2021 MERCEDES-BENZ A-CLASS SEDAN door lock

R
Getout and bestru ck byoncom ingtraf‐
fi c.
R Ope rate vehicle equipment andbecome
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R Releasing thepar king brak e.
R Changing thetransmission position.
R Startin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. *
NO
TEDama getotheve hicle duetoit
ro lling away #
Alw ayssecur eth eve hicle agains tro ll‐
ing away. #
Bring theve hicle toast ands tillby pressing
th ebr ak epedal. #
Ongradients, turnth efront wheels sothat
th eve hicle willrollto wa rdsth ecurb ifit
st ar ts mo ving. #
App lytheelectr icpar king brak e. #
Vehicl eswith automatic transmiss ion:
Eng agetransmis sionposition 005Dinast atio n‐ ar
yve hicle withth ebr ak epedal applied
(/ page13 8). #
Switc hof fth eengine andtheignition by
pr essing button1. #
Release theser vice brak eslo wly. #
Getout oftheve hicle andlockit.
% When youpar kth eve hicle, youcan still
opera tetheside windo wsand thepanor amic
sliding sunroofforapp roxima tely four
min utes ifth edr iver's door isclosed. Gar
agedoor opener Pr
og rammin gbutt onsfo rthe garage doo r
ope ner &
DANG ER Risk ofdeat hcause dby
ex haus tga ses
Combus tionengines emitpoisonous exhaus t
ga ses suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisonin g. Dr
iving andparking14
5

Clear
ingthega rage doo rope nermemo ry #
Press and hold buttons 1and 3.
Indicat orlam p4 lights upyello w. #
Ifindicat orlam p4 flashes gree n: release
butt ons 1and 3.
The entire memo ryhas been deleted. Electr
icpar king brak e Fu
nction oftheelectr icpa rking brak e(app ly‐
ing automat ically) &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunsuper visedintheve hi‐
cle, they cou ld,in pa rticular :
R Open doors,ther eb yendang ering other
per sons orroad user s.
R Getout and bestru ck byoncom ingtraf‐
fi c.
R Ope rate vehicle equipment andbecome
tr apped, forex am ple. In
addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R Releasing thepar king brak e.
R Changing thetra nsmiss ionposition .
R Startin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. The
elect ric pa rking brak eis applied ifth etra ns‐
mission isin position 005Dand one ofthefo llo w‐
ing con dition sis fulf illed:
R The engin eis switc hedoff.
R The seat belttongu eis no tins ertedin the
seat beltbuckleofthedr iver's seat andthe
dr iver's door isopened.
% Toprev ent application: pullthehandle ofthe
electr icpar king brak e(/ page14 9). In
thefo llo wing situat ions,th eelectr icpar king
br ak eis also applied:
R ActiveDis tance AssistDIS TRONI Cis bring ing
th eve hicle toast ands till.
R The HOL Dfun ction iske eping theve hicle sta‐
tio nar y.
R ActivePa rking Assistis ke eping theve hicle
st atio nary.
This isthecase ifone ofthefo llo wing condition s
is also fulfilled:
R The engin eis switc hedoff.
R The seat belttongu eis no tins ertedin the
seat beltbuckleofthedr iver's seat andthe
dr iver's door isopened.
R Ther eis asy stem malfunct ion.
R The powe rsupp lyis insuf ficie nt.
R The vehicle isstatio naryfo ra lengt hyper iod.
When theelectr icpar king brak eis applied, the
re d0049 (USA)or0024 (Canada) indicatorlam p
lights upintheins trument cluster. 14
8
Driving and parking

*
NO
TEDama gedue totowing away at
exc essiv elyhigh speeds orove rlong dis‐
ta nces The
drivet ra in could bedamag edwhen tow‐
ing atexc essiv elyhigh speeds orover long
dis tances. #
Atowing speed of30 mph(50 km/h)
mus tno tbe exc eeded. #
Atowing distan ceof30 miles(50 km)
mus tno tbe exc eeded. &
WARNIN GRisk ofacci dent whento wing
a ve hicle whichis toohea vy
If ano ther vehicle istow- star tedor towe d
aw ay,its weight mustno texc eed theper mis‐
sible gross mass ofyour ow nve hicle, other‐
wise thefo llo wing could occur:
R The towing eyema ybecome detach ed.
R The vehicle/tr ailercombination may
sw erve oreve nro llo ver. #
Ifano ther vehicle istow- star tedor
to we daw ay,its weight mustno texc eed th
eper missible gross mass ofyour ow n
ve hicle. If
ave hicle mustbe tow- star tedor towe daw ay,
its per missib legross weight mustno texc eed the
per missible gross weight oftheto wing vehicle. #
Information ontheper missible gross mass of
th eve hicle canbefound ontheve hicle iden‐
tif ication plate(/ page322). #
Vehicl eswith automatic transmiss ion:Do
no topen thedr iver's door orfront passeng er
door ,ot her wise theaut omatic transmiss ion
aut omaticall yshif tsto position 005D. #
Installth eto wing eye(/ page282). #
Fasten theto w bar .
* NO
TEDama gedue toinc orrect connec‐
tion oftheto w bar #
Onlyconnect theto w rope ortow bar to
th eto wing eyes. #
Deact ivat eth eaut omatic locking mechanism
(/ page71 ). #
Donotactiv ateth eHOLD function. #
Deact ivat eth eto w- aw ay alar m(/ page85) . #
Deact ivat eAc tiveBr ak eAssi st
( / pag e17 7). #
Vehicl eswith automatic transmiss ion:
Shif tth eaut omatic transmiss iontoposition
005C. #
Release theelectr icpar king brak e. #
Switc hon theignition ,ot her wise thesteer ing
wheel locking mayeng age. &
WARNIN GRisk ofacci dent dueto limi‐
te dsaf ety-re lat ed func tionsdur ing the
to wing proce ss
Saf ety-re lat ed func tionsar elimit edorno lon‐
ge rav ailable inthefo llo wing situat ions:
R The ignit ionisswitc hedoff.
R The brak esy stem orpowe rst eer ing sys‐
te m ismalfu nctioning.
R The ener gysupp lyor theon- boar delectr i‐
cal system ismalfunct ioning. 280
Breakdo wnassis tance

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0051 *A
tle as tone door isop en. #
Close alldo ors.
0083 *T
hehood isopen. &
WARNIN GRisk ofacci dent dueto driving withth ehood unlocked
The hood mayopen andblockyo ur vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood isloc ked. #
Stop theve hicle immediat ely,pa ying attention toroad and traf fic condi tions. #
Close thehood.
0084 *T
hetrunk lidisopen. &
DANG ER Risk ofexhaus tga spoisoning
Combus tionengines emitpoisonous exhaus tga ses suchas carbon monoxide.Exhaus tga ses can enterthe
ve hicle interior ifth etrunk lidisopen when theengine isrunning ,esp ecially ifth eve hicle isin mo tion. #
Alw aysswitc hof fth eengine beforeopening thetrunk lid. #
Neverdr ive wit hth etrunk lidopen. Displa
ymessag esand warning/ indic ator lam ps 34
3

De
vic eDe tected atDia gnos ticsCon‐
nectio nSee Operator's Manua l...... ..... 369
Dr iver's Door Open &Trans miss ion
No tin PRisk ofVehicle Rolling Away ... 347
Fr ont Passeng erAirbag Disabled See
Oper ator's Manual ...............................3 34
Fr ont Passeng erAirbag Enabled See
Oper ator's Manual ...............................3 34
Hazard Warning Flashe rsMalfunc‐
tioning .................................................3 40
N Pe rm anen tly Ac tiveRi sk ofRo lling
Aw ay <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 347
Only Shiftto 'P' when Vehicle isSta‐
tio nar y.................................................3 46
Pa rking Assistand PARK TRONI C
In operativ eSe eOperat or'sMan ual.....3 64
Pa rking LockIno per ativ eAppl yPa rk‐
ing Brak e.............................................3 49
Pla cetheKe yin theMar kedSpace
See Oper ator's Manual ........................ 337 PRE-S
AFEInoper ativeSee Oper a‐
to r's Manua l...... .................................. 335
Re versing NotPo ssible Service
Re quired .............................................. 348
Ru nFla tIndi catorInop erati ve .............. 376
Ser vice Required Do NotShif tGear s
Vi sit Dealer .......................................... 348
Te ac hin gin Trans miss ionCom plete .... 349
Te ac hin gin Trans miss ionOper ate
Sel ectorLeverAppl yBr ak efo rXX s
Ris kof Vehicle Rolling Away ................ 349
Ti re Press. Monit orCur rently
Un available .......................................... 372
Ti re Press. Monit orInopera tive ............ 372
Ti re Pressur eMonit orInopera tiveNo
Wheel Sensors .....................................3 72
Ti re sOv erheat ed................................. 374
To Dese lect Por N, Dep ress Brak e
and StartEn gin e.................................. 347 To
switc hengine off,pr ess and hold
St art/ Stop butt onforat lea st3sec‐
onds orpress 3times. ........................344
Tr af fic Sign AssistCur rently Unavail‐
able SeeOperat or'sMan ual................ 360
Tr af fic Sign AssistInoper ative.... .........3 60
Tr ans miss ionMalfun ction .................... 348
Tr ans miss ionMalfun ction Service
Re quired .............................................. 350
Tr ans miss ionMalfun ction Stop ........... 348
Displa yon thewindsh ield
see Head- upDis play
Dis tance control
see ActiveDis tance AssistDIS TRONI C
DI ST RO NIC
see ActiveDis tance AssistDIS TRONI C
Do or
Ch ild sa fety lock (rear door s)................ 63
Loc king(emer gency key) .......................7 2
Opening (from inside) ............................7 0
Un loc kin g(emer gency key) .................... 72
Un loc kin g(fr om insid e).........................7 0 Inde
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Door
controlpan el.....................................1 6
DO T,Tire Iden tificat ionNumbe r(TI N) ... 300
Dr aw bar
see Tow- bar system
Dr inking anddriving ................................ 129
Dr ive Awa yAssis t.... ................................ 198
Dr ive Awa yAssis t
see Protect ion agains tcollision
Dr ive position
Inser ting..............................................1 39
Dr ive pr og ram dis pla y........... ..................135
Dr ive pr og rams
se eDY NA MIC SELE CT
Dr iver's seat
see Seat
Dr iving safetysy stem .............................. 151
ABS (Anti-lock Braki ng System) ........... 153
Ac tiveBr ak eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 173
BA S(Br akeAssi stSystem) .................. 153
Cameras .............................................. 152
EBD (electr oni cbr ak efo rc edis tribu‐
tion )..................... ................................ 155 ESP
®
Cr oss wind Assi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 155
Ov ervie w .......................................... ... 152
Ra dar and ultrasonic sensors........ ...... 152
Re sponsibili ty....................................... 151
ST EER CONTR OL............. ....................156
Dr ivin gsy stem
Susp ension withadap tivedam ping
adjus tment .......................................... 184
Dr ivin gsy stem
see 360° Camer a
see ActiveBli nd Spo tAssi st
see ActiveDis tance AssistDIS TRONI C
see ActiveEmerg encyStop Assis t
see ActiveLa ne Chang eAssi st
see ActiveLa ne Keeping Assist
see ActivePa rking Assist
see ActiveSpe edLimi tAssi st
see ActiveSt eer ing Assis t
see ATTENTION ASSIST
see Blind SpotAssis t
see Cruise control
see Driving safetysy stem
see HOLD function
see Parking AssistPA RK TRONI C
see Rear vie wcam era see
Start-of fassis t
see Traf fic Sign Assist
Dr ivin gtips
Dr ink ing and drivin g............................ 129
Gene raldr ivin gtips .............................1 29
No teson breaking-in ane wvehicle ..... 129
Dr ow siness detection
see ATTENTION ASSIST
Dynamic handlingcontrolsystem
see ESP®
(Ele ctro nic Stabilit yPr og ram)
DY NA MIC SELECT .................................... 134
Con figur ing drive pr ogr am I... .............. 136
Dis play ing engin edat a........................ 136
Dis play ing vehicle data........................ 136
Dr ive pr og ram disp lay ..... .....................1 35
Dr ive pr ogr ams ....................................134
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>134
Oper ating (DYN AMIC SELECTswitc h)
... ..........................................................1 35
Selecti ngthedr ive pr ogr am ................1 35
DY NA MIC SELECT switch
Dam ping adjustment ........................... 184 40
4
Inde x

Re
sponsibili tyforlig hting systems ...... 109
Se tting theex terior lighting switch-
of fdela ytime ....................................... 113
St andi nglight s................................ .....1 09
Switc hingthesur round lighting
on /of f.... .............................................. 113
Tu rn signal light.................................... 110
Limit edWa rranty
Ve hicle ............................................. ..... 30
Liv eTr af fic Inf orma tion
Swit ching thetra ffic inf ormatio ndis‐
pla yon ................................................ 225
Load index(tir es) .................................... 302
Load- bearingcapa city(tires) .................3 02
Lo ading .....................................................103
Car gotie-do wn rings <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ..103
Def initio ns ............ ...............................304
No tes ..................................................... 98
Ro oflugg agera ck <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 104
Load ingguid elines .................................... 98
Load inginforma tion table ...................... 295
Load s
Sec uring ...... .......................................... 98 Loc
king/u nlocking
Ac tivati ng/d eactiv ating theaut o‐
matic locking featur e.............................7 1
Emerg encykey ...................................... 72
KEYLESS- GO................................... .......70
Un loc kin g/op eningth edoor sfrom
th einside ..............................................7 0
Lo w-beam headla mps
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 109
Lu bricant additives
see Additiv es
Lu ggage
Sec uring ................................................ 98
Lu mbar support
se eLu mbar support(4-w ay)
Lu mbar support(4 -w ay)...........................9 1 M
Maint enanc e
Ve hicle ............................................. ...... 24
Maint enanc e
see ASSYSTPL US Malfunct
ion
Re stra int system .................................... 37
Malfunc tionmessag e
see Displa ymessa ge
Maneuv ering assis tance
Ac tivati ng/d eactiv ating ........... ............199
Cr oss Traf fic Aler t<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> ....199
Dr ive Aw ayAssi st<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 198
Map ...........................................................2 25
Displ aying onlin emap contents .......... 225
Disp laying weather informat ion ...........2 25
Mo ving ................................................ 225
Selecti ngthemap orient ation .............2 25
Se tting themap scale .......................... 225
Switc hingfree wa yin fo rm atio n
on /of f.................................................2 25
Massag epr og ram
Re settin gth ese ttings ............................9 3
Massag epr og rams
Sel ecti ngthefront seats ....................... 93
Massag ese ttings
Re settin g............................................... 93
Matt efinish (cleaning instructions) ...... 260 Inde
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