2021 MERCEDES-BENZ A-CLASS SALOON radio

Symbol
Symbol
DesignationF
Designation Function
unction
Z SettingsS electtohave further options shown. Settings can be made tothefo llowing additional
functions, forex ample:
R Navigation and tra1c announcements
R Frequency /x function
R Radio additional text
R Emer gency warnings
The setting options are countr y-dependent.
2 Full screen Selecttoswitch totheDA B slide sh ow.
This function is not available in all countries.
8 Silent functionSelecttoswitch o. the sound.
f Store radio stations Select tosave a station in the presets.
4 Station lis tS electtohave the station list shown.
ª Search Selecttosear chinthe active menu. You can search for artists, genres or moods, for
ex ample. MBUX multimedia system
321
321

A
A
dditional functions of T
dditional functions of T uneIn r
uneIn r adio
adio
% Arelatively lar gevolume of data can be trans-
mitted when using TuneIn Radio. Symbol
Symbol
DesignationF
Designation Function
unction
Z SettingsThefollowing additional settings are available in
th eTu neIn Radio menu:
R Selecting stream
R Logging on toor out of theTu neIn account
ß Favourites Select during playbacktosave the station cur-
re ntly set as a favo urite.
6/8 Play/PauseSelecttostart, stop or continue pl aybac k.
5 Brow se Selecttochoose a category and then a radio sta-
tion. Depending on
the frequency band selected, di.er-
ent functions are available toyou.
Select the desired frequency band in thera dio
menu head runner. Calling up T
Calling up T
uneIn R
uneIn Radio
adio R R
eq
eq uir
uir ements:
ements:
R A Mercedes me account is available. R
The vehicle is connected with the Mercedes
me account.
R The TuneIn Radio service is activated in the
Mercedes me Portal.
R The data volume is available. 322 322
MBUX multimedia system

Depending on
the countr y,data volume may
need tobe pur chased.
R Afast In tern et connection for data transmis-
sion free of inter fere nce.
% Data volume can be pur chased dir directl
ectl y fr
y from
om
a mobile phone ne
a mobile phone ne tw
twor
ork pro
k pro vider
vider viathe
Mercedes me Portal.
% The functions and services are countr y-
dependent. For more information, consult a
Mercedes-Benz service centre.
Multimedia system: 4 © 5
Radio #
Select TuneIn Radio .
The TuneIn menu appears. The last station set
starts playing.
% The connection quality depends on the local
mobile phone reception. Sound se
Sound se
ttings
ttings Ov
Ov
er
ervie
vie w of functions in t
w of functions in t he sound menu
he sound menu The setting options and functions
available
depend on the sound system /t ted. You can /nd out which sound system is /t
tedinyour vehicle in
th e Digital Owner's Manual.
S
S t
tandar
andar d sound syst
d sound syst em and A
em and Adv
dvanced sound sy
anced sound sy s-
s-
t
t em
em
The following functions are available:
R Equaliser
- Treble, mid-range and bass
R Balance and fader
R Volume
- Automatic adjustment
Bur
Bur mest
mest er
er®
®
surr
surr ound sound syst
ound sound syst em and
em and
Bur
Bur mest
mest er
er ®
®
high-end 3D surr
high-end 3D surr ound sound syst
ound sound system
em
The following functions are available:
R Equalise r:
- Treble, mid-range and bass
R Balance and fader
R Sound focus
R VIP seat (Burmes ter®
high-end 3D sur round
sound system only)
R Sound pro/les R
Volume:
- Automatic adjustment MBUX multimedia system
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323

If one or more tyre sizes precede a tyre pressure,
th efo llowing tyre pressure information is only
va lid forth ose tyre sizes and their respecti veload
condition.
If th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures. Fuel
consum ption may then increase slightl y.
The load conditions "pa rtially laden" and "fully
laden" are de/ned in theta ble for di.erent num-
bers of passengers and amounts of luggage. The
actual number of seats may di.er from this. T T
yr
yr e pr
e pr essur
essur e monit
e monit or
oring syst
ing syst em
em F
F
unction of t
unction of t he tyr
he tyre pr
e pressur
essur e monit
e monit or
oring syst
ing syst em
em
The system checks the tyre pressure and the tyre
te mp erature of the tyres /t tedtotheve hicle by
means of a tyre pressure sensor.
The tyre pressure and the tyre temp erature
appear in the on-board computer (/ page 366).
If th ere is a substantial pressure loss or if the tyre
te mp erature is excessive, you will be warned with
display messages (/ page 458) ortheh wa
rning lamp in the inst rument cluster
(/ page 482).
The tyre pressure monitoring system is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation.
In most cases, the tyre pressure monitoring sys-
te m will automatically update the new refere nce
va lues aTer you ha vechanged the tyre pressure.
Yo u can, ho wever, also update there fere nce val-
ues byrestarting the tyre pressure monitoring
system manually (/ page 367).
Syst
Syst em limits em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R incor rect refere nce values were ta ught in
R sudden pressure loss caused byafo re ign
object penetrating the tyre, forex ample
R there is a malfunction caused byano ther radio
signal source Chec
Chec king t
king t he tyr
he tyr e pr
e pressur
essur e wit
e with t
h the tyr
he tyr e pr
e pressure
essure
monit
monit or
oring sy
ing sy st
stem
em
R
R eq
eq uir
uir ements:
ements:
R The vehicle is switched on.
On-board computer: 4 Service 5
Tyres
One of thefo llowing displa ysappears:
R Current tyre pressure and tyre temp erature of
th e individual wheels: R
Tyre pressures will be displayed after a few
minutes of driving 366 366
Wheels and tyres

N
N
o
ot
tes on t
es on t ec
echnical data
hnical data
* NO
NOTE
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The
tech nical data was de term ined in accordance
with EU Directives. The data stated only applies to
ve hicles with standard equipment. You can obtain
fur ther information from a Mercedes-Benz Service
Centre.
Onl Onl y f
y for cert
or cert ain countr
ain countr ies:
ies:you can /n dvehicle-
speci/c vehicle data in theCO C documents (CER-
TIFIC ATE OF CONFORMITY). These documents
are deli vered with your vehicle. On-boar
On-boar
d electr
d electronics
onics N
No
ot
tes on t
es on t am
amper
per ing wit
ing wit h t
h t he engine electr
he engine electr onics
onics *
N
NOOTE
TE Prematu rewe arthro ugh improper
maintenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in validated. #
Always ha veworkon the engine elec-
tronics and related components car ried
out at a quali/ed specialist workshop. T
T
w
w o-wa
o-wa y r
y radios
adios N
No
ot
tes on
es on /tting
/tting tw
two-wa
o-wa y r
y radios
adios &
W
WARNING
ARNING Risk of accident due to
improper workon two-w ayradios
If two-w ayradios are manipulated or retro/t-
ted incor rectl y,the electromagnetic radiation
from the two-w ayradios can inter fere with the
ve hicle elect ronics and jeopardise the operat-
ing saf ety of theve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a quali/ed specialist workshop. &
W
WARNING
ARNING Risk of accident due to
improper operation of two-w ayradios
If yo u use two-w ayradios in theve hicle
improper ly,th eir electromagnetic radiation
can disrupt theve hicle's elect ronics. This is
th e case in thefo llowing situations, in particu-
lar:
R The two-w ayradio is not connected toan
ex terior aerial.
R The exterior aerial is /tted incor rectly or is
not a lo w-re0ection aerial.
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-re0ection exterior aerial /t-
ted at a quali/ed specialist workshop. #
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe lo w-
re 0ection exterior aerial. Te
ch nical data
381
381

*
N
NO
OTE
TE Inva lidation of the operating permit
due tofailure tocomply with the inst ruc-
tions for installation and use The operating permit may be in
validated if the
inst ructions for installation and use of two-w ay
ra dios are not obser ved. #
Only use appr oved frequency bands. #
Obser vethe maximum permissible out-
put po wer in these frequency bands. #
Only use appr oved aerial positions. 1
Front roof area
2 Rear roof area
3 Rear wings
4 Boot lid
On vehicles with a panoramic sliding sunroof, /t-
ting an aerial tothe front or rear roof area is not
permitted. On
there ar wings, it is recommended that you /t
th e aerial on the side of theve hicle closest tothe
cent reofthero ad.
Use Tech nical Speci/cation ISO/TS 21609 (Road
Ve hicles – "EMCs for installation of aTermar ket
ra dio frequency transmitting equipment") when
re tro/tting two- wayra dios. Comply with the legal
re qu irements for de tach able parts.
If yo ur vehicle has /ttings for two-w ayradio equip-
ment, use the po wer supply and aerial connectors
pr ov ided in the pre-ins tallation. Obser vethe man-
ufacturer's supplements when /tting.
T
T w
w o-wa
o-wa y r
y radio tr
adio tr ansmission output
ansmission output
The maximum transmission output (PEAK) at the
base of the aerial must not exceed theva lues in
th efo llowing table. 382
382
Te
ch nical data

F
F
r
req
eq uency band and maximum tr
uency band and maximum tr ansmission out-
ansmission out-
put
put F
F
r
req
eq uency band
uency band Maximum tr
Maximum transmis-
ansmis-
sion output
sion output
Short wave
3 - 54 MHz 100 W
4 m frequency band
74 - 88 MHz 30 W
2 m frequency band
144 - 174 MHz 50 W
Te rrestrial Trunked
Ra dio (TETRA)
380 - 460 MHz 10 W
70 cm frequency band
420 - 450 MHz 35 W
Tw o-w ayradio
(2G/3G/4G) 10 W The
following can be used in theve hicle without
re strictions:
R two- wayra dios with a maximum transmission
output of up to100 mW
R RF transmitters with transmitter frequencies in
th e 380 - 410 MHz frequency band and a
maximum transmission output of up to2 W
(TETRA)
R mobile phones (2G/3G/4G)
There are no restrictions when positioning the
aerial on the outside of theve hicle forth efo llo w-
ing frequency bands:
R Terrestrial Trunked Radio (TETRA)
R 70 cm frequency band
R 2G/3G/4G R R
egulat
egulat or
ory r
y r adio
adio identi/cation
identi/cation and not
and notes
es R
R egulat
egulat or
ory r
y r adio
adio identi/cation
identi/cation of small com
of small compo-
po-
nents
nents Manufacturer information about
radio-based vehi-
cle components can be found using thekey
phrase "Regulatory radio identi/cation" in the Dig- ital Owner's Manual in
theve hicle, on the internet
and in the app. R
R
egulat
egulat or
ory r
y r adio
adio identi/cation
identi/cation – Indonesia
– Indonesia Manufacturer information about
radio-based vehi-
cle components can be found using thekey
phrase "Regulatory radio identi/cation – Indone-
sia" in the Digital Operator's Manual in theve hi-
cle, on the internet and in the app.
% These are not small components. Information
about small components can be found using
th eke y phrase "Regulatory radio identi/cation
of small components". F F
urt
urt her
her com
com ponent-speci/c
ponent-speci/c inf
infor
ormation
mation Fu
rther component-speci/c information can be
fo und using theke y phrase "fur ther component-
speci/c information" in the Digital Owner's Man-
ual in theve hicle, on the internet and in the app. Te
ch nical data
383
383

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Á
Key not detected (white dis-
play message) *T
hekey is cur rently unde tected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot for starting with theke y (/ page 160).
Á Key not detected (red dis-
play message) *T
hekey cann otbe de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you switch o. theve hicle:
R You can no longer start theve hicle.
R You cannot centrally lock theve hicle. #
Ensu rethat theke y is in theve hicle.
If th eke y de tection function has a malfunction due toa st rong radio signal source: #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Place theke y in the slot for starting the engine with theke y (/ page 160).
Á Key being initialised Please
wait *T
hevehicle is processing in order to teach in the new key. #
Wait until processing is comple te. Display messages and
warning/indicator lamps
407
407