2020 MERCEDES-BENZ A-CLASS SEDAN Owner's Manual

*
NO
TEDama gedue totowing away at
exc essiv elyhigh speeds orove rlong dis‐
ta nces The
drivet ra in could bedamag edwhen tow‐
ing atexc essiv elyhigh speeds orover long
dis tances. #
Atowing speed of30 mph(50 km/h)
mus tno tbe exc eeded. #
Atowing distan ceof30 miles(50 km)
mus tno tbe exc eeded. &
WARNIN GRisk ofacci dent whento wing
a ve hicle whichis toohea vy
If th eve hicle being tow- star tedor towe d
aw ay ishea vier than theper missible gross
mass ofyour vehicle, thefo llo wing situat ions
can occur:
R The towing eyema ybecome detach ed.
R The vehicle/tr ailercombination may
sw erve oreve nov ertur n. #
Ifano ther vehicle istow- star tedor
to we daw ay,its weight mustno texc eed th
eper missible gross mass ofyour ow n
ve hicle. If
ave hicle mustbe tow- star tedor towe daw ay,
its per missib legross weight mustno texc eed the
per missible gross weight oftheto wing vehicle. #
Information ontheper missible gross mass of
th eve hicle canbefound ontheve hicle iden‐
tif ication plate(/ page458). #
Vehicl eswith automatic transmiss ion:Do
no topen thedr iver's door orfront passeng er
door ,ot her wise theaut omatic transmiss ion
aut omaticall yshif tsto position 005D. #
Installth eto wing eye(/ page41 7). #
Fasten theto w bar .
* NO
TEDama gedue toinc orrect connec‐
tion oftheto w bar #
Onlyconnect theto w rope ortow bar to
th eto wing eyes. #
Deact ivat eth eaut omatic locking mechanism
(/ page72 ). #
Donotactiv ateth eHOLD function. #
Deact ivat eth eto w- aw ay alar m(/ page88) . #
Deact ivat eAc tiveBr ak eAssi st
( / pag e17 0). #
Vehicl eswith automatic transmiss ion:
Shif tth eaut omatic transmiss iontoposition
005C. #
Release theelectr icpar king brak e. #
Switc hon theignition ,ot her wise thesteer ing
wheel lockma yeng age. &
WARNIN GRisk ofacci dent dueto limi‐
te dsaf ety-re lat ed func tionsdur ing the
to wing proce ss
Saf ety-re lat ed func tionsar elimit edorno lon‐
ge rav ailable inthefo llo wing situat ions:
R theignition isswitc hedoff.
R thebr ak esy stem orpowe rst eer ing sys‐
te m ismalfu nctioning.
R theener gysupply ortheon- boar delectr i‐
cal system ismalfunct ioning. Br
eakdo wnassis tance 41
5

When
your vehicle isthen towe daw ay,signif ‐
icant lymor eef fort ma ybe requ ired tosteer
and brak eth an isno rm allyre qu ired. #
Use ato w bar . #
Mak esur eth at thesteer ing wheel can
mo vefreely ,bef oreto wing theve hicle
aw ay. *
NO
TEDama gedue toexcess ive tracti ve
po we r If
yo upull away shar ply, thetractiv epo we r
ma ybe toohigh andtheve hicles couldbe
damag ed. #
Pull away slo wlyand smoo thly. Lo
adi ng the vehicl efo rtr ans port #
Obser vetheno teson towing away
( / pag e41 4). #
Con nect theto w bar totheto wing eyein
or der toload theve hicle. #
Vehicl eswith automatic transmiss ion:
Shif tth eaut omatic transmiss iontoposition
005C.
% Ve
hicl eswith automatic transmiss ion:
The automatic transmiss ionmaybe locked
in posit ion005Dintheeve ntofdama getothe
electr icalsystem. Toshif tto 005C ,pr ov ide the
on-boar delectr icalsystem withpo we r
( / pag e41 1). #
Load theve hicle ontoth etra nspor ter. #
Vehicl eswith automatic transmiss ion:
Shif tth eaut omatic transmiss iontoposition
005D. #
Use theelectr icpar king brak eto secur eth e
ve hicle agains tro lling away. #
Onlysecur eth eve hicle bythewheels. Ve
hicl eswith ADSPL US (Adap tiveDam ping
Sy stem PLUS) &
WARNIN GRisk ofan acci dent when
tr ansp orting vehicles withAd aptive
Dam pingSy stem PLUS
The reduced damping forc es on theve hicle
being transpor tedcan cause theve hicle/
tr ailer combination tostar tto swing.
As are sult, when transpor tingvehicles with
th eAd aptiveDam pingSy stem PLUS, the
ve hicle/tr ailercombination mayst ar tto skid.
Conseq uently,yo uco uld lose contro lof your
ve hicle. #
When transpor ting,ensur eth at:
R The vehicle hasbeen loaded onto
th etranspor tercor rectl y
R The vehicle issecur edatall four
wheel swit hsuit able tensi oni ng
st ra ps
R The maximum permissible speedof
35 mph(6 0km/h) isno texc eeded
when transpor ting 41
6
Brea kdo wnassista nce

*
NO
TEDama getotheve hicle from secur‐
ing itincor rectl y #
Afterloa ding, theve hicle mustbe
secur edon allfour wheel s.Ot her wise,
th eve hicle could bedamag ed. #
Aminimum distance of8in (20 cm)
up wa rdsand 4in (10 cm) down wards
mus tbe kept tothetranspor tplatf orm. #
Secur eth eve hicle onallfour wheel saf te r
loading .
4MA TICvehicl es/vehicl eswith automatic
tr ansmiss ion #
Mak esur eth at thefront and rear axle scom e
to rest on thesame transpor tatio nve hicle.
* NO
TEDama getothedr ivet ra in due to
inc orrect pos itioning #
Donotpos ition theve hicle abovethe
connecti onpointofthetranspor tve hi‐
cle. To
wing eyesto rage location To
wing eye1 islocat edinthestow agespac e
unde rth etrunk floor . Ins
talling theto wing eye #
Press themar kon cover1 inwa rdsand
re mo ve. #
Screw intheto wing eyecloc kwiseasfaras it
wil lgo and tight en.
% Mak esur eth at cover1 eng ages inthe
bum perwhen youre mo vetheto wing eye. Br
eakdo wnassis tance 41
7

*
NO
TEDama getotheve hicle dueto
inc orrect useof theto wing eye When
ato wing eyeis used toreco vera ve hi‐
cle, theve hicle maybe damag edinthepr oc‐
ess. #
Onlyuse theto wing eyeto tow aw ay or
to w star tth eve hicle. To
w star ting theve hicl e(eme rgency engine
st ar t) Ve
hicl eswith automatic transmiss ion
* NO
TEDama getotheaut omatic trans‐
mission duetotow star tin g The
automat ictransm issionma ybe damag ed
in thepr ocess oftow star tin gve hicles with
aut omatic transmission. #
Vehicles withaut omatic transmission
mus tno tbe tow star ted. #
Vehicles withaut omatic transmission must
no tbe tow- star ted. Electr
icalfuses No
teson electr icalfuses &
WARNIN GRisk ofacci dent andinjury
due tooverloaded lines
If yo uman ipulat eor bridg eafa ulty fuse orif
yo ure place itwit hafuse withahigher
am per age, theelectr icline could beove rloa‐
ded.
This could result inafire . #
Alw aysre place faulty fuseswit hspec i‐
fi ed newfuses containin gth ecor rect
am per age. *
NO
TEDama gedue toinc orrect fus es Electr
icalcom pone ntsorsystems maybe
damag edbyinc orrect fus es, ortheir func ‐
tion ality maybe signif icantlyim pair ed. #
Onlyuse fuses that have been approved
by Mer cedes-Ben zand whic hha ve the
cor rect fus era ting . Blo
wn fuse smu stbe replaced withfuses ofthe
same rating ,wh ich yo ucan recogni zeby the
colo rand fusera ting .The fuse rating sand fur‐
th er information tobe obser vedcan befound in
th efuse assignmen tdiagr am.
Fu se assignment diagram: onthefuse boxin
th eengine compartmen t(/ page41 9).
* NO
TEDama geormalfunct ionscaused
by mois ture Mois
turema ycause damagetotheelectr ical
sy stem orcause itto malfu nction. #
When thefuse boxis open, makesur e
th at no mois turecan enterthefuse
bo x. #
When closing thefuse box,mak esur e
th at theseal ofthelid isposition edcor‐
re ctly onthefuse box. If
th ene wlyinser tedfuse alsoblows,ha ve the
cau setrace dand rectif ied at aqu alif ied spec ial‐
is two rkshop.
Ensur eth efo llo wing beforere placing afuse:
R The vehicle issecur edagains tro lling away. 41
8
Brea kdo wnassista nce

R
Allelectr icalconsu mersar esw itched off.
R The igniti onissw itched off.
The electr icalfu ses arelocat edinvarious fuse
bo xes:
R Fuse boxin theengine compartmen ton the
lef t-hand sideoftheve hicle, when viewe din
th edir ect ion oftrav el (/ page41 9)
R Fuse boxin thefront passeng erfoot we ll
(/ page420)
R Fuse boxin thecent erofthetrunk
(/ page42 1) Opening
andclosing thefus ebo xin the
engine compartmen t Re
quirement s:
R Adr yclo thand asc rewdr iver areav ailable.
Obse rveth eno teson electr icalfuses
(/ page41 8). Op
ens &
WARNIN GRisk ofinju ryfrom using the
winds hieldwiper swhile theengine hood
is open
When theengine hoodisopen andthewind‐
shield wipersar ese tin mo tion ,yo ucan be
tr apped bythewiper linkage. #
Alw aysswitc hof fth ewindshield wipers
and ignition beforeopening theengine
hood. #
Open thehood. #
Remo veanyex istin gmois turefrom thefuse
bo xusing adr yclo th. #
Loosen screws1. #
Press clam ps2 and liftth efuse boxlid up
and out.
The fuse allocation chartis in are cess onthe
side ofthefuse box. Br
eakdo wnassis tance 41
9

Closing
#
Chec kwhe ther theseal isposition edcor‐
re ctly inthelid. #
Place thelid on thefuse box. #
Mak esur eth at clam ps2 eng age. #
Tight enscrews1. #
Close thehood. Opening
andclosing thefus ebo xin thefront
pa sseng erfoot we ll Obser
vetheno teson electr icalfuses
(/ page41 8). Op
eni ng #
Lift car pet1 inthedir ect ion ofthear row . #
Loosen screws2 and remo vethefuse box
lid from theto p.
Closing #
Place thelid on thefuse box. #
Tight enscrews2. #
Foldbac kth ecar pet. 420
Breakdo wnassis tance

Opening
andclosing thefus ebo xin the
tr unk Obser
vetheno teson electr icalfuses
(/ page41 8). #
Open thetrunk floor (/ page10 5). Fu
se box1 islocat edinthecent erunder neath
th etrunk floor . Br
eakdo wnassis tance 42
1

No
teson noise orunusua lhand lingcharac‐
te rist ics
While driving ,pa yatt ent ion tovibr ations, noises
and unusu alhandl ingcharact eristic s,e.g .pullin g
to one side. Thismayindicat eth at thewheels or
tir es aredamag ed.Ifyo ususpe ctthat atir eis
def ective, reduce your spee dimm ediat ely. Stop
th eve hicle assoon aspossible tocheckth e
wheels andtires fordama ge.Hid den tireda m‐
ag ecou ldalso be cau sing theunusual handling
ch aract eristic s.Ifyo ufind nosigns ofdamag e,
ha ve thetir es and wheels checkedat aqu alif ied
spec ialistwo rkshop. No
teson regular lyinspect ingwheels and
tir es &
WARNIN GRisk ofacci dent from dam‐
ag ed tires
Dama gedtir es can cause tirepr essur eloss.
As are sult, youco uld lose contro lof your
ve hicle. #
Chec kth etir es regular lyforsigns of
dama geand replace anydamag edtires
immediat ely. &
WARNIN GRisk ofaquaplani ng dueto
insuf ficie nttiretrea d
Insu fficien ttir etread willresult inreduced
tir egr ip. The tiretread isno long erable to
dissipat ewa ter.
This means that inhea vyrain or slush the
ri sk ofhydroplaning isincr eased, inpar ticu‐
lar ifve hicle speed isno tadap tedto suit the
condi tions.
If th etir epr essur eis toohigh ortoolow,
tir es ma yex hibit differe nt leve ls of we arat
dif fere nt locati ons onthetir econ tact sur‐
fa ce. #
Thu s,yo usho uld regular lych eckth e
tr ea dde pthand thecon dition ofthetir e
con tact surface across theent ire widt h
of all tires. Minimum
tread depthfor:
R Summ ertires: 00CEin(3 mm)
R M+S tires: 00CFin(4 mm) #
Forsaf etyre ason s,replace thetir es
bef oreth eleg ally prescr ibed limit for
th eminimum tread depthisreac hed. Car
ryout thefo llo wing checks on allwheels reg‐
ular ly,at leas tonce amont hor as requ ired, e.g.
pr ior toalon gjo ur ne yor drivin gof f-ro ad:
R Chec kth etir epr essur e(/ page42 4).
R Visual lyinsp ectwheels andtires fordama ge.
R Chec kth eva lve caps.
The valves mus tbe protect edagains tmois‐
tur eand dirtby theva lve caps approved
especiall yfo ryo ur vehicle byMer cedes-Ben z.
R Visual checkof thetir etread depthand the
tir econt actsurface across theent ire widt h.
The minimum tread depthforsummer tires is
00CE in(3 mm) andforwint ertires 00CF in
(4 mm). 422
Wheel sand tires