cruise control MERCEDES-BENZ A-CLASS HATCHBACK 2012 Owners Manual

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

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

Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 220
Digital ............................................ 212
In the Instrument cluster ................. 30
Segments ...................................... 209
Selecting the unit of measure-
ment ..............................................2 20
see Instrument cluster
SPEEDTRONIC
Deactivating variable ..................... 172
Display message ............................ 250
Function/notes ............................ .171
Important safety notes .................. 171
LIM indicator lamp ......................... 171
Permanent ..................................... 172
Selecting ........................................ 171
Storing the current spee d.............. 172
Variabl e......................................... 171
SPORT handling mode
Activating/deactivating (AMG
vehicles) .......................................... 66
Warning lamp ................................. 261
SRS (Supplemental Restraint Sys-
tem)
Display message ............................ 238
Introduction ..................................... 41
Warning lamp ................................. 263
Warning lamp (function) ................... 41
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 143
STEER CONTROL .................................. 69
Steering (display message) .............. 255
Steering wheel
Adjusting (manually) ........................ 98
Button overview ............................... 33
Buttons (on-board computer) ......... 209
Cleaning ......................................... 295
Gearshift paddle s........................... 156
Important safety notes .................... 98
Steering wheel gearshift paddles .... 156
Stopwatch (RACETIMER) ................... 226
Stowage areas ................................... 269 Stowage compartments
Armrest (front) ............................... 270
Armrest (under) ............................. 270
Centre console .............................. 269
Centre console (rear) ..................... 271
Cup holde r..................................... 275
Glove compartment ....................... 269
Important safety information ......... 269
Luggage net ................................... 271
Spectacles compartment ............... 269
Under driver's seat/front-
passenger sea t.............................. 270
Summer tyres .................................... 320
Sun visor ............................................ 277
Supplemental Restraint System
see SRS (Supplemental Restraint
System)
Surround lighting (on-board com-
puter) .................................................. 222
Switching off the alarm (ATA) ............ 69 T
Tail lamps Display message ............................ 241
see Lights
Tailgate
Display message ............................ 254
Emergency unlocking ....................... 83
Important safety notes .................... 82
Opening dimensions ...................... 346
Opening/closing (from outside) ....... 82
Technical data
Capacities ...................................... 338
Emergency spare whee l................. 333
Information .................................... 336
Trailer load s................................... 349
Tyres/wheels ................................. 329
Vehicle data ................................... 346
Telephone
Accepting a call ............................. 216
Display message ............................ 256
Menu (on-board computer) ............ 215
Number from the phone book ........ 216
Redialling ....................................... 217
Rejecting/ending a call ................. 216
Telephone compartment ................ 270 Index
17

Important safety notes .................. 318
M+S tyres ...................................... 320
MOExtended tyres .........................3
20
Replacing ....................................... 324
Service life ..................................... 319
Storing .......................................... .324
Summer tyres ........................ 168, 320
Tyre size (data) .............................. 329
Tyre tread ...................................... 319
see Flat tyre U
Unladen weight ................................. 346
Unlocking
Emergency unlocking ....................... 81
From inside the vehicle (central
unlocking button) ............................ .80V
Vanity mirror (in sun visor) .............. 277
Variable SPEEDTRONIC
see SPEEDTRONIC
Vehicle
Correct use ...................................... 24
Data acquisition ............................... 25
Electronics ..................................... 336
Equipment ....................................... 22
Implied warranty .............................. 24
Individual settings .......................... 220
Leaving parked up ......................... 164
Locking (in an emergency) ............... 81
Locking (key) ................................... 75
Lowering ........................................ 329
Pulling away ................................... 144
Raising ........................................... 326
Registration ..................................... 24
Securing from rolling away ............ 325
Tow-starting ................................... 310
Towing away .................................. 310
Transporting .................................. 313
Unlocking (in an emergency) ........... 81
Unlocking (key) ................................ 75
Vehicle data ................................... 346
Vehicle data ....................................... 346
Vehicle dimensions ........................... 346
Vehicle emergency locking ................ 81Vehicle identification number
see VIN
Vehicle identification plate .............. 338
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 299
Vehicle weights ................................. 346
Video (DVD) ........................................ 215
Video DVD (on-board computer) ...... 215
VIN ...................................................... 338 W
Warning and indicator lamps ABS ................................................ 258
Brakes ........................................... 258
Distance warning signal ................. 266
ESP® ............................................. 260
ESP® OFF ...................................... 261
Fuel tank ........................................ 264
LIM (cruise control) ........................ 169
LIM (DISTRONIC PLUS) .................. 174
LIM (variable SPEEDTRONIC) ......... 171
Overview .......................................... 32
PASSENGER AIRBAG OFF ................ 52
Reserve fue l................................... 264
Seat belt ........................................ 257
SRS ................................................ 263
Warning triangle ................................ 298
Washer fluid
Display message ............................ 256
Wheel bolt tightening torque ........... 329
Wheel chock ...................................... 325
Wheels
Changing a whee l.......................... 324
Changing/replacing ....................... 324
Checking ........................................ 319
Cleaning ......................................... 292
Cleaning (warning) ......................... 324
Emergency spare wheel ................. 332
Fitting a new wheel ........................ 328
Fitting a wheel ............................... 325
Important safety notes .................. 318
Removing a whee l.......................... 328
Storing ........................................... 324
Tightening torque ........................... 329
Wheel size/tyre size ...................... 329 Index
19

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

Towing a trailer
Trailer towing is not permissible on the fol-
lowing models:
R
A 45 AMG 4MATIC
R Vehicles with the AMG Sports package
X Drive in the middle of the engine speed
range on uphill gradients.
X Depending on the uphill or downhill gradi-
ent, select a lower gear (Y page 166), even
if cruise control, DISTRONIC PLUS, or
SPEEDTRONIC are activated. Program selector button
General notes The program selector button allows you to
choose between drive programs with differ-
ent driving characteristics. Example: program selector button
E
Economy Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gearshifting
X
Press program selector button :repeat-
edly until the letter for the desired gearshift program appears in the multifunction dis-
play.
i The automatic transmission switches to
automatic drive program Eeach time the
engine is started. i
For further information on the automatic
drive program, see (Y page 156).
AMG vehicles C
Controlled
Efficiency Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gearshifting
X
Press program selector button :repeat-
edly until the letter for the desired gearshift program appears in the multifunction dis-
play.
i The automatic transmission switches to
automatic drive program Ceach time the
engine is started.
i For further information on the automatic
drive program, see (Y page 156). Automatic transmission
155Driving and parking Z

dynamic changes in the bars at the start of
a journey. During a prolonged driving time,these changes are smaller. For more
dynamic changes, perform a manual reset.
For further information on the ECO display,
see (Y page 212). Braking
Important safety notes G
WARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
This increases the risk of skidding and having
an accident.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients Change into a lower gear in good time on long
and steep downhill gradients. Take particular note of this when driving a laden vehicle and
when towing a trailer. For vehicles with auto-
matic transmission, you need to have selec-
ted manual drive program M(Ypage 156).
i This also applies if you have activated
cruise control, SPEEDTRONIC or DIS-
TRONIC PLUS.
This will use the braking effect of the engine,
so less braking will be required to prevent the
vehicle from gaining speed. This relieves the
load on the brake system and prevents the
brakes from overheating and wearing too
quickly.
i Briefly depressing the accelerator pedal
on downhill gradients while the manual
drive program Mis temporarily activated
(vehicles with automatic transmission): the
automatic transmission may switch back to the last active automatic drive program Eor
S. The automatic transmission may shift to a higher gear. This can reduce the engine's
braking effect.
Heavy and light loads G
WARNING
The braking system can overheat if you leave your foot on the brake pedal while driving.
This increases the braking distance and could
even cause the braking system to fail. There is
a risk of an accident.
Never use the brake pedal as a footrest. Do
not simultaneously depress both the brake
pedal and the accelerator pedal while driving.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If heavy demands are made on the brakes, do not park the vehicle immediately. Drive on for
a short while. This allows the airflow to cool
the brakes more quickly.
If the brakes have been used only moderately,
you should occasionally test their effective-
ness. To do this, brake more firmly from a
higher speed, paying attention to traffic con-
ditions. This improves the grip of the brakes.
Wet road surfaces If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first time. This may also occur after a car wash orafter driving through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion. 166
Driving tipsDriving and parking