrunk lid.
Ve hicl eswith KEYLESS-GO #
Press locking button2 onthetrunk lid.
If aSmar tKey isde tected outsid eth eve hicle,
th etrunk lidwill close andtheve hicle willbe
loc ked. #
With thetrunk lidcom pletely op en,pr es sand
hold the008B buttonontheSmar tKey .The Smar
tKey mus tbe inthevicin ityoftheve hi‐
cle.
Ve hicl eswith HANDS -FREEACCESS #
With thetrunk lidcom pletely op ened ,ma kea
kic king movement withyo ur foot belo wthe
bum per(/ page74 ).
Tr unk lidaut omatic reve rsing funct ion
The trunk lidiseq uipped withaut omat icbloc k‐
ag ede tection with are ve rsing func tion.If an
obs tacle stops thetrunk liddur ing theaut omatic
closing procedur e,itwill automaticall yopen
ag ain. Theautomatic reve rsing func tion isonl y
an aid and isno ta subs titutefo ryo ur att entive‐
ne ss. #
Dur ing theclosing process, makesur eth at
no body partsarein theclosing area. &
WARNIN GRisk ofbeco ming trap ped
des pite reve rsing func tion
The reve rsing func tion willnotre act :
R Tosof t,light andthin obje cts, e.g. fing ers
R Towa rdsth eend oftheclosing procedur e Openin
gand closing 73

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.
R The panor amicsliding roof isclosed. #
Tointerru pt con venience closing: release
th eß button. #
Toclose thero ller sunblind s:press and
hold theß buttonagain.
% Con venie nce closing also func tions with
KEYLESS- GO(/ page68). Re
sol ving problems withtheside 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 Opening
andclosi ng 79

R
When theto w- aw ay alar mistrigg ered
(/ page86 )
The ATA system isarmed automaticall yaf te 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 Indicat
orlam p1 flashes whentheAT Asy stem
is armed.
The ATAsy stem isdeactiv ated aut omaticall yin
th efo llo wing situat ions:
R Afterunloc kingtheve hicle withth eSmar t‐
Ke y
R Afterunloc kingtheve hicle using KEYLES S-
GO
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestor ag ecom partmen t
(/ page13 3)
% WhentheMer cedes‑ Benzemergency call
sy stem isactiv eand thealar mstay son for
mor eth an 30 sec onds, ames sageis aut o‐
mat icall ysen tto theCus tomer Assis tance
Ce nter (/ page 277).
% Inthecase ofsevere batt erydisc harging,
th eanti- theftalar msystem isaut omaticall y
deactiv ated tofacil itat eth ene xt engine
st ar t.
Deact ivat ing theATA #
Press theÜ, ßor008B buttononthe
Smar tKey . or #
Press thest ar t/ stop butt onwithth eSmar t‐
Ke yin thestow agecom partment
(/ page13 3)
De activ ating theala rm using KEYLESS-GO #
Grasp theoutside doorhandle withth e
Smar tKey outside theve hicle. Fu
nction oftheto w- aw ay alar m %
This function mayno tbe available inall
coun tries.
An audible andvisual alarmistrigg ered ifan
alt eratio nto your vehicle's angleof inclination is
de tected whi letheto w- aw ay alar misarmed.
The tow- aw ay alar misaut omat icallyar med afte r
appr oximat ely60 seco nds:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO
The tow- aw ay alar mison lyarmed when thefo l‐
lo wing compone ntsar eclos ed:
R Doo rs 86
Openin gand closing

Ins
trum ent Disp lay
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 207
Ins trume ntclu ster ................................... 10
Wa rning/ indic ator lam ps.................. .... 425
Ins trum ent Displa yand on-boa rd
com puter
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 206
In te llig ent Light System
Ad aptiveHig hbeam Assis t..................... 117
Cor nering light..... <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .........117
Int erior ligh ting
Ad jus ting ............ .................................... 119
Ambi entlighti ng........... <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> ......119
Re adin glam p.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 119
Swi tch-of fdel aytim e..... ........... .............120
Int erior motion sensor
Ac tivati ng/d eactiv ating........... ................88
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 87
Int ermed iatedes tination
Calculat ingaro utewit hint ermed iate
des tinatio ns...........................................2 37
Ent ering ............ .....................................236
Modi fying.. ....... .....................................237 St
artin gan aut omat icga sst atio n
sear ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 236
St artin gth eaut omatic service sta‐
tio nsear ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 242
Int erne tconnect ion
Comm unicationmod ulefunction ...... .... 279
Con nection status.. .......................... .....2 80
Displ aying thecon nect ionstatus.. .... .... 280
In fo rm atio n...................................... ...... 279
Re strictions <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> ...............279
Int erne tra dio
see TuneIn
iP hon e®
see AppleCa rPlay®
see Mercedes-Benz Link J
Jac k
St or ag elocation. ................................... 358
Jum p-startconnec tion
Gener alno tes.. ...................................... 323 K
KEYLESS- GO
Loc kingth eve hicle ..................................6 8
Pr oblem. .................................................. 69
Un loc kin gse tting.... ................................ 65
Un loc kin gth eve hicle .............................. 68
Kic kdo wn
Using... .................................................. 147
Knee airbag .................................................. 41 L
Labelin g(tir es)
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
Languag e
No tes... .................................................2 25 456
Index

Eq
uipme nt............. .................................. 22
Li mit edWarrant y.....................................2 9
Loc king (automatical ly)..... ...................... 69
Loc king (from inside )........................... .... 68
Loc king (KEYLESS-GO) ............................ 68
Loc king/unloc king(emerg encykey)... .... 70
Lo we ri<0051004A00110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ............363
Ma intena nce.......... <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ........23
Med icalai <0047005600110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 27
Pa rking foran extende dpe riod... ........... 157
Pr oblem notification... ..................... ........ 28
QR code rescue card.... ........................... 29
Quali fied specialis two rkshop .................. 27
Ra ising .............................................. .... 360
St andb ymode function.. .................. ...... 157
St artin g(eme rgency operation mode).. .133
St artin g(R emo teOnline).... ............... ....1 34
St artin g(sta rt/s topbutt on).................. 132
Swi tching off(s ta rt/s topbutt on)...... .... 150
To wing .................... ...............................2 05
Un loc kin g(fr om inside )...........................6 8
Un loc kin g(KE YLE SS-GO).... .............. .......6 8
Ve ntil ating (co nve nience openi ng) ........... 78
Ve hicl edata
Displ aying (DYN AMI CSE LECT).. ............ 143 Ro
ofload.. ............................................. 377
Tr ans ferring toAndr oid Au to<0011001100110011001100110011001100110011001100110011001100110011
00110011> 271
Tr ans ferring toApp leCa rPlay®
.............. 271
Tu rning circle. .................................. ...... 376
Ve hicle height .................................... ....3 76
Ve hicle length........................................3 76
Ve hicle width.... ................................. ....3 76
Wheelbase ....................................... ...... 376
Ve hicl edata stor ag e
Ev ent datare cor der s.<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 33
Mu ltimed iasystem/Mer cedesme
con nect... ................................................ 33
Ve hicl edimens ions...... ............................. 376
Ve hicl eele ctroni cs
No tes... ............................................. ....3 66
Tw o-w ayradios ................................ ...... 366
Ve hicl eiden tificati onnumber
see VIN
Ve hicl eiden tificati onplat e
Pa int code. ............................................ 368
VIN. .......................................................3 68
Ve hicl eint erior
Coo ling orhea ting (Remo teOnline) .......1 33 Ve
hicl eke y
see Smar tKey
Ve hicl emaint enance
see ASSYSTPL US
Ve hicl eoper ation
Outsi detheUS Aor Canada.. ...................2 3
Ve hicl eto ol kit
TIRE FITkit. .............................................3 17
To wing eye... .......................................... 331
Ve ntilat ing
Con venie nce openi ng<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......78
Ve ntilat ion
see Climat econt rol
Ve nts
see Airvents
VIN Identif icationplat e............ <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 368
Sea <0057001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011>.....368
Wi ndsh ie<004F004700110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ..368
Vi sion
Re mo ving condensatio nfrom the
windo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 129 47
2
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