2020 MERCEDES-BENZ A-CLASS SEDAN brake

in
front of,behin dor next to theve hicle (depend‐
ing ontheve hicle's equipment).
Depending ontheve hicle's equipment, thera dar
sensor sar eint egr ated behind thebum pers
and/or behindthera diat orgrill. The ultrasonic
sensor sar elocat edinthefront and rear bum p‐
er s. Ke ep these partsfree ofdir t,ice and slush
(/ page39 7). The sensor smus tno tbe cov‐
er ed, forex am ple bybicy clerack s, ove rhang ing
loads, sticke rs,fo ilor foils toprotect agains t
st one chipping .Ad dition allicense platebr ac ket
can like wise impair thefunc tion oftheultr asonic
sensor s.In theev ent ofdamag eto thebum pers
or radiat orgrill, orfollo wing acollis ionimpact ing
th ebum persor radiat orgrill, have thefunc tion
of thesensor sch eckedat aqu alif ied spec ialist
wo rkshop. Ifth esensor sar edamag ed,some
dr iving systems anddriving safetysy stems may
no long erfunc tion proper ly. Ov
ervie wof driving systems anddriving
saf etysy stems In
this sect ion, youwill find informa tionab ou t
th efo llo wing drivin gsy stems anddriving safety
sy stems:
R 360° Camer a(/ page19 5)
R ABS (Anti-loc kBrak ingSyst em)
(/ page16 1)
R ActiveDis tance AssistDIS TRONI C
(/ page 172)
R ActiveBr ak eAssi st(/ pag e16 4)
R ActiveLa ne Keeping Assist(/ page21 1)
R Start-of fassis t(/ page18 6)
R ATTENTION ASSIST(/ page204)
R BAS(Bra keAssis tSys tem) (/ page16 1)
R Hill StartAs sis t(/ page18 5)
R Sus pens ion wi th adap tivedam pingadjus t‐
men t(/ page18 7)
R EBD (Ele ctronic Brakeforc eDis tribution)
(/ page16 4) R
ESP ®
(E lectr oni cSta bility Program)
(/ page16 1)
R ESP ®
Cr ossw indAssis t(/ page16 4)
R ActiveSpe edLimi tAssi st(/ pag e17 6)
R HOLD function (/page18 5)
R STEER CONTR OL(/ page 164)
R ActiveSt eer ing Assis twit hre scue lanefunc‐
tion (/page17 9)
R ActiveEmerg encyStop Assis t(/ page18 2)
R ActivePa rking Assist(/ page19 8)
R Parking AssistPA RK TRONI C(/ page18 7)
R Rear vie wcam era(/ page19 2)
R ActiveLa ne Chang eAssi st(/ pag e18 1)
R Cruise contr ol(/ page17 0)
R Blind Spo tAssi stand ActiveBli nd Spo tAssi st
wit hex itwa rning (/ page208)
R Traf fic Sign Assist(/ pag e206 ) 16
0
Driving and parking

Tr
ansmis sion Di
spla ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
Apply Brake toShift from
'P' *
Yo uha ve attem pte dto shif tth etra nsmiss ionout ofpar kposition 005Dand intoano ther tra nsmiss ionposition . #
Depr essthebr ak epedal. #
Select transmiss ionposition 005B,005Eorneutr al005C.
To Deselec tP or N,
Depress Brakeand Start
En gine *
Yo uha ve attem pte dto shif tth etra nsmiss ionout ofpar kposition 005Dorneutral 005Cand intoano ther tra nsmiss ion
position . #
Depr essthebr ak epedal. #
Chang eth etra nsmiss ionposition . #
Startth eengine.
Only Shift to'P' when Vehi-
cle isStationary *
Pa rk position 005Dcan beeng aged onlywhen theve hicle isstatio nary. #
Tostop, depr essthebr ak epedal. #
Shif tth etra nsmiss iontopar kposition 005Dwhile theve hicle isstatio nary.
App lyBra ketoShi ftto 'R' *
Youha ve attem pte dto select transmission position005E. #
Depr essthebr ak epedal. #
Select transmiss ionposition 005E.
Driver 'sDoor Open &
Transm issionNotinPRisk
of Vehicle RollingAway *
The driver's door isno tfully closed andtransmiss ionposition 005B,005Eorneutr al005C isselect ed. #
Select parkposition 005Dwhen switchingoffth eve hicle. Displa
ymessag esand warning/ indic ator lam ps 483

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Untilthen, alwaysselect parkposition 005Dmanually beforeyo uswit choffth eengine. #
Beforelea ving theve hicle, apply theelectr icpar king brak e.
Transm issionMalfunct ion *T
hetransmission ismalfunctionin g.The cause couldbeanove rheat edclutc hor bloc kedge ars. #
Letth etransmission cooldown. #
Ifth edispla ymessag est ill appear sfo llo wing are star t,con sult aqu alif ied spec ialistwo rkshop.
0080
Trans. OilOverheated
Drive onwith Care *T
hetransmission isove rheating. Whenthedispla ymessag eis activ e,star t-up and drivin gch aract eristic sma ybe
te mp orarily im pair ed. #
Drive at low engine speeds. #
Avoid spor tydriving. #
Beforepulling away on uphill gradients, letth etra nsmiss ioncool down until thedispla ymessag edisappear s.
Parkin gLock Inoper ative
Apply Parkin gBrak e *
The transmiss ionismalfunct ioning.Theparkposition 005Dcann otbe select ed. #
Park theve hicle safely. #
Use theelectr icpar king brak eto secur eth eve hicle agains tro lling away.
Teaching inTransmission
Operate SelectorLever
Apply Brake forXXsRisk
of Vehicle RollingAway *T
hetransmission isbeing taught in.Ther eis arisk oftheve hicle rolling away. #
Dep ress and hold thebr ak epedal untilthete ac h-in proce sshas been completed.
The elect ric pa rking brak eis applied automat icallydur ing thete ac h-in proce ss. #
Swit chon theignition . #
Select parkposition 005D,transmiss ionposition 005Eorneutr al005C. Displa
ymessag esand warning/ indic ator lam ps 485

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Apply Parking BrakeRisk
of Rolling AwaySeeOpera-
tor's Manual *T
hetransmission positioncannotbe reliably identified. #
Use theelectr icpar king brak eto secur eth eve hicle agains tro lling away.
Teaching inTransmission
Complete *T
hetransmission's teac h-in proce ssiscom plete.All trans mis sionpos itions canbeselect edagain.
Tra nsmi ssion Malfunction
Servi ceRequire d *T
hetransmission ismalfunctionin g.
Consult aqu alif ied spec ialistwo rkshop. 486
Displa ymessag esand warning/ indic ator lam ps

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 7).
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 7).
or #
Release theelectr icpar king brak eaut omaticall y(/ page15 7).
If it is still no tpossible torelease theelectr icpar king brak e: #
Donotcon tinue driving under anycir cums tances. Consu ltaqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 48
7

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 7).
R Youar eper form ing emer gency braki ng using theelectr icpar king brak e(/ page15 8). #
Che ckthecon ditions forau tomatic release oftheelectr icpar king brak e. #
Release theelectr icpar king brak emanually . 490
Displa ymessag esand warning/ indic ator lam ps

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. Dis
playmes sagesand warning/ indic ator lam ps 49
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng und eranycir‐
cums tances. #
Donotad dbr ak efluid. #
Con sult aqu alif ied spec ialistwo rkshop.
0026 Check BrakePadsSee
Operator's Manual *T
hebrak epads have reac hed thewe arlimit . &
WARNIN GRisk ofacci dent dueto restrict ed braki ng powe r
When thebr ak epads have reac hed their wearlimit ,th ebr aking powe rma ybe restrict ed. #
Drive on car efu lly. #
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. #
Consult aqu alif ied spec ialistwo rkshop. 492
Displa ymessag esand warning/ indic ator lam ps