2012 MERCEDES-BENZ B-CLASS Owners Manual

B-Class
Operator's ManualNur für internen Gebrauch / For internal use only
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that endanger your
health or life, or the health
or life of others. H
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Environmental notes provide you with
information on environmentally

aware actions
or disposal.
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dangers that could lead to damage to your
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Welcome to the world of Mercedes-Benz
We urge you to read this Operator's Manual
carefully and familiarize yourself with the
vehicle before driving. For your own safety
and a longer vehicle life, follow the
instructions and warning notices in this
manual. Ignoring
them
could result in damage
to the vehicle or personal injury to you or
others.
Vehicle damage caused by failure to follow
instructions is not covered by the Mercedes-
Benz Limited Warranty.
The equipment or product designation of your
vehicle may vary depending on:
R model
R order
R country specification
R availability
Mercedes-Benz therefore reserves the right
to introduce changes in the following areas:
R design
R equipment
R technical features
The equipment in your vehicle may therefore
differ from that shown in the descriptions and
illustrations.
The following are integral components of the
vehicle:
R Operator's Manual
R Maintenance Booklet
R Equipment-dependent supplements
Keep printed copies of the documents in the
vehicle at all times. If you sell the vehicle,
always pass the documents on to the new
owner.
The technical documentation team at
Daimler AG wishes you safe and pleasant
motoring.
Mercedes-Benz USA, LLC
Mercedes-Benz Canada, Inc.
A Daimler Company
2465840000 É2465840000bËÍ

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Index
....................................................... 4Introduction .........................................
20 At a glance
........................................... 27 Safety ...................................................
37 Opening and closing
...........................67 Seats, steering wheel and mirrors ....
85 Lights and windshield wipers
............97 Climate control
................................. 117 Driving and parking ..........................
133 On-board computer and displays
....185 Stowage and features ......................
235 Maintenance and care
......................265 Breakdown assistance
.....................279 Wheels and tires ...............................
297 Technical data ...................................
327 Contents
3ProCarManuals.com

1, 2, 3 ...
12 V socket see Sockets A
ABS (Anti-lock Braking System) Display message ............................ 201
Function/notes ................................
59
Important safety notes .................... 59
Warning lamp ................................. 225
Activating/deactivating cooling
with air dehumidification ................. 123
Active Parking Assist Canceling ....................................... 176
Detecting parking spaces .............. 173
Display message ............................ 216
Exiting a parking space .................. 175
Function/notes ............................. 173
Important safety notes .................. 172
Parking .......................................... 174
ADAPTIVE BRAKE ................................. 64
Adaptive Brake Assist Function/notes ................................ 61
Adaptive brake lamps .........................62
Adaptive Highbeam Assist Display message ............................ 212
Function/notes ............................. 102
Switching on/off (on-board
computer) ...................................... 197
Additional speedometer ................... 196
Additives (engine oil) ........................332
Air bags Deployment ..................................... 39
Front air bag (driver, front
passenger) ....................................... 42
Important safety notes .................... 41
Knee bag .......................................... 44
Safety guidelines ............................. 40
Side impact air bag .......................... 44
Window curtain air bag ....................45
Air-conditioning system
see Climate control
Air vents
Important safety notes .................. 130
Rear ............................................... 131
Setting ........................................... 130Setting the center air vents
...........130
Setting the side air vents ............... 130
Alarm system
see ATA (Anti-Theft Alarm system)


Ambient lighting
Setting the brightness (on-board
computer) ...................................... 197
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Ashtray ............................................... 249
Assistance menu (on-board
computer) .......................................... 194
ASSYST PLUS Displaying a service message ........ 270
Hiding a service message .............. 270
Notes ............................................. 270
Resetting the service interval
display ........................................... 270
Service message ............................ 270
Special service requirements ......... 271
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 65
Function ........................................... 65
Switching off the alarm .................... 65
ATTENTION ASSIST
Activating/deactivating ................. 195
Display message ............................ 215
Function/notes ............................. 180
Audio menu (on-board computer) .... 192
Audio system see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop
AUTO lights
Display message ............................ 211
see Lights
Automatic engine start (ECO start/
stop function) .................................... 137
Automatic engine switch-off (ECO
start/stop function) .......................... 137
Automatic headlamp mode ................994
Index
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Automatic transmission
Automatic drive program ............... 144
Changing gear ............................... 143
DIRECT SELECT lever .....................140
Display message
............................ 220
Drive program display ....................141
Driving tips .................................... 143
Emergency running mode ..............147
Engaging drive position .................. 142
Engaging neutral ............................ 141
Engaging reverse gear ................... 141
Engaging the park position ............ 141
Holding the vehicle stationary on
uphill gradients .............................. 143
Kickdown ....................................... 143
Manual drive program ....................144
Overview ........................................ 140
Problem (malfunction) ...................147
Program selector button ................143
Pulling away ................................... 136
Starting the engine ........................ 135
Steering wheel paddle shifters ...... 144
Transmission position display ........ 141
Transmission positions .................. 142
Automatic transmission
emergency mode ............................... 147B
Backup lamp Changing bulbs .............................. 109
Display message ............................ 211
Bag hook

............................................ 243
BAS (Brake Assist System) ................. 59
Battery (SmartKey) Checking .......................................... 70
Important safety notes .................... 70
Replacing ......................................... 70
Battery (vehicle)
Charging ........................................ 288
Display message ............................ 213
Important safety notes .................. 285
Jump starting ................................. 289
Belt force limiter
Activation ......................................... 49
Function ........................................... 49
Blinds
see Roller sunblind Blind Spot Assist
Activating/deactivating .................195
Display message

............................ 216
Notes/function .............................. 181
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 207
Notes ............................................. 332
Brake lamps
Adaptive ........................................... 62
Changing bulbs .............................. 109
Display message ............................ 209
Brakes
ABS .................................................. 59
Adaptive Brake Assist ......................61
BAS .................................................. 59
Brake fluid (notes) .........................332
Display message ............................ 201
Driving tips .................................... 154
Important safety notes .................. 154
Maintenance .................................. 155
Parking brake ................................ 150
Warning lamp ................................. 225
Breakdown
see Flat tire
see Towing away/tow-starting
Bulbs
see Changing bulbs C
Calling up a malfunction see Display messages


Car
see Vehicle
Care
Carpets .......................................... 277
Car wash ........................................ 271
Display ........................................... 275
Exhaust pipe .................................. 275
Exterior lights ................................ 274
Gear or selector lever ....................276
Interior ........................................... 275
Matte finish ................................... 273
Notes ............................................. 271
Paint .............................................. 273
Plastic trim .................................... 276 Index
5
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Power washer ................................
272
Rear view camera .......................... 275
Roof lining ...................................... 277
Seat belt
........................................ 277
Seat cover ..................................... 276
Sensors ......................................... 275
Steering wheel ............................... 276
Trim pieces .................................... 276
Washing by hand ........................... 272
Wheels ........................................... 273
Windows ........................................ 274
Wiper blades .................................. 274
Wooden trim .................................. 276
Cargo compartment cover ...............244
Cargo compartment enlargement ...240
Important safety notes .................. 240
Notes on use ................................. 242
Cargo compartment floor
Height adjustment .........................246
Important safety notes .................. 245
Opening/closing ............................ 246
Stowage well (under) ..................... 245
Cargo net
Attaching ....................................... 245
Important safety information ......... 245
Cargo tie down rings .........................243
Car wash (care) ................................. 271
Center console Lower section .................................. 33
Upper section .................................. 32
Central locking
Automatic locking (on-board
computer) ...................................... 198
Locking/unlocking (SmartKey) ........ 68
Changing bulbs
Brake lamps ................................... 109
Cornering light function .................108
High-beam headlamps ...................107
Important safety notes .................. 104
License plate lighting .....................111
Low-beam headlamps .................... 107
Overview of bulb types ..................105
Parking lamps ................................ 108
Rear fog lamp ................................ 109
Removing/replacing the cover
(front wheel arch) .......................... 106
Reversing lamps ............................ 109
Standing lamps (front) ...................108Tail lamps
...................................... 109
Turn signals (front) ......................... 108
Turn signals (rear)
..........................109
Child-proof locks
Important safety notes .................... 57
Rear doors ....................................... 58
Children
In the vehicle ................................... 50
Restraint systems ............................ 50
Child seat
Automatic recognition ..................... 53
LATCH-type (ISOFIX) child seat
anchors ............................................ 54
On the front-passenger seat ............52
Problem (malfunction) .....................57
Top Tether ....................................... 55
Cigarette lighter ................................ 250
Climate control Automatic climate control ............. 119
Automatic climate control (dual-
zone) .............................................. 121
Controlling automatically ...............125
Cooling with air dehumidification ..123
Defrosting the windows ................. 127
Defrosting the windshield .............. 127
Important safety notes .................. 118
Indicator lamp ................................ 125
Maximum cooling .......................... 127
Notes on using automatic climate
control ................................... 120, 122
Overview of systems ...................... 118
Problems with cooling with air
dehumidification ............................ 125
Problem with the rear window
defroster ........................................ 129
Refrigerant ..................................... 334
Refrigerant filling capacity .............335
Setting the air distribution .............126
Setting the airflow ......................... 126
Setting the air vents ......................130
Setting the temperature ................ 125
Switching air-recirculation mode
on/off ............................................ 129
Switching on/off ........................... 123
Switching residual heat on/off ...... 1296
Index
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