sensor MERCEDES-BENZ A-CLASS SEDAN 2020 Owner's Guide

Obser
vethefo llo wing when selecting,ins talling
and replacing tires:
R Onlyuse tires and wheels ofthesame type
(summer tires, wint ertires, MOEx tende d
tir es) and thesame make.
R Onlyins tallwheels ofthesame sizeonone
axle (leftand right).
It is onl yper missible toins talla dif fere nt
wh eelsi ze intheeve ntofaflat tirein order
to drive to thespecialis two rkshop.
R Onlyins talltir es ofthecor rect size ontoth e
wheels.
R Vehicl eswith atir epr ess uremonit oring
sy stem: Allinstalled wheels mustbe equip‐
ped withfunc tioningsensorsfo rth etir e
pr essur emonit oring system.
R Attemp eratur esbelo w45 °F(7°C), usewin‐
te rtir es orall-seaso ntir emar kedM+S forall
whee ls.
Wi nter tires bearing the004D snowflak esym‐
bol inaddition totheM+S marking prov ide
th ebes tpossible grip inwintr yro ad con di‐
tio ns. R
ForM+S tires, only usetires wit hth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tires installed.
If th is isbelo wtheve hicle's maximum speed,
th is mus tbe indic ated byan appr opriate
label inthedr iver's field ofvision.
R Break inne wtires atmoder atespeeds for
th efirs t60 miles(1 00 km) .
R Replace thetir es afte rsix yearsat thelat est,
re ga rdless ofwe ar.
R Wh enreplac ingwith tires that donotfe a‐
tur eru n-flat charact eristics :ve hicles with
MOExt ended tires areno teq uipped witha
TIREFIT kitatthefa ct or y. Eq uip th eve hicle
wit haTIREFIT kitafte rre placing withtir es
th at do notfe atur eru n-f latch aract eristic s,
e.g .wint ertires.
Fo rmor einf ormation onwhee lsand tires, con‐
tac ta qu alif ied spec ialistwo rkshop.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page42 4) R
Tire and Loadi ngInfo rm atio nplacar d
(/ page43 1)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e438)
R Tire pressur eta ble (/ page425 )
R Noteson theemer gency sparewheel
(/ page45 2) No
teson rotat ing whee ls &
WARNIN GRisk ofinju rythro ugh differ‐
ent whee lsizes
Int erch ang ingthefront and rear wheels ifth e
wheels ortires have differe nt dimens ions
ma yse verely im pa irth edr iving charact eris‐
tic s.
The wheel brak es orwheel suspension com ‐
pon entsma yalso bedamag ed. #
Rotate front and rear wheels onlyifth e
wheels andtires areof thesame dimen‐
sions. Wheels
andtires 44
5

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 Malfunct ionSee Opera-
tor’s Manual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Act ive Headla mpsInopera-
tive *T
heactiv eheadla mpsar emalfunctioning. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Switch OnHeadla mps *Y
ouaredr iving without low- beam headlam ps. #
Turn thelight switc hto the0058 or0058 position . Displa
ymessag esand warning/ indic ator lam ps 47
5

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
ç
ð
00C7
¸ Currently Unavailable
Radar SensorsDirty *T
heradar sensor system ismalfunct ioning.Possible causes:
R Dirton thesensor s
R Hea vyrain or sno w
R Extende dcou ntrydr ivi ng without other traf fic, e.g. inthedeser t
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 allsen sors(/ page39 7). #
Restar tth eengine. Displa
ymessag esand warning/ indic ator lam ps 49
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Ifth edisp laymess agedoes notdisa ppear: consult aqu alif ied spec ialistwo rkshop. Ti
re pres sur emoni tor Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Tire Press. MonitorCur-
rent lyUnavailable *T
her eis int erfere nce from apo we rful radio signal source.Asare sult, nosignals from thetir epr essur esensor sar e
being recei ved. The tirepr essur emonit oristemp orarily una vailable. #
Drive on.
The tirepr essur emon itor will restar taut omat icallyas soon asthecause hasbeen rectif ied.
Tir ePre ss. Moni torInope ra-
tive *T
hetirepr essur emonit orismalfunctionin g. &
WARNIN GThe reisarisk ofan accident ifth etir epr essur emonit oring system ismalfunct ioning
If th etir epr essur emonit oring system ismalfunct ioning,itis no table toissue awa rning ifth er eis pressur eloss
in one ormor eof thetir es.
Und erinf lated tires ma y,forex am ple, impair thedr iving, steer ing and braking charact eristic s. #
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. #
Consult aqu alif ied spec ialistwo rkshop.
Tire Pressure MonitorInop-
erative NoWheel Sensors *T
hewheels installed donotha ve suit able tirepr essur esensor s.The tirepr essur emonit orisdeactiv ated. #
Installwheels withsuit able tirepr essur esen sors. 508
Display mess ages and warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0077 Wheel Sensor(s) Missing *T
her eis no signal from thetir epr essur esensor ofone ormor ewheels. Nopressur eva lue isdispla yedfo rth eaf fec‐
te dtir e. #
Have thefa ulty tirepr ess uresen sor replaced ataqu alif ied spec ialistwo rkshop.
0077 Check Tires *T
hetirepr essur ein one ormor etir es has dropped significantl y.The wheel position isdispla yed. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
Ti re pressur esthat areto olow pose thefo llo wing hazar ds:
R The tires ma ybur st,especiall yas theload andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or unevenly, whic hma ygr eatl yim pair tiretract ion.
R The drivin gch aract eristic s,as wellas steer ing and braking, maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ure. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur e(/ page42 4) and thetir es. Displa
ymessag esand warning/ indic ator lam ps 509

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p The
redcoolant warning lam pis lit while theengine isrunning .
*P oss ible cau ses:
R The temp eratur esensor ismalfunct ioning
R Coolant leve lto olow
R The airsuppl yto thera diat orisobs truct ed
R The radiat orfanis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceed edthemaximum permissible temp eratur e. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. #
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: Displa
ymessag esand warning/ indic ator lam ps 51
9

Air
-water duct .......................................... 391
Ke eping free ........................................3 91
Airb ag.........................................................4 0
Ac tivati on ........... ...................................35
Fr ont airbag (driver ,fr ont passeng er)....4 0
Ins tallation locations .............................4 0
Knee airbag........................................... 40
Ov ervie w ..... .......................................... 40
PA SSENGER AIRBAGind icat orlam p.....4 5
Pr otect ion ..............................................4 2
Sid eairba g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 40
Wi ndo wcur tain airbag ...........................4 0
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system)
All-wheel drive
see 4MA TIC
Alt ernativ ero ute
see Route
Amb ientlighting
Se tting (mult imediasystem) ................1 18 Andr
oidAuto <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 349
Co nnecting amob ile pho ne<0011001100110011001100110011001100110011001100110011001100110011
0011> 350
Co ntr olusing theapplication buttons
... ... ................................................... ....3 51
Endi ng............. .................................... 351
Inf orma tion............. .......................... ...350
Ov ervie w ............. ................................349
Sou ndsetting s............. ........................ 351
Tr ans ferred vehicle data......................3 51
Anim als
Pe ts intheve hicle ........................... ...... 63
Anti-loc kbr aking system
see ABS(An ti-loc kBr akin gSy stem)
Anti-skid chains
see Snowch ains
Anti -thef tala rm system
see ATA(anti-t heftal ar m system)
Anti-t heftpr otection
Imm obiliz er.................................... ........ 86
Anticip ator yoccupa ntprotection
see PRE- SAFE®
(anticip ator yoccu‐
pa nt protect ion)
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus) Apple
CarPla y®
........................................3 48
Connecting aniPho ne®
....... ................348
Contr olusi ng theapplication buttons
... ..........................................................3 49
Ending ................................................. 349
No tes .................................................. 348
Ov ervie w ............................................. 348
Sound settin gs .................................... 349
Tr ans ferred vehicle data......................3 51
Assis tance
Men u(on -boardco mp uter) .................. 220
Assis tance systems
see Drivin gsaf etysy stem
ASS YSTPL US <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>385
Batt erydi sconne ctionpe riods .............3 86
Displ aying theser vice duedate........... 385
Fu nctio n/no tes ................................... 385
Re gular maint enance work <0011001100110011001100110011001100110011001100110011001100110011
00110011> 385
Spec ialser vice requ iremen ts.............. 385
ATA (anti-thef tala rm system) .................. 86
Ac tivati ng/d eactiv ating theint erior
mo tion sensor ....................................... 88
Ar ming/ disarming theto w- aw ay
alar m.....................................................8 8 532
Index

Dea
ctivating thealar m.......................... 87
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 86
Fu nctio nof theint erior motion sensor ..88
The tow- aw ay alar mfun ction .......... .......8 7
AT TENTI ONASSIST <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 204,206
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>204
Se tting <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 206
Sy stem limit ations ...............................2 04
At tention assistant
see ATTENTION ASSIST
Au thorized Mercedes- BenzCenter
see Qualif iedspec ialistwo rkshop
Au thorized workshop
see Qualif iedspecialis two rkshop
Au tomatic distanc eco ntr ol
se eAc tiveDis tance AssistDIS TRONI C
Au tomatic drivin glights ........... ...............114
Au tomatic engine star t(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> .......137
Au tomatic engine sto p(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> .......137 Au
tomatic fron tpass engerfr on tair‐
bag shutoff <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 44,45
Fu nctio nof theaut omatic front
passeng erfront airbag shutoff......... ..... 44
PA SSENGER AIRBAGind icat orlam p.....4 5
Au tomatic fron tpass engerfr on tair‐
bag shutoff
see Automatic front pass engerfront
airb agshut off
Au tomatic mirrorfo lding function
Ac tivati ng/d eactiv ating ........... ............125
Au tomatic trans mis sion
DIR ECT SELEC Tleve r..... .................... ..142
Dr ive pr ogr am disp lay ............. ............. 140
Dr ive pr ogr ams............. .......................139
DY NA MIC SELE CTswitc h.................... 139
Eng aging drive po sitio n............. .......... 144
Eng aging neu tral ............. .....................143
Eng aging park position .................. ...... 143
Eng aging reve rsege ar .................... .....1 43
Kic kdo wn ....... ......................................145
Manual gearshif ting.............................1 44
St eer ing wheel paddle shifters ............ 144
Tr ans miss ionposit iondispla y........ ...... 142
Tr ans miss ionposit ions........................ 142 Au
tomatic trans mis sion (problem)
se eTr ans miss ion(problem ) B
BA S(Br akeAssis tSy stem) ...................... 161
Batt ery
Ch arging (Remo teOnline) .................... 133
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 67
Batt ery
see Battery(v ehi cle)
Batt ery(v ehi cle) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 412
Char ging...............................................4 11
Char ging(R emo teOnline) .................... 133
No tes .................................................. 408
No tes(s ta rting assis tance and
ch argin g) .............................................. 410
Re placing .............................................4 12
St artin gassis tance <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......411
Bel t
see Seatbel t
Bli nd Spo tAs sist <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 208
Ac tivati ng/d eactiv ating ........... .............211
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 208
Sy stem limit ations ...............................2 08 Inde
x533

Car
key
see Smar tKey
Car wash
see Care
Car wash (car e)........................................3 91
Car -to-X -Com municat ion
Dis playing hazardwa rnings .................. 319
Ov ervie w ...... .................................... ....3 18
Sendi nghazard warnings .....................3 19
Car e.......................................................... 398
Air -water duct ...................................... 391
Au tomatic carwash ........................ ..... 391
Car pet............ ................................. ....3 98
Decor ativefo il ................................ .....3 95
Displ ay<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 398
Ext eriorlighti ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 397
Hea dline r<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 398
Ma tte finis h<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ................394
Pa int wo rk <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 394
Pl as tic trim <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 398
Po we rwa sher ...................................... 392
Re alwo od/tr imelements ............... ....3 98
Re ar vie wcam era ................................ 397
Re ar vie wcam era/3 60°Camer a........ 397 Seat
belts...................................... ...... 398
Seat cover..... ................................... ... 398
Sensor s..... ........................................ .. 397
Ta ilpipes .............................................. 397
Wa shing byhand .............................. ... 393
Wheels/r ims....................................... 397
Wi ndo ws <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 397
Wi per blades .......................................3 97
Car gotie- down rings ...............................1 04
Car pet(C are) ....... ....................................398
Chang eof addr ess .....................................24
Cha ngeof ow ner ship ................................ 24
Cha nging awheel
Pr eparation .......................................... 447
Ra ising theve hicle ........................... ... 448
Cha nging awheel
see Emerge ncy sparewheel
Chan ginggears ....... ................................. 144
Manually ..............................................1 44
Cha nging hubcap s.................................. 447
Cha racter ent ry
On theto uc hpad .................................. 275 Cha
rging
Bat tery (vehicle) ...................................4 11
USB port..............................................1 09
Chil dsaf etyloc k
Re ar door .............................................. 62
Re ar side windows <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 63
Chi ldseat
At tach ing (notes) ................................... 54
Basi cins tructi ons <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> .............49
Fr ont- passeng erseat (notes) ................. 60
LA TC H-type (ISOFIX )(ins talling) ............ 55
No teson risk sand dang ers ...................5 0
Secu ring on thefront passeng erseat ....6 1
Secu ring on there ar seat ...................... 59
To pTe ther ..............................................5 7
Child ren
Av oiding dangersin theve hicle .............5 0
Basi cins tructi ons <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> .............49
Speci alsea tbel tre tract or ........... .......... 55
Ch ock ........... ............................................ 446
St or ag elocation ..................................4 46
Cho ck
see Choc k Inde
x535

0049
Turn On theIgnit iontoRelease
th ePa rking Brak e................................ 491
0072 Vehicle Ready toDrive Swi tch
th eIgnit ionOffBef oreEx iting .............. 477
0077 Warning Tire Malfunction ............ 510
0077 Wheel Sensor(s) Missing ............ 509
Ac tiveBli nd Spo tAssi stCur rently
Un available SeeOper ator' sMan ual.....4 96
Ac tiveBli nd Spo tAssi stInoper ative.... 496
Ac tiveBr ak eAssi stFunctio nsCur‐
re ntl yLim ited See Operator's Man‐
ua l..... ............................... ...................5 04
Ac tiveBr ak eAssi stFunctio nsLim i‐
te dSee Oper ator's Manual .................. 505
Ac tiveDis tance AssistCur rently
Un available SeeOper ator' sMan ual.....4 99
Ac tiveDis tance AssistInoper ative..... .4 99
Ac tiveDis tance AssistNo wAv ailable
.. ...........................................................5 00 Ac
tiveLa ne Keeping AssistCur rentl y
Un available SeeOper ator' sMan ual.....4 95
Ac tiveLa ne Keeping AssistInopera‐
tiv e ...................................................... 495
Ac tivePa rking Assistand
PA RK TRONI CInoper ative See Opera‐
to r's Manua l...... .................................. 496
Ac tiveSt eer ing Assis tCur rentl y
Un available SeeOper ator' sMan ual.....4 93
Ac tiveSt eer ing Assis tInoperativ e.......4 94
Ac tiveSt eer ing Asst.Cur rentl y
Un available DuetoMultiple Emer‐
ge ncy Stops ......................................... 495
Ad aptiveHig hbeam Assis tCur rently
Un available SeeOper ator' sMan ual.....4 76
Ad aptiveHig hbeam Assis tIn oper a‐
tiv e .......................................................4 76
App lyBrak eto Shif tfr om 'P' ............... 483
Apply Brak eto Shif tto 'R' ................... 483 Appl
yPa rking Brak eRisk ofRo lling
Aw aySee Operator's Manua l..... ......... 486
Au xiliary Batt eryMal functi on.............. 484
Begi nning Emergency Stop .................. 494
Blind SpotAssis tCur rentl yUna vaila‐
ble See Opera tor's Manua l..... ............. 495
Blind SpotAssis tInoper ative..... .......... 495
Chec kTire Pressur eSoon .................... 511
Chec kTire Pressur eThen Restar t
Ru nFla tIndi cator <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> .........512
Cr uise Control Inoper ative.................. 500
Cr uise Control Off...............................5 00
Decr easeSpeed ................................... 511
Dr iver' sDoo rOp en &Trans miss ion
No tin PRisk ofVehicle Rolling Away ..483
Fr ont Passeng erAirbag Disabled See
Oper ator's Manual ...............................4 70
Fr ont Passeng erAirbag Enabled See
Oper ator's Manual ...............................4 71 54
0
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