service MERCEDES-BENZ CLA 2020 Workshop Manual

Af
tera ch ang ein tirepr essur e,awheel rotatio n
or atir ech ang e,or ifyo uha ve re-ins talled
wheels ortires, thetir epr essur eloss warning
sy stem has tobe restar ted(/ page430).
The tirepr essur eloss warning system does not
re place theneed toregular lych eckth etir epr es‐
sur e.
Sy stem limita tions
The system maybe impair edorma yno tfunc tion
par ticular lyin thefo llo wing situat ions:
R Incorrectly settir epr ess ure
R Sud den press urelos scau sed,fo rex am ple,
by afo re ign obje ctpene trating thetir e
R Steady pressur eloss inseveraltir es
The system has are strict ed ordel ayed func tion
par ticular lyin thefo llo wing situat ions:
R Poor ground condit ions,e.g.snowor grave l
R Driving with sno wch ains
R When adoptingave ry spor tydriving style
wit hhigh corner ing speeds orsudden accel‐
er ation
R Drivin gwit hahigh load Be
sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page42 4)
R Displa ymessag esabout thetir es
(/ page508)
Re star ting thetir epr essur eloss warning
sy stem
Re quirement s:
R The recomme ndedtirepr ess ureis cor rectl y
se tfo rth ere spectiv eoper ating status on
eac hof thefo ur wheel s(/ page42 4).
Re star tth etir epr essur eloss warning system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled. On-
boar dcom puter:
4 Service 5
Tires #
Swipe down wardson Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Tire Pressure ControlSystem Active
Restart messageis sho wninthemultifunc ‐
tion displa y.
Re star tth etir epr essur eloss warning system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled. #
Tobegin restar t,pr ess Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Tire Pressure NowOK?messag eis
sho wninthemultifunc tiondispla y. #
Select Yes. #
Toconf irm restar t,pr ess Touc hCon trol on
th elef t-hand sideofthesteer ing wheel.
The Run FlatIndic atorRestart edmessag eis
sho wninthemultifunc tiondispla y. 430
Wheels andtires

1
Haza rdand servicewa rning symbols
2 Refrig er ant filling capac ity
3 Applic ablestandar ds
4 PAGoil par tnum ber
5 Refrig er ant type
Symbo ls1 indica tethefo llo wing:
R Possible dangers
R Having maint enance workcar ried out ata
qu alif ied spec ialistwo rkshop Re
frig er ant filling capacity
Fi lling capacityforre frig er ant and PAGoil Model
Refrig er ant
All model s2 4.3±0.4 oz
(690 ±10 g) Model
PAGoil
All model s2 .8±0.4 oz
(80 ±10 g) Ve
hicl edata Ve
hicl edimens ions The
heightsspeci fied mayva ry as are sult ofthe
fo llo wing fact or s:
R Tire s
R Load
R Conditio nof thesuspension
R Option aleq uipment Height
whenopened Model
1 1
Height
when
opened
CL A250 72.6 in
(1 84 4mm)
CL A250 4MATIC Canada:
72 .5 in
(1 84 1mm)
US A:72.6 in
(1 84 4mm) 466
Tech nica lda ta

Disp
laymes sages Int
roducti on No
teson displa ymessag es
Displa ymessag esappear onthemultifunc tion
displa y.
Dis play messa geswit hgr aphic symbols aresim‐
plif ied intheOper ator's Manual andmaydif fer
fr om thesymbols onthemultifunc tiondispla y.
The multifunct iondispla ysho wshigh-pr iority dis‐
pla ymessag esinred. Cer tain displa ymess ages
ar eacc ompanied byawa rning tone.
Pl ea se act inacco rdanc ewit hth edispla ymes‐
sag esand follo wtheadditional notesin the
Oper ator's Manual .
Fo rsome display messa ges,asymbol willalso
be sho wn:
R Õ Further information
R 00A4 Hidedispla ymessag e
Yo ucan selectthedesir edsymbol byswiping
lef tor right onthelef t-hand Touc hCon trol.
Pr ess theÕ symbol tosho wfur ther information on
themultifunc tiondispla y.Press the00A4
symbol tohide thedispla ymessag e.
Yo ucan hide low- prior ity displa ymessag esby
pr essing theP buttonorthelef t-hand Touc h
Con trol. The displ aymessa geswill then be
st or ed inthemessag ememor y.
Re ctify thecause ofadispla ymessag eas
qu ickl yas possible .
High- prior ity displa ymess ages can notbe hid‐
den. Themultif unction displa ysho wsthese dis‐
pla ymessag escon tinuousl yuntil thecause of
th edispla ymessag ehas been rectif ied.
Cal ling up stor ed disp laymess ages
On -bo ardcom puter:
4 Service5
1Mess age
If th er ear eno displa ymessag es,NoMessages
will appear onthemultifunc tiondispla y. #
Scrollth ro ugh thedispla ymessag esby swip‐
ing upw ards ordown wardson thelef t-hand
To uc hCon trol. #
Toexitth emess agemem ory: press the
P button. 468
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Re cogni tionofare stra int system malfunct ion:
R The 0075 restra int system warning lam pdoes notlight upwhen theignition isswitc hedon.
R The 0075 restra int system warning lam plight sup con tinuousl yor repeat edlydur ing ajour ney. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
0075
Left Side Curta inAirbag
Malfu nction Service
Req uired(exa mp le) *T
hecor responding windowcur tainairba gis ma lfunctio ning(/page 34). &
WARNIN GRisk ofinju ryor fata linj urydue tomalfu nctions inthewindo wairbag
If th ewindo wairbag ismalfunct ioning,itmight betrigg ered unint entionall yor might notbe trigg ered atall in
th eeve ntofan acci dent with high deceler ation. #
Have thewindo wairbag checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. #
Consult aqu alif ied spec ialistwo rkshop immediat ely.
Front Passeng erAirb agDis-
ab led See Operator 'sMan-
ua l *T
hefront passeng erairbag andthefront passeng erknee airbag have been disabled eventh ough anadult oraper‐
son withan adult statur eis on thefront passeng erseat. Ifadditional forc es areapplied totheseat, thewe ight the
sy stem detects maybe toolow. &
WARNIN GRisk ofinju ryor fata linj urydue toadisable dfron tpasse nger airbag
If th efront passeng erairbag isdisabled, thefront passeng erairbag willnotbe deplo yedin theev ent ofan acci‐
dent andcann otper form itsintended protect ive func tion. 47
0
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
N Permanen tlyAct ive Risk
of Rolling Away *
While theve hicle isrolling orwhile youar edr ivin g,ne utral 005Chas been engage d. #
Tostop, depr essthebr ak epedal. #
Shif tth etra nsmiss iontopar kposition 005Dwhile theve hicle isstatio nary. #
Tocontinu edr ivi ng, select transm ission position 005B or005E.
Servi ceRequire dDo Not
Shif tGe ars VisitDeal er *T
hetransmission ismalfunctionin g.The transmission positioncannolong erbe chang ed. #
When transm issionposit ion005Bisselec ted, con sult aqu alif ied spec ialistwo rkshop anddonotch ang eth etra ns‐
mission position. #
Forall other transmission positions,parkth eve hicle safely. #
Consult aqu alif ied spec ialistwo rkshop orbreakdo wnservice.
Reversing NotPossible
Service Required *
The transmission ismalfunctioning. Thetransmission position005Ecanno tbe select ed. #
Consult aqu alif ied spec ialistwo rkshop.
Transmission Malfunction
Stop *
The transmission ismalfunctioning. Thetransmission shiftsto neu tral 005C automatical ly. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Depr essthebr ak epedal. #
Engage par kposition 005D. #
Consult aqu alif ied spec ialistwo rkshop.
Auxiliary BatteryMalfunc-
tion *T
heauxilia rybatt eryfo rth etra nsmiss ionisno long erbeing charge d. #
Consult aqu alif ied spec ialistwo rkshop. 48
4
Displa ymessag esand warning/ indic ator lam ps

Pa
rking ................................................ 201
Sy stem limit ations ...............................1 99
Ac tiv eSe rvice System PLUS
see ASSYST PLUS
Ac tiv eSpe edLimit Assist <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 177
Dis play <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 177
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>177
Ac tiv eSte ering Assis t.............................1 79
Ac tivati ng/d eactiv ating ........... ............181
Ac tiveEmerg encyStop Assis t.............1 83
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 181
Dis play sin theIns trument Display...... 183
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>179
Sy stem limit ations ...............................1 79
Ad aptiv ebr ak elig hts ..............................170
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>116
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 117
Ad diti ves.................................................. 462
En gine oil............................................ 462
Fu el ..................................................... 462 Ad
diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
Ad dres sbo ok
see Contacts
Ad jus tingthe balanc e/fader
Ad vanced soundsystem ......................3 83
Bur mes ter®
sur round soun dsy stem ....3 81
Ad jus tingthe bass,mid- rang eand
tr eble
Bur mes ter®
sur round soun dsy stem ....3 81
Ad jus tingthe mid- rang e,treble and
bass
Burmes ter®
sur round soun dsy stem ....3 81
Ad jus tingthe sound focus
Bur mes ter®
sur round soun dsy stem ...382
Ad jus tingtreb le,mid- rang eand bass
se ttings
Ad vanced soundsystem ......................3 82
Bur mes ter®
sur round soun dsy stem ....3 81
Ad vanced sound system
Ad jus ting thebalance/f ader............ ... 383 Ad
jus ting treb le,mid -rang eand bass
se tting s............ ................................... 382
Ca lling upthesound menu .................. 382
Inf ormation .......................................... 382
Switc hingvolume adjustment on/ off
.. ...........................................................3 82
Af ter-sales service center
see ASSYSTPL US
Air bag
Re duced protect ion ...............................4 2
Air cond itioning menu
Callin gup ............................................ 127
Air distribut ion
Se tting (mult imediasystem) ................1 27
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air vents ................................................... 129
Ad jus ting (front) ............ ...................... 129
Ad jus ting (rea r) ............ ........................ 129
Air vents
see Airvents Inde
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1

Callin
gup aspee d...............................1 71
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>170
Re quiremen ts:.....................................1 71
Sel ecting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 171
Se tting aspe ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 171
St or ing aspeed .................................... 171
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 171
Swi tching on<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 171
Sy stem limit ations ...............................1 70
Cup holde r....... ........................................ 106
Ins talling/ remo ving (cent erconsole) ...106
Re ar passe nger com partment .............1 07
Cus tomer Assist ance Center (CAC ).........2 7
Cus tomer Relat ions Depar tment .............2 7 D
Dam agede tection (parked vehicl e)...... .158
Dam ping adjus tment ...............................187
Dash board
see Cockpit
Dashboar dlighting
see Instrument clusterlig hting Dashc
am
Conf iguring these ttings ......................3 30
Dele tingavide ore cor ding <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 329
No tes .................................................. 328
Selecting aUSB device .................. ..... 329
St artin g/s topping videorecor ding ...... 329
Dat aacq uisitio n
Ve hicle ............................................. ..... 28
Data impor t/expor t................................ 286
Fu nctio n/no tes ................................... 286
Im por ting/e xporting ............................2 87
Data storage
Ele ctroni ccontr oluni ts ............. ............ 28
Onl ine services ............. ......................... 30
Ve hicle ............................................. ..... 28
Dat e
Se ttin gth etime anddateaut omati‐
call y................................................ ..... 282
Deactiv atingthealarm(ATA ).................... 86
Dealer ship
see Qualif iedspec ialistwo rkshop
Dec laration ofconf ormity
Wi reless vehicle component s......... .......2 5 Decor
ative fo il(cleaning instructions) ..394
Def initions (tiresand loading )...............4 40
De sig ns
Menu (on-boa rdcom puter) ..... ............. 218
Des tinat ion ...............................................3 14
Edi ting intermed iate des tinations ........ 304
Edit ingthepr ev ious destination s.........3 14
Ext ernal ............ ................................... 315
Qui ck-acce sstodes tination informa‐
tion ...................................................... 311
Sa ving (current vehicle position) ..........3 14
Sa ving asglobal favo rite <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 314
Des tinat ion entry<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 292
Ent ering 3wo rdaddr esse s.................. 297
En tering aPOI oraddress <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 292
Ent ering anintermed iate des tination ..304
En tering geo-coor dinates..................... 297
No tes .................................................. 292
Selecting acont act.............................. 297
Selecting aPOI .................................... 295
Selecting are cei veddes tination .........2 99
Selecti ngfrom favo rite s ......................2 98
Selecti ngfrom themap ....................... 298
Select ingprev ious destination s...........2 95 Inde
x53
7

Á
Don't Forget Your Key.................4 74
00B3 EngineOilLe velCann otBe
Mea sured <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>.....515
00B3 EngineOilLe velLo wStop Vehi‐
cle Turn Engi neOff............ ...................514
00B3 EngineOilPr ess ureSt op
Switc hOf fEngin e................................ 514
00B3 EngineOilRe duce OilLevel........ 513
0075 Front LeftMalfunction Service
Re quired (exa mp le) .............................4 69
00D4 FuelLevelLo w ............................ 482
00D4 GasCap Loose ...........................4 82
0025 Inoper ativeSee Oper ator's
Manu al....... ......................................... 502
00E5 Inoper ativeSee Oper ator's
Manu al....... ......................................... 503
007A Inoper ativeSee Oper ator's
Manu al....... ......................................... 504
0053 Inoper ative....... .......................... 506
0049 Intell.Ligh tSy stem Inoperativ e.. 476 Á
KeyNo tDe tected (red displ ay
messa ge).............................................4 73
Á KeyNo tDe tected (whit edis‐
pl ay messa ge)...................................... 473
0075 LeftSide Curtain Air bag Mal‐
func tion Service Required (exa mp le) ...4 70
ä Malfunction Drive at Max. 50
mp h..................................................... 493
0049 Malfunction SeeOper ator ’s
Manual .................................................4 75
Á ObtainaNe wKe y.......................4 72
ç Off..............................................4 99
00D9 Off....... .......................................498
0049 Parking Brak eSee Opera tor's
Manua l...... .......................................... 487
0077 PleaseCor rect Tire Pressur e...... 510
0049 Please Release Parking Brak e.... 490
Á Replace KeyBat tery <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 473
003D SeeOperator's Manua l...... ........506 0075
SRSMalfunction Service
Re quired .............................................. 469
Ù Steer ing Malfunct ionIncreased
Ph ysical Effort See Operator's Man‐
ua l...... ................................................. 477
Ù Steer ing Malfunct ionSee Oper‐
at or's Manual ....................................... 478
Ù Steer ing Malfunct ionStop
Immediat elySee Oper ator's Manual ....4 78
003D Stop Vehicle LeaveEngi neRun‐
ning <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011>.....507
003D Stop Vehicle SeeOper ator's
Manual ................................................ 507
ç Suspended ................................. 499
0049 SwitchOf fLights ........................ 476
0049 SwitchOn Hea dlamps ................ 475
0080 Trans .Oil Overheat edDrive on
wit hCar e.............................................4 85
0049 Turn On theIgnit iontoRelease
th ePa rking Brak e................................ 491 In
de x 539

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..... .......................... ........................ 504
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
Haza rdWa rning Flashe rsMalfunc‐
tioning .................................................4 76
Mer cedes meconn ectServices Limi‐
te dSee Oper ator's Manual .................. 505 54
0
Inde x

N
Pe rm anen tly Ac tiveRi sk ofRo lling
Aw ay <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 484
Only Shiftto 'P' when Vehicle isSta‐
tio nar y.................................................4 83
Pa rking LockIno per ativ eAppl yPa rk‐
ing Brak e.............................................4 85
Pla cetheKe yin theMar kedSpace
See Oper ator's Manual ........................ 474
PRE-S AFEInoper ativeSee Oper a‐
to r's Manua l...... .................................. 472
Re versing NotPo ssible Service
Re quired .............................................. 484
Ru nFla tIndi catorInop erati ve .............. 512
Ser vice Required Do NotShif tGear s
Vi sit Dealer .......................................... 484
Te ac hin gin Trans miss ionCom plete .... 486
Te ac hin gin Trans miss ionOper ate
Sel ectorLeverAppl yBr ak efo rXX s
Ris kof Vehicle Rolling Away ................ 485Ti
re Press. Monit orCur rently
Un available .......................................... 508
Ti re Press. Monit orInopera tive ........... 508
Ti re Pressur eMonit orInopera tiveNo
Wheel Sensors .................................... 508
Ti re sOv erheat ed..................................5 11
To Dese lect Por N, Dep ress Brak e
and StartEn gin e.................................. 483
To switc hengine off,pr ess and hold
St art/ Stop butt onforat lea st3sec‐
onds orpress 3times. .........................482
Tr af fic Sign AssistCur rently Unavail‐
able SeeOperat or'sMan ual................ 496
Tr af fic Sign AssistInoper ative..... ........ 496
Tr ans miss ionMalfun ction .................... 485
Tr ans miss ionMalfun ction Service
Re quired .............................................. 486
Tr ans miss ionMalfun ction Stop ........... 484
Displa yon thewindsh ield
see Head- upDis play Dis
tance control
see ActiveDis tance AssistDIS TRONI C
Di stance recor der
see Trip dis tance
DI ST RO NIC
see ActiveDis tance AssistDIS TRONI C
Do or
Ch ild sa fety lock (rear door) ...................6 1
Loc king (emerg encykey) .......................7 2
Opening (from theinside) ......................6 9
Un loc kin g(emer gency key) .................... 72
Un loc kin g(fr om theinside) ...................6 9
Door controlpan el.....................................1 6
DO T,Tire Iden tificat ionNumbe r(TI N) ... 436
Dr aw bar
see Tow- bar system
Dr inking anddriving ................................ 134
Dr ink shold er
see Cup holder
Dr ive Awa yAssis t.... ................................ 204
Dr ive position
Inser ting.............................................. 144 Inde
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