light MERCEDES-BENZ GLA 2020 Owners Manual

These
notesalso apply tolight alloy wheels
with aclear mattefinish.
Use only insect remover andcarshampoo
from therange ofcare products approved by
Mercedes- Benz.
Cleaning thedecorative film !
The
following mayhave aneffect onthe
service lifeand color ofdecorative film:
R sunlight
R temperat ure,e.g.hot-airfan
R weather conditions
R ston eimpacts anddirt
R chemical cleaningagents
R greasy substances
! Do
not use anytypes ofpolish onmatt
decorative film.Polishing surfacescovered
with filmgives itashiny finish.
! Do
not treat mattorstruct ureddecorative
film with wax. Thismay lead tomarks that
cann otbe removed.
Observe thenotesinthe section onthe care
and treatm entofmatte paintwork
(Y page 281), these notesalso apply tomatte
decorative film.
To clean, useplenty ofwater andamild clean-
ing agent without additional orabrasive prod-
ucts, e.g.useacar shampoo approved for
Mercedes- Benz.
X Dry vehicles coveredwithfilmusing asoft,
absorbent clothafterevery wash.
Water marks couldotherwise form.
Scr atches, corrosiv edeposits, areasaffected
by corrosion anddamage causedbyinade-
quate carecannotalway sbe completely
repaired. Insuch cases, visitaqualified spe-
cialist workshop.
X Remove dirtimmediately, wherepossible,
while avoiding rubbingtoohard.
The decorative filmmay beirreparably dam-
aged.
X Soak insect remains withinsect remover
and rinse offthe treated areasafterwards.
X Soak birddroppings withwater andrinse off
the treated areasafterwards.
The Paint Cleaner cleaning product, whichhas
been approved andrecomm endedby
Mercedes- Benz,should beused when dirthas penetr
atedthedecorative filmsurface orthe
decorative filmhasbecome dull.
The manufact urercanprovide youwith infor-
mation onspecial careandcleaning products.
Laminated surfacesmayexhibit optical differ-
ences tosurfaces whichwerenotprotec tedby
a decorative filmwhen thedecorative filmis
removed.
i Have
workorrepairs ondecorative film
carried outataqualified specialist work-
shop. Mercedes- Benzrecomm endsthatyou
use anauthorized Mercedes-BenzCenter for
this purpose. Cleaning
thevehicle parts
Cleaning thewheels G
WARNIN
G
The water jetfrom acircular jetnozz le(dirt
blasters) cancause invisible exteriordam-
age tothe tires orchassis compon ents.
Component sdamaged inthis way may fail
unexpect edly.There isarisk ofan accident .
Do not use power washers withcircular jet
noz zles toclean thevehicle. Havedamaged
tires orchassis compon entsreplaced imme-
diately.
! Do
not use acidic wheel cleaning products
to remove brakedust.Thiscould damage
wheel boltsandbrake compon ents.
! Do
not park yourvehicle foralong period
of time directly aftercleaning, particularly
after cleaning thewheel rimwith wheel
cleaner. Wheelcleaner canlead tothe
increased corrosionofthe brake discsand
pads. Therefore, driveforafew minutes
after cleaning. Byheating upthe brakes, the
brake discsandpads dry.Thevehicle can
then beparked foralong period oftime.
Cleaning thewindows G
WARNIN
G
You could become trappedbythe wind-
shield wipers ifthey start moving while
cleaning thewindshield orwiper blades.
There isarisk ofinjury. 282
CareMaintenance
andcare

Alw
ayssw itch offthe windsh ield wipe rs and
the igniti onbefore cleani ng the windsh ield
or wipe rbl ad es.
! Onl
yfol dthe windsh ield wipe rs aw ay from
the windsh ield wh en ver tica l.Othe rwise, you
wi llda ma gethe hood.
! Do
not usedry cloths, abrasive pro ducts,
sol vents orcle ani ng agents conta ining sol-
vents tocle an the inside of the windo ws.Do
not touchthe insides ofthe windo wswith
ha rd objects, e.g.an ice scra peror ring .
The reisothe rwisearis kof dama ging the
wi ndo ws.
! Cl
ea nthe water drainage cha nnel sof the
wi ndsh ield and therearwi ndo wat reg ular
inte rvals.Dep ositssuch asleav es, petal s
and pollen ma yund ercerta incirc umstances
pre vent water from draining away.Thi scan
le ad tocorr osion dama geand dama geto
el ectro niccomp onents.
X Clea nthe inside and outside ofthe windo ws
wi th ada mp clothand acle ani ng pro duct
tha tis reco mme ndedand appro ved by
Mer cedes-B enz.
Cl ean ingwi per blades G
WA
RNING
Yo ucou ldbe come trappedby the wind-
shi eld wi pe rs ifthey startmovi ngwhile
cle ani ng the windsh ield or wipe rbl ad es.
The reisaris kof inju ry.
Alw ayssw itch offthe windsh ield wipe rs and
the igniti onbefore cleani ng the windsh ield
or wipe rbl ad es.
! Onl
yfol dthe windsh ield wipe rs aw ay from
the windsh ield wh en ver tica l.Othe rwise, you
wi llda ma gethe hood.
! Do
not pullthe wipe rbl ad e. Othe rwise, the
wi pe rbl ad ecou ldbe dama ged .
! Do
not clean wipe rbl ad es too ofte nand
do not rubthem toohard. Othe rwise, the
gra phitecoa ting couldbe dama ged .Thi s
cou ldcau sewipe rnoi se.
! Hol
dthe wipe rar m sec urelywh en folding
ba ck. The windsh ield cou ldbe dama ged if
the wipe rar m sma cksagainst itsu dd enl y. X
Fol dthe windsh ield wipe rar ms away from
the windsh ield .
X Ca ref ully cle an the wipe rbl ad es with a
da mp cloth.
X Fol dthe windsh ield wipe rar ms back again
be fore switch ingonthe igniti on.
Cl ean ingthe exteri orlighti ng !
Onl
yus ecle ani ng agents orcle ani ng
clo ths thatar esu ita ble for plas tic lenses .
Ca ustic, irrita nt or othe rwiseuns uitab le
cle ani ng agents orcle ani ng cloths could
scra tchordama gethe exte riorlighti ngplas -
tic lenses .
X Clea nthe plas tic lenses ofthe exte riorlights
wi th awe tspo nge and amil dcle ani ng
ag ent, e.g.Mer cedes-B enzcarshampo oor
cle ani ng cloths.
Cl ean ingthe mirro rturn sign als !
Onl
yus ecle ani ng agents orcle ani ng
clo ths thatar esu ita ble for plas tic lenses .
Unsu itable cle ani ng agents orcle ani ng
clo ths couldscra tchordama gethe plas tic
le nses ofthe mirror turn signa ls.
X Clea nthe plas tic lenses ofthe mirror turn
si gna lsin the exte riormir ror hou sing using a
we tspo nge and mildcle ani ng agent, e.g.
Mer cedes-B enzcarshampo oor cle ani ng
clo ths.
Cl ean ingthe sens ors !
If
yo ucle an the sens orswith apo we r
wa she r,ma kesure tha tyo ukee padi sta nce
of at leas t11.8 in(30 cm)be twe enthe vehi-
cle and thepowe rwa she rnozzl e.Info rma -
tio nab ou tthe corr ectdista nce isavaila bl e
from theequipme ntma nuf actu rer. Care
283Mai ntenan ceand care Z

X
Clean sensors0043 ofthedriv ingsyst ems
wit hwate r,car sham pooandasof tclo th.
Clean ingtherea rview camera !
Do
notcle an thecam eralensand thearea
aroun dth erear view camerawithapower
washe r. X
Mak esure that theveh icle isat ast and still
and theSm artKey isin posi tion0048 inthe
ign ition lock.
X Open thecam eracover forcleanin gvia the
mult imed iasyst em(see Digital Oper ator's
Man ual).
X To clean therea rview camera:use clear
wate rand asof tclo thto cle an cam era
len s0043. Clean
ingtheexha ustpipes G
WAR
NING
The exhaust tailpipe andtailpipe trim can
bec ome veryhot .If you come intoco ntact
wit hth ese partsof theveh icle,you could
burn yours elf.Ther eis aris kof burn s.
Alwa ysbe part icular lycar eful andsuper vise
ch ildr enclosely aroun dth eex haust pipeand
th eex haust pipetrims .All ow these compo -
ne ntsto cool down before touch ingthem.
! Do
notcle an theex haust pipewithacid -
based cleanin gagen ts,suc has bat hro om
cle ane ror wheel cleane r.
! Mer
cedes‑AM Gveh icleswit hblac ktail -
pipes :blac kch rom etrims must notbe pol-
ishe dwit hach rom epolis has this will caus e
th em tolose their blac kshin e.For optimal
car e,thefac eplat essho uld berubbe dwit ha
light lyoiled clothaft ereve rycar wash. Com-
mer ciall yavailab leen gin eoils and careoils
are suitable foruse.
For heav iersoili ng,you can apply afin e
pain tworkpolis hwit hamic rofiber cloth.
Remo vetheex ces spolis hres idue afterpol-
ishin g.
Imp urities combin edwithth eeff ect sof road
grit and corrosiv een viron men talfactors may
caus eflas hrust tofor mon thesurf ace. You
can restore theorig inal shineof theex haust
pipe bycleanin git reg ularly, especiallyin win-
te rand afterwashin g.
X Clean theex haust pipewithacar epro duct
te sted and appr ovedby Mer cedes-Ben z. Int
erior car e
Clean ingthedis pla y !
For
cleanin g,do notuse anyofthefoll ow-
ing :
R alco hol-based thinn eror gaso line
R abras ivecleanin gagen ts
R co mm ercially- availab lehous eholdcle an-
ing agen ts
Thes emay damag eth edispl aysurf ace. Do
no tput pressur eon thedispl aysurf ace 284
Car
eMaintenan ceand care

It
exhibi tsnatural surface characteristics, for
example :
R differences inthe texture
R marks causedby growth andinjury
R sligh tnuances ofcolor
These arecharacteristics oflea ther andnot
materia ldefects.
Seat covers ofother materials
! Observe
thefollow ingwhen cleaning:
R clean artificia llea ther covers withacloth
moistened withasolu tion containing 1%
detergent (e.g.dishwash ingliquid).
R clean clothcovers withamicrofiber cloth
moistened withasolu tion containing 1%
detergent (e.g.dishwash ingliquid). Rub
careful lyand always wipeentire seatsec-
tions toavoid leaving visibl elines. Leave
the seat todry afterwa rds.Cleaning
resul tsdepend onthe type ofdirt and
how long ithas been there.
R clean DINAMICA coverswithadamp
cloth. Makesurethatyouwipeentire seat
sections toavoid leaving visibl elines.
Cle aning theseat belts G
WARNING
Seat belts canbecome severelywea kened if
blea ched ordye d.This could cause theseat
belts totear orfail ,for instance, inthe event
of an accident. Thisposes anincreased risk
of injury orfatal injury.
Never bleachordye theseat belts.
! Do
not clean theseat belts using chemical
cleaning agents.Donot drythe seat belts
by heating attemperature sabove 176‡
(80 †)orindirect sunlight.
X Use clean, lukewarmwater andsoap solu-
tion.
Cle aning theheadline rand carpets X
Headline r:ifit is very dirty, useasoft brush
or dry shampo o.
X Carpets: usethecarpet andtextile cleaning
agents recommended andappro vedby
Mercedes-Benz. 286
CareMaintenanc
eand care

Where
willIfind...? Refle
ctive safety jacket
Removi ng/replac ingthe refle ctive
safety jacket The
refle ctive safetyjackets areloca tedin
front doorstowa gecompa rtments 0043.Reflec-
tive safetyjackets canalsobe stored inthe
rear door stowa gecompa rtments.
X To remove :pul lout thesafe tyjacket bag
containing therefle ctive safetyjacket.
X Open thesafe tyjacket bagand pullout the
refle ctive safetyjacket.
X To stow :fold therefle ctive safetyjacket,
roll itup and stow itin the safe tyjacket bag.
X Rep lace thesafe tyjacket baginto stowa ge
compa rtment 0043.
i Remo
veanew reflective safetyjacket
from itspacka gingmateri albefore sliding it
into thestowa gecompa rtment. Thepacka g-
ing materi almay otherw isecaus eit to slip
out ormake removi ngitdiffi cult.
Obser vethe lega lrequ ireme ntsineach coun-
try. Info
rmation onrefle ctive safety jack-
ets 0043
Maxim umnumbe rof wa shes
0044 Maxim umwash tempera ture
0087 Donot bleach
0085 Donot iron
0083 Donot use alau ndry dryer
0084 Donot dry-cl ean
006B This isaclas s2 vest
R The refle ctive safetyjackets meetthe
requ ireme ntsdefined bythe lega lstanda rd
only :
- ifthe correct sizeisuse dand
- ifthe refle ctive safetyjackets arecor-
rectly fastened
R Before use,ensure thattherefle ctive safety
jackets areclea nand intact. Thespeci al
prope rtiesmayotherw isebecompromi sed.
R The refle ctive safetyjackets shouldbe
stored intheir originalpacka ginginadry
pla ceaway from sourcesofhea tand light.
R The maximu mnumbe rof wa shes speci fied
is not theonly factor influencing thelife
spa nof the refle ctive safetyjackets. Their
life spanals odepe ndsonuse ,care, storage ,
etc.
R The refle ctive safetyjackets shouldbe dis-
pose dof and replaced withnewones:
- after 15washes, and/or
- ifthe refle ctive strips havebecome
scratched ,and/or
- ifthe backing materialand/or reflective
strips havebecome soiledand cannot be
clea ned off,and/or
- ifthe fluorescence hasfade de.g. due to
the effects ofsunli ght
R Dispos eof refle ctive safetyjackets inan
environmenta llyrespo nsiblemanner. Todo Where
willIfind...?
287Breakdown assistance

X
To reduc ethe tire pres sure :de pre sspre s-
su re release button 0043next topre ssu re
ga ug e0044.
X Whe nthe tire pressu reiscorr ect, unscrew
the fillerhos efrom thevalve ofthe sealed
tire .
Note thattire sealant ma yesca pewhen you
uns crew thefillerhos e.
X Screw thevalve cap onto thetire valve of
the sealed tire .
X Pu llthe tire sealant bottle outof the tire
infl ation comp ressor .
The fillerhos erem ains atta chedto the tire
sea lant bottle .
X Driv eto the nearestqu alifi ed spe cialist
wo rksh opand have the tire changed there.
X Hav ethe tire sealant bottle replaced as
soo nas possi ble at aqu alifi ed spe cialist
wo rksh op.
X Hav ethe tire sealant bottle replaced every
fou rye ars ataqu alifi ed spe cialist wo rksh op. Battery
(vehi cle) Impo
rtant safetynotes
Spe cialtool sand expertknow ledge are
req uired when working onthe battery ,e.g .
rem ovaland installatio n.Yo usho uld ther efore
ha ve allwo rkinvo lving the battery carriedou t
at aqu alifi ed spe cialist wo rksh op. G
WAR
NING
Wor kcar riedou tinco rrectly onthe battery
can lead ,for exa mpl e,to asho rtcirc uitand
thu sda ma gethe vehicleelectro nics.Thi s
can lead tofunc tionres tricti onsapplying to
sa fety -releva ntsystem s,e.g .the lighti ng sy
stem ,the ABS (anti-l ock braking system )
or the ESP ®
(El ectro nicStab ility Pro gram).
The opera ting safety ofyour veh iclemay be
res tricte d.
Yo ucou ldlose contro lof the vehicle, for
exa mpl e:
R wh en bra king
R in the eventofabrupt stee ring maneu vers
and /or when the vehicle's spe edisnot
ad apted tothe roadcond itions
The reisaris kof an acci dent.
In the eventofasho rtcirc uitor asimil ar
inci dent, conta ctaqu alifi ed spe cialist wo rk-
sho pimm ediatel y.Do not drive any further .
Yo usho uld ha ve allwo rkinvo lving the bat-
tery carriedou tat aqu alifi ed spe cialist
wo rksh op.
For further informa tionab ou tABS andESP®
,
see (Ypage 60)and (Ypage 63). G
WAR
NING
Ele ctros taticbu ild-u pcan lead tothe crea -
tio nof spa rks, which cou ldignite thehighl y
exp losive gases ofaba ttery .The reisaris k
of an exp losion.
Befo rehandl ing the battery ,tou chthe vehi-
cle body torem ove anyexisting electro static
bu ild-u p.
The highl yfla mma ble ga smixtu reform swh en
cha rging the battery aswellas when jump -
sta rting .
Alw aysma kesure tha tnei ther younor thebat-
tery iselectro statica lly cha rged.Abu ild-u pof
el ectro static cha rge can becau sed,for exa m-
pl e:
R by wearing clothing ma de from syntheti c
fib ers
R du eto frictio nbe twe enclothing and seats
R ifyo upu sh orpullthe battery across the
car petor othe rsy ntheti cma teri als
R ifyo uru bthe battery with aclo th G
WAR
NING
Duri ngthe charging pro cess ,a ba ttery pro-
du ces hydro gen gas.Ifasho rtcirc uitoccu rs Battery
(vehi cle)
293Breakdo wnassis tan ce
Z

Wear
eyeprotec tion. Keep
children away. Observe
thisOperator' sManual.
For safety reasons, Mercedes- Benzrecom-
mends thatyouonly usebatter ieswhich have
been testedand approved foryour vehicle by
Mercedes- Benz.These batteriesprovide
incr eased impact protectiontoprevent vehicle
occupant sfrom sufferin gacid burns should
the batter ybe damaged inthe event ofan
accident .
In order forthe batter yto achieve themaxi-
mum possible servicelife,itmust alway sbe
sufficien tlycharged.
Like other batter ies,thevehicle batterymay
discharge overtime ifyou donot use thevehi-
cle. Inthis case, havethebatter ydisconn ec-
ted ataqualified specialist workshop. Youcan
also charge thebatter ywith acharger recom-
mended byMercedes- Benz.Contac ta quali-
fied specialist workshop forfurther informa-
tion.
Have thebatter ycondit ionofcharge checked
more frequent lyifyou usethevehicle mainly
for short tripsorifyou leave itstandin gidle
for alength yperiod. Consult aqualified spe-
cialist workshop ifyou wish toleave yourvehi-
cle parked foralong period oftime.
Only replace abatter ywith abatter ythat has
been recomm endedbyMercedes- Benz.
Remove theSmart Keyifyou park thevehicle
and donot require anyelectr icalcons umers.
The vehicle willthen usevery little energy,
thus conserving batterypower.
If the power supply hasbeen interrupted, e.g.
if you recon nectthebatter y,you willhave to:
R set the clock using themultimedia system
(see theDigital Operator' sManual)
R reset thefunct ionforfolding theexterior
mirrors in/outautomatically, byfolding the
mirrors outonce (Ypage 99) Charging
thebatt ery G
WARNIN
G
During charging andjump- starting,explosive
gases canescape fromthebatter y.There is
a risk ofan explosion.
Particularly avoidfire,open flames, creating
sparks andsmokin g.En sure there issuffi-
cient ventilation whilecharging andjump-
start ing.Donot lean over abatter y. G
WARNIN
G
Batt eryacid iscaustic. Thereisarisk of
injury.
Avoid contactwith skin,eyes orclothin g.Do
not inhale anybatter ygases. Donot lean
over thebatter y.Keep children awayfrom
batter ies.Wash awaybatter yacid immedi-
ately withplenty ofclean water andseek
medical attention. G
WARNIN
G
A discharged batterycan freez eat temper a-
tures below freezingpoint. Whenjump-start-
ing the vehicle orcharging thebatter y,
gases canescape fromthebatter y.There is
a risk ofan explosion.
Allow thefrozenbatter yto thaw outbefore
charging itor jump- starting.
! Only
usebatter ychargers withamaximum
charging voltageof14. 8V.
! Only
charge thebatter yusing thejump-
start ingconn ection point.
The jump- startingconn ection pointisin the
engine compart ment(Ypage 296).
X Open thehood.
X Connec tthe batter ycharger tothe positive
term inaland ground pointinthe same order
as when connectin gthe donor batteryin the
jump- startingprocedure (Ypage 296).
If the indicator /warninglamps donot light up
in the instrument clusteratlow temper atures,
it is very likely thatthedischarged batteryhas
froz en.Inthis case youmay neith erjump- start
the vehicle norcharge thebatter y.The service
life ofathawed-out batterymay beshort er.
The start ingcharact eristicscan beimpaired, Bat
tery(vehicle )
295Breakdown assistance Z

G
WARNING
During thechargi ngprocess ,a battery produceshydrogen gas.Ifashort circuitoccurs or
spar ksare created ,the hydrogen gascan ignite. Thereisarisk ofan explo sion.
R Make surethattheposi tive terminal ofaconnected batterydoesnotcome intocontact with
vehicl eparts.
R Never placemetal objects ortools onabattery .
R Itis impor tantthatyouobse rvethe descri bedorder ofthe battery terminal swhen connect-
ing and disconnecting abattery .
R When jump-starting, makesurethatthebattery poleswith identical polarityareconnected.
R Itis particu larlyimpor tanttoobse rvethe descri bedorder whenconnecting anddisconnect-
ing the jumper cables.
R Never connect ordisconnect thebattery terminal swhi lethe engine isrunning. G
WARNING
A discha rgedbattery canfreeze attempera turesbelow freezing point.Whenjump-starting the
vehicl eor chargi ngthe battery ,gase scan escap efrom thebattery .There isarisk ofan explo -
sion.
Allow thefrozen battery tothaw outbefore chargingitor jump-starting.
! Avoid
repeatedand lengthy starting attempts. Otherwise,the catal yticconverter couldbe
dama gedbythe non-combusted fuel.
If the indica tor/warni nglamp sdo not light up inthe instrument clusteratlow tempera tures,itis
very likelythat thedischa rgedbattery hasfrozen. Inthis case youmay neither jump-start the
vehicl enor charge thebattery .Let the battery thawfirst.Theservice lifeofathawe d-outbattery
may beshorter. Thestarting characteristics canbeimpa ired,particu larlyat low tempera tures.
Have thethawe d-outbattery checked ataqua lified speci alist worksho p.
Do not start thevehicl eusi ng arapi dchargi ngdevi ce.Ifyou rvehicl e'sbattery isdischa rged,the
engine canbejump-started fromanother vehicleor from asecond batteryusing jumper cables.
Observe thefollowi ngpoints:
R The battery isnot accessi bleinall vehicl es.Ifthe other vehicle'sbattery isnot accessi ble,
jump-start thevehicl eusi ng asecond batteryorajump-starting device.
R You may onlyjump-start thevehicl ewhen theengine andexhau stsystem arecold.
R Do not start theengine ifthe battery isfrozen. Letthe battery thawfirst.
R Only jump-start frombatterie swith a12 Vvoltag erating.
R Only usejumper cablesthat arenot dama gedand have asuffi cient cross-section andinsul a-
ted terminal clamps.
R Make surethatthetwo vehicl esdo not touch.
Make surethat:
R The jumper cablesare not dama ged.
R Non-insul atedparts ofthe terminal clampsdo not come intocontact withother metal parts
whi lethe jumper cablesare connected tothe battery .
R The jumper cablescannot comeintocontact withparts thatcanmove whentheengine isrun-
ning, suchasthe V-belt pulley orthe fan.
X Secure thevehicl eby app lying the electric parkingbrake.
X Shift thetransmissi ontoposi tion 005D.
X Turn theSmartKey toposi tion 005Ainthe ignitio nlock andremove it. Jump-star
ting
297Breakdown assistance Z

X
Swi tch offallel ectri calconsu mers,e.g. rearwi ndow defroste r,lighti ng,etc.
X Ope nthe hood. Pos
ition numb er0084 identif iesthe chargedba ttery ofthe othe rveh icleor an equ ivalent jump -
star ting device.
X Pre sstoge ther cove r0043 ofpos itive clamp 0044and slide itba ck.
X Co nnect positive termi nal0044onyour veh icleto pos itive termi nal0087ofdono rba ttery 0084using
the jump ercab le,beg inningwith your ow nba ttery .
X Start theengi neofthe dono rveh icleand runitat idling spe ed.
X Co nnect negativetermi nal0085ofdono rba ttery 0084togro und point0083 ofyour veh icleus ing the
jump ercab le,connecti ngthe jump ercab leto battery ofothe rveh icle0084 first.
X Ifthe battery isful lydischa rged,leave thebattery thatisbei ng used tojump -startconnecte d
for afew minu tesbefore attem ptingtostar t.Thi scha rgesthe battery slightl y.
X Start theengi ne.
X Befo redisconne ctingthejump ercab les, letthe engi nerun forseve ralminu tes.
X Firs t,remo vethe jump ercab lesfrom ground point0083 and nega tivetermi nal0085, then from
pos itive termi nal0044and positive termi nal0087. Begi nea ch time atthe contac tson your ow n
veh iclefirs t.
X Close cove r0043 ofpos itive termi nal0044afte rremo vingthejump ercab les.
X Close thehood.
X Have thebattery checke dat aqu alifi ed spe cialist wo rksho p.
i Ju
mp-sta rtingisnot consi deredtobe anorma lope ratingcondi tion.
i Ju
mpe rcab lesand further informa tion regard ing jump -startingcanbeobta inedat any quali-
fie dspe cialist wo rksho p. 29
8 Jump-startin
gBreakdownassistanc e

If
the tire pressu reshave been settothe lowe r
valu esfor lighter loadsand/or lowerroad
speed s,the pressu resshoul dbe reset tothe
higher values:
R ifyou want todrive withanincreased load
and/or
R ifyou want todrive athigher speeds
i The
tirepressu resforincreased loads
and/or higherroadspeed s,shown inthe
tire pressu retable, mayhave anegative
effect ondriving comfort.
If the tire pressu reisnot setcorrectly, thiscan
lea dto an excessive build-up ofheat anda
sudd enloss ofpressu re.
For more information, contactaqua lifiedspe-
ciali stworkshop. Important
notesontire pressure G
WARNING
If the tire pressu redrops repeatedly,the
wheel ,valve ortire may bedama ged.Tire
pressu rethat istoo low may resul tin atire
blow -out. There isarisk ofan accident.
R Check thetire forforeign objects.
R Check whether thewheel islosing airor
the valve islea king.
If you areunabl eto rectify thedama ge,con-
tact aqua lifiedspecia listworkshop. G
WARNING
If you fitunsui table accessorie sonto tire
valves ,the tire valves maybeoverloa ded
and malfu nction, whichcancause tirepres-
sure loss. Duetotheir desig n,retrofitted tire
pressu remonitors keepthetire valve open.
This canalso resul tin tire pressu reloss.
There isarisk ofan accident.
Only screw thestandard valvecaporother
valve capsappro vedbyMercedes-Benz for
you rvehicle ontothetire valve.
Use asuita blepressu regau getocheck the
tire pressu re.The outer appearance ofatire
does notpermit anyrelia bleconclusion about
the tire pressu re.On vehicle sequi pped with
the electronic tirepressu remonitor, thetire pressu
recan bechecked inthe on-board com-
puter.
The tiretemperature andpressu reincrease
when thevehicle isin motion. Thisisdepend-
ent onthe driving speedandtheload .
Therefore, youshoul donly correct tirepres-
sures whenthetires arecold.
The tires arecold:
R ifthe vehicle hasbeen parked withthetires
out ofdirect sunlightfor atlea stthree hours
and
R ifthe vehicle hasbeen driven lessthan
1 mile (1.6km)
The tiretemperature changesdependingon
the outsid etemperature ,the vehicle speed
and thetire load .If the tire temperature
changes by18 ‡(10 †), thetire pressu re
changes byappro ximately 10kPa (0.1 bar/
1.5 psi).Take thisinto account whenchecking
the pressu reofwarm tires.Onlycorrect the
tire pressu reifit is too low forthe current
opera tingconditions. Ifyou check thetire
pressu rewhen thetires arewarm, theresul t-
ing valu ewil lbe highe rthan ifthe tires were
cold. Thisisnormal. Donot reduce thetire
pressu reto the valu especifie dfor cold tires.
The tirepressu rewou ldotherwise betoo low.
Observe therecommended tirepressu resfor
cold tires:
R on the Tire andLoadi ngInformation placard
on the B-pilla ron the driver's side
R in the tire pressu retable inthe fuel fillerflap
(Y page 144) Underinfl
atedoroverin flated tires
Underinfl atedtires G
WARNING
Tires withpressu rethat istoo low can over-
heat andburst asaconsequence. Inaddi -
tion, theyalsosuffer fromexcessive and/or
irregu larwea r,which canseverel yimpa irthe
braking propertie sand thedriving character-
istics. Thereisarisk ofan accident.
Avoid tirepressu resthat aretoo low inall
the tires, includi ngthe spare wheel. 310
Tire
pressureWheel sand tires