MERCEDES-BENZ A-CLASS SALOON 2022 Owners Manual

Warning/indicator lamp Possible causes/consequences and
P Solutions
w
T yre pressure monitoring
system warning lamp lights
up * The yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has detected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due t
o insuPcient tyre pressure
= The tyr
es can burst.
= The tyres can wear excessively and/or unevenly.
= The driving characteristics as well as the steering and braking may be greatly impaired.
You could then lose control of the vehicle. 
Observe the recommended tyre pressures. 
Adjust the tyre pressure if necessary. 
Stop the vehicle in accordance with the tr
aPc conditions. 
Check the tyre pressure and the tyres. 488
Display messages and warning/indicator lamps

1, 2, 3 ...
360° camer a
Care...................................................... 341
Function................................................ 254
Switching automatic mode on/oM
(reversing camera)................................. 257 A
A/C function A

ctivating/deactivating (operating
unit)....................................................... 149
MBUX.................................................... 149
ABS , Anti-lock braking system...................... 218
Acceleration Kickdown............................................... 182
Accident ERA-GLONASS test mode...................... 320
Accident, emergency call ............................. 318
Acoustic locking veriNcation signal, acti-
vating/deactivating........................................ 84
Acoustic presence indicator , Sound gen-
erator.......................................................... 157 Acoustic Vehicle Indication
, Sound g
ener-
ator.............................................................. 157
Active Blind Spot Assist Brake application................................... 247
Exit warning........................................... 246
Function................................................ 246
Trailer operation..................................... 247
Active bonnet, Pedestrian protection............ 330
Active bonnet (pedestrian protection) Resetting............................................... 330
Active Brake Assist Function................................................ 237
Setting................................................... 242
Active Distance Assist DISTRONIC Activate/deactivate variable limiter........ 231
Activating/deactivating.......................... 231
Active Emergency Stop Assist................ 237
Calling up a speed................................. 231
Function................................................ 228
Increasing/decreasing the speed........... 231
Route-based speed adaptation............... 233
Storing a speed...................................... 231
Active Lane Keeping Assist Activating/deactivating.......................... 251 Function................................................ 248
Se tting the sensitivity............................. 251
Trailer operation..................................... 248
Active light function ..................................... 134
Active Parking Assist Exiting a parking space.......................... 264
Function................................................ 261
Parking.................................................. 263
Active Service System PLUS,
ASSYST PLUS.............................................. 328
Active Speed Limit Assist ............................. 232
Active Steering Assist Activating/deactivating.......................... 236
Active Emergency Stop Assist................ 237
Function................................................ 235
Adaptive brake lights .................................... 223
Adaptive cruise control , Active Distance
Assist DISTRONIC........................................ 233
Adaptive Highbeam Assist , High beam
Activating/deactivating.......................... 137
Function................................................ 136
Adaptive Highbeam Assist Plus Function................................................ 137 Index
489

Switching on/oM
.................................... 138
AdBlue n
Additives................................................ 395
Capacity................................................ 396
Notes..................................................... 188
Purity..................................................... 395
Topping up............................................. 188
Additional door lock ....................................... 87
Additives AdBlue n
......................................... 188, 395
Engine oil............................................... 396
Fuel....................................................... 393
Aser-sales service, ASSYST PLUS................. 328
Air conditioning menu Air distribution....................................... 150
Calling up.............................................. 149
Climate control...................................... 149
Stationary heater/ventilation................. 155
Air distribution MBUX multimedia system....................... 150
Setting................................................... 148
Air inlet ........................................................ 337
Air pressure ................................................. 369 Air vents
Se tting................................................... 155
Air/water duct............................................. 337
Airbag, Occupant safety Automatic front passenger airbag shut
oM............................................................ 57 Deployment............................................. 48
Front airbag............................................. 53
Overview.................................................. 53
PASSENGER AIR BAG indicator lamps...... 58
Protection................................................ 54
Reduced protection.................................. 56
Warning lamp........................................... 48
AirOow Setting................................................... 148
Alarm system , ATA....................................... 102
All-wheel drive, 4MATIC................................ 183
Ambient lighting ........................................... 139
Animals, Pets in the vehicle............................ 82
Anti-lock braking system , ABS...................... 218
Anti-thes alarm system , ATA......................... 102
Anti-thes protection, ATA
Additional door lock................................. 87 Immobiliser............................................ 102
Anticipat ory operating-mode strategy ,
Route-based................................................. 173
Approval numbers ........................................ 388
Apps Mercedes me calls................................. 309
Mercedes me connect........................... 313
Assembly licence plate, front .......................... 29
Assistance system , Driving safety system..... 217
ASSYST PLUS Battery disconnection periods................ 329
Service interval display.......................... 328
Service requirements............................. 328
ATA, Anti-thes protection
Deactivating the alarm........................... 103
Function................................................ 102
Interior protection.................................. 104
Tow-away protection.............................. 103
ATTENTION ASSIST Function................................................ 224
Setting................................................... 225
Attention assistant , ATTENTION ASSIST........ 224
Authorised workshop ...................................... 41490
Index

Automatic car wash
...................................... 337
Automatic car wash mode .................... 337, 339
Automatic climate control ............................ 149
Automatic distance control , Active Dis-
tance Assist DISTRONIC............................... 228
Automatic driving lights................................ 132
Automatic emergency call , Mercedes-
Benz emergency call system......................... 318
Automatic engine start/stop , ECO start/
stop function................................................ 167
Automatic front passenger airbag shutoM
Function.................................................. 57
PASSENGER AIR BAG indicator lamps...... 58
Automatic measures aser an accident ,
Occupant safety............................................. 61
Automatic mirror folding function................. 147
Automatic transmission Changing gear........................................ 178
DIRECT SELECT lever............................. 178
Drive programs...................................... 173
DYNAMIC SELECT switch....................... 173
Engaging drive position.......................... 180
Engaging neutral.................................... 179 Engaging reverse gear............................ 179
F aulty gear shis..................................... 181
Kickdown............................................... 182
Manual shising ...................................... 181
Selecting park position........................... 180
Steering wheel gearshis paddles............ 181
Transmission position display................. 178
Transmission positions........................... 178
Autonomous braking .................................... 237
AVAS , Acoustic vehicle alerting system......... 157
Axle load Trailer operation..................................... 404 B
Ball nec
k
Folding out/in........................................ 268
Trailer coupling...................................... 269
BAS , Brake Assist System............................. 218
Battery (12 V battery) Notes..................................................... 354
Replacing............................................... 358
Starting assistance................................ 355 Battery (high-voltage on-board electrical
sy
stem) ........................................................ 401
Battery (key) .................................................. 85
Battery (starter battery) Charging via Remote Online................... 162
Battery operation , Plug-in hybrid operation... 157
Belt, Seat belt................................................ 49
Bicycle rack Load capacity........................................ 404
Trailer operation..................................... 271
Blind Spot Assist, Active Blind Spot Assist Activating/deactivating.......................... 248
Function................................................ 246
BlueTec AdBlue n
................................................. 188
Bluetooth n
................................................... 308
Bonnet Active bonnet......................................... 330
Opening/closing.................................... 331
Resetting (active bonnet)........................ 330
Boot lid Closing.................................................... 92 Index
491

HANDS-FREE ACCESS............................. 93
Opening ................................................... 91
Brake Assist Active Brake Assist................................. 237
Brake Assist System............................... 218
Brake Assist System , BAS............................. 218
Brake Nttings ................................................ 163
Brake Ouid .................................................... 398
Brake force distribution , EBD........................ 221
Brake lamps Adaptive brake lights.............................. 223
Brakes ABS (Anti-lock Braking System).............. 218
Active Brake Assist................................. 237
Adaptive brake lights.............................. 223
BAS (Brake Assist System)..................... 218
Driving tips............................................ 164
EBD (Electronic Brakeforce Distribu-
tion)....................................................... 221
HOLD function....................................... 221
Limited braking eMect (salt-treated
roads).................................................... 164
New/replaced brakepads/brake disks... 163
Post-collision brake.................................. 61 Recuperation......................................... 169
R
unning-in notes.................................... 163
Braking assistance Brake Assist System............................... 218
Breakdown Flat tyre................................................. 347
Overview of aids...................................... 20
Tow-starting........................................... 364
Towing away.......................................... 361
Transporting the vehicle......................... 362
Wheel change........................................ 378 C
Calls Mer

cedes me......................................... 308
Camera 360° Camera......................................... 254
Cleaning................................................ 341
Information............................................ 216
Reversing camera.................................. 251
Selecting the view.................................. 257
Car key .......................................................... 83
Car wash ...................................................... 337 Car-to-X communication
Hazar
d warnings.................................... 302
Care 360° camera......................................... 341
Air/water duct....................................... 337
Automatic car wash............................... 337
Car parts............................................... 341
Decorative foil........................................ 340
Display................................................... 343
Exterior lighting...................................... 341
Head-up display..................................... 343
High-pressure cleaner............................ 339
Paint...................................................... 340
Plastic trim............................................ 343
Real wood/trim elements...................... 343
Roof lining............................................. 343
Trailer hitch............................................ 341
Vehicle interior....................................... 343
Vehicle socket for the high-voltage
battery................................................... 341
Washing by hand.................................... 340
Caring for plastic trim ................................... 343
Caring for real wood ..................................... 343
Caring for rims............................................. 341 492
Index

Caring for the steering wheel
........................ 343
Caring for trim elements............................... 343
Central locking system Button..................................................... 88
Key.......................................................... 84
Changing bulbs Fitting/removing cover (front wheel
arch)...................................................... 141
Overview................................................ 141
Changing illuminants Notes..................................................... 140
Charge level display ..................................... 208
Charge level/charge display ......................... 208
Charging Charge level display............................... 208
Charging cable control panel.................. 197
Charging station, mode 3....................... 194
Ending the charging process (alternat-
ing current, mode 2/3).......................... 202
Ending the charging process (direct
current, mode 4).................................... 206
Indicator lamps on vehicle socket........... 198
Mains socket, mode 2............................ 193 Notes on charging the high-voltage
batt ery................................................... 190
On-board electrical system battery
(12 V).................................................... 357
Rapid charging station, mode 4.............. 195
Setting the charging process.................. 295
Setting the maximum permissible
charging current (mains socket)............. 196
Starting the charging process (alter-
nating current, mode 2/3)..................... 199
Starting the charging process (direct
current, mode 4).................................... 204
Stowing the charging cable.................... 190
USB port................................................ 127
Wallbox, mode 3.................................... 194
Charging cable Control panel......................................... 197
Stowing................................................. 190
Checking the coolant level ........................... 335
Child safety lock Rear door................................................. 80
Side window (rear)................................... 81
Child seat Approval categories................................. 67 Basic instructions.................................... 62
F itting ISOFIX/i-Size................................ 71
Front passenger seat............................... 78
Recommendations for child restraint
systems................................................... 66
Risks/dangers......................................... 63
Seats suitable for belt-secured child
restraint systems..................................... 74
Seats suitable for i!

Clean varnish
............................................... 340
Cleaning Air/water duct....................................... 337
Automatic car wash............................... 337
Car parts............................................... 341
Decorative foil........................................ 340
High-pressure cleaner............................ 339
Paint...................................................... 340
Vehicle interior....................................... 343
Vehicle socket for the high-voltage
battery................................................... 341
Cleaning carpets .......................................... 343
Cleaning seat covers .................................... 343
Cleaning the sensors .................................... 341
Climate control A/C function......................................... 149
Activating/deactivating.......................... 149
Activating/deactivating the A/C func-
tion (control panel)................................. 149
Activating/deactivating the synchro-
nisation function (control panel)............. 150
Air vents (front)...................................... 155
Automatic control.................................. 149
Calling up the air conditioning menu....... 149 Demisting the windscreen...................... 148
Demis
ting windows................................ 150
Immediate pre-entry climate control....... 153
Notes..................................................... 148
Pre-entry climate control for depar-
ture time................................................ 152
Pre-entry climate control using the key... 151
Rear air vents......................................... 156
Residual heat......................................... 150
Setting (MBUX multimedia system)......... 149
Setting the air distribution...................... 148
Setting the airOow.................................. 148
Setting the vehicle interior tempera-
ture....................................................... 148
Stationary heater/ventilation................. 154
Switching air-recirculation mode
on/oM ................................................... 150
Switching the rear window heater
on/oM ................................................... 148
Synchronisation function........................ 150
THERMATIC control panel...................... 148
THERMOTRONIC control panel............... 148
Ventilation with comfort opening.............. 96
COC papers , CertiNcate of conformity.......... 386 Cockpit
Dashboar d........................................... 6, 10
CoMee cup symbol , ATTENTION ASSIST........ 224
Collision detection (parked vehicle) Information............................................ 214
Combination switch Lights.................................................... 133
Windscreen wipers................................. 142
Component-speciNc information................... 388
Convenience closing...................................... 97
Convenience opening..................................... 96
Coolant........................................................ 398
Copyright....................................................... 46
Cornering light............................................. 135
Correct use .................................................... 41
Cover, Roller sunblind.................................... 98
Cross traPc (warning) ,
Manoeuvring assistant................................. 266
Cross TraPc Alert, Cross traPc warning....... 266
Crosswind Assist , ESPn
................................ 220 494
Index

Cruise control
activ ating/deactivating.......................... 227
Calling up a speed................................. 227
Function................................................ 225
Requirements:....................................... 227
Setting a speed...................................... 227
Storing a speed...................................... 227 D
Dam
ping adjustment .................................... 251
Dashboard Cockpit................................................ 6, 10
Dashcam Selecting a USB device.......................... 304
Starting/stopping a video recording....... 304
Data processing in the vehicle ........................ 43
Data protection rights .................................... 46
Data storage Data protection rights.............................. 46
Electronic control units............................ 43
Online services........................................ 45
Deactivating the alarm ................................. 103
Dealership ..................................................... 41 Declaration of conformity
Electr
omagnetic compatibility.................. 30
Importer addresses.................................. 37
Jack......................................................... 38
SpeciNc absorption rate........................... 30
TIREFIT kit................................................ 38
Wireless vehicle components................... 30
Decorative foil .............................................. 340
DeNOx agent AdBlue n
................................................. 188
Destination entry ......................................... 299
Detecting inattentiveness,
ATTENTION ASSIST...................................... 224
Diagnostics connection .................................. 39
Diesel Low outside temperatures...................... 393
Notes..................................................... 393
Digital Owner's Manual .................................. 22
DIRECT SELECT lever Automatic transmission.......................... 178
Engaging drive position.......................... 180
Engaging neutral.................................... 179
Engaging park position automatically...... 180 Engaging reverse gear............................ 179
F unction................................................ 178
(earshis recommendation............. 178, 182
Manual gearshising ................................ 181
Selecting park position........................... 180
Display Care...................................................... 343
Home screen......................................... 283
Display (on-board computer) Displays on the instrument display......... 279
Display message Calling up in the on-board computer....... 406
Display messages