MERCEDES-BENZ A-CLASS HATCHBACK 2022 Owners Manual

Doors
Notes on the additional door lock
The additional door lock is only available for vehi-
cles f or the United Kingdom. &
WARNING Risk of injur
y to persons inside
the vehicle when the additional door lock
is activated
If the additional door lock is activated, the
door
s can no longer be opened from the
inside. 
Never leave persons, in particular chil-
dr

en, unattended in the vehicle. 
If there are persons in the vehicle, do not
activ
ate the additional door lock. The additional door lock is automatically activated
in t

he following situations:
= The vehicle is locked using the key.
= The vehicle is locked using KEYLESS-GO. If the vehicle has been locked via Mercedes me
connect, t
he additional door lock is not activated
(  page 320).
If the additional door lock is activated, the doors
cannot be opened from the inside.
% Aser loc
king you can issue a signal with the
horn.
You can prevent the additional door lock from
being activ
ated by deactivating interior protection
before locking the vehicle ( page 103). Unlocking/opening the doors from the inside

United Kingdom only: obser
ve the notes on
the additional door lock ( page 88). 
Pull door handle 1.88
Opening and closing

Centrally locking and unlocking the vehicle from
t he inside 
To unlock: pr
ess 1 button. 
To lock: pr
ess button 2.
The red indicator lamp on button 2 lights up
once the vehicle is locked.
This does not lock or unlock the fuel Nller Oap.Plug-in hybrid: t

he socket Oap is also locked and
unlocked. The socket Oap can be opened even if a
key is detected in the car.
The vehicle is not unlocked:
= if you have locked the vehicle using the key
= if you have locked the vehicle using KEYLESS-
GO Locking/unlocking the vehicle with KEYLESS-GO
Requirements:
= The k

ey is outside the vehicle.
= The distance between the key and the vehicle
does not exceed 1 m.
= The driver's door and the door on which the
door handle is used are closed.
* NOTE V
ehicle damage due to uninten-
tional opening of the tailgate =
when using an aut
omatic car wash
= when using a high pressure cleaner 
Deactivate the function of the key in
t

hese situations.
or 
Make sure that the key is at a minimum
dis

tance of 3 m away from the vehicle. Observe the notes:
= on w

ashing the vehicle in a car wash
(  page 344)
= on using a high pressure cleaner
( page 346) Opening and closing
89


To unlock the vehicle: t ouch the inner surface
of the door handle. 
To lock the vehicle: t
ouch sensor surface 1
or 2. 
Convenience closing: t
ouch recessed sensor
surface 2 until the closing process has been
completed. %
Further information on convenience closing
(  pag

e 96).
If you open the tailgate from outside, it is auto-
maticall
y unlocked. Problems with KEYLESS-GO, troubleshooting
You can no longer lock or unlock the vehicle using
KEYLESS-GO
P

ossible causes:
= The function of the key has been deactivated.
= The key battery is weak or discharged. 
Activate the function of the key ( pag
e 85). 
Check the battery using the indicator lamp
( pag

e 84). 
Replace the key battery, if necessary
( pag
e 86). 
Use the replacement key. 
Use the emergency key to lock or unlock
( pag

e 91). 
Have the vehicle and key checked at a quali-
Ned specialis

t workshop. There is interference from a powerful radio signal
sour

ce
Possible causes if the function of KEYLESS-GO is
impaired:
= high voltage power lines
= mobile phones
= electronic devices (notebooks, tablets)
= shielding due to metal objects or induction
loops for electrical gate systems or automatic
barriers 
Make sure that there is suPcient dis
tance
between the key and the potential source of
interference. Activating/deactivating the automatic locking fea-
tur
e The vehicle is locked automatically when the vehi-
cle is switc

hed on and the wheels are turning
faster than walking pace. 90
Opening and closing


To activate: pr ess and hold button 2 for
approximately Nve seconds until an acoustic
signal sounds. 
To deactivate: pr
ess and hold button 1 for
approximately Nve seconds until an acoustic
signal sounds.
The red indicator lamp on button 2 lights up
once t
he vehicle is locked. In the following situations, there is a danger of
being loc

ked out when the function is activated:
= while the vehicle is being tow-started or
pushed
= if the vehicle is being tested on a roller dyna-
mometer Locking/unlocking the vehicle with the emer-
g

ency key Locking/unlocking the driver's door with the
emer

gency key
% If you wish to lock the vehicle entirely using
t
he emergency key, Nrst press the button for
locking from the inside while the driver's door
is open. Then proceed to lock the driver's
door using the emergency key. 
Remove the emergency key (  pag
e 86). 
Insert the emergency key as far as it will go
int
o opening 1 in the cover. 
Pull and hold the door handle. 
Pull the cover on the emergency key as
s

traight as possible away from the vehicle until
it releases. 
Release the door handle. Opening and closing
91


To unlock: tur n the emergency key anti-clock-
wise to position 1.
To lock: tur
n the emergency key clockwise to
position 1. 
Carefully press the cover onto the lock cylin-
der until it eng

ages and is seated Nrmly.Locking the front passenger door and rear doors

Insert a suitable object, e.g. the emergency
k
ey, into opening 1 on the door lock. 
To lock the les-hand side of t
he vehicle: turn
the emergency key anti-clockwise as far as it
will go. 
To lock the right-hand side of the vehicle: tur
n
the emergency key clockwise as far as it will
go.
If the locked door is then closed, it can no longer
be opened fr
om the outside. Load compartment
Opening the tailgate
&
DANGER Risk of poisoning fr
om exhaust
gases
Combustion engines emit poisonous exhaust
g
ases, such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the tail-
gate is open when the engine is running, espe-
cially if the vehicle is in motion. 
Always switch oM t
he engine before
opening the tailgate. 
Never drive with the tailgate open. 92
Opening and closing

*
NOTE Damag e to the tailgate caused by
obstacles above the vehicle The tailgate swings rearwards and upwards
when it is opened.

Make sure that there is suPcient space
behind and abo
ve the tailgate. 
Pull the tailgate handle. Closing the tailgate
&
WARNING Risk of injur
y from unsecured
items in the vehicle
If objects, luggage or loads are not secured or
no
t secured suPciently, they could slip, tip
over or be thrown around and thereby hit vehi-
cle occupants.
There is a risk of injury, particularly in the
event of sudden braking or a sudden change
in direction. 
Always stow objects in such a way that
t

hey cannot be thrown around. 
Before the journey, secure objects, lug-
g

age or loads against slipping or tipping
over. Observe the notes on loading the vehicle.
Notes on closing the tailgate:
y
our vehicle is
equipped with automatic key recognition. If a key
belonging to the vehicle is detected in the vehicle,
the tailgate will not be locked.
Note that the tailgate will not be locked in the fol-
lowing situation:
= You have locked the vehicle and close the tail-
gate while a key belonging to the vehicle is
inside the vehicle.
and
= A second key belonging to the vehicle is not
detected outside the vehicle.
Automatic key recognition is only an aid and is not
a substitute for your attentiveness. 
Before locking, ensure that at least one key
belonging t

o the vehicle is outside the vehicle. 
To close the tailgate: pull t
he tailgate down-
wards with the handle and let it drop into the
lock. Unlocking the tailgate with the emergency key
Requirements:
= The r

ear seat backrest has been folded
forward.
= The load compartment cover has been
removed. Opening and closing
93


Remove the emergency key (  pag e 86).
Insert emergency key 2 int
o opening 1 in
the trim and push it in.
The tailgate will be unlocked. Side windows
Opening and closing the side windows
&
WARNING Risk of becoming tr
apped when
opening a side window
When you open a side window, parts of the
body could be dr
awn in or become trapped
between the side window and window frame. 
When opening, make sure that nobody is
t
ouching the side window. 
If someone is trapped, release the but-
t
on immediately or pull it in order to
close the side window again. &
WARNING Risk of becoming tr
apped when
closing a side window
When closing a side window, body parts could
be tr
apped in the closing area in the process. 
When closing, make sure that no body
par

ts are in the closing area. 
If someone is trapped, release the but-
t
on immediately or press the button in
order to reopen the side window. &
WARNING Risk of becoming tr
apped when
children operate the side windows
Children could become trapped if they operate
t
he side windows, particularly when unatten-
ded. 
Activate the child safety lock for the rear
side windo
ws. 
When leaving the vehicle, always take the
k
ey with you and lock the vehicle. 
Never leave children unattended in the
v
ehicle. Requirements:
= The po

wer supply or the vehicle has been
switched on. 94
Opening and closing

1
Closing
2 Open
The buttons on the driver's door take precedence. 
To start automatic operation: pr ess the b
button beyond the point of resistance or pull
and release it. 
To interrupt automatic operation: pr
ess or pull
the b button again. When the vehicle is switched
oM, y
ou can con-
tinue to operate the side windows.
This function is available for around four minutes
or until a front door is opened.
Automatic reversing function of the side windows
If an obstacle impedes a side window during the
closing process, the side window will open again
automatically. The automatic reversing function is
only an aid and is not a substitute for your atten-
tiveness. 
During the closing process, make sure that no
body par
ts are in the closing area. &
WARNING Risk of becoming tr
apped
despite there being reversing protection
on the side window
The reversing function does not react: = t

o sos, light and thin objects, e.g. Nngers.
= during resetting.
The reversing function cannot prevent some-
one from becoming trapped in these situa-
tions. 
During the closing process, make sure
t
hat no body parts are in the closing
area. 
If someone becomes trapped, press the
b butt

on to open the side window
again. Automatic function of the side windows
In the following cases, the side windows will be
closed aut

omatically when the vehicle is switched
oM:
= if it starts to rain
Rain is detected by a rain sensor on the wind-
screen.
= in extreme temperatures
= aser a certain time (depending on the on-
board electrical system voltage)
= if there is a malfunction in the power supply
The side windows will be closed as far as the ven-
tilation position. Opening and closing
95

Vehicles with a panorama sliding sunroof:
t he side
windows will be closed completely if the sliding
sunroof is open.
If the side windows are obstructed during auto-
matic closing, the side window concerned will
open again slightly. Aser another automatic clos-
ing process, the automatic function may be deac-
tivated. Aser about ten seconds, the automatic
function is active again. Convenience opening (ventilating the vehicle
bef

ore starting a journey) &
WARNING Risk of entr
apment when open-
ing a side window
When opening a side window, parts of the
body could be dr
awn in or become trapped
between the side window and window frame. 
When opening, make sure that nobody is
t
ouching the side window. 
Release the button immediately if some-
body becomes tr

apped. Requirements:
= The k

ey is in the immediate vicinity of the vehi-
cle. 
Press and hold the Ü butt
on on the key.
The following functions are performed:
= The vehicle is unlocked.
= The side windows are opened.
= The panoramic sliding roof is opened.
= The seat ventilation of the driver's seat is
switched on.
% If the roller sunblind of the panoramic sliding
sunr

oof is closed, the roller sunblind is
opened Nrst. 
To interrupt convenience opening: r
elease
Ü the button. 
To continue convenience opening: pr
ess and
hold the Ü button again. Convenience closing (closing the vehicle from out-
side)
&
WARNING Risk of entr
apment due to not
paying attention during convenience clos-
ing
When the convenience closing feature is oper-
ating, par
ts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. 
When the convenience closing feature is
oper
ating, monitor the entire closing
process and make sure that no body
parts are in the closing area. Requirements:
= The k

ey is in the immediate vicinity of the vehi-
cle. 
Press and hold the ß butt
on on the key.
The following functions are performed:
= The vehicle is locked.
= The side windows are closed.
= The panoramic sliding roof is closed. 96
Opening and closing


To interrupt convenience closing: r elease the
ß button. 
To continue convenience closing: pr
ess and
hold the ß button again.
% Convenience closing also functions with KEY-
LESS-GO
( page 89). Resolving problems with the side windows
&
WARNING Risk of becoming tr
apped or
fatally injured if reversing protection is not
activated
If you close a side window again immediately
aser it has been bloc

ked, the side window will
close with increased or maximum force. The
reversing function is then not active and body
parts may become trapped. 
Make sure that no parts of the body are
in t

he closing area. 
To stop the closing process, release the
butt

on or press the button again to
reopen the side window. A side window cannot be closed and you cannot
see t
he cause. 
Check to see whether any objects are in the
windo

w guide. 
Adjust the side windows.
Adjusting the side windows
If a side windo
w is obstructed during closing and
reopens again immediately: 
Immediately aser t
his, pull and hold the corre-
sponding button again until the side window
has closed and hold the button for at least one
more second (re-adjustment).
The side window will be closed without the
automatic reversing function.
If the side window is obstructed again and
r
eopens again immediately: 
Immediately aser t
his, pull and hold the corre-
sponding button again until the side window
has closed and hold the button for at least one
more second (follow-up adjustment).
The side window will be closed without the
automatic reversing function. The side windows cannot be opened or closed
using t

he convenience opening feature.
Possible causes: = The key battery is weak or discharged. 
Check the battery using the indicator lamp
( pag

e 84). 
Replace the key battery, if necessary
( pag
e 86). Sliding sunroof
Opening and closing the sliding sunroof
%
The term "sliding sunroof" also refers to the
panor

ama sliding sunroof. &
WARNING Risk of becoming tr
apped when
the sliding sunroof is being opened and
closed
Body parts may become trapped in the range
of mo
vement. Opening and closing
97