2021 MERCEDES-BENZ A-CLASS SALOON ECU

#
If necessar y,reset the driver's or front
passenger seat.
F
F olding bac
olding bac k t
k the r
he r ear seat bac
ear seat bac kr
krest
est &
W
WARNING
ARNING Risk of becoming trapped when
adjusting the seats
When you adjust a seat, you may trap yourself
or a vehicle occupant. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. *
N
NOOTE
TE Damage caused bytrapping the
seat belt when folding back the seat bac k-
re st The seat belt could become trapped and
thus
be damaged when the seat backrest is folded
bac k. #
Make sure that the seat belt is not trap-
ped when folding back the seat backrest. #
Movethe driver's or front passenger seat for-
wa rds, if necessar y. #
Foldthe cor responding seat backrest 1back
until it engages.
LeT LeT and r
and r ight seat bac
ight seat bac kr
kres
es ts:
ts: ifth e seat bac k-
re st is not engaged and lo cked in place, the
re d lock veri/cation indicator 2will be visi-
ble.
Centr Centr e seat bac
e seat bac kr
krest:
est: ifth e seat backrest is
not engaged and loc ked in place, there d lock
ve ri/cation indicator 3will be visible. Loc
Loc
king t
king t he r
he release catc
elease catc h of t
h of the centr
he centr e r
e rear seat
ear seat
bac
bac kr
krest
est
R
R eq
equir uir ements:
ements:
R The leT and centre seat backrests are
en gage d and joined toget her.
Yo u can lock the centre seat backrest release
catch if youwa nttosecure the boot against unau-
th orised access. The centre seat backrest can
th en be folded forw ards only toget her with the leT
seat backrest. 122
122
Seats and st
owing

#
Secure thero of luggage rack tothefa stening
points benea thcovers 1 . #
Comply with the installation inst ructions of the
ro of luggage rack manufacturer. #
Secure the load on thero of luggage rack. Soc
ke
Soc kets
ts Using t
Using t
he 12 V soc ket
he 12 V soc ket R
R
eq
eq uir
uir ements:
ements:
R Only devices up toa maximum of 180 W
(15 A) are permissible.
Depending on theve hicle equipment, theve hicle
has thefo llowing 12 V soc kets:
R Inthe st owage compartment in the front
centre console
R Inthe boot Example: 12 V soc
ket in the st owage compartment
in the front centre console #
Fold up soc ket cap 1. #
Inse rtthe plug of the device.
12 V soc ke
12 V soc ket in t
t in t he st ow
he st owag
age com
e com par
partment wit
tment wit h
h
cov
cov er:
er:ifyo u ha veconnected a device tothe 12 V
soc ket, lea vethe co ver of the st owage compart-
ment open. Using t
Using t
he 115 V soc ke
he 115 V soc ket in t
t in t he r
he rear passeng
ear passeng er
er
com
com par
partment
tment &
D
DAN
AN GER
GER Risk of fatal injuries due to a
damaged connecting cable or a damaged
soc ket
Yo u could receive an elect ric shock if the con-
necting cable or the 115 V po wer soc ket is
pulled out of the trim or is damaged or wet. #
Use only connecting cables that are dry
and free of damage. #
When theve hicle is switched o., make
sure that the 115 V po wer soc ket is dr y. #
Immediately ha vethe 115 V po wer
soc ketch ecked or replaced at a quali/ed
specialised workshop if it is damaged or
has been pulled out of the trim. #
Never plug the connecting cable into a
115 V po wer soc ketth at is damaged or
has been pulled out of the trim. Seats and st
owing
125 125

There is a
risk of injur y,particular lyin the
eve nt of sudden braking or a sudden change
in direction. #
Always st owobjects so that they cannot
be thro wn around in such situations. #
Always make sure that objects do not
pr otru de from st owage spaces, lug gage
nets or st owage nets. #
Close the loc kable st owage spaces
before starting a jou rney. #
Always st owand secure heavy, hard,
poin ted, sharp-edged, fragile or bulky
objects in the boot/load compartment. Obser
vethe no tes on loading theve hicle. &
W
W ARNING
ARNING Risk of /re from placing objects
in the mobile phone st owage compart-
ment
Placing other objects in the mobile phone
st ow age compartment could constitute a /re
hazard. #
Apart from a mobile phone, do not place
any other objects in the mobile phone
st ow age compartment, especially those
made of me tal. *
N
NOOTE
TE Damage toobjects caused byplac-
ing them in the mobile phone st owage
compartment If objects are placed in
the mobile phone
st ow age compartment, these may be dam-
aged byelectromagnetic /elds. #
Do not place credit cards, storage
media, ski passes or other objects sensi-
tive toelectromagnetic /elds in the
mobile phone st owage compartment. *
N NOOTE
TE Damage tothe mobile phone st ow-
age compartment caused byliquids If liquids enter
the mobile phone st owage
compartment, the compartment may be dam-
aged. #
Ensure that no liquids enter the mobile
phone st owage compartment. The
following no tes on wirelessly charging the
mobile phone must be obser ved:
R Depending on theve hicle equipment, the
mobile phone is connected totheve hicle's
ex terior aerial via thech arging module.
R The charging function and wireless connection
of the mobile phone totheve hicle's exterior
aerial are only available if theve hicle is
switched on.
R Small mobile phones may not be able tobe
ch arge d in every position of the mobile phone
st owa gecompartment.
R Largemobile phones which do not rest 0at in
th e mobile phone st owage compartment may
not be able tobe charge d or connected with
th eve hicle's exterior aerial.
R The mobile phone may heat up during the
ch arging process. This may particular ly
depend on the applications (apps) cur rently
open in the backg round.
R Toensure more e1cient charging and connec-
tion with theve hicle's exterior aerial, remo ve
th e pr otective co ver from the mobile phone. Seats and st
owing
127
127

Pr
otective co vers which are necessary for
wireless charging are an exception. Char
Char
ging a mobile phone wir
ging a mobile phone wir elessly
elesslyR
R
eq
eq uir
uir ements:
ements:
R The mobile phone is suitable for wireless
ch arging.
A list of compatible mobile phones can be
fo und at: https://www.mercedes-benz-
mobile.com. #
Place the mobile phone as close tothe centre
of the mar ked sur face on mat 1as possible
with the display facing upwards.
When a message is shown in the multimedia
system, the mobile phone is being charge d.
Malfunctions during thech arging process are
shown in the central displa y.
% The mat can be remo vedfo r cleaning, e.g.
using clean, luk ewarmwater.
S
S t
to
o w
w ag
ag e com
e com par
partment wit
tment without cov hout cover
er
Make sure the mobile phone is proper lystored
and secu redto prev ent it from falling out while
yo u are driving. #
T
To secur
o secur e t
e the mobile phone:
he mobile phone: swing lever2
out.
R
R adio eq
adio eq uipment appr ov
uipment appr oval number
al number s f
s for Br
or Br azil
azil
This device operates on a secondary basis, that is
to say it has no pr otection against harmful inter-
fe re nce, not even from the same type of stations,
and must not cause inter fere nce with systems
ope rating on a prima rybasis.
This product is permitted in accordance with the
procedure de/ned in Directive 242/2000 bythe
Brazilian telecommunications agency ANATEL and
meets the applicable tech nical requ irements.
Fu rther information is available on the ANATEL
we bsite. www.anatel.go v.br #
Further information on the declaration of con-
fo rm ity forve hicle components which receive
and/or transmit radio waves. 128
128
Seats and st
owing

F
F
itting/r
itting/r emo
emoving t
ving t he
he 0oor
0oor mats
mats &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. F
F
itting
itting 0oor
0oormats
mats #
Slide the cor responding seat backwards and
lay the 0oor mat in thefo ot we ll. #
Press studs 1onto holders 2. #
Adjust the cor responding seat.
R
R emo
emo ving
ving 0oor
0oor mats
mats #
Pull the 0oor mat o. holders 2. #
Remo vethe 0oor mat. Seats and st
owing
129
129

Dr
Dr
iving
iving N
No
ot
tes on Mer
es on Mer cedes-
cedes-AMG v
AMG vehicles
ehicles Obser
vethe no tes on thefo llowing additional top-
ics in the Supplement, as you may otherwise fail
to recognise dangers:
R Emotion Start
R AMG exhaust system
R RACE START
R DRIFT MODE
R AMG RIDE CONTROL
R AMG steering-wheel but tons N
No
ot
tes on plug-in h
es on plug-in h ybr
ybrids
ids N
No
ot
tes on plug-in h
es on plug-in h ybr
ybrid oper
id oper ation
ation &
W
W ARNI NG
ARNI NGRisk of chemical burns and poi-
soning from damaged high-voltage battery
If th e housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. #
Avoid contact with the skin, eyes or
clo thing. #
Immediate lyrinse electrolyte splashes
o. with water and seek medical atten-
tion straight away. &
D
DAN
AN GER
GER Risk of explosion from excessive
internal pressure of the high-voltage bat-
te ry
Flammable gas may escape and ignite in the
eve nt of a vehicle /re. #
Stop thech arging process immediately
in case of unusual odours, smoke or
burn mar ks. #
Leavethe danger zone immediatel y.
Secure the danger zone at a su1cient
distance. #
Call the /re brigade. The
hybrid system combines a combustion engine
with an electric mo tor. Characteristics when
theve hicle is at a standstill:
R The combustion engine is generally switched
o..
R Idle speed only occurs in cer tain instances.
Characteristics when starting theve hicle:
R Ifth e high-voltage battery is su1ciently
ch arge d, theve hicle can be star ted with the
electric drive without the combustion engine
(noiseless start).
R Ifth e high-voltage battery forth e electrical
drive is not su1ciently charge d or the operat-
ing temp erature of the combustion engine has
not been reached, theve hicle can start with
th e combustion engine.
% Depending on the system, it may happen that
ev en though the high-voltage battery is
ch arge d, electric mode has restric ted or no
av ailabilit y.Once the combustion engine has
been operated for long enough, electric mode
is again available without restriction.
% Tostart the combustion engine, the high-volt-
age battery can be used as a star ter batter y. 156 156
Driving and parking

In
theeve nt of an accident or impact tothe
ve hicle underbod y,components of the high-
vo ltage electrical system may be damaged
although the damage is not visible. #
Never make any modi/cations tothe
high- voltage on-board electrical system. #
Do not switch on or use theve hicle if its
high- voltage on-board electrical system
components ha vebeen modi/ed or dam-
aged. #
Neverto uch damaged components of
th e high-voltage on-board electrical sys-
te m. #
ATer an accident, do not touch any com-
ponents of the high-voltage on-board
electrical system. #
ATer an accident, ha vetheve hicle trans-
por tedawa y. #
Have the components of the high-voltage
on-board electrical system checked at a
qu ali/ed specialist workshop and
re placed if necessar y. R
R
eq
eq uir
uir ements:
ements:
Only disconnect the high-voltage on-board electri-
cal system manually in thefo llowing situations:
R The 6 restraint system warning lamp lights
up in the Instrument Displa y,e.g. aTer an
accident.
R The vehicle is badly damaged, e.g. aTer an
accident, and there straint system co mpo-
nents ha venot been triggered. T
T
o oper
o oper at
ate t
e t he high-v
he high-v olt
oltag
age disconnect de
e disconnect de vice
vice #
Switch o. theve hicle. #
ShiT the transmission toposition j. #
Apply the electric parking brake. #
Secure theve hicle against rolling away (see
th eve hicle Owner's Manual). #
Open the bonnet. 158
158
Driving and parking

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