fuses MERCEDES-BENZ B-Class 2017 W246 Owner's Manual

Breakdown assistance
.....................241
Where will I find...? .............................. 241
Flat tire ................................................ 241
Batteries .............................................. 246
Jump-starting ....................................... 249
Towing ................................................. 251
Fuses ................................................... 254 Wheels and tires
............................... 257
Important safety notes ........................ 257
Operation ............................................ 257
Winter operation .................................. 259
Tire pressure ....................................... 260
Loading the vehicle .............................. 266
All about wheels and tires ................... 269
Changing a wheel ................................ 275
Wheel and tire combinations ............... 279 Technical data
................................... 281
Information regarding technical data ... 281
Vehicle electronics .............................. 281
Identification plates ............................. 282
Service products and filling capaci-
ties ...................................................... 283
Vehicle data ......................................... 286 Contents
3

E
E ‑CELL display .................................. .152
EBD (electronic brake force distri-
bution)
Display message ............................ 170
Function/notes ................................ 63
ECO display
Function/notes ............................ .132
On-board computer ....................... 156
Electric motor number ......................283
Electrical energy generated
(COMAND) .......................................... 120
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 52
Emergency release
Driver's door ................................... .73
Vehicle .............................................73
Emergency Tensioning Devices
Activation ........................................ .50
Emergency unlocking
Tailgat e............................................ 75
Energy
Driving tips .................................... 132
Energy flow display ........................... 157
Entering an address
see also Digital Operator's Man-
ual.................................................. 201
ESP ®
(Electronic Stability Pro-
gram)
Activating/deactivating (on-
board computer) ............................ 162
Characteristics ................................. 63
Deactivating/activating (notes) ....... 63
Display message ............................ 168
Function/note s................................ 62
General notes .................................. 62
Important safety information ........... 62
Warning lamp ................................. 195
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 62
Exhaustive discharging (high-volt-
age battery) ....................................... 248
Exterior lighting
Cleaning ......................................... 237 see Lights
Exterior mirrors
Adjusting ......................................... 84
Dipping (automatic) ......................... 84
Out of position (troubleshooting) ..... 84
Storing settings (memory func-
tion) ................................................. 86
Storing the parking position ............. 85
Eyeglasses compartment ................. 208 F
Favorites Overview ........................................ 203
Flat tire
MOExtended tire s.......................... 242
Preparing the vehicle ..................... 241
TIREFIT kit ...................................... 243
Floormats ........................................... 229
Folding table ...................................... 209
Frequencies
Mobile phone ................................. 281
Two-way radio ................................ 281
Front-passenger seat
Folding the backrest forward/
back ............................................... 210
Fuel
Fuel gaug e....................................... 32
Fuses
Allocation chart ............................. 256
Before changing ............................. 255
Fuse box in the engine compart-
ment .............................................. 255
Fuse box in the front-passenger
footwell .......................................... 256
Important safety notes .................. 254 G
Garage door opener Clearing the memory ..................... 228
General notes ................................ 226
Important safety notes .................. 226
Opening/closing the garage doo r..2 28
Problems when programming ....... .228
Programming (button in the rear-
view mirror) ................................... 226
Synchronizing the rolling code ....... 227 Index
9

Controls on the charging cable
0043
A/C status indicator
0044 Control system and electrical fuses indica-
tor
0087 Charge current indicator
0085 Charge current setting button
When displays 0043and 0044on the charging cable
light up, this means the following: Display
0043 0043 Lights up green The external power
supply connection is
working properly. The
high-voltage battery
can be charged. Flashes red A malfunction has
been detected in the
external power sup-
ply. The high-voltage
battery is recharged
as soon as the elec-
tricity signal registers
normal values. Lights up red There is a malfunc-
tion. The charging
cable must be
removed from the
electrical outlet and
then re-inserted. Display
0044
0044 Lights up green There are no malfunc-
tions. The high-volt-
age battery can be
charged. Lights up red There is a malfunc-
tion. The high-voltage
battery cannot be
charged. For information on problems relating to the
charging process, see (Y
page 126).
Setting the maximum charge current G
WARNING
If the charge current draw via a mains socket is too high during the charging process, the
external electrical system may overheat.
There is a risk of fire.
Before beginning the charging process, check the maximum permissible charge current
locally. Consult a qualified expert to do so
where necessary.
If necessary, adjust your vehicle's settings.
! An excessive charge current can blow a fuse
or lead to overheating of the external power
supply. Check whether the external power
supply is compatible with the set charge cur-
rent. If necessary, lower the set charge cur-
rent or use another power socket.
You can set a limit for the values of the charge
current used in charging the high-voltage bat-
tery. This acts as a means of preventing the
power supply from overloading. You can set this limit by using the controls on the charging cable
or in the on-board computer's menu. Only set
the maximum charge current in the on-board
computer menu if there are no charge current
settings on the charging cable.
The default standard value is the minimum
charge current setting. This corresponds to the
minimum available charge current from the
power supply.
i The value of the maximum setting and the
relevant adjustment values may vary depend-
ing on the country.
Before charging the high-voltage battery, have
the maximum permissible charge current for the High-voltage battery
123Driving and parking Z

i
When you switch off the engine, the last
speed stored is cleared. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the driver
having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply.
R the HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
R the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
R the battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
! If the HOLD function is activated, the vehicle
brakes automatically in certain situations.
To prevent damage to the vehicle, deactivate
the HOLD function in the following or other
similar situations:
R when towing the vehicle
R in the car wash
Deactivating the HOLD function (Y page 138).Activation conditions You can activate the HOLD function if:
R the vehicle is stationary
R the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
R the driver's door is closed or your seat belt is
fastened
R the electric parking brake is released
R the transmission position D,Ror Nis engaged
Activating the HOLD function X
Make sure that the activation conditions are
met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until 0043appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automatically
if:
R you accelerate. On vehicles with automatic
transmission: only when the transmission is in
position Dor R.
R the transmission is in position P.
R you depress the brake pedal again with a cer-
tain amount of pressure until 0043disappears
from the multifunction display.
R you secure the vehicle using the electric park-
ing brake.
i After a time, the electric parking brake
secures the vehicle and relieves the service
brake. 138
Driving systemsDriving and parking

X
Vehicles with KEYLESS-GO: use the Smart-
Key instead of the Start/Stop button
(Y page 110).
X Make sure that the vehicle is stationary.
X Turn the SmartKey to position 2in the ignition
lock.
X When the vehicle is stationary, depress the
brake pedal and keep it depressed.
X Shift the transmission to position P.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the automatic locking
(Y page 166).
X Switch on the hazard warning lamps
(Y page 89).
X Turn the SmartKey in the ignition lock to posi-
tion 0and leave the SmartKey in the ignition
lock. Towing the vehicle with the rear axle
raised
When towing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions (Y page 251).
! The ignition must be switched off if you are
towing the vehicle with the rear axle raised.
Intervention by ESP ®
could otherwise dam-
age the brake system.
The transmission automatically shifts to posi-
tion Pwhen you open the driver's or front-
passenger door or when you remove the Smart-
Key from the ignition lock. In order to ensure
that the transmission stays in position Nwhen
towing the vehicle, you must observe the fol-
lowing points:
X Vehicles with KEYLESS-GO: use the Smart-
Key instead of the Start/Stop button
(Y page 110).
X Make sure that the vehicle is stationary.
X Turn the SmartKey to position 2in the ignition
lock.
X Depress and hold the brake pedal.
X Shift the transmission to position N.
X Release the brake pedal.
X Apply the electric parking brake.
X Switch off the automatic locking
(Y page 166). X
Bring the front wheels into the straight-ahead
position.
X Switch on the hazard warning lamps
(Y page 89).
X Turn the SmartKey in the ignition lock to posi-
tion 0and leave the SmartKey in the ignition
lock. Transporting the vehicle
All vehicles !
You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise, the
vehicle could be damaged.
X Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Shift the transmission to position N.
As soon as the vehicle has been loaded: X Prevent the vehicle from rolling away by
applying the electric parking brake.
X Shift the transmission to position P.
X Turn the SmartKey to position 0in the ignition
lock and remove it.
X Secure the vehicle.
The towing eye can be used to pull the vehicle
onto a trailer or transporter for transporting pur- poses. Fuses
Important safety notes
G
WARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper- age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
! Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Only use fuses marked with an "S". Other- 254
FusesBreakdown assistance

wise, components or systems could be dam-
aged.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing in or dirt could otherwise impair the oper- ation of the fuses.
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
Blown fuses must be replaced with fuses of the same rating, which you can recognize by the
color and value. The fuse ratings are listed in the
fuse allocation chart.
The fuse allocation chart is in the fuse box in the front-passenger footwell (Y page 256).
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified special- ist workshop, e.g. an authorized Mercedes-Benz
Center. Before changing a fuse
X Secure the vehicle against rolling away
(Y page 128).
X Switch off all electrical consumers.
X Vehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the driv-
er's door.
The vehicle electronics now have status 0.
This is the same as the SmartKey having been removed.
The fuses are located in various fuse boxes: R Fuse box in the engine compartment on the
left-hand side of the vehicle, when viewed in
the direction of travel
R Fuse box in the front-passenger footwell
The fuse allocation chart is on the fuse box in the front-passenger footwell (Y page 256). Fuse box in the engine compartment
G
WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood. X
Open the hood.
X Use a dry cloth to remove any moisture from
the fuse box.
X To open: unclip hood release cable 0085from
bracket 0087.
X Open retaining clamps 0044.
X Fold cover 0043up in the direction of the arrow
and remove it. X
To close: check whether the seal is seated
correctly in cover 0043.
X Insert cover 0043at the back into openings 0083
on the fuse box.
X Slide hood release cable 0085to the side and
hold if necessary.
X Fold down cover 0043.
X Clip hood release cable 0085into bracket 0087. Fuses
255Breakdown assistance Z

X
Hook clamps 0044into the fuse box and close.
X Close the hood. Fuse box in the front-passenger foot-
well X
To open: open the front-passenger door.
X Remove the floormat.
X Fold out perforated floor covering 0043in the
direction of the arrow. X
To release cover 0087, press retaining
clamp 0044.
X Fold out cover 0087in the direction of the arrow
to the catch.
X Remove cover 0087forwards.
Fuse allocation chart 0085is located on the
lower right-hand side of cover 0087.
X To close: insert cover 0087on the left-hand side
of the fuse box into the retainer.
Cover 0087engages in the retainers.
X Fold down cover 0087until clamps 0044lock audi-
bly.
X Fold back perforated floor covering 0043.
X Install the floormats. 256
FusesBreakdown assistance