2021 MERCEDES-BENZ C-CLASS SEDAN check engine

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions andswitchof fth eengine. Donotcon tinue
dr iving under anycir cums tances. #
Notethemessag eson themultifunc tiondispla y.
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: #
Consult aqu alif ied spec ialistwo rkshop.
If th ecoolant temp eratur edispla yis at theupper endofthete mp eratur escale: #
Exitth eve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page306) . #
Mak esur eth at theair supply tothera diat orisno tobs truct ed. #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at the
cool anttemp eratur edispla yre mains belowthere dar ea.
00B9 En gine diagnosis warning
lam p *T
he yello wChec kEn gine warning lam pis lit while theengine isrunning .
A ma lfunctio nha soccu rred intheengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exc eeded andtheengine maybe inemer gency mod e.
In som est at es, legalrequ iremen tsstipulat eth at youmus timm ediat elyco nsult aqu alif ied spec ialistwo rkshop as
soon astheye llo wChec kEn gine warning lam plight sup. #
Have theve hicle checkedas soon aspossible ataqu alif ied spec ialistwo rkshop. 430
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00C6 Re cup erati ve Brak eSy stem
wa rning lam p(US Aonl y)
004D
Brak eswarning lam p(yel‐
lo w) (Canada only) *
The yello w00C6 warning lam p(US Aonl y)or theye llo w004D brak es warning lam p(Canada only)islit while the
engine isrunning . &
WARNIN GRisk ofan acci dent dueto abr ak esy stem malfunct ion
If th ebr ak esy stem ismalfunct ioning,braking charact eristic sma ybe impair ed. #
Drive on car efull y. #
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. #
Adjus tyo ur spee dand drive on car efull y,lea vingasuit able distance totheve hicle infront. #
Ifth emultifunc tiondispla ysho wsadispla ymes sage,obse rveit. #
Consult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 433

Dr
ivin gsaf etysy stems Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0025 ABS warning lam p *T
he yello wAB Swa rning lam pis lit while theengine isrunning .
ABS isma lfunctio ning.
If th er eis an additional warning tone, EBD isma lfunctio ning.
Ot her drivi ng systems anddriving safetysy stems mayalso bemalfunct ioning. #
Notethemessag eson themultifunc tiondispla y. &
WARNIN GThe reisarisk ofskidding ifEBD orABS ismalfunctioning
The wheels mayloc kdur ing braking.
The steer ability andbraking charact eristic sar ehea vilyim pair edand thebr aking distan cema yincr ease. Inaddi‐
tion, other driving safetysy stems areswitc hedoff. #
Drive on car efull y. #
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. 00E5
ESP ®
wa rning lam p *
The yello wES P®
wa rning lam pflashes whiletheve hicle isin mo tion.
or
The yello wES P®
wa rning lam pis lit while theengine isrunning .
The yello wESP ®
wa rning lam pflashes whiletheve hicl eis in mo tion:
One ormor ewhee lshas reac hed itsgrip limit (/page16 0). 43
6
Dis play messa gesand warning/ indic ator lam ps