2021 MERCEDES-BENZ A-CLASS SALOON door lock

Indicator lamp
10ashes when theATA system is
primed.
The ATA system is deacti vated automatically in the
fo llowing situations:
R aTer unlocking theve hicle with thekey
R aTer unlocking theve hicle using KEYLESS-GO
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 160)
% When the Mercedes‑Benz emer gency call sys-
te m is active and the alarm st ays on for more
th an 30 seconds, a message is automatically
sent tothe Customer Assistance Centre
(/ page 314).
Deactiv Deactiv ating t
ating theATA
he ATA #
Press theÜ, ßorp button on the
key.
or #
Press the start/s top button with theke y in the
st ow age compartment (/ page 160) Deactiv
Deactiv
ating t
ating the alar
he alar m using KEYLESS-GO
m using KEYLESS-GO #
Grasp the outside door handle with thekey
outside theve hicle. F
F
unction of tow
unction of tow-awa
-a wa y pr ot
y pr otection
ection An audible and visual alarm is triggered if an alter-
ation
toyour vehicle's angle of inclination is
de tected while tow- awa y protection is primed.
To w- awa y protection is automatically primed aTer
appr oximately 60 seconds:
R aTer locking theve hicle with thekey
R aTer locking theve hicle using KEYLESS-GO
To w- awa y protection is only primed when thefo l-
lowing components are closed:
R doors
R boot lid
To w- awa y protection is automatically deactivated:
R aTer pressing theÜ orp button on the
key R
aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 160)
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 212). 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. 102
102
Opening and closing

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 boot lid
Interior pr otection is automatically deactivated:
R aTer pressing theÜ orp button on the
key
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 160)
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. Opening and closing
103 103

Yo
u can stop the adjustment process bypressing
one of the memory function position switches. &
W
WARNING
ARNING Risk of becoming trapped if
ch ildren activate the easy entry and exit
fe ature‑
Child ren could become trapped if they acti-
va te the easy entry‑ and exitfeature, particu-
lar lywhen unat tended. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. When
the easy entry and exitfeature is active, the
driver's seat will mo vebackwards and the bac k-
re st will be mo vedto a steeper position when:
R You switch the ignition o. when the driver's
door is open
R You open the driver's door when the ignition is
switched o. %
The driver's seat will then mo vebackwards
only if it is not already at there ar of the seat
adjustment range.
The seat backrest will then mo ve forwards
only if it is not already at the front of the bac k-
re st adjustment range.
The driver's seat will mo veback tothe last drive
position when:
R You switch the ignition on with the driver's
door closed.
R You close the driver's door when the ignition is
switched on
The last drive position will be sa ved when:
R You switch the ignition o..
R You call up the seat settings via the memory
function.
R You sa vethe seat settings via the memory
function. Se
Se
tting t
tting t he easy entr
he easy entr y and e
y and exit f
xit feature
eature Multimedia system:
4 © 5
Settings 5
Vehicle
5 Automatic seat adjustment
5 Easy Entry/Exit #
Activate or deactivate the function. Memor
Memor
y function
y function F
F
unction of t
unction of t he memor
he memory function
y function &
W
WARNING
ARNING Risk of an accident if the mem-
ory function is used while driving
If yo u use the memory function on the driver's
side while driving, you could lose control of
th eve hicle as a result of the adjustments
being made. #
Only use the memory function on the
driver's side when theve hicle is station-
ar y. 116
116
Seats and st
owing

#
Press release tab1 inthe direction of the
ar ro w and pull it out. #
Pull high- voltage disconnect device 2inthe
direction of the ar row until it engages.
The high- voltage on-board electrical system is
switched o..
All workon thehy brid drive system (including
aTer disconnecting the high-voltage on-board
electrical system manually) may only be car ried
out byaqu ali/ed specialist workshop. Switc
Switc
hing on t
hing on t he pow
he power suppl
er suppl y or t
y or the v
he vehicle
ehicle &
W
WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c. R
operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. R
R
eq
eq uir
uir ements:
ements:
R The key is in theve hicle and is recognised.
R V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: The
brake pedal is not depressed.
R V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: The clutch
pedal is not depressed. #
T To switc o switc h on t
h on the pow
he pow er supply
er supply :
:press button
1 once.
Yo u can, forex ample, activate the windscreen
wiper.
The po wer supply is switched o. again if thefo l-
lowing conditions are met:
R You open the driver's door.
R you press button 1twice more. Driving and parking
159
159

Ensure
thefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
S
S t
tar
ar ting t
ting t he v
he vehicle (R
ehicle (R emot
emot e Online)
e Online) &
W
WARNING
ARNING Risk of crushing or entrapment
due tounintentional starting of the engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during service
or maintenance work. #
Always secure the engine against unin-
te ntional starting before ca rrying out
main tenance or repair work. R
R
eq
eq uir
uir ements:
ements:
R Park position jis selected.
R The anti-theT alarm system is not activated.
R The hazard warning light system is switched
o.. R
The bonnet is closed.
R The doors are 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 vehicle 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 w or
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). 162
162
Driving and parking

#
Eng
Eng aging rev
aging rever
erse g
se g ear
ear k:
:
R Depress the clutch pedal comple tely.
R Pull thege arshiT le ver up, push it tothe
leT and then pull it bac k. Gear
Gear
shiT
shiT r
recommendation
ecommendation The
gearshiT recommendation assists you in
adopting an economical driving style. #
When gearshiT recommendation 1appears
on the inst rument displa y,shiT tothere com-
mended gear. A
A
ut
ut omatic tr
omatic tr ansmission
ansmission DIRECT SELECT lev
DIRECT SELECT lev
er
er F
F
unction of t
unction of t he DIRECT SELECT lev
he DIRECT SELECT lev er
er &
W
WARNING
ARNING Risk of accident due toincor-
re ct gearshiTing
If th e engine speed is higher than the idle
speed and you engage the transmission posi-
tion hork, theve hicle may accelerate
sharpl y. #
Ifyo u engage the transmission position
h ork when theve hicle is at a stand-
still, alw ays depress the brake pedal
/rmly and do not accelerate at the same
time. &
W
WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. Driving and parking
177
177

#
apply the parking brake. #
Vehicles with automatic transmission:
shiT the transmission toposition j. #
Vehicles with manual transmission:
engage /r st1 orreve rsege ar k. &
W
WARNING
ARNING Risk of /re caused byhot
ex haust system parts
Flammable materials such as lea ves, grass or
twigs may ignite. #
Park theve hicle so that no 0ammable
material can come into contact with hot
ve hicle components. #
In particular, do not park on dry grass-
land or har vested grain /elds. &
W
WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
N
NOOTE
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. 206
206
Driving and parking

#
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 1orreve rsege ar k. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: Engage
transmission position jin a stationary vehi-
cle with the brake pedal applied
(/ page 178). #
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. #
Always make sure that nobody is within
th era nge of thega rage door's mo ve-
ment. Before prog
ramming thega rage door opener, park
th eve hicle outside thega rage . Make sure that the
ve hicle is switched on but not star ted.
R
R eq eq uir
uir ements:
ements:
R The vehicle has been par ked outside the
gar age or outside thera nge of mo vement of
th e door.
R The vehicle is switched on.
R The vehicle has not been star ted.
% The garage door opener function is alw ays
av ailable when theve hicle is switched on. Driving and parking
207
207