2022 MERCEDES-BENZ B-CLASS HATCHBACK Owners Manual

=
v ehicles with hybrid drive: switching oM the
hybrid system and high-voltage on-board elec-
trical system
= unlocking the vehicle doors
= lowering the side windows
= displaying the emergency guide in the multi-
media system display
= switching on the interior lighting
Function of the post-collision brake
Depending on the accident situation, the post-col-
lision brake can minimise the severity of a further
collision or even avoid it.
If an accident is detected, the post-collision brake
can implement automatic braking. When the vehi-
cle has come to a standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking by taking
the following actions:
= braking more strongly than automatic braking
= fully depressing the accelerator pedal with
force Safely transporting children in the vehicle
Always observe when children are travelling in the
v
ehicle %
Also strictly observe the safety notes for the
speciNc situation. In t

his way you can recog-
nise potential risks and avoid dangers if chil-
dren are travelling in the vehicle
(  page 63).
Be diligent
Bear in mind t
hat negligence when securing a
child in the child restraint system may have seri-
ous consequences. Always be diligent in securing
a child carefully before every journey.
Never allow babies and children to travel sitting
on the lap of another vehicle occupant.
To improve protection for children younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you observe the fol-
lowing information:
= Always secure the child in a child restraint sys-
tem suitable for this Mercedes-Benz vehicle.
= The child restraint system must be appropriate
to the age, weight and size of the child. =
The v
ehicle seat must be suitable for Ntting a
child restraint system (  page 67).
Accident statistics show that children secured on
the rear seats are generally safer than children
secured on the front seats. For this reason,
Mercedes-Benz strongly advises that you Nt a
child restraint system to a rear seat.
The generic term child restraint system
The generic term child restraint system is used in
this Owner's Manual. A child restraint system is,
for example:
= a baby car seat
= a rearward-facing child seat
= a forward-facing child seat
= a child booster seat with a backrest and seat
belt guide
Mercedes-Benz recommends using a child
booster seat with a backrest.
The child restraint system must be appropriate to
the age, weight and size of the child. 62
Occupant safety

Observe laws and legal requirements
Alw
ays observe the legal requirements when
using a child restraint system in the vehicle.
Make sure that the child restraint system is
approved in accordance with the valid test speciN-
cations and guidelines. Further information can
be obtained at a qualiNed specialist workshop.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this purpose.
Only use approved child restraint systems
Only child restraint systems that meet the follow-
ing UNECE standards are permitted for use in the
vehicle:
= UN-R44
= UN-R129 (i-Size child restraint systems)
Information on child restraint system approval
categories and details on the approval label on
the child restraint system ( page 67). Detecting risks, avoiding danger
Securing systems for child restraint systems in
t
he vehicle
Only use the following securing systems for child
restraint systems:
= the ISOFIX or i-Size securing rings
= the vehicle's seat belt system
= the Top Tether anchorages
Fitting an ISOFIX or an i-Size child restraint sys-
tem is preferred.
Simply attaching to the securing rings on the vehi-
cle can reduce the risk of Ntting the child restraint
system incorrectly.
When securing a child with the integrated seat
belt of the ISOFIX or i-Size child restraint system,
always comply with the permissible gross weight
for the child and child restraint system
( page 71).
Advantage of a rearward-facing child restraint sys-
tem
It is preferable to transport a baby or a small child
in a suitable rearward-facing child restraint sys- tem. In this case, the child sits in the opposite
dir
ection to the direction of travel and faces back-
wards.
Babies and small children have comparatively
weak neck muscles in relation to the size and
weight of their head. The risk of injury to the cer-
vical spine during an accident can be reduced in a
rearward-facing child restraint system.
Always secure a child restraint system correctly &
WARNING Risk of injur
y or death due to
incorrect installation of the child restraint
system
The child can then not be protected or
r
estrained as intended. 
Be sure to comply with the manufactur-
er's ins
tallation instructions for the child
restraint system and its correct use. 
Make sure that the entire base of the
c
hild restraint system always rests on
the sitting surface of the seat. Occupant safety
63


Never place objects (e.g. cushions)
under or behind t
he child restraint sys-
tem. 
Use child restraint systems only with the
or

iginal cover designed for them. 
Always replace damaged covers with
g

enuine covers. &
WARNING Risk of injur
y or death due to
unsecured child restraint systems in the
vehicle
If the child restraint system is incorrectly Ntt
ed
or not secured, it can become detached.
The child cannot then be protected or
restrained as intended.
The unused child restraint system can be
become detached and strike vehicle occu-
pants. 
Always comply with the manufacturer's
ins
tallation instructions for the child
restraint system and its correct use. 
Always Nt c
hild restraint systems cor-
rectly, even if they are transported
unused in the vehicle. =
Alw
ays observe the child restraint system
manufacturer's installation and operating
instructions as well as the vehicle-speciNc
information:
- Fitting the ISOFIX or i-Size child restraint
system to the rear seat ( page 71).
- Securing the child restraint system with
the seat belt on the rear seat
( page 76).
- Securing the child restraint system with
the seat belt on the front passenger seat
(  page 78). Observe the speciNc
instructions for the rearward-facing and
forward-facing child restraint systems
(  page 77).
If the front passenger seat is occupied,
ensure, both before and during the jour-
ney, that the status of the front passenger
airbag is correct for the current situation
(  page 58). =
Obser
ve the warning labels in the vehicle inte-
rior and on the child restraint system.
= Also secure Top Tether if present.
Do not modify the child restraint system &
WARNING Risk of injur
y due to modiNca-
tions to the child restraint system
The child restraint system can no longer func-
tion pr
operly. This poses an increased risk of
injury. 
Never modify a child restraint system. 
Only aPx accessor
ies which have been
specially approved for this child restraint
system by the child restraint system's
manufacturer. Mercedes!

Only use child restraint systems which are in
pr
oper working condition &
WARNING Risk of injur
y or death caused
by the use of damaged child restraint sys-
tems
Child restraint systems or their retaining sys-
t
ems that have been subjected to stress in an
accident may not be able to perform their
intended protective function.
It may be the case that the child cannot be
properly restrained. 
Always immediately replace child
r
estraint systems that have been dam-
aged or involved in an accident. 
Have the securing systems for the child
r
estraint systems checked at a qualiNed
specialist workshop before installing a
child restraint system again. Avoid direct sunlight
&
WARNING Risk of bur
ns when the child
seat is exposed to direct sunlight
If the child restraint system is exposed to
dir
ect sunlight or heat, parts could heat up.
Children could suMer burns from these parts,
particularly on metallic parts of the child
restraint system. 
Always make sure that the child restraint
sy
stem is not exposed to direct sunlight. 
Protect the child restraint system with a
blank

et, for example. 
If the child restraint system has been
e
xposed to direct sunlight, allow it to
cool before securing a child into it. 
Never leave children unattended in the
v
ehicle. Observe when stopping or parking
&
WARNING Risk of accident and injur
y due
to leaving children unattended in the vehi-
cle
If children are les unatt
ended in the vehicle,
they could, in particular:
= open doors, thereby endangering other
persons or road users.
= get out and be struck by oncoming traPc.
= operate vehicle equipment and become
trapped, for example.
In addition, the children could also set the
vehicle in motion by, for example:
= releasing the parking brake.
= changing the transmission position.
= starting the vehicle. 
Never leave children unattended in the
v
ehicle. 
When leaving the vehicle, always take the
k
ey with you and lock the vehicle. Occupant safety
65


Keep the vehicle key out of the reach of
c hildren. &
WARNING Risk of f
atal injury due to expo-
sure to extreme heat or cold in the vehicle
If persons, particularly children, are subjected
t
o prolonged exposure to intense heat or cold,
there is a risk of severe injury or even death. 
Never leave persons, particularly chil-
dr
en, unattended in the vehicle. Overview of recommended child restraint systems
%
Further information on the correct child
r

estraint system can be obtained at a quali-
Ned specialist workshop. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. Securing with ISOFIX
W

eight category 0+ (up to 13 kg and up to
approx. 15 months) Type
1
BABY SAFE plus
Size category E
Approval E1 04 301 146
Order number 2
B6 6 86 8224
1 Manufacturer: Britax R

Weight category II/III (15 to 36 kg and from
appr oximately 3 to 12 years) Type
1
KIDFIX XP
Approval E1 04 301 304
Order number 2
A 000 970 49 02 Type
1
AMG KIDFIX XP
Approval E1 04 301 304
Order number 2
A 000 970 33 02
1 Manufacturer: Britax R

Approval categories in accordance with UN-R44
Example of an approval label
= U niversal: child restraint systems in the "Uni-
versal" category are approved for installation
in vehicles. They can be used, in accordance
with overviews of the suitability of seats for
securing child restraint systems, on seats
labelled U, UF or IUF. The identiNcation
IUF r
efers to ISOFIX child
restraint systems in the "Universal" category.
These child restraint systems must also be
secured using Top Tether or support points.
= Semi-Universal: child restraint systems in the
"Semi-Universal" category may only be used if
the vehicle and vehicle seat are listed in the
child restraint system manufacturer's vehicle
model list.
= Vehicle-speciNc: child restraint systems in the
vehicle-speciNc category may only be used if
the vehicle and vehicle seat are listed in the
child restraint system manufacturer's vehicle
model list. Approval categories in accordance with UN-R129
Example of an approval label
= i!

The identiNcation
i!