2012 MERCEDES-BENZ A-CLASS HATCHBACK climate control

Index
....................................................... 4Introduction
......................................... 21 At a glance
........................................... 27 Safety
................................................... 39 Opening and closing
...........................73 Seats, steering wheel and mirrors
....91 Lights and windscreen wipers
.........103 Climate control
................................. 121 Driving and parking
..........................141 On-board computer and displays
....207 Stowing and features
.......................267 Maintenance and care
......................283 Breakdown assistance
.....................297 Wheels and tyres
.............................. 317 Technical data
................................... 335 Contents
3

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

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

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

Q
Qualified specialist workshop ........... 24R
RACE START (AMG vehicles) .............181
RACETIMER (on-board computer) .... 226
Radar sensor system
Activating/deactivating ................. 223
Country overview ........................... 350
Display message ............................ 246
Radio
Selecting a station ......................... 214
see separate operating instructions
Rain closing feature (panorama
sliding sunroof) ................................... 88
Reading lamp ..................................... 111
Rear bench seat
Folding the backrest forwards/
back ............................................... 272
Rear compartment
Setting the air vents ..................... .140
Rear foglamp
Changing bulbs .............................. 115
Display message ............................ 241
Switching on/off ........................... 106
Rear lamps
Changing bulbs .............................. 115
see Lights
Rear shelf .......................................... .273
Rear window heating
Problem (fault) ............................... 132
Switching on/off ........................... 131
Rear window wiper
Replacing the wiper blade .............. 118
Switching on/off ........................... 117
Rear-compartment seat belt sta-
tus indicator ........................................ 49
Rear-view mirror
Anti-dazzle mode (automatic) ....... .100
Dipping (manual) .............................. 98
Refuelling
Fuel gauge ....................................... 30
Important safety notes .................. 159
Notes for AMG vehicles ................. 340
Refuelling process ......................... 160
see Fuel Remote control
Auxiliary heating/ventilation .......... 135
Changing the batteries (auxiliary
heating) ......................................... 136
Replacing bulbs
Important safety notes .................. 112
Overview of bulb type s.................. 112
Removing/replacing the cover
(front wheel arch) .......................... 113
Replacing the battery (auxiliary
heating remote control) .................... 136
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 245
Warning lamp ................................. 264
Residual heat (climate control) ........ 133
Restraint system
see SRS (Supplemental Restraint
System)
Rev counter ........................................ 208
Reverse gear
Engaging (manual transmission) .... 151
Reverse gear (selector lever) ........... 153
Reversing camera
Cleaning instructions ..................... 294
Function/note s............................. 191
Switching on/of f........................... 191
Reversing feature
Panorama sliding sunroof ................ 87
Roller sunblinds ............................... 88
Side windows ................................... 83
Reversing lamp
Changing bulbs .............................. 115
Reversing lamps
Display message ............................ 241
Roller sunblind
Opening/closing .............................. 89
Panorama sliding sunroof ................ 88
Roof carrier ........................................ 275
Roof lining and carpets (cleaning
instructions) ...................................... 296
Roof load (maximum) ........................ 346
Route (navigation)
see Route guidance (navigation)
Route guidance (navigation) ............ 213 Index
15

Temperature
Coolant .......................................... 208
Coolant (on-board computer) ......... 226
Engine oil (on-board computer) ...... 226
Outside temperature ...................... 209
Setting (climate control) ................ 128
TEMPOMAT
Function/note s............................. 168
Theft-deterrent system
ATA (Anti-Theft Alarm system) ......... 69
Immobiliser ...................................... 69
Through-loading ................................ 271
Time
see Separate Owner's manual
Timing (RACETIMER) ......................... 226
TIREFIT kit .......................................... 301
Top Tether ............................................ 54
Tow-away protection .......................... 70
Tow-starting
Emergency engine starting ............ 314
Fitting the towing eye .................... 311
Important safety notes .................. 310
Removing the towing eye ............... 312
Towing
Important safety notes .................. 310
Towing a trailer
Active Parking Assist ..................... 190
Axle load, permissibl e.................... 349
Bulb failure indicator for LED
lamps ............................................. 206
ESP® (Electronic Stability Pro-
gram) ............................................... 68
Pulling away with a traile r.............. 145
Trailer tow hitch display message .. 255
Towing away
Fitting the towing eye .................... 311
Removing the towing eye ............... 312
With both axles on the ground ....... 312
With front axle raised ..................... 312
Trailer coupling
see Towing a trailer
Trailer towing
7-pin connecto r............................. 206
Blind Spot Assist ............................ 199
Cleaning the trailer tow hitch ......... 294
Coupling up a traile r...................... 204
Decoupling a trailer ....................... 204 Driving tips .................................... 201
Folding in the ball coupling ............ 205
Folding out the ball coupling .......... 203
Important safety notes .................. 201
Lights display message .................. 239
Mounting dimensions .................... 348
Parktronic ...................................... 185
Power supply ................................. 205
Trailer load s................................... 349
Transmission
see Automatic transmission
see Manual transmission
Transmission position display
(DIRECT SELECT lever) ...................... 152
Transporting the vehicle .................. 313
Trim pieces (cleaning instruc-
tions) .................................................. 295
Trip computer (on-board com-
puter) .................................................. 211
Trip meter
Calling up ....................................... 211
Resetting (on-board computer) ...... 212
Turn signals
Changing bulbs (front) ................... 114
Changing bulbs (rear) .................... 115
Switching on/of f........................... 107
TV
Operating (on-board computer) ..... 215
see Separate operating instructions
Two-way radio
Frequencies ................................... 336
Installation ..................................... 336
Transmission output (maximum) .... 336
Type identification plate
see Vehicle identification plate
Tyre pressure
Display message ............................ 251
Not reached (TIREFIT) .................... 303
Reached (TIREFIT) .......................... 303
Recommended ............................... 321
Tyre pressure loss warning
Important safety notes .................. 323
Restarting ...................................... 323
Tyres
Changing a whee l.......................... 324
Checking ........................................ 319
Direction of rotation ...................... 324
Display message ............................ 251 18
Index

Cockpit
Function Page
:
Steering wheel gearshift
paddles
156
;
Combination switch 107
=
Instrument cluster 30
?
Horn
A
DIRECT SELECT lever 151
B
PARKTRONIC warning dis-
play
182
C
Overhead control panel 36
D
Climate control systems 122 Function Page
E
Ignition lock 143
F
Adjusting the steering
wheel
98
G
Cruise control lever 169
H
Electric parking brake 163
I
Light switch 105
J
Diagnostics connection 23
K
Opening the bonnet 28528
CockpitAt a glance

Function Page
:
Overhead control panel 36
;
PARKTRONIC warning dis-
play 182
=
Combination switch 107
?
Instrument cluster 30
A
Horn
B
DIRECT SELECT lever 151
C
Steering wheel gearshift
paddles
156
D
Light switch 105 Function Page
E
Electric parking brake 163
F
Opening the bonnet 285
G
Diagnostics connection 23
H
Ignition lock 143
I
Adjusting the steering
wheel
98
J
Cruise control lever 169
K
Climate control systems 122Cockpit
29At a glance