2021 MERCEDES-BENZ B-CLASS HATCHBACK air condition

Dr
Dr
iving and dr
iving and dr iving safe
iving safety sy
ty syst
stems
ems Dr
Dr
iving syst
iving syst ems and y
ems and y our r
our r esponsibility
esponsibility Yo
ur vehicle is equipped with driving systems
which assist you in driving, parking and manoeu-
vring theve hicle. The driving systems are only
aids. They are not a substitute foryo ur attention
to the sur roundings and do not relie ve you of your
re sponsibility per taining toroad tra1c la w.The
driver is alw aysre sponsible for maintaining a safe
distance totheve hicle in front, forve hicle speed,
fo r braking in good time and for st aying in lane.
Pa y attention tothe tra1c conditions at all times
and inter vene when necessar y.Be awa reofthe
limitations rega rding the safe use of these sys-
te ms.
Driving systems can neither reduce therisk of
accident if youfa ilto adapt your driving style nor
ove rride the la wsof ph ysics. They cannot alw ays
ta ke into account road, weather or tra1c condi-
tions. Inf
Inf
or
ormation on v
mation on v ehicle sensor
ehicle sensor s and camer
s and cameras
as Some driving and driving saf
ety sy stems use cam-
eras as well as radar or ultrasonic sensors to
monitor the area in front of, behind or next tothe
ve hicle. 1
Multifunction camera
2 Cameras in the outside mir rors
3 Front radar 4
Front camera
5 Corner radars
6 Ultrasonic sensors
7 Reversing camera &
W
WARNING
ARNING Risk of accident due torestric-
te d de tection per form ance of vehicle sen-
sors and cameras
If th e area around vehicle senso rsor cameras
is co vered, damaged or dirty, cer tain driving
and saf ety sy stems cannot function co rrectl y.
There is a risk of an accident. #
Keep the area around vehicle senso rsor
cameras clear of any obst ructions and
clean. #
Have damage tothe bumper, radiator
gr ille or stone chipping in the area of the
front and rear wind owsre paired at a
qu ali/ed specialist workshop. Pa
rticular ly,ke ep the areas around the sensors
and cameras free of dirt, ice or slush
(/ page 348). The sensors and cameras must Driving and parking
223 223

F
F
unction of ESP
unction of ESP ®
®
tr
trailer st
ailer st abilisation
abilisation &
W
W ARNING
ARNING Risk of accident in poor road
and weather conditions
In poor road and weather conditions, the
trailer stabilisation cannot pr event lur ching of
th eve hicle/trailer combination. Trailers with a
high cent reofgrav ity may tip over before
ESP ®
de tects this. #
Always adapt your driving style tosuit
th e cur rent road and weather conditions. When driving with a trailer, ESP
®
can stabilise
yo ur vehicle if the trailer begins toswer vefrom
side toside:
R ESP ®
trailer stabilisation is active abo ve
speeds of 65 km/h.
R Slight swerving is reduced bymeans of a tar-
ge ted, individual brake application on one
side.
R Intheev ent of se vere swerving, the engine
output is also reduced and all wheels are
braked. ESP
®
trailer stabilisation may be impaired or may
not function if:
R The trailer is not connected cor rectly or is not
de tected proper lyby theve hicle. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating ESP
ating ESP®
®
(Electr
(Electr onicSt
onic Stability
ability
Pr
Pr ogr
ogr am)
am) Multimedia system:
4 © 5
Settings 5
Quick access
% ESP®
can only be activated/deactivated using
qu ick access when at least one other function
is available in quick access. ESP ®
can other-
wise be found in theAssistance menu. #
Select ESP. #
Select Onor00BB Off.
% If ESP ®
is deactivated and drive prog ram
Î was pr eviously selected, drive prog ram
A is automatically activated the next time
th e engine is star ted.
ESP ®
is deactivated if the00BB ESP®
OFF warn-
ing lamp lights up continuously in the inst rument
clus ter. Obser
vethe information on warning lamps and
display message s which may be shown in the
inst rument cluster. F
F
unction of EBD
unction of EBD Electronic Breakforce Distribution (EBD) is
char-
acterised bythefo llowing:
R Monitoring and regulating the brake pressure
on there ar wheels.
R Impr oved driving stability when braking, espe-
cially on bends. F
F
unction of S
unction of S TEER C
TEER CONTR
ONTROL
OL ST
EER CONTROL assists youby transmitting a
noticeable steering forc eto the steering wheel in
th e direction requ ired forve hicle stabilisation.
This steering recommendation is given in thefo l-
lowing situations:
R both right wheels or bo thleT wheels are on a
we t or slippery road sur face when you brake
R theve hicle starts toskid Driving and parking
227
227

now
take cont rol of theve hicle. The vehicle is not
accelerated any fu rther.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 223).
A
A ctiv
ctiv e Dist
e Dist ance Assis
ance Assis t DIS
t DISTR
TRONIC display
ONIC display s in t
s in the
he
Ins
Ins tr
trument Display
ument Display Assis
tance graphic
1 Route-based speed adap tation: type of route
ev ent (/ page 240)
2 Vehicle in front
3 Distance indicator 4
Set speci/ed distance
5 Active Lane Change Assist lane change dis-
play
P
P er
er manent st
manent st atus displa
atus displa y of A
y of Activ
ctive Dist
e Dist ance
ance
Assis
Assis t DIS
t DISTR
TRONIC
ONIC
R k (white): Active Distance Assist
DISTRONIC selected, speci/ed distance set
R k (white vehicle, green speedome ter):
Ac tive Distance Assist DISTRONIC acti ve,
speci/ed dis tance set and vehicle de tected
R k (gre en): Active Distance Assist
DISTRONIC acti ve, speci/ed dis tance set and
ve hicle de tected
R r: Route-based speed adap tation acti ve
( / page 240).
The stored speed is shown along with the perma-
nent status display and highlighted on the speed-
ome ter. When Active Distance Assist DISTRONIC
is passive, the speed is grey ed out.
% On mo torw ays or high-speed major roads, the
gr een ç vehicle symbol is displ ayed cycli-
cally when theve hicle is ready topull away. %
Ifyo u depress the accelerator pedal be yond
th e setting of theAc tive Distance Assist
DISTRONIC, the system is switched topassive
mode. The çsuspended message
appears in the Instrument Displa y.
Displa
Displa y on t
y on the speedomet
he speedomet er
er
The stored speed is highlighted on the speedome-
te r. Ifth e speed of theve hicle in front or the
speed adjustment forth ero ute event ahead is
less than the stored speed, the segments in the
speedome ter light up. The Instrument Display
sho ws th e deactivation of Active Distance Assist
DISTRONIC, as well as alterations tothe speed
due tomanual or automatic adoption of the maxi-
mum permissible speed.
Syst
Syst em limits em limits
The system may be impaired or may not function
in thefo llowing situations, forex ample:
R In sno w,rain, fog, heavy spr ay, if there is glare,
in direct sunlight or in greatly varying light
conditions.
R The windscreen in the area of the camera is
dirty, misted up, damaged or co vered. 236
236
Driving and parking

R
Ifth era dar sensors are dirty or co vered.
R In multi-s tore y car par ksor on roads with
steep uphill or downhill gradients.
R Ifth ere are nar row vehicles in front, such as
bicycles or mo torc yc les.
In addition, on slippery roads, braking or acceler-
ating can cause one or se veral wheels tolose
traction and theve hicle could then skid.
Do not use Active Distance Assist DISTRONIC in
th ese situations. &
W
WARNING
ARNING Risk of accident from accelera-
tion or braking byActive Distance Assist
DISTRONIC
Ac tive Distance Assist DISTRONIC may accel-
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis-
ta nce Assist DISTRONIC.
R Ifth e stored speed is called up and is con-
siderably faster or sl owerthan the cur-
re ntly driven speed. R
IfAc tive Distance Assist DISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Always carefully obser vethe tra1c con-
ditions and be ready tobrake at all
times. #
Take into account the tra1c situation
before calling up the stored speed. &
W
WARNING
ARNING Risk of accident due toinsu1-
cient deceleration byActive Distance
Assist DISTRONIC
Ac tive Distance Assist DISTRONIC brakes your
ve hicle with up to50% of the possible deceler-
ation. If this deceleration is not su1cient,
Ac tive Distance Assist DISTRONIC alerts you
with a visual and acoustic warning. #
Adjust your speed and maintain a suita-
ble distance from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. &
W
WARNING
ARNING Risk of accident if de tection
function of Active Distance Assist
DISTRONIC is impaired
Ac tive Distance Assist DISTRONIC does not
re act or has a limi tedre action:
R when driving on a di.erent lane or when
changing lanes
R topedest rians, animals, bicycles or sta-
tionary vehicles, or unexpected obs tacles
R tocomplex tra1c conditions
R tooncoming vehicles and crossing tra1c
As a result, Active Distance Assist DISTRONIC
may neither give warnings nor inter vene in
such situations. #
Always obser vethe tra1c conditions
carefully and react accordingl y. Oper Oper
ating A
ating A ctiv
ctive Dist
e Dist ance Assis
ance Assis t DIS
t DISTR
TRONIC
ONIC
R
R eq
eq uir
uir ements:
ements:
R The electric parking brake is released.
R ESP ®
is activated and is not inter vening. Driving and parking
237
237

re
sponsible for complying with road tra1c regula-
tions and driving at a suitable speed.
The speed ada ptation made bythe system may
not alw ays be suitable, particular lyin thefo llowing
situations:
R thero ad's course not clear lyvisible
R road nar rowing
R varying maximum permissible speeds in indi-
vidual lanes, forex ample at toll stations
R wetro ad sur faces, snow or ice
R when towing a trailer
In these situations the driver must inter vene
accordingl y. &
W WARNI NG
ARNI NGRisk of accident in spi teof
ro ute-based speed adap tation
Ro ute-based speed adap tation can malfunc-
tion or be temp orarily una vailable in thefo l-
lowing situations:
R Ifth e driver does not follow the calculated
ro ute R
If map data is not up-to-date or available
R Intheev ent of roadwor ks
R In bad weather or road conditions
R Ifth e accelerator pedal is depressed
R Intheeve nt of electronically displa yed
speed limi tations #
Adapt the speed tothe tra1c situation. Se
Se
tting r
tting r out
oute-based speed adapt
e-based speed adapt ation
ation
R
R eq
eq uir
uir ements:
ements:
R Active Distance Assist DISTRONIC is acti va-
te d.
R ECO Assist is active.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Route-based speed adapt. #
Activate or deactivate the function.
When the function is active, theve hicle speed
is adjusted depending on thero ute events
ahead. %
Further information on the route-based speed
adap tation (/ page 240). A
A
ctiv
ctiv eSt
e St eer
eer ing Assist
ing Assist F
F
unction of A
unction of A ctiv
ctiveSt
e St eer
eer ing Assist
ing Assist
Ac tive Steering Assist is only available up to a
speed of 210 km/h. The system helps youto stay
in the centre of the lane bymeans of moderate
steering inter ventions. Depending on the speed
driven, Active Steering Assist uses theve hicles
ahead and lane markings as a refere nce.
% Depending on the countr y,in the lo wer speed
ra nge Active Steering Assist can use the sur-
ro unding tra1c as a refere nce. If necessar y,
Ac tive Steering Assist can then also pr ovide
assistance when driving outside the centre of
th e lane, forex ample, toform are scue lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist switches
to passive mode. The system pr ovides no support
in this case. Driving and parking
241
241

#
End the support byactively steering in
non-critical situations. #
Drive at an appropriate speed if there
are pedestrians close tothe path of your
ve hicle. Syst
Syst
em limits
em limits
Fu ll system per form ance is not yetav ailable for a
few seconds aTer switching on theve hicle or aTer
driving o..
If Ac tive Brake Assist is impaired or inoperative
due toa malfunction, the00C7 warning lamp
appears in the Instrument Displa y.
The system may be impai red or may not function,
particular lyin thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is glare,
in direct sunlight or in greatly varying light
conditions.
R Ifth e sensors are dirty, misted up, damaged or
co vered.
R Ifth e sensors are impaired due tointer fere nce
from other radar sources, e.g. strong radar
re 0ections in multi-s tore y car par ks. R
If a loss of tyre pressure or a defecti vetyre
has been de tected and displa yed.
R In complex tra1c situations where objects
cannot alw ays be clear lyidenti/ed.
R If pedestrians or vehicles mo vequickly in to
th e sensor de tection range.
R If pedestrians are hidden by other objects.
R Ifth e typical outline of a pedestrian cannot be
distinguished from the backg round.
R If a pedestrian is not de tected as such, e.g.
due tospecial clo thing or other objects.
R Ifth e driver's seat belt is not fastened.
R On bends wi tha tight radius.
% The Active Brake Assist sensors adjust auto-
matical lywhile a cer tain distance is being
driven aTer theve hicle has been deli vered.
Ac tive Brake Assist is una vailable or only par-
tially available during thete ach-in process.
A
A ctiv ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctive Br
e Br ak
ake Assist
e Assist
R
R eq
eq uir
uir ements:
ements:
R The vehicle is switched on. Multimedia system:
4 © 5
Settings 5
Assistance
5 Active Brake Assist #
Select the desired setting.
The setting is retained when the drive system
is next star ted.
Deactiv
Deactiv ating A
ating Activ
ctiv e Br
e Br ak
ak e Assist
e Assist
% It is recommended that you alw ays lea ve
Ac tive Brake Assist acti vated. #
Select Off.
The distance warning function, the autono-
mous braking function and Evasive Steering
Assist are deactivated.
When theve hicle is next star ted, the middle
setting is automatically selected.
% IfAc tive Brake Assist is deactivated, the00D4
symbol appears in the status bar of the Instru-
ment Displa y. 248 248
Driving and parking

Speed Limit Assist
Speed Limit Assist
F
F
unction of Speed Limit Assist
unction of Speed Limit Assist
% Speed Limit Assist uses OpenStreetMap da ta,
which is made available under the conditions
of the Open Database License (OBbL). Further
information can be found at: https://
www.osmfoundation.org/wiki/licence.
Speed Limit Assist de tects speed limits with a
multifunction camera and displa ys them in the
inst rument clus ter and optionally in the head-up
displa y.The camera also de tects speed limits with
a re striction indicated byan additional sign (e.g.
when wet). The system de tects stop signs,
th ereby pr eventing the engine from being
switched o. bythe ECO start/s top function.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 223).
W
W ar
ar ning when t
ning when t he maximum per
he maximum per missible speed is
missible speed is
ex
ex ceeded
ceeded
The system can warnyou if you unintentionally
ex ceed the maximum permissible speed. Todo
th is, you can specify in the multimedia system by
how much the maximum permissible speed can be
exceeded before a warning is issued. You can
specify whe ther thewa rning is tobe just a visual
wa rning or an acoustic one as well.
Displa
Displa y in t
y in the Ins
he Instr trument Display
ument Display
% The illustrations show the Instrument Display
in the widescreen cockpit. 1
Perm issible speed
2 Perm issible speed when there is a restriction
3 Additional sign with restriction
If Speed Limit Assist cannot de term ine the cur-
re nt maximum permissible speed (e.g. due to
missing signs), thefo llowing display appears in
th e Instrument Displa y: This is displa
yed continuously if theve hicle is in a
country where Speed Limit Assist is not suppor-
te d. Speed Limit Assist is not available in all coun-
tries.
Syst Syst em limits
em limits
The system may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth e windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
up, damaged or co vered.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered. Driving and parking
249 249

Displa
Displa
y in t
y in the Ins
he Instr trument Display
ument Display Instrument Display in
theWi descreen Cockpit
1 Maximum permissible speed
2 Maximum permissible speed when there is a
re striction
3 Additional sign with restriction
% V
Vehicles wit
ehicles wit h a st
h a standar
andar d Ins
d Instrtrument Display
ument Display: :a
+
+ symbol next toa tra1c sign in the Instru-
ment Display indicates that additional tra1c
signs ha vebeen de tected. These can also be
displa yed in the media display and optionally
in the head-up displa y. If
Tra1c Sign Assist cann otdeterm ine the maxi-
mum permissible speed (e.g. due tomissing
signs), thefo llowing display appears in the Instru-
ment Displa y: This is displa
yed continuously if theve hicle is in a
country where Tra1c Sign Assist is not suppor ted.
Tr a1c Sign Assist is not available in all countries.
% Also obser vethe information on display mes-
sages in Tra1c Sign Assist (/ page 412).
W
W ar
ar ning when appr
ning when appr oac
oaching pedes
hing pedes tr
trian cr
ian cr ossings
ossings
(v
(v ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age)
e)
The system can warnyou if you approach a
pedestrian crossing with your vehicle. The ¯
Watch for pedestrians message appears inthe
inst rument cluster.
The warning occurs only if appropriate tra1c
signs or lane markings are de tected and pedes-
trians are present in the danger zone. Syst
Syst
em limits
em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth e windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
up, damaged or co vered.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered.
R Ifth e information in the navigation system's
digital map is incor rect or out-of-date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes.
R Ifyo u turn sharply when passing tra1c signs
outside the camera's /eld of vision. Driving and parking
251 251