2021 MERCEDES-BENZ B-CLASS HATCHBACK warning light

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
003D
Electrical fault warning lamp *T
hered electrical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the instrument displa y.
00D4
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser vewarning lamp lights up while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel. Display messages and
warning/indicator lamps
487
487

Dr
Dr
iving syst
iving syst ems
ems W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
L
Wa rning lamp for distance
wa rning function *T
he red distance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obstacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the distance.
Fu nction of Active Brake Assist (/ page 244).
Ó Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
Due todirty sensors or a malfunction, the system is not available or thera nge of functions is restric ted. #
Notethe messages on the instrument displa y.
ê
Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
The system is switched o. or thera nge of functions has been automatically restric ted.
This may be the case if the driver is not wearing a seat belt or ano ther driving system has been activated. #
Obser vethe no tes on Active Brake Assist (/ page 244).490
490
Display messages and
warning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
00E5
ESP ®
wa rning lamp lights up *
The yellow ESP ®
wa rning lamp is lit while theve hicle is running.
ESP ®
is malfunctioning.
Other driving systems and driving sa fety systems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the instrument displa y. &
W
WARNI NG
ARNI NGRisk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot carr y outvehicle stabilisation. In addition, other driving saf ety sy stems are
swit ched o.. #
Drive on carefull y. #
Have ESP ®
ch ecked at a quali/ed specialist workshop. 00BB
ESP ®
OFF warning lamp *
The yellow ESP ®
OFF warning lamp is lit while theve hicle is running.
ESP ®
is deactivated.
Other driving systems and driving sa fety systems may also be inoperative. &
W
W ARNING
ARNING Risk of skidding when driving with ESP ®
deactivated
ESP ®
does not act tostabilise theve hicle. The availability of fu rther driving saf ety sy stems is also limi ted. #
Drive on carefull y. #
Deactivate ESP ®
only for as long as the situation requ ires. 492
492
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
0077
Ty re pressure monitoring
system warning lamp lights
up *T
he yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has de tected tyre pressure loss in at least one of the tyres. &
W
WARNING
ARNING Risk of an accident due toinsu1cient tyre pressure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle in accordance with the tra1c conditions. #
Check the tyre pressure and the tyres. 494
494
Display messages and
warning/indicator lamps

EBD (Electronic Brake
forc e Distribu-
tion).......................................................2 27
HOLD function....................................... 228
Limited braking e.ect (salt-treated
ro ads)................................................... .173
Ne w/replaced brake linings/brake
discs...................................................... 172
Po st-collision brak e.................................. 60
Ru nning-in no tes.................................... 172
Br
Br ak ak es
es
see Recuperation
Br
Br aking assist
aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Assistance overview. ................................ 20
To w- starting........................................... 370
To wing away.......................................... 367
Tr anspo rting theve hicle........................ .368
Wheel chang e........................................ 383
Br
Br ea kdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 282 C
C
Calls
Calls Mercedes me......................................... 314
Camera
Camera
Information............................................ 223
Camera Camera see 360° Camera
see Dashcam
see Reversing camera
Car key
Car key
see Key
Car w Car w ash
ash
see Care
Car w
Car w ash (car
ash (car e)
e)............................................ 343
Car
Car -t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 308
Care
Care 360° camera......................................... 348
Air-water duct........................................ 343
Automatic car wash.............................. .343
Carpet................................................... 349
Decorative foil........................................ 347
Display................................................... 349 Exterior lighting...................................... 348
Head-up display..................................... 349
High-pressure cleaner............................3
45
Pa int...................................................... 346
Plastic trim............................................3 49
Re alwo od/trim elements..................... .349
Re versing camera..................................3 48
Ro of lining............................................. 349
Seat belt................................................ 349
Seat co ver............................................. 349
Sensors.................................................3 48
St eering wheel....................................... 349
Ta ilpipes................................................ 348
Tr ailer hitc h............................................ 348
Ve hicle soc ketfo rth e high-voltage
battery................................................... 348
Wa shing byhand.................................... 346
Wheels/rims.......................................... 348
Wi ndo ws................................................ 348
Wi per blades.......................................... 348
Car
Car pe pet (Car
t (Car e)
e)............................................... 349
Changing bulbs Changing bulbs Dipped beam......................................... 149
Fitting/removing co ver (front wheel
ar ch )...................................................... 148 Index
499 499

St
arting thech arging process (alter-
nating cur rent, mode 2/3)..................... 206
St arting thech arging process (direct
cur rent, mode 4).................................... 211
St ow ing thech arging cable.................... 198
Ty pe....................................................... 407
Vo ltage types......................................... 407
High-v
High-v olt
oltag
age on-boar
e on-boar d electr
d electrical syst
ical syst em
em
Indicator lamps on vehicle soc ket........... 205
Hill St
Hill Star
art Assist
t Assist............................................ 229
HOLD function
HOLD function
Function/no tes...................................... 228
Switching on/o..................................... 228
Home scr
Home scr een (media displa
een (media displa y)
y)
Overview................................................ 289
Hooking t
Hooking t he lugg
he luggag
ag e net
e net.............................. .130
Hybr
Hybr id syst
id syst em
em
Con/guring settings via the multime-
dia system............................................. 301
Manual swit ch-o................................... .167
Hybr
Hybr id syst
id syst em
em
see Battery operation
see Electric drive I I
i-Size c
i-Size c hild seat secur
hild seat secur ing syst
ing system
em
Fi tting...................................................... 70
Seats suitable for attaching...................... 69
Identi/cation
Identi/cation plate
plate
Engine................................................... 394
Ve hicle.................................................. 394
Ignition key
Ignition key
see Key
Immediat Immediat e pr
e pre-entr
e-entr y climat
y climat e contr
e control
ol............ .162
Immobiliser
Immobiliser ..................................................1 02
Im
Im plied w
plied w arr
arranty
anty
Ve hicle..................................................... 41
Im
Im port
port er addr
er addr esses
esses
Wi reless components...............................36
In-Car
In-Car O1ce
O1ce
Fe atures................................................ 320
Indicat
Indicat or lamp
or lamp
see Warning/indicator lamp
Individual dr
Individual dr iv
ive pr
e pr ogr
ogram
am
Con/guring............................................ 184
Selecting............................................... 183 Inspection Inspection
see ASS YST PLUS
Ins
Instr trument clust
ument clust er
er
Fu nction/no tes.............................. 280, 281
Ins
Ins tr
trument display
ument display
Fu nction/no tes...................................... 281
Instrument clus ter.................................... 12
Overview of displa ys............................... 285
Wa rning/indicator lamps........................ 479
Ins
Instr trument displa
ument displa y and on-boar
y and on-boar d com-
d com-
put
put er
er
Fu nction/no tes...................................... 280
Int
Int ellig
ellig ent Light Syst
ent Light Syst em
em
Ac tivating/deactivating.......................... 142
Ac tive headlamps................................... 141
Ad aptive Highbeam Assis t...................... 143
Ad aptive Highbeam Assist Plu s............... 144
City lighting............................................ 142
Cornering light....................................... 142
Mo torw ay mode.................................... .142
Overview................................................ 141
Int Int ellig
ellig ent oper
ent oper ating-mode s
ating-mode str trat
at egy
egy
see Route-based operating-mode strategy 512
512
Index

Int
Int
er
erior lighting
ior lighting
Ad justing............................................... 146
Ambient lighting.................................... .146
Re ading lamp......................................... 146
Switch-o. delay time.............................. 147
Int
Int er
erior pr ot
ior pr otection
ection
Fu nction................................................ 104
Priming/deactivating............................. 104
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 system
em
Fi tting...................................................... 70 J
J
Jack
Jack Declaration of conformity......................... 36
Storage location.................................... .383
Jum Jum p-st
p-st ar
art connection
t connection
General no tes....................................... .362 K
K
K
K e
ey
y
Ac oustic locking veri/cation signal.......... .82
Ac tivating/deactivating pre-entry cli-
mate control.......................................... 160
Battery..................................................... 83
Deactivating a function............................ 82
Emer gency key......................................... 83
Energy consum ption................................ 82
Fu nction overview.................................... 81
Ke yring attachment................................. 83
Problem................................................... 84
Unlocking setting..................................... 82
KEYLESS-GO
KEYLESS-GO
Deactivating a function............................ 82
Locking/unlocking theve hicle................. 86
Problem................................................... 87
Unlocking setting.................................... .82
Kic Kic kdo kdo wn
wn
Using..................................................... 190
Knee airbag
Knee airbag.................................................... 52 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..................................................... 300
Setting................................................... 300
Light adjus
Light adjustment tment
Low beam (d riving abroad).................... .138
Light switch
Light switch Overview................................................ 138
Lighting
Lighting see Interior lighting
see Lights
Lights Lights Active headlamps................................... 141
Ad aptive Highbeam Assis t...................... 143
Ad aptive Highbeam Assist Plu s............... 144 Index
513
513

Au
tomatic driving lights......................... .139
Changing bulbs...................................... 147
City lighting............................................ 142
Combination switc h............................... 140
Cornering light....................................... 142
Driving abroad (low beam light adjust-
ment)..................................................... 138
Hazard warning lights............................. 141
Headlamp 0ashing................................. 140
Headlamp range.................................... .139
High beam............................................. 140
Intelligent Light System.......................... 141
Light switch........................................... 138
Low beam.............................................. 138
Mo torw ay mode.................................... .142
Pa rking lights......................................... 138
Re ar fog light......................................... 138
Re sponsibility for lighting systems.......... 138
Setting theex terior lighting switch-o.
delay time.............................................. 145
St anding lights....................................... 138
Switching the Intelligent Light System
on/o....................................................1 42
Switching the sur round lighting on/o.... 146
Tu rn signal indicator............................... 140 Limit
Limit er er
Ac tivating............................................... 233
Buttons.................................................. 233
Calling up a speed................................. 233
Deactivating........................................... 233
Fu nction................................................ 232
Maximum design speed.......................... 182
Pa ssive mode......................................... 232
Pe rm anent setting.................................. 235
Re quirements........................................ 233
Selecting............................................... 233
Setting a speed...................................... 233
St oring a speed.............................. 233, 237
Switching o./deactivating.................... .237
Switching on/activating......................... 237
System limits......................................... 232
Limiting speed Limiting speed see Limiter
Limiting t Limiting t he opening angle (t he opening angle (t ailg
ailgat
ate)
e)............... 94
LIN
LIN GUA
GUA TR
TRONIC
ONIC
Fu nction................................................ 292
St arting................................................ .292 Liv
Liv
e
eTr
Tra1c
a1c Inf
Infor
ormation
mation
Switching the tra1c information dis-
play on................................................... 308
Load com
Load com par
partment
tment
Expanding..............................................1 21
Load com
Load com par
partment cov
tment cov er
er
Re moving//tting.................................... 126
Loading
Loading Adjusting the load compartment 0oor.... 131
Bag hook............................................... 129
Clo thes hook.........................................1 29
No tes..................................................... 118
Ro of luggage rack .................................. 132
Ti e-down eyes........................................ 128
Loading guidelines
Loading guidelines.......................................1 18
Loads
Loads
Fixing..................................................... 118
Loc Loc king/unloc
king/unloc king
king
Ad ditional door loc k................................. 84
Emer gency key......................................... 88
KEYLESS-GO............................................ 86
Opening theta ilgate................................. 89
Switching the automatic locking fea-
ture on/o.............................................. .87514 514
Index