heating MERCEDES-BENZ E CLASS 2021 User Guide

#
Adjus tth etir epr essur ewher eneces ‐
sar y. Ti
re pressur ewhic his toohigh ortoolow can:
R Shor tenth eser vice life of thetir es.
R Cause increased tiredamag e.
R Adversely affect drivi ng charact eristic sand
th us drivin gsaf ety, e.g. due tohydroplaning. &
WARNIN GRisk ofacci dent dueto too
lo w atir epr essur e
Ti re swit hpr essur eth at istoolow can over‐
heat andburstas acon sequenc e.
In addit ion,th ey also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. #
Avoid excessiv elylow tirepr essur e. Ti
re pressur ewhic his toolow can cause:
R Tire faults asare sult ofoverheating
R Impair edhandling charact eristic s
R Irre gular wear R
Incr eased fuelconsum ption &
WARNIN GRisk ofacci dent dueto too
high atir epr essur e
Ti re swit hexc essiv elyhigh pressur ecan
bur st.
In addi tion, they also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. #
Avoid excessiv elyhigh tirepr essur es. Ti
re pressur ewhic his toohigh cancause:
R Increased brakin gdis tance
R Impaired handl ing charact eristic s
R Irre gular wear
R Impair eddrivin gcom fort
R Sus ceptibility to damag e &
WARNIN GRisk ofacci dent dueto repea‐
te dpr essur edr op inthetir es
The wheels, valves ortires could bedam‐
ag ed.
To olow atir epr essur ecan lead tothetir es
bur sting. #
Examine thetir es forfo re ign obje cts. #
Chec kwhe ther thetir ehas apunct ure
or theva lve has aleak . #
Ifyo uar eunab leto rectify thedamag e,
con tact aqu alif ied spec ialistwo rkshop. Yo
ucan find spe cifica tions forth etir epr essur e
fo rth eve hicle's fact or y-ins talled tires on thefo l‐
lo wing labels:
R Tire and Loadi ngInfo rm atio nplacar don the
B‑pil larof your vehicle (/page31 7).
R Tire pressur eta ble ontheinside ofthefuel
fi ller flap (/ page31 2).
Obse rveth emaximum tirepr essur e
(/ page323). Wheels
andtires 31
1

as
wellon thego vernment courseasatir egr a‐
ded 100.
The relativ eper form anc eof tires depen dsupon
th eactual conditions oftheir use, howe ver,and
ma ydepar tsign ifican tly from thenor mdue to
va riatio nsindrivin ghabit s,ser vicepr act icesand
dif fere nces inroad charact eristic sand climate
con dition s.
Tr actio ngr ade &
DANG ER Risk ofacc iden tdue toinade‐
qu atetract ion
The tract ion grade assig nedtothis tireis
based onstra ight -ahead brakin gtract ion
te sts. #
Alw aysadap tyo ur drivin gst yle and
dr ive at aspeed tosuit thepr ev ailin g
traf fic and weather condition s. *
NO
TEDama getothedr ivet ra in from
wheelspin #
Avoid wheelspin. The
traction grades, from highes tto lowe st,ar e
AA ,A, Band C.Tho segrad es repr esent thetir e's
ability tostop onwetpa vement asmeasu red
unde rco ntro lled condition son spec ified govern‐
ment test sur faces ofasp haltand concr ete. A
tir emar kedC ma yha ve poor traction perform ‐
anc e.
Te mp eratur egr ade &
WARNIN GRisk ofacci dent from tire
ove rheating andtirefa ilur e
Ex cess ive speed, underinflation ,or exc essiv e
loading, either separ atelyor incombin ation,
can cause excessiv eheat build-up andpossi‐
ble tirefa ilur e. #
Obser vethere comme ndedtirepr es‐
su re. #
Regular lych eckth epr essur eof all the
tir es . #
Adjus tth etir epr essur e,ifneces sary. The
temp eratur egr ades areA (the highes t),B
and C,repr esent ingthetir e's resis tance tothe
ge ner ation ofhea tand itsability todissipat e heat
when tested under controlled conditions on
a specif iedindoor laborator yte st wheel. Sus‐
ta ined hightemp eratur ecan cause themat erial
of thetir eto deg ener ateand reduce tirelife, and
exc essiv ete mp eratur ecan lead tosudden tire
fa ilur e.The grade Ccor responds toaleve lof
per form anc ewhic hall passe nger car tires mus t
mee tunde rth eFe der alMo torSaf etySt andar d
No .10 9. Grade sB and Arepr esent higher leve ls
of per form anc eon thelabor ator yte st wheel
th an theminimum requ ired bylaw. DO
T,Tire Iden tificat ionNumbe r(TI N) US
tirere gulations stipulat eth at eve rytire man‐
uf actu reror retrea de rmu stimprint aTIN inor
on theside wallof eac htir epr oduced. 322
Wheels andtires

Ha
ve thebr ak efluid regular lyreplaced ata
qu alif ied spec ialistwo rkshop.
Onl yuse abr ak efluid appr ovedby Mer cedes-
Benz accor dingtoMB-F reigabe orMB- Appr oval
33 1.0. Co
olan t No
teson coolant
Obser vetheno teson oper ating fluids
(/ page34 4). &
WARNIN G‑Ri sk offire and injuryfrom
ant ifreez e
If ant ifreez ecom esintocon tact with hot
com ponent partsintheengine compart‐
ment ,it ma yignit e. #
Allo wtheengine tocool down before
ad ding anti freeze . #
Makesur eth at no ant ifreez espills out
ne xt to thefiller open ing. #
Thor oughl yclean offan yant ifreeze
fr om com pone ntpar tsbef orest ar tin g
th eve hicle. *
NO
TEDama gecau sed byinc orrect cool ‐
ant #
Onlyus ecool antthat has been pre‐
mix edwithth ere qu ired ant ifreeze pro‐
te ction.
Inf ormati ononcool antisavailable atthefo l‐
lo wing locations:
R IntheMer cedes- BenzSpecif ication sfo r
Oper ating Fluids 310.1
- Athttps: //bevo.mer cedes-b enz.com
- IntheMer cedes- BenzBeVoapp
R Ataqu alif ied spec ialistwo rkshop *
NO
TEOverhea ting athigh outsid ete m‐
per atur es If
an inapp ropr iat ecoolant isused, the
engine cooling system isno tsuf ficie ntlypr o‐
te cted agains tov erheating andcorrosion at
high outside temp eratur es. #
Alw aysuse coolant approvedby
Mer cedes-Ben z. #
Obser vetheins truction sin the
Mer cedes-Ben zSpecif ications forOper‐
ating Fluids310.1. Ha
ve thecoolant regular lyreplaced ataqu alif ied
spec ialistwo rkshop.
Pr opor tionofantifr eezeconcen trat ein the
engine cooling system:
R Aminimum of50% (antifr eezeprotect ion
do wn toappr oximat ely-3 5°F (-37°C))
R Amaxim umof55% (antifreeze protect ion
do wn to-49°F (-45°C))
Co olant capacity Mode
lC apacity
E 450 4MATIC 13.7 US qt
(1 3.0 lite rs)
All other models 14.8 US qt
(1 4.0 lite rs) 34
8
Tech nica lda ta

Ve
hicl e Dis
playmessag es
Possible causes/conseq uencesand0050 0050
Solutions
0072 Vehicle ReadytoDrive
Switc hthe Ignit ionOff
Before Exiting *Y
ouarelea ving theve hicle when itis in are ady -to- dr ive st at e. #
When youlea vetheve hicle, switchof fth eignition ,secur eth eve hicle agains tro lling away and taketh eSmar t‐
Ke ywit hyo u. #
Ifyo udo notlea vetheve hicle, switchof fth eelectr icalconsumer s,e.g. theseat heating. Other wise, the12 V
batt eryma ydisc hargeand itwill then be possible tostar tth eve hicle onlywit hth eaid ofasecon dbatt ery
(s ta rting assis tance) .
Ù Stee ringMalfunctio n
Incre ased Phy sical Effor t
See Operator'sManua l *T
hepowe rst eer ing assis tance isma lfunctio ning. &
WARNIN GRisk ofan acci dent dueto altered steer ing charact eristic s
If th epo we rassi stanc eof thesteer ing fails par tiall yor com pletely,yo uwill need touse morefo rc eto steer . #
Ifsaf esteer ing ispossible, drive on car efully . #
Visit orconsult aqu alif ied spec ialistwo rkshop immediat ely. Ù
Steer ingMalfunction Stop
Imme diate lySee Opera-
tor's Manua l *T
hesteer ing ismalfunct ioning.Steer ing capability issignif icantlyim pair ed. &
WARNIN GRisk ofacci dent ifsteer ing capability isim pair ed
If th esteer ing does notfunc tion asintended, theve hicle's operating safetyis jeopar dized. Di
spla ymes sagesand warning/ indic ator lam ps 36
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Consult aqu alif ied spec ialistwo rkshop.
Stop Vehicle LeaveEngine
Running WaitTransmission
Cooli ng *T
hetransmission isove rheating. Pullingaway ma ybe temp orarily im pair edornotpossible. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng. #
Lea vetheengine running . #
Waitunt ilth edispla ymessag edisappear sbef orepulling away.
Auxi liar yBatte ryMa lfunc-
tio n *T
heauxilia rybatt eryfo rth etra nsmiss ionisno long erbeing charge d. #
Consult aqu alif ied spec ialistwo rkshop. #
Untilthen, alwaysselect parkposition 005Dmanually beforeyo uswit choffth eengine. #
Beforelea ving theve hicle, apply theelectr icpar king brak e. 368
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0077 Warning TireMalfunct ion *T
hetirepr essur ein one ormor etir es has dropped suddenly .The wheel position willbedispla yed. &
WARNIN GRisk ofan acci dent from drivi ng with aflat tire
R The tires ma yove rheat and bedamag ed.
R The driving charact eristic sas wellas thesteer ing and braking charact eristic sma ybe great lyim pair ed.
Yo uco uld then lose control of theve hicle. #
Donotdr ive wit haflat tire. #
Donotexc eed themaximum driving distance perm issible inemer gency mod ewi th aflat MOE xtend edtire. #
Obse rveth eno teson flat tires. No
tesin theeve ntofaflat tire(/ page29 0). #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir es.
Tires Overheat ed *A
tle as tone tireisov erheating. Theaffect ed tires aredispl ayed inred. At temp eratur esclose tothelimit value, the
tir es aredisp laye din yello w. &
WARNIN GRisk ofan acci dent from drivi ng with ove rheat edtires
Ov erheat edtires can burst. #
Reduce speed sothat thetir es cool down. 39
4
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Decr ease Speed *A
tle as tone tireisov erheating. Theaffect ed tires aredispl ayed inred. At temp eratur esclose tothelimit value, the
tir es aredisp laye din yello w. &
WARNIN GRisk ofan acci dent from drivi ng with ove rheat edtires
Ov erheat edtires can burst. #
Reduce speed sothat thetir es cool down. Ti
re pres sur elo ss wa rning system Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
Check TirePressure Soon *C
anada only:
The tirepr essur eloss warning system has detected asig nifica ntlos sof press ure. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
R The tires can burst.
R The tires can wearexc essiv elyand/or unevenly.
R The driving charact eristic sas wellas thesteer ing and braking maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. Displa
ymessag esand warning/ indic ator lam ps 395

Pr
ogr amming buttons .......................... 166
Re sol ving problems ............................. 168
Sync hronizi ngthero lling code .............1 68
Gasol ine...................................................345
Gear shiftre comm endation .....................1 61
Genuin epar ts............................................ 20
Genuin ewo od (Car e).............................. 286
Glid emod e...............................................1 61
Glo vebox
Air vent <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 143 H
Handbr ake
see Electr icpar king brak e
Handlin gch aract eristics (unus ual)....... 309
HAND S-FREEAC CESS ................................ 76
Hazar dwa rning light s.............................1 23
Hazar doussubstances
Inf ormatio n....... .....................................23
Head restra int
Fr ont (adjus tingmechanicall y).............. 95
Fr ont (luxur yhead restra int ).......... ........ 96 Re
ar (installin g/remo ving) .....................9 7
Re ar passe nger com partment
(adj ustin g) .............................................9 7
Head-up Display...... .................................231
Ad jus ting disp lay el eme nts(on-bo ard
com puter) ..... ................................... .... 231
Ad jus ting thebr ightn ess(on-boar d
com puter) ....................................... ..... 231
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>230
Menu (on-bo ardcom puter) ..... .......... ... 231
Oper ating thememor yfunc tion ..........1 05
Se tting theposition (on-boar dcom‐
put er) ............................................. ...... 231
Switc hingon/off........................... ...... 232
Headla mps
see Automatic driving lights
Headlin er(car e)....................................... 286
Heating see Climat econtr ol
Help call
see Mercedes-Benz emergencycallsystem
High beam
Ac tivati ng/d eactiv ating ........... ............122 High-b
eamflasher ................................... 122
High-be amheadlam ps
Ad aptiveHig hbeam Assis t...................1 26
Ad aptiveHig hbeam Assis tPlus ............ 127
Highw aymode .........................................125
Hill star tassi st<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 178
HOLD functio n...... ................................... 177
Fu nctio n/no tes ................................... 177
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 177
Home screen (media display)
Ov ervie w ...... ....................................... 234
Hood Opening/clo sing.................................. 275 I
Iden tificat ionplate
Engi ne............. .................................... 342
Re frig er ant .......................................... 349
Ve hicle ................................................ 342
Ignition Switc hingon(Start/S topbutt on) ........ 144
Ignit ionkey
see Smar tKey 428
Index

Oper
ator's Manua l(digital) ....................... 18
Op timiz edacceler ation........................... 148
Ac tivati ng ........... ................................. 148
Ov erhead controlpanel
Ov ervie w ................................................ 12 P
Pa int code ................................................ 342
Pa intw ork(cleaning instructions) .........2 83
Pa nel heating
Se tting .................................................1 01
Pa nic alar m................................................ 67
Ac tivati ng/d eactiv ating ........... ..............67
Pa nor ama roof wit hpo we rtil t/s lidin g
pane l
see Sliding sunroo f
Pa rk pos ition
Inser ting<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> ...........159
Sel ecting automatical ly<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 159
Pa rking
see Elec tric par kingbr ak e Pa
rking aid
see Parking AssistPA RK TRONI C
Pa rking Assis tPA RK TRONI C<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 215
Ac tivati ng ........... ................................. .218
Ad jus ting warning tones <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 219
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>215
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 218
Sy stem limit ations ........................... ....2 15
Pa rking assis tance systems
see ActivePa rking Assist
Pa rking brak e
see Elec tric par kingbr ak e
Pa rking foran extended period .............. 171
Pa rking light s...........................................1 21
Pa rking posit ion
Ex terior mir rors <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 135
St or ing theposition ofthefront -
passeng eroutside mirrorusi ng
re ve rsege ar .................................... .....1 35
PA SSEN GERAIRBAGstatus displa y
see Automatic front pass engerfront
airb agshut off Pa
yload
Calculat ionexam ple .............................3 19
De term inin gth emaximum ...................3 18
Pe rfume
see Perfume atomiz er
Pe rfume atomizer .................................... 141
Inser ting/r emoving theflacon .............1 41
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 140
Pe rfume vial
see Perfume atomiz er
Pe riod out ofuse
Ac tivati ng/d eactiv ating standb y
mode ...................................................1 72
St andb ymode function ........................ 171
Pe rm itted towing methods .....................3 01
Pe ts inthe vehicl e...... ...............................64
Plas tictrim (Car e)................................... 286
Po we rcl os ingfun ction
Doo r............ ............. .............................72
Po we rsupp ly
Swi tching on(Start/S topbutt on) ........ 144
Po we rwa sher (care)...............................2 83 43
4
Inde x

MOExt
ended tires ................................ 290
No ise ...................................................3 09
No teson installing .............................. 329
Ov ervie wof tirelabeling ...................... 321
Re mo ving ............................................ 336
Re placing ...... .............................. 329, 333
Re star tin gth etir epr essur eloss
wa rning system .............................. ...... 316
Re star tin gth etir epr essur emonit or‐
ing system ...........................................3 15
Ro tating ........... ........... ...................... ...332
Sel ecti on ........... ..................................329
Sno wch ains ........................................ 310
Spee dra ting ........... .............................324
St or ing ................................................ 332
Te mp eratur egr ade .............................. 321
Ti re and Loadi ngInfo rm atio nplacar d.. 317
Ti re charact eristic s........................ ...... 324
Ti re pressur e(no tes) ............................3 10
Ti re pressur eloss warning system
(funct ion)............................................. 316
Ti re pressur emonit oring system
(funct ion)............................................. 313
Ti re pressur eta ble .......................... .....3 12
Ti re Qua lityGradi ng .......... ................... 321
Ti re size designation ............................3 24 TIREFIT
kit...........................................2 92
Tr act ion grade ................................ ...... 321
Tr ead weargrade ............................ .....3 21
Un usual handlingch aract eristic s........ 309
Wi -Fi
Se tting ................................................ .243
Wi ndo wcur tain airba g............................. 42
Wi ndo ws
see Side windo ws
Wi ndo ws(car e)........................................ 285
Wi ndshield ........................................1 31,13 7
Defr osting ............. ...............................137
Infr ared reflect ive ........................... ..... 136
Ra dio wav es........................................1 36
Re placing thewiper blades .................. 131
Wi ndshield
see Windsh ield
Wi ndshield heater................................... 142
Wi ndshield heating
see Windsh ield hea ter
Wi ndshield washer fluid .........................3 49
No tes .................................................. 349 Wi
ndshield washer system
To pping up...........................................2 81
Wi ndshield wipers
Ac tivati ng/d eactiv ating ........... ............131
Re placing thewiper blades .................. 131
Wi nter oper ation
Sno wch ains ........................................ 310
Wi per blades
Ca re <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 285
Re placing .............................................1 31
Wi reless chargin g
Fu nctio n/no tes .................................... 118
Mobile phone ....................................... 119
Wi reless vehicl eco mp onent s
Dec laration ofcon form ity ...................... 25
Wo rkout prog ram
Ov ervie w ............................................... 99
Wo rkshop
see Qualif iedspecialis two rkshop Inde
x44
5