2021 MERCEDES-BENZ A-CLASS HATCHBACK charging

Characteristics with moderate po
wer output
re qu ests:
R The combustion engine is switched o. as
oTen as possible during the journe y.
R The vehicle can, depending on the drive pro-
gr am selected and the battery charge leve l, be
accelerated electrically up tospeeds of about
140 km/h.
Characteristics with high po wer output requ ests:
R The electric mo tor supports the combustion
engine (boost e.ect), e.g. when pulling away
or accelerating.
R The high-voltage battery is discharging.
Characteristics when releasing the accelerator
pedal during the journe y:
R The electric mo tor is operated as a alternator
when in overrun mode and during braking.
R The high-voltage battery is charging.
No tes on elect ric mode:
R Vehicles with hybrid systems generate signi/-
cant lyless noise when stationary and when being driven
than vehicles with combustion
engines.
R When driving in elect ric mode, theve hicle may
not be heard by otherroad users due tothe
signi/cant lyreduced noise generated.
It is forth is reason that theve hicle is equip-
ped with a sound generator, which ser ves as
an acoustic vehicle warning system (A VAS).
R If not all of theve hicle conditions for electric
mode are met, then the combustion engine is
switched on.
% V
V ehicles wit
ehicles wit h diesel par
h diesel par ticulat
ticulate
e/lt
/lt er
ers:
s: During
th ere ge neration of the diesel particulate /l-
te r,th e drive prog rammes are not available or
are restric ted and the battery charge level
may change.
No tes on the acoustic vehicle warning system:
R The sound generator generates speed-depend-
ent vehicle noise emissions when driving
fo rw ard or backing up at a speed of up to
around 30 km/h. R
This helps other road users, particular ly
pedest rians and cyclists, tohear your vehicle
better.
R When driving at speeds abo ve20 km/h The
ve hicle acoustic warning system gradually
switches o..
R The sound generator is o. when theve hicle is
stationar y.
Manual disconnection of t
Manual disconnection of t he high-v
he high-volt
oltag
age on-
e on-
boar
boar d electr
d electr ical syst
ical syst em
em &
D
DAN
AN GER
GER Risk of dea thand /re due to
modi/ed and/or damaged components of
th e high-voltage on-board electrical sys-
tem
The vehicle's high- voltage on-board electrical
system is under high voltage. If you modify
component parts in theve hicle's high- voltage
on-board electrical system or touch damaged
component parts, you may be electrocuted. In
addition, modi/ed and/or damaged compo-
nents may cause a /re. Driving and parking
163
163

#
Screw disposable hose 3onto the opening
of Ad Blue ®
re/ll canis ter4 until hand-tight. #
Screw disposable hose 3onto the /ller neck
of theve hicle until hand-tight. #
LiT up and tip AdBlue ®
re/ll canis ter4.
The /lling process stops when theAd Blue ®
ta nk is comple tely full.
Ad Blue ®
re/ll canis ter4 can be remo ved
when it has been only partial lyem ptied. #
Unscr ewand close disposable hose 3and
Ad Blue ®
re/ll canis ter4 inreve rse order. #
Replace AdBlue ®
/ller cap 2and turn it
clo ckwise until it audibly engages. #
Close fuel /ller 0ap 1.#
Switch on theve hicle for at least 60 seconds.
% Ifth eve hicle could not be star ted as the
Ad Blue ®
tank was em pty, it can take up to
60 seconds forth ere /ll tobe de tected. #
Start theve hicle.
% Avoid storing AdBlue ®
re/ll con tainers perma-
nently in theve hicle. Char
Char
ging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery (plug-in
y (plug-in
h
h ybr
ybr id)
id) N
No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt ery
ery *
N
NOOTE
TE High-voltage battery damage due to
leaving theve hicle idle for lengt hyperiods
of time Lithium-ion batteries
experience a natural self-
dischar ge.
Exhausti vedischarging can therefore occur if
th eve hicle is idle for se veral months. This can
damage the high-voltage batter y. #
Toavo id damage, please obser vethefo l-
lowing recommendations when handling
th e high-voltage batter y. *
N
NO
OTE
TE Accelerated ageing of the high-volt-
age battery As a
result of its basic characteristics, the
storage capacity of and the amount of energy
av ailable from the high-voltage battery
decrease over the course of its life. Due to th
is, bo th the maximum electrical range that
can be achie vedby theve hicle and its maxi-
mum elect rical output can be impaired.
The following factors could accelerate the age-
ing of the high-voltage batter y:
R a high le vel of charge , especially if the
ve hicle is idle for a lengt hyperiod of time
R frequent rapid charging with direct cur rent
(mode 4)
R leaving theve hicle idle for lengt hyperiods
at high ambient temp eratures #
Toavo id accelerated ageing, please
obser vethefo llowing recommendations
when handling the high-voltage batter y. Re
commendations when handling the high-voltage
batter y:
R Only charge the high-voltage battery with
direct cur rent (mode 4) if necessar y.
R If leaving theve hicle idle for lengt hyperiods,
park up theve hicle with a high- voltage battery
ch arge leve l between 25% and 30%. Do not 194
194
Driving and parking

ke
ep the high-voltage battery continuously
connected topowe r supply equipment.
R If leaving theve hicle idle for lengt hyperiods of
time avoid, if possible, high ambient temp era-
tures.
R Check the high-voltage battery's charge level
ev ery six weeks (/ page 211).
R Char gethe high-voltage battery if thech arge
le ve l is below 15%.
R Do not disconnect the 12 V battery even if the
ve hicle is leT idle for a lengt hyperiod. Other-
wise, the condition of theve hicle's high- volt-
age battery cannot be monitored.
Depending on the equipment and national ver-
sion, your vehicle is equipped with one of thefo l-
lowing vehicle soc kets:
R Type 1 forch arging with alternating cur rent
(mode 2/3)
R Type Combo 1 forch arging with alternating
cur rent (mode 2/3) and charging with direct
cur rent (mode 4)
R Type 2 forch arging with alternating cur rent
(mode 2/3) R
Type Combo 2 forch arging with alternating
cur rent (mode 2/3) and charging with direct
cur rent (mode 4) Combo 1
vehicle soc ket Combo 2
vehicle soc ket
1 Type 1 or type 2 connection forch arging with
alternating cur rent
2 Socketex tension forch arging with direct cur-
re nt Driving and parking
195
195

%
When using a CCS (Combined Charging Sys-
te m) charging cable tocharge with direct cur-
re nt at a combo vehicle soc ket, bo thvehicle
soc ket connections 1and 2are used for
ch arging.
Charging options forth e high-voltage battery
(mode 2, 3 or 4):
R Charging through recuperation while theve hi-
cle is in motion
R Charging with alternating cur rent when sta-
tiona ry:
- at a mains soc ket (mode 2)
- at a wallbox or charging station (mode 3)
R Charging with direct cur rent when stationary
(vehicles with combo vehicle soc kets):
- at a fast charging station (mode 4)
Depending on the count ry-speci/c vehicle equip-
ment and your vehicle's charging cable, single
phase ACcharging is also possible.
Obser vethe di.erent grid requ irements of your
cur rent location when charging. Only use charging
cables which conform tothegr id requiremen ts.Consult a
quali/ed elect rician or your local grid
operator if you ha veany questions.
It is recommended that youch arge the high-volt-
age battery at a wallbox or charging station due to
th e impr ovedch arging per form ance and better
ch arging e1ciency o.ered.
S
S t
to
o wing t
wing t he c
he char
harging cable
ging cable
Alw ays st owtheve hicle charging cable in the
ch arging cable bag pr ovided and secure it in the
boot or load compartment of your vehicle.
Otherwise, thech arging cable is not su1ciently
secured.
Syst Syst em limits
em limits
The po wer output of the high-voltage battery may
be impaired bythefo llowing:
R High or low outside temp eratures
R Electrical auxiliary consumers in theve hicle
being switched on, e.g. operating the air con-
ditioning system
R Extended periods without charging The
charging time of the high-voltage battery may
be increased bythefo llowing:
R High or low outside tempe ratures
R Extended periods without charging
R The maximum available charge cur rent of the
ch arging facility
R The charging cur rent set (mode 2) in the multi-
media system (/ page 298) N
No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery at t
y at t he
he
mains soc ke
mains soc ket (mode 2)
t (mode 2) &
D
DAN
AN GER
GER Risk of fatal injury from incor-
re ctly ins talled component parts
Connecting thech arging cable toa mains
soc ket using incor rectly ins talled component
parts could cause a /re or an electric shoc k,
fo rex ample. #
Only connect thech arging cable to a
mains soc ketth at:
R Has been proper lyinstalled and 196
196
Driving and parking

R
Has been inspec tedby aqu ali/ed elect ri-
cian #
For saf etyre asons, only use thech arging
cable supplied with theve hicle or an
original Mercedes-Benz charging cable. #
Purchase these parts at a Mercedes-
Benz Service Centre and obtain advice
th ere.
Mercedes-Benz thoroughly tests these original
ch arging cables forth eir suitability for high-
vo ltage charging of your vehicle. #
Never use a damaged charging cable. #
Do not use:
R Extension cables
R Extension reels
R Multiple soc kets #
Never use soc ket ada pters toconnect
th ech arging cable tothe mains soc ket.
The only exception being if the adap ter
has been tested and appro vedby the manufacturer
forch arging the high-volt-
age battery of an electric vehicle. #
Obser vethe saf ety no tes in the operat-
ing inst ructions forth e soc ket ada pter. Only
thefo llowing charging cables may be used:
R The charging cable supplied with theve hicle.
R Ach arging cable that has been appr ovedfor
th eve hicle.
The charging process can vary depending on the
po we r supply equipment.
Shor terch arging times can be achie ved in thefo l-
lowing ways:
R Charging at a wallbox.
R Charging at a charging station.
When doing so, alw ays obser vethe local informa-
tion.
Do not lea vethech arging cable cont rols hanging
loose from a mains soc ket. Do not liT
the controls bythefo llowing compo-
nent parts:
R The charging cable connector.
R The mains plug.
When charging, pr otect thech arging cable cont rol
element from excessive heat such as direct sun-
light. Otherwise, thech arging process may be
cancelled. N No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery at a
y at a
w
w allbo
allbo x or c
x or c har
har ging st
ging st ation (mode 3)
ation (mode 3) &
D
DAN
AN GER
GER Risk of fatal injury from incor-
re ctly ins talled component parts
Connecting thech arging cable toawa llbox
using incor rectly ins talled component parts
could cause a /re or an electric shoc k,for
ex ample. #
Only connect thech arging cable to a
wa llbox that:
R Has been proper lyinstalled and Driving and parking
197
197

R
Has been inspec tedby aqu ali/ed elect ri-
cian #
For saf etyre asons, only use charging
cables that ha vebeen tested and
appro vedby the manufacturer forch arg-
ing the high-voltage battery in an electric
ve hicle. #
Never use damaged charging cables. #
Do not extend thech arging cable. #
Do not use adap ters. #
Obser vethe saf ety no tes in the operat-
ing inst ructions forth ewa llbox. If
ch arging at a wallbox without pre-ins talled
cable, use the optionally available charging cable
fo rwa llbox and charging station (mode 3). The
ch arging cable is st owed in a bag in the boot/
luggage compartment.
Only use charging cables that ha vebeen tested
and appro vedby the manufacturer forch arging
th e high-voltage battery in an electric vehicle. &
D DAN
AN GER
GER Risk of fatal injuries due todam-
aged components
Connecting thech arging cable toach arging
station using a damaged component part
could cause a /re or an elect ric shoc k,for
ex ample. #
Forch arging stations with a preinstalled
ch arging cable:
R Perform a visual check of thech arg-
ing station for obvious faults, such as
massive damage tothe housing or
ch arging cable. #
Forch arging stations without a preinstal-
led charging cable:
R For saf etyre asons, only use charging
cables that ha vebeen tested and
appro vedby the manufacturer for
ch arging the high-voltage battery in
an electric vehicle.
R Never use damaged charging cables.
R Do not extend thech arging cable.
R Do not use adap ters. #
Make sure toobser vethe saf ety in form a-
tion on thech arging station. Most
charging stations must be activated before
th ech arging process, e.g. using an RFID card.
Obser vethe on-site operator's inst ructions forthe
ch arging station.
The amount of ene rgy dispensed forth ech arging
process, shown bythech arging station, may be
higher than the amount of energy actually absor-
bed bythe high-voltage batter y.This is there sult
of di.erent le vels of charging losses and is descri-
bed as rech arge e1ciency. Charging losses occur,
fo rex ample, due toheat that builds up when
ch arging or from auxiliary consumers that are
switched on. Further information on rech arge e1-
ciency can be obtained at a quali/ed specialist
wo rkshop. 198
198
Driving and parking

N
N
o
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
olt ag
age batt
e batt er
ery at a
y at a
f
f as
ast c t c har
har ging st
ging st ation (mode 4)
ation (mode 4) &
D
D AN
AN GER
GER Risk of fatal injuries due todam-
aged components
Connecting thech arging cable toach arging
station using a damaged component part
could cause a /re or an elect ric shoc k,for
ex ample. #
Forch arging stations with a preinstalled
ch arging cable:
R Perform a visual check of thech arg-
ing station for obvious faults, such as
massive damage tothe housing or
ch arging cable. #
Forch arging stations without a preinstal-
led charging cable:
R For saf etyre asons, only use charging
cables that ha vebeen tested and
appro vedby the manufacturer for
ch arging the high-voltage battery in
an electric vehicle.
R Never use damaged charging cables.
R Do not extend thech arging cable. R
Do not use adap ters. #
Make sure toobser vethe saf ety in form a-
tion on thech arging station. Most
charging stations must be activated before
th ech arging process, e.g. using an RFID card.
Obser vethe on-site operator's inst ructions forthe
ch arging station.
The charging cable forth eve hicle must not be
lon gerth an 30 m due tothe legal requ irements in
some countries. This is toprev ent the inter fer-
ence of signals being received byradio communi-
cation devices in theve hicle or in close pr oximity
to thech arging station. Be awarethat parts of the
ch arging cable may be routed under ground. If in
doubt, ask thech arging station operator if this is
th e case before charging the high-voltage batter y.
The amount of energy dispensed forth ech arging
process, shown bythech arging station, may be
higher than the amount of energy actually absor-
bed bythe high-voltage batter y.This is there sult
of di.erent le vels of charging losses and is descri-
bed as rech arge e1ciency. Charging losses occur,
fo rex ample, due toheat that builds up when ch
arging or from auxiliary consumers that are
switched on. Further information on rech arge e1-
ciency can be obtained at a quali/ed specialist
wo rkshop. Se
Se
tting t
tting t he maximum per
he maximum per missible c
missible char
harging cur-
ging cur-
r
r ent f
ent f or c
or char
harging at a mains soc ket
ging at a mains soc ket *
N
NO
OTE
TE Overloading the mains soc ket due
to excessive charging cur rent If
th ech arging cur rent is too high, the fuse
could be tripped or theex tern al mains supply
could overheat. #
Make sure that theex tern al mains supply
has been designed tohandle the set
ch arging cur rent. #
If necessar y,reduce the set charging
cur rent or use a di.erent mains soc ket. #
For saf etyre asons, only use thech arging
cable supplied with theve hicle or an
original Mercedes-Benz charging cable.
Mercedes-Benz thoroughly tests these
original charging cables forth eir suitabil- Driving and parking
199
199

ity
for high-voltage charging of your vehi-
cle. Pur chase these parts at a Mercedes-
Benz Service Centre and obtain advice
th ere. #
Check the setting of the maximum
ch arge cur rent using thech arging capa-
city shown in the Instrument Displa y.Before
charging at a mains soc ket, ha vethe maxi-
mum permissible charging cur rent forth ere leva nt
mains soc ket or the building inspected byaqu ali-
/ed elect rician. The charging cable supplied is set
to a countr y-speci/c maximum charging cur rent
va lue. When charging abroad, the maximum value
may exceed the permitted value forth at countr y.
When abroad, obser vethe count ry-speci/c la ws
when charging. If you ha vequestions concerning
setting thech arging cur rent or if there is a mal-
function, please contact a quali/ed specialist
wo rkshop. #
Set the maximum permissible charging cur-
re nt in the multimedia system menu
(/ page 298). If
th eex act value of the maximum permissible
ch arging cur rent cannot be set, select the next
smaller adjustable value.
% Ifth eve hicle requ ires more time than usual to
ch arge the high-voltage batter y,ch eck the
maximum charging cur rent settings in the
multimedia system menu. Ov Ov
er
ervie
vie w of t
w of t he c
he char
harging cable contr
ging cable contr ol panel
ol panel The
charging cable cont rol panel sho ws the cur-
re nt status of thech arging process. 1
Supply voltage indicator
2 Charging process indicator 3
Temp erature monitor indicator
4 Safety sy stem indicator
Suppl
Suppl y v
y volt
oltag
age indicat
e indicat or
or1
1 Display
Display
Meaning
Meaning
Lights up whit eThe supplyvoltage is
connected. Char
Char
ging pr
ging pr ocess indicat
ocess indicat or
or2
2 Display Display
Meaning Meaning
Flashes green The high-voltage bat-
tery isch arging. 200
200
Driving and parking