radio MERCEDES-BENZ GLA 2020 User Guide

The
battery mustbeconn ected andcharged.
Otherwise, you:
R cann otturn theSmart Keytoposition 0048in
the ignition lock.
R cann otrelease theelectric parking brake.
R cann otshift thetrans mission toposition 005C.
The funct ionofthe electric parking brakeand
the parking lockisdependent onthe on-board
voltage.
If the on-board voltageislow orifthere isa
system malfunct ion:
R the electric parking brakemaynotbe
applied incert aincircumst ances,or
R itmay nolonger bepossible toshift the
trans mission toposition 005D
Switch offnon- essent ialconsumer s,e.g. the
radio.
Deact ivatetheautomatic lockingfeature
before thevehicle istowed (Ypage 199). You
could otherwise belocked outwhen pushing
or towing thevehicle. <002C0051005600570044004F004F004C0051004A001200550048005000520059
004C0051004A>
thetowing eye
Installing thetowing eye The
bracket sfor the screw-in towingeyeare
located inthe bumpers. Theyareatthe rear
and atthe front ,under covers 0043.
X Remove thetowing eyefrom thestowage
space. The
towing eyeislocated withthevehicle
tool kitunder thecargo compart mentfloor
(Y page 288).
Vehicles withtheTIREFIT kit:the towing eye
is beneath thetire inflation compressor
(Y page 288).
X Press themark oncover 0043inwards inthe
direction ofthe arrow.
X Take cover 0043offthe opening.
X Scr ew inthe towing eyeclock wisetothe
stop.
Removing thetowing eye X
Unsc rewand remove thetowing eye.
X Attach cover 0043tothe bumper andpress
until itengages.
X Place thetowing eyeinthe stowage well
beneath thecargo compart mentfloorinthe
cargo compart ment(Ypage 288).
X Vehicles withtheTIREFIT kit:put back the
tire inflation compressor (Ypage 288). Towing
thevehicle withthefront
axle raised
Observe theimportant safetynoteswhen tow-
ing your vehicle withthefront axleraised
(Y page 299).
Only vehicles without4MATICcanbe
towed withthefront axleraised.
! Vehicles
with4MATI Cmust notbetowed
with either thefront orthe rear axle raised,
as doing sowill damage thetrans mission.
Vehicles with4MATI Cmay either betowed
away withboth axles onthe ground orbe loa-
ded upand trans ported.
! The
ignition mustbeswitched offifthe
vehicle isbeing towed withthefront axle
raised. Otherwise, ESP®
may intervene and
damage thebrake system.
X On
vehicles withKEYL ESS-GO orthe
KEYL ESS-GO startfunction: youmust use
the Smart Keyinstead ofthe Start /Stopbut-
ton (Ypage 126).
X Make surethatthevehicle isstation ary.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock. 300
Towing
andtow-sta rtingBr eakdown assistance

The
tirepressure monitordoes notwarn youof
an incorr ectlysettire pressure. Observethe
not eson the recomm endedtirepressure
(Y page 308).
The tirepressure monitorisnot able towarn
you ofasudden lossofpressure, e.g.ifthe
tire ispenetr atedbyaforeign object.In the
event ofasudden lossofpressure, bringthe
vehicle toahalt bybraking carefully. Avoid
abrupt steeringmovemen ts.
The tirepressure monitorhas ayellow warning
lamp inthe instr ument cluster forindicatin g
pressure lossoramalfunct ion.Whether the
warning lampflashes orlights upindicates
whether atire pressure istoo low orthe tire
pressure monitorismalfunct ioning:
R ifthe warning lampislit cont inuously, the
tire pressure onone ormore tiresissignifi-
cant lytoo low. Thetirepressure monitoris
not malfunct ioning.
R ifthe warning lampflashes foraround a
minute andthen remains litconst antly, the
tire pressure monitorismalfunct ioning.
In addition tothe warning lamp,amessage
appears inthe multifunct iondisplay .Observe
the inform ationondisplay messages
(Y page 224).
It may take uptoten minutes foramalfunc-
tion ofthe tire pressure monitortobe indica-
ted. Amalfunct ionwill beindicated bythe tire
pressure warninglampflashing forapprox-
imately oneminute andthen remaining lit.
When themalfunct ionhas been rectified, the
tire pressure warninglampgoesoutafter a
few minutes ofdriving.
The tirepressure valuesindicated bythe on-
board computer maydiffer fromthose meas-
ured atagas station withapressure gauge.
The tirepressures shownbythe on-board
computer refertothose measured atsea level.
At high altitudes, thetire pressure valuesindi-
cated byapressure gaugearehigher than
those shown bythe on-board computer. Inthis
case, donot reduce thetire pressures.
The operation ofthe tire pressure monitorcan
be affect edbyinter ferenc efrom radio trans-
mitt ingequipment (e.g.radio headphones,
two-way radios)thatmay bebeing operated in
or near thevehicle. Checking
thetire pressur eelectroni-
cally X
Make surethattheSmart Keyisin position
0048 inthe ignition lock(Ypage 125).
X Press 0059or0065 onthe steerin gwheel
to select theServ. Serv.
menu.
X Press the0063 or0064 button toselect
Tire Pressure Tire
Pressure.
X Press the0076 button .
The current tirepressure ofeach tireis
shown inthe multifunct iondisplay .
If the vehicle wasparked forlonger than
20 minutes, theTire pressure willbe Tire
pressure willbe
displayed afterdriving afew minutes displayed
afterdriving afew minutes
message isshown.
Aft erateach- inprocess, thetire pressure
monit orautomatically detectsnew wheels or
new sensors. Aslong asaclear allocation of
the tire pressure valuetothe individual wheels
is not possible, theTire Pressure Monitor Tire
Pressure Monitor
Active Active
message isshown instead ofthe tire
pressure display.The tirepressures are
already beingmonitored.
If an emergenc yspare wheel ismounted, the
system maycontinue toshow thetire pressure
of the wheel thathasbeen removed forafew
minutes. Ifthis occurs, notethat thevalue dis-
played forthe position wherethespare wheel
is fitt ed isnot thesame asthe current tire
pressure ofthe emergenc yspare wheel.
Tire pressur emonitor warning mes-
sages If
the tire pressure monitordetect sa pressure
loss inone ormore tires,awarning message is
shown inthe multifunct iondisplay .The yellow
tire pressure warninglampthenlights up.
R Ifthe Please Correct TirePressure Please
Correct TirePressure
message appearsinthe multifunct iondis-
play, thetire pressure inat least onetireis
too low. Thetirepressure mustbecorrec ted
when theopportunit yarises.
R Ifthe Check TirePressure Check
TirePressure message
appears inthe multifunct iondisplay ,the tire
pressure inone ormore tireshasdropped
significant ly.The tires must becheck ed.
R Ifthe Tire Pressure WarningTire Tire
Pressure WarningTire
Failure Failure
message appears,thetire pressure
in one ormore tireshasdropped suddenly.
The tires must becheck ed. 314
Tir
epr essureWheels andtires

Radio
typeapprov alfor the tire pres -
sure monitor Co
untry Radio
typeapprov alnumb er USA FCC
ID:MRXMW 2433A
FCC ICID:MR XGG4 Thisdev ice
comp lies with part15 ofthe
FCC rules and with license
exem ptRSS stand ardsof Indu s-
try Canad a.Ope rationissu bject
to the followi ng condi tions.(1)
Thi sdev icemay notcause
ha rmfu linter ference, and(2)
Thi sdev icemus tacce ptany
inter ference rece ived,incl uding
inter ference that may cause
und esired operation. Lepre sent
ap pa rei lest confor med'indu s-
trie Canad aap plica bles aux
ap pa rei lsrad ioexem ptsde
li cence. L'exploitati onest
au thori seeauxdeu xcondi tions
su iva ntes. (1).L'a ppare ilne doit
pa spro duire debro uillag e, et
(2) L'autisateu rde l'app are il
doi tacce ptertoutbro uillag e
rad ioelectri quesu bi,meme sile
bro uillag eest suscep tibled'e n
comp romettrelefoncti onne-
ment. WARNING :Ch ang esor
mod ificati ons notexpr essively
ap pro ved bythe party respons i-
bl e for comp liance couldvoi d
the users authori tyto ope rate
the equipment. Theterm "IC:"
bef ore theradiocerti fication
numb eronly signifi esCanad a
techni calspe cificati ons were
met.
FCC ID:MR XMC34MA4 This
dev icecomp lies with part15 of
the FCC rules and with license
exem ptRSS stand ardsof Indu s-
try Canad a.Ope rationissu bject
to the followi ng condi tions.(1)
Thi sdev icemay notcause
ha rmfu linter ference, and(2)
Thi sdev icemus tacce ptany
inter ference rece ived,incl uding
inter ference that may cause
und esired operation. Lepre sent
ap pa rei lest confor med'indu s-
trie Canad aap plica bles aux
ap pa rei lsrad ioexem ptsde Co
untry Radio
typeapprov alnumb er li
cense .L'e xploitati onest
au thori seeauxdeu xcondi tions
su iva ntes. (1).L'a ppare ilne doit
pa spro duire debro uillag e, et
(2) L'autisatue rde l'app are il
doi tacce ptertoutbro uillag e
rad ioelectri quesu bi,meme sile
bro uillag eest suscep tibled'e n
comp romettrelefoncti onne-
ment. WARNING :Ch ang esor
mod ificati ons notexpr essively
ap pro ved bythe party respons i-
bl e for comp liance couldvoi d
the users authori tyto ope rate
the equipment. Theterm "IC:"
bef ore theradiocerti fication
numb eronly signifi esCanad a
techni calspe cificati ons were
met. Ca
nad a IC:
2546A-MW 2433A
IC:2 546A-G G4Thisdev icecom-
pl ieswi th part15 ofthe FCC
rul es and with license exempt
RSS stand ardsof Indu stry Can-
ad a.Ope rationissu bject tothe
fol lowi ng condi tions.(1) This
dev icemay notcauseharmfu l
inter ference, and(2)Thisdev ice
mus tacce ptany inter ference
rece ived,incl uding inter ference
that may causeund esired oper-
ati on. Lepre sent apparei lest
confor med'indu strieCa nad a
ap plica bles auxap parei lsrad io
exem ptsdelicense .L'e xploita-
tion estauthori seeauxdeu x
condi tions suiva ntes. (1).L'a p-
pa rei lne doitpa spro duire de
bro uillag e, et (2) L'autisateu rde
l'a pp are ildoi tacce ptertout
bro uillag erad ioelectri quesu bi,
meme sile bro uillag eest sus-
cep tibled'e ncomp romettrele
foncti onnem ent.WAR NING :
Ch ang esormod ificati ons not
expr essivelyap pro ved bythe
pa rty respons ible for comp li-
ance couldvoi dthe users
au thori tyto ope rate theequip-
ment. Theterm "IC:"bef ore the
rad iocerti fication numb eronly
sig nifi esCanad atechni calspe c-
ifi cati ons weremet. 31
6 Tire
press ureWheelsand tires

Infor
mation reg ardin gtech nicalda ta
i The
datast ate dher espec ifically refers to
a veh iclewit hstand ard equipm ent.Con sult
an auth orizedMer cedes- BenzCen terfor the
dat afor allveh iclevar iantsand trim levels. Veh
icle elect ronics Inst
alling two- way radio sand mob ile
ph ones (RFtrans mitters ) G
WAR
NING
The electromag netic radi ation from two-way
radi oscan interf ere withth eveh icleelec -
tr on ics iftwo -way radiosare man ipulat edor
ret rofitte dinc orrectly. This could jeopar dize
th eoper ating safetyof theveh icle. Ther eis
a ris kof an acc iden t.
You should haveall wor kon elec trical and
elec tron icco mpo nentscar ried outata
qualif iedspec ialist workshop. G
WAR
NING
If you incorrectly oper atetwo-way radiosin
th eveh icle, theelec tromag netic radi ation
may interf ere withth eveh icleelec tron ics ,
for exampl eif:
R thetwo -way radiois no tco nn ectedto an
ex terio rant enna
R theex terio rant enna isno tco rrec tly
moun tedor isno tlow- reflec tion
This could jeopar dizeth eoper ating safetyof
th eveh icle. Ther eis aris kof an acc iden t.
Hav eth elow- reflec tion exterio rant enna
ins talled ataqualif iedspec ialist workshop.
Alw ays conn ecttwo -way radiostothelow-
ref lec tion exterio rant enna when operating
in theveh icle.
! The
oper ating per mit may beinvalidat edif
th eins truct ionsfor installation and useof
two -way radiosare notobs erved. In
part icular,thefol lowin greq uire men ts
must becompli edwith:
R on lyappr ovedwave bandsmay beused
R obs erveth emax imum permis sible output
in these wave bands
R on lyappr ovedant enna pos ition smay be
used
Ex ce ssiv elev els ofelec tromag netic radi ation
may causedamag eto your healthand the
healt hof other s.Usi nganexterio rant enna
tak esintoacc oun tcur ren tsc ien tific disc us-
sion srel ating tothepos sible healthhaz ards
th at may result from elec tromag netic fie lds. Ap
pro ved antenna pos ition s
0043 Fron troo farea
0044 Rear roofarea
0087 Rear fender
i On
veh icles wit hpan oram aroo fwit h
power tilt/s lidin gpan el,installingan
ant enna tothefron tor rear roofarea isno t
per mitted.
On therear fender s,itis rec omm ended to
pos ition theant enna on theside oftheveh i-
cle closes tto thece nter oftheroad .
Use theTec hnical Specific ation ISO/ TS 21609
when retrofitti ng RF trans mitters (Road Vehi-
cle s-EM Cguide lines for installation ofaft er-
mar ketradi ofrequen cytrans mitting equip-
men t).Obs erveth elegal require men tsfor
acc essory part s.
If your vehiclehas installation sfor two -way
radi oequipm ent,use thepower supplyor
ant enna conn ection sint ended foruse withth e
basic wiring.Be sureto obs erveth eman ufac-
tur er'sSup plem entwhen installing.
De viat ionswit hres pec tto frequen cyban ds,
max imum trans mis sion output sor ant enna
pos ition smust beappr ovedby Mer cedes-
Ben z. Veh
icle electr onics
333Technical data Z

The
maximum transmission output(PEAK)at
the base ofthe anten namust notexceed the
following values: Frequency
band Maximu
m
tra nsmission
outpu t Short
wave
3 -54 MHz 100
W 4
m waveband
74 -88 MHz 30
W 2
m waveband
144 -174 MHz 50
W Trunked
radiosystem/
Tetra
380 -460 MHz 10
W 70
cm waveband
400 -460 MHz 35
W Mobile
commun ications
(2G/3G/4G) 10
W The
following canbeused inthe vehicle with-
out restr iction s:
R RF trans mitterswith amaximum transmis-
sion output ofup to100 mW
R RF trans mitterswith trans mitterfrequencies
in the 380 -410 MHz frequency bandanda
maximum transmission outputofup to2W
(trunk edradio system/Tet ra)
R Mobile phones (2G/3G/4G)
There isno restr iction foranten napositions on
the outside ofthe vehicle forthe following fre-
quency bands:
R Trunked radiosystem/Tet ra
R 70 cm waveband
R 2G/3G/4 G Identification
plates Vehicle
identification platewith
vehicle identification number(VIN) X
Open thedriver's door.
You willsee vehicle identific ationplate0043. Example:
vehicleidentific ationplate(USA only)
0043 VIN
0044 Paint code Example:
vehicleidentific ationplate(Canada
only)
0043 VIN
0044 Paint code
i The
data shown onthe vehicle identific a-
tion plate isused onlyasan example. This 334
Identification
platesTechnical data