2021 MERCEDES-BENZ CLS airbag

Occupant
safety Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0075 SRS Malfunct ionServic e
Required *T
herestra int system ismalfunct ioning(/page36). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Front LeftMalfunction
Service Required(exa mp le) *T
hecor responding restra int system ismalfunct ioning(/page36). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Left Side Curtain Airbag
Malfunction Service
Requ ired(exa mp le) *T
hecor responding windowcur tain airbag ismalfun ctionin g(/ page36). &
WARNIN GRisk ofinju ryor fata linj urydue toamalf unctionin thewindo wcur tain airbag
The windo wcur tain airbag mightbetrigg ered unin tentio nallyor might notbe trigg ered atall intheev ent ofan
acciden t. #
Have thewindo wcur tain airbag checkedand repair edimmediat elyat aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 34
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Fron tPassenger AirbagDis-
abled SeeOperator' sMan-
ual *T
hefront passeng erairbag andthefront passeng erknee airbag have been disabled eventh ough anadult oraper‐
son ofadult statur eis on thefront passeng erseat. Ifadditional forc es areapplied totheseat, thewe ight thesy s‐
te m 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.
A per son inthefront passeng erseat could then, forex am ple, com eint ocon tact with theve hicle's interior ,
especially ifth eper son issitt ing tooclose tothecoc kpit. #
Mak esur e,bo th bef oreand during thejour ney,that thest atus ofthefront passeng erairbag iscor rect. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Makesur eth at no obj ect sar etrapped underth efront passeng erseat. #
Chec kth est atus oftheaut omatic front passeng erairbag actuation (/page46). #
Ifneces sary,consu ltaqu alif ied spec ialistwo rkshop immediat ely.
Front Passeng erAirb ag
Enabl edSee Operator 's
Manu al *T
hefront passeng erairbag andthefront passeng erknee airbag willbeenabled whiletheve hicle isin mo tion inthe
fo llo wing situat ions:
R Even when ach ild, asmall adultoran obje ctwe ighin gless than thesy stem weight thre shold islocat edon the
fr ont passeng ersea t
R Even when thefront passeng erseat isno toccupied 34
2
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
The system mayde tect obje ctsorforc es that areaddin gto thewe ight applied totheseat. &
WARNIN GRisk ofinju ryor deat hwhen usingach ild restra int system while thefront passeng erairbag is
enabled
If yo usec ureach ild inach ild restra int system onthefront passeng erseat andthefront passeng erairbag is
enabled, thefront passeng erairbag candeplo yin theeve ntofan acci dent.
The child could bestru ck bytheairbag. #
Ensur e,bo th bef oreand during thejour ney,that thest atus ofthefront passeng erairbag iscor rect.
NEVER useare ar wa rdfacing child restra int onaseat protect edbyan ACTIVE AIRBAGinfront ofit,DE ATHor
SERIOU SINJU RYtotheCH ILD can occur . #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Makesur eth at no obj ect sar etrapped underth efront passeng erseat. #
Chec kth est atus oftheaut omatic front passeng erairbag actuation (/page46). #
Ifneces sary,consu ltaqu alif ied spec ialistwo rkshop immediat ely.
PRE-S AFEInoperat iveSee
Operator's Manual *
The PRE‑S AFE®
funct ionsaremalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 34
3

Ac
tiv eSte ering Assis t.............................1 78
Ac tivati ng/d eactiv ating ........... ............180
Ac tiveEmerg encyStop Assis t.............1 80
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 181
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>178
Sy stem limits ....................................... 178
Ac tiv eTr af fic Jam Assis t
Ac tivati ng/d eactiv ating ........... ............178
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>177
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>117
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 118
Ad diti ves.................................................. 333
En gine oil............................................ 333
Fu el ..................................................... 333
Ad diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
ADS PLUS dam ping system
see AIR BO DY CONTR OL Af
ter-sales service center
see ASSYSTPL US
Air bag
Re duced protect ion ...............................4 3
AIR BODY CONT ROL................................ 196
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 197
Sus pens ion <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 196
Air cond itioning menu
Callin gup ........................................ .... 128
Air distribut ion
Se tting ............................................ .....1 27
Se tting (MBU Xmul time diasy stem) ..... 129
Air freshen ersystem
see Perfume atomiz er
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air suspension
see AIRBODY CONTR OL
Air vents ................................................... 132
Ad jus ting (front) ............. .....................132
Ad jus ting (rea r) ............. .......................132 Air
vents
see Airvents
Ai r-condi tioningsystem
see Climat econ trol
Air -recir cula tion mode............................ 130
Air -water duct .......................................... 269
Ke eping free ........................................2 69
Airb ag....... ..................................................41
Ac tivati on ........... ...................................36
Fr ont airbag (driver ,fr ont passeng er)..... 41
Ins tallation locations .............................. 41
Knee airbag............................................ 41
Ov ervie w ................................................ 41
PA SSENGER AIRBAGind icat orlam p.....4 6
Pr otect ion ..............................................4 2
Sid eairba g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 41
Wi ndo wcur tain airbag ...........................4 1
Air flow
Se tting .................................................1 27
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system) 402
Index

All-wh
eeldrive
see 4MA TIC
Amb ientlighting
Se tting (mult imediasystem) ................1 19
Andr oidAuto
see Smar tphone integr ation
Animals Pets 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 tpr otection
Imm obiliz er.................................... ........ 83
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®
see Smar tphon eint egr ation
Assis tance systems
see Drivin gsaf etysy stem ASS
YSTPL US <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>263
Batt erydi sconne ctionpe riods .............2 64
Dis play ing theser vice duedate........... 263
Fu nctio n/no tes ................................... 263
Re gular maint enance work <0011001100110011001100110011001100110011001100110011001100110011
00110011> 263
Spec ialser vice requ iremen ts.......... .... 263
ATA (anti-thef tala rm system) .................. 83
Ac tivati ng/d eactiv ating theint erior
mo tion sensor ................................. ...... 85
Ar ming/ disarming theto w- aw ay
alar m.............................................. .......8 5
Dea ctivating thealar m.......................... 84
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>83
Fu nctio nof theint erior motion sensor ..85
The tow- aw ay alar mfun ction .......... .......8 4
AT TENTI ONASSIST <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 167, 169
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>167
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 169
Sy stem limit ations ........................... ....1 67
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 ........... ...............115
Au tomatic engine star t(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> .........141
Au tomatic engine sto p(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> .........141
Au tomatic fron tpass engerfr on tair‐
bag shutoff <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 44,46
Fu nctio nof theaut omatic front
passeng erfront airbag shutoff.............. 44
PA SSENGER AIRBAGind icat orlam p.....4 6
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 seat adjus tment
Se tting ............ .......................................92 Inde
x40
3

007A
Inoper ativeSee Oper ator's
Manua l..... ........................................... 375
0053 Inoper ative.... .............................3 76
: Intell. Light System Inoperativ e
... ............ ..............................................3 48
Á KeyNo tDe tected (red displ ay
messa ge).............................................3 45
Á KeyNo tDe tected (whit edis‐
pl ay messa ge).....................................3 45
0075 LeftSide Curtain Airbag Mal‐
fun ction ServiceRe quired (exa mp le) ...3 41
¢ Lowe ring <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ............371
ä Malfunction Drive at Max. 50
mp h..................................................... 370
: Malfunction SeeOper ator ’s
Manual ................................................ 346
Á ObtainaNe wKe y.......................3 44
ç Off...... ........................................3 64
00D9 Off...... ........................................3 62 0049
Parking Brak eSee Opera tor's
Manua l...... .......................................... 357
0077 PleaseCor rect Tire Pressur e...... 381
0049 Please Release Parking Brak e.... 360
00D9 Please WaitChar ging 48VBat ‐
te ry … <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 379
006F Rear Lef tBac kres tNo t
La tched (exa mp le) ...............................3 51
Á Replace KeyBat tery <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 344
003D SeeOperator's Manua l...... .........377
0075 SRSMalfunction Service
Re quired .............................................. 341
Ù Steer ing Malfunct ionIncreased
Ph ysical Effort See Operator's Man‐
ua l...... ................................................. 349
Ù Steer ing Malfunct ionStop
Immediat elySee Oper ator's Manual ...349
003D Stop Vehicle LeaveEngi neRun‐
ning <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ..378 003D
Stop Vehicle SeeOper ator's
Manual ................................................ 378
00CC Stop Vehicle Vehicle TooLo w ..... 370
ç Suspend ed<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 364
: SwitchOf fLig hts <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 347
: SwitchOn Hea dlamps ................ 347
0049 Turn On theIgnit iontoRelease
th ePa rking Brak e................................ 361
0072 Vehicle Ready toDrive Swi tch
th eIgnit ionOffBef oreEx iting .............3 49
00CC Vehicle Rising Please Wait.......... 371
00CC Vehicle Rising ............................. 371
0077 Warning Tire Malfunction ........... 382
0077 Wheel Sensor(s) Missing............ 380
Ac tiveBli nd Spo tAssi stCur rently
Un available SeeOper ator' sMan ual.....3 67
Ac tiveBli nd Spo tAssi stInoper ative.... 367
Ac tiveBr ak eAssi stFunctio nsCur‐
re ntl yLim ited See Operator's Man‐
ua l...... ................................................. 375 Inde
x409

Ac
tiveBr ak eAssi stFunctio nsLim i‐
te dSee Oper ator's Manual .................. 376
Ac tiveDis tance AssistCur rently
Un available SeeOper ator' sMan ual.....3 64
Ac tiveDis tance AssistInoper ative..... .3 64
Ac tiveDis tance AssistNo wAv ailable
.. ...........................................................3 64
Ac tiveLa ne Keeping AssistCur rentl y
Un available SeeOper ator' sMan ual.....3 68
Ac tiveLa ne Keeping AssistInopera‐
tiv e ...................................................... 368
Ac tivePa rking Assistand
PA RK TRONI CInoper ative See Opera‐
to r's Manua l..... ........... ........................ 372
Ac tiveSt eer ing Assis tCur rentl y
Un available SeeOper ator' sMan ual.....3 65
Ac tiveSt eer ing Assis tInoperativ e.......3 65
Ac tiveSt eer ing Asst.Cur rentl y
Un available DuetoMultiple Emer‐
ge ncy Stops ......................................... 365 Ac
tiveSt op &Go Assis tCur rently
Un available SeeOper ator' sMan ual.....3 66
Ac tiveSt op &Go Assis tInoper ative
See Oper ator's Manual ........................ 366
Ad aptiveHig hbeam Assis tCur rently
Un available SeeOper ator' sMan ual.....3 48
Ad aptiveHig hbeam Assis tIn oper a‐
tiv e ...................................................... 348
App lyBrak eto Shif tfr om 'P' ............... 354
Apply Brak eto Shif tto 'R' ................... 354
Appl yBr ak eto Shif tto Dor R............ ..354
Au xiliary Batt eryMal functi on.............. 356
Begi nning Emergency Stop .................. 365
Blind SpotAssis tCur rentl yUna vaila‐
ble See Opera tor's Manua l...... ............ 367
Blind SpotAssis tInoper ative...... .........367
Ca nno tSt artEn gin eSee Operat or's
Man ual................................................ 379
Chec kTire Pressur eSoon ...................3 83 Che
ckTire Pressur eThen Restar t
Ru nFla tIndi cator <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ........384
Cr uise Contr olInop erati ve <0011001100110011001100110011001100110011001100110011001100110011
00110011> 363
Cr uise Contr olOff<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 363
Decr ease Spee d<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 383
Dr iver' sDoor Open& Trans miss ion
No tin PRisk ofVehicle Rolling Away ..355
Engine CanNo wBe Started ................ 379
Fr ont Passeng erAirbag Disabled See
Oper ator's Manual ...............................3 42
Fr ont Passeng erAirbag Enabled See
Oper ator's Manual ...............................3 42
Hazard Warning Flashe rsMalfunc‐
tioning .................................................3 48
Mer cedes meconnect Services Limi‐
te dSee Oper ator's Manual .................. 376
N Pe rm anen tly Ac tiveRi sk ofRo lling
Aw ay <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 355
Only Shiftto 'P' when Vehicle isSta‐
tio nar y.................................................3 54 41
0
Inde x

Fi
rs t-aid kit(sof tsi ded) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> ....277
Flacon Inser ting/r emo ving........................ .....1 30
Flat tire ....... ..............................................277
Chan gingawheel ................................ 320
MOE xten ded tires ................................ 278
No tes ................................................... 277
TIREFIT kit...........................................2 79
Flat towing
see Tow- bar system
Floor mats................................................ 112
Fo ilco vering
Ra dar and ultrasonic sensors...............1 61
Fr ag rance
see Perfume atomiz er
Fr ee sof tware .......... .................................. 34
Fr eq uencies
Tw o-w ayradio ...................................... 328
Fr ont airbag (driver ,fr ont passeng er)...... 41
Fr ont passeng erseat
see Seat Fu
el ...........................................................3 33
Ad ditiv es........................................ .....3 33
E1 0 ....... ............................................... 332
Fu elreser ve <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 333
Ga sol ine <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 332
Qua lity (gas oline )<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 332
Re fuel ing ............................................. 152
Sul fur cont ent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 332
Ta nk cont ent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> .............333
Fu nction seat
see Door controlpanel
Fu ses ........................................................ 293
Bef orere placing afuse .................. ...... 293
Dashboar dfuse box............................ 295
Fu se assignment diagram...................2 93
Fu se boxin theengine compartmen t.. 294
Fu se boxin thefront -passen gerfo ot ‐
we ll................................................ ...... 295
Fu se boxin thetrunk ........................... 295
No tes .................................................. 293
Fu ses
see Fuses G
Gar agedoor opener
Clea ring thememor y........................... 158
Opening orclosing thedoor ................1 57
Pr ogr amming buttons .......................... 155
Re sol ving problems ............................. 157
Sync hronizi ngthero lling code .............1 57
Gasoli ne...................................................3 32
Gear shiftre comm endation .................... 150
Genuin epar ts............................................ 20
Genuin ewo od (Car e)...............................2 74
Glide mode ............................................... 151 H
Handbr ake
see Electr icpar king brak e
Handlin gch aract eristics (unus ual)....... 296
HAND S-FREEAC CESS ................................ 74
Hazar dwa rning light s.............................1 16
Hazar doussubstances
Inf ormation ............................................23 41
4
Inde x