MERCEDES-BENZ B-CLASS HATCHBACK 2022 Owners Manual

Vehicles with a tyre pressure monitoring sys-
t em: if an emergency spare wheel is Ntted, the
tyre pressure monitoring system cannot func-
tion reliably. For a few minutes aser an emer-
gency spare wheel is Ntted, the system may
still display the tyre pressure of the removed
wheel. Only restart the system again when the
emergency spare wheel has been replaced
with a new wheel.
Be sure to also observe the following further rela-
t
ed subjects:
= Notes on tyre pressure (  page 383)
= Tyre pressure table ( page 384)
= Notes on Ntting tyres ( page 387)
= Fitting an emergency spare wheel
( page 391) *nOating
t
he emergency spare wheel *
NOTE Ov
erheating due to the tyre inOation
compressor running too long 
Do not run the tyre inOation com
pressor
for longer than ten minutes without inter-
ruption. Requirements:
= The emer

gency spare wheel has been Ntted
correctly. ( page 391)
% Comply with the manufacturer's safety notes
on t
he sticker of the emergency spare wheel
and on the tyre inOation compressor. 
Remove the sticker with the label 80 km/h
fr

om the tyre inOation compressor housing
and aPx it to the instrument cluster within the
driver's Neld of vision. 
Remove the tyre inOation com
pressor from the
stowage space under the luggage compart-
ment Ooor. (  page 364, 363) 
Pull Nller hose 1 and plug 3 out of t
he tyre
inOation compressor housing. 
Insert plug 7 of Nller hose 1 in t
he socket
on the tyre inOation compressor and then turn
it until plug 7 engages. 
Unscrew the cap from the valve on the emer-
g
ency spare wheel. 
Screw union nut 2 of Nller hose 1 ont
o the
valve. 
Make sure on and oM switc
h 4 of the tyre
inOation compressor is set to 0. 
Insert plug 3 in a soc
ket in your vehicle.
= Cig
arette lighter socket 398
Wheels and tyres

=
12 V soc ket: ( page 137)
= Observe the notes on the cigarette lighter in
the Digital Owner's Manual
= Observe the notes on sockets: ( page 137) 
Press the start/stop button once to switch on
t
he power supply (  page 172). 
Press On/OM switc
h 4 on the tyre inOation
compressor to I.
The tyre inOation compressor is switched on.
The tyre is inOated. The tyre pressure appears
on manometer 5. 
Pump the tyre to the speciNed tyr
e pressure.
% The speciNed tyr
e pressure is stated on the
label of the emergency spare wheel. 
When the speciNed tyr
e pressure has been
reached, press on and oM switch 4 on the
tyre inOation compressor to 0.
The tyre inOation compressor is switched oM.
Press the start/stop button to switch oM t
he
power supply. 
If the tyre pressure is higher than the speciNed
pr
essure, press pressure release valve button 6 until t
he correct tyre pressure has been
reached.

Unscrew union nut 2 of Nller hose 1 fr
om
the valve. 
Screw the valve cap of the emergency spare
wheel ont

o the valve again. 
Stow Nller hose 1 and plug 3 in t
he lower
section of the tyre inOation compressor hous-
ing. 
Stow the tyre inOation com
pressor in the vehi-
cle. Wheels and tyres
399

Notes on technical data
The t echnical data was determined in accordance
with EU Directives. The data stated only applies to
vehicles with standard equipment. You can obtain
further information from a Mercedes-Benz Service
Centre.
Only for certain countries: you can Nnd vehicle-
speciNc vehicle data in the COC documents (CER-
TIFICATE OF CONFORMITY). These documents
are supplied when the vehicle is delivered. On-board electronics
Notes on tampering with the engine electronics
*
NOTE Pr
emature wear through improper
maintenance Improper maintenance may cause vehicle
com

ponents to wear more quickly and the
vehicle's operating permit may be invalidated. 
Always have work on the engine elec-
tr

onics and related components carried
out at a qualiNed specialist workshop. Two-way radios
Notes on Ntting
tw
o-way radios &
WARNING Risk of accident due t
o
improper work on two-way radios
If two-way radios are manipulated or r
etroNt-
ted incorrectly, the electromagnetic radiation
from the two-way radios can interfere with the
vehicle electronics and jeopardise the operat-
ing safety of the vehicle. 
You should have all work on electrical
and electr

onic components carried out
at a qualiNed specialist workshop. &
WARNING Risk of accident due t
o
improper operation of two-way radios
If you use two-way radios in the vehicle
im
properly, their electromagnetic radiation
can disrupt the vehicle's electronics. This is
the case in the following situations, in particu-
lar: =
The tw
o-way radio is not connected to an
exterior aerial.
= The exterior aerial is Ntted incorrectly or is
not a low-reOection aerial.
This could jeopardise the operating safety of
the vehicle. 
Have the lo
w-reOection exterior aerial Nt-
ted at a qualiNed specialist workshop. 
When operating two-way radios in the
v

ehicle, always connect them to the low-
reOection exterior aerial. *
NOTE In
validation of the operating permit
due to failure to comply with the instruc-
tions for installation and use The operating permit may be invalidated if the
ins
tructions for installation and use of two-way
radios are not observed. 
Only use approved frequency bands. 
Observe the maximum permissible out-
put po
wer in these frequency bands. 
Only use approved aerial positions. 400
Technical data

1
Front roof area
2 Rear roof area
3 Rear wings
On vehicles with a panoramic sliding sunroof, Nt-
ting an aer
ial to the front or rear roof area is not
permitted. On the rear wings, it is recommended that you
Nt
t
he aerial on the side of the vehicle closest to the
centre of the road.
Use Technical SpeciNcation ISO/TS 21609 (Road
Vehicles !

The following can be used in the vehicle without
r
estrictions:
= two-way radios with a maximum transmission
output of up to 100 mW
= RF transmitters with transmitter frequencies in
the 380 - 410 MHz frequency band and a
maximum transmission output of up to 2 W
(TETRA)
= mobile phones (2G/3G/4G)
There are no restrictions when positioning the
aerial on the outside of the vehicle for the follow-
ing frequency bands:
= Terrestrial Trunked Radio (TETRA)
= 70 cm frequency band
= 2G/3G/4G Regulatory radio
identiNcation and no
tesRegulatory radio
identiNcation of small com
po-
nents Manufacturer information about radio-based vehi-
cle com
ponents can be found using the key
phrase "Regulatory radio identiNcation in the Dig- ital Owner's Manual in the vehicle, on the internet
and in t
he app. Regulatory radio
identiNcation !

Vehicle
identiNcation plat e (example: Kuwait)
1 Vehicle manufacturer
2 Place of manufacture
3 Manufacturing date
4 Vehicle model
5 VIN Vehicle
identiNcation plat e (example: all other
countries)
1 Vehicle manufacturer
2 EU general operating permit number (only for
cer

tain countries)
3 VIN (vehicle identiNcation number)
4 Maximum permissible gross vehicle weight
(k
g) 5
Maximum permissible gross weight of vehicle
combination (k
g) (only for speciNc countries)
6 Maximum permissible front axle load (kg)
7 Maximum permissible rear axle load (kg)
8 Paint code
% The data shown in the illustration is example
dat
a. Technical data
403

VIN and engine number
1
Engine number stamped into the crankcase
2 VIN (vehicle identiNcation number) s tamped
into the crossmember
3 VIN (vehicle identiNcation number) as a label
at t
he lower edge of the windscreen
Only for certain countries: t
he VIN as a label at
the lower edge of windscreen 3 is only available
in some countries. Further information can be
obtained at a qualiNed specialist workshop. Operating Ouids
Notes on operating
Ouids &
WARNING Risk of injur
y from operating
Ouids harmful to your health
Operating Ouids ma
y be poisonous and harm-
ful to your health. 
Observe the text on the original contain-
er
s when using, storing or disposing of
operating Ouids. 
Always store operating Ouids sealed in
t
heir original containers. 
Always keep children away from operat-
ing Ouids. +
ENVIRONMENTAL NOTE
P
ollution of the
environment due to irresponsible disposal
of operating Ouids Incorrect disposal of operating
Ouids can
cause consider
able damage to the environ-
ment. 
Dispose of operating Ouids in an en
viron-
mentally responsible manner. Operating Ouids
include t
he following:
= fuels
= DeNOx agent AdBlue n
for exhaust gas aser-
treatment
= lubricants
= coolant
= Brake Ouid
= windscreen washer Ouid
= climate control system refrigerant
Only use products approved by Mercedes-Benz.
Damage caused by the use of products that have
not been approved is not covered by the
Mercedes-Benz warranty or goodwill gestures.
The operating Ouids approved by Mercedes-Benz
can be identiNed by the following inscriptions on
the container:
= MB-Freigabe (e.g. MB-Freigabe 229.51)
= MB-Approval (e.g. MB-Approval 229.51) 404
Technical data

Further information on approved operating
Ouids:
= in t
he Mercedes-Benz SpeciNcations for Oper-
ating Fluids by entering the designation
- at https://bevo.mercedes-benz.com
- in the Mercedes-Benz BeVo App
= At a qualiNed specialist workshop &
WARNING Risk of Nr
e or explosion from
fuel
Fuels are highly Oammable. 
Fire, naked Oames, smoking and cr
eating
sparks must be avoided. 
Before and during refuelling, switch oM
t
he vehicle and, if Ntted, the stationary
heater. &
WARNING Risk of injur
y from fuels
Fuels are poisonous and hazardous to your
healt
h. 
Do not swallow fuel or let it come into
cont

act with skin, eyes or clothing. 
Do not inhale fuel vapour. 
Keep children away from fuel. 
Keep doors and windows closed during
t

he refuelling process.
If you or other people come into contact with
fuel, obser
ve the following: 
Immediately rinse fuel oM y
our skin with
soap and water. 
If fuel comes into contact with your eyes,
immediat
ely rinse them thoroughly with
clean water. Seek medical attention
immediately. 
If you swallow fuel, seek medical atten-
tion immediat

ely. Do not induce vomit-
ing. 
Change immediately out of clothing that
has come int
o contact with fuel. Flexible-fuel vehicles can be refuelled with the fol-
lo

wing fuel types:
= unleaded petrol
= E85 fuel =
a mixtur
e of E85 fuel and unleaded petrol
Flexible-fuel vehicles can be identiNed by the
Ethanol up to E85 sticker on the inside of the fuel
Nller Oap.
Depending on the country, the fuels you can use
in your vehicle may diMer from the information in
the Owner's Manual. The fuels that have been
approved for your vehicle can be found on the
instruction label on the inside of the fuel Nller Oap. Fuel
Information on fuel quality for vehicles with petrol
engines
N

ote the instructions about operating Ouids
( page 404).
* NOTE Damag
e caused by the wrong fuel Even small amounts of the wrong fuel could
r

esult in damage to the fuel system, the
engine and the emission control system. 
Only refuel using unleaded, sulphur-free
spar
k-ignition engine fuel that conforms Technical data
405

to European EN 228, or an equivalent
speciNcation.
Fuel of this speciNcation ma y contain up to
10% ethanol by volume. Your vehicle is suita-
ble for use with E10 fuel. 
See the information label in fuel Nller Oap
f
or other compatible fuels .
Never refuel with one of the following fuels: = Diesel
= R

egular petrol with an octane number
lower than 91 RON
= Petrol with more than 3% methanol by vol-
ume, e.g. M15, M30
= Petrol with additives containing metal
If you have accidentally refuelled with the
wrong fuel: 
Do not switch on the vehicle. 
Consult a q
ualiNed specialist workshop.The following compatibility indications for fuel
appl

y to your vehicle: 1
For petrol with a maximum of 5% ethanol by
v
olume
2 For petrol with a maximum of 10% ethanol by
v
olume
The compatibility indications for fuel on the vehi-
cle accor
ding to European standard EN 16942
can be found on the information label on the fuel
Nller Oap or on the fuel dispenser or pump nozzle
suitable for your vehicle throughout Europe.
If the available fuel is not suPciently low in sul-
phur, it may produce unpleasant odours.
The recommended octane number for your vehi-
cle can be found on the information label on the
fuel Nller Oap. If the recommended fuel is not available, you may
also t
emporarily use regular unleaded petrol with
an octane number of at least 91 RON. This may
reduce engine output and increase fuel consump-
tion.
Never refuel using petrol with an even lower RON.
Further information on fuel can be obtained at a
Nlling station or a qualiNed specialist workshop.
Information on additives in petrol (vehicles with
petrol engine)
Observe the notes on operating Ouids
( page 404).
* NOTE Damag
e from use of unsuitable
additives Even small amounts of the wrong additive may
lead t
o malfunctions occurring. 
Only add cleaning additives recommen-
ded b

y Mercedes-Benz to the fuel. Mercedes-Benz recommends that you use brand-
name fuels wit

h additives.406
Technical data

In some countries, the fuel available may not have
suPcient
additiv
es. Deposits could build up in the
fuel injection system as a result. In this case, in
consultation with a Mercedes-Benz service
centre, mix the fuel with the cleaning additive rec-
ommended by Mercedes-Benz. Observe the notes
and mixing ratios indicated on the tank.
Information on fuel quality for vehicles with a die-
sel engine
General notes
Observe the notes on operating Ouids
(  page 404). &
WARNING Risk of Nr
e from fuel mixture
If you mix diesel fuel with petrol, the Oash
point of t
he fuel mixture is lower than that of
pure diesel fuel. 
Never refuel using petrol in diesel
engines. 
Never mix petrol with diesel fuel. *
NOTE Damag
e caused by the wrong fuel Even small amounts of the wrong fuel could
r

esult in damage to the fuel system, the
engine and the emission control system.
Vehicles with a diesel particulate Nlter: 
Only refuel using sulphur-free diesel fuel
t

hat conforms to European standard
EN 590, or an equivalent speciNcation.
In countries without sulphur-free diesel
fuel, refuel using only low-sulphur diesel
fuel with a sulphur content less than
50 ppm.
Vehicle without diesel particulate Nlt
er: 
Only refuel using diesel fuel with a sul-
phur cont

ent less than 500 ppm.
Never refuel with one of the following fuels: = P

etrol
= Marine diesel
= Heating oil =
Pur
e fatty acid methyl ester or vegetable
oil
= ParaPn or kerosene
If you have accidentally refuelled with the
wrong fuel: 
Do not switch on the vehicle. 
Consult a q
ualiNed specialist workshop. The following compatibility indications for fuel
appl

y to your vehicle: Technical data
407