MERCEDES-BENZ A-CLASS HATCHBACK 2022 Owners Manual


To switch on the vehicle: pr ess button 1
twice.
Indicator and warning lamps light up on the
instrument cluster.
The vehicle is switched oM ag
ain if one of the fol-
lowing conditions is met:
= Vehicles with automatic transmission: You do
not start the vehicle within 15 minutes and the
transmission is in position j or the electric
parking brake is applied.
= Vehicles with manual transmission: You do not
start the vehicle within 15 minutes and the
electric parking brake is applied.
= You press button 1 once.Starting the vehicle
Starting the vehicle with the start/stop button
&
DANGER Risk of f
atal injuries due to
exhaust gases
Combustion engines emit poisonous exhaust
g
ases such as carbon monoxide. Breathing in these exhaust gases is hazardous to health
and r

esults in poisoning. 
Never leave the engine and, if present,
t

he stationary heater, running in an
enclosed space without suPcient venti-
lation. &
WARNING Risk of Nr
e due to Oammable
material in the engine compartment or the
exhaust system
Flammable materials may ignite. 
Therefore, check regularly that there are
no Oammable mat

erials in the engine
compartment or on the exhaust system. Requirements:
= The k

ey is in the vehicle and is recognised. 
Vehicles with manual transmission: Depr
ess
the clutch pedal. 
Vehicles with automatic transmission: Shis
t
he transmission to position j or i. 
Depress the brake pedal and press button 1
once. 
If the vehicle does not start: switch oM non-
essential consumer
s and press button 1
once. 
If the vehicle still does not start and the Place
the key in the marked space See Owner's
Manual displa

y message appears on the
instrument display: start the vehicle with the
key in the marked space (emergency opera-
tion mode) ( page 169).
% You can switch oM t
he vehicle while driving. To
do this, press button 1 for about three sec-
onds or press button 1 three times within
three seconds. Be sure to observe the safety
notes concerning this under "Driving tips"
(  page 171).
Observe any information regarding display mes-
sag
es that can be displayed on the instrument
display. 168
Driving and parking

Starting the vehicle with the key in the stowage
com partment (emergency operation mode)
If the vehicle does not start and the Place the
key in the marked space See Owner's Manual
message appears in the instrument display, you
can start the vehicle in emergency operation
mode. Marked space (example with cup holder without
co

ver) 
Open the cover of marked space 2 if neces-
sar
y. 
Make sure that marked space 2 is em
pty. 
Remove key 1 fr
om the key ring. 
Place key 1 in mar
ked space 2 on symbol
3.
The vehicle will start aser a short time.
If you remove key 1 from marked space 2,
the vehicle can still be driven. For further
engine starts however, key 1 must be loca-
ted in marked space 2 on symbol 3 during
the entire journey. 
Have key 1 c
hecked at a qualiNed specialist
workshop.
If the vehicle does not start: 
Place key 1 in mar
ked space 2 and leave it
there. 
Vehicles with manual transmission: Depr
ess
the clutch pedal. 
Depress the brake pedal and start the vehicle
using t
he start/stop button. %
You can switch on the power supply or the
v

ehicle with the start/stop button.
Observe any information regarding display mes-
sag
es that can be displayed on the instrument
display. Starting the vehicle via Remote Online Services
Cooling or heating the vehicle interior before
s

tarting the journey
Ensure the following before starting the engine:
= The legal stipulations in the area where your
vehicle is parked allow engine starting via
smartphone.
= It is safe to start and run the engine where
your vehicle is parked.
= The fuel tank is suPciently full.
= The starter battery is suPciently charged.
Charging the starter battery before starting the
journey
You can receive a message on your smartphone
when the state of charge of the starter battery is
low. You can then start the vehicle with the smart- Driving and parking
169

phone to charge the battery. The vehicle is auto-
maticall y switched oM aser ten minutes.
Ensure the following before starting the engine:
= The legal stipulations in the area where your
vehicle is parked allow engine starting via
smartphone.
= It is safe to start and run the engine where
your vehicle is parked.
= The fuel tank is suPciently full.
Starting the vehicle (Remote Online) &
WARNING Risk of cr
ushing or entrapment
due to unintentional starting of the engine
Limbs could be crushed or trapped if the
engine is s
tarted unintentionally during service
or maintenance work. 
Always secure the engine against unin-
t

entional starting before carrying out
maintenance or repair work. Requirements:
= P

ark position j is selected.
= The anti-thes alarm system is not activated. =
The hazar
d warning light system is switched
oM.
= The bonnet is closed.
= The doors are closed and locked.
= The windows and sliding sunroof are closed. 
Start the vehicle using the smartphone.
Aser e

very engine start, the engine runs for
ten minutes.
You can carry out a maximum of two consecutive
s
tarting attempts. You must start the engine with
the key before trying to start the vehicle again
with the smartphone.
You can switch oM the vehicle at any time as fol-
lows:
= Via the Smartphone App
= By pressing the Ü or ß button on the
key
% Further information can be found in the
smar
tphone app. Securing the vehicle against starting before carry-
ing out maint

enance or repair work: 
Switch on the hazard warning light system.
or 
Unlock the doors.
or 
Open a side window or the sliding sunroof. Running-in notes
To preserve the engine during the Nr

st 1,500 km:
= Drive at varying road speeds and engine
speeds.
= Do not drive at speeds greater than
140 km/h.
= Drive the vehicle in driving mode A
or .
= Shis to the next highest gear at the very latest
when the needle reaches the last third before
the red area in the rev counter.
= Do not shis down manually in order to brake.
= Avoid overstraining the vehicle, e.g. driving at
full throttle. 170
Driving and parking

=
V ehicles with automatic transmission: do not
depress the accelerator pedal beyond the
pressure point (kickdown).
= Only increase the engine speed gradually and
accelerate the vehicle to full speed aser
1,500 km.
This also applies when the engine or parts of the
drivetrain have been replaced.
Please also observe the following running-in
notes:
= In certain driving and driving safety systems,
the sensors adjust automatically while a cer-
tain distance is being driven aser the vehicle
has been delivered or aser repairs. Full sys-
tem eMectiveness is not reached until the end
of this teach-in process.
= Brake pads, brake discs and tyres that are
either new or have been replaced only achieve
optimum braking eMect and grip aser several
hundred kilometres of driving. Compensate for
the reduced braking eMect by applying greater
force to the brake pedal. Notes on driving
&
WARNING Risk of accident due t
o objects
in the driver's footwell
Objects in the driver's footwell may impede
pedal tr
avel or block a depressed pedal.
This jeopardises the operating and road safety
of the vehicle. 
Stow all objects in the vehicle securely
so t
hat they cannot get into the driver's
footwell. 
Always Nt t
he Ooor mats securely and as
prescribed in order to ensure that there
is always suPcient room for the pedals. 
Do not use loose Ooor mats and do no
t
place Ooor mats on top of one another. &
WARNING Risk of accident due t
o incor-
rect footwear
Incorrect footwear includes, for example: = shoes wit

h platform soles =
shoes wit
h high heels
= slippers
There is a risk of an accident. 
Always wear suitable footwear so that
y

ou can operate the pedals safely. &
WARNING Risk of accident if t
he vehicle is
switched oM while driving
If you switch oM t
he vehicle while driving,
safety functions are restricted or no longer
available.
This may aMect the power steering system and
the brake force boosting, for example.
You will need to use considerably more force
to steer and brake, for example. 
Do not switch oM t
he vehicle while driv-
ing. Driving and parking
171

&
DANGER Risk of f atal injuries due to
exhaust gases
Combustion engines emit poisonous exhaust
g
ases such as carbon monoxide. Breathing in
these exhaust gases is hazardous to health
and results in poisoning. 
Never leave the engine and, if present,
t

he stationary heater, running in an
enclosed space without suPcient venti-
lation. &
WARNING Risk of skidding and of an acci-
dent due t
o shising down on slippery road
surfaces
If you shis do
wn on slippery road surfaces to
increase the engine braking eMect, the drive
wheels may lose traction. 
Do not shis do
wn on slippery road surfa-
ces to increase the engine braking
eMect. &
DANGER Risk of f
atal injury due to poison-
ous exhaust gases
If the tailpipe is blocked or suPcient v
entila-
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter the vehi-
cle. This is the case, for example, if the vehicle
gets stuck in the snow. 
Keep the tailpipe and the area around
t

he vehicle free from snow when the
engine or the stationary heater is run-
ning. 
Open a window on the side of the vehicle
f

acing away from the wind to ensure an
adequate supply of fresh air. &
WARNING Risk of accident due t
o the
brake system overheating
If you leave your foot on the brake pedal when
dr
iving, the brake system may overheat.
This increases the braking distance and the
brake system can even fail. 
Never use the brake pedal as a footrest. 
Do not depress the brake pedal and the
acceler
ator pedal at the same time while
driving. *
NOTE Engine damag
e due to excessively
high engine speeds The engine will be damaged if you drive with
t

he engine in the overrevving range. 
Do not drive with the engine in the over-
r
evving range. *
NOTE Causing w
ear to the brake linings by
permanently depressing the brake pedal 
Do not permanently depress the brake
pedal while dr

iving. 
To use braking eMect of t
he engine, shis
to a lower gear in good time. 172
Driving and parking

*
NOTE Damag e to the drivetrain and
engine when pulling away 
Do not warm up the engine while the
v

ehicle is stationary. Pull away immedi-
ately. 
Avoid high engine speeds and driving at
full t

hrottle until the engine has reached
its operating temperature. *
NOTE Damag
e to the catalytic converter
due to non-combusted fuel The engine is not running smoothly and is mis-
Nr

ing.
Non-combusted fuel may get into the catalytic
converter. 
Only depress the accelerator pedal
slightl

y. 
Have the cause r
ectiNed immediately at
a qualiNed specialist workshop. *
NOTE R
educed battery life due to frequent
short-distance trips The 12 V battery may not be
suPcientl
y
charged when the vehicle is used only for
short-distance trips. This reduces the life of
the battery. 
Drive longer distances regularly to
c

harge the battery. *
NOTE Damag
e to the vehicle due to not
observing the maximum permitted head-
room clearance If the vehicle height is greater than the maxi-
mum per
mitted headroom clearance, the roof
and other parts of the vehicle may be dam-
aged. 
Observe the signposted headroom clear-
ance. 
If the vehicle height is greater than the
per
mitted headroom clearance, do not
enter. 
Observe the changed vehicle height with
add-on r
oof equipment. Notes on driving with a roof load, trailer or fully
laden v
ehicle
When driving with a loaded roof luggage rack or
trailer as well as with a fully laden or fully occu-
pied vehicle, the vehicle's driving and steering
characteristics change.
You should bear the following in mind:
= Do not exceed the permissible roof load and
towing capacity. Also observe the technical
data in the printed Owner's Manual.
= Evenly distribute the roof load, and place
heavy objects at the bottom. Also comply with
the notes on loading the vehicle
( page 118).
= Drive attentively, and avoid suddenly pulling
away, braking and steering as well as rapid
cornering.
Notes on driving on salt-treated roads
The braking eMect is limited on salt-treated roads. Driving and parking
173

Therefore, observe the following notes:
= due t
o salt build-up on the brake disks and
brakepads, the braking distance can increase
considerably or result in braking only on one
side
= maintain a much greater safe distance to the
vehicle in front
To remove salt build-up:
= brake occasionally while paying attention to
the traPc conditions
= carefully depress the brake pedal at the end of
the journey and when starting the next jour-
ney
Notes on aquaplaning
Aquaplaning can take place once a certain
amount of water has accumulated on the road
surface.
Observe the following notes during heavy precipi-
tation or in conditions in which aquaplaning may
occur:
= reduce speed
= avoid tyre ruts =
a void sudden steering movements
= brake carefully
% Also observe the notes on regularly checking
wheels and tyr

es ( page 374).
Notes on driving through water on the road sur-
f
ace
Water which has entered into the vehicle can
damage the engine, electrics and transmission.
Water can also enter the air intake of the engine
and cause engine damage.
Observe the following if you must drive through
water:
= The water, when calm, may only reach the
lower edge of the vehicle body.
= Drive at a maximum speed of 10 km/h; water
can otherwise enter the vehicle interior or
engine compartment.
= Vehicles travelling in front, or oncoming vehi-
cles, can create waves which may exceed the
maximum permissible depth of the water.
The braking eMect of the brakes is reduced aser
fording. Brake carefully while paying attention to the
tr
aPc conditions until braking power has been
fully restored. ECO start/stop function
ECO start/stop function
% The ECO start/stop function is not available
in all dr

ive programs, depending on the
engine. Observe the status display on the
instrument display concerning this.
If all vehicle conditions for an automatic engine
s
top are met, the engine will be switched oM auto-
matically:
= Vehicles with manual transmission: you brake
the vehicle, shis into neutral i when travel-
ling at a low speed and then release the clutch
pedal.
= Vehicles with automatic transmission: you
brake the vehicle to a standstill in transmis-
sion position h or i.
= You activate the HOLD function or engage
transmission position j.174
Driving and parking

%
If the system detects an intelligent stop inhibi-
t
or, e.g. a stop sign, the engine will not stop.
If you activate the HOLD function or engage
the park position j, the engine can be
switched oM in spite of an intelligent stop
inhibitor.
% In transmission position k, t
he engine will
not be switched oM automatically even when
the HOLD function is switched on.
The engine will restart automatically in the follow-
ing cases:
= V

ehicles with manual transmission: you
depress the clutch pedal.
= Vehicles with automatic transmission: you
engage transmission position h or k.
= You depress the accelerator pedal.
= The vehicle requires an automatic engine
start.
Status display on the instrument display: = The è symbol (green) appears when the
vehicle is at a standstill: the engine was
switched oM by the ECO start/stop function. =
The ç symbol (y

ellow) appears when the
vehicle is at a standstill: not all vehicle condi-
tions for an engine stop have been met.
= Neither the è symbol nor the ç symbol
appears when the vehicle is at a standstill: an
intelligent stop inhibitor, e.g. a stop sign, has
been detected
= The s symbol appears: the ECO start/stop
function is deactivated or there is a malfunc-
tion.
If the engine was switched oM by the ECO start/
stop function and you leave the vehicle, a warning
tone will sound and the engine will not be restar-
ted. In addition, a display message reading Vehi-
cle is operational Switch off ignition before exit-
ing will appear on the instrument display. If you do
not switch oM the vehicle, it will automatically be
switched oM aser three minutes. Switching the ECO start/stop function on/oM

Press button 1.
A displa

y will appear on the instrument cluster
when you switch the ECO start/stop function
on/oM.
% s will be continuousl
y shown on the
instrument cluster while the ECO start/stop
function is deactivated. Driving and parking
175

ECO display function
The ECO display summarises your driving charac-
t
eristics from the start of the journey to its com-
pletion and assists you in achieving the most eco-
nomical driving style.
You can inOuence consumption by doing the fol-
lowing:
= driving with particular care.
= Vehicles with automatic transmission: driving
in drive program .
= Vehicles with manual transmission: driving in
drive program A.
= following the gearshis recommendations. The lettering in the segment will light up brightly,
t
he outer edge will light up and the segment will
Nll up when the following driving style is adopted:
= 1 Steady speed
= 2 Gentle deceleration and rolling
= 3 Moderate acceleration
The lettering in the segment will be grey, the outer
edge will be dark and the segment will empty
when the following driving style is adopted:
= 1 Fluctuations in speed
= 2 Heavy braking
= 3 Sporty acceleration
The ECO display will show you when you have
driven economically:
= The three segments will Nll up completely at
the same time
= The edges around all three segments will light
up
The additional range achieved as a result of your
driving style in comparison with a driver with a
very sporty driving style will be shown in the centre of display
4. The r ange displayed does
not indicate a Nxed reduction in consumption. Regenerative brake system (plug-in hybrid)
Function of the regenerative brake system
Depending on t
he selected recuperation level, the
electric motor is operated as an alternator when
in overrun mode and during braking in order to
charge the high-voltage battery while driving. As
soon as you take your foot oM the accelerator
pedal when the vehicle is in motion and in trans-
mission position h, recuperation in overrun
mode is initiated.
The higher the recuperation, the more sharply the
vehicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
tery.
The deceleration in overrun mode may not be suf-
ficient depending on the driving conditions.
Decelerating to a standstill is not possible. Also
brake with the service brake if necessary. Always
adapt your speed to the driving conditions and
keep a suPcient distance. 176
Driving and parking

The recuperative brake system has the following
c
haracteristics:
= supports braking with electronically controlled
brake force boosting
= converts the kinetic energy of the vehicle into
electric energy
% If you brake hard, the mechanical brake is
also used. This means t
hat the maximum
recuperative energy cannot be recovered. The
more you drive and brake in an anticipatory
manner, the more ePciently energy can be
recuperated.
System limits
The br
aking eMect of the electric motor during
recuperation in overrun mode may be reduced or
may not be available at all in the following situa-
tions:
= when the high-voltage battery charge level
increases
= if the high-voltage battery is not yet at a nor-
mal operating temperature In these cases, the desired deceleration is set by
t

he brake control system.
Manually setting recuperative deceleration
% In the Î dr
ive program, you can use the
steering wheel gearshis paddles to manually
adjust the intensity of recuperation in overrun
mode. %
When the vehicle is started again or transmis-
sion position h is eng

aged again, the stand-
ard setting is automatically set. The following recuperation levels are available:
= hX Int

elligent, anticipatory recuperation
with ECO Assist (standard setting)
( page 178)
= hq No recuperation: the vehicle rolls freely
= h Normal recuperation
= hX Increased recuperation: strong deceler-
ation in overrun mode, e.g. for driving on
downhill gradients
= hXX Maximum recuperation: maximum
deceleration in overrun mode 
To increase recuperation: br
ieOy pull gearshis
paddle 1. 
To reduce recuperation: br
ieOy pull gearshis
paddle 2. 
Standard setting: pull and hold g
earshis pad-
dle 1 or 2 or engage transmission position
h again. Driving and parking
177