2021 MERCEDES-BENZ B-CLASS HATCHBACK warning lights

1
0025 ABS →
491
2 003E003D Turn signal lights →
140
3 0077 Tyre pressure monitoring system →
493
4 003D Electrical fault →
484
5 L Distance warning →
490
6 004D Brakes (yellow) →
488
7 004D Brakes (red) →
488
8 0024 Electric parking brake (yellow) →
488
9 0024 Electric parking brake (red) →
488
A 00B9 Engine diagnostics →
484
B 0028 Diesel engine: preglow
C 005A Indicator lamp inoperative
D 005E Rear fog light →
139 E
0057 High beam →
140
0058 Low beam →
138
0060 Standing lights →
138
F 00BB ESP®
OFF →
491
00E5 ESP®
→
491
G 0075 Restraint system →
480
H Fuel le vel →
281
I 00D4 Reser vefuel wi thfuel /ller 0ap location
indicator →
484
J Ù Powe r steering →
483
K 00E9 Seat belt →
480
L ï Trailer hitch →
483 At
a glance – Indicator and warning lamps (standard)
13
13

1
003E003D Turn signal lights →
140
2 ï Trailer hitch →
483
3 0075 Restraint system →
480
4 00BB ESP®
OFF →
491
00E5 ESP®
→
491
5 005E Rear fog light →
139
6 0057 High beam →
140
0058 Low beam →
138
0060 Standing lights →
138
7 005A Indicator lamp inoperative
8 ÿ Coolant temp erature →
484
9 Coolant temp erature display →
281
A 0024 Electric parking brake (yellow) →
488
B 004D Brakes (yellow) →
488 C
003D Electrical fault →
484
D L Distance warning →
490
E 0025 ABS →
491
F Ù Powe r steering →
483
G 0077 Tyre pressure monitoring system →
493
H 0028 Diesel engine: preglow
I 00D4 Reser vefuel wi thfuel /ller 0ap location
indicator →
484
J Fuel le vel →
281
K 0024 Electric parking brake (red) →
488
L 00E9 Seat belt →
480
M 004D Brakes (red) →
488
N 00B9 Engine diagnostics →
484
O ä Indicator lamp inoperative At
a glance – Indicator and warning lamps (widescreen cockpit)
15
15

R
R
es
estr traint syst
aint syst em functionality
em functionality When
theve hicle is switched on, a self-test is per-
fo rm ed, during which the0075 restraint system
wa rning lamp lights up. It goes out no later than a
few seconds aTer theve hicle is star ted. The com-
ponents of there straint system are then func-
tional. Malfunctioning r
Malfunctioning r
es
estr traint syst
aint syst em
em A malfunction has occur
red in there straint sys-
te m if:
R the0075 restraint system warning lamp does
not light up when theve hicle is switched on
R the0075 restraint system warning lamp lights
up continuously or repeatedly during a journey
All v
All v ehicles, ex
ehicles, excep
cep t plug-in h
t plug-in h ybr
ybrid:
id: &
W
WARNING
ARNING Risk of injury due tomalfunc-
tions in there straint system
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as
intended in an accident. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. Plug-in h
Plug-in h
ybr
ybrid:
id: &
D
DAN
AN GER
GER Risk of fatal injuries due to
re straint system malfunctions
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as plan-
ned in an accident. In theeve nt of an acci-
dent, the high-voltage on-board electrical sys-
te m may not be deactivated as intended.
Yo u may su.er an electric shock if youto uch
th e damaged components of the high-voltage
on-board electrical system. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. #
ATer an accident, switch o. theve hicle
immediatel y. F
F
unction of t
unction of t he r
he res
estrtraint syst
aint syst em in an accident
em in an accident How
there straint system works depends on the
se verity of the impact de tected and the apparent
type of accident:
R Frontal impact
R Rear impact
R Side impact
R Only for cer tain countries: rollo ver
The activation thre sholds forth e components of
th ere straint system are de term ined based on the
ev aluation of the sensor values measured at vari-
ous points in theve hicle. This process is pre-e mp-
tive in nature. The triggering/deployment of the
components of there straint system must take
place in good time at the start of the collision.
Fa ctors which can only be seen and measured
aTer a collision has occur red cannot play a deci-
sive role in airbag deployment. Nor do they pro-
vide an indication of airbag deployment.
The vehicle may be deformed signi/cantly without
an airbag being deplo yed. This is the case if only
parts which are relatively easily deformed are
a.ec tedand thera te of vehicle deceleration is Occupant saf
ety
47 47

*
N
NO
OTE
TE Damage caused byobjects in the
fo ot we ll or behind the seat The automatic adjustment of
the seat position
may result in damage tothe seat and/or the
object. #
Stow objects in a suitable place. R
R
e
ev
ver
er sing t
sing t he PRE-S
he PRE-S AFE
AFE®
®
syst
syst em measur
em measur es
es If an accident did not occur,
the pre-em ptive
measures that we re ta ken are reve rsed.
Yo u will need toper form certain settings yourself. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. F
F
unction of PRE-S
unction of PRE-S AFE
AFE ®
®
PL
PL US (anticipat
US (anticipat or
ory occu-
y occu-
pant pr ot
pant pr otection plus)
ection plus) PRE-SAFE
®
PLUS can de tect cer tain impacts, par-
ticular lyan imminent rear impact, and take pre-
em ptive measures toprotect theve hicle occu- pants. These measures cann
otnecessarily pre-
ve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher 0ashing frequency.
R Increasing brake pressure when theve hicle is
stationar y.This brake application is cancelled
automatically when theve hicle pulls away.
If an accident did not occur, the pre-em ptive
measures that we re ta ken are reve rsed.
Syst
Syst em limits
em limits
The system will not initiate any action in thefo l-
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact The system will not initiate any braking application
in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space while
using Active Parking Assist A A
ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident
Depending on the type and se verity of the acci-
dent, and depending on theve hicle's equipment,
th efo llowing measures can be implemented, for
ex ample:
R automatic braking (post-collision brake)
R activating the hazard warning lights
R triggering an automatic emer gency call
(/ page 325)
R switching o. the engine
To start theve hicle again, switch theve hicle
o. and on once more (/ page 169). Depend-
ing on the type and se verity of the accident,
yo u may no longer be able tostart theve hicle.
R switching o. the fuel supply 60
60
Occupant saf
ety

If
th e battery is insu1cient lych arge d, the stand-
ing lights or parking lights will be switched o.
automatically tofacilitate the next engine start.
The exterior lighting (e xcept standing and parking
lights) will switch o. automatically when the driv-
er's door is opened.
R Obser vethe no tes on sur round lighting
(/ page 146).
A
A ut
ut omatic dr
omatic dr iving lights function
iving lights function
When theve hicle is switched on, the standing
lights, low beam and daytime running lights are
switched on automatically depending on the light
conditions. &
W
WARNING
ARNING Risk of accident when the
dipped beam is switched o. in poor visi-
bility
When the light switch is set to0058 ,the
dipped beam may not be switched on auto-
matically if there is fog, snow or other causes
of poor visibility such as spr ay.#
In such cases, turn the light switch to
0058 . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting.
Switc Switc hing t
hing t he r
he rear f
ear f og lights on or
og lights on or o.
o.
R
R eq
eq uir
uir ements:
ements:
R The light switch is in the0058 or0058 posi-
tion. #
Press the 005E button.
Please obser vethe count ry-speci/c la wsonthe
use of rear fog lamps.
R
R egulating headlam
egulating headlam p r
p rang
ang e (halog
e (halog en headlam
en headlam ps)
ps)
The headla mprange adjuster all owsyo uto adjust
th e cone of light from the headlamps in relation to
th eve hicle's load condition. 005A
Driver's seat and front passen ger seat occu-
pied
0047 Driver's seat, front passenger seat and rear
seats occupied
0048 Driver's seat, front passen ger seat and rear
seats occupied, load compartment laden
0049 Driver's seat and front passen ger seat occu-
pied and maximum permissible rear axle load
utilised Light and sight
139
139

A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the hazar
he hazar d w
d war
arning lights
ning lights #
Press button 1.
The hazard warning lights will switch on automati-
cally if:
R the airbag has been deplo yed.
R theve hicle is heavily braked from a speed of
more than 70 km/h toa standstill. When
you pull away again, the hazard warning
light system will switch o. automatically at
appr oximately 10 km/h. You can also switch o.
th e hazard warning light system using button 1. A A
dap
dap tiv
tive functions, MUL
e functions, MUL TIBEAM LED
TIBEAM LED Int Int
ellig ellig ent Light Syst
ent Light Syst em function
em function
The MULTIBEAM LED headlamp s adapttothe
driving and weather situation and pr ovide exten-
ded functions for impr oved illumination of the
ro ad.
The system comprises thefo llowing functions:
R Active headlamps (/ page 141)
R Cornering light (/ page 142)
R Motorw ay mode (/ page 142)
R City lighting (/ page 142)
Syst
Syst em limits
em limits
R The system is active only when it is dar k.A
A
ctiv
ctiv e headlam
e headlamps function ps function R
The headlamps follow the steering mo ve-
ments.
R Releva nt areas are better illumina ted during a
journe y.
The functions are active when the high beam is
switched on. Light and sight
141
141

The high beam will switch o. automatically in
the
fo llowing cases:
R Atspeeds below 25 km/h
R Ifot her road users are de tected
R If st reet lighting is su1cient
% The system's optical sensor is located behind
th e windscreen near theove rhead control
panel.
Switc
Switc hing A
hing A dap
daptiv
tive Highbeam Assis
e Highbeam Assist ton/o.
on/o.
Switc
Switc hing on
hing on #
Turn the light switch tothe0058 position. #
Switch on the high beam using the combina-
tion switch.
If Ad aptive Highbeam Assist is activated,
th e00CE indicator lamp will light up on the
cent ral display section of the inst rument dis-
pla y.
Switc Switc hing
hingo.
o. #
Switch o. the high beam using the combina-
tion switch. A
A
dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus t Plus A
A
dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus function t Plus function &
W
WARNING
ARNING Risk of accident despite Adap-
tive Highbeam Assist Plus
Ad aptive Highbeam Assist Plus does not react
to:
R road users without lights, e.g. pedestrians
R road users with poor lighting, e.g. cyclists
R road users whose lighting is obstructed,
e.g. bya bar rier
On very rare occasions, Adaptive Highbeam
Assist Plus may failto recognise other road
users with their own lighting, or may recognise
th em too late.
In these, or in similar situations, the automatic
high beam will not be deactivated or will be
activated despite the presence of other road
users. #
Always obser vethero ad and tra1c con-
ditions carefully and switch o. the high
beam in good time. Ad
aptive Highbeam Assist Plus cann ottake into
account road, weather or tra1c conditions.
De tection may be restric ted in thefo llowing
cases:
R in poor visibility, e.g. fog, heavy rain or snow
R ifth ere is dirt on the sensors or the sensors
are obscured
Ad aptive Highbeam Assist Plus is only an aid. Yo u
are responsible for adjusting theve hicle's lighting
to the pr evailing light, visibility and tra1c condi-
tions. 144 144
Light and sight

A
A
djus
djus ting t
ting t he br
he br ightness
ightness #
Select Brightness. #
Adjust the brightness.
A
A ctiv
ctiv ating t
ating t he br
he brightness f
ightness f or zones
or zones #
Select Brightness. #
Select Brightness zones. #
Switch the function on or o..
or #
Set the brightness forth e desired zones.
A
A ctiv
ctiv ating multi-colour
ating multi-colour ed lighting
ed lighting #
Select Colour. #
Select Multi-colour. #
Select a colour combination.
A
A ctiv
ctiv ating multi-colour
ating multi-colour ed animation
ed animation #
Select Colour. #
Select Multi-colour animat..
The chosen colour combination will change at
prede/ned inter vals. A
A ctiv
ctiv ating w
ating w elcome lighting
elcome lighting #
Select Colour. #
Select Welcome.
When theve hicle is unloc ked, a special ambi-
ent lighting sequence will run.
A
A ctiv
ctiv ating dependency on air conditioning se
ating dependency on air conditioning se t-
t-
tings
tings #
Select Colour. #
Select Climate .
If ch anges are made tothete mp erature set-
ting in theve hicle, the colour of the ambient
lighting will change brie0y. Switc
Switc
hing t
hing t he int
he inter
erior lighting
ior lighting switc
switch-o.
h-o. delay
delay
time
time on/o.
on/o. Multimedia system:
4 © 5
Settings 5
Lights
5 Int. light. del. sw. off #
Switch the swit ch-o. delay time on or o..
When this function is active, the interior light-
ing lights up for a short time aTer theve hicle
is loc ked. Changing bulbs (onl
Changing bulbs (onl
y f
y for v
or v ehicles wit
ehicles wit h halog
h halogen
en
headlam
headlam ps)
ps) N
No
ot
tes on c
es on c hanging bulbs
hanging bulbs &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts whilst replacing a bulb
Bulbs, lamps and plugs can become very hot
during operation.
When replacing a bulb, you could burn your-
self on these component parts. #
Allow the component parts tocool down
before replacing the bulb. R
Do not use a bulb if it has been dropped or if
its glass has been scratched. The bulb may
otherwise explode.
R Do not touch the glass bulb with your bare
hands.
R Protect bulbs from moisture and do not allow
bulbs tocome into contact with liquids. Light and sight
147 147