ECO mode MERCEDES-BENZ A-CLASS HATCHBACK 2021 Owner's Guide

*
re commended forth e lo west possible fuel con-
su mp tion
To achie vethe lo west possible fuel consum ption,
it is recommended touse the engine oil speci/ca-
tions mar ked in theta ble forth e lo westSA E vis-
cosity class. Obser veany possible restrictions of
th e appr ovedSA E viscosity classes.
% Ifth e engine oils listed in theta ble are not
av ailable, you may add a maximum of 1.0 litre
of engine oils with MB-F reigabe or MB-
Appr oval 229.31 or ACEA C3 once onl y.
Engine oil capacity (plug-in h
Engine oil capacity (plug-in h ybr
ybrid)
id) Model
Model
Capacity
Capacity
A 250 e4 .5 litresThe speci/e
d/lling capacity refers to an oil
ch ange with the oil /lter. N
No
ot
tes on br
es on br ak
ake
e 0uid
0uid No
tethe inst ructions about operating 0uids
(/ page 393). &
W
WARNING
ARNING Risk of an accident due to
va pour poc kets form ing in the brake sys-
tem
The brake 0uid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake 0uid. If the boiling point is too lo w,
va pour poc kets may form inthe brake system
when the brakes are applied hard.
This impairs the braking e.ect. #
Have the brake 0uid rene we d at the
speci/ed inter vals. Ha
ve the brake 0uid regula rly re placed at a quali-
/ed specialist workshop.
Only use a brake 0uid appr ovedby Mercedes-
Benz according toMB-F reigabe or MB-Appr oval
331.0. Coolant Coolant
N
No
ot
tes on coolant
es on coolant
Obser vethe no tes on operating 0uids
(/ page 393). &
W
WARNING
ARNING Risk of /re‑ and injury from
antif reeze
If antifreeze comes into contact with hot com-
ponent parts in the engine compartment, it
may ignite. #
Allow the engine tocool down before
yo uto p up the antifreeze. #
Make sure that no antif reeze spills out
next tothe /ller opening. #
Thoroughly clean the antifreeze from
component parts before starting the
ve hicle. *
N
NOOTE
TE Damage caused byincor rect cool-
ant #
Only use coolant that has been premixed
with there qu ired antifreeze pr otection.
Information on coolant is available at thefo l-
lowing locations:
R Inthe Mercedes-Benz Speci/cation for
Operating Fluids 320.1 Te
ch nical data
401 401

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Request service personnel from the operator of thech arging station via the emer gency call button attached tothe
ch arging station or the emer gency call numbers.
Vehicle not currently being
charged Charging station
fault *A
malfunction has occur red in thech arging station or the RFID card is not recognised. #
Start thech arging process at a di.erent charging station.
or #
Have the RFID card checkedto ensure it is functioning.
Charging method currently
unavailable Please try
again or change charging
method *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
Charging fault Please
change charging method
See Owner's Manual *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
Only electric drive availa-
ble Power limited *T
he fuel tank is em pty and the combustion engine is switched o.. The output of your vehicle is limi ted because you
are driving in elect ric mode. 424 424
Display messages and
warning/indicator lamps

Overview.................................................
.53
PA SSENGER AIR BAG indicator la mps...... 57
Pr otection................................................ 54
Re duced pr otection.................................. 55
Side airbag.............................................. 53
Wi ndow airbag......................................... 53
Air0 ow
Air0ow
Setting................................................... 153
Alar Alar m syst m syst em
em
see ATA (anti-theT alarm system)
All-wheel dr
All-wheel dr ive
ive
see 4M ATIC
Ambient lighting
Ambient lighting Setting (MBUX multimedia system)........ .142
Andr
Andr oid A
oid A uto
uto
see Smartphone integ ration
Animals
Animals Pets in theve hicle.................................... 80
Anti-loc
Anti-loc k br
k braking syst
aking syst em
em
see ABS (Anti-lock Braking System)
Anti-skid c
Anti-skid c hains
hains
see Sn owchains Anti-t
Anti-theT
heTprot
pr otection
ection
Ad ditional door loc k................................. 86
Immobiliser.............................................. 99
Anti-t
Anti-theT heTprot
pr otection
ection
see ATA (anti-theT alarm system)
Anticipat
Anticipat or
ory occupant pr ot
y occupant pr otection
ection
see PRE-SAFE ®
(anticipatory occu-
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay
Apple CarPlay ®
®
see Smartphone integ ration
Assist Assist ance syst ance syst ems
ems
see Driving saf ety sy stem
ASS YS
ASS YST PL
T PL US
US
Battery disconnection period s................ 331
Displaying the service due dat e.............. 330
Fu nction/no tes...................................... 330
Re gular maintenance work..................... 330
Special service requ irements................. 330
AT
ATA A(anti-t
(anti-theT heTalar
alarm syst
m syst em)
em)
Deactivating the alarm........................... 100
Fu nction.................................................. 99
Interior pr otection function.....................1 01Priming/deactivating interior pr
otec-
tion........................................................ 101
Priming/deactivating tow- awa y pro-
te ction................................................... 101
To w- awa y protection function................. 100
A
A TTENTION ASSIST TTENTION ASSIST
Function................................................ 227
Setting.................................................. .229
System limitations.................................. 227
A A tt tt ention assist
ention assist ant
ant
see ATTENTION ASSIST
A
A ut
ut hor
hor ised w
ised w ork
orkshop
shop
see Quali/ed specialist workshop
A
A ut
ut omatic car w
omatic car w ash mode
ash mode
Ac tivating............................................... 339
A
A ut
ut omatic co-dr
omatic co-dr iv
iver airbag
er airbag shut
shuto.
o.
Fu nction of co-driver airbag shuto........... 56
A
A ut
ut omatic dist
omatic dist ance contr
ance control
ol
see Active Distance Assist DISTRONIC
A
A ut
ut omatic dr
omatic dr iving lights
iving lights ................................ 135
A
A ut
ut omatic engine st
omatic engine st art
art
see ECO start/stop function 494
494
Index

Cleaning
Cleaning
see Care
Cleaning
Cleaning 0uid
0uid
see windscreen washer 0uid
Climat
Climat e contr
e contr ol
ol
Ac tivating/deactivating.......................... 154
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 154
Ac tivating/deactivating the synchro-
nisation function (control panel).............1 55
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 155
Air-recirculation mode (with /ne parti-
cle pre/lter)...........................................1 55
Au tomatic control................................. .154
Calling up the air conditioning menu....... 154
Demisting the windscreen...................... 153
Demisting windo ws................................ 155
Fr ont air vents........................................ 160
Immediate pre-entry clima tecont rol....... 158
No te...................................................... 153
Pre-entry climate control at depa rture
time.......................................................1 56
Pre-entry climate control using theke y... 156 Re
ar air vents......................................... 161
Re sidual heat......................................... 155
Setting (MBUX multimedia system)......... 154
Setting the air distribution...................... 153
Setting the air0ow.................................. 153
Setting theve hicle interior temp era-
ture....................................................... 153
St ationary heater/ ventilation................. 158
Switching the A/C function on/o.
(control panel)....................................... 154
Switching there ar wind owheater
on/o.................................................... 153
THERM ATIC cont rol panel...................... 153
THERMOTRONIC control panel............... 153
Ve ntilating theve hicle (con venience
opening).................................................. 94
Clot
Clot hes hook hes hook ................................................ 126
Co-dr Co-dr iv iver airbag
er airbag shut
shut o.
o.
see Automatic co-driver airbag shuto.
Coc
Coc kpit
kpit
Overview.............................................. 6, 10
Co.ee
Co.ee cup symbol
cup symbol
see ATTENTION ASSIST Collapsible spar
Collapsible spar
e wheel
e wheel
In0a ting................................................ .387
No tes..................................................... 386
Collision det
Collision det ection (park
ection (parked v
ed vehicle)
ehicle)
In fo rm ation........................................... .218
Combination switch
Combination switch ..................................... 136
Com
Com ponent-speci/c
ponent-speci/c inf
infor
ormation
mation................... 391
Com
Com put
puter
er
see On-board computer
Conv
Conv enience closing
enience closing...................................... 94
Conv
Conv enience opening
enience opening..................................... 94
Coolant (engine)
Coolant (engine) Levelch eck............................................ 336
No tes..................................................... 401
Cooling
Cooling see Climate control
Cop
Cop yr
yright
ight....................................................... 45
Cor
Cor ner
nering light
ing light............................................. 138
Cr
Cr oss
oss tr
tra1c
a1c (w
(war
arning)
ning)
see Manoeuvring assis tance
Cr
Cr oss
oss Tr
Tra1c
a1c Alert
Alert........................................ 270 498
498
Ind
ex

Sulphur content....................................
.395
Ta nk content.......................................... 397
F
F uel consump
uel consump tion indicat
tion indicator
or
Calling up.............................................. 181
F
F unction seat
unction seat
see Door cont rol panel
F
F uses
uses
Before replacing a fuse.......................... 364
Fu se assignment diag ram. ...................... 364
Fu se box in the engine compartment......3 65
Fu se box in the front passenger foot-
we ll........................................................ 366
Fu se box in the load compartment......... 367
No tes..................................................... 364 G
G
Gar Gar ag
age door opener
e door opener
Clea ring the memory.............................. 215
Gar Gar ag
age door openers
e door openers
Opening/closing the door......................2 15
Prog ramming buttons............................. 213
Re solving problems................................ 214
Syn chronising thero lling code................ 214
Gear
Gear shiT shiT r
recommendation
ecommendation................... 183, 186 Genuine par
Genuine par
ts
ts................................................ 25
Glide mode
Glide mode.................................................. 187
Gr Gr oss mass
oss mass.................................................. 392 H
H
Handbr
Handbr ake
ake
see Electric parking brake
Handling c
Handling c har
haract
act er
eris
istics (unusual)tics (unusual) ................ 368
Hazar
Hazar d w
d war
arning lights
ning lights................................... 137
Head r
Head r es
estrtraint
aint
Fr ont (adjusting mechanically)................ 108
Re ar (adjusting)..................................... .109
Re ar (removing//tting)........................... 110
Head-up displ ay
Head-up display
Adjusting brightness (on-board com-
puter).................................................... 283
Ad justing display elements (on-board
co mp uter).............................................. 283
Care...................................................... 343
Fu nction................................................ 282
Menu (on-boa rdcomputer)..................... 283
Operating the memory function.............. 115 Setting
the position (on-board com-
puter).................................................... 283
Switching on/o.....................................2 84
Headlam
Headlam p p0ashing
0ashing ........................................ 136
Headlam
Headlam ps
ps
see Automatic driving lights
Heating
Heating see Climate control
Help call
Help call see Mercedes-Benz emer gency call system
High beam
High beam Activating/deactivating.......................... 136
High beam
High beam see Adaptive Highbeam Assist
see Adaptive Highbeam Assist Plus
High-pr
High-pr essur
essure cleaner (car
e cleaner (car e)
e)........................ 339
High-v
High-v olt
oltag
age batt
e batt ery
ery
Char geleve l displa y............................... 211
Charg ing cable control panel.................. 200
Charging duration.................................. 404
Connection types...................................4 04
Ending thech arging process (alternat-
ing cur rent, mode 2/3).......................... 206 508 508
Ind
ex

Con
venience closing............................... .94
Con venience opening.............................. .94
Opening with theke y................................ 94
Opening/closing...................................... 92
Problem................................................... 95
Ra in closing function................................ 93
Sliding sunr Sliding sunr oof
oof
Au tomatic functions................................. 98
Closing................................................... .95
Closing using theke y............................... 94
Opening................................................... 95
Opening wi th theke y................................ 94
Problem................................................... 99
Ra in-closing feature................................ .98
Smar
Smar tphone
tphone
see Sma rtphone integ ration
see Telephone
Smar
Smar tphone int
tphone int egr
egration
ation
Overview................................................ 319
Sno
Sno w c
w chains
hains................................................3 68
Soc ke
Soc ket (12 V)
t (12 V)
Boot/luggage compartment................... 128
Fr ont centre console.............................. 128 Soc
ke
Soc ket (115 V)
t (115 V)
Re ar....................................................... 129
SoTw
SoTw are
areupdate
update
System updates.................................... .294
Sound
Sound PRE-SAFE ®
Sound................................... 60
Sound menu
Sound menu Functions overview................................ 329
Spar
Spar e wheel
e wheel
see Collapsible spare wheel
see Emer gency spa rewheel
Specialis
Specialis t w
t work
ork shop
shop
see Quali/ed specialist workshop
Speci/c
Speci/c absorp
absorption r
tion rate
ate................................. 29
Speed Limit Assist
Speed Limit Assist Function/no tes...................................... 246
Setting................................................... 247
System limitations.................................. 246
Speed limit f
Speed limit f or wint
or winter tyr
er tyres
es
Setting................................................... 232
St St andb andb y mode
y mode
Ac tivating/deactivating.......................... 219
Fu nction................................................ 218 S
S
t
tanding lights
anding lights............................................ .134
St
St ar
art-o.
t-o. assist
assist
Ac tivating............................................... 227
Fu nction................................................ 227
St
St ar
art/st
t/st op butt
op butt on
on
Pa rking theve hicle................................. 211
St arting theve hicle............................... .166
Switching on the po wer supply/vehicle.. 165
St
St ar
art/st
t/st op function
op function
see ECO start/stop function
St
St art
art er batt
er batt ery
ery
Charging (Remo teOnline)..................... .167
St
St ar
arting
ting
see Vehicle
St
St ar
arting assist
ting assist ance
ance
see Jump-start connection
St
St ar
arting-o.
ting-o. aid
aid
see Hill Start Assist
St
St ationar
ationar y heat
y heat er/v
er/ventilation
entilation
Ac tivating/deactivating (control panel)... 159
Setting (MBUX multimedia system)......... 160
S
S TEER C
TEER C ONTR
ONTROL
OL
Fu nction/no tes...................................... 224 520
520
Index