2017 MERCEDES-BENZ B-Class ECU

Speed alert .................................... 225
System .......................................... 219
Triggering the vehicle alarm ........... 226
Vehicle remote unlocking .............. 223
Mechanical key
Function/note s................................ 68
Inserting .......................................... 68
Locking vehicle ................................ 73
Removing ......................................... 68
Unlocking the driver's doo r.............. 73
Memory card (audio) ......................... 160
Memory function ................................. 85
Message memory (on-board com-
puter) .................................................. 167
Messages
see Display messages
Mirror turn signal
Cleaning ......................................... 237
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Connecting (Bluetooth ®
inter-
face) .............................................. 204
Connecting another mobile
phone ............................................ 206
Frequencies ................................... 281
Installation ..................................... 281
Menu (on-board computer) ............ 160
Transmission output (maximum) .... 281
Modifying the programming
(SmartKey) ........................................... 67
MOExtended tires .............................. 242
Mounting wheels
Lowering the vehicle ...................... 279
Mounting a new wheel ................... 278
Preparing the vehicle ..................... 276
Raising the vehicle ......................... 277
Removing a whee l.......................... 278
Securing the vehicle against roll-
ing away ........................................ 276
MP3
Operation ....................................... 160
see also Digital Operator's Man-
ual .................................................. 201 Multifunction display
Function/note s............................. 155
Permanent display ......................... 165
Multifunction steering wheel
Operating the on-board compute r..1 54
Overview .......................................... 33
Music files
see also Digital Operator's Man-
ual ................................................. .201 N
Navigation Entering a destination .................... 203
Menu (on-board computer) ............ 158
see also Digital Operator's Man-
ual ................................................. .201
Notes on breaking-in a new vehi-
cle ....................................................... 108 O
Occupant Classification System
(OCS) Conditions ....................................... 46
Faults ............................................... 49
Operation ......................................... 46
System self-test ............................... 48
Occupant safety
Air bags .......................................... .43
Automatic measures after an acci-
dent ................................................. 52
Children in the vehicle ..................... 52
Important safety note s.................... 38
Introduction to the restraint sys-
tem .................................................. 38
Occupant Classification System
(OCS) ............................................... 45
PASSENGER AIR BAG indicator
lamps ............................................... 39
Pets in the vehicle ........................... 58
Restraint system warning lamp ........ 39
Seat belt .......................................... 40
OCS
Conditions ....................................... 46
Faults ............................................... 49
Operation ......................................... 46
System self-test ............................... 48
Odometer ........................................... 156 12
Index

Protection against theft
ATA (Anti-Theft Alarm system) ......... 65
Immobilizer ...................................... 64
Protection of the environment
General notes ..................................22
Pulling away
General notes ................................ 111
Hill start assist ...............................1 11Q
QR code Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 28
Qualified specialist workshop ........... 27R
Radio Selecting a station ......................... 160
see separate operating instructions
Radio mode
see also Digital Operator's Man-
ual ................................................. .201
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 26
Range
RANGE PLUS ................................. 120
RANGE PLUS
charge .......................................... .164
Range ............................................ 120
Reading lamp ....................................... 89
READY indicator ................................ 152
Rear compartment
Setting the air vents ..................... .106
Rear fog lamp
Display message ............................ 179
Replacing bulbs ............................... 93
Switching on/off .............................. 88
Rear lamps
see Lights
Rear seats
Folding the backrest forwards/
back ............................................... 211
Rear view camera
"Reverse parking" function ............ 147
Cleaning instructions ..................... 238 Display in the multimedia system .. 146
Function/notes ............................
.145
General notes ................................ 145
Switching on/off ........................... 146
Rear window defroster
Problem (malfunction) ................... 103
Switching on/off ........................... 103
Rear window wiper
Replacing the wiper blade ................ 97
Switching on/off .............................. 95
Rear-view mirror
Anti-glare (manual) .......................... 83
Dipping (automatic) ......................... 84
Recharging statistics (COMAND)
Generated electricity ..................... 120
Recuperative Brake System
Driving safety systems ..................... 64
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 285
Refueling
Fuel gauge ....................................... 32
Remote control
Garage door opener ....................... 226
Programming (garage door
opener) .......................................... 226
Replacing bulbs
Backup lamp ................................... .93
High-beam headlamps ..................... 92
Important safety notes .................... 90
Installing/removing the cover
(front wheel arch) ............................ 92
License plate lamp ........................... 94
Low-beam headlamps ...................... 92
Overview of bulb types .................... 91
Parking lamps ................................. .92
Rear fog lamp .................................. 93
Standing lamps ................................ 92
Turn signals (front) .......................... .93
Reporting safety defects .................... 27
Rescue card ......................................... 28
Reserve
High-voltage battery ...................... 199
Restraint system
Display message ............................ 175
Introduction ..................................... 38
Warning lamp ................................. 198
Warning lamp (function) ................... 39 14
Index

Reverse gear
Engaging ........................................ 112
Reversing feature
Side windows ................................... 75
Roadside Assistance (breakdown) .... 24
Roof carrier ........................................ 215
Roof lining and carpets (cleaning
guidelines) ......................................... 240
Roof load (maximum) ........................ 286
Route guidance
see also Digital Operator's Man-
ual .................................................. 201 S
Safety Children in the vehicle ..................... 52
see Occupant safety
Safety notes
High voltage ..................................... 25
High-voltage electrical system ......... 25
Safety system
see Driving safety systems
SD card
Inserting ........................................ 206
Inserting/removing ........................ 206
Removing ....................................... 206
SD memory card
see also Digital Operator's Man-
ual .................................................. 201
Search & Send
see also Digital Operator's Man-
ual .................................................. 201
Seat belts
Adjusting the height ......................... 42
center rear-compartment sea t......... 42
Cleaning ......................................... 239
Correct usage .................................. 41
Fastening ......................................... 42
Important safety guidelines ............. 40
Introduction ..................................... 40
Releasing ......................................... 42
Warning lamp ................................. 190
Warning lamp (function) ................... 42
Seats
Adjusting (electrically) ..................... 80
Adjusting the 4-way lumbar sup-
port .................................................. 81 Adjusting the head restraint ............ 80
Cleaning the cover ......................... 239
Correct driver's seat position ........... 79
Folding the backrest (rear com-
partment) forwards/back .............. 211
Important safety notes .................... 79
Seat heating problem ...................... 82
Storing settings (memory func-
tion) ................................................. 86
Switching seat heating on/of f......... 82
Securing cargo .................................. 212
Selector lever
Cleaning ......................................... 239
see DIRECT SELECT lever
Sensors (cleaning instructions) ....... 237
Service menu (on-board com-
puter) .................................................. 163
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 284
Coolant (engine) ............................ 284
Important safety notes .................. 283
Refrigerant (air-conditioning sys-
tem) ............................................... 285
Washer fluid ................................... 285
Setting the air distribution ............... 102
Setting the airflow ............................ 102
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 201
Setting the language
see also Digital Operator's Man-
ual .................................................. 201
Setting the maximum charge cur-
rent (Control system) ........................ 165
Setting the time
see also Digital Operator's Man-
ual .................................................. 201
Settings
Factory (on-board computer) ......... 166
On-board compute r....................... 163
Side impact air bag ............................. 45
Side marker lamp (display mes-
sage) ................................................... 179
Side windows
Cleaning ......................................... 236 Index
15

From inside the vehicle (central
unlocking button) ............................. 72
USB devices
Connecting to the Media Inter-
face ............................................... 206 V
Vanity mirror (in the sun visor) ........ 217
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display messag e............................ 186
Equipment ....................................... 23
Individual settings .......................... 163
Limited Warranty ............................. 28
Loading .......................................... 266
Locking (in an emergency) ............... 73
Locking (SmartKey) .......................... 66
Lowering ........................................ 279
Maintenance .................................... 24
Parking for a long period ................ 131
Raising ........................................... 277
Reporting problems ......................... 27
Securing from rolling away ............ 276
Starting .......................................... 110
Transporting .................................. 254
Unlocking (in an emergency) ........... 73
Unlocking (SmartKey) ...................... 66
Vehicle data ................................... 286
Vehicle data
Roof load (maximum) ..................... 286
Trunk load (maximum) ................... 286
Vehicle dimensions ........................... 286
Vehicle emergency locking ................ 73
Vehicle Homepage
Data protection .............................. 127
Functions ....................................... 128
General information ....................... 127
Internet connection ....................... 128
Vehicle identification number
see VIN
Vehicle identification plate .............. 282
Vehicle tool kit .................................. 241
Ventilation
Setting the vents ........................... 106
Video
Operating the DVD ......................... 160 see also Digital Operator's Man-
ual .................................................. 201
VIN
Seat ............................................... 283
Type plate ...................................... 282 W
Warning and indicator lamps ABS ................................................ 193
Active Brake Assist ........................ 199
Brakes ........................................... 192
Distance warning ........................... 199
ESP ®
.............................................. 195
ESP ®
OFF ....................................... 196
Overview .......................................... 32
PASSENGER AIR BAG ...................... 39
RBS (Recuperative Brake Sys-
tem) ............................................... 192
Restraint system ............................ 198
Seat belt ........................................ 190
Tire pressure monitor .................... 200
Warranty .............................................. 23
Washer fluid
Display message ............................ 188
Weather display (COMAND)
see also Digital Operator's Man-
ual.................................................. 201
Wheel and tire combinations
Tires ............................................... 279
Wheel bolt tightening torque ........... 279
Wheel chock ...................................... 276
Wheels
Changing a whee l.......................... 275
Checking ........................................ 257
Cleaning ......................................... 236
Important safety notes .................. 257
Information on driving .................... 257
Interchanging/changing ................ 275
Mounting a new whee l................... 278
Removing a whee l.......................... 278
Storing ........................................... 276
Tightening torque ........................... 279
Wheel size/tire size ....................... 279
Window curtain air bag
Display message ............................ 175
Operation ......................................... 45 Index
19

G
WARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use loose floormats and do not place floormats on
top of one another.
! If equipment on the diagnostics connection
is used, the starter battery may discharge. Qualified specialist workshop
An authorized Mercedes-Benz Center is a quali-
fied specialist workshop. It has the necessary
specialist knowledge, tools and qualifications to correctly carry out the work required on your
vehicle. This is especially the case for work rel-
evant to safety.
Observe the notes in the Maintenance Booklet.
Always have the following work carried out at an authorized Mercedes-Benz Center:
R work relevant to safety
R service and maintenance work
R repair work
R alterations, installation work and modifica-
tions
R work on electronic components
R work on the drive system Correct use
If you remove any warning stickers, you or oth-
ers could fail to recognize certain dangers.
Leave warning stickers in position.
Observe the following information when driving your vehicle:
R the safety notes in this manual
R technical data for the vehicle
R traffic rules and regulations
R laws and safety standards pertaining to motor
vehicles Problems with your vehicle
If you should experience a problem with your
vehicle, particularly one that you believe may
affect its safe operation, we urge you to contact
an authorized Mercedes-Benz Center immedi-
ately to have the problem diagnosed and recti-
fied. If the problem is not resolved to your sat-
isfaction, please discuss the problem again with
an authorized Mercedes-Benz Center or, if nec-
essary, contact us at one of the following
addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
3 Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9 Reporting safety defects
USA only:
The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of 1966.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go to http://
www.safercar.gov; or write to: Administrator,
NHTSA, 400 Seventh Street, SW., Washington,
DC 20590. Operating safety
27Introduction Z

You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov Limited Warranty
! Follow the instructions in this manual about
the proper operation of your vehicle as well as about possible vehicle damage. Damage to
your vehicle that arises from culpable contra- ventions against these instructions is not cov-
ered either by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War- ranty. QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information under
www.mercedes-benz.de/qr-code. Data stored in the vehicle
Data storage
A wide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
R the vehicle's operating state
R incidents
R malfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
R operating conditions of system components,
e.g. fluid levels
R the vehicle's status messages and those of its
individual components, e.g. number of wheelrevolutions/speed, deceleration in move- ment, lateral acceleration, accelerator pedal
position
R malfunctions and defects in important system
components, e.g. lights, brakes
R vehicle reactions and operating conditions in
special driving situations, e.g. air bag deploy- ment, intervention of stability control sys-
tems
R ambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to:
R assist in recognizing and rectifying malfunc-
tions and defects
R analyze vehicle functions, e.g. after an acci-
dent
R optimize vehicle functions
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and malfunction data memory.
Services include, for example:
R repair services
R service processes
R warranties
R quality assurance
The vehicle is read out by employees of the ser-
vice network (including the manufacturer) using special diagnostic testers. More detailed infor-
mation is obtained from it, if required.
After a malfunction has been rectified, the infor-
mation is deleted from the malfunction memory or is continually overwritten.
When operating the vehicle, situations are con-
ceivable in which this technical data, in connec-
tion with other information (if necessary, under
consultation with an authorized expert), could
be traced to a person.
Examples include:
R accident reports
R damage to the vehicle
R witness statements
Further additional functions that have been con- tractually agreed upon with the customer allow
certain vehicle data to be conveyed by the vehi-
cle as well. The additional functions include, for example, vehicle location in case of an emer-
gency. 28
Data stored in the vehicleIntroduction

Instrument cluster
Function Page
0043
Speedometer with segments
Warning and indicator lamps:
0058
Low-beam headlamps 87
0060
Parking lamps 88
0057
High-beam headlamps 88
00E5
ESP® 195
0049
Electric parking brake
applied (red) 198
0024
Electric parking brake
(yellow) 198
00BA
Distance warning 199
004D
Brakes (yellow) 192
00BB
ESP®
OFF 195
0025
ABS malfunctioning 193
0027
Brakes (red) 192
0044
003E003D
Turn signals 88
0087
Multifunction display 155
with outside temperature
display
152 Function Page
0085
Power display 153
Warning and indicator lamps:
0075
Restraint system 198
00E9
Seat belt not fastened 190
00C6
RBS (Recuperative
Brake System) 192
005E
Rear fog lamp 88
00B9
Drive system 181
0077
Tire pressure monitor 200
0083
E-CELL display 152
0084
Display for the condition of
charge of the high-voltage
battery
153
00D9
High-voltage battery
reserve 18132
Instrument clusterAt a glance

Panic alarm
X
To activate: press and hold the
0033 button 0043for approx. one second.
A visual and audible alarm is triggered if the
alarm system is armed.
X To deactivate: press0033button 0043again.
or X Insert the SmartKey into the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑GO
X Press the Start/Stop button.
The SmartKey must be in the vehicle. Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
R seat belt system
R air bags
R child restraint system
R child seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all vehicle occupants:
R have fastened their seat belts correctly
(Y page 41)
R have adjusted their seat and head restraint
properly (Y page 79). As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (Y page 79).
You also have to make sure that an air bag can
inflate properly if deployed (Y page 43).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam- ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags are not deployed. When an accident occurs, only
the air bags that increase protection in that par- ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against objects penetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" (Y page 50).
For information on children traveling with you in
the vehicle and on child restraint systems, see
"Children in the vehicle" (Y page 52). Important safety notes
G
WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate a person
with disabilities, contact an authorized
Mercedes-Benz Center for details. USA only:
for further information contact our Customer
Assistance Center at 1-800-FOR-MERCedes
(1‑800‑367‑6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz. 38
Occupant safetySafety