2021 MERCEDES-BENZ A-CLASS HATCHBACK climate control

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
&
Pre-entry climate control
(via key) available again
after engine start *Y
ou ha veattem pted toswitch on pre-ent ryclimate cont rol more than twice with theve hicle switched o.. #
Start theve hicle forte n seconds.
Pre-entry clima tecont rol is operational again.
& Pre-entry climate control
(via key) inoperative HV-
battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
When the high-voltage battery is su1ciently charge d, pre-ent ryclimate cont rol will be operational again. 422 422
Display message
s andwarning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Refuel immedia tely.
Subse quentl y,there may be temp orary restrictions in theav ailability of elect ric mode over a driving distance of
50 km.
If th ere is fuel in theve hicle, there is a fault with the combustion engine. #
Consult a quali/ed specialist workshop.
"Electric" drive program
currently unavailable *T
hecharge leve l of the high-voltage battery is not su1cient forth e Electric drive prog ram.
Char gethe high-voltage battery (/ page 194).
Reduced drive system per-
formance See Owner's
Manual *T
he drive system switches toemer gency ope ration mode due toa malfunction. #
Drive on carefull y. #
Consult a quali/ed specialist workshop.
Û
Battery overheated Stop,
everybody out! Outdoors if
possible *T
he high- voltage battery has overheated. There is a risk of /re. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
If possible, stop theve hicle in the open air and ensure that all vehicle occupants getout.
% Supporting vehicle functions may activate automaticall y,e.g. the air-recirculation mode as part of climate control. #
Do not continue driving. #
If smoke is present, lea vethe danger zone and call the /re service immediatel y. #
Consult a quali/ed specialist workshop even if there are no extern al signs of a /re. Displ
aymessages and warning/indicator lamps
425 425

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

V
V
ehicle dimensions
ehicle dimensions ...................................... 403
V
V ehicle emerg
ehicle emerg ency st
ency start
art...............................3 64
V
V ehicle
ehicle identi/cation
identi/cation number
number
see VIN
V
V ehicle
ehicle identi/cation
identi/cation plate
plate
EU type appr oval number....................... 392
Maximum gross vehicle weight............... 392
Pa int code............................................. 392
Pe rm issible axle load.............................. 392
VIN........................................................3 92
V
V ehicle int
ehicle int er
erior
ior
Cooling or heating (Remo teOnline)........ 167
V
V ehicle key
ehicle key
see Key
V
V ehicle maint
ehicle maint enance
enance
see ASS YST PLUS
V
V ehicle sensors
ehicle sensors
Information............................................ 220
V
V ehicle so cket
ehicle soc ket
Care...................................................... 342
Indicator lamps...................................... 201
V V ehicle t
ehicle t ool kit
ool kit
TIREFIT kit...................................... 349, 350 To
wing eye............................................. 363
V
V entilating
entilating
Con venience opening.............................. .94
V
V entilation
entilation
see Climate control
V
V ents
ents
see Air vents
VIN
VIN Engine compartment.............................. 392
Identi/cation pla te................................. 392
Wi ndsc reen............................................ 392
V
V ision
ision
Demisting windo ws................................ 155 W
W
W
W ar
ar ning lamp
ning lamp
see Warning/indicator lamp
W
W ar
ar ning syst
ning syst em
em
see ATA (anti-theT alarm system)
W
W ar
ar ning tr
ning tr iangle
iangle
Re moving............................................... 346
Setting up.............................................. 347 W
W
ar
ar ning/indicat
ning/indicat or lamp
or lamp
! ABSwarning lamp......................... 488
Ó Active Brake Assist warning lam p..4 87
J Brake system warning lamp (red)... 486
J Brake system warning lamp (yel-
low)....................................................... 485
ÿ Coolant warning lamp (red)........... 481
ÿ Coolant warning lamp (yellow).......4 83
! Electric parking brake indicator
lamp (red).............................................. 485
# Electrical fault warning lamp
...................................................... 480, 484
; Engine diagnosis warning lamp...... 483
å ESP®
OFF warning lam p................ 489
÷ ESP®
wa rning lamp 0ashes........... 488
÷ ESP®
wa rning lamp lights up......... 489
æ Fuelreser vewarning lamp lights
up.......................................................... 484
Ù Powe r steering warning lamp
(red)...................................................... 480 Index
525 525