2015 MERCEDES-BENZ B-CLASS HATCHBACK battery

Switching off the alarm .................... 68
ATTENTION ASSIST
Activating/deactivating ................. 183
Display message ............................ 205
Function/note s............................. 165
Audio menu (on-board computer) .... 180
Authorised workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 203
see Lights
Automatic front-passenger front
airbag deactivation
Display message ............................ 199
Automatic front-passenger front
airbag deactivation system
Operation ......................................... 42
Problems ......................................... 46
System self-test ............................... 45
Automatic headlamp mode ................ 98
Automatic transmission
Display message ............................ 210 B
Bag hook ............................................ 229
BAS (Brake Assist System) ................. 62
Battery (key)
Checking .......................................... 74
Important safety notes .................... 74
Replacing ......................................... 75
Battery (vehicle)
Charging ........................................ 256
Display message ............................ 204
Important safety notes .................. 254
Jump starting ................................. 258
Belt
see Seat belts
Belt tensioner
Activation ......................................... 46
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 183
Display message ............................ 206
Notes/function .............................. 169
Bonnet
Closing ........................................... 240
Display message ............................ 211 Important safety notes .................. 239
Opening ......................................... 239
Boot lid
see Tailgate
Boot load (maximum) ........................ 284
Brake
EBD .................................................. 66
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 195
Notes ............................................. 283
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 65
Display message ............................ 201
Brake system
Driving safety systems ..................... 67
Brakes
ABS .................................................. 61
Adaptive Brake Assist ...................... 64
BAS .................................................. 62
Brake fluid (notes) ......................... 283
Display message ............................ 190
Driving tips .................................... 148
Hill start assist ............................... 128
HOLD function ............................... 154
Important safety notes .................. 148
Parking brake ................................ 146
Warning lamp ................................. 215
Breakdown
Towing away .................................. 260
Where will I find...? ........................ 248
see Flat tyre
Brightness control (instrument
cluster lighting) ................................... 27
Buttons on the steering column ...... 174 C
Calling up a fault see Display messages
Car
see Vehicle
Car wash (care) ................................. 2434
Index

Care
Automatic car wash ...................... .243
Carpets .......................................... 247
Display .......................................... .246
Exterior lighting ............................ .245
Gear or selector lever .................... 247
High-pressure cleaner .................... 243
Interior .......................................... .246
Matt paintwork .............................. 244
Notes ............................................. 242
Paint .............................................. 244
Plastic trim ................................... .246
Reversing camera .......................... 246
Roof lining ...................................... 247
Seat belt ........................................ 247
Seat cover ..................................... 247
Sensors ......................................... 245
Steering wheel ............................... 247
Trim pieces ................................... .247
Washing by hand ........................... 243
Wheels .......................................... .244
Windows ........................................ 244
Wiper blades .................................. 245
Wooden trim .................................. 247
CD player (on-board computer) ........180
Central locking
Automatic locking (on-board com-
puter) ............................................. 187
Locking/unlocking (key ).................. 72
Centre console
Lower section .................................. 31
Upper section .................................. 30
Changing bulbs
Cornering light function ................. 106
Dipped-beam headlamp s............... 105
Licence plate lighting ..................... 108
Main-beam headlamp s................... 105
Parking lamps (front) ..................... 106
Rear foglamp ................................. 107
Reversing lamps ............................ 107
Standing lamps .............................. 106
Turn signals (front) ......................... 106
Turn signals (rear) .......................... 107
Charge level display .......................... 174
Charge socket flap
Emergency release ........................ 143
Charging
with RANGE PLUS .......................... 184 see Charging the high-voltage battery
Charging cable
Connection .................................... 141
Control panel ................................. 140
Disconnecting ................................ 142
Heating up ..................................... 135
Important safety notes .................. 139
Indicator lamps .............................. 141
Storing ........................................... 140
Charging the high-voltage battery
(important safety notes) ................... 134
Child
Restraint system .............................. 49
Child seat
Forward-facing restraint system ...... 54
ISOFIX .............................................. 50
On the front-passenger sea t............ 52
Rearward-facing restraint system .... 53
Recommendations ........................... 58
Suitable positions ............................ 54
Top Tether ....................................... 51
Child-proof locks
Important safety notes .................... 60
Rear doors ....................................... 60
Cigarette lighter ................................ 235
Cleaning
Mirror turn signal ........................... 245
Climate control
Auxiliary climate control (on-
board computer) ............................ 185
Controlling automaticall y............... 117
Convenience opening/closing
(air-recirculation mode) ................. 120
Cooling with air dehumidification .. 116
Demisting the windows .................. 118
Demisting the windscreen ............. 118
Immediate pre-entry climate con-
trol ................................................. 121
Indicator lamp ................................ 117
Information on using
THERMOTRONIC automatic cli-
mate control .................................. 115
Overview of systems ...................... 114
Pre-entry climate control at
departure time ............................... 121
Pre-entry climate control at time
of departure (on-board computer) .. 185 Pre-entry climate control via key ... 121 Index
5

Display
High-voltage battery charge level
(instrument cluster) ...................... .174
Display message
Drive system .................................. 204
Driving systems ............................ .205
Display messages
ASSYST PLUS ................................ 241
Calling up (on-board computer) ..... 189
General information ....................... 189
Hiding (on-board computer) ........... 189
Key ................................................ 212
Lights ............................................. 201
Safety systems .............................. 190
Tyres .............................................. 209
Vehicle .......................................... .210
Displaying electrical consumption
(on-board computer) ......................... 178
Displaying energy consumption
(on-board computer) ......................... 178
Distance warning function
Function/notes ................................ 63
Warning lamp ................................. 222
Distance warning signal (warning
lamp) ................................................. .222
Door
Automatic locking (on-board com-
puter) ............................................. 187
Automatic locking (switch) .............. .79
Central locking/unlocking (key) ...... 72
Control panel .................................. .32
Display message ............................ 211
Emergency locking ........................... 80
Emergency unlocking ....................... 80
Important safety note s.................... 78
Opening (from the inside) ................ 78
Drive system
Jump-starting ................................. 258
Starting with the key ...................... 128
Starting with the Start/Stop but-
ton ................................................. 127
Switching off .................................. 145
Driver's door
see Door
Driving abroad
Mercedes-Benz Service ................. 242
Symmetrical dipped beam ............... 97
Driving on flooded roads .................. 150Driving safety system
COLLISION PREVENTION ASSIST
PLUS ................................................ 62
EBD (electronic brake force distri-bution) ............................................. 66
STEER CONTROL ............................. 67
Driving safety systems
ABS (Anti-lock Braking System) ....... 61
ADAPTIVE BRAK E............................. 67
Adaptive Brake Assist ...................... 64
Adaptive brake lights ....................... 65
BAS (Brake Assist System) .............. 62
Distance warning function ............... 63
ESP ®
(Electronic Stability Pro-
gram) ............................................... 65
Important safety guidelines ............. 61
Overview .......................................... 61
Driving systems
Active Parking Assist ..................... 158
ATTENTION ASSIST ........................ 165
Blind Spot Assist ............................ 169
Cruise control ................................ 150
Display message ............................ 205
HOLD function ............................... 154
Lane Keeping Assist ...................... 170
Lane package ................................ 168
PARKTRONIC ................................. 155
Reversing camera .......................... 162
SPEEDTRONIC ............................... 152
Traffic Sign Assist .......................... 166
Driving tips
Aquaplaning ................................... 150
Brakes ........................................... 148
Downhill gradient ........................... 149
Driving abroad ................................. 97
Driving in winter ............................. 150
Driving on flooded roads ................ 150
Driving on wet roads ...................... 150
Energ y........................................... 148
General .......................................... 147
Icy road surfaces ........................... 150
Limited braking efficiency on sal-
ted roads ....................................... 149
New brake pads/linings ................ 149
Running-in tip s............................... 125
Snow chains .................................. 269
Symmetrical dipped beam ............... 97
Wet road surface ........................... 149 Index
7

DVD video
Operating (on-board computer) .... .180 E
E‑CELL display ................................... 173
EBD (electronic brake force distri-
bution)
Display message ............................ 192
Function/notes ................................ 66
ECO display
Function/notes ............................ .148
On-board computer ....................... 176
Electric motor number ......................282
Electromagnetic compatibility
Declaration of conformity ................ 22
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 48
Emergency key
Unlocking the driver's door .............. 80
Emergency key element
Function/notes ................................ 73
Inserting .......................................... 74
Locking vehicle ................................ 80
Removing ......................................... 74
Emergency release
Charge socket flap ......................... 143
Driver's door ................................... .80
Emergency unlocking
Tailgat e............................................ 81
Vehicle ............................................. 80
Energy
Driving tips .................................... 148
Energy flow display ........................... 177
Engine electronics
Notes ............................................. 280
Environmental protection
Returning an end-of-life vehicle ....... 19
ESP ®
(Electronic Stability Pro-
gram)
Activating/deactivating (on-
board computer) ............................ 182
Characteristics ................................. 66
Deactivating/activating (notes) ....... 66
Display message ............................ 190 Function/note
s................................ 65
General notes .................................. 65
Important safety guidelines ............. 65
Warning lamp ................................. 218
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 65
Exhaustive discharging (high-volt-
age battery) ....................................... 256
Exterior lighting
Cleaning ......................................... 245
see Lights
Exterior mirrors
Adjusting ......................................... 93
Anti-dazzle mode (automatic) .......... 94
Folding in when locking (on-boardcomputer) ...................................... 188
Folding in/out (automatically )......... 94
Folding in/out (electrically) ............. 94
Out of position (troubleshooting) ..... 94
Parking position ............................... 95
Resetting ......................................... 94
Storing settings (memory func-
tion) ................................................. 96 F
Fault message see Display messages
Fire extinguisher ............................... 249
First-aid kit ......................................... 248
Fitting a wheel
Fitting a wheel ............................... 276
Lowering the vehicle ...................... 276
Preparing the vehicle ..................... 274
Raising the vehicle ......................... 274
Removing a wheel .......................... 276
Securing the vehicle against roll-
ing away ........................................ 274
Flat tyre
Changing a wheel/fitting the
spare wheel ................................... 273
MOExtended tyre s......................... 250
Preparing the vehicle ..................... 249
TIREFIT kit ...................................... 251
Floormat ............................................. 238
Foglamps (extended range) .............. 101
Folding table ...................................... 2268
Index

Frequencies
Mobile phon e ................................. 280
Two- way radio ................................ 280
Front-passenger front airbag deac-
tivation
Display message ............................ 199
Front-passenger front airbag deac-
tivation system
Operation ........................................ .42
Problems ......................................... 46
System self-test ...............................45
Front-passenger seat
Folding the backrest forward/
back .............................................. .227
Fuses
Allocation chart ............................ .264
Before changing ............................ .263
Fuse box in the engine compart-
ment .............................................. 264
Fuse box in the front-passenger
footwell .......................................... 264
Important safety notes .................. 263 G
Generated electrical energy (Audio 20) ...................................................... 137
Generated electricity (COMAND) ..... 137
Genuine Mercedes-Benz parts ........... 19
Glove compartment .......................... 225H
Hazard warning lamps Display message ............................ 212
Switching on/off ........................... 100
Head restraints
Adjusting ......................................... 89
Adjusting (manually) ........................ 89
Adjusting (rear) ................................ 89
Fitting/removing (rear) .................... 90
Headlamp
Cleaning system (function) ............ 100
Cleaning system (notes) ................ 284
Headlamp flasher .............................. 100
Headlamps
Misting up ...................................... 102
Topping up the cleaning system .... 241 see Automatic headlamp mode
Heating
see Climate control
High voltage
see Safety notes
High voltage battery
Displaying energy consumption
(on-board computer) ...................... 178
Displaying the range (on-board
computer) ...................................... 178
High-pressure cleaners .................... 243
High-voltage battery
Battery care ................................... 136
Charging (charging station) ............ 142
Charging (mains socket) ................ 139
Charging (wallbox) ......................... 142
Charging cable heating up ............. 135
Discharged battery ........................ 136
Display message ............................ 204
Energy consumption ...................... 137
General notes ................................ 135
Method of operation ...................... 136
Outside temperatures .................... 136
Problems during charging .............. 144
Protective device ........................... 135
Range ............................................ 137
Reserve, warning lamp ................... 222
Terms of use .................................. 136
High-voltage disconnect device ......... 22
Hill start assist .................................. 128
HOLD function
Activating ....................................... 155
Deactivating ................................... 155
Display message ............................ 205
Function/note s............................. 154
Horn ...................................................... 25 I
Ignition lock see Key positions
Immobiliser .......................................... 67
Indicator and warning lamp
Restraint system ............................ 222
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 222 Index
9

Indicator lamps
Display message ............................ 201
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 27
Power display ................................ 173
Settings ........................................ .186
Warning and indicator lamps ........... 28
Instrument cluster lighting .............. 172
Intelligent Light System
Activating/deactivating ................. 187
Display message ............................ 202
Overview ........................................ 100
Setting the dipped-beam head-
lamps for driving on the right/left .. 187
Interior lighting
Control .......................................... .103
Emergency lighting ........................ 103
Overview ........................................ 102
Reading lamp ................................. 102
Interior motion sensor
Deactivating ..................................... 69
Function .......................................... .69
Priming ............................................ 69
Switching off .................................... 69
ISOFIX child seat securing system ....50J
Jack Storage location ............................2 49
Using ............................................. 274 K
Key Changing the battery ....................... 75
Checking the battery ....................... 74
Convenience closing feature ............ 83
Convenience opening feature .......... 83
Display message ............................ 212
Door central locking/unlocking ....... 72
Emergency key element ................... 73
Important safety notes .................... 71
KEYLESS-GO start function .............. 73
Loss ................................................. 76
Modifying the programming ............. 73 Positions (ignition lock) ................. 126
Problem (malfunction) ..................... 76
Key positions
Start/Stop button .......................... 126
Key positions (ignition lock) ............ 126
KEYLESS-GO
Convenience closing ........................ 83
Deactivation ..................................... 72
Locking ............................................ 72
Unlocking ......................................... 72
Kickdown
Driving tips ................................... .131
Kneebag ............................................... 41 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 183
Display message ............................ 206
Function/informatio n.................... 170
Lane package ..................................... 168
Lashing eyelets ................................. 229
Licence plate lamp (display mes-
sage) ................................................... 202
Licence plate lighting
Changing bulb s.............................. 108
Light sensor (display message) ....... 203
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 187
Active light function ....................... 100
Adaptive Highbeam Assist ............. 101
Automatic headlamp mode .............. 98
Cornering light function ................. 100
Dipped-beam headlamp s................. 98
Driving abroad ................................. 97
Foglamps (extended range) ........... 101
Hazard warning lamps ................... 100
Headlamp flashe r........................... 100
Headlamp range .............................. 99
Light switch ..................................... 97
Main-beam headlamp s..................... 99
Misted up headlamp s.................... 102 10
Index

Warning display ............................. 157
PASSENGER AIR BAG
Display message ............................1 99
Indicator lamps ................................ 35
Problems (malfunctions) ................ 199
Pets in the vehicle ............................... 61
Plastic trim (cleaning instruc-
tions) ................................................. .246
Power display ................................... .173
Power windows
see Side windows
Pre-Crash Safety System
see PRE-SAFE ®
(anticipatory
occupant protection)
PRE-SAFE ®
(anticipatory occupant
protection)
Operation ......................................... 48
PRE-SAFE ®
(preventive occupant
safety system)
Display message ............................ 196
Program selector button .................. 131
Protection against theft
ATA (Anti-Theft Alarm system) ......... 68
Immobiliser ...................................... 67
Interior motion sensor ..................... 69
Tow-away protection ........................ 68
Protection of the environment
General notes .................................. 19
Pulling away
Hill start assist ............................... 128 Q
QR code Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 23
Qualified specialist workshop ........... 23R
Radio Selecting a station ......................... 180
see separate operating instructions
Radio-based vehicle components
Declaration of conformity ................ 22
Range
RANGE PLUS ................................. 137 RANGE PLUS
charge .......................................... .184
Range ............................................ 137
Reading lamp ..................................... 102
READY indicator ................................ 172
Rear bench seat
Folding the backrest forwards/
back ............................................... 228
Rear compartment
Setting the air vents ..................... .124
Rear foglamp
Changing bulbs .............................. 107
Display message ............................ 202
Switching on/off .............................. 98
Rear lamps
see Lights
Rear window heating
Problem (fault) ............................... 120
Switching on/off ........................... 119
Rear window wiper
Replacing the wiper blade .............. 111
Switching on/off ........................... 109
Rear-compartment seat belt sta-
tus indicator ........................................ 39
Rear-view mirror
Anti-dazzle mode (automatic) .......... 94
Dipping (manual ).............................. 93
Recuperative Brake System
Driving safety systems ..................... 67
Replacing bulbs
Important safety notes .................. 103
Overview of bulb types .................. 104
Removing/replacing the cover
(front wheel arch) .......................... 105
Rescue card ......................................... 23
Reserve
High-voltage battery ...................... 222
Residual heat (climate control) ........ 122
Restraint system
Display message ............................ 198
Introduction ..................................... 34
Warning lamp ................................. 222
Warning lamp (function) ................... 34
Reverse gear
Engaging ........................................ 130
Reversing camera
Cleaning instructions ..................... 246 Index
13

In situations like this, the body, the under-
body, chassis parts, wheels or tyres could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no longer withstand the strain they are designed
for.
In such situations, have the vehicle checked
and repaired immediately at a qualified spe-
cialist workshop. If, upon continuing your
journey, you notice that driving safety is
impaired, pull over and stop the vehicle imme- diately, paying attention to road and traffic
conditions. In such cases, consult a qualified
specialist workshop.
If you make changes to electronic components,
their software or wiring, the general operating
permit for your vehicle may be rendered invalid.
Danger of electric shock G
DANGER
The vehicle's high voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Do not touch any high-voltage components
after an accident and never modify the vehi-
cle's high-voltage electrical system. Have the vehicle towed away after an accident and the vehicle's high-voltage electrical system
checked by a qualified specialist workshop. All of the vehicle's high-voltage electrical sys-
tem components are marked with yellow warn- ing stickers which warn you about high voltages.
The cables of the vehicle's high-voltage electri-
cal system are orange.
When towing a vehicle after an accident, be sure to observe the following sections:
R Transporting the vehicle (Y page 263)
R Towing the vehicle with the front axle raised
(Y page 262)
R Towing the vehicle with both axles on the
ground (Y page 262)
Read the important safety instructions on tow-
ing away (Y page 260).
The ignition must be switched off when carrying out general tasks, such as changing bulbs or
checking the coolant level.
Automatic switching off of the vehicle's high-voltage electrical system If the restraint systems are activated during an
accident, the vehicle's high-voltage electrical
system is automatically deactivated.
This is to ensure that you do not come into con-
tact with high voltage.
Automatic protection from switching
on of the vehicle's high-voltage electri-
cal system The vehicle's high-voltage electrical system is
not activated when the vehicle is started if:
R a serious electrical insulation fault is detected
in the vehicle's high-voltage electrical system
R an electrical connection in the vehicle's high-
voltage electrical system is disconnected
Automatic switching off of the charging
process The charging process is deactivated automati-
cally if:
R the high-voltage battery is fully charged.
The charging process is interrupted automati-
cally if:
R a serious electrical insulation fault is detected
in the vehicle's high-voltage electrical system
R an electrical connection in the vehicle's high-
voltage electrical system is disconnected Introduction
21 Z