2021 MERCEDES-BENZ B-CLASS HATCHBACK reset

R
Frequent operation in mountainous terrain or
on poor road sur faces
R When the engine is oTen leT idling for long
periods
R Operation in particular lydusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air /lter, air /lter, engine oil and oil /lter,
fo rex ample, changed more frequentl y.The tyres
must be checked more frequently if theve hicle is
operated under increased loads. Further informa-
tion can be obtained at a quali/ed specialist work-
shop. Batt Batt
er
ery disconnection per
y disconnection per iods
iodsThe AS
SYST PLUS service inter val display can cal-
culate the service due date only when the battery
is connected. #
Display and no tedown the service due date
on the inst rument display before disconnect-
ing the battery (/ page 336). Engine com
Engine com
par
partment
tment A
A
ctiv
ctiv e bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otection)
ection) Oper
Oper
ation of t
ation of t he activ
he active bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otec-
ec-
tion)
tion)
In cer tain accident situations, the actuation of the
active bonnet reduces therisk of injury topedes-
trians. The rear area of the bonnet is raised by
appr oximately 70 mm.
Fo rth e drive tothewo rkshop, reset the actuated
active bonnet yourself (/ page 337).
ATer the active bonnet has been actuated, pedes-
trian pr otection may be limited.
Ha ve the full functionality of the active bonnet
re stored in a quali/ed specialist workshop.
R
R ese ese tting t
tting t he activ
he activ e bonnet
e bonnet &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. #
With your hand 0at, push down active bonnet
1 inthe area around the hinges on bo th
sides (ar rows ).
In doing so, the actuator is depressurised and
yo u may hear a hissing sound.
The engine bonnet must engage in position. #
Ifth e active bonnet can be raised slightly at
th ere ar in the area of the hinges, repeat the
step until it engages co rrectl y. Maintenance and ca
re
337
337

R
The air conditioning system is set toair-recir-
culation mode.
R Parking Assist PARKTRONIC is deactivated.
R V
V ehicles wit
ehicles wit h 360° Camer
h 360° Camer a:
a:the front image is
activated aTer appr ox. eight seconds.
If one of the settings cannot be selected, this is
displa yedby a% behind there specti veset-
ting.
Ab ove a speed of 20 km/h Car wash mode is
automatically deacti vated.
The following settings are reset when car wash
mode is deacti vated:
R The outside mir rors are folded out.
R The rain sensor is activated.
R The rear wind owwiper is activated.
R The air conditioning system is set tofresh air
mode.
R Parking Assist PARKTRONIC is reset tothe
pr ev iously selected setting.
R The windo wsand the sliding sunroof remain
closed. R
V
V ehicles wit ehicles wit h 360° Camer
h 360° Camer a:
a:the front image is
deactivated at speeds abo ve18 km/h. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating aut
ating automatic car w
omatic car w ash mode
ash mode R
R
eq
eq uir
uir ements:
ements:
R theve hicle is stationar y.
R the engine is running.
Multimedia system: 4 © 5
Settings 5
Quick access
A
A ctiv
ctiv ating aut
ating aut omatic car w
omatic car w ash mode
ash mode #
Select Car wash mode . #
Select Start.
If one of the settings cannot be selected, this is
displa yedby a% behind there specti veset-
ting.
% For an overview of the settings made when
activating automatic car wash mode
(/ page 343). Deactiv Deactiv
ating aut
ating aut omatic car w
omatic car w ash mode
ash mode #
Select Stop.
The automatic car wash settings are reset.
% The automatic car wash mode is automatically
deacti vated as soon as a speed of 20 km/h is
ex ceeded. Inf
Inf
or
ormation on using a high-pr
mation on using a high-pr essur
essure cleaner
e cleaner &
W WARNING ARNING Risk of an accident when using
high-pressure cleane rswith round-spr ay
nozzles
The water jet can cause extern ally invisible
damage.
Components damaged in this wa y may un ex-
pectedly fail. #
Do not use a high-pressure cleaner with
round-spr aynozzles. #
Have damaged tyres or chassis parts
re placed immediatel y. Maintenance and ca
re
345 345

R
R
ese
ese t function (MBUX multimedia syst
t function (MBUX multimedia syst em)
em) .... 301
R
R esidual heat
esidual heat............................................... 159
R
R est
est or
oring (f
ing (f act
actor
ory se
y se ttings)
ttings)
see Reset function (MBUX multimedia system)
R
R es
es tr
traint syst
aint syst em
em
Basic instructions forch ildren.................. 61
Fu nction in an accident............................ 47
Fu nctionality........................................... .47
Limited pr otection....................................46
Malfunction............................................. 47
Pr otection................................................ 46
Self-test...................................................47
Wa rning lamp........................................... 47
Rev
Rev er erse g
se g ear
ear
Engaging................................................ 188
Rev
Rev er
ersing camera
sing camera
Care...................................................... 348
Fu nction................................................ 258
Opening the camera co ver (360°
Camera)................................................ 263
Switching automatic operation on/o.
(360° Camera)...................................... 263
Rev
Rev er ersing lights (c
sing lights (c hanging bulbs)
hanging bulbs).................. 149
Rims (car
Rims (car e)
e).................................................. 348 R
R oll awa
oll awa y prot
y pr otection
ection
see HOLD function
R
R oller sunblind
oller sunblind
Sliding sunroof......................................... 98
R
R oof lining (car
oof lining (car e)
e).......................................... 349
R
R oof load
oof load.....................................................4 06
R
R oof load display
oof load display
Information............................................1 83
R
R oof lugg
oof lugg ag
age r
e r ack
ack
Loading.................................................. 132
Securing................................................ 132
R R oute
oute
Calculating............................................. 306
Selecting options................................... 306
R R out
out e guidance wit
e guidance wit h augment
h augmented r
ed reality
eality
Ac tivating............................................... 306
Displaying street names and house
numbers................................................ 306
R R out
out e-based oper
e-based oper ating-mode s
ating-mode strtrat
at egy
egy
Fu nction/no tes...................................... 181
R
R out
out e-based speed adapt
e-based speed adapt ation
ation
Fu nction................................................ 240
Setting.................................................. .241 R
R
un-0at
un-0at c
char
har act
acter
eristics
istics
MOExtended tyres................................. 354
R
R unning-in not
unning-in not es
es.......................................... 172 S
S
Safe
Safe ty syst
ty syst ems
ems
see Driving saf ety sy stem
Sa fe
Safe ty v
ty vest
est.................................................. .352
Searc
Searc h light
h light
Switching on/o. (contactless). .............. 294
Seat
Seat 4-waylumbar suppor t............................ 109
adjusting (electrically)............................ 109
Ad justing (Seat Com fort)........................ 108
Ad justing there ar seat (mechanical ly).... 109
Ad justing the seat backrest angle
(rear)..................................................... 125
Ad justment (without Seat Com fort
Pa ckage)................................................ 106
Con/guring settings.............................. .112
Cor rect driver's seat position................. 105
Fo lding back the backrest (rear)............. 124
Fo lding the backrest (front passenger
seat) forw ards....................................... .121 Index
521
521