2021 MERCEDES-BENZ A-CLASS SALOON stop start

#
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 188
188
Driving and parking

Combo 2
vehicle soc ket #
Press the centre rear section of soc ket 0ap
1 and swing the soc ket 0ap forw ards and
open.
The % indicator lamp 2and status dis-
play 3light up white. %
When theve hicle is switched on (the õ
displ ayis lit in the Instrument Display), soc ket
0ap 1cannot be opened. #
Press cat ch7 tothe leT and fold open
soc ket co ver5.
% Vehicles with a vehicle soc ket combo requ ire
only connection 8forth ech arging cable
connector. Open only the upper part of soc ket
co ver5. #
Tocharge at a mains soc ket, insert the mains
plug into the mains soc ket of theex tern al
po we r source tothe stop and set the maxi-
mum charging cur rent if requ ired
(/ page 193). #
Insert thech arging cable connector into vehi-
cle soc ket connection 8tothe stop. If the
wa llbox/charging station is not equipped with
a ch arging cable, inse rtthe plug of theve hi-
cle's charging cable into thewa llbox/charging
station soc ketto the stop.
Make sure that thech arging cable is not taut
when inser ted. The
# indicator lamp 4and status dis-
play 30ash orange and, as soon as the high-
vo ltage battery is charge d, green.
When thech arging cable is connected totheve hi-
cle, theve hicle cann otbe star ted or mo ved.
At the start of thech arging process, thech arge
le ve l display is shown in the Instrument Display
with a charging prediction. The charging predic-
tion either refers to the predicted charge leve l at
th e set departure time, or the time at which the
high- voltage battery will be fully charge d.
% Depending on thete mp erature, thefa n and
bat tery cooling system may audibly switch on
during thech arging process.
% Ifth eve hicle is idle for lengt hyperiods and
connected tothe mains suppl y,the high-volt-
age battery will be rech arge d automatically as
needed or when electrical consumers are
activated (e.g. the pre-entry climate control). Driving and parking
199 199

Combo 1
vehicle soc ket Combo 2
vehicle soc ket #
Press the centre rear section of soc ket 0ap
1 and swing the soc ket 0ap forw ards and
open.
The % indicator lamp 2and status dis-
play 3light up white. %
When theve hicle is switched on (the õ
displ ayis lit in the Instrument Display), soc ket
0ap 1cannot be opened. #
Press cat ch7 tothe leT and fold open
soc ket co ver5.
% The CCS charging cable connector requ ires
connections 6and 8. Therefore, it is nec-
essary toopen bo thparts of soc ket co ver5. #
Insert the CCS charging cable connector into
th eve hicle soc ketto the stop.
Make sure that thech arging cable is not taut
when inser ted.
The # indicator lamp 4and status dis-
play 30ash orange and, as soon as the high-
vo ltage battery is charge d, green.
When thech arging cable is connected totheve hi-
cle, theve hicle cann otbe star ted or mo ved.
At the start of thech arging process, thech arge
le ve l display is shown in the Instrument Display
with a charging prediction. The charging predic-
tion either refers to the predicted charge leve l at
th e set departure time, or the time at which the
high- voltage battery will be fully charge d. Driving and parking
203 203

R
EBD (E Electronic B Brakeforce D Distribution)
( / page 218)
R STEER CONTROL (/ page 218)
R HOLD function (/ page 219)
R Hill Start Assist (/ page 220)
R Adaptive Brake Lights (/ page 220)
R Start-o. assist (/ page 221)
R ATTENTION ASSIST (/ page 221)
R Cruise cont rol (/ page 223)
R Limiter (/ page 223)
R Tra1c Sign Assist (/ page 241)
R Speed Limit Assist (countr y-dependent)
(/ page 240)
R Suspension with adaptive damping adjustment
(/ page 248)
Dr
Dr iving Assist
iving Assist ance pack
ance package
age
The following functions are part of the Driving
Assistance Package. Cer tain functions are only
av ailable in some countries. Some functions are
also available without the Driving Assistance
Pa ckage, albeit with restric ted functionality. R
Active Distance Assist DISTRONIC
(/ page 226)
R Active Speed Limit Assist (countr y-dependent)
(/ page 230)
R Route-based speed adap tation (countr y-
dependent) (/ page 231)
R Active Brake Assist (/ page 235)
R Active Steering Assist (countr y-dependent)
(/ page 232)
R Active Emer gency Stop Assist (countr y-
dependent) (/ page 234)
R Blind Spot Assist and Active Blind Spot Assist
with exitwa rning (/ page 243)
R Active Lane Keeping Assist (/ page 246)
P
P ar
ar king P
king P ack
ackage
age
R Reversing camera (/ page 249)
R 360° Camera (/ page 251)
R Parking Assist PARKTRONIC (/ page 255)
R Active Parking Assist (/ page 259) F
F
unctions of ABS
unctions of ABS The Anti-lock Brake System (ABS)
regulates the
brake pressure in critical driving situations:
R During braking, for instance, at maximum full-
stop braking or if there is insu1cient tyre trac-
tion, the wheels are pr evented from locking.
R Vehicle steerability while braking is ensu red.
If ABS inter venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road con-
ditions and can ser veas a reminder totake extra
care while driving.
Syst
Syst em limits
em limits
R ABS is acti vefrom speeds of approx. 5 km/h.
R ABS may be impaired or may not function if a
malfunction has occu rred and theye llow !
ABS warning lamp lights up continuously aTer
th eve hicle is star ted. Driving and parking
215
215

HOLD function
HOLD function
HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand-
still without requ iring youto depress the brake
pedal, e.g. while waiting in tra1c.
The HOLD function is only an aid. The responsibil-
ity forth eve hicle safely standing still remains with
th e driver.
Syst
Syst em limits em limits
The HOLD function is only intended toprov ide
assistance when driving and is not a su1cient
means of safeguarding theve hicle against rolling
awa y when stationa ry.
R The incline must not be greater than 30%. A
A ctiv ctiv ating/deactiv
ating/deactiv ating t
ating the HOLD function
he HOLD function &
W
WARNING
ARNING Risk of an accident due tothe
HOLD function being active when you
lea vetheve hicle
If th eve hicle is only braked with the HOLD
function it could, in thefo llowing situations,
ro llawa y:
R Ifth ere is a malfunction in the system or in
th e po wer suppl y.
R Ifth e HOLD function is deactivated by
depressing the accelerator pedal or brake
pedal, e.g. byave hicle occupant. #
Always secure theve hicle against rolling
awa y before you lea veit. R
R
eq
eq uir
uir ements:
ements:
R The vehicle is stationar y.
R The driver's door is closed or the seat belt on
th e driver's side is fastened.
R The vehicle has been star ted or has been
automatically switched o. bythe ECO start/
stop function. R
The vehicle has been star ted.
R The electric parking brake is released.
R Active Distance Assist DISTRONIC is deactiva-
te d.
R V
V ehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: the
transmission is in position h,kori.
A
A ctiv
ctiv ating t
ating t he HOLD function
he HOLD function #
Depress the brake pedal, and aTer a short
time quickly depress fur ther until theë
display appears in the Instrument Displa y. #
Release the brake pedal.
Deactiv
Deactiv ating t
ating the HOLD function
he HOLD function #
Depress the accelerator pedal topull away.
or #
Depress the brake pedal until theë display
disappears from the Instrument Displa y.
The HOLD function is deactivated in thefo llowing
situations:
R Active Distance Assist DISTRONIC is acti va-
te d. Driving and parking
219
219

Speed Limit Assist
Speed Limit Assist
F
F
unction of Speed Limit Assist
unction of Speed Limit Assist
% Speed Limit Assist uses OpenStreetMap da ta,
which is made available under the conditions
of the Open Database License (OBbL). Further
information can be found at: https://
www.osmfoundation.org/wiki/licence.
Speed Limit Assist de tects speed limits with a
multifunction camera and displa ys them in the
inst rument clus ter and optionally in the head-up
displa y.The camera also de tects speed limits with
a re striction indicated byan additional sign (e.g.
when wet). The system de tects stop signs,
th ereby pr eventing the engine from being
switched o. bythe ECO start/s top function.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 213).
W
W ar
ar ning when t
ning when t he maximum per
he maximum per missible speed is
missible speed is
ex
ex ceeded
ceeded
The system can warnyou if you unintentionally
ex ceed the maximum permissible speed. Todo
th is, you can specify in the multimedia system by
how much the maximum permissible speed can be
exceeded before a warning is issued. You can
specify whe ther thewa rning is tobe just a visual
wa rning or an acoustic one as well.
Displa
Displa y in t
y in the Ins
he Instr trument Display
ument Display
% The illustrations show the Instrument Display
in the widescreen cockpit. 1
Perm issible speed
2 Perm issible speed when there is a restriction
3 Additional sign with restriction
If Speed Limit Assist cannot de term ine the cur-
re nt maximum permissible speed (e.g. due to
missing signs), thefo llowing display appears in
th e Instrument Displa y: This is displa
yed continuously if theve hicle is in a
country where Speed Limit Assist is not suppor-
te d. Speed Limit Assist is not available in all coun-
tries.
Syst Syst em limits
em limits
The system may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth e windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
up, damaged or co vered.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered. 240 240
Driving and parking

%
You can stop theve hicle and change the
transmission position during the parking pro-
cedure. The system then calculates a new
ve hicle path. If no new vehicle path is availa-
ble, the system can change the transmission
position again or cancel the parking proce-
dure.
Exiting a par
Exiting a par king space wit
king space wit h A
h Activ
ctiv e P
e Par
arking Assist
king Assist
R
R eq
eq uir
uir ements:
ements:
R The vehicle has been par ked with Active Park-
ing Assist.
% Depending on theve hicle's equipment, the
button may also be located at a di.erent posi-
tion in the centre console.
Please no tethat you are responsible forth eve hi-
cle and sur roundings during the entire parking
procedure. #
Start theve hicle. #
Press but ton1.
The media display sh owsth e view of Active
Pa rking Assist. #
Ifth eve hicle has been par ked perpendicular
to the direction of tr avel: in area 2, select
direction of tr avel 3 Left orRight.
% The vehicle path shown on the media display
may di.er from the actual vehicle path. #
Con/rm direction of exit3 todrive out of the
parking space.
% The turn signal indicator is switched on auto-
matically when theex iting procedure begins.
Yo u are responsible for selecting the turn signal
indicator in accordance with the tra1c condi-
tions. If necessar y,select the turn signal indicator
accordingl y. 262 262
Driving and parking

R
From point 3,the maximum recuperated
energy has been reached.
R The cur rent state of charge of high-voltage
battery 5is displa yed. Displa
Displa
ying t
ying the pow
he pow er met
er meter (plug-in h
er (plug-in h ybr
ybrid)
id)
On-board computer: 4 Content #
Select Power meter. Ov
Ov
er
ervie
vie w of display
w of display s in t
s in the ins
he ins tr
trument display
ument display
Displa yson the inst rument displa y:
u Active Parking Assist (/ page 260)
é Parking Assist PARKTRONIC deactivated
(/ page 258)
h Cruise control (/ page 223)
È Limiter (/ page 223)
ç Active Distance Assist DISTRONIC
(/ page 226)
æ Active Brake Assist (/ page 235) à
Active Steering Assist (/ page 232)
à Active Lane Keeping Assist (/ page 246)
ò Sound generator inoperative (/ page 415)
è ECO start/stop function (/ page 166)
ë HOLD function (/ page 219)
_ Adaptive Highbeam Assist (/ page 135)
Ad aptive Highbeam Assist Plus
(/ page 136)
ð Maximum permissible speed exceeded (for
cer tain countries only)
V
V ehicles wit
ehicles wit h Speed Limit Assist:
h Speed Limit Assist: detected
instructions and tra1c signs (/ page 240).
V
V ehicles wit
ehicles wit h
hTr
Tra1c
a1c Sign Assist:
Sign Assist: detected instruc-
tions and tra1c signs (/ page 241). Head-up display
Head-up display
F
F
unction of t
unction of t he head-up display
he head-up display *
N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The head-up display projects
thefo llowing infor-
mation into the driver's /eld of vision abo vethe
cockpit, forex ample:
R The vehicle speed
R Information from the navigation system
R Information from the driving systems and driv-
ing saf ety sy stems
R Some warning messages
Depending on theve hicle's equipment, di.erent
content can be shown in theth re e areas of the
head-up displ ay (/page 277). 276
276
Inst
rument display and on-board computer