2021 MERCEDES-BENZ A-CLASS HATCHBACK radio

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
#
Stop vehicle Leave engine
running *T
he 12 V battery charge leve l is too lo w. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Leavetheve hicle running #
Ifth e display message disappears: drive on. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. T T
yr
yr e pr
e pr essur
essur e monit
e monit or
or Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
being received. The tyre pressure monitoring system is temp orarily una vailable.
The tyre pressure monitoring system will restart au tomatically as soon as the cause has been recti/ed. #
Drive on.
Tyre press. monitor inoper-
ative *T
he tyre pressure moni toring system is malfunctioning. &
W WARNI NG
ARNI NGThere is a risk of an accident if the tyre pressure monitoring system is malfunctioning
The tyre pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tyres.
Ty res with insu1cient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring system checked at a quali/ed specialist workshop. 466
466
Displ
aymessages and warning/indicator lamps

Engine data
Engine data
Displaying............................................. .181
Engine electr
Engine electr onics
onics
No tes..................................................... 389
Engine number
Engine number............................................. 392
Engine oil
Engine oil
Additives................................................ 399
Capacity................................................ 400
Checking the oil le vel using the on-
board computer.....................................3 34
MB-F reigabe or MB-Appr oval................. .400
Quality................................................... 400
To pping up............................................ .334
ERA
ERA -GL -GLON
ONASS tASS t es
est modet mode
St arting/ending.................................... .323
Err
Err or message
or message
see Display message
ESC (Electr
ESC (Electr onicSt
onic Stability Contr
ability Contr ol)
ol)
see ESP ®
(Elect ronic Stability Prog ram)
ESP
ESP ®
®
Crosswind Assis t.................................... 223
Tr ailer stabilisatio n................................. 223 ESP
ESP
®
®
(Electr
(Electronic St
onic Stability Pr
ability Pr ogr
ogram)
am)
Ac tivating/deactivating.......................... 224
Fu nction/no tes...................................... 222
EU type approv
EU type appr oval number
al number ............................. 392
Ext
Ext er
erior lighting
ior lighting
Car e...................................................... 342
Ext
Ext er
erior lighting
ior lighting
see Lights F
F
F
F atigue det
atigue det ection
ection
see ATTENTION ASSIST
F
F ir
ir e e
e e xtinguisher
xtinguisher.......................................... 347
F
F irs
irst-aid kit t-aid kit (soT
(soTsided)
sided)................................. 347
Flat to
Flat towing
wing
see Tow- bar system
Flat tyre
Flat tyre MOExtended tyres................................. 348
No tes..................................................... 348
TIREFIT kit.............................................. 350
Wheel chang e........................................ 378
Floor mats
Floor mats................................................... 132 F F
oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s................. 220
Fr
Fr ee
ee soTw
soTw are
are................................................. 45
Fr
Fr eq
eq uencies
uencies
Mobile phone......................................... 390
Tw o-w ayradio........................................ 390
Fr
Fr ont airbag (dr
ont airbag (dr iv
iver
er , fr
, fr ont passeng
ont passeng er)
er).............. 53
Fr
Fr ont passeng
ont passeng er seat
er seat
see Load compartment
see Seat
Fr Fr ont wheel ar ch
ont wheel ar ch
Fi tting/removing the co ver..................... 144
Fr
Fr ont wheel arc
ont wheel arc h cov
h cover
er
Fi tting/removing.................................... 144
F
F uel
uel
Additives................................................ 396
Diesel.................................................... 396
E10........................................................ 395
Fu elreser ve........................................... 397
Low outside temp eratures...................... 396
Pe trol..................................................... 395
Quality (diesel )....................................... 396
Quality (petrol)....................................... 395
Re fuellin g.............................................. .188 Index
507 507

Ins
Ins
tr
trument displa
ument displa y and on-boar
y and on-boar d com-
d com-
put
put er
er
Fu nction/no tes...................................... 277
Int
Int ellig
ellig ent Light Syst
ent Light Syst em
em
Ac tivating/deactivating.......................... 138
Ac tive headlamps................................... 137
Ad aptive Highbeam Assis t...................... 139
Ad aptive Highbeam Assist Plu s............... 140
City lighting............................................ 138
Cornering light....................................... 138
Mo torw ay mode.................................... .138
Overview................................................ 137
Int Int ellig
ellig ent oper
ent oper ating-mode s
ating-mode str trat
at egy
egy
see Route-based operating-mode strategy
Int
Int er
erior lighting
ior lighting
Ad justing............................................... 142
Ambient lighting.................................... .142
Re ading lamp......................................... 142
Switch-o. delay time.............................. 143
Int
Int er
erior pr ot
ior pr otection
ection
Fu nction................................................ 101
Priming/deactivating............................. 101
Int
Int er
erne
ne t r
t radio
adio
see TuneIn iPhone
iPhone
®
®
see Smartphone integ ration
ISOFIX c
ISOFIX c hild seat anc
hild seat anc hor
hor
Seats suitable for attaching...................... 68
ISOFIX c
ISOFIX c hild seat secur
hild seat secur ing syst
ing syst em
em
Fi tting...................................................... 70 J
J
Jack Jack Declaration of conformity......................... 36
Storage location.................................... .377
Jum Jum p-st
p-st ar
art connection
t connection
General no tes....................................... .355 K
K
K K e ey
y
Ac oustic locking veri/cation signal.......... .83
Ac tivating/deactivating pre-entry cli-
mate control.......................................... 156
Battery..................................................... 84
Deactivating a function............................ 83
Emer gency key......................................... 84
Energy consum ption................................ 83
Fu nction overview.................................... 82 Ke
yring attachment................................. 84
Problem................................................... 85
Unlocking setting..................................... 83
KEYLESS-GO KEYLESS-GO Deactivating a function............................ 83
Locking/unlocking theve hicle................. 87
Problem................................................... 88
Unlocking setting.................................... .83
Kic Kic kdo
kdo wn
wn
Using..................................................... 186
Knee airbag
Knee airbag.................................................... 53 L
L
Lamp
Lamp see Interior lighting
Lam
Lam p (ins
p (instr trument displa
ument displa y)
y)
see Warning/indicator lamp
Lane det
Lane det ection (aut
ection (aut omatic)
omatic)
see Active Lane Keeping Assist
Lane K
Lane K eeping Assist
eeping Assist
see Active Lane Keeping Assist
Language
Language Notes..................................................... 297 510
510
Index

see
Telephone
Model type
Model type see Vehicle identi/cation plate
MOExt
MOExt ended tyr
ended tyr es
es....................................... .348
Mot
Mot orwa
or wa y mode
y mode .......................................... .138
MUL
MUL TIBEAM LED
TIBEAM LED.......................................... 137
Multifunction st
Multifunction st eer
eering wheel
ing wheel
Overview of buttons............................... 279
Multifunction st
Multifunction st eer
eering wheel
ing wheel
see Steering wheel
Multimedia syst
Multimedia syst em
em
see MBUX multimedia system N
N
N
N a
avig
vig ation
ation
Ac tivating............................................... 300
No tes..................................................... 299
Overview................................................ 301
Sh ow ing/hiding the menu...................... 300
Na Na vig
vigation
ation
see Destination entry
see Map
see Route N
N eutr eutr al
al
Engaging................................................ 184
N
Noise oise
Wheels and tyres................................... 368
Wheels/tyres......................................... 368 O O
Occupant safe
Occupant safe ty
ty
see Airbag
see Automatic co-driver airbag shuto.
see Automatic measures aTer an accident
see Child seat
see Pets in theve hicle
see Post-collision brake
see PRE-SAFE ®
(anticipa tory occu-
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restraint system
see Seat belt
Oil Oil see Engine oil
On-boar
On-boar d com
d comput
puter
er
Displa yingthe service due dat e.............. 330 Head-up display menu............................ 283
Instrument displa
y................................. 282
Menu overview.......................................2 79
Operating.............................................. 279
On-boar
On-boar d diagnos d diagnostics int tics interf
erface
ace
see Diagnostics connection
On-boar
On-boar d electr
d electrical syst
ical syst em batt
em batter
ery (12 V)
y (12 V)
Charging................................................ 357
Re placing.............................................. .358
St arting assis tance............................... .357
On-boar On-boar d electr
d electronics
onics
Engine electronics................................. 389
No tes..................................................... 389
Tw o-w ayradios...................................... 389
on-demand f on-demand f eature
eature
Ac tivating................................................. 26
No tes...................................................... .26
Online ser
Online ser vices
vices
Data storag e............................................ 44
Online ser
Online ser vices
vices
see In-Car O1ce
Open-sour
Open-sour ce
cesoTw
soTw are
are.................................... 45 514
514
Index

S
S
t
teer
eer ing wheel
ing wheel
Ad justing (manual ly).............................. .112
Buttons..................................................2 79
Care...................................................... 343
St eering wheel heater............................ 113
St
St eer eer ing wheel
ing wheel g
gear
ear shiT
shiT paddles
paddles.................. 185
St St eer eer ing wheel heat
ing wheel heat er
er
Ac tivating/deactivating.......................... 113
St ow
St ow ag
age ar
e ar eas
eas
see Loading
see Stow age space
St ow
St ow ag
age com
e com par
partments
tments
see Loading
see Stow age space
St ow
St ow ag age space
e space
Armrest................................................. 119
Centre console..................................... .119
Door...................................................... 119
Glo vecompartmen t............................... 119
S
S tr tr ee
ee t names and house numbers
t names and house numbers
Displaying.............................................. 303
Sugg
Sugg es
estionstions
Con/guring............................................ 293 Sulphur cont
Sulphur cont
ent
ent........................................... 395
Surr
Surr ound lighting
ound lighting
Switching on/o..................................... 142
Surr
Surr ound V
ound V iew
iew
see 360° Camera
Suspension
Suspension Adaptive damping adjustmen t................254
Damping characteristics........................ .254
S
S VHC (subst
VHC (subst ances of v
ances of ver
ery high concer
y high concer n)
n)........41
Switc
Switc h-o.
h-o.dela
delay time
y time
Exterior.................................................. 141
Interior.................................................. .143
Sync
Sync hr
hronisation function
onisation function
Ac tivating/deactivating (control panel)... 155
Ac tivating/deactivating (MBUX multi-
media system)....................................... 155
Syst
Syst em se
em se ttings
ttings
Overview of the system settings menu.... 294
Re set function (MBUX multimedia sys-
te m)....................................................... 298
Syst
Syst em se
em se ttings
ttings
see Language T
T
T
T ailg
ailg ate
ate
Closing................................................... .91
Opening................................................... 90
Unlocking (emer gency key)...................... 91
T
T ailpipes (car ailpipes (car e)
e)............................................ .342
T
T ak
ak e-bac
e-bac k of end-of-lif
k of end-of-lif e v
e vehicles
ehicles
Pr otection of the environment.................. 24
T
T ank cont
ank cont ent
ent
Ad Blue ®
................................................ .399
Fu el....................................................... 397
Re ser ve(fuel)........................................ .397
T
T ec
ec hnical data
hnical data
Axle load (trailer operation).................... 408
Component-speci/c information............ 391
Fa stening points (t railer hitch)................ 406
Information............................................ 389
Mounting dimensions (trailer hitch)........ 406
No tes (trailer hitch)................................ 405
Overhang dimension (trailer hitch)......... .406
Re gula tory radio identi/cation (Indo-
nesia).................................................... 391
Re gula tory radio identi/cation of
small component s.................................. 391 Index
521 521

To
ngue weight........................................ 407
To wing capacity.................................... .406
T
T r
railer oper
ailer oper ation
ation
Ac tive Blind Spot Assist.......................... 251
Ac tive Lane Keeping Assist..................... 252
Bicycle rack ........................................... 274
Coupling up/uncoupling a trailer............ 272
Fo lding the ball neck out/in................... 271
No tes..................................................... 270
Soc ket................................................... 272
Tr
Tr ailer st
ailer st abilisation
abilisation
Fu nction/no tes...................................... 223
Tr
Tr ansmission
ansmission
Engaging neutral.................................... 184
Tr
Tr ansmission (pr
ansmission (pr oblem)
oblem)................................ 185
Tr
Tr ansmission position displ ay
ansmission position displ ay....................... 183
Tr
Tr anspor
anspor ting
ting
Ve hicle.................................................. 362
Tr
Tr im element (Car
im element (Car e)
e)...................................... 343
T
T uneIn
uneIn
Calling up.............................................. 328
T
T ur
ur n signal indicat
n signal indicat or
or
Ac tivating/deactivating.......................... 136 T
T
ur
ur n signal lights
n signal lights
Changing bulbs (rear)............................. 145
Tw
Tw o-wa
o-wa y r
y radios
adios
Fr equencies........................................... 390
No tes on ins tallation.............................. 389
Tr ansmission output (maximum )............. 390
T
T ype approv
ype appr oval number (EU)
al number (EU) ........................... 392
T
T yr
yr e
ein0ation
in0ation com
compr
pressor
essor
see TIREFIT kit
T
T yr
yr e pr
e pr essure
essure
Checking (tyre pressure moni toring
system).................................................. 371
No tes..................................................... 369
Re starting the tyre pressure loss
wa rning system...................................... 373
Re starting the tyre pressure monitor-
ing system............................................. 372
TIREFIT kit..............................................3 50
Ty re pressure loss warning system
(function)............................................... 372
Ty re pressure monitoring system
(function)............................................... 371
Ty re pressure table................................ .370 T T
yr
yr e pr
e pr essur
essur e loss w
e loss w ar
arning syst
ning syst em
em
Fu nction................................................ 372
Re starting.............................................. 373
T
T yr
yr e pr
e pr essur
essur e monit
e monit or
oring sy st
ing syst em
em
Checking the tyre pressures................... 371
Checking the tyre temp eratur e............... 371
Fu nction................................................ 371
Re starting.............................................. 372
T
T yr
yr e pr
e pr essur
essur e t
e table
able ...................................... .370
T
T yr
yr e t
e t em
em per
per ature
ature
Checking (tyre pressure monitoring
system)..................................................3 71
Ty re pressure monitoring system
(function)............................................... 371
T
T yr
yr e tr
e tr ead
ead.................................................... 368
T
T yr
yr e-c
e-c hang
hang e t
e tool kit
ool kit
Overview................................................ 377
T
T yr
yr es
es
Checking............................................... 368
Checking the tyre pressure (tyre pres-
sure monitoring system)......................... 371
Fi tting.................................................... 382
Flat tyre................................................. 348
Inter changing......................................... 376 Index
523 523