2020 MERCEDES-BENZ S-CLASS Owner's Manual

&
WARNIN GRisk ofacci dent duet ot he
specif iedtirep ressur enotbeing reac hed
If th es pecif iedtirep ressur eisn otreac hed
af te rab rief drive, thet irei st oo badly dam‐
ag ed. The tires ealant cannotrepair thet ire
in this ins tan ce.
Dama gedt ires and tirep ressur ethat istoo
lo wc ansign ifican tlyi mp air theb raking prop‐
er ties and theh andling charact eristic s. #
Donotc ontin ue drivin g. #
Con sult aqualif iedspec ialistworks hop. In
cases suchasthe one mentioned above,c on ‐
ta ct an author ized Mercedes-B enzCent er.O r
call 1-80 0-FOR-MER Cedes (intheU SA)or
1-8 00- 387-0 100( inCanada). #
Cor rect thet irep ressur eifiti ss tilla tleas t
13 0k Pa(1.3 bar/1 9psi).Y ou will find the
va lues intheT irea nd Loadi ngInfo rm atio n
placar donthe B-pillar onthed rive r's side or
in thet irep ressur etable inthef uel filler flap. #
Toincr ease thet irep ressur e:swit chon
th et irei nflation compressor . #
Toreduce thetirep ress ure: press press ure
re lease button1 next to manome ter2 . #
When thet irep ressur eisc orrect, unscr ew
th ef illing hose from thev alveo fthe sealed
tir e. #
Screw thev alvec ap ont othe valveo fthe
sealed tire. #
Pull thet ires ealant bottle out ofthet ire
inf lation compressor .
The filling hose stay so nthe tires ealant bot‐
tle. #
Drivet ot he near estq ualif iedspec ialistwork‐
shop andhave thet ire, tires ealant bottle
and filling hose replaced ther e. Bat
tery (vehicle) No
teso nthe 12Vb attery &
WARNIN GRisk ofan acci dent duet o
wo rkcar ried out incor rectly ontheb at‐
te ry
Wo rkcar ried out incor rectl yo nthe batt ery
can, fore xamp le,lead toas hor tcircuit .This
can lead tofunction restrictions insaf ety-re l‐
eva ntsystems, fore xamp lethel ighting sys‐
te m, ABS (anti-lo ckbraking system) orESP®
(Elect ronic Stabilit yProgram). Theoperating
saf etyo fyour vehicle mayberestrict ed.
Yo uc ouldlose contro lo fthe vehicle inthe
fo llo wing situat ions:
R when brakin g
R inthee vent ofabrupt steer ing maneuv ers
and/or whenthev ehicle's speedisno t
adap tedt ot he road con dition s #
Inthee vent ofas hortcir cui tora sim i‐
la ri nci dent, contactaqualif iedspec ial‐
is tw orks hop immediat ely. Br
eakdo wnassis tance 43
1

#
Donotc onti nue drivi ng. #
Alw aysh ave workon theb atteryc arried
out ataq ualif iedspec ialistworks hop. R
Further information onABS (/page201)
R Further information onESP ®
(/ page202)
Fo rs afet yr easons, Mercedes- Benzrecomme nds
th at youo nly use batteries whic hhave been tes‐
te da nd appr ovedfor your vehicle byMer cedes-
Benz .These batteries prov ide increased impact
pr otect ion topreve ntvehicle occupants from
suf fering acidb urns sho uld theb atteryb ed am‐
ag ed inthee vent ofan acci dent.
Al lv ehic lesexceptv ehic leswithal ithium-
ion batt ery &
WARNIN GRisk ofexplosion duetoelec‐
tr os tatic charge
Ele ctrostatic charge can causespa rksw hich
ma yignit ethe highl yflammable gasm ixtur e
in theb attery. #
Todisc hargeanye lectros tatic charge
th at ma yhave built up,touc ht he metal ve
hicle body beforeh andling theb at‐
te ry. The
highly flammab legasm ixtur eisc reated
while theb atteryi sc har ging andduring star tin g
assis tance. &
WARNIN GDang erofchemical burns
fr om theb atterya cid
Batt erya cid iscaus tic. #
Avoid cont actwiththe skin, eyes or
clo thing. #
Donotlean overthe batt ery. #
Donotinh aleb attery gases. #
Keep childr enaway from theb attery. #
Immedia tely rinse batter ya cido ffthor‐
oughl ywithp lenty ofclean watera nd
seek medica lattention immediately . All
vehicl es
+ ENVIR
ONMENT ALNOTEEnvironme ntal
da ma gecau sed byimproper disposal of
batt eries Bat
teries con tain polluta nts. Itis
illeg alto dispose ofthem withthe household
ru bbish. #
Dispose
ofbatt eries inan
en vironmen tallyr esponsibl emanner .
Ta ke disc hargedb atteries toaq ualif ied
spec ialistworks hop ortoac ollec tion
poin tfor used batteries. If
yo uh ave todiscon nectthe 12 Vb attery, con‐
ta ct aq ualif iedspec ialistworks hop.
Com plyw iths afet yn otes and take protect ive
measur eswhen handling batteries. 432
Breakdo wnassis tance

Risk
ofexplosion. Fir
e,open flames andsmokinga re
pr ohibi tedw hen handling theb attery.
Av oid creating sparks. Ele
ctroly teor batt erya cid iscor ro‐
siv e.Avoid cont actwiththe skin, eyes
or clo thing. Wearsuit able protect ive
clo thing, inpar ticular glove s,an
apr onand aface mask.Immedia tely
ri nse electr olyteor acid splashes off
wit hc lean water.Con sult adoctorif
necessar y. We
arsaf etyg lasses. Ke
ep childr enaway. Obser
vethis Opera tor's Manua l.
Obser vethef ollo wing ifyo ud on otintendt ou se
th ev ehicle overane xtende dperiodo ftime:
R Activates tandb ymode .
R Alternat ivel y: con nectthe batt eryt oab at‐
te ry charge ra pprove db yM ercedes-Ben zor
consult aqualif iedspec ialistworks hop to
discon nectthe batt ery. No
teso ns tarting assis tan ceando nchar g‐
ing the1 2Vb attery Ve
hicl eswith alithium-ion battery
When chargin gthe batt erya nd dur ing star tin g
assis tance, alwa ys use thej um p-startconne c‐
tio np oint inthee ngine compartmen t. *
NO
TEDama ging theb atteryt hrough
ove rvolt age When
chargin gu singab atte ry charge rw ith‐
out amaximu mcharging voltag e, theb attery
or thev ehicle electronics maybed amag ed. #
Onlyusebatt eryc harg ersw itham axi‐
mum chargin gvoltageo f14.8 V. All
other vehicl es
When chargin gthe batt erya nd dur ing star tin g
assis tance, alwa ys use thej um p-start connec‐
tion pointinthee ngine compartmen t.
* NO
TEDama ging theb atteryt hrough
ove rvolt age When
chargin gu singab atte ry charge rw ith‐
out amaximu mcharging voltag e, theb attery
or thev ehicle electronics maybed amag ed. #
Onlyusebatt eryc harg ersw itham axi‐
mum chargin gvoltageo f14.8 V. Br
ea kdo wnassista nce 43
3

&
WARNIN GRisk ofexplosion from hydro‐
ge ng asign iting
Ab atteryg ene ratesh ydr ogen gasd uring the
ch argin gp roce ss. Ifth er ei sas hortcircuit or
spar ksstar tt of orm, ther ei sad angerofthe
hy drog en gasigniting. #
Mak esuret hat thep ositiv eterminal of
th ec onnect edbatt eryd oes notc ome
int oc ontact with vehicle parts. #
Neverp lace me talo bje ctso rtools ona
batt ery. #
When connectin gand disconn ectingthe
batt ery, yo um usto bse rvet he descr i‐
bed order fort he batt eryc lam ps. #
When giving star tin ga ssis tance, alwa ys
mak esuret hat youo nly con nectbat‐
te ry term inals withident icalpolar ity. #
Dur ing star tin ga ssis tance, youm ust
obse rvet he descr ibedorder forc on‐
necting anddisconnecting thej um per
cables. #
Donotc onnect ordiscon necttheb at‐
te ry cla mp sw hile thee ngine isrunning . &
WARNIN GRisk ofexplosion during
ch argin gp roce ss and star tin ga ssis tance
Dur ing thec har ging process andstar tin g
assis tance, theb atterym ayrelease anexplo‐
siv eg asmix ture. #
Avoid fire ,o pen flames ,creating spar ks
and smoking. #
Mak esuret hat ther ei ss ufficie ntventi‐
la tio nd uringt he chargin gp roce ss and
dur ing star tin ga ssis tance. #
Donotlea no verab attery. &
WARNIN GRisk ofexplosion from afro‐
zen battery
Ad ischar gedb atterym ayfreeze attemp era‐
tur es slightl yabove orbelo wfreezing point.
Dur ing star tin ga ssis tance orbatter yc harg‐
ing, batteryg as ma ybereleased. #
Alw ayst hawaf roze nb atte ry out firs t
bef orec harging itor per form ing star t‐
ing assis tance. If
th ei ndicat or/warning lampsinthei nstrument
clus terd on otlight up atlowt em per atur es,itis
ve ry likelyt hat thed ischar gedb atteryh asfro‐
zen .Int his case youm ayneither jump-start the
ve hicle norcharge theb attery.
The service lifeo fab atteryt hat has been
th awe dmaybe dramaticall yshor tened .The
st ar tin gc har acteristics maybeimp aired, espe ‐
ciall yatlow temp eratur es.
It is recomme ndedthat youh ave athawe db at‐
te ry checkeda taq ualifiedspec ialistworks hop.
Plug-in hybrid: besur etoo bser vethen otes in
th eS upplement .Other wise, youm ayfailto rec‐
ogni zedangers.
Al lv ehic les
* NO
TEDama gecau sed bynum erou so r
ex tende dattem ptst os tart thee ngine Nu
me rous orextende dattem ptst os tart the
engine maydamag ethe cat alytic converter
due tonon-co mbusted fuel. #
Avoid numer ousand extende dattem pts
to star tt he engine. 43
4
Breakdo wnassis tance

Obser
vethef ollo wing points during star tin g
assis tance and when chargin gthe batt ery:
R Onlyuseundamag edjum per cables/c harg‐
ing cables withas ufficie ntcross -secti onand
insu late dt erminal clamps.
R Non-insulat edpar tsof thet erminal clamps
mus tnotcom eintoc ontac twitho ther me tal
par tswhile thej um per cable/c harging cable
is con nect edtotheb attery/jum p-start con‐
nectio npoint.
R The jumper cable/c harging cable mustnot
com eintoc ontac twitha nypar tswhic hmay
mo vewhen thee ngine isrunning .
R Alw aysm akes uret hat neither youn orthe
batt eryi se lect rostatic allyc harg ed.
R Keep away from fire and open flames .
R Donotlean overthe batt ery.
Obser vethea dditional follo wing pointswhen
ch argin gthe batt ery:
R Onlyusebatt eryc har gers tested and
appr oved forM ercedes-Benz.
R Read theb atteryc har ger's oper ating instruc‐
tions beforec har ging theb attery. Obser
vethea dditional follo wing pointsduring
st ar tin ga ssis tance:
R Startin ga ssis tance maybep erform ed using
onl ybatteries withan ominal voltag eo f12V .
R The vehicles mustnottouc h.
R Vehicl eswith agasoli neengi ne:Jump-
st ar tt he vehicle onlyw hen thee ngine and
ex haus tsyst em arec old. St
arting assistance andchargin gthe 12V
batt ery Re
quirement s:
R The vehicle issecur edwiththe electr icpar k‐
ing brak e.
R The transmission isin position 005D.
R The ignition andallelectr icalconsumer sare
switc hedoff.
R The hood isopen. #
Slide cover3 ofposi tivec lam p4 onthe
jum p-starting con nection point inthed irec‐
tion ofthea rrow . #
Con nect posi tivec lam p4 onyour vehicle to
th ep ositiv epole ofthed onor batteryu sing
th ej um per cable/c harging cable. Always
begin withp ositiv eclam p4 onyour ow n
ve hicle firs t. Br
ea kdo wnassist anc e435

#
Dur ing star ting assistance :st ar tt he
engine ofthed onor vehicle andruna tidle
spe ed. #
Connect then egativ epole ofthed onor bat‐
te ry and grou nd point 5 ofyour ow nv ehicle
by usin gthe jum per cable/c harging cable.
Begin withthe donor batteryf irst . #
During star ting assistance :st ar tt he
engine ofyour ow nv ehicle. #
Dur ing thec har gingproce ss:st ar tt he
ch argin gp roce ss. #
Dur ing star ting assistance :le tt he engines
ru nf or severalm inut es. #
Dur ing star ting assistance :bef ored iscon‐
necting thej um per cable, switchonane lec‐
tr ical consumer inyour ow nv ehicle, e.g.the
re ar wind owdefr ostero rlighting.
When thes tartin ga ssis tance/c harging proce ss
is com plet e: #
First,r emo vethej um per cable/c harging
cable from ground point 5and negative
pole ofthed onor battery, then from positiv e
clam p4 and positiv epole ofthed onor bat‐ te
ry.B egi ne acht imew itht he cont acts on
yo ur ow nv ehicle firs t. #
Afterr emo ving thej um per cable/c harging
cable, closecover3 ofposi tivec lam p4.
Fu rther information canbeobt ained ataq uali‐
fi ed specialis tworks hop. Re
plac ingthe 12Vb attery #
Obs erve then otes on the1 2Vb attery
(/ page431).
Mer cedes-Benz recomme ndsthat youh avet he
12 Vb atteryr eplaced ataq ualif iedspec ialist
wo rkshop, e.g.atan aut hor ized Mercedes-Benz
Cent er.
Obser vethef ollo wing notesi fy ou wantto
re place theb atteryy our self:
R Alw aysr eplace afaulty battery wit hab attery
whic hmeets thes pecif icvehicle requ ire‐
men ts.
The vehicle iseq uipped witha nA GM tech nol ‐
ogy batter y( Ab sorbe ntGlas sM at)o ral ith‐
iu m- ionb attery. Fu llve hicle functionality is onl
yguar anteed witha nA GM batteryo rlith‐
ium-ion battery. Fo rs afet yr easons,
Mer cedes- Benzrecomme ndsthat youo nly
use batteries whic hhave been tested and
appr ovedfor your vehicle byMer cedes-Ben z.
R Carryove rdetac hable parts,s uc ha svent
ho ses, elbowfittingo rterminal covers from
th eb atteryb eing replaced.
R Mak esuret hat thev ent hose isalw aysc on‐
nect edtotheo riginal opening onthes ide of
th eb attery.
Ins tallan ye xisting orsupp lied cellca ps .
Ot he rw ise, gases orbatt erya cid could
escape.
R Mak esuret hat detach able partsarer econ ‐
nec tedi nt he same way. To
ws tarting ortowing away Pe
rm itted towing methods Plug-
inhybrid: obser vethen otes intheS upple‐
ment .Other wise, youm ayfailto recogni zedan‐
ge rs. 436
Breakdo wnassis tance

Mer
cedes-Ben zrecom mends transpor tingy our
ve hicle inthec ase ofab reakdo wn,rath er than
to wing itaw ay.
Fo rtow ing, useatow rope ortowb arwit hb oth
axle sonthe ground. Donotu se towb arsystems
(/ page262). *
NO
TEDama getothev ehicle duetotow‐
ing away inc orrectly #
Obs erve thei nstruction sand noteso n
to wing away. To
wing withar aisedaxle: towing should be
per form ed byatow ing com pany.
Pe rm itted towing methods Ve
hicl eequipment/ towing
me thod Bo
th axle sonthe ground Fr
ont axle raised Re
ar axle raised
Ve hicles witha utomatic transmis‐
sion Ye
s,maximum 31mile s(50 km) at
31 mp h(50 km/h) No
Yes,ifth es teer ing wheel isfixe di n
th ec ent erposition withas teer ing
wheel lock
4MA TICvehicles Yes,maximum 31mile s(50 km) at
31 mp h(50 km/h) No
No Br
eakdo wnassis tance 43
7

To
wing thev ehic lewit hbotha xlesonthe
gr ound #
Obser vethen otes on thep ermitt edtowing
me thods (/page436). #
Mak esuret hat theb atteryi sc onnect edand
ch arge d.
When theb atteryi sd ischar ged, thef ollo wing
actions cannotbep erform ed:
R The engine cannotbe star ted
R The electr icpar king brak ec ann otbe
re leased orapplied
R The automat ictransmissio ncanno tb es hif‐
te dt op osition 005Cor005D
% Ifth ea utomatic transmiss ioncann otbe shif‐
te dt op osition 005C,orthe multifunction dis‐
pla yint he instrument clusterd oes nots how
an ything, have thev ehicle transpor teda way
( / pag e439). Atow ing vehicle withlifting
eq uipment isrequ ired forv ehicle transpor ta‐
tio n. *
NO
TEDama gedue totowing away at
exc essiv elyh igh speeds orove rlong dis‐
ta nces The
drivet ra in could bedamag edwhen tow‐
ing atexc essiv elyhigh speeds orover long
dis tances. #
Atow ing speed of30 mph(50 km/h)
mus tnotbe exc eeded. #
Atow ing distan ceof30 miles(50 km)
mus tnotbe exc eeded. &
WARNIN GRisk ofacci dent whentow ing
av ehicle whichist oo hea vy
If th ev ehicle beingtow- star tedo rtowe d
aw ay ishea vier than thep ermissible gross
mass ofyour vehicle, thef ollo wing situations
can occur :
R The towing eyem aybecome detach ed.
R The vehicle/tr ailercombination may
sw erve oreve novertur n. #
Ifano ther vehicle istow- star tedo r
to we da way,its weight mustnotexc eed th
ep ermissible gross mass ofyour ow n
ve hicle. If
av ehicle mustbetow -sta rted ortowe da way,
its weight mustnotexc eed thep ermissible gross
mass ofthet ow ing vehicle. #
Information onthep ermissible gross mass of
th ev ehicle canbefound onthev ehicle iden‐
tif ication plate(/pag e480). #
Donoto pen thed rive r's door orfront
passeng erdoor ,other wise thea utomatic
tra nsmiss ionautomaticall yshiftsto position
005D. #
Installth et ow ing eye( /pag e441). #
Fasten thet ow bar.
* NO
TEDama gedue toinc orrect connec‐
tion ofthet ow bar #
Onlyconnect thet ow rope ortowb arto
th et ow ing eyes. #
Deact ivat et he aut omatic locking mechanism
(/ page71). 438
Break down assista nce