warning MERCEDES-BENZ GLA 2022 Service Manual

R
Tire pressure willbedisplay edafter driving a
few minutes
R Tire Pressure MonitorActive: thete ac h-in
pr ocess ofthesy stem isno tyet com plete.The
tir epr ess ures arealr eady being monitored. #
Com pareth etir epr essur ewit hth ere com-
mende dtir epr essur efo rth ecur rent ope rating
condi tion(/page309) .Ad ditionall y,obser ve
th eno teson cold tires (/ page307).
% The values displa yedin theon-boar dcom-
put erma yde viat efrom those ofthetir epr es-
sur ega ug eas they referto sea leve l.At high
ele vations, thetir epr essur eva lues indicat ed
by apr essur ega ug ear ehigher than those sho
wnbytheon-boar dcom puter.In this case,
do notre duce thetir epr essur e.
R R
est est
ar ar
ting t ting
the tir he
tirepr e
pr essur essur
emonit e
monit or or
ing syst ing
system em
R R
eq eq
uir uir
ements: ements:
R The recommen dedtirepr essur eis cor rectl y
se tfo rth ere specti veoper ating status onallof
th ewheels (/page307).
Re star tth etir epr essur emonit oring system inthe
fo llo wing situations:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wly installed.
On-boar dcom puter:
4 Service 5
Tires #
Swipe down wardson Touc hContr olon the
leT-h andside ofthesteer ing wheel.
The Use Curre ntPressure sas New Refer-
ence Valuesmessag eis sho wnintheInstr u-
ment Displa y. #
Torestar t,pr es sTo uc hContr olon theleT-
han dside ofthesteer ing wheel.
The Tire Press. Monitor Restarted messageis
sho wnintheInstr ument Display.
Cur rent wa rning messa gesar edele tedand
th eye llo w0077 warning lampgoes out.
ATer youha ve been driving fora few minut es,
th esy stem checks whe ther thecur rent tire
pr ess ures arewit hin thespeci/ed rang e. The
cur rent tirepr ess ures areth en accep tedas
re fere nce values andmonit ored.
Be sureto also payatt ent ion tothefo llo wing rela-
te dto pic:
R Noteson tirepr essur e(/ page307) TT
ir ir
e pr e
pr essur essur
eloss w e
loss war ar
nin gsy st nin
gsy stem em
FF
unct ionoft unct
ionofthe tir he
tirepr e
pr essur essur
eloss w e
loss war ar
nin gsy st nin
gsy stem em
The tirepr essur eloss warning system warnsth e
dr iver by means ofdispla ymessag eswhen ther e
is ase vere tirepr ess ureloss . 312312
Whee
lsand tires

Sy
st Sy
stem limits em
limits
The system maybe impa ired orma yno tfunc tion
pa rticular lyin thefo llo wing situations:
R Incor rect refere nce values weretaught in
R Sudden pressur eloss caused byafo re ign
object penetrating thetir e, forex am ple
R Aneven pressur eloss onmor eth an one tire
occur s
The system has are str icte dor dela yedfun ction
par ticular lyin thefo llo wing situations:
R Poor ground condition s,e.g. snowor grav el
R Driving withsno wch ains
R When adoptingave ry spor tydrivi ng style wit h
high corner ing speeds orsudden acceleration
R Driving withahigh load
The tirepr essur eloss warning system isonl yan
aid. Itis thedr iver's responsi bilityto setth etir e
pr essur eto there commen dedcold tirepr essur e
suit able forth eoper ating situation andtocheck
it. Be
sureto also obser vethefo llo wing further rela-
te dsubjects:
R Noteson tirepr essur e(/ page307)
R Displ aymessag esabout thetir es
(/ page394)
R R
est est
ar ar
ting t ting
the tir he
tirepr e
pr essur essur
eloss w e
loss war ar
ning syst ning
system em
R R
eq eq
uir uir
ements: ements:
R The recommen dedtirepr essur eis cor rectl y
se tfo rth ere specti veoper ating status onall
wheels.
Re star tth etir epr essur eloss warning system in
th efo llo wing situations:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wly installed.
On-boar dcom puter:
4 Service 5
Tires #
Swipe down wardson theTo uc hContr olon the
leT-h andside ofthesteer ing wheel.
The Tire Pressure ControlSystem Active
Restart messageis sho wninthedispla y. #
Tobegin restar t,pr es sth eTo uc hContr olon
th eleT-h andside ofthesteer ing wheel.
The Tire Pressure NowOK?messag eis sho wn
in thedispla y. #
Sele ctYes . #
Tocon/r mrestar t,pr es sth eTo uc hContr olon
th eleT-h andside ofthesteer ing wheel.
The Run FlatIndicator Restarted messageis
sho wninthedispla y.
ATe ryo uha ve driven fora few minut es,the
tir epr ess ureloss warning system monit ors
th ese ttir epr essur esofall thetir es.
Be sureto also payatt ent ion tothefo llo wing rela-
te dto pic:
R Noteson tirepr essur e(/ page307) Wheel
sand tires
313 313

Lo
w Lo
wer er
ing t ing
the v he
vehic le ehic
leaTer aTer
awhee lc a
whee lc hang e hang
e RR
eq eq
uir uir
ements: ements:
R The newwhee lhas been installed
(/ page332). #
T T
o low o
lower t er
the v he
vehic le: ehic
le:plac eth era tche tont o
th ehe xagon nutofthejac kso that theletter s
"AB" arevisible andturncount er-cloc kwise. #
Tight enthewheel boltsevenl yin adiagonal
patt ernin theor der indicat ed1 to5 with
an initial maximum forc eof 59 lb-T (80Nm). #
Tight enthewheel boltsevenl yin adiagonal
patt ernin theor der indicat ed1 to5 with th
especi/ed tightening torq ue of96 lb-T
(1 30 Nm) . &
W W
AR NIN G AR
NIN GRisk ofacc iden tdu eto incor -
re ct tightenin gto rq ue
Th ewheels couldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed torq ue . #
Ensur eth at thewheel boltsorwheel
nuts aretight ened tothepr escr ibed
tight ening torq ue . #
Ifyo uar eno tsur e,do notmo vetheve hi-
cle. Contact aqu ali/ed special istwo rk-
shop andhave thetight ening torq ue
ch eckedimmediat ely. #
Chec kth etir epr essur eof thene wly installed
wheel andadjust itifnecessar y.
% The follo wing does notappl yif th ene wwheel
is an emer gency sparewheel. #
V V
ehicle swit ehicle
swit htir h
tir epr e
pr essur essur
eloss w e
loss war ar
nin gsy nin
gsy s- s-
t t
em: em:
Restar tth etir epr essur eloss warning
sy stem (/ page313). #
V V
ehicles wit ehicles
withatir h
atir epr e
pr essur essur
emonit e
monit or or
ing sy ing
sys- s-
t t
em: em:
Restar tth etir epr essur emonit oring sys-
te m (/ page312). Emer
g Emer
gency spar ency
sparewheel e
wheel NNo o
t t
es on t es
on the emer g he
emer gency spar ency
sparewheel e
wheel &
W W
ARNIN G ARNIN
GRisk ofaccident causedby
incor rect wheel andtiredimen sions
The wheel ortiresizes andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydi.er .The emer -
ge ncy sparewheel orspar ewheel cansigni/-
cantl yim pair drivi ng charact eristics ofthe
ve hicle.
To prev ent hazar dous situations: #
Drive car efull y. #
Neverinst allmor eth an one emer gency
spa rewheel orspar ewheel that di.er s
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel brie0y . 334334
Wheels
andtires

#
Donotdeactiv ateESP ®
. #
Have theemer gency sparewheel or
spar ewheel ofadi.er entsize replaced
at thenear estquali/ed special istwo rk-
shop. Thenewwheel mustha ve thecor -
re ct dimen sions. %
The de0at edemer gency sparewheel is
secur edintheemer gency sparewheel bagin
th ecar gocom partment andissecur edtothe
adju stable cargocom partmen t0oor inthe
lo we rposition.
Obser vethefo llo wing noteson remo vingan emer -
ge ncy sparewheel:
R Beforestow ing theemer gency sparewheel,
mak esur eth er eis no airleT inthetir e.
If necessar y,allo wtheair toescape.
R T T
o r o
release airfr elease
airfrom t om
the tir he
tire: e:
remo vetheva lve
cap ofthetir e.
R Press down theme talinser tin theva lve using
a point edobject, e.g.apen.
R Screw theva lve cap ontoth eva lve. %
V V
ehicles wit ehicles
withadjust h
adjust ablecar able
cargocom go
com par par
tment tment
0oor : 0oor
:alw aysst ow thede0at edemer gency
spa rewheel inthelowe rposition onthe
adju stable cargocom partmen t0oor .
Obser vethefo llo wing noteson installing anemer -
ge ncy sparewheel:
R The maximum permissibl espeed withan
emer gency sparewheel installed is50 mph
(80 km/h ).
R Donoteq uip theemer gency sparewheel with
sno wch ains.
R Replace theemer gency sparewheel aTersix
ye arsat thelat est, rega rdless ofwe ar.
R Chec kth etir epr essur eof theemer gency
spa rewheel installed. Correct thepr essur eas
necessar y.
% The speci/ed tirepr ess ureis stat ed on the
label oftheemer gency sparewheel.
% V V
ehicle swit ehicle
swit hatir h
atir epr e
pr essur essur
eloss w e
loss war ar
nin gsy nin
gsy s- s-
t t
em: em:
Ifan emer gency sparewheel isinst alled,
th etir epr essur eloss warning system canno t
function reliabl y.Onl yre star tth esy stem ag
ain when theemer gency sparewheel has
been replaced withane wwheel.
V V
ehicles wit ehicles
withatir h
atir epr e
pr essur essur
emonit e
monit or or
ing sy ing
sys- s-
t t
em: em:
Ifan emer gency sparewheel isinst alled,
th etir epr essur emonit oring system canno t
function reliabl y.Fo ra few minut esaTer an
emer gency sparewheel isins talled, thesy s-
te m ma yst ill displa yth etir epr essur eof the
re mo vedwheel. Onlyre star tth esy stem again
when theemer gency sparewheel hasbeen
re placed withane wwheel.
Be sureto also obser vethefo llo wing further rela-
te dsubjects:
R Noteson tirepr essur e(/ page307)
R Tire and Loadi ngInformatio nplacar d
(/ page314)
R Tire pressur eta ble (/ page309)
R Noteson installing tires (/ page325)
R Inst alling anemer gency sparewheel
(/ page330) Wheels
andtires
335 335

*
N N
O O
TE TE
Dam agedue toincor rect refrig er ant If
anon- appro vedre frig er ant isus ed ,th ecli-
mat econtr olsystem maybe damag ed. #
US US
A: A:
use onlyR‑134a refrig er ant . #
Canad a: Ca
nad a:useonl yR‑12 34yfre frig er ant . *
N NO O
TE TE
Dama getotheclimat econtr olsys-
te m due toincor rect refrig er ant comp res-
sor oil #
Onlyuse refrig er ant comp ressor oilthat
has been approvedby Mer cedes-Be nz. #
Donotmix theappr ovedre frig er ant
co mp ressor oilwithadi.er entrefrig er -
ant comp ressor oil. Wo
rkon theclimat econtr olsystem maybe car -
ri ed out onlyat aqu ali/ed special istwo rkshop. All
applic ableregula tions aswellas SAEstandar d
J639 must beadher edto.
The informa tion labelforth eclimat econtr olsys-
te m rega rding there frig er ant type and there frig-
er ant comp ressor oil(PAG oil) islocat edon the
inside ofthehood. Inf
ormation label(exa mp le-US A)
1 Hazar dand service warning symbo ls
2 Refrig er ant /llin gca pa city
3 Applicab lestand ards
4 PAGoil par tnumber
5 GWP(gl oba lwa rming potential )of there frig er -
ant used
6 Refrig er ant type Inf
orma tionlabe l(e xa mp le–Canada)
1 Hazar dand service warning symbo ls
2 Refrig er ant /llin gca pa city
3 Applicab lestand ards
4 PAGoil par tnumber
5 GWP(gl oba lwa rming potential )of there frig er -
ant used
6 Refrig er ant type
Sym bols1 indicat eth efo llo wing:
R Possible dangers
R Havin gmaint enanceworkcar ried out ata
qu ali/ed special istwo rkshop 348348
Te
ch nica ldat a

DisplaDispla
ymessag y
messag es es
IntrIntr
oduction oduction
NNo o
t t
es about displa es
about displaymessag y
messag es es
Displa ymessag esappear ontheinst rument dis-
pla y.
Displa ymessag eswithgr aphic symbols aresim-
pli/ed intheOper ator's Manual andmaydi.er
fr om thesymbols ontheinst rument displa y.The
instr umentdis pla ysh ow shigh- prior ity displa y
messag esinred. Cer tain displa ymessa gesar e
accom paniedbyawa rning tone.
Plea seactin accor danc ewit hth edispla ymes-
sag esand follo wtheadditional notesin theOper -
at or's Manual.
Fo rsome displaymessag es,symbols willalso be
sho wn:
R Õ Further informatio n
R 00A4 Hidedispl aymessag e
Wi th theleT-h andTouc hContr ol,youcan select
th ere specti vesymbol byswipin gto theleT or
ri ght. Press ing Õ displa ysfur ther information onth
emedia display.Press the00A4 symbol tohide
th edispla ymessag e.
Yo ucan hide low- prior ity displa ymessag esby
pr essing thebac kbutt onP ortheleT-h and
To uc hContr ol.The displa ymessa geswill then be
st or ed inthemessag ememor y.
Re ctif yth ecause ofadispla ymessag eas quickl y
as possible.
High-pr iority displa ymessa gescann otbe hidden.
The instrument displaywill showthese displa y
messag esper manentl yuntil thecause ofthedis-
pla ymessag ehas been recti/ed.
Callin gup sav Callin
gup saved displa ed
displa ymessag y
messag es es
On- boar dcom puter:
4 Service5
1Mes sage
If th er ear eno displa ymessag es,No Messag es
will appear ontheinst rument displa y. #
Scroll thro ugh thedispla ymessag esby swip-
ing upw ards ordown wardson theleT-h and
To uc hContr ol. #
T T
o e o
exit t xit
the messa g he
messa ge memor y e
memor y: :
pr ess thebac k
butt onP. Displa
ymessag esand warning/in dicatorlam ps
351 351

Occupant
safe Occupant
safety ty
DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions
0075
SRS Malfunction Service
Req uired *T
herestr aint system isma lfunc tion ing (/ page 38). &
W W
ARNIN G ARNIN
GRisk ofinjur ydue tomalfun ctionsinthere str aint system
Co mp onent sin there str aint system maybe acti vatedunint ention allyor notdeplo yas planned inan accident. #
Have there str aint system checkedand repair edimmediat elyat aqu ali/ed special istwo rkshop. 0075
Front LeftMalfunction
Servi ceRequire d(exa mp le) *T
hecor respond ingrestr aint system isma lfunc tion ing (/ page 38). &
W W
ARNIN G ARNIN
GRisk ofinjur ydue tomalfun ctionsinthere str aint system
Co mp onent sin there str aint system maybe acti vatedunint ention allyor notdeplo yas planned inan accident. #
Have there str aint system checkedand repair edimmediat elyat aqu ali/ed special istwo rkshop. 0075
Left SideCu rtai nAirb ag
Ma lfunction Service
Re quire d(exa mp le) *T
hecor respond ingrestr aint system isma lfunc tion ing (/ page 38). &
W W
ARNIN G ARNIN
GRisk ofinjur yor fata linjur ydue toamalf unct ioninthewindo wcur tain airbag
The windo wcur tain airbag mightbetrigg ered unint entionall yor might notbe trigg ered atall intheev ent ofan
accident. #
Have thewindo wcur tain airbag checkedand repair edimmediat elyat aqu ali/ed special istwo rkshop. 352352
Displ
aymessag esand warning/in dicatorlam ps

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Front PassengerAirbag Dis-
abl ed See Opera tor'sMan-
ual *T
hefront passen gerairbag hasbeen disabled even though anadult oraper son ofadult buildison thefront passeng er
seat. Ifadditional forc es areapplied totheseat, thewe ight thesy stem detects maybe toolow. &
W W
ARNI NG ARNI
NGRisk ofinjur yor fata linjur ydue toadisabl edfront passen gerairbag
If th efront passeng erairbag isdisabled, thefront passeng erairbag willnotbe deplo yedin theeve ntofan accid ent
and canno tper form itsintended protectiv efunction .
A per son inthefront passeng erseat could then, forex am ple, come intocont actwithth eve hicle' sint erior ,espe-
ciall yif th eper son issitting tooclose tothecoc kpit. #
Mak esur e,bo th bef oreand during thejour ney,that thestatus ofthefront passeng erairbag iscor rect. #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. #
Mak esur eth at no objects aretrapped underthefront passeng erseat. #
Chec kth estatus ofaut omatic front passeng erairbag shuto.(/ page47). #
Ifnecessar y,consul ta qu ali/ed special istwo rkshop immed iately.
Front Passeng erAirb ag
Enabl edSee Operator 's
Manu al *T
hefront passen gerairbag willbeenabled whiletheve hicle isin mo tion inthefo llo wing situations:
R Even when ach ild, aper son ofsmaller statur eor an object weighing lessthan thesy stem weight thre shold isloca-
te don thefront passeng erseat
R Even when thefront passeng erseat isno toccupied
The system mayde tect obje ctsorforc es that areaddin gto thewe ight applied totheseat. Displa
ymessag esand warning/in dicatorlam ps
353 353

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons &
W W
ARNIN G ARNIN
GRisk ofinjur yor deat hwhen usingach ild restr aint system while th efront passeng erairbag isena-
bled
If yo usecur each ild inach ild restr aint system onthefront passeng erseat andthefront passeng erairbag isena-
bled, thefront passeng erairbag candeplo yin theev ent ofan accident.
The child could bestruckby theairbag. #
Ensur e,bo th bef oreand during thejour ney,that thestatus ofthefront passeng erairbag iscor rect.
NEVER useare ar wa rdfacing child restr aint on ase at pro tected byan ACTIV EAIRBA Gin front ofit,DEA THor
SERIO USINJUR Yto theCHILD canoccur . #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. #
Mak esur eth at no objects aretrapped underthefront passeng erseat. #
Chec kth estatus ofaut omatic front passeng erairbag shuto.(/ page47). #
Ifnecessar y,consul ta qu ali/ed special istwo rkshop immed iately.
PRE-S AFEInoperat iveSee
Operator's Manual *
The PRE‑S AFE®
functions aremalfuncti oning. #
Consult aqu ali/ ed spec ialis two rkshop. 354354
Displ
aymessag esand warning/in dicatorlam ps

Sma
r Sma
rtK ey tK
ey DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Á
Obtain aNew Key *H
aveth eSmar tKey replaced. #
Consult aqua li/ed specialist workshop.
Á
Re place Key Batte ry *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(/ page68).
Á Key NotDetected (white
displa ymessag e) *T
heSmar tKey iscur rentl yunde tected. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Ifth eSmar tKey isstill notre cogn ized,place itin themar kedspace forst ar ting withth eSmar tKey (/ pag e139). Displa
ymessag esand warning/in dicatorlam ps
355 355