2012 MERCEDES-BENZ A-CLASS HATCHBACK engine

1, 2, 3 ...
4ETS see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent all-wheel
drive)
Display message ............................ 254
4MATIC (permanent four-wheel
drive) .................................................. 182
12 V socket
see Sockets A
ABS (Anti-lock Braking System) Display message ............................ 230
Function/notes ................................ 61
Important safety notes .................... 61
Warning lamp .................................2 58
Activating/deactivating air-recir-
culation mode ................................... .132
Activating/deactivating cooling
with air dehumidification ................. 126
Active light function ......................... 108
Active Parking Assist
Cancelling ...................................... 190
Detecting parking spaces .............. 187
Display message ............................ 248
Exiting a parking space .................. 189
Function/notes ............................ .187
Important safety notes .................. 186
Parking .......................................... 188
Towing a trailer .............................. 190
ADAPTIVE BRAKE ................................. 69
Adaptive Brake Assist
Display message ............................ 237
Function/notes ................................ 63
Adaptive brake lights .......................... 64
Adaptive Highbeam Assist
Display message ............................ 243
Function/notes ............................ .109
Adaptive Main-beam Assist
Switching on/off (on-board com-
puter) ............................................. 222
Additional speedometer ................... 220
Additives (engine oil) ........................ 344
Adjusting the headlamp range ......... 107Air filter (white display message)
.... 245
Air vents
Important safety notes .................. 139
Rear ............................................... 140
Setting .......................................... .139
Setting the centre air vents ........... 139
Setting the side air vents .............. .140
Air vents
see Climate control
Air-conditioning system
see Climate control
Airbags
Front airbag (driver, front
passenger) ....................................... 43
Important safety guidelines ............. 42
Kneebag .......................................... .44
Sidebag ............................................ 44
Triggering ......................................... 41
Windowba g...................................... 45
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 222
AMG
Menu (on-board computer) ............ 226
Performance Seat ............................ 97
Anti-glare film .................................... 281
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ....................................... 167
Ashtray ............................................... 277
Assistance display (on-board com-
puter) .................................................. 217
Assistance menu (on-board com-
puter) .................................................. 217
ASSYST PLUS
Displaying a service message ........ 290
Hiding a service message .............. 289
Notes ............................................. 289
Resetting the service interval dis-
play ................................................ 290
Service message ............................ 289
Special service requirements ......... 290 4
Index

ATA (Anti-Theft Alarm system)
Activating/deactivating .................. .69
Function ........................................... 69
Interior motion senso r..................... 70
Switching off the alarm .................... 69
Tow-away protection ........................ 70
ATTENTION ASSIST
Activating/deactivating ................. 219
Display message ............................ 245
Function/note s............................. 195
Audio menu (on-board computer) .... 214
AUTO lights
Display message ............................ 242
see Lights
Automatic engine start (ECO start/
stop function) .................................... 147
Automatic engine switch-off (ECO
start/stop function) .......................... 146
Automatic headlamp mode .............. 105
Automatic transmission
Accelerator pedal position ............. 154
Automatic drive program ............... 156
Changing gear ............................... 154
DIRECT SELECT lever ..................... 151
Display message ............................ 252
Drive program display .................... 152
Driving tips .................................... 154
Emergency running mode .............. 159
Engaging drive position .................. 153
Engaging neutral ............................ 153
Engaging park position (AMG vehi-
cles) ............................................... 153
Engaging reverse gear ................... 153
Engaging the park position ............ 152
Holding the vehicle stationary on
uphill gradients .............................. 154
Kickdown ....................................... 154
Manual drive progra m.................... 156
Overview ........................................ 151
Problem (fault) ............................... 159
Program selector button ................ 155
Pulling away ................................... 144
Selector lever ................................ 153
Starting the engine ........................ 144
Steering wheel gearshift paddle s... 156
Trailer towing ................................. 155
Transmission position dis-
play ........................................ 152, 153 Transmission positions .................. 153
Automatic transmission emer-
gency running mode ......................... 159
Auxiliary heating
Activating/deactivating ................. 134
Activating/deactivating (on the
centre console ).............................. 135
Display message ............................ 255
Important safety notes .................. 134
Problem (display message) ............ 138
Remote control .............................. 135
Setting ........................................... 224
Setting the departure time ............. 136
Auxiliary ventilation
Activating/deactivating ................. 134
Activating/deactivating (on the
centre console ).............................. 135
Problem (display message) ............ 138
Remote control .............................. 135
Axle load, permissible (trailer tow-
ing) ...................................................... 349 B
Bag hook ............................................ 273
Ball coupling
Folding in ....................................... 205
Folding out ..................................... 203
BAS (Brake Assist System) ................. 62
Battery (key)
Checking .......................................... 76
Important safety notes .................... 76
Replacing ......................................... 76
Battery (vehicle)
Charging ........................................ 306
Display message ............................ 244
Important safety notes .................. 304
Jump starting ................................. 308
Belt force limiter
Activation ......................................... 49
Function ........................................... 49
Belt tensioner
Activation ......................................... 41
Function ........................................... 49
Blind Spot Assist
Activating/deactivating ................. 219
Display message ............................ 247
Notes/function .............................. 198 Index
5

Children
In the vehicle .................................. .50
Restraint systems ............................ 50
Cigarette lighter ................................ 278
Cleaning
Trailer tow hitch ............................ .294
Climate control
Auxiliary heating/ventilatio n ..........134
Controlling automatically .............. .128
Convenience opening/closing
(air-recirculation mode) ................. 132
Cooling with air dehumidification .. 126
Demisting the windows .................. 130
Demisting the windscreen ............. 130
Important safety notes .................. 122
Indicator lamp ................................ 128
Notes on using THERMATIC auto-
matic climate control ..................... 123
Notes on using THERMOTRONIC
automatic climate control .............. 125
Overview of systems ..................... .122
Problem with the rear window
heating .......................................... 132
Problems with cooling with air
dehumidification ............................ 128
Setting the air distribution ............. 129
Setting the air vents ..................... .139
Setting the airflow ......................... 129
Setting the temperature ................ 128
Switching air-recirculation mode
on/off ............................................ 132
Switching on/off ........................... 126
Switching residual heat on/off ...... 133
Switching the rear window heat-
ing on/off ...................................... 131
Switching the ZONE function on/
off ................................................. .129
THERMATIC automatic climate
control .......................................... .123
THERMOTRONIC (2-zone) auto-
matic climate control ..................... 125
Cockpit
Overview .......................................... 28
see Instrument cluster
COLLISION PREVENTION ASSIST
Activating/deactivating the dis-
tance warning function .................. 218
Display message ............................ 230 Operation/notes .............................. 62
COMAND Online
see separate operating instructions
Combination switch .......................... 107
Consumption statistics (on-board
computer) .......................................... 211
Convenience closing feature .............. 85
Convenience opening feature ............ 84
Convenience opening/closing (air-
recirculation mode) ........................... 132
Coolant (engine)
Checking the level ......................... 288
Display message ............................ 243
Important safety notes .................. 344
Temperature (on-board com-
puter) ............................................. 226
Temperature gauge ........................ 208
Warning lamp ................................. 264
Cooling
see Climate control
Cornering lamps
Changing bulbs .............................. 114
Cornering light function
Display message ............................ 239
Function/notes ............................ .109
Crash-responsive emergency light-
ing ....................................................... 111
Cruise control
Activation conditions ..................... 169
Cruise control lever ....................... 169
Deactivating ................................... 170
Display message ............................ 250
Driving system ............................... 168
Important safety notes .................. 168
LIM indicator lamp ......................... 169
Selecting ........................................ 169
Setting a speed .............................. 170
Storing and maintaining current
speed ............................................. 169
Cup holder
Centre console .............................. 276
Important safety notes .................. 275
Rear compartment ......................... 276 D
Dashboard see Instrument cluster Index
7

Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Daytime driving lights
Display message ............................ 242
Switching on/off (on-board com-
puter) ............................................ .221
Switching on/off (switch) .............. 105
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 23
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 222
Interior lighting .............................. 223
Diagnostics connection ......................23
Diesel .................................................. 341
Digital speedometer .........................212
Dipped-beam headlamps
Changing bulbs .............................. 113
Display message ............................ 239
Setting for driving abroad (sym-
metrical) ........................................ 104
Setting for driving on the right/
left ................................................. 221
Switching on/off ........................... 105
DIRECT SELECT lever
see Automatic transmission
Display (cleaning instructions) ........295
Display message
Driving systems ............................ .245
Display messages
ASSYST PLUS ................................ 289
Calling up (on-board computer) ..... 229
Engine ............................................ 243
General information ....................... 229
Hiding (on-board computer) ........... 229
Key ................................................ 256
Lights ............................................. 239
Safety systems .............................. 230
Tyres .............................................. 251
Vehicle .......................................... .252
Distance recorder
see Trip meter
Distance warning function
Activating/deactivating ................. 218 Function/notes ................................ 62
Warning lamp ................................. 266
DISTRONIC PLUS
Activation conditions ..................... 175
Cruise control lever ....................... 174
Deactivating ................................... 177
Display message ............................ 249
Displays in the multifunction dis-
pla y................................................ 175
Driving tips .................................... 178
Function/note s............................. 174
Important safety notes .................. 173
Selecting ........................................ 175
Setting the specified minimum
distance ......................................... 177
Warning lamp ................................. 266
Door
Automatic locking (on-board com-
puter) ............................................. 223
Automatic locking (switch) ............... 81
Central locking/unlocking (key) ...... 75
Control panel ................................... 37
Display message ............................ 254
Emergency locking ........................... 81
Emergency unlocking ....................... 81
Important safety notes .................... 79
Opening (from the inside) ................ 80
Drive program
Automatic ...................................... 156
Display ........................................... 153
Display (DIRECT SELECT lever) ...... 152
Manual ........................................... 156
Driver's door
see Door
Driving abroad
Service24h .................................... 290
Symmetrical dipped beam ............. 104
Driving on flooded roads .................. 167
Driving safety systems
ABS (Anti-lock Braking System) ....... 61
ADAPTIVE BRAK E............................. 69
Adaptive Brake Assist ...................... 63
Adaptive brake lights ....................... 64
BAS (Brake Assist System) .............. 62
COLLISION PREVENTION ASSIST .... 62
Distance warning function ............... 62
Electronic Brake-force Distribu-
tion .................................................. 68 8
Index

ESP® (Electronic Stability Pro-
gram) ......................................... 65, 66
ETS/4ETS (Electronic Traction
System) ........................................... 65
Important safety guidelines ............ .61
Overview .......................................... 61
STEER CONTROL ............................. 69
Driving systems
Active Parking Assist ..................... 186
ATTENTION ASSIST ........................ 195
Blind Spot Assist ............................1 97
Cruise control ................................ 168
Display message ............................ 245
Distronic Plus ................................ 173
HOLD function ............................... 179
Lane Keeping Assist ..................... .199
Lane package ................................ 197
PARKTRONIC ................................. 182
RACE START (AMG vehicles) .......... 181
Reversing camera .......................... 191
Speed Limit Assist ......................... 196
SPEEDTRONIC ............................... 171
Driving tips
Aquaplaning ................................... 167
Automatic transmission ................. 154
Brakes .......................................... .166
DISTRONIC PLUS ........................... 178
Downhill gradient ........................... 166
Driving abroad ............................... 104
Driving in winter ............................ .167
Driving on flooded roads ................ 167
Driving on wet roads ..................... .167
General .......................................... 165
Icy road surfaces ........................... 168
Limited braking efficiency on sal-
ted roads ....................................... 167
New brake pads/linings ................ 167
Running-in tips ............................... 142
Snow chains .................................. 321
Symmetrical dipped bea m............. 104
Towing a trailer .............................. 201
Wet road surface ........................... 166
DVD audio (on-board computer) ...... 215 E
EASY-VARIO-PLUS system Luggage compartment enlarge-
ment .............................................. 271
EBD (electronic brake force distri-
bution)
Display message ............................ 232
Function/note s................................ 68
ECO display
Function/note s............................. 165
On-board computer ....................... 212
ECO start/stop function
Automatic engine start .................. 147
Automatic engine switch-off .......... 146
Deactivating/activating ................. 147
General information ....................... 146
Important safety notes .................. 146
Introduction ................................... 145
Electrical fuses
see Fuses
Electronic Stability Program
see ESP® (Electronic Stability Program)
Emergency key
Unlocking the driver's door .............. 81
Emergency key element
Function/note s................................ 75
Locking vehicle ................................ 81
Emergency release
Driver's door .................................... 81
Emergency spare wheel
General notes ................................ 332
Important safety notes .................. 332
Removing ....................................... 332
Technical data ............................... 333
Emergency unlocking
Tailgate ............................................ 83
Vehicle ............................................. 81
Engine
Display message ............................ 243
ECO start/stop function ................ 145
Engine number ............................... 338
Jump-starting ................................. 308
Running irregularly ......................... 149
Starting problems .......................... 149
Starting the engine with the key .... 144
Stopping ........................................ 162
Tow-starting (vehicle) ..................... 314 Index
9

Warning lamp (engine diagnos-
tics) ............................................... 264
Engine electronics
Notes ............................................. 336
Problem (fault) ...............................1 49
Engine oil
Additives ........................................ 344
Checking the oil level ..................... 286
Checking the oil level using the
dipstick .......................................... 287
Display message ............................ 245
Filling capacity ............................... 343
Notes about oil grades ................... 343
Notes on oil level/consumption .... 286
Temperature (on-board com-
puter) ............................................. 226
Topping up ..................................... 287
Viscosity ........................................ 344
Environmental protection
Returning an end-of-life vehicle ....... 21
ESP® (Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 226
Deactivating/activating (AMG
vehicles) .......................................... 66
Deactivating/activating (except
AMG vehicles) ................................ 218
Deactivating/activating (notes;
except AMG vehicles) ..................... .67
Display message ............................ 230
ETS/4ETS ........................................ 65
Function/note s......................... 65, 66
Important safety guidelines ............. 65
Trailer stabilisation .......................... 68
Warning lamp ................................. 260
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 65
Exhaust pipe (cleaning instruc-
tions) .................................................. 294
Exterior lighting
Settings options ............................. 105
see Lights
Exterior mirrors
Adjusting ......................................... 99
Anti-dazzle mode (automatic) ........ 100
Folding in when locking (on-board computer) ...................................... 225
Folding in/out (automatically )....... 100 Folding in/out (electrically) ............. 99
Out of position (troubleshooting) ... 100
Parking position ............................. 100
Resetting ......................................... 99
Storing settings (memory func-
tion) ............................................... 101
F
Fault message see Display messages
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 299
First-aid kit ......................................... 298
Fitting a wheel
Fitting a wheel ............................... 328
Lowering the vehicle ...................... 329
Preparing the vehicle ..................... 325
Raising the vehicle ......................... 326
Removing a whee l.......................... 328
Securing the vehicle against roll-
ing away ........................................ 325
Flat tyre
MOExtended tyre s......................... 300
Preparing the vehicle ..................... 300
TIREFIT kit ...................................... 301
see Emergency spare wheel
Floormat ............................................. 281
Foglamps
Extended rang e.............................. 109
Switching on/of f........................... 106
Frequencies
Mobile phone ................................. 336
Two-way radio ................................ 336
Front foglamps
Display message ............................ 241
Fuel
Additives ........................................ 341
Consumption information .............. 342
Consumption statistics .................. 211
Displaying the current consump-
tion ................................................ 212
Displaying the range ...................... 212
Fuel gaug e....................................... 30
Grade (petrol) ................................ 340
Important safety notes .................. 339
Notes for AMG vehicles ................. 340 10
Index

Problem (malfunction) ...................1
61
Quality (diesel )............................... 341
Refuelling ....................................... 159
Tank content/reserve fue l............. 339
Fuel filler flap
Opening/closing ............................ 160
Fuel filter (white display message) .. 245
Fuel level
Calling up the range (on-board
computer) ...................................... 212
Gaug e.............................................. 30
Fuel reserve
see Fuel
Fuel tank
Capacity ........................................ 339
Problem (malfunction) ................... 161
Fuses
Allocation chart ............................. 315
Before changing ............................. 314
Fuse box in the engine compart-
ment .............................................. 315
Fuse box in the front-passenger
footwell .......................................... 315
Important safety notes .................. 314 G
Gear indicator (on-board com-
puter) .................................................. 226
Gear or selector lever (cleaning
instructions) ...................................... 295
Gearshift program
SETUP (on-board computer) .......... 226
Genuine Mercedes-Benz parts ........... 21
Glove compartment .......................... 269H
Handbrake see Parking brake
Hazard warning lamps ...................... 108
Display message ............................ 256
Head restraints
Adjusting ......................................... 94
Adjusting (electrically) ..................... 95
Adjusting (manually) ........................ 95
Adjusting (rear) ................................ 96
Fitting/removing (rear) .................... 96 Headlamp
Cleaning system (function) ............ 108
Cleaning system (notes) ................ 345
Headlamps
Misting up ...................................... 110
Topping up the cleaning system .... 289
see Automatic headlamp mode
Heating
see Climate control
High-pressure cleaners .................... 291
Hill start assist .................................. 145
HOLD function
Deactivating ................................... 180
Display message ............................ 246
Function/note s............................. 180 I
Ignition lock see Key positions
Immobiliser .......................................... 69
Indicator and warning lamps
Coolant .......................................... 264
DISTRONIC PLUS ........................... 266
Engine diagnostics ......................... 264
SPORT handling mode ................... 261
Indicator lamps
Display message ............................ 240
see Warning and indicator lamps
Inspection
see ASSYST PLUS
Instrument cluster
Overview .......................................... 30
Setting s......................................... 220
Warning and indicator lamps ........... 32
Instrument cluster lighting .............. 208
Intelligent Light System
Activating/deactivating ................. 221
Display message ............................ 242
Overview ........................................ 108
Setting the dipped-beam head-
lamps for driving on the right/left .. 221
Interior lighting ................................. 111
Automatic control system .............. 111
Delayed switch-off (on-board
computer) ...................................... 223
Emergency lighting ........................ 111
Manual control ............................... 111 Index
11

Overview ........................................1
11
Reading lamp ................................. 111
Setting the ambient lighting
brightness (on-board computer) .... 222
Interior motion sensor ........................ 70
ISOFIX child seat securing system .... 53J
Jack Storage location ............................ 299
Using ............................................. 326
Jump starting (engine) ......................308 K
Key Changing the battery ....................... 76
Checking the battery ....................... 76
Convenience closing feature ............ 85
Convenience opening feature .......... 84
Display message ............................ 256
Door central locking/unlocking ....... 75
Emergency key element ................... 75
Important safety notes .................... 74
Loss ................................................. 78
Modifying the programming ............. 75
Positions (ignition lock) ................. 143
Problem (malfunction) ..................... 78
Starting the engine ........................ 144
Key positions (ignition lock) ............ 143
Kickdown
Driving tips ................................... .154
Manual drive program .................... 158
Kneebag ............................................... 44 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 219
Display message ............................ 247
Function/informatio n.................... 199
Lane package ..................................... 197
Lap time (RACETIMER) ...................... 226
Lashing eyelets ................................. 273
Licence plate lamp (display mes-
sage) ................................................... 241 Light sensor (display message)
....... 242
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 221
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 223
Active light function ....................... 108
Automatic headlamp mod e............ 105
Cornering light function ................. 109
Dipped-beam headlamp s............... 105
Display message ............................ 239
Driving abroad ............................... 104
Foglamps ....................................... 106
Foglamps (extended range) ........... 109
Hazard warning lamps ................... 108
Headlamp flashe r........................... 108
Headlamp rang e............................ 107
Light switch ................................... 105
Main-beam headlamp s................... 107
Motorway mod e............................. 109
Parking lamps ................................ 106
Rear foglamp ................................. 106
Setting the ambient lighting
brightness (on-board computer) .... 222
Side lamps ..................................... 106
Switching Adaptive Highbeam
Assist on/of f................................. 222
Switching the daytime driving
lights on/off (on-board com-
puter) ............................................. 221
Switching the daytime driving
lights on/off (switch) ..................... 105
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 222
Switching the surround lighting
on/off (on-board computer) .......... 222
Turn signals ................................... 107
see Interior lighting
see Replacing bulbs
LIM indicator lamp
Cruise control ................................ 169
DISTRONIC PLUS ........................... 174
Variable SPEEDTRONIC ................. 171
Limiting the speed
see SPEEDTRONIC 12
Index