park MERCEDES-BENZ B-CLASS HATCHBACK 2021 Owners Manual

Br
Br
ak
ak es
es W
W
ar
ar ning/indicat
ning/indicat or lamp P
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
0024
Electric parking brake indi-
cator lamp (red)
0024
The electric parking brake
(yellow) indicator lamp *T
he red electric parking brake indicator lamp 0ashes or is lit.
The yellow electric parking brake indicator lamp is also lit in theev ent of a malfunction. #
Notethe messages on the instrument displa y.
004D
Brake system warning lamp
(yellow) *T
he yellow brake warning lamp is lit while theve hicle is running. &
W WARNI NG
ARNI NGRisk of an accident due toa brake system malfunction
If th e brake system is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed specialist workshop. #
Adjust your speed and drive on carefull y,leaving a suitable distance totheve hicle in front. #
Ifth e inst rument display sho wsa displ aymessage, obser veit. 488
488
Display message
s andwarning/indicator lamps

1, 2, 3 ...
1, 2, 3 ...
4MA
4MA TIC
TIC
Fu nction................................................ 191
12 V batt 12 V batt ery ery
see On-board electrical system bat tery (12 V)
12 V soc ket
12 V soc ket
see Soc ket (12 V)
360° Camera
360° Camera
Care...................................................... 348
Fu nction................................................ 260
Opening the camera co ver (r eversing
camera)................................................. 263
Selecting a view.....................................2 63
Switching automatic operation on/o.
(r ev ersing camera)................................. 263 A A
A/C function
A/C function Activating/deactivating (control panel)... 158
Ac tivating/deactivating (MBUX multi-
media system)....................................... 158
ABS (Anti-loc ABS (Anti-loc k Br
k Br aking Syst
aking Syst em)
em).................... 225 A A
cceler
cceler ation
ation
see Kickdown
A
A ccident and Br
ccident and Br eakdo
eakdown Manag
wn Manag ement
ement
Mercedes me connect........................... 319
A
A cous
coustic loc tic loc king
kingv
ver
er i/cation
i/cation signal
signal
Ac tivating/deactivating............................ 82
A
A cous
coustic pr tic pr esence indicat
esence indicat or (sound g
or (sound gener-
ener-
at
at or)
or)
No tes..................................................... 166
A
A cous
coustic V tic Vehicle Indication
ehicle Indication
Sound generator.................................... 166
A
A ctiv
ctiv e Blind Spo
e Blind Spo t Assist
t Assist
Brake application................................... 254
Fu nction................................................ 252
System limi tations.................................. 252
Tr ailer operatio n.................................... .254
A
A ctiv ctiv e bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otection)
ection)
Operation.............................................. 337
Re setting............................................... 337
A A ctiv
ctiv e Br
e Br ak
ake Assist
e Assist
Fu nction/no tes...................................... 244
Setting................................................... 248 A
A
ctiv
ctiv e Dist
e Dist ance Assis
ance Assis t DIS
t DISTR
TRONIC
ONIC
Ac tive Emer gency Stop Assist................ 243
Calling up a speed................................. 237
Fu nction................................................ 235
Inc reasing/decreasing speed................. 237
Maximum design speed.......................... 182
Ro ute-based speed adap tation............... 240
Selecting............................................... 237
St oring a speed...................................... 237
Switching o./deactivating.................... .237
Switching on/activating......................... 237
System limitations.................................. 235
A A ctiv
ctiv e Emerg
e Emerg encySt
ency Stop Assist
op Assist ...................... 243
A
A ctiv
ctiv e headlam
e headlam ps
ps........................................ .141
A
A ctiv
ctiv e Lane K
e Lane K eeping Assist
eeping Assist
Ac tivating/deactivating.......................... 257
Ac tivating/deactivating thewa rning....... 257
Fu nction................................................ 255
Setting the sensitivity.............................2 57
System limits......................................... 255
Tr ailer operatio n.................................... .255
A
A ctiv
ctiv e P
e P ar
arking Assist
king Assist
Exiting a parking space. ......................... 271
Fu nction................................................ 268 Ind
ex
495
495

A
A
ut
ut omatic mirr
omatic mirr or f
or folding function
olding function
Ac tivating/deactivating.......................... 156
A
A ut
ut omatic tr
omatic tr ansmission
ansmission
DIRECT SELECT le ver............................. 187
Drive prog rams...................................... 182
DY NAMIC SELECT switch....................... 182
Engaging drive position.......................... 189
Engaging reve rsege ar............................ 188
Kickdown............................................... 190
Manual gear changing........................... .189
Selecting park position........................... 188
St eering wheel gearshiT paddles............ 189
Tr ansmission position displ ay................. 187
Tr ansmission position s........................... 187
A
A ut ut omatic tr
omatic tr ansmission (pr
ansmission (problem) oblem)
see Transmission (problem)
Axle load
Axle load Perm issible............................................ 394
Tr ailer operatio n..................................... 410 B
B
Bag hook Bag hook..................................................... 129
Ball neck
Ball neck
Folding out/in........................................ 274 B B
AS (Br
AS (Br ak
ake Assis
e Assist Syst t System)
em)........................... 225
Batt
Batt ery
ery
see High-voltage battery
Batt
Batt er
ery (high-v
y (high-v olt
oltag
age on-boar
e on-boar d electr
d electrical
ical
syst
syst em)
em)
see High-voltage battery
Batt
Batt er
ery (ke
y (ke y)
y)
Re placing................................................. 83
Batt
Batt er
ery (v
y (v ehicle)
ehicle)
Charging (Remo teOnline)..................... .171
No tes..................................................... 361
No tes (starting assis tance and charg-
ing)........................................................ 362
Batt
Batt er
ery oper
y oper ation
ation......................................... 166
Belt
Belt see Seat belt
Bicy
Bicy cle r
cle r ack
ack
Load capacit y........................................ 410
Tr ailer operatio n.................................... .277
Blind Spo
Blind Spo t Assist
t Assist
Ac tivating/deactivating.......................... 255
Fu nction................................................ 252
System limi tations.................................. 252 Blow
Blow
er
er
see Clima tecont rol
BlueTEC
BlueTEC see AdBlue ®
Bonnet
Bonnet Function (active bonnet)......................... 337
Opening/closing.................................... 338
Re setting (active bonn et)........................ 337
Boo Boo t lid
t lid
see Tailgate
Br
Br ak
ak e Assis
e Assist Syst t System
em
see BAS (Brake Assist System)
Br
Br ak
ak e
e0uid
0uid
No tes..................................................... 403
Br
Br ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion)....................................................... 227
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 225
Ac tive Brake Assist................................. 244
Ad aptive brake lights.............................. 229
BAS (Brake Assist System).................... .225
Driving tips............................................1 73498 498
Index

Ac
tivating/deactivating the A/C func-
tion (control panel).................................1 58
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 158
Ac tivating/deactivating the synchro-
nisation function (control panel).............1 59
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 159
Air-recirculation mode (with /ne parti-
cle pre/lter)...........................................1 59
Au tomatic control................................. .158
Calling up the air conditioning menu....... 158
Demisting the windscreen...................... 157
Demisting windo ws................................ 159
Fr ont air vents........................................ 164
Immediate pre-entry clima tecont rol....... 162
No te...................................................... 157
Pre-entry climate control at depa rture
time.......................................................1 61
Pre-entry climate control using theke y... 160
Re ar air vents......................................... 165
Re sidual heat......................................... 159
Setting (MBUX multimedia system)......... 158
Setting the air distribution...................... 157
Setting the air0ow.................................. 157 Setting
theve hicle interior temp era-
ture....................................................... 157
St ationary heater/ ventilation................. 163
Switching there ar wind owheater
on/o.................................................... 157
THERM ATIC cont rol panel...................... 157
THERMOTRONIC control panel............... 157
Ve ntilating theve hicle (con venience
opening).................................................. 96
Clot
Clot hes hook hes hook ................................................ 129
Co-dr
Co-dr iv
iver airbag
er airbag shut
shuto.
o.
see Automatic co-driver airbag shuto.
Coc
Coc kpit
kpit
Overview.............................................. 6, 10
Co.ee
Co.ee cup symbol
cup symbol
see ATTENTION ASSIST
Collision det
Collision det ection (park
ection (parked v
ed vehicle)
ehicle)
Information............................................ 221
Combination switch
Combination switch .................................... .140
Com
Com ponent-speci/c
ponent-speci/c inf
infor
ormation
mation................... 394
Com
Com put
puter
er
see On-board computer
Conv
Conv enience closing
enience closing...................................... 97 Conv
Conv
enience opening
enience opening..................................... 96
Coolant (engine)
Coolant (engine) Levelch eck............................................ 342
No tes..................................................... 404
Cooling
Cooling see Climate control
Cop
Cop yr
yright
ight....................................................... 45
Cor
Cor ner
nering light
ing light............................................. 142
Cr
Cr oss
oss tr
tra1c
a1c (w
(war
arning)
ning)
see Manoeuvring assis tance
Cr
Cr oss
oss Tr
Tra1c
a1c Alert
Alert........................................ 273
Cr
Cr osswind Assist
osswind Assist
Fu nction/no tes...................................... 226
Cr
Cr uise contr
uise contr ol
ol
Ac tivating............................................... 233
Buttons.................................................. 233
Calling up a speed................................. 233
Deactivating........................................... 233
Fu nction................................................ 232
Maximum design speed.......................... 182
Re quirements:....................................... 233
Selecting............................................... 233
Setting a speed...................................... 233 Index
501 501

St
oring a speed...................................... 233
System limitations.................................. 232 D
D
Dam
Dam ping adjus
ping adjus tment
tment.................................... 257
Dashboard
Dashboard see Cockpit
Dashcam
Dashcam Notes..................................................... 309
Selecting a USB device......................... .310
St arting/stopping a video recording...... .310
Dat
Dat a acq
a acq uisition
uisition
Ve hicle..................................................... 42
Dat
Dat a pr ot
a pr otection r
ection r ights
ights
Data storag e............................................ 45
Dat
Dat a st
a st or
or age
age
Data pr otection rights.............................. 45
Electronic control units............................ 42
Online services........................................ 44
Ve hicle..................................................... 42
Deactiv
Deactiv ating t ating the alar
he alar m (AT
m (ATA)
A)........................ .103
Dealer
Dealer ship
ship
see Quali/ed specialist workshop Declar
Declar
ation of conf
ation of conf or
ormity
mity
Elect romagnetic compatibilit y.................. 29
Impor ter addresses.................................. 36
Jack.........................................................36
Speci/c absor ption rate........................... 29
TIREFIT kit................................................ 37
Wi reless vehicle component s................... 29
Decor Decor ativ
ative f
e foil (cleaning ins
oil (cleaning instr tructions)
uctions)........... 347
DeN
DeNOx ag Ox ag ent
ent
see AdBlue ®
Des
Destination entry tination entry
Entering a POI or addres s....................... 305
Det
Det ecting inatt
ecting inatt entiv
entiveness
eness
see ATTENTION ASSIST
Diagnos
Diagnostics connection tics connection.................................. 38
Diesel
Diesel Low outside tempe ratures...................... 399
No tes..................................................... 399
Digit
Digit al Owner's Manual
al Owner's Manual.................................. 22
Dingh
Dingh yto
y to wing
wing
see Tow- bar system
Dipped beam
Dipped beam Changing bulbs..................................... .149 DIRECT SELECT lev
DIRECT SELECT lev
er
er
Engageing reve rsege ar.......................... 188
Engaging drive position.......................... 189
Engaging neutral................................... .188
Engaging park position automaticall y...... 188
Fu nction................................................ 187
Selecting park position........................... 188
Displa
Displa y (car
y (care)
e)............................................... 349
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Home sc reen.........................................2 89
Operating.............................................. 290
Displa
Displa y (on-boar
y (on-boar d com
d comput
puter)
er)
Displa yson the inst rument displa y......... 285
Displa
Displa y in t
y in the windscr
he windscr een
een
see Head-up display
Displa
Displa y message
y message
Calling up (on-board computer).............. 412
No tes..................................................... 412
Displa Displa y messag
y messag es
es
ç - - - km/h .................................... .453
00CB - - - km/h..................................... 452
h - - - km/h..................................... 452
006F 2nd seat row, leT Not loc ked......... 437 502
502
Index

:
Intelligent Light System inopera-
tive........................................................ 421
Á Key being initialised Please wait.... 418
Á Key not de tected (red display
message).............................................. .418
Á Key not de tected (white display
message).............................................. .418
: LeT dipped beam (e xample).......... 419
0075 LeT windowbag malfunction
Consult workshop (e xample).................. 415
: Malfunction See Owner's Man-
ual.........................................................4 20
00D7 Malfunction Visit workshop ........... 429
0080 Malfunction.................................. 430
00D7 Malfunction.................................. 429
ð Maximum speed exceeded ............ 455
ç O................................................. 453
00D9 O................................................. 451
0024 Parking brake See Owner's
Manual..................................................4 460080
Performance se verely limited........ 430
00B4 Please wait Depressurising tank .... 431
003B Pre-entry clima tecont rol (via
ke y) available again aTer engine start..... 425
003B Pre-ent ryclimate cont rol (via
ke y) inoperati veHV-battery low .............. 425
0077 Rectify tyre pressure ..................... 471
Ú Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 474
0024 Release parking brake ...................449
009E Replace air cleaner ....................... 440
Á Replace key.................................. 417
00D4 Reser vefuel le vel.......................... 440
0075 Restraint sys. malfunction Con-
sult workshop ....................................... .413
003D See Owner's Manual..................... 467
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 434
Ù Steering malfunction See Own-
er's Manual ............................................ 435 Ù
Steering malfunction Stop
immediately See Owner's Manual ........... 434
0080 Stop Switch engine o.................. .430
003D Stop vehicle Lea veengine run-
ning ....................................................... 469
003D Stop vehicle See Owner's Man-
ual......................................................... 468
ç suspended .................................... 453
: Switch o. lights............................ 421
: Switch on headlamps .................... 421
00B4 Tank is dep ressurised Ready for
re fuelling ............................................... 431
00B4 Tank ventilation Malfunction
Consult workshop ................................. .431
á temp orarily una vailable Camera
view restric ted....................................... 460
¸ temp orarily una vailable Sensors
dirty....................................................... 459
Ú Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 474 504 504
Ind
ex

00BD
Top up coolant See Owner ’s
Manual.................................................. 439
00B2 Top up washer 0uid...................... .437
u Towing not permitted See Own-
er's Manual ............................................ 426
0080 Trans. oil overheated Drive on
with care................................................ 444
0024 Turn on the ignition torelease
th e parking brake ................................... 449
Ú .................................................... 474
0072 Vehicle is operational Switch o.
ignition before exiting............................. 432
0077 Warning tyre defect....................... 471
0077 Wheel sensor(s) missing ................ 470
Ú XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 475
"Electric" drive prog ram cur rently
una vailable............................................. 428 Ac
tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 458
Ac tive Blind Spot Assist inoperative........ 458
Ac tive Blind Spot Assist not available
when towing a trailer See Owner's
Manual.................................................. 458
Ac tive bonnet malfunction See Own-
er's Manual............................................ 435
Ac tive Brake Assist Functions cur-
re ntly limi ted See Owner's Manual .........465
Ac tive Brake Assist Functions limi ted
See Owner's Manual.............................. 466
Ac tive Distance Assist available again ..... 454
Ac tive Distance Assist cur rently
una vailable See Owner's Manual ............ 453
Ac tive Distance Assist inoperative.......... 454
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual ............ 458
Ac tive Lane Keeping Assist inoperative... 459 Ac
tive Steering Assist cur rently
una vailable due tomultiple emer-
ge ncy stops........................................... 456
Ac tive Steering Assist cur rently
una vailable See Owner's Manual ............ 455
Ac tive Steering Assist inoperative...........4 55
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual ............ 421
Ad aptive Highbeam Assist inoperative ....4 22
Ad aptive Highbeam Assist Plus cur-
re ntly una vailable See Owner's Manual ... 422
Ad aptive Highbeam Assist Plus inop-
erative.................................................. .422
Anti-theT alarm system Malfunction ....... 437
Apply brake todeselect Park (P) posi-
tion....................................................... .441
Apply brake toselect D or R ...................442
Apply brake toselect R .......................... 442
Au xiliary battery malfunction (red dis-
play message) ....................................... .446 Index
505 505

Au
xiliary battery malfunction (white
displ aymessage) .................................... 445
Beginning emer gency stop..................... 456
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 457
Blind Spot Assist inoperative.................. 457
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 457
Cann otstart engine See Owner's
Manual................................................. .438
Charging fault Please change charging
me thod See Owner's Manual .................427
Charging me thod cur rently una vaila-
ble Please try again or change charg-
ing me thod............................................ 427
Check brake pads See Owner's Man-
ual........................................................ .450
Check tyre pressures then restart Run
Flat Indicator......................................... 473 Clutch
overheated Avoid pulling away
until thewa rning goes out...................... 445
Cruise control and Limiter inoperative.... 452
Cruise control inoperative...................... 452
Cruise control o.................................... 452
Depress clutch fully tostart engine........ 445
Device de tected at diagnostics con-
nection See Owner's Manual................. .467
Drive system Malfunction Stop Switch
engine o............................................... 441
Drive system Malfunction Visit work-
shop ...................................................... 441
Fr ont-passenger airbag disabled See
Owner's Manual .................................... .415
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .416
Hazard warning lamps malfunctioning .... 423
Head-up display cur rently una vailable
See Owner's Manual.............................. 433
Head-up display inoperative ...................434Limiter inoperative................................. 452
Limiter passive....................................... 452
N permanently active Risk of
vehicle
ro lling....................................................4 42
Not possible tounlock charging cable
See Owner's Manual.............................. 426
Only elect ric drive available Power
limited................................................... 427
Only select Park (P) when vehicle is
stationary.............................................. 441
Pa rking Assist and PARKTRONIC inop-
erative See Owner's Manual................... 461
Pa rking lock inoperative Apply the
parking brake ........................................ .444
Place theke y in the mar ked space
See Owner's Manual.............................. 419
PRE-SAFE inoperative See Owner's
Manual.................................................. 417
Re duce speed........................................ 472 506 506
Index

Re
duced drive system per form ance
See Owner's Manual.............................. 428
Re versing not poss. Consult workshop ... 443
Risk of vehicle rolling away App ly
parking brake See Owner's Manual ........ 444
Risk of vehicle rolling awayPa rking
brake not applied See Owner's Manual ... 450
Risk of vehicle rolling Driver door
open and transmission not in P .............. 442
Ru n Flat Indica tor inoperative................. 473
Speed limit (winter tyres) XXX km/h .......455
Speed Limit Assist cur rently una vaila-
ble See Owner's Manual........................ 454
Speed Limit Assist inoperative................ 454
Te aching in transmission comple te......... 444
Te aching in transmission Operate
selector le ver Brake for XX seconds
Risk of vehicle rolling ............................. 444
To shiT out of P or N,depress brake
and start engine.................................... .441 To
switch o. the engine, press the
St art/ Stop button for at least 3 sec-
onds or 3 times...................................... 438
Tr a1c Sign Assist cur rently una vaila-
ble See Owner's Manual........................ 456
Tr a1c Sign Assist inoperative................. 456
Tr ansmission Malfunction ....................... 443
Tr ansmission Malfunction Stop............... 443
Tr ansmission Malfunction Visit work-
shop ...................................................... 445
Ty re press. monitor cur rently una vaila-
ble......................................................... 469
Ty re press. monitor inoperative .............. 469
Ty re press. monitor inoperative No
wheel sensors ........................................ 470
Ty re pressure Check tyres ...................... 472
Ty re(s) ove rheated .................................. 472
Ve hicle not cur rently being charged
Charging station fault............................. 427
Wi per malfunctioning .............................437 Wi
thout changing gear, consult work-
shop ............................................. .429, 442
Wi thout starting engine again, consult
wo rkshop ............................................... 429
Dist
Dist ance contr ance contr ol
ol
see Active Distance Assist DISTRONIC
DIS DIS TR
TR ONIC ONIC
see Active Distance Assist DISTRONIC
Door
Door Additional door loc k................................. 84
Child saf ety lock (rear door )..................... 78
Locking/unlocking (emer gency key)........ .88
Opening (from inside).............................. .85
Unlo cking (from inside)............................ 85
Door contr
Door contr ol panel
ol panel......................................... 18
Dra
Dra wbar
wbar
see Tow- bar system
Dr
Dr iv
ive Awa
e Away Assi st
y Assi st........................................ .272
Dr
Dr iv
ive position
e position
Engaging................................................ 189
Dr
Dr iv
ive pr
e pr ogr
ogram display
am display .................................. 183 Index
507
507

Dr
Dr
iv
ive pr
e pr ogr
ograms
ams
see DYNAMIC SELECT
Dr
Dr iv
iver's seat
er's seat
see Seat
Dr
Dr iving abr
iving abr oad
oad
Light adjustment (l owbeam).................. 138
Dr
Dr iving safe
iving safe ty syst
ty system
em
ABS (Anti-lock Braking System)............. .225
Ac tive Brake Assist................................. 244
Ad aptive brake lights.............................. 229
BAS (Brake Assist System).................... .225
Cameras................................................2 23
EBD (Electronic Brake forc e Distribu-
tion).......................................................2 27
ESP ®
Crosswind Assist.......................... 226
ESP ®
trailer stabilisation........................ 227
Overview................................................ 224
Ra dar and ultrasonic sensor s................. 223
Re sponsibility......................................... 223
ST EER CONTROL................................... 227
Dr
Dr iving syst iving syst em
em
Suspension with adaptive damping
adjustment............................................ 257 Dr
Dr iving syst
iving syst em
em
see 360° Camera
see Active Blind Spot Assist
see Active Distance Assist DISTRONIC
see Active Emer gency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assist
see Active Steering Assist
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise cont rol
see Driving saf ety sy stem
see HOLD function
see Limi ter
see Parking Assist PARKTRONIC
see Reversing camera
see Speed Limit Assist
see Start-o. assist
see Tra1c Sign Assist
Dr
Dr iving tips iving tips
Driving abroad (low beam light adjust-
ment)..................................................... 138
Gene ral driving tips................................1 73
Ru nning-in no tes.................................... 172 Dr Dr
iving tips
iving tips
see Recuperation
Dr ow
Dr ow siness det
siness det ection
ection
see ATTENTION ASSIST
Dynamic handling contr
Dynamic handling contr ol syst
ol syst em
em
see ESP ®
(Electronic Stability Prog ram)
D
D YN
YNAMIC SELECT AMIC SELECT
Ad aptive damping adjustmen t................257
Calling up the fuel consum ption indi-
cator...................................................... 185
Con/guring drive prog ram I................... .184
Displaying engine data........................... 185
Displaying vehicle dat a........................... 185
Drive prog ram displa y............................ 183
Drive prog rams..................................... .182
Fu nction................................................ 182
Ope rating.............................................. 183
Selects the drive prog ram...................... 183 E E
E10
E10............................................................. .397
Easy entr
Easy entr y f
y feature
eature
Fu nction/no tes...................................... 116
Setting.................................................. .117 508
508
Index