2021 MERCEDES-BENZ B-CLASS HATCHBACK sunroof

R
R
ectifying pr
ectifying pr oblems wit
oblems with t
h the sliding sunr
he sliding sunr oof
oof &
W
WARNING
ARNING Risk of becoming trapped or
fata l injuries when the sliding sunroof is
closed again
If th e sliding sunroof is closed again immedi-
ately aTer it has been bloc ked or reset, it will
close with increased forc e. #
Make sure that no parts of the body are
in the closing area. #
Release the button immediately if some-
body becomes trapped.
or #
Brie0y press the button in any direction
during the automatic closing process.
The closing process will be stopped. The sliding sunr
The sliding sunr
oof canno
oof cannot be closed and y
t be closed and y ou can-
ou can-
no
no t see t
t see t he cause.
he cause.
% The term "sliding sunroof" also refers to the
panorama sliding sunroof.
If th e sliding sunroof is obstructed during closing
and reopens again slightl y: #
Immediately aTer automatic reve rsing, pull
and hold the0057 button down again tothe
point of resis tance until the sliding sunroof is
closed.
The sliding sunroof will be closed with
increased forc e.
If th e sliding sunroof is obstructed again and
opens again slightl y: #
Repeat the pr evious step.
The sliding sunroof will be closed again with
increased forc e.
V V ehicles wit
ehicles wit h a panor
h a panorama sliding sunr
ama sliding sunr oof: t
oof: the slid-
he slid-
ing sunr
ing sunr oof or t
oof or the r
he roller sunblind is no
oller sunblind is no t oper
t operating
ating
smoot
smoot hly
hly.
. #
Reset the sliding sunroof and thero ller sun-
blind.
R
R ese
ese tting t
tting t he sliding sunr
he sliding sunr oof and t
oof and the r
he roller sun-
oller sun-
blind
blind #
Pull and hold the0057 button little bylittle
until the sliding sunroof is fully closed. #
Pull and hold the0057 button little bylittle
until thero ller sunblind is fully closed. #
Use automatic operation tofully open and
th en close the sliding sunroof. Anti-t
Anti-theT
heTprot
pr otection
ection F
F
unction of t
unction of t he immobiliser
he immobiliser The immobiliser pr
events your vehicle from being
star ted without the cor rect key.
The immobiliser is automatically activated when
th eve hicle is switched o., and deactivated when
th eve hicle is switched on. A A
T
TA
A (Anti-
(Anti- TheT
TheT Alar
Alarm syst
m syst em)
em) F
F
unction of t
unction of t heAT
he ATA systA syst em
em
If th eATA system is primed, a visual and audible
alarm is triggered in thefo llowing situations:
R when a door is opened
R when theta ilgate is opened
R when the bonnet is opened
R when interior pr otection is triggered
(/ page 104) 102
102
Opening and closing

R
aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 170)
R aTer unlocking theve hicle using KEYLESS-GO
R when using HANDS-FREE ACCESS
Information on collision de tection on a par ked
ve hicle (/ page 221). Pr
Pr
iming/deactiv
iming/deactiv atingtow
ating tow-awa
-a wa y pr ot
y pr otection
ection Multimedia system:
4 © 5
Settings 5
Quick access #
Prime or deactivate Tow-away protection.
To w- awa y protection is primed again in thefo llo w-
ing cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again.
% Ifqu ick access is una vailable, select theVehi-
cle submenu in theSettings main menu to
prime or deactivate tow- awa y protection. F
F
unction of int
unction of int er
erior pr ot
ior pr otection
ection When interior pr
otection is primed, a visual and
audible alarm is triggered if mo vement is de tected
in theve hicle interior.
Interior pr otection is primed automatically aTer
appr oximately ten seconds:
R aTer locking theve hicle with thekey
R aTer locking theve hicle using KEYLESS-GO
Interior pr otection is only primed when thefo llo w-
ing components are closed:
R doors
R tailgate
Interior pr otection is automatically deactivated:
R aTer pressing theÜ or008B button on the
key
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 170)
R aTer unlocking theve hicle using KEYLESS-GO
R when using HANDS-FREE ACCESS The
following situations can lead toafa lse alarm:
R when there are moving objects such as mas-
cots in theve hicle interior
R when a side wind owis open
R when a panoramic sliding sunroof is open Pr
Pr
iming/deactiv
iming/deactiv ating int
ating inter
erior pr ot
ior pr otection
ection Multimedia system:
4 © 5
Settings 5
Quick access #
Prime or deactivate Interior motion sensor .
Interior pr otection is primed again in thefo llowing
cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again.
% Ifqu ick access is una vailable, select theVehi-
cle menu under Settingstoprime or deacti-
va te interior pr otection. 104 104
Opening and closing

A
A
djus
djus ting t
ting t he length
he length #
LiT load compartment 0oor 1(inthe bottom
position in theex ample) only slightly using
handle 3and pull it towa rdsyo u. #
Insert load compartment 0oor 1into rear /x-
tures 2. #
Fold load compartment 0oor 1down. A
A
tt
tt ac
ac hing a r
hing a r oof lugg
oof lugg ag
age r
e r ack
ack &
W
WARNING
ARNING Risk of accident due toexceed-
ing the maximum roof load
The vehicle cent reofgrav ity and the usual
driving characteristics as well as the steering
and braking characteristics alter.
If yo uex ceed the maximum roof load, the driv-
ing characteristics, as well as steering and
braking, will be greatly impaired. #
Neverex ceed the maximum roof load
and adjust your driving style. Yo
u will /nd information on the maximum roof
load in the "Technical data" section.
* N
NO OTE
TE Damage totheve hicle due tonot
observing the maximum permitted head-
ro om clearance If
th eve hicle height is greater than the maxi-
mum permitted headroom clearance, thero of
and other parts of theve hicle may be dam-
aged. #
Obser vethe signposted headroom clear-
ance. #
Ifth eve hicle height is greater than the
permitted headroom clearance, do not
enter. #
Obser vethech anged vehicle height with
add-on roof equipment. *
N NOOTE
TE Vehicle damage from non-appr oved
ro of luggage racks The
vehicle could be damaged byroof luggage
ra ck sth at ha venot been tested and appro ved
fo r Mercedes-Benz. #
Use only roof luggage rack ste sted and
appro vedfo r Mercedes-Benz. #
Depending on theve hicle equipment,
ensu rethat the sliding sunroof can be
fully raised when thero of luggage rack is
/t ted. #
Depending on theve hicle equipment,
ensu rethat theta ilgate can be fully 132
132
Seats and st
owing

opened when
thero of luggage rack is /t-
te d. #
Position the load on thero of luggage
ra ck in such a wayth at theve hicle will
not sus tain damage even when it is in
motion. *
N
NO OTE
TE Damage tothe panorama sliding
sunroof due tonon-appro vedro of luggage
ra cks The panorama sliding sunroof may be dam-
aged bythero of luggage rack ifyo u attem ptto
open it when using a roof luggage rack not
te sted and appro vedfo r Mercedes-Benz. #
When a roof luggage rack is /t ted, open
th e panorama sliding sunroof only if this
has been tested and appro vedfor
Mercedes-Benz.
The pano rama sliding sunroof may be raised
to allow ventilation of theve hicle interior. *
N
NOOTE
TE Damage tothe co vers The co
vers may be damaged and scratched
when being opened. #
Do not use me tallic or hard objects. #
Carefully fold co vers 1 upwards in the direc-
tion of the ar row. #
Secure thero of luggage rack tothefa stening
points benea thcovers 1 . #
Comply with the installation instructions of the
ro of luggage rack manufacturer. #
Secure the load on thero of luggage rack. Soc
ke
Soc kets
ts Using t
Using t
he 12 V soc ket
he 12 V soc ket R
R
eq
eq uir
uir ements:
ements:
R Only devices up toa maximum of 180 W
(15 A) are permissible.
Depending on theve hicle equipment, theve hicle
has thefo llowing 12 V soc kets:
R Inthe st owage compartment in the front
centre console
R Inthe load compartment Seats and st
owing
133
133

R
The bonnet is closed.
R The doo rsare closed and loc ked.
R The windo wsand sliding sunroof are closed. #
Start theve hicle using the smartphone.
ATer every engine start, the engine runs for
te n minutes.
Yo u can car ryout a maximum of two consecutive
starting attem pts. You must start the engine with
th eke y before trying tostart theve hicle again
with the smartphone.
Yo u can switch o. theve hicle at any time as fol-
lo ws:
R Viath e Smartphone App
R By pressing theÜ orß button on the
key
% Further information can be found in the
smartphone app.
Secur
Secur ing t
ing the v
he v ehicle ag
ehicle ag ains
ainst st
t star
arting bef
ting bef or
ore car ry-
e car ry-
ing out maint
ing out maint enance or r
enance or repair w
epair wor
ork:
k: #
Switch on the hazard warning light system.
or #
Unlock the doors.
or #
Open a side window or the sliding sunroof. R
R
unning-in not
unning-in not es
es To
preser vethe engine during the /rst 1,500 km:
R Drive at varying road speeds and engine
speeds.
R Do not drive at speeds greater than
140 km/h.
R Drive theve hicle in drive prog ram A
or ;.
R ShiT tothe next highest gear at theve ry latest
when the needle reaches the last third before
th ere d area in there v counter.
R Do not shiT down manual lyin order tobrake.
R Avoid overstraining theve hicle, e.g. driving at
full thro ttle.
R V
V ehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: do not
depress the accelerator pedal be yond the
pressure point (kickdown). R
Only increase the engine speed gradually and
accelerate theve hicle tofull speed aTer
1,500 km.
This also applies when the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing running-in
no tes:
R In cer tain driving and driving saf ety sy stems,
th e sensors adjust automatically while a cer-
ta in distance is being driven aTer theve hicle
has been deli vered or aTer repairs. Full sys-
te m e.ectiveness is not reached until the end
of this teach-in process.
R Brakepads, brake disks and tyres that are
either new or ha vebeen replaced only achie ve
optimum braking e.ect and grip aTer se veral
hund red kilometres of driving. Compensate for
th ere duced braking e.ect byapplying greater
fo rc eto the brake pedal. 172
172
Driving and parking

*
N
NO
OTE
TE Damage totheve hicle due toitro ll-
ing away #
Always secure theve hicle against rolling
awa y. #
Bring theve hicle toa standstill bypressing the
brake pedal. #
Ongradients, turn the front wheels so that the
ve hicle will rollto wa rdsth eke rb if it starts
moving. #
Apply the electric parking brake. #
V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: Engage
/rst 0047orreve rsege ar 005E. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: Engage
transmission position 005Din a stationary vehi-
cle with the brake pedal applied
(/ page 188). #
Switch o. theve hicle bypressing the1 but-
to n. #
Release the service brake slo wly. #
Get out of theve hicle and lock it.
% When you park theve hicle, you can still oper-
ate the side windo wsand the panoramic slid-
ing sunroof for appr oximately four minutes if
th e driver's door is closed. Gar
Gar
ag
age door opener
e door opener Pr
Pr
ogr
ogr amming butt
amming butt ons f
ons for t
or the g
he g ar
arag
ag e door opener
e door opener &
D
DAN
AN GER
GER Risk of fatal injuries caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of injury bybecoming
trapped when opening and closing a
ga rage door
When you operate or prog ram a garage door
with an integ ratedga rage door opener, per-
sons can become trapped or struck bythe
ga rage door if they stand wi thin its range of
mo vement. 216 216
Driving and parking

*
N
NO
OTE
TE Damage from automatic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer tain
situations:
R Active Brake Assist
R Active Distance Assist DISTRONIC
R HOLD function
R Active Parking Assist
To avoid damage totheve hicle, deactivate
th ese systems in thefo llowing or similar situa-
tions: #
during towing #
in a car wash *
N
NOOTE
TE Damage due tounsuitable car wash #
Before driving into a car wash make sure
th at the car wash is suitable forth eve hi-
cle dimensions. #
Ensu rethere is su1cient ground clear-
ance between the underbody and the
guide rails of the car wash. #
Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is su1cient. To
avo id damage toyour vehicle when using a car
wa sh, ensu rethefo llowing beforehand:
R Active Distance Assist DISTRONIC is deactiva-
te d.
R The HOLD function is switched o..
R The side windo wsand sliding sunroof are com-
ple tely closed.
R The blo werfo rth eve ntilation/heating is
switched o..
R The windsc reen wiper switch is in position 005A.
R The key is at a minimum dis tance of 3 m away
from theve hicle. Otherwise theta ilgate could
open unintentionall y.
R In automatic car washes with con veyo r sys-
te ms:
- Neutral 005Cis engaged. -
V Vehicles wit ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: If
yo uwo uld like tolea vetheve hicle while it
is being washed, make sure theke y is
located in theve hicle. The park position
005D isotherwise automatically engaged.
% If, aTer the car wash, youre mo vethewax
from the windscreen and wiper rubbers, this
will pr event smearing and reduce wiper noise.
A
A ut
ut omatic car w
omatic car w ash mode
ash mode
In car wash mode, theve hicle is prepared for driv-
ing into the automatic car wash. Car wash mode
can be activated at a speed of up to20 km/h
Ac tivate (/ page 345).
The following settings are made when car wash
mode is activated:
R The outside mir rors are folded in.
R Topreve ntthe windscreen washer system
from starting up automaticall y,thera in sensor
is deactivated.
R The rear wind owwiper is deacti vated.
R The windo wsand the sliding sunroof are
closed. 344
344
Maintenance and care

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