change time MERCEDES-BENZ B-CLASS HATCHBACK 2021 User Guide

de
tected bythe system. The maximum permissi-
ble speed applying toave hicle with a trailer is not
de tected bythe system.
Ad just the speed in these situations. &
W
WARNING
ARNING Risk of accident due toActive
Speed Limit Assist ada pting theve hicle's
speed
The speed adop tedby Active Speed Limit
Assist may be too high or incor rect in some
individual cases, such as:
R at speed limits below 20 km/h
R inwe t conditions or in fog
R when towing a trailer #
Ensure that the driven speed complies
with tra1c regulations. #
Adjust the driving speed tosuit cur rent
tra1c and weather conditions. F F
unction of r
unction of r out
oute-based speed adapt
e-based speed adapt ation
ation
When Active Distance Assist DISTRONIC is acti va-
te d, theve hicle speed will be adap ted accordingly
to thero ute events ahead. Depending on the drive prog
ram selected, theve hicle neg otiates a route
ev ent ahead in an economical, comfor table or
dynamic manner. When thero ute event has been
passed, theve hicle accelerates again tothe
stored speed. The set distance totheve hicle in
front, vehicles de tected ahead and speed restric-
tions ahead are take n into account.
Yo u can activate and deactivate route-based
speed adap tation in the multimedia system
(/ page 241).
The following route events are take n into account:
R Bends
R T-junctions, roundabouts and toll stations
R Turns and exits
R Tra1c jams ahead (only with Live Tra1c Infor-
mation )
% When theto ll station is reached, Active Dis-
ta nce Assist DISTRONIC ado ptsth e speed as
th e stored speed.
Also, the speed is reduced if the turn signal indi-
cator tochange lanes is switched on and one of
th efo llowing situations is de tected:
R Turning o. at junctions R
Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts and
tra1c lights, as route-based speed adap tation
does not brake theve hicle toa standstill.
When route guidance is active, the /rst speed
adjustment is car ried out automaticall y.Ifth e turn
signal indicator is switched on, the selected route
is con/rmed and fur ther speed adjustment is acti-
va ted.
Speed adap tation is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched o.
before thero ute event.
R Ifth e driver depresses the accelerator or
brake pedal during the process.
Syst Syst em limits
em limits
Ro ute-based speed adap tation does not take right
of wa yre gulations into account. The driver is 240
240
Driving and parking

R
The windsc reen is dirty, misted up, damaged
or co vered in the vicinity of the camera, e.g.
by a stic ker.
R No, or se veral, unclear lane markings are pres-
ent for one lane, or the markings change
qu ickl y,forex ample, in a construction area or
junctions.
R The lane markings are wornawa y,dark or co v-
ered up, e.g. bydirt or sno w.
R Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R The road is na rrow and winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
The system does not pr ovide assistance in thefo l-
lowing conditions:
R On tight bends and when turning.
R When crossing junctions.
R Atroundabouts or toll stations.
R When towing a trailer.
R When the tyre pressure is too lo w. &
W
WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly stops functioning
If th e system limits of Active Steering Assist
are reached there is no guarantee that the
system will remain active or will keep theve hi-
cle in lane. #
Alwayske ep your hands on the steering
wheel and obser vethe tra1c carefull y. #
Always steer theve hicle paying attention
to tra1c conditions. &
W
WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected steer-
ing inter ventions. #
Steer according totra1c conditions. A A
ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctiveSt
e St eer
eer ing Assist
ing Assist
R
R eq
eq uir
uir ements:
ements:
R ESP ®
is activated, but is not inter vening. R
Active Distance Assist DISTRONIC is acti va-
te d.
Multimedia system: 4 © 5
Settings 5
Quick access #
Select 004FAct. Steer. Asst . F
F
unction of A
unction of A ctiv
ctive Emerg
e Emerg encySt
ency Stop Assist
op Assist If
th e system de tects that the driver has not
steered theve hicle for a considerable period of
time or has remo vedth eir hands from the steering
wheel, display 1appears in the Instrument Dis-
pla y.Ifth e driver still does not steer theve hicle,
or gives no con/rmation tothe system, a warning Driving and parking
243
243

R
When driving with a trailer, the electrical con-
nection tothe trailer has been cor rectly es tab-
lished.
R If a loss of tyre pressure or a defective tyre is
de tected and displa yed.
If yo u deactivate theAc tive Lane Keeping Assist
wa rning and the lane markings cannot be clear ly
de tected, it is possible that no lane-cor recting
brake application take s place (/ page 257).
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, the
sun 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 ere are no lane markings, or se veral
unclear lane markings are present for one
lane, e.g. around roadwor ks. R
Ifth e lane markings are worn, dark or co v-
ered.
R Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R Ifth e lane markings change quickl y,e.g. lanes
branch o., cross one ano ther or mer ge.
R Ifth e car riag ewa y isvery nar row and winding.
R V
V ehicles wit ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e: if
th era dar sensors in there ar bumper are dirty
or co vered in snow and an obstacle is de tec-
te d in your lane, no lane-cor recting brake
application take s place.
A
A ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctive Lane K
e Lane K eeping
eeping
Assist
Assist
Multimedia system:
4 © 5
Settings 5
Quick access
5 Active Lane Keeping Assist #
Activate or deactivate the function. Se Se
tting A
tting A ctiv
ctive Lane K
e Lane K eeping Assist
eeping Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Active Lane Keeping Assist
Se
Se tting t
tting t he sensitivity
he sensitivity
% The availability of this function is dependent
on the countr y. #
Select Standard, SensitiveorOff.
A
A ctiv
ctiv ating or deactiv
ating or deactiv ating t
ating the hap
he hap tic w
tic war
arning
ning #
Select Warning .
Ac tivate or deactivate the function. F
F
unction of adap
unction of adap tiv
tive dam
e dam ping adjus
ping adjustment tment Suspension with adaptive damping adjustment
continuously adjusts thech aracteristics of the
suspension dampers tothe cur rent ope rating and
driving conditions.
The damping is set individually for each wheel and
is a.ected bythefo llowing factors:
R thero ad sur face conditions
R vehicle load Driving and parking
257 257

5
ß Press brie0 y:calls up favo urites
Press and hold: adds a favo urite or theme #
Alternativel y,tap© ontheto uchscreen. #
Call up the application (/ page 289).F
F
unctions of LIN
unctions of LIN GUA
GUATR
TRONIC
ONIC &
W
WARNING
ARNING Risk of distraction from infor-
mation systems and communications
equipment
If yo u operate information systems and com-
munication devices integ rated in theve hicle
when driving, you could be distracted from the
tra1c situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and tra1c conditions and operate the
equipment with theve hicle stationar y. Fo
ryo ur ow n sa fety, alw ays obser vethefo llowing
points when operating mobile communications
equipment and especially your voice control sys-
te m:
R Obser vethe legal requ irements forth e coun-
try in which you are driving.
R Ifyo u use thevo ice control system in an emer-
ge ncy your voice can change and your tele-
phone call, e.g. an emer gency call, can
th ereby be unnecessarily dela yed.
R Familiarise yourself with thevo ice control sys-
te m functions before starting the journe y.
Wi th LINGU ATRO NIC, various applications in the
MBUX multimedia system are ope rable using
vo ice input. LINGU ATRO NIC is operational appr ox-
imately thirty seconds aTer the ignition is
switched on and is available forth e driver's seat
and front passenger seat.
The following multimedia system applications can
be operated:
R Telephone
R Text message and e-mail
R Navigation R
Address book
R Radio
R Media
R Vehicle functions S S
t
tar
ar ting LIN
ting LIN GUA
GUATR
TRONIC
ONIC #
Press rock er switch 1up. 292
292
MBUX multimedia system

or
#
Select Start new route guidance.
The destination address is set as the new des-
tination. The pr evious destination and the
intermediate destinations are dele ted. Ro ute
guidance tothe new destination begins.
Selecting r
Selecting r out
oute se
e se ttings
ttings #
Select Z. #
Select Advanced. #
Select Route. #
Select thero ute type. #
Take tra1c in form ation into consideration with
Dynamic route guidance 0048.#
Select route options with Avoid options. #
Activate Suggest alternative route.
Alternative routes are calculate dfo rev ery
ro ute. #
Activate Activate commuter route.
If th ere qu irements are met, the multimedia
system automatically de tects that theve hicle
is on a commuter route. Route guidance
begins without voice output. A A
ctiv ctiv ating r
ating r out
oute guidance wit
e guidance wit h augment
h augmented r
ed reality
eality #
During route guidance, tap on the camera
symbol on the media displa y.
The camera ima gewill be shown ins tead of
th e navigation map before a turning manoeu-
vre and will show additional information. #
T
To re
o re tur
tur n t
n to t
o t he na
he na vig
vigation map:
ation map: tap on the
camera symbol again.
Displa
Displa ying additional inf
ying additional inf or
ormation in t
mation in t he camera
he camera
image
image #
Select Z. #
Select Advanced. #
Select Augmented Reality. #
Activate Street names andHouse numbers.
During route guidance, street names and
house numbers are shown in the camera
image. Using map functions
Using map functions
Multimedia system:
4 © 5
Navigation
Se
Se tting t
tting t he map scale
he map scale #
T
To zoom in:
o zoom in: tap twice quickly with one /n ger
on the media displa y. #
T
To zoom out
o zoom out: :ta p with two /ngers on the
media displa y.
Mo
Mo ving t
ving t he map
he map #
Moveone /nger in any direction on the
to uchscreen. #
T
To r
o r ese
ese t t
t the map t
he map t o t
o the curr
he curr ent v
ent vehicle posi-
ehicle posi-
tion:
tion: press \brie0y.
Selecting map or
Selecting map or ient
ientation
ation #
Tapre peatedly on theÄ compass symbol
on the map.
The view changes in the sequence 3D,2D
heading up to2D north up .
Switc
Switc hing mot
hing mot orwa
or wa y inf
y inf or
ormation
mation on/o.
on/o. #
Select Z. MBUX multimedia sy
stem
307
307

ular
the data pr otection regulations, in your
countr y.
Fo rth is reason, before using the dashcam
inform yourself about there gulation de tails for
th ere specti vecount ry.
This function is not permitted in all countries. #
Obser vethe count ry-speci/c regula-
tions. Selecting a USB de
Selecting a USB de
vice f
vice for a video r
or a video r ecor
ecording with
ding with
t
t he dashcam
he dashcam R
R
eq
eq uir
uir ements:
ements:
R Atleast one USB device is connected with the
multimedia system .
Multimedia system: 4 © 5
Mercedes me & Apps
5 Dashcam #
Select the USB device.
% When USB devices contain multiple partitions,
re corded video /les are not alw ays displa yed
in there cording list. Mercedes-Benz
recommends that you use
USB devices with one partition. S
S
t
tar
ar ting or st
ting or st opping video r
opping video r ecor
ecording wit
ding wit h t
h the
he
dashcam
dashcam R
R
eq
eq uir
uir ements:
ements:
R A USB device is connected with the multime-
dia system .
R The vehicle is switched on.
Multimedia system: 4 © 5
Mercedes me & Apps
5 Dashcam #
If se veral USB devices are connected with the
multimedia system, select a USB device
(/ page 310). #
Select theIndividual recording orLoop
recording recording mode.
If Individual recording is selected andthe
memory is full there cording stops.
If Loop recording has been selected, se veral
short video /les are recorded. When the mem-
ory limit is reached, the oldest video /le is dele
ted and recording is continued automati-
call y. #
T
To st
o st art
art::select Start recording.
The length of there cording is shown. The
Please do not remove the storage medium.
message appears. The video /le is stored on
th e USB device. #
T To end:
o end: selectEnd recording .
A report may appear in thefo llowing cases:
R Forth eIndividual recording recording mode:
th e memory is full or there are only a few
minutes recording time available. The video
re cording stops or will be stopped imminent ly.
Change the USB device or dele tea video /le.
R If a video recording has star ted and a national
border is de tected, theNational border
crossed. Please observe the countryspecific
regulations regarding video recording. mes-
sage appears.
This function is not available in all countries.
R The camera is not functional, theCamera
unavailable message appears. 310 310
MBUX multimedia system

Ha
ve the camera checked in a Mercedes-Benz
service centre. T
T
elephone
elephone T
T
elephony
elephony N
No
ot
tes on t
es on t elephony
elephony &
W
WARNING
ARNING Risk of dist raction from operat-
ing integ rated communication equipment
while theve hicle is in motion
If yo u operate communication equipment inte-
gr ated in theve hicle when driving, you could
be distracted from the tra1c situation. This
could also cause youto lose control of the
ve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and tra1c conditions and operate the
equipment with theve hicle stationar y. &
W
WARNI NG
ARNI NGRisk of an accident from oper-
ating mobile communication equipment
while theve hicle is in motion
Mobile communications devices distract the
driver from the tra1c situation. This could also
cause the driver tolose control of theve hicle. #
Asthe driver, only operate mobile com-
munications devices when theve hicle is
stationar y. #
As a vehicle occupant, only use mobile
communications devices in the areas
intended forth is purpose, e.g. in there ar
passen ger compartment. Yo
u must obser vethe legal requ irements forthe
count ryin which you are cur rently driving when
ope rating mobile communication equipment in
th eve hicle. &
W WARNING
ARNING Risk of injury due toobjects
being st owed incor rectly
If objects in theve hicle interior are st owed
incor rectl y,they can slide or be thro wn around and hit
vehicle occupants. In addition, cup
holders, open st owage spaces and mobile
phone recep tacles cann otalw aysreta in all
objects within.
There is a risk of injur y,particular lyin the
eve nt of sudden braking or a sudden change
in direction. #
Always st owobjects so that they cann ot
be thro wn around in such situations. #
Always make sure that objects do not
pr otru de from st owage spaces, lug gage
nets or st owage nets. #
Close the loc kable st owage spaces
before starting a jou rney. #
Always st owand secure heavy, hard,
poin ted, sharp-edged, fragile or bulky
objects in the boot/load compartment. Obser
vethe additional information on st owing
mobile communications devices cor rectl y:
R Loading theve hicle (/ page 118)
R Stow ing and securing the mobile phone
(/ page 135) MBUX multimedia system
311 311

R
Two mobile phones are connected with the
multimedia system via Blue tooth ®
(two phone
mode).
- You can use all the functions of the multi-
media system with the mobile phone in the
fo re ground.
- You can receive incoming calls and mes-
sages with the mobile phone in the bac k-
gr ound.
Yo u can inter change the mobile phone in
th efo re ground and backg round.
Connecting a mobile phone
Connecting a mobile phone
R R eq
eq uir
uir ements:
ements:
R Blue tooth ®
is activated on the mobile phone
(see the manufacturer's operating inst ruc-
tions).
R Bluetoo th®
is activated on the multimedia sys-
te m. Multimedia system:
4 © 5
Phone
Searc
Searc hing f
hing for a mobile phone
or a mobile phone #
Select í. #
Select Connect new device.
Connecting a mobile phone
Connecting a mobile phone
Au thorisation follo ws using secure simple pairing. #
Select a mobile phone.
A code is displa yed in the multimedia system
and on the mobile phone. #
If bo thcodes match, con/rm the code on the
mobile phone.
F F unctions in t
unctions in t he t
he telephon
elephon y menu
y menu
In thete lephony menu you ha vethefo llowing
functions, forex ample:
R Making calls, e.g.:
- R Accept a call
- k End call
- i Create conferen. call
- Accepting or rejecting a waiting call R
Managing contacts, e.g.:
- Downloading mobile phone contacts
- Managing thefo rm at of a contact's name
- Saving a contact as a favo urite
R Receiving and sending messages, e.g.:
- Using there ad-aloud function
- Dictating a new message Mer
Mer
cedes me app
cedes me app Mer
Mer
cedes me calls
cedes me calls Making a call via t
Making a call via t
heov
he overerhead contr
head contr ol panel
ol panel
% Mercedes me calls are not possible in every
countr y.Find out at a Mercedes-Benz service
centre if these functions are available in your
countr y. 314
314
MBUX multimedia system

Flat tyre
Flat tyre
N
No
ot
tes on
es on 0at
0attyr
tyres
es &
W
WARNING
ARNING Risk of accident due toa 0at
tyre
A 0at tyre se verely a.ects the driving charac-
te ristics as well as the steering and braking of
th eve hicle.
T
T yr
yr es wit
es wit hout
houtr
run-0at
un-0at c
char
har act
acter
eristics:
istics: #
Do not drive with a 0at tyre. #
Change the 0at tyre immediately with an
emer gency spa rewheel or spare wheel.
Alternativel y,consult a quali/ed special-
ist workshop.
T
T yr
yr es wit
es wit h
hr
run-0at
un-0at c
char
har act
acter
eris
istics:
tics: #
Obser vethe information and warning
no tes on MOExtended tyres (run-0at
tyres). In
theev ent of a 0at tyre, thefo llowing options are
av ailable depending on your vehicle's equipment:
R V
Vehicles wit
ehicles with MOExt h MOExtended tyr
ended tyr es:
es:it is possible
to continue the journey for a short period of
time. Make sure you obser vethe no tes on
MOExtended tyres (run-0at tyres)
(/ page 354).
R V Vehicles wit
ehicles wit h a TIREFIT kit:
h a TIREFIT kit: you can repair the
tyre so that it is possible tocontinue the jour-
ney for a short period of time. Todo this, use
th e TIREFIT kit (/ page 356).
R V
V ehicles wit
ehicles wit h Mer
h Mercedes me connect:
cedes me connect: you can
make a call for breakdown assistance via the
ove rhead control panel in the case of a break-
down (/ page 314).
R All v
All v ehicles:
ehicles: change the wheel (/ page 383). N
No
ot
tes on MOExt
es on MOExt ended tyr
ended tyres
es(r
(run-0at
un-0at tyr
tyres)
es) &
W
WARNING
ARNING Risk of accident when driving in
limp-home mode
Driving in emer gency mode impai rsthe han-
dling characteristics of theve hicle. #
Do not exceed the permissible maximum
speed of the MOExtended tyres. #
Avoid any abrupt steering and driving
manoeuvres as well as driving over
obstacles (kerbs, pot holes, o.-road).
This applies, in particular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vib ration
R smo kewhich smells like rubber
R continuous ESP ®
inter vention
R crac ksinthe tyre side walls #
ATer driving in emer gency mode, ha ve
th erims checkedby a quali/ed specialist
wo rkshop with rega rd totheir fur ther
use. #
The defective tyre must be replaced in
ev ery case. 354 354
Breakdown assistance

R
The vehicle is on solid, non-slippery and le vel
gr ound.
R The requ ired tyre-change tool kit is available.
% Ifyo ur vehicle is not equipped with the tyre-
ch ange tool kit, consult a quali/ed specialist
wo rkshop to/nd out about sui table tools. #
Apply the electric parking brake manuall y.#
Movethe front wheels tothe straight-ahead
position. #
V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: engage
/rst or reve rsege ar. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: shiTto
position 005D. #
Switch o. theve hicle. #
Make sure that theve hicle cann otbe star ted. #
Place choc ks orother suitable items under the
front and rear of the wheel that is diagonal ly
opposite the wheel you wish tochange. #
If necessar y,remo vethe wheel trim/hub caps
(/ page 384). #
Raise theve hicle (/ page 384). R
R
emo
emo ving and
ving and /tting
/ttingt
the wheel tr
he wheel tr im/hub caps
im/hub caps R
R
eq
eq uir
uir ements:
ements:
R The vehicle is prepared for a wheel change
(/ page 383).
Wheel tr
Wheel tr im
im
The wheel trim co vers the wheel bolts on vehicles
with steel wheels. Before unscr ewing the wheel
bolts, remo vethe wheel trim. #
T
T o r
o r emov
emov e:
e: using bo thhands, carefully reach
into two wheel trim openings and remo vethe
wheel trim. Plas Plas
tic hub cap tic hub cap #
T
To r
o r emov
emov e:
e:turn the centre co ver of the hub
cap anti-clockwise and remo vethe hub cap. #
T
To
o /t:
/t: make sure that the centre co ver of the
hub cap is turned anti-clockwise. #
Position the hub cap and turn the centre co ver
clockwise until the hub cap engages ph ysically
and audibl y. R
R
aising t
aising t he v
he vehicle when c
ehicle when c hanging a wheel
hanging a wheel R R
eq eq uir
uir ements:
ements:
R There are no persons in theve hicle.
R The vehicle has been prepared for a wheel
ch ange (/ page 383).
R The wheel trims and hub caps ha vebeen
re mo ved (/ page 384).
Impor tant no tes on using the jack:
R Use only a vehicle-speci/c jack that has been
appr ovedby Mercedes-Benz toraise theve hi-
cle.
R The jack is only designed forra ising and hold-
ing theve hicle for a short time while a wheel 384
384
Wheels and tyres