warning MERCEDES-BENZ C CLASS 2021 Repair Manual

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 6).
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 39
7

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 6).
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 6).
If it is still no tpossible torelease theelectr icpar king brak e: #
Donotcon tinue driving. Consult aqu alif ied spec ialistwo rkshop. 398
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 (US Aonl y)
0024 (Canada only)
Please Release Parking
Brake *
The red0049 indicat orlam p(US Aonl y)or 0024 indicat orlam p(Canada only)isflashin g.
The electric par kingbr ak eis applied whileyouar edr ivin g:
R Aco nd ition forau tomatic release oftheelectr icpar king brak ehas notbeen fulfilled (/page15 5).
R Youar eper form ing emer gency braki ng using theelectr icpar king brak e(/ page15 6). #
Che ckthecon ditions forau tomatic release oftheelectr icpar king brak e. #
Release theelectr icpar king brak emanually . Displa
ymessag esand warning/ indic ator lam ps 399

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 (US Aonl y)
0024 (Canada only)
Turn Onthe Ignit ionto
Release theParking Brake *
The red0049 (USAonl y)or 0024 indicat orlam p(Canada only)islit.
Yo uha ve attem pte dto release theelectr icpar king brak ewit hth eignition switchedoff. #
Switc hon theignition .
0027 (US Aonl y)
004D (Canada only)
Check BrakeFluid Level *T
her eis insuf ficie ntbrak efluid inthebr ak efluid reser voir. &
WARNIN GRisk ofan acci dent dueto low brak efluid leve l
If th ebr ak efluid leve lis toolow, thebr aking effect and thebr aking charact eristic sma ybe impair ed. #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.
Do notcontinu edr ivi ng und eranycir cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. #
Donotadd brak efluid. 400
Displaymes sagesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0026 Check BrakePadsSee
Operator' sManual *T
hebrak epads have reac hed thewe arlimit . #
Con sult aqu alif ied spec ialistwo rkshop. Dr
iving systems Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
00D9 Off *T
heHOLD functionisdeactiv ated because theve hicle isslipping oracondition foractiv ation isno tfulf illed. #
React ivat eth eHOLD function later or checkth eactiv ation conditions forth eHOLD function (/page16 2).
é ATTEN TIONASSIST Inoper-
ati ve *A
TTENTION ASSISTis malfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 40
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
é ATTE NTION ASSIST: Take a
Break! *A
TTENTION ASSISThas detected fatig ue oran incr easing lack ofconc entration onthepar tof thedr iver
(/ page16 4). #
Ifnece ssary,ta ke abr eak .
00B2
- -- mph *C
ruise con trol can notbe act ivat ed asnotall act ivation condition sar efulf illed. #
Obser vetheactiv ation conditions forcr uis econtr ol(/ page16 6).
Cr uis eCon trol Inop erative *C
ruise con trol ismalfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
Cruise Control Off *C
ruise con trol has been deact ivat ed.
If th er eis an additional warning tone, cruise contr olha sbe en deacti vatedaut omatic ally(/ page16 5).
ç
- -- mph *A
ctiveDis tan ceAssi stDIS TRONI Ccanno tbe acti vatedas notall activ ation condition sar efulf illed. #
Com plywithth eactiv ation conditions ofActiveDis tance AssistDIS TRONI C(/ page 170). 40
2
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
ç Suspended *I
fyo udepr esstheaccelera torpeda lbe yond theAc tiveDis tance AssistDIS TRONI Cse tting ,th esy stem will switc h
to passiv emode (/page16 7).
ç Of f *A
ctiv eDis tan ceAssi stDIS TRONI Cwa sdeactiv ated. Ifawa rning tone also sou nds, ActiveDis tance Assist
DIS TRONI Cha sde acti vatedaut omatic ally(/ page17 0).
Active Distance AssistCur-
rently Unavailable See
Opera tor'sManu al *A
ctiveDis tan ceAssi stDIS TRONI Cis temp orarily una vailable.
The ambien tcon dition sar eouts idethesy stem limits (/page16 7).
As soo nas theambient conditions arewit hin thesy stem limits, thesy stem will become available again. #
Drive on .
Ac tiveDis tan ceAssist Inop-
erat ive *A
ctiveDis tan ceAssi stDIS TRONI Cis ma lfunctio ning.
Ot he rdr ivi ng systems anddriving safetysy stems mayalso bemalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
Act ive Distance AssistNow
Availabl e *A
ctiveDis tan ceAssi stDIS TRONI Cis op erati ona lag ain. #
Swi tchon ActiveDis tance AssistDIS TRONI C(/ page 170). Dis
play messa gesand warning/ indic ator lam ps 403

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Act ive Steering AssistCur-
rent lyUnavailable See
Operator' sManual *A
ctiveSt eer ing Assis tis temp orarily una vailable.
The ambien tcon dition sar eouts idethesy stem limits (/page17 4).
As soo nas theambient conditions arewit hin thesy stem limits, thesy stem will become available again. #
Drive on . #
Ifnec essar y,cle an thewindshield inthecamer a'sfield ofvision. #
Chec kth etir epr essur eif neces sary.
Active SteeringAssistInop -
era tive *A
ctiveSt eer ing Assis tis malfunct ioning.ActiveDis tance AssistDIS TRONI Cremains available. #
Con sult aqu alif ied spec ialistwo rkshop.
Act ive Steering AssistCur-
rently Unavaila bleDue to
Multiple Emergenc yStops *A
ctiveSt eer ing Assis tis temp orarily una vailable duetomultip leemerg encystops. #
Take ove rth esteer ing and stop inaccor dance withth etra ffic con dition s. #
Swit chtheignition offand switc hit bac kon.
Ac tiveSt eer ing Assis tis available once mor e.
Beg inning Emerg enc ySt op *Y
our hands areno ton thesteer ing wheel. Anemer gency stop isbeing initiated(/ page17 6). #
Put your han dsbac kon thesteer ing wheel.
Yo ucan cancelthedeceler ationatanytime byper form ing one ofthefo llo wing actions :
R Steer ing
R Braking oraccelera ting
R Deact ivating ActiveDis tance AssistDIS TRONI C 40
4
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Ø *A
ctiveSt eer ing Assis thas reac hed thesy stem limits (/page17 4).
Yo uha ve notst eer edindependen tly fo ra consider ableper iod oftime. #
Take ove rth esteer ing and drive on inaccor dance withth etraf fic condi tions.
Bli nd Spot AssistCu rrentl y
Unav ailabl e See Operator's
Ma nua l *B
lind SpotAss istis temp orarily una vailable.
The system limits have been reac hed (/page18 3).
On ce thecause ofthepr oblem isno long erpresent ,th esy stem will beavailable again. #
Drive on .
or #
Ifth edispla ymessag edoes notdisappear ,st op theve hicle inaccor dance withth etra ffic con dition sand restar t
th eengine. #
Ifneces sary,cle an there ar bum per.If th ebum perisespeciall ydir ty,th esensor sin thebum permaybe mal‐
func tioning.
Blind SpotAssist Inopera-
tive *B
lind SpotAss istis malfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
Act ive Blind SpotAssist
Currently UnavailableSee
Operator's Manual *A
ctiv eBli nd Spo tAssi stistemp orarily una vailable.
The system limits have been reac hed (/page18 3).
On ce thecause ofthepr oblem isno long erpresent ,th esy stem will beavailable again. #
Drive on . Dis
playmes sagesand warning/ indic ator lam ps 405

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
or #
Ifth edispla ymessag edoes notdisappear ,st op theve hicle inaccor dance withth etra ffic con dition sand restar t
th eengine.
Act ive Blind SpotAssist
Inoper ative *A
ctiveBli nd Spo tAssi stismalfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
Act ive Lane Keeping Assist
Currently UnavailableSee
Operator's Manual *A
ctiveLane Keeping Assistis temp orarily una vailable.
The ambien tcon dition sar eouts idethesy stem limits (/page18 5).
As soon astheambient conditions arewit hin thesy stem limits, thesy stem will become available again.
Ve hicl eswith Activ eSte ering Assis t:The camer avie wma ybe limit edbythewindshield. #
Drive on.
Ve hicl eswith Activ eSte ering Assis t:Ifth edispla ymessag edoes notdisappear : #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Clean thewindshield.
Act ive Lane Keeping Assist
Inoper ative *A
ctiveLane Keeping Assistis malfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
Act ive Lane Keeping Assist
Camera ViewRestricted
See Operator's Manual *
Ve hicl eswithout Activ eSte ering Assis t:thecamer avie wisrestrict ed. 406
Display mess ages and warning/ indic ator lam ps