charging MERCEDES-BENZ B-Class 2017 W246 User Guide

vehicles without steering wheel paddle shifters
in level D.
Intelligent recuperation During radar-based recuperation (
DAUTO
), the
vehicle uses the map and camera data of Traffic
Sign Assist in addition to the Active Brake Assist
sensors. The rate of recuperation is then auto-
matically adjusted to the current traffic situa-
tion, taking the current and future maximum
speed into account. High-voltage battery
Important safety notes
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.
Following an accident, do not touch any high- voltage components and never modify the
vehicle'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. G
WARNING
In the event of a vehicle fire, the internal pres- sure of the high-voltage battery can exceed a
critical value. In this case flammable gas
escapes through a ventilation valve on the
underbody. The gas can ignite. There is a risk of injury.
Leave the danger zone immediately. Secure
the danger area at a suitable distance, whilst
observing legal requirements. G
DANGER
Connecting the charging cable to the mains
supply via incorrectly installed mains sockets or by means of adapters, extension cables or similar could cause a fire or an electric shock.
There is a risk of fatal injury.
To avoid hazardous situations, observe the
following:
R Only connect the charging cable to mains
sockets:
- which have been properly installed and
- which have been inspected by a qualified
electrician
R For safety reasons, only use the charging
cables supplied with the vehicle, or charg-
ing cables which have been approved for
use with this vehicle.
R Never use a damaged charging cable.
R Do not use:
- extension cables
- extension reels
- multiple sockets
R Never use socket adapters to connect the
charging cable to the mains socket. The
only exception being if the adapter has
been tested and approved by the manufac-
turer for charging the high-voltage battery
of an electric vehicle.
R Observe the safety notes in the operating
instructions for the socket adapter. G
DANGER
Connecting the charging cable to the wallbox via an incorrectly installed wallbox or adapter,
extension cable or similar could cause a fire or an electric shock. There is a risk of fatal injury.
To avoid hazardous situations, observe the
following:
R Only connect the charging cable to a wall-
box that:
- is installed correctly and
- has been inspected by a qualified elec-
trician
R For safety reasons, only use charging
cables that have been tested and approved by the manufacturer for charging the high-
voltage battery in an electric vehicle. High-voltage battery
117Driving and parking
Z

R
Never use damaged charging cables.
R Do not extend the charging cable.
R Do not use an adapter.
R Always observe the safety notes in the wall-
box's operating instructions.
The vehicle's high voltage electrical system is
under high voltage.
R Do not handle high-voltage components or
the orange cables of the vehicle's high-volt-
age electrical system.
R Do not touch high-voltage components or the
orange cables of the high-voltage electrical
system when a vehicle has been involved in a
crash.
R Do not touch any damaged components or
damaged orange cables of the vehicle's high-
voltage electrical system.
R Do not remove the covers of the high-voltage
electrical system components that are
marked with a warning sticker. Notes on the charging cable
Handling the charging cable and charg-
ing cable controls Do not leave the charging cable controls
(Y
page 123) hanging loose from an electrical
outlet. Otherwise, this could result in a poor
contact with the electrical outlet and malfunc-
tions when charging the vehicle.
To ensure that the brackets within the charging cable controls are not subjected to incorrect
loads, observe the following:
R Never lift or carry the controls by the charging
cable connector or the mains plug.
R To transport the charging cable, the coiled
part can be:
- wrapped around the controls or
- secured to the housing of the controls
Heat generated by the charging cable
and charging cable connector Pay attention to the important safety notes
(Y page 117).
During the charging process, the charging cable
and charging cable connector may heat up. The charging cable and charging cable connec-
tor will only heat up within the permissible lim-
iting values, provided that:
R the power supply and the charging cable are
not damaged
R the instructions for handling the charging
cable and controls on the charging cable are
observed
Should the permissible heating temperature lim-
its be exceeded, have the mains power supply
checked.
Electrical fuse against overvoltage !
Voltage surges in the mains supply can dam-
age the vehicle. The vehicle is therefore
equipped with a device which protects it from voltage surges in the mains supply. This
device may be triggered during severe thun-
derstorms, for example, and may lead to the
building's fuse being tripped and an interrup-
tion in the power supply. These functions pro-
tect the vehicle. After the building fuse is
switched on again, the charging process
resumes automatically. Following an interrup-
tion in the power supply without tripping of
the building's fuse, it may take up to
15 minutes for charging to resume automat-
ically.
Switch on the building's fuse again after the
electrical fuse against overvoltage has been
tripped. Otherwise, the charging process cannot
be continued. The high-voltage battery will not
be charged and you may not be able to drive the vehicle.
If other devices are protected by the same pro-
tective device, these are switched off as well
when the protective device is triggered. Ensure
that these other devices are still operational
after reactivating the protection device. 118
High-voltage batteryDriving and parking

Influences on the charging behavior
and the charge state of the high-volt-
age battery
Terms of use Observe the following notes:
R information on exceptions and limitations in
warranty documentation and in the related
Maintenance Booklet
R maintenance notes for the high-voltage bat-
tery in the Maintenance Booklet
Method of operation The vehicle is equipped with a high-voltage bat-
tery for driving. The high-voltage battery stores
the energy needed to operate the electric motor and releases it again.
The electric motor uses energy that has been
stored in the high-voltage battery when pulling
away, accelerating and during the journey.
In overrun mode (except D+), kinetic energy is
converted by means of energy recuperation into
electrical energy and stored in the high-voltage
battery.
The high-voltage battery can be charged as fol-
lows:
R through energy recuperation while the vehicle
is in motion
R with the charging cable at a mains socket
while the vehicle is stationary
R with the charging cable at a charging station
while the vehicle is stationary
The high-voltage battery can be charged using a
single-phase charging cable in a voltage range
from 100 V to 240 V.
If the condition of charge drops to less than 13%, the high-voltage battery reserve indicator lamp
lights up in the instrument cluster. Charge the
high-voltage battery as soon as possible.
Below a condition of charge of 5%, the perform-
ance of the vehicle is reduced. The vehicle's
high-voltage electrical system switches off at a
condition of charge of 0%.
Use of the pre-entry climate control function
may mean that the high-voltage battery is not
fully charged. High and low outside temperatures Low outside temperatures
The efficiency of the high-voltage battery is sig-
nificantly reduced at very low outside tempera-
tures. The high-voltage battery is then no longer able to provide the normal electrical power out-
put.
High outside temperatures
To prevent damage to the high-voltage battery
due to very high outside temperatures, the max- imum power output of the high-voltage battery
is reduced automatically.
The E-CELL display indicates the maximum
amount of power available (Y page 152).
Notes on battery care Avoid storing or transporting the vehicle in high
temperatures over a long period (e.g. container
transport).
If you park the vehicle and leave it stationary for
longer periods, connect it to a power supply.
Temperatures below 00F813 ‡ (00F825 †) and over
104 ‡ (40 †), which affect the vehicle for a
period of more than seven days, can cause irre- versible damage.
Discharged battery The vehicle's high-voltage electrical system
switches off if the high-voltage battery is com-
pletely discharged. 30 seconds prior to this, you
are informed of the switch-off by the Battery
Battery
Level Level Too
TooLow.
Low. Stop
Stopand
andCharge
Charge Immedi‐
Immedi‐
ately
ately message. This protects the battery from
exhaustive discharge.
It is not possible to restart the drive system until after charging.
Do not leave the vehicle parked for longer than
14 days with a high-voltage battery condition of
charge below 20%.
You can check the condition of charge in the
charge level display (Y page 153).
Further information on the "Energy flow display" can be found in the "Trip" menu (Y page 157). High-voltage battery
119Driving and parking Z

Energy consumption and range
This range is reduced by:
R high and low outside temperatures
R a non-anticipatory driving style
R switching on consumers, e.g. air-conditioning
system or heating
The battery's physical characteristics are such
that leaving the vehicle parked for an extended
period at low outdoor temperatures without
charging it can lead to:
R a reduction in battery performance
R longer charge times
In extreme cases, this could mean that the vehi- cle cannot be started. For this reason, connect
the charging cable when leaving the vehicle
parked for long periods at low outdoor temper-
atures.
As a result of its basic characteristics, the
amount of energy available from the high-volt-
age battery decreases over the course of its life.
This reduces:
R the maximum range that can be achieved by
the vehicle
R the maximum output (acceleration) of the
vehicle
You can actively reduce the energy consump-
tion of your vehicle in a number of ways, for
example, by:
R an anticipatory driving style
R reducing the use of electrical consumers
R having the vehicle regularly maintained
The charging time of the high-voltage battery
may change over the course of its life.
Observe the displays on energy usage
(Y page 158) and range (Y page 158).
RANGE PLUS If you activate RANGE PLUS, the operating win-
dow of the battery will be extended at the next
charging process. An extended driving range will
be available to you for the next journey.
Using RANGE PLUS shortens the service life of
the battery. Therefore, only use RANGE PLUS if, for example:
R long journeys are planned or
R the availability of charging stations at the des-
tination is limited The more often RANGE PLUS is used, the more
the extended range is reduced.
Therefore always check the range display before
every journey (Y page 158). X
To switch on: press button0043.
The green Indicator lamp lights up.
X To switch off: press button0043.
The indicator lamp goes out.
RANGE PLUS switches off automatically if:
R the charging cable is disconnected or
R the charging process is complete
Information on charging with RANGE PLUS
(Y page 164). Displays on energy consumption and
range
Displaying energy consumption and
recuperated electric energy in the mul-
timedia system: 0043
Energy consumption
0044 Recuperated electric energy
Every bar of the graph displays the average
value for one minute. 120
High-voltage batteryDriving and parking

Energy consumption indicator
0043may differ
from the indicator in the From Start
From Start
(Y page 156) trip computer in the Trip
Tripmenu.
Displaying energy consumption and recu-
perated electric energy:
X Switch on the multimedia system (see sepa-
rate operating instructions).
X To select Vehicle Vehiclefrom the main function bar:
turn and press the controller.
The vehicle menu is displayed.
X To select Consumption
Consumption: turn and press the
controller.
Energy consumption 0043and recuperated
electric energy 0044for the last 15 minute s of
the journey are shown.
Exiting the vehicle settings: X Press the 0038button on the controller.
or X To select 0038: slide 6and press the con-
troller.
To reset values: the values are reset along with
the From Start
From Start trip computer (Y page 158).
Displaying the range on the multimedia
system map 0043
Current vehicle position
0044 Range
0087 Range when route guidance is active (dark
blue)
The range can be displayed on the navigation
map for electric vehicles. The range is shown as
a circle around the current vehicle position.
When route guidance is active, the range is also
shown along the calculated route. This is done
by respective coloring of the blue route on the
navigation map. The range display on the multimedia system
navigation map is available on the 2D map dis-
play and a scale of 2 km to 100 km.
X To switch to navigation mode: press the
00CB button.
X To show the menu: slide6the controller.
X To select Destination
Destination: turn and press the
controller.
X Select Map Content
Map Content.
X Select Range on Map Range on Map .
Switch the display in the map on 0073or off 0053.
X To return to navigation mode: Press the
0038 button on the controller twice.
e-Navigator App (multimedia system) 0043
Current vehicle position
0044 Route when route guidance is active
0087 View level displayed: charging stations
(example)
0085 Range (80%)
0083 Range (100%)
In addition to a simple circular display of the
range, you can display the range taking desti-
nation accessibility into account. The foreseea-
ble range with destination accessibility is then
colored in.
When the range is shown in color, a distinction is made between two areas:
R Pale area: 100% of range
R Dark area: 80% of range
When route guidance is active, the route is
marked in color.
The range display with destination accessibility
on the multimedia system's navigation map is
available on the 2D map display and a map scale of 50 meters to 500 km. High-voltage battery
121Driving and parking Z

Displaying the range and destination acces-
sibility via navigation mode:
X To switch to navigation mode: press the
00CB button.
The map shows the vehicle's current position.
or
X From one of the other main functions: slide
5 the controller (e. g. in radio mode).
The main function bar is displayed.
X To select Navi
Navi from the main function bar:
turn and press the controller.
The map shows the vehicle's current position.
X To call up e-Navigator: press the00CBbut-
ton.
X To select Range on Map
Range on Map in the navigation
menu: turn and press the controller.
The range and destination accessibility are
displayed on the navigation map.
Displaying the range and destination acces- sibility via Mercedes-Benz Apps:
X Switch on the multimedia system (see sepa-
rate operating instructions).
X Set access data and connect to the Internet
(see separate operating instructions)
X To call up the telephone menu: press the
002B button.
X To switch to the main function bar: slide 5
the controller.
X To select Tel/
Tel/00A7: press the controller.
X To select Internet
Internet: turn and press the con-
troller.
The menu with the Internet functions is dis-
played.
X To select Mercedes-Benz Apps
Mercedes-Benz Apps: turn and
press the controller.
The available Mercedes-Benz Apps
Mercedes-Benz Apps are dis-
played.
X To call up the e-Navigator App: turn and
press the controller.
The navigation map is displayed showing the
range and destination accessibility
Showing the view levels on the map:
X To display the menu: slide6and press
the controller when the map appears.
The menu of the view levels opens. You may
choose from the following view levels: R
available charging stations
R current route
R current vehicle position with vehicle direc-
tion
Exiting the map display:
X Press the 0038button on the controller.
or
X To select 0038: slide 6and press the con-
troller. Charging the high-voltage battery via
the electrical outlet
Charging cable Important safety notes
! Only use the charging cable to charge the
high-voltage battery. Do not use the charging
cable for other purposes. It may otherwise be damaged.
The vehicle is supplied with a single-phase 12 A charging cable. Only use the charging cable
included with the vehicle, which has been
approved for vehicle use.
Pay attention to the "Important safety notes"
(Y page 117).
If you use the supplied 12 A charging cable to
charge a high-voltage battery:
R the charge time increases considerably
R electrical consumption increases considera-
bly
Where possible, charge the high-voltage battery at a charging station (Y page 125). Only then
can certified electrical energy consumption lev- els be reached.
i The charging process can vary depending on
the charging station. Therefore, always
observe the local information.
Stowing the charging cable
The charging cable can be stowed in a bag in the trunk of the vehicle. To do so, the bag must be
secured to the cargo tie-down rings using the
retaining strap provided. 122
High-voltage batteryDriving and pa
rking

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

relevant power socket checked by an electri-
cian.
X To adjust the setting: press button0085
repeatedly until the desired setting is selec-
ted in display 0087.
R Two LEDs are flashing: minimum setting
R All LEDs are flashing: maximum setting
Information about the charging time
(Y page 286)
If, after the charging process, the charging cable
is:
R left connected to the mains socket, the set
value will be used for the next charging proc-
ess.
R removed from the power socket, the values
will be reset to the minimum setting for the
next charging process. You may then need to
reset the values of the maximum charge cur-
rent.
If the charge current values that have been set
on the charging cable and the on-board com-
puter are different, the high-voltage battery is
charged using the lower value.
If the vehicle requires more time than usual to
charge the high-voltage battery, check:
R the settings of the maximum charge current
on the controls of the charging cable
R the settings of the maximum charge current in
the menu of the on-board computer Connecting the charging cable 0043
To open the charge socket flap
0044 Tire pressure table
0087 Socket cap
0085 Fastener
0083 Reference sticker (voltage range)
0084 Vehicle socket
006B Warning sticker (charging cable)
X Shift the DIRECT SELECT lever to position P.
X Switch the ignition off.
X Press the charge socket flap in the direction
of arrow 0043.
The charge socket flap swings up.
X Slide fastener 0085to the right.
Socket cap 0087is open.
X Insert the power supply plug into the electri-
cal outlet to the stop.
X Insert the charging cable connector into vehi-
cle socket 0084to the stop.
The high-voltage battery is being charged.
The vehicle must not be moved while the charg-
ing cable is connected or during charging.
i Depending on the temperature, the engine
cooling system and battery cooling system
may audibly switch on when the charging 124
High-voltage batteryDriving and parking

cable is connected or during the charging
process.
Removing the charging cable !
Before driving away, you must ensure that,
for your own safety and to avoid damage, the charging cable has been removed from the
vehicle socket. Otherwise, you cannot shift
the transmission out of position P.
When the charge level display reaches 100%,
the battery is fully charged (Y page 153).When the battery is charged:
X Press and hold button 006Con the charging
cable connector and remove the charging
cable from vehicle socket 0084.
X Close socket cap 0087.
X Close the charge socket flap.
X Remove the charging cable from the electrical
outlet.
X Stow the charging cable safely in the vehicle
(Y page 122). Charging high-voltage battery at a
charging station/wallbox
General notes Only use charging cables that have been tested
and approved by the manufacturer for charging
the high-voltage battery in an electric vehicle.
Pay attention to the "Important safety notes"
(Y page 117).
Charging communication at a charging
station The charging station first has to be activated
before you can charge at a charging station. You can activate the charging station by using an
RFID card or via telephone activation. Observe
the on-site operator instructions for the charg-
ing station.
When the vehicle is connected to the charging
station, information and details on technical
parameters are exchanged. It can thus take up
to 30 seconds for the charging process to begin.
Connecting the charging cable 0043
To open the charge socket flap
0044 Tire pressure table
0087 Socket cap
0085 Fastener
0083 Reference sticker (voltage range)
0084 Vehicle socket
006B Warning sticker (charging cable)
X Shift the DIRECT SELECT lever to position P.
X Switch the ignition off.
X Press the charge socket flap in the direction
of arrow 0043.
The charge socket flap swings up.
X Slide fastener 0085to the right.
Socket cap 0087is open.
X Insert the charging cable connector into vehi-
cle socket 0084to the stop.
The high-voltage battery is being charged. High-voltage battery
125Driving and parking Z

The vehicle must not be moved while the charg-
ing cable is connected or during charging.
i Depending on the temperature, the engine
cooling system and battery cooling system
may audibly switch on when the charging
cable is connected or during the charging
process.
Removing the charging cable !
Before driving away, you must ensure that,
for your own safety and to avoid damage, the
charging cable has been removed from the
vehicle socket. Otherwise, you cannot shift
the transmission out of position P.
When the charge level display reaches 100%,
the battery is fully charged (Y page 153). When the battery is charged:
X Press and hold button 006Con the charging
cable connector and remove the charging
cable from vehicle socket 0084.
X Close socket cap 0087.
X Close the charge socket flap. Problems with the charging process
Problem
Possible causes/consequences and
0050 0050Solutions The charge socket flap
cannot be opened. The charge socket flap is not unlocked.
X Unlock the vehicle (Y page 66). The SmartKey batteries are discharged.
X Unlock the vehicle manually using the SmartKey (Y page 68).The charge socket flap is unlocked, but the opening mechanism is
jammed.
X Lock and unlock the vehicle.
If, after that, the opening mechanism is still jammed:
X Consult a qualified specialist workshop. The high-voltage battery
is not being charged. A malfunction has occurred during the initialization of the charging
process.
X Ensure that the charging cable is connected to the electrical outlet.
X Remove the charging cable connector from the vehicle socket and
wait 30 seconds; then re-insert it into the vehicle socket.
X If the problem persists, consult a qualified specialist workshop. The high-voltage battery
is not charged during the
charging process when
connected to a power
socket. The electrical outlet is faulty.
X Have the electrical outlet checked to test if it is functioning prop-
erly.
or X Use a different electrical outlet. 126
High-voltage batteryDriving and parking