2021 MERCEDES-BENZ C-CLASS COUPE ECU

Br
ak es Di
spl aymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 (US Aonl y)
0024 (Canada only)
Parking BrakeSeeOpera-
tor's Manual *
The yello w0024 indicator lam pis lit. The elect ric pa rking brak eis malfun ctionin g.
To appl y: #
Swi tchth eignition offand switc hit bac kon. #
Appl yth eelectr icpar king brak emanually (/page15 2).
If it is no tposs ibleto appl yth eelectr icpar king brak e: #
Consult aqu alif ied spec ialistwo rkshop. #
Wher enecessar y,also secureth epar kedve hicle agains tro lling away.
* The yello w0024 indicator lam pand there d0049 (USAonl y)or 0024 (Canada only)indicat orlam par elit. The elec‐
tr ic par kingbr ak eis malfunc tioning.
To release: #
Swit chtheignition offand switc hit bac kon. #
Release theelectr icpar king brak emanually (/page15 2).
or #
Release theelectr icpar king brak eaut omaticall y(/ page15 2).
If it is still no tpossible torelease theelectr icpar king brak e: #
Donotcon tinue driving. Consult aqu alif ied spec ialistwo rkshop. 41
8
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
* The yello w0024 indicator lam pis lit and there d0049 (USAonl y)or 0024 (Canada only)indicat orlam pis flashin g.
The electric par kingbr ak eis malf unctionin g.
The electric par kingbr ak ecoul dno tbe applied orreleased. #
Swit chtheignition offand switc hit bac kon.
To appl y: #
Release andthen apply theelectr icpar king brak emanuall y(/ page15 2).
To release: #
Appl yand then release theelectr icpar king brak emanuall y.
If th eelectr icpar king brak ecann otbe applied orthere d0049 (USAonl y)or 0024 (Canada only)indicat orlam p
con tinues toflash: #
Donotcon tinue drivin g.Con sult aqu alif ied spec ialistwo rkshop. #
Wher enecessar y,also secureth epar kedve hicle agains tro lling away.
* The yello w0024 indicator lam pis lit and there d0049 indicat orlam p(US Aonl y)or 0024 indicat orlam p(Can‐
ada only)flashes forapp roxima tely tenseco ndsafte rth eelectr icpar king brak ehas been applied orreleased. It
th en remains litor goes out.Theelectr icpar king brak eis malfu nctioning.
If th ech arge leve lis toolo w: #
Char gethe12 Vbatt ery. Dis
play messa gesand warning/ indic ator lam ps 41
9

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
To appl y: #
Swi tchth eignition off.
The electr icpar king brak ewill beapplied automaticall y.
If yo udo notwa nttheelectr icpar king brak eto be applied, e.g.atan aut omatic carwash orwhen theve hicle is
being towe d,lea vetheignition switchedon.This does notinclude having theve hicle towe dwit hth ere ar axle
ra ised.
If th eelectr icpar king brak eis no tapplied automaticall y: #
Switc hth eignition offand switc hit bac kon. #
Release andthen apply theelectr icpar king brak emanuall y(/ page15 2).
If it is still no tpossible toappl yth eelectr icpar king brak e: #
Consult aqu alif ied spec ialistwo rkshop. #
Wher enecessar y,also secureth epar kedve hicle agains tro lling away.
To release: #
Ifth econ ditions forau tomatic release arefulf illed andtheelectr icpar king brak eis no tre leased automat ically,
re lease theelectr icpar king brak emanuall y(/ page15 2).
If it is still no tpossible torelease theelectr icpar king brak e: #
Donotcon tinue driving. Consult aqu alif ied spec ialistwo rkshop. 420
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
R Hea vyrain, sno wor fog
Dr iving systems anddriving safetysy stems maybe malfunct ioningortemp orarily una vailable.
Onc eth ecause ofthepr oblem isno long erpresent ,th edr iving systems anddriving safetysy stems willbeavailable
ag ain.
If th edispla ymessag edoes notdisappear : #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Clean thewindshield.
ä Malfunct ionDrive atMax.
50 mph *A
IRMA TICisfunctioning onlytoalimit edextent. The vehicle's handling charact eristic sma ybe affect ed.
* NO
TEThe tires on thefront axle orthefe nde rscou ldbe damag edbylarge steer ing movements #
Avoid larg esteer ing movements whiledr iving andlistenfo rscr aping sounds . #
Ifyo uhear scraping sounds, pulloverand stop theve hicle inaccor dance withth etra ffic con dition s,and
se ta higher vehicle leve lif possible . #
Drive in amann erappr opriatefo rth ecur rent leve l,but donotex ceed 50mph(80 km/h). #
Consult aqu alif ied spec ialistwo rkshop.
*D YNAMI CBO DY CONT ROLis malfu nctioning. Thevehicle's handling charact eristic sma ybe affect ed. #
Donotdr ive at spe eds grea terth an 50 mph(80 km/h). #
Consult aqu alif ied spec ialistwo rkshop. 430
Displa ymessag esand warning/ indic ator lam ps

Indi
catorand warning lam ps:
0075 Re
stra int system (/ page450)
00E9 Seat
belt(/page450)
Ù Powe rst eer ing (/ page45 1)
ÿ Coolanttemp eratur e(/ page452)
00B9 Chec
kEn gine (/page452)
003D Elect
rical mal functi on(/ page 452)
00B6 Re
ser vefuel withfuel filler flap loca‐
tio nind icat or(/ page45 2)
0049 US
A:elec tric par kingbr ak e(red)
(/ page45 5)
0024 Canada:
electric par kingbr ak e(red)
(/ page45 5)
0024 Ele
ctric pa rking brak e(yello w)
(/ page455)
00C6 US
A:Recup erati ve Brak eSy stem
(/ page455)
004D Canada:
brak es (yello w)
(/ page455)
0027 US
A:brak es (red) (/ page455)
004D Canada:
brak es (red) (/ page455) L
Distance warning (/ page458)
ä AIRMA TIC(/ page458)
ä DYNA MIC BODY CONTR OL
(/ page458)
0025 ABS
(/page459)
00E5 ESP®
(/ page459)
00BB ESP®
OFF (/page459)
0077 Ti
re pressur emonit oring system
(/ page46 1)
0060 Pa
rking lam ps(/ page11 2)
0058 Lo
wbea m(/ page11 2)
0057 High
beam(/ page11 3)
003E003D Tu
rn signal lights(/page11 3)
005E Re
ar foglam p(/ page11 2) Displ
aymessa gesand warning/ indic ator lam ps 44
9

Decl
ining...... ............ .............................278
Endi ngacal l............... ........................ ...278
Incoming callduring anexistin gcall ...... 279
Making.. ............................................. ... 278
Mer cedes me........................................2 88
Call sup thesound menu
Bur mes ter®
sur round soun dsy stem.. ....3 19
Cam era
see 360° Camer a
see Rear vie wcam era
Car key
see Smar tKey
Car wash
see Care
Car wash (car e)......................................... 328
Car e
Air -water duct... .....................................3 28
Au tomatic carwash... ........................ ....3 28
Ca rpet<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 333
Decor ative foil.. .....................................3 31
Dis play <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 333
Ext eriorlighti ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 332
Hea dline <0055001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 333
Ma tte finis h.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 330Pa
int wo rk<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 330
Pl as tic tr<004C005000110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 333
Po we rwa sher. ................................. ...... 329
Re alwo od/tr imelements .................. ... 333
Re ar vie wcam era.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 332
Sea tbel <0057001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 333
Sea tco ver..... ................................... ..... 333
Sensor s.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 332
St eer ing wheel. ................................. ....3 33
Sur round viewcam era..................... .....3 32
Ta ilpipes ............................................ .... 332
Wa shing byhand. ..................................3 30
Whee ls/rims...... ................................... 332
Wi ndo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 332
Wi per blades .........................................3 32
Car gotie-do wnrings. ................................ 105
Car pet(Car e).............................................3 33
Chang eof addr ess....... ...............................23
Chang eof ow ner ship ..................................2 3
Cha nging awheel
Pr epar ation............................................ 381
Ra ising theve hicle ................................ 382
Changing awheel
see Emer gency sparewheel Chan
ginggears
Manu ally....... ......................................... 143
Cha nging hubcap s.. .................................. 381
Cha racter ent ry
Using thecon troller.... ........................... 233
Char ging
Batt ery(v ehicle) .................................... 346
Child seat
At tach ing (notes)... ..................................5 4
Basi cins tructi ons<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ...............50
Fr ont- passeng erseat (notes)... ................6 0
LA TC H-type (ISOFIX )(ins talling). .............5 5
No teson risk sand dang ers... .................. 51
Secu ring on thefront passeng erseat... ...61
Secu ring on there ar seat. .......................5 8
To pTe ther.. ..............................................5 7
Child ren
Av oiding dangersin theve hicle.... ........... 51
Basi cins tructi ons<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ...............50
Speci alsea tbel tre tract or... ........... ......... 55
Ch ock
St or ag elocation. ................................... 380 468
Index

Choc
k
see Choc k
Cleani ng
see Care
Clim atecontr ol
Ac tivati ng/d eactiv ating........... ..............124
Ac tivati ng/d eactiv ating theA/C
func tion (cont rolpanel).. .......................1 25
Ac tivati ng/d eactiv ating thesync hro‐
nizat ionfunc tion (cont rolpanel).. .......... 125
Air -reci rculati onmod e...................... .....1 25
Au tomatic control..... ............................. 125
Con trol pan elfor3-zone automatic
clima tecontr <0052004F00110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 124
Con trol pan elfordua l-zone auto‐
matic climatecontr ol<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 124
Defr osting thewindshield.. .................... 124
Fil ling cap acityforPA Goil .....................3 98
Fr ont airvents <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ..............127
Inser ting/r emoving theflacon (fra‐
gr anc esy stem).. .................................... 126
Ionization..... .......................................... 125
No te<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 124
Re ar air ve<0051005700560011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> .127
Re frig er ant....... .................................... .3 97 Re
frig er ant filling capac ity................ .....3 98
Re mo ving condensation from the
windo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 125
Se tting theair distribution... .................. 124
Se tting theair flow <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 124
Se tting thefragr ance system.... .............1 26
Se tting theve hicle interior temp era‐
tur e... ................................................ ..... 124
Swi tching there ar wind owheat er
on/of f....................................................1 24
Ve ntil ating theve hicle (convenie nce
op eni ng) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 77
Coc kpit
Ov ervie w........................................... ........ 6
Cof feecup symbol
see ATTENTION ASSIST
Collisi ondetection (parked vehicl e)...... ..153
COMAN D
see Mult imedi asy stem
COMAND Touc h
Mana gingdevices..... ........................ ..... 239
Comb inationswi tch...... ............................. 113
Com pass. .................................................... 271 Com
puter
see On-boar dcom puter
Conne ctingthepa rcel ne t.. ...................... 106
Connect ionstatus
Displ aying .............................................. 297
Ov ervie w............................................... 297
Connectivit y
Swit ching transm ission oftheve hicle
position on/off...................................... 236
Cont acts
Call ingup..............................................2 80
Dele ting....... .......................................... 281
Do wnlo ading (from mobi lephone).... .....279
Im por ting.... .......................................... 280
Im por ting (ove rview). ............................ 280
Inf ormatio n............................................2 79
Maki ngacall.......... ...............................281
Na me form at......................................... 280
Op tions.................................................. 281
St or ing.... ............................................... 281
Contr oller
Oper ating.. ............................................ 227
Con venience closing featur e....... ...............78 Inde
x469

0075
Front LeftMalfunction Service
Re quired (exa mp le)...............................4 02
006F Front LeftSeat Backres tNo t
Lo cked (exa mp le).. .................................4 12
00B6 FuelLevelLo w..............................4 15
00B6 GasCap Loose.............................. 415
0025 Inoper ativeSee Oper ator's
Manua l....... ...........................................4 34
00E5 Inoper ativeSee Oper ator's
Manu al........ .......................................... 435
007A Inoper ativeSee Oper ator's
Manu al........ .......................................... 436
0053 Inoper ative......... .......................... 438
: Intell.Ligh tSy stem Inoperativ e....408
Á KeyNo tDe tected (red displ ay
messa ge)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 406
Á KeyNo tDe tected (whit edis‐
pl ay messa ge)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 405
0075 LeftSid eCu rtain Airbag Mal‐
fun ction ServiceRe quired (Exam ple) .....4 02 ¢
Lowe ring............. <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 431
ä Malfunctio nDr ive at Ma x.50
mp h<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 430
: Malfunction SeeOperato r’s
Manual... ............................................... 407
Á ObtainaNe wKe y<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 405
ç Off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 425
00D9 Off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 423
0049 Parking Brak eSee Opera tor's
Manua l......... ..........................................4 18
0077 Please Correct Tire Pressur e... ..... 442
0049 Please Release Parking Brak e.. .....4 21
006F Rear Lef tBac kres tNo t
La tched (exa mp le).................................4 12
Á Replace KeyBat tery <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 405
003D SeeOperator's Manua l......... .......4 39
0075 SRSMalfunction Service
Re quired ................................................ 402
Ù Steer ing Malfunct ionIncreased
Ph ysical Effort See Operator's Manua l... 410 Ù
Steer ing Malfunct ionStop
Immediat elySee Oper ator's Manual ...... 411
003D Stop Vehicle LeaveEngi neRun‐
ning <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011>......440
003D Stop Vehicle SeeOper ator's
Manual... ............................................... 439
00CC Stop Vehicle Vehicle TooLo w....... 431
ç Suspended ................................... 425
: SwitchOf fLights.... ......................4 08
: SwitchOn Head lamp s<0011001100110011001100110011001100110011001100110011001100110011
00110011> 408
0049 Turn On theIgnit iontoRelease
th ePa rking Brak e..................................4 22
0072 Vehicle Ready toDrive Swi tch
th eIgnit ionOffBef oreEx iting ................4 10
00CC Vehicle Rising Please Wait............ 432
00CC Vehicle Rising ...............................4 32
0077 Warning Tire Malfunction. ............ 442
0077 Wheel Sensor(s) Missing .............. 441
Ac tiveBli nd Spo tAssi stCur rently
Un available SeeOper ator' sMan ual...... 428 47
2
Inde x