change time MERCEDES-BENZ B-CLASS HATCHBACK 2021 Owners Manual

Thank y
Thank y
ou f
ou for buying Mer
or buying Mer cedes-Benz
cedes-Benz
Before you /r stdrive o., read this operator's
manual carefully and familiarise yourself with your
ve hicle. Foryo ur ow n sa fety and a longer operat-
ing lifespan of theve hicle, follow the inst ructions
and warning notices in this operator's manual.
Disregarding them may lead todamage tothe
ve hicle or injury topeople.
The standard equipment and product description
of your vehicle may vary and depends on thefo l-
lowing factors:
R Model
R Order
R National version
R Availability
Yo ur vehicle may therefore di.er, in individual
cases, from that shown in the descriptions and
illust rations.
The illustrations in this operator's manual show a
leT-hand drive vehicle. On right-hand-d rive ve hi-
cles, the la yout of car parts and control elements
di.ers accordingl y. Mercedes-Benz is constantly de
veloping its vehi-
cles fu rther.
Mercedes-Benz therefore reser vesth eright to
introduce changes in thefo llowing areas:
R Design
R Equipment
R Tech nical features
The following documents are integ ral parts of the
ve hicle:
R Digital operator's manual
R Printed operator's manual
R Service booklet
R Equipment-dependent supplements
R Supplementary documents
Ke ep these documents in theve hicle at all times.
Ensu rethat all documents are in theve hicle or
passed on in theeve nt of sale or rental.
2475844710Z102
2475844710Z102

Pr
ot
Pr otection of t
ection of t he en
he envir
vironment
onment
+ ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TE Environmental
damage due tooperating conditions and
personal driving st yleThe pollutant emission of
theve hicle is
directly related tothewa yyo u operate the
ve hicle.
Operate your vehicle in an environmentally
re sponsible manner tohelp pr otect the envi-
ro nment. Please obser vethefo llowing recom-
mendations on operating conditions and per-
sonal driving st yle.
Oper
Oper ating conditions:
ating conditions: #
Make sure that the tyre pressure is cor-
re ct. #
Do not car ryany unnecessary weight
(e.g. roof luggage rack s once you no lon-
ge r need them). #
Adhere tothe service inter vals.
A regula rly serviced vehicle will cont rib-
ute toenvironmental pr otection. #
Always ha vemaintenance workcar ried
out at a quali/ed specialist workshop.
P
P er
er sonal dr
sonal dr iving s
iving stytyle:
le: #
Do not depress the accelerator pedal
when starting the engine. #
Do not warm uptheve hicle while sta-
tionar y. #
Drive carefully and maintain a suitable
distance from theve hicle in front. #
Avoid frequent, sudden acceleration and
braking. #
Change gear in good time and use each
ge ar only up to00C3 of its maximum
engine speed. #
Switch o. theve hicle in stationary traf-
fi c, e.g. byusing the ECO start/s top
function. #
Drive in a fuel-e1cient manner. Obse rve
th e ECO display for an economical driv-
ing style. Plug-in h Plug-in h
ybr
ybrid
id
+ ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmental
pollution caused byirre sponsible disposal
of the high-voltage battery A high-voltage battery contains materials
which are harmful
tothe environment. #
Dispose of faulty high-voltage batteries
at a quali/ed specialist workshop. T T
ak
ak e-bac
e-bac k of end-of-lif
k of end-of-lif e v
e vehicles
ehicles
EU countr EU countr ies only:
ies onl y:
Mercedes-Benz will take back your end-of-life
ve hicle for environment-fri endly disposal in
accordance with the European Union (EU) End-of-
Life Vehicles Directi ve.
A network of vehicle take -back points and dis-
mantlers has been established foryo uto return
yo ur vehicle. You can lea veit at any of these
points free of charge . This makes an impor tant
cont ribution toclosing there cycling circle and
conserving resources. 24 24
Gene
ral no tes

ing state, component loads, maintenance
requ ire-
ments and tech nical events or faults.
Depending on theve hicle equipment, thefo llo w-
ing data are stored:
R operating status of system components, such
as /ll le vels, tyre pressure or battery status
R malfunctions or faults in impor tant system
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag depl oyment or the inter vention
of stability cont rol systems
R information on events leading tovehicle dam-
age
In cer tain cases, it may be requ ired tostore da ta
th at wo uld ha veotherwise been used only temp o-
rari ly. This may be the case if theve hicle has
de tected a malfunction, forex ample.
If yo u use services, such as repair services and
maintenance work, stored operational data as
we ll as theve hicle identi/cation number can be
re ad out and used. They can be read out by
service network emplo yees, such as workshops
and manu facturers or third parties, such as break- down services. The same is true in
the case of
wa rranty claims and quality assurance measures.
In general, there adout is per form ed via the legally
prescribed port forth e diagnostics connection in
th eve hicle. The operational data that are read out
document tech nical states of theve hicle or of
individual components and assist in the diagnosis
of malfunctions, compliance with warranty obli ga-
tions and quality impr ovement. Tothat end, these
data, in particular information about component
loads, tech nical events, malfunctions and other
fa ults may be transmitted along with theve hicle
identi/cation number tothe manufacturer. Fur-
th ermore, the manufacturer is subject toproduct
liability. Forth is reason the manufacturer also
uses operational data from theve hicle, forex am-
ple, forre calls. These data can also be used to
ex amine the customer's warranty and guarantee
claims.
Fa ult memories in theve hicle can be reset by a
service outl etor at your requ est as part of repair
or maintenance work. Conv
Conv enience and inf ot
enience and inf otainment functions ainment functions
Yo u can store con venience settings and individual
settings in theve hicle and change or reset them
at any time.
Depending on theve hicle equipment, this
includes thefo llowing settings, forex ample:
R seat and steering wheel positions
R suspension and climate cont rolsettings
R individual settings, such as interior lighting
Depending on the selected equipment, you can
import data into vehicle inf otainment functions
yo urself.
Depending on theve hicle equipment, this
includes thefo llowing data, forex ample:
R multimedia data, such as music, /lms or pho-
tosfo r playback in an integ rated multimedia
system
R address book data for use in connection with
an integ rated hands-free system or an integ ra-
te d navigation system
R entered navigation destinations
R data about the use of Internet services General no
tes
43 43

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

#
Press button 1.
The red or blue indicator lamp on button 1
will light up or go out. S
S
t
tationar
ationar y heat
y heat er/v
er/ventilation
entilation S
S
t
tationar
ationar y heat
y heat er/v
er/ventilation function
entilation function
% The following function is equipment-depend-
ent.
R The air inside theve hicle is heated or ventila-
te dto the set temp erature.
R The air inside theve hicle cann otbe cooled
down to temperatures below the outside tem-
perature.
R Ifth e outside temp erature changes, ventilation
mode automatically switches toheating mode
or heating mode automatically switches to
ve ntilation mode.
The stationary hea ter and theex haust gas outl et
are situated in front of theright-hand front wheel. Switc
Switc hing t
hing t he st
he st ationar
ationar y heat
y heater/v
er/ventilation
entilation on/o.
on/o.
via t
via t he oper
he oper ating unit
ating unit &
D
D AN
AN GER
GER Risk of fatal injury due topoison-
ous exhaust gases
If th eta ilpipe is bloc ked or su1cient ventila-
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi-
cle. This is the case in enclosed spaces or if
th eve hicle gets stuck in sno w,forex ample. #
Always switch the stationary heater o. in
enclosed spaces without an air extrac-
tion system, e.g. in garage s. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
ve hicle or the stationary heater is run-
ning. #
Open a wind owonthe side of theve hicle
fa cing away from the wind toensure an
adequate supply of fresh air. &
W
WARNING
ARNING Risk of /re due tohot station-
ary heater components and exhaust gases
Flammable materials such as lea ves, grass or
twigs may ignite. #
When the stationary heater is switched
on, make sure that:
R hot vehicle parts do not come into
contact with 0ammable materials.
R theex haust gas can 0ow out of the
stationa ryheater exhaust pipe unhin-
dered.
R theex haust gas does not come into
contact with 0ammable materials. *
N
NOOTE
TE Bat tery dischar gecaused bysta-
tionar y heater or stationaryventilation
ope ration Operating
the stationary heater or stationary
ve ntilation drains the batter y. #
ATer heating or ventilating theve hicle
twice, drive for a longer period of time. Climate control
163
163

ge
ar depending on the steering wheel gearshiT
paddle being pulled.
Yo u ha vetwo options tomanually shiT the auto-
matic transmission:
R Temp orary setting
R Perm anent setting
The gears shiT automatically when manual shiTing
is deactivated.
T
T em em por
por ar
ary se
y se tting:
tting: #
T
To activ
o activ at
ate:
e: Pull steering wheel gearshiT pad-
dle 1 or2.
Manual shiTing is activated for a short time.
The transmission position display sho ws0063
and the cur rent gear.
% How long the manual shiTing st ays activated
is dependant on various factors.
Manual shiTing can be automatical lydeactiva-
te d in thefo llowing cases:
R Changing the drive prog ram
R Restarting theve hicle
R When the transmission position 005Bis
engaged again R
Driving style #
T
T o
o shiT
shiT up:
up:Pull steering wheel gearshiT pad-
dle 2. #
T
T o
o shiT
shiT do
down:
wn: Pull steering wheel gearshiT
paddle 1.
If yo u pull and hold the steering wheel gear-
shiT paddle 1,the transmission shiTs tothe
lo we st possible gear. #
T
T o deactiv
o deactiv at
ate:
e: Pull steering wheel gearshiT
paddle 2and hold it in place.
The transmission position displ aysho ws005B.
P
P er
er manent se
manent se tting:
tting: #
Change todrive prog ram =(/ page 183). #
Select drive setting 0063(/ page 184). Gear Gear
shiT
shiT r
recommendation
ecommendation The
gearshiT recommendation assists you in
adopting an economical driving style. #
Ifth ege arshiT recommendation 1appears
next tothe transmission position displa y,shiT
to there commended gear. Using kic Using kic
kdo
kdown
wn #
Maximum acceler
Maximum acceler ation:
ation:depress the accelera-
to r pedal be yond the pressure point.
To protect against engine overrev ,th e automatic
transmission shiTs up tothe next gear when maxi-
mum engine speed has been reached. Glide mode function
Glide mode function190
190
Driving and parking

If dr
owsiness or increasing lapses in concent ra-
tion are de tected, theATTENTION ASSIST: Take
a break! warning appears in the Instrument Dis-
pla y.Yo u can ackno wledge the message and take
a break where necessar y.Ifyo u do not take a
break and ATTENTION ASSIST continues todetect
increasing lapses in concentration, you will be
wa rned again aTer a minimum of 15 minutes. Yo
u can ha vethefo llowing status information for
AT TENTION ASSIST displa yed in the assistance
menu of the on-board computer:
R The length of the journey since the last break.
R The attention le vel de term ined byATTENTION
ASSIS T: -
the fuller the circle, the higher the atten-
tion le vel de term ined
- asyour attention wanes, the circle in the
cent reofthe display becomes smaller
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended message appears.
If a warning is given in the Instrument Displa y,the
multimedia system o.ers tosear chfor a rest
area. You can select a rest area and start naviga-
tion tothis rest area. This function can be acti va-
te d and deactivated in the multimedia system.
If AT TENTION ASSIST is deactivated, theÛ
symbol appears in the assistance graphic in the
Instrument Displ ay. ATer theve hicle is star ted,
AT TENTION ASSIST is automatically activated. The
last selected sensitivity le velre mains stored.
Syst
Syst em limits
em limits
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range. Pa
rticular lyin thefo llowing situations, ATTENTION
ASSIST only functions in a restric ted manner and
wa rnings may be dela yed or not occur:
R Ifyo u ha vebeen driving for less than appr ox-
imately 30 minutes.
R Ifth ero ad condition is poor (une venro ad sur-
fa ce or po tholes).
R Ifth ere is a strong side wind.
R Ifyo u adopt a sporty driving style (high corner-
ing speeds or high rates of acceleration).
R IfAc tive Steering Assist is activated and active
(/ page 241).
R Ifth e time has been set incor rectl y.
R Ifyo uch ange lanes and vary your speed fre-
qu ently in active driving situations.
The ATTENTION ASSIST dr owsiness or alertness
assessment is reset and restar ted when continu-
ing the journey in thefo llowing situations:
R You switch o. theve hicle.
R Ifyo u unfasten your seat belt and open the
driver's door (e.g. tochange drivers or take a
break). Driving and parking
231
231

Se
Se
tting A
tting A TTENTION ASSI ST
TTENTION ASSIST
Multimedia system:
4 © 5
Settings 5
Assistance
5 Attention Assist
Se
Se tting op
tting op tions
tions #
Select Standard ,Sensitive orOff .
Sugg
Sugg es
esting a rting a r es
est art ar ea
ea #
Select Suggest rest area .#
Activate or deactivate the function.
If AT TENTION ASSIST de tects fatigue or
increasing lack of attention, it suggests a rest
area in the vicinity. #
Select the suggested rest area.
Yo u are guided tothe selected rest area. Cr
Cr
uise contr
uise control and limit ol and limit er
er F
F
unction of cr
unction of cr uise contr
uise controlol
Cruise control regula testh e speed totheva lue
selected bythe driver.
If yo u accelerate toove rtake, forex ample, the
stored speed is not dele ted. If youre mo veyour fo
ot from the accelerator pedal aTer overtaking,
cruise cont rol will resume speed regulation back
to the stored speed.
Yo u can store any speed abo ve20 km/h up tothe
maximum design speed or up tothe set winter
tyre limit.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 223).
Display Display s in t
s in the Ins
he Ins tr
trument Display
ument Display
R h (gre y): cruise control is selected but not
yet activated.
R h (gre en): cruise control is active.
A stored speed appears along with theh dis-
pla y.
% The segments extending from the cur rent
stored speed tothe end of the scale, or tothe
set winter tyre limit, light up in the speedome-
te r. Syst Syst
em limits em limits
Cruise control may be unable tomaintain the
stored speed on uphill gradients. The stored
speed is resumed when thegr adient evens out.
Change into a lo werge ar in good time on long and
steep downhill gradients. Take particular no teof
th is when driving a laden vehicle. By doing so, you
will make use of the engine's braking e.ect. This
re lie vesth e load on the brake system and pre-
ve nts the brakes from overheating and wearing
to oqu ickl y.
Do not use cruise control in thefo llowing situa-
tions:
R in tra1c situations which requ ire frequent
ch anges of speed, e.g. in heavy tra1c, on
winding roads
R on slippery roads. Accelerating can cause the
drive wheels tolose traction and theve hicle
could then skid.
R when visibility is poor
F
F unction of t
unction of t he limit
he limiter
er
The limiter restricts the speed of theve hicle. To
re duce the speed tothe set speed, the limiter
applies the brakes automaticall y.232
232
Driving and parking

%
Ifyo u brake, deactivate ESP ®
or if ESP ®
inter-
ve nes, cruise cont rol is deactivated. The varia-
ble limi ter is not deactivated.
Inf
Inf or
ormation on t
mation on t he per
he per manent limit
manent limit er
er
If th eve hicle should ne verex ceed a speci/c
speed (e.g. for driving in winter tyre mode), you
can set this speed with the permanent limiter.
Yo u do this by limiting the speed between
160 km/h and 240 km/h in the multimedia sys-
te m (/ page 235).
Shortly before the set speed is reached, it
appears in the Instrument Displa y.When you con-
/rm the message, display messages no longer
appear until you switch o. theve hicle. The speed
will only be displ ayed again once theve hicle has
been restar ted or if the set speed is changed.
The permanent limi ter does not switch topassive
mode even during kickdown and the driven speed
re mains below the set speed. Se
Se tting t
tting t he limit speed f
he limit speed f or wint
or winter tyr
er tyres
es
Multimedia system:
4 © 5
Settings 5
Vehicle
5 Winter tyres limit #
Select a speed or deactivate the function. A
A
ctiv
ctiv e Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC
ONIC F F
unction of A
unction of A ctiv ctive Dist
e Dist ance Assis
ance Assist DIS t DISTR
TRONIC
ONIC
Ac tive Distance Assist DISTRONIC maintains the
set speed on free-0owing roads. If vehicles in
front are de tected, the set distance is maintained,
if necessar y,until theve hicle comes toa halt. The
ve hicle accelerates or brakes depending on the
distance totheve hicle in front and the set speed.
The speed and distance totheve hicle in front are
set and sa ved using the steering wheel.
Av ailable speed range:
R V
Vehicles wit
ehicles wit hout Dr
hout Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
20 km/h - 200 km/h
R V
Vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
20 km/h - 210 km/h Other
features of Active Distance Assist
DISTRONIC:
R Adjusts the driving style depending on the
selected drive prog ram (fuel-saving, comfor ta-
ble or dynamic)
R Initiates acceleration tothe stored speed if the
turn signal indica tor is switched on tochange
to theove rtaking lane
R V
Vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e:
- Reacts tostationa ryvehicles de tected in
urban speed ranges (e xcept bicycles and
mo torc yc les)
- Take s one-sided overtaking restrictions
into account on mo torw ays or on multi-
lane roads with separate car riag ewa ys
(countr y-dependent)
V
V ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance P ack
ack ag
age and
e and
P
P ar
ar king P
king P ack
ackag
age:
e: ifth eve hicle has been braked to
a standstill on multi-lane, separate car riag ew ays
by Active Distance Assist DISTRONIC, it can auto-
matical lyfollow theve hicle in front when driving
o. again within 30 seconds. If a critical situation
is de tected when driving o., a visual and acoustic
wa rning is given indicating that the driver must Driving and parking
235 235

&
W
W ARNI NG
ARNI NGRisk of an accident due to
Ac tive Distance Assist DISTRONIC being
acti vewhen you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Distance Assist
DISTRONIC onl y,theve hicle can rollaw ay. #
Always deacti vate Ac tive Distance Assist
DISTRONIC and secure theve hicle to
pr ev ent it from rolling away before you
lea vethe driver's seat. #
Select Owiththe leT rock er switch.
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter-
ve nes, Active Distance Assist DISTRONIC is
deactivated.
Incr
Incr easing/decr
easing/decr easing t
easing the st
he stor
ored speed
ed speed #
1 km/h: press roc ker switch 1upM or
down Ntothe pressure point, or press and
hold (increments of 1 km/h).
or #
10 km/h: press rock er switch 1upM or
down Nbeyond the pressure point, or
press and hold (increments of 10 km/h).
or #
Accelerate theve hicle tothe desired speed
and press rock er switch 1upM.
Changing t
Changing t he
hespeci/ed
speci/ed dist
distance t
ance t o t
o the v
he v ehicle in
ehicle in
fr
fr ont
ont #
T
To r
o r educe t
educe t he
hespeci/ed
speci/ed dist
distance:
ance: pressthe
ri ght rock er switch up ( Ñ). #
T To incr o incr ease t
ease t he
hespeci/ed
speci/ed dist
distance:
ance: pressthe
ri ght rock er switch down ( Ò).
F
F unction of A
unction of A ctiv
ctive Speed Limit Assist
e Speed Limit Assist
If a change in the speed limit of 20 km/h or more
is de tected and automatic adoption of speed lim-
its is activated, the new speed limit is automati-
cally adop ted as the stored speed (/ page 252).
The driven speed is adjusted when theve hicle is
le ve l with the tra1c sign at the latest. In the case
of signs indicating entry into an urban area, the
speed is adap ted according tothe speed permit-
te d within the urban area. The speed limit display in
the Instrument Display is alw ays updated when
th eve hicle is le vel with the tra1c sign.
If th ere is no speed restriction on an unlimited
str etch ofroad (e.g. on a mo torw ay),th ere com-
mended speed is automatical lyadop ted as the
stored speed. The system uses the speed stored
on an unlimited str etch ofroad as there commen-
ded speed. If you do not alter the stored speed on
an unlimited str etch ofroad, there commended
speed is 130 km/h.
If Ac tive Distance Assist DISTRONIC has been put
into passive mode bypressing the accelerator
pedal, only speed limits which are higher than the
set speed are adop ted.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 223).
Syst
Syst em limits em limits
The system limits of Tra1c Sign Assist apply to
th e de tection of tra1c signs (/ page 250).
Speed limits below 20 km/h are not automatical ly
adop tedby the system as the stored speed. Tem-
porary speed restrictions (e.g. for a cer tain time
or due towe ather conditions) cann otbe proper ly Driving and parking
239
239