key battery MERCEDES-BENZ B-Class 2017 W246 Owner's Manual

Index
....................................................... 4Digital Operator's Manual
..................21
Introduction .......................................... .21
Operation ............................................... 21 Introduction
......................................... 22
Protecting the environment ...................22
Genuine Mercedes-Benz parts .............. .22
Operator's Manual ................................. 23
Service and vehicle operation ................23
Operating safety .................................... 24
QR codes for the rescue card ................28
Data stored in the vehicle ...................... 28
Information on copyright ....................... 29 At a glance
........................................... 31
Cockpit .................................................. 31
Instrument cluster ................................. 32
Multifunction steering wheel ................. 33
Center console ...................................... 34
Door control panel ................................. 36
Overhead control panel ........................ .37Safety
................................................... 38
Panic alarm ............................................ 38
Occupant safety .................................... 38
Children in the vehicle ........................... 52
Pets in the vehicle ................................. 58
Driving safety systems ........................... 58
Protection against theft .........................64 Opening and closing
...........................66
SmartKey ............................................... 66
Doors ..................................................... 72
Cargo compartment ...............................74
Side windows ......................................... 75 Seats, steering wheel and mirrors
....79
Correct driver's seat position ................ 79
Seats ..................................................... 79
Steering wheel ....................................... 83
Mirrors ................................................... 83
Memory function ................................... 85 Lights and windshield wipers
............87
Exterior lighting ..................................... 87
Interior lighting ...................................... 89
Replacing bulbs ..................................... 90
Windshield wipers .................................. 95 Climate control
.................................... 99
Overview of climate control systems ..... 99
Operating the climate control sys-
tems .................................................... 100
Air vents .............................................. 106 Driving and parking
..........................108
Notes on breaking-in a new vehicle ..... 108
Driving ................................................. 108
Transmission ....................................... 111
High-voltage battery ............................ 117
Parking ................................................ 128
Driving tips .......................................... 131
Driving systems ................................... 136 On-board computer and displays
....152
Important safety notes ........................ 152
Displays and operation ........................ 152
Menus and submenus ......................... 156
Display messages ................................ 167
Warning and indicator lamps in the
instrument cluster ............................... 190 Multimedia system
...........................201
General notes ...................................... 201
Important safety notes ........................ 201
Function restrictions ............................ 201
Operating system ................................ 202 Stowage and features
......................207
Loading guidelines ............................... 207
Stowage areas ..................................... 207
Features .............................................. 216 Maintenance and care
......................231
Engine compartment ........................... 231
ASSYST PLUS ...................................... 233
Care ..................................................... 234 2
Contents

AUTO lights
Display message ............................ 180
see Lights
Automatic car wash (care) ...............234
Automatic headlamp mode ................ 87
Automatic transmission
Display message ............................ 186 B
Back button ....................................... 202
Backup lamp
Display message ............................ 179
Replacing bulbs ............................... 93
Bag hook ............................................ 212
BAS (Brake Assist System) ................. 59
Battery (SmartKey)
Checking .......................................... 69
Important safety notes .................... 68
Replacing ......................................... 69
Battery (vehicle)
Charging ........................................ 248
Display message ............................ 181
Important safety notes .................. 246
Jump starting ................................. 249
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 163
Display message ............................ 183
Notes/function .............................. 150
Blootooth ®
Connecting a different mobile
phone ............................................ 206
Bluetooth ®
Searching for a mobile phone ....... .205
see also Digital Operator's Man-
ual ................................................. .201
Telephony ...................................... 204
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 173
Notes ............................................. 284
Brake force distribution
see EBD (electronic brake force
distribution) Brake lamps
Display message ............................ 178
Brake system
Driving safety systems ..................... 64
Brakes
ABS ................................................. .59
BAS .................................................. 59
Brake fluid (notes) ......................... 284
Braking assistance appropriate to
the situation ..................................... 61
Display messag e............................ 168
EBD .................................................. 63
Hill start assist ............................... 111
HOLD function ............................... 138
Important safety notes .................. 133
Maintenance .................................. 134
Parking brake ................................ 130
Riding tips ...................................... 133
Warning lamp ................................. 192
Braking assistance appropriate to
the situation
Function/note s................................ 61
Breakdown
Towing away .................................. 251
Where will I find...? ........................ 241
see Flat tire
Buttons on the steering wheel ......... 154 C
California Important notice for retail cus-
tomers and lessees .......................... 23
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Car wash ........................................ 234
Carpets .......................................... 240
Display ........................................... 238
Exterior lights ................................ 237
Gear or selector lever .................... 239
Interior ........................................... 238
Matte finish ................................... 236
Notes ............................................. 234
Paint .............................................. 235
Plastic trim .................................... 238 Index
5

Power washer ................................ 235
Rear view camera .......................... 238
Roof lining ...................................... 240
Seat belt ........................................2 39
Seat cover ..................................... 239
Sensors ......................................... 237
Steering wheel ............................... 239
Trim pieces ................................... .239
Washing by hand ........................... 235
Wheels .......................................... .236
Windows ........................................ 236
Wiper blades .................................. 237
Wooden trim .................................. 239
Cargo compartment cover
Important safety notes .................. 212
Installing/removing ....................... 213
Notes/how to use ......................... 212
Cargo compartment enlargement ... 211
Cargo compartment floor
Height adjustment ......................... 215
Important safety notes .................. 214
Opening/closing ............................ 214
Stowage well (under) ..................... 214
Cargo net
Attaching ....................................... 213
Important safety information ......... 213
Cargo tie down rings ......................... 212
CD
see also Digital Operator's Man-
ual ................................................. .201
CD player (on-board computer) ........160
Center console
Lower section .................................. 35
Upper section .................................. 34
Central locking
Automatic locking (on-board com-
puter) ............................................. 166
Locking/unlocking (SmartKey) ....... .66
Change of address .............................. 24
Change of ownership .......................... 24
Changing the bulb
Cornering light function .................. .93
Charge level display .......................... 153
Charging
with RANGE PLUS .......................... 164
see Charging the high-voltage battery Charging cable
Connecting .................................... 124
Controls ........................................ .123
Important safety notes .................. 122
Removing ....................................... 125
Storing .......................................... .122
Warming up ................................... 118
Charging the high-voltage battery
(important safety notes) ................... 117
Child
Restraint system .............................. 54
Child seat
Forward-facing restraint system ...... 57
LATCH-type (ISOFIX) child seat
anchors ............................................ 55
On the front-passenger sea t............ 56
Rearward-facing restraint system .... 56
Top Tether ....................................... 55
Child-proof locks
Important safety notes .................... 57
Rear doors ....................................... 58
Children
Special seat belt retractor ............... 53
Cigarette lighter ................................ 218
Cleaning
Mirror turn signal ........................... 237
Climate control
Automatic climate control (dual-
zone) ................................................ 99
Auxiliary climate control (on-
board computer) ............................ 164
Controlling automaticall y............... 101
Convenience opening/closing
(air-recirculation mode) ................. 104
Cooling with air dehumidification .. 100
Defrosting the window s................. 103
Defrosting the windshield .............. 102
General notes .................................. 99
Immediate pre-entry climate con-
trol ................................................. 105
Indicator lamp ................................ 101
Information about using auto-
matic climate control ..................... 100
Maximum cooling .......................... 103
Overview of systems ........................ 99
Pre-entry climate control at
departure time ............................... 105 6
Index

Display
High-voltage battery charge level
(instrument cluster) ...................... .153
Display messages
ASSYST PLUS ................................ 233
Calling up (on-board computer) ..... 167
Drive system .................................. 181
Driving systems ............................ .182
General notes ................................ 167
Hiding (on-board computer) ........... 167
Lights ............................................. 178
Safety systems .............................. 168
SmartKey ....................................... 189
Tires ............................................... 185
Vehicle .......................................... .186
Displaying electrical consumption
(on-board computer) ......................... 158
Displaying energy consumption
(on-board computer) ......................... 158
Distance recorder .............................156
Distance warning (warning lamp) .... 199
Distance warning function
Function/notes ................................ 60
Warning lamp ................................. 199
Doors
Automatic locking (on-board com-
puter) ............................................. 166
Automatic locking (switch) .............. .73
Central locking/unlocking
(SmartKey) ...................................... .66
Control panel .................................. .36
Display message ............................ 187
Emergency locking ........................... 73
Emergency unlocking ....................... 73
Important safety note s.................... 72
Opening (from inside) ...................... 72
Drinking and driving ......................... 132
Drive system
Jump-starting ................................. 249
Starting with the SmartKey ............ 111
Starting with the Start/Stop but-
ton ................................................. 110
Switching off .................................. 129
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 234 Driving on flooded roads
.................. 135
Driving safety system
Active Brake Assist .......................... 60
Braking assistance appropriate tothe situation ..................................... 61
Driving safety systems
ABS (Anti-lock Braking System) ....... 59
ADAPTIVE BRAK E............................. 64
BAS (Brake Assist System) .............. 59
Distance warning function ............... 60
EBD (electronic brake force distri- bution) ............................................. 63
ESP ®
(Electronic Stability Pro-
gram) ............................................... 62
Important safety information ........... 58
Overview .......................................... 58
STEER CONTROL ............................. 64
Driving system
Parking assist PARKTRONIC .......... 139
Parking Pilo t.................................. 142
Driving systems
ATTENTION ASSIST ........................ 148
Blind Spot Assist ............................ 150
Cruise control ................................ 136
Display message ............................ 182
HOLD function ............................... 138
Rear view camera .......................... 145
Driving tips
Brakes ........................................... 133
Break-in period .............................. 108
Checking brake lining thickness .... 134
Downhill gradient ........................... 133
Drinking and driving ....................... 132
Driving in winter ............................. 135
Driving on flooded roads ................ 135
Driving on wet roads ...................... 135
Energy ........................................... 132
General .......................................... 131
Hydroplaning ................................. 135
Icy road surfaces ........................... 135
Limited braking efficiency on sal-
ted roads ....................................... 134
Snow chains .................................. 259
Wet road surface ........................... 134
DVD video
Operating (on-board computer) ..... 160
see also Digital Operator's Man-
ual .................................................. 201 8
Index

Generated electrical energy (Audio
20) ...................................................... 120
Genuine parts ...................................... 22
Glove box ........................................... 208
Google™ Local Search
see also Digital Operator's Man-
ual .................................................. 201 H
Handbrake see Parking brake
Hazard warning lamps
Display messag e............................ 188
Switching on/of f.............................. 89
Head restraints
Adjusting ......................................... 80
Adjusting (manually) ........................ 81
Adjusting (rear) ................................ 81
Headlamps
Fogging up ....................................... 89
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................... 88
High-beam headlamps
Display message ............................ 179
Replacing bulb s............................... 92
Switching on/of f.............................. 88
High-voltage battery
Battery care ................................... 119
Charging (charging station) ............ 125
Charging (mains socket) ................ 122
Charging cable warming ................ 118
Cruise rang e.................................. 120
Discharged battery ........................ 119
Display message ............................ 181
Displaying energy consumption
(on-board computer) ...................... 158
Displaying the range (on-board
computer) ...................................... 158
Energy consumption ...................... 120
General notes ................................ 118
Method of operation ...................... 119
Outside temperatures .................... 119
Overvoltage protection .................. 118
Problems with the charging proc-
ess ................................................. 126 Reserve, warning lamp ................... 199
Terms of use .................................. 119
High-voltage disconnect device ......... 26
Hill start assist .................................. 111
HOLD function
Activating ....................................... 138
Deactivating ................................... 138
Display message ............................ 182
Function/note s............................. 138
Home address
see also Digital Operator's Man-
ual.................................................. 201
Hood
Closing ........................................... 232
Display message ............................ 187
Important safety notes .................. 231
Opening ......................................... 231
Horn ...................................................... 31
Hydroplaning ..................................... 135 I
Ignition lock see Key positions
Immobilizer .......................................... 64
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 32
Power display ................................ 153
Setting s......................................... 165
Warning and indicator lamps ........... 32
Instrument cluster lighting .............. 152
Interior lighting
Control ............................................. 90
Overview .......................................... 89
Reading lamp ................................... 89
Internet connection
Via mobile service modul e............. 128
iPod ®
see also Digital Operator's Man-
ual .................................................. 201 10
Index

Convenience closing feature ............ 77
Convenience opening feature .......... 76
Important safety information ..........
.75
Opening/closing .............................. 76
Problem (malfunction) ..................... 78
Resetting ......................................... 77
Reversing feature ............................. 75
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 201
SmartKey
Changing the battery ....................... 69
Changing the programming .............67
Checking the battery ...................... .69
Convenience closing feature ............ 77
Convenience opening feature .......... 76
Display message ............................ 189
Door central locking/unlocking ...... .66
Important safety notes .................... 66
Loss .................................................70
Mechanical key ................................ 68
Positions (ignition lock) ................. 109
Problem (malfunction) ..................... 70
SmartKey positions (ignition lock) .. 109
SMS
see also Digital Operator's Man-
ual .................................................. 201
Snow chains ...................................... 259
Sockets
Center console .............................. 218
General notes ................................ 218
Luggage compartment ...................2 19
Rear compartment ......................... 219
Sound
Switching on/off ........................... 202
Special seat belt retractor .................. 53
Specialist workshop ............................ 27
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 165
Digital ............................................ 158
In the Instrument cluster ................. 32
Selecting the display unit .............. .165
Standing lamps
Display message ............................ 179
Replacing bulbs ............................... 92 Switching on/off .............................. 88
Start/Stop button
Removing ....................................... 110
Starting the drive system .............. .110
Starting (vehicle) ............................... 110
STEER CONTROL .................................. 64
Steering
Display message ............................ 188
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (manually) ........................ 83
Button overview ............................... 33
Buttons (on-board computer) ......... 154
Cleaning ......................................... 239
Important safety notes .................... 83
Paddle shifters ............................... 115
Steering wheel paddle shifters ........ 115
Stowage compartments
Armrest (front) ............................... 208
Armrest (under) ............................. 209
Center console .............................. 208
Center console (rear) ..................... 209
Cup holders ................................... 216
Eyeglasses compartment ............... 208
Glove box ....................................... 208
Important safety information ......... 207
Map pockets .................................. 210
Stowage net ................................... 210
Under driver's seat/front-
passenger sea t.............................. 209
Stowage net ....................................... 210
Summer tires ..................................... 259
Sun visor ............................................ 217
Switching air-recirculation mode
on/off ................................................. 104
Switching on media mode
Via the device list .......................... 206 T
Tail lamps see Lights
Tailgate
Display message ............................ 187
Emergency unlocking ....................... 75
Important safety notes .................... 74 16
Index

the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (Y page 193) as well as display
messages (Y page 170). ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to
the braking function, ADAPTIVE BRAKE also has
the HOLD function (Y page 138) and hill start
assist (Y page 111). STEER CONTROL
General information STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilization.
This steering assistance is provided in particular if:
R both right wheels or both left wheels are on a
wet or slippery road surface when you brake
R the vehicle begins to skid
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 58).
No steering assistance is provided from STEER
CONTROL, if:
R ESP ®
is malfunctioning
R the steering is malfunctioning
If ESP ®
is malfunctioning, you will be assisted
further by the electrical power steering. Recuperative Brake System
G
WARNING
In the event of malfunctions in the Recupera- tive Brake System, the following may occur: R
the braking performance of the electric
motor may be either reduced or not effec-
tive
R brake pedal resistance may be lower than
usual
R pedal travel may be longer than usual
If you do not make an additional effort to apply the brake yourself, the braking effect may not
be sufficient. There is a risk of an accident.
In the event of this malfunction, continue to
depress the brake pedal. The brake system is
still fully functional.
Observe the important safety notes on driving
safety systems (Y page 58).
The Recuperative Brake System converts the
kinetic energy when braking into electrical
energy. The electric motor is used as an alter-
nator during braking. This electrical energy is
then stored in the high-voltage battery.
You can find information about manually adjust- able recuperation under "Steering wheel paddle
shifters" (Y page 115).
If the warning light in the instrument cluster is lit
up, there is a motor malfunction or a brake mal- function.
Observe information regarding indicator and
warning lamps (Y page 192) as well as display
messages (Y page 168). Protection against theft
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
X To activate with the SmartKey: remove the
SmartKey from the ignition lock.
X To activate with KEYLESS-GO start-func-
tion or KEYLESS-GO: switch the ignition off
and open the driver's door.
X To deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Anyone
can start the drive system if a valid SmartKey
has been left inside the vehicle.
i The immobilizer is always deactivated when
you start the drive system. 64
Protection against theftSafety

In the event that the engine cannot be started
(yet the vehicle's battery is charged), the sys-
tem is not operational. The READY display in
the multifunction display does not appear.
Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada). ATA (anti-theft alarm system)
X
To arm: lock the vehicle with the SmartKey or
KEYLESS-GO.
Indicator lamp 0043flashes. The alarm system
is armed after approximately 15 seconds.
X To disarm: unlock the vehicle with the Smart-
Key or KEYLESS-GO.
or X Insert the SmartKey into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the tailgate
R the hood
X To turn the alarm off with the SmartKey:
press the
0036or0037 button on the Smart-
Key.
The alarm is stopped.
or X Vehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove the Start/Stop but-
ton from the ignition lock (Y page 109).
X Insert the SmartKey into the ignition lock.
The alarm is stopped. X
To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The SmartKey
must be outside the vehicle.
The alarm is stopped.
or X Press the Start/Stop button on the dash-
board. The SmartKey must be inside the vehi-
cle.
The alarm is stopped.
The alarm is not switched off, even if you close
the open door that triggered it, for example.
i If the alarm continues for more than
30 seconds, the mbrace emergency call sys-
tem automatically notifies the Customer
Assistance Center. This is done either by text
message or data connection.
The emergency call system sends the mes-
sage or data provided that:
R you have subscribed to the mbrace service.
R the mbrace service has been activated
properly.
R the necessary mobile phone network is
available. Protection against theft
65Safety Z

Locking and unlocking
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry the
SmartKey with you. You can combine the func-
tions of KEYLESS-GO with those of a conven-
tional SmartKey. Unlock the vehicle by using
KEYLESS-GO, for instance, and lock it using the 0037 button on the SmartKey.
The driver's door and the door at which the han-
dle is used, must both be closed. The SmartKey
must be outside the vehicle. When locking or
unlocking with KEYLESS-GO, the distance
between the SmartKey and the corresponding
door handle must not be greater than 3 ft (1 m).
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
the vehicle. This occurs, for example:
R when starting the drive system
R while driving
R when the external door handles are touched
R during convenience closing X
To unlock the vehicle: touch the inner sur-
face of the door handle.
X To lock the vehicle: touch sensor surface 0043
or 0044.
Make sure that you do not touch the inner
surface of the door handle.
X Convenience closing feature: touch
recessed sensor surface 0044for an extended
period.
Further information on the convenience clos-
ing feature (Y page 77). X
To unlock the tailgate: pull tailgate han-
dle 0043.
Deactivating and activating If you do not intend to use the vehicle for a lon-
ger period of time, you can deactivate KEYLESS-
GO. The SmartKey will then use very little power, thereby conserving battery power. For the pur-
poses of activation/deactivation, the vehicle
must not be nearby.
X To deactivate: press the0037button on the
SmartKey twice in rapid succession.
The battery check lamp of the SmartKey
flashes twice briefly and lights up once, then
KEYLESS-GO is deactivated (Y page 69).
X To activate: press any button on the Smart-
Key.
or X Insert the SmartKey into the ignition lock.
KEYLESS-GO and all of its associated features
are available again. Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the charge socket flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
X To change the setting: press and hold the
0036 and0037 buttons simultaneously for SmartKey
67Opening and closing Z

approximately six seconds until the battery
check lamp flashes twice (Y page 69).
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the 0037 or0036 button:
R locks or
R unlocks the vehicle
The SmartKey now functions as follows:
X To unlock: press the0036button once.
X To unlock centrally: press the0036button
twice.
X To lock centrally: press the0037button.
The KEYLESS-GO function is changed as fol-
lows: X To unlock the driver's door: touch the inner
surface of the door handle on the driver's
door.
X To unlock centrally: touch the inner surface
of the door handle on the front-passenger
door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press and
hold the 0036and0037 buttons simultane-
ously for approximately six seconds until the
battery check lamp flashes twice
(Y page 69). Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the anti-
theft alarm system will be triggered (Y page 65).
There are several ways to turn off the alarm:
X To deactivate the alarm with the key: press
the 0036 or0037 button on the key.
or X Insert the SmartKey into the ignition lock.
or X To deactivate the alarm with KEYLESS-GO:
press the Start/Stop button in the ignition
lock. The SmartKey must be in the vehicle. or
X Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the vehi-
cle.
If you unlock the vehicle using the mechanical
key, the charge socket flap will not be unlocked automatically.
X To unlock the charge socket flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key X
Push release catch 0043in the direction of the
arrow and at the same time remove mechan- ical key 0044from the SmartKey.
For further information about:
R Unlocking the driver's door (Y page 73)
R Unlocking the cargo compartment
(Y page 75)
R Locking the vehicle (Y page 73)
Inserting the mechanical key X
Push mechanical key 0044completely into the
SmartKey until it engages and release
catch 0043is back in its basic position. SmartKey battery
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury. 68
SmartKeyOpening and closing