2015 MERCEDES-BENZ B-CLASS HATCHBACK warning

recuperation. Have the radar sensors checked
at a qualified specialist workshop immediately.
Automatic adjustment of recuperation
on downhill gradients The vehicle can detect steep downhill gradients.
To reduce acceleration downhill and to charge
the high-voltage battery, recuperation is
increased steplessly. This is comparable to the
engine brake in a combustion engine when you
downshift a gear on a downhill gradient.
Automatic adjustment of recuperation on down-
hill gradients is available in level DAUTO
or on
vehicles without steering wheel gearshift pad-
dles in level D.
Intelligent recuperation The vehicle uses the map and camera data of
Traffic Sign Assist in addition to the sensors of
COLLISION PREVENTION ASSIST PLUS during
radar-based recuperation ( DAUTO
). The rate of
recuperation is then automatically adjusted to
the current traffic situation, 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.
Do not touch any high-voltage components
after an accident and never modify the vehi-
cle's high-voltage electrical system. Have the vehicle towed away after an accident and the vehicle's high-voltage electrical system
checked by a qualified specialist workshop. G
WARNING
In the event of a vehicle fire, the internal pres- sure of the high-voltage battery could exceed a critical value. In this case, flammable gas
escapes through a vent valve in the vehicle's
underbody. The gas can ignite. There is a risk of injury.
Leave the danger area 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 such risks, 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 charging
cables which have been supplied with the
vehicle or which have been approved for
this vehicle.
R Never use a damaged charging cable.
R Do not use:
- extension cables
- extension reels
- multi-outlet sockets
R Never use socket adapters to connect the
charging cable to the mains socket. The
only exception is if the adapter has been
tested and approved by the manufacturer
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. 134
High-voltage batteryDriving and parking

To avoid hazardous situations, observe the
following:
R Only connect the charging cable to a wall-
box:
- which has been properly installed and
- which has been inspected by a qualified
electrician
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.
R Never use damaged charging cables.
R Do not extend the charging cable.
R Never use adapters.
R Observe the safety notes in the operating
instructions for the wallbox.
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 140) hanging loose from a mains
socket. Otherwise, this could result in a poor
contact with the mains socket and malfunctions
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 Observe the important safety notes
(Y
page 134).
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 mains 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.
Protection device 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
protection device against overvoltage has been triggered. Otherwise, the charging process can-not be continued. The high-voltage battery will
not be charged and you may not be able to drive
the vehicle. High-voltage battery
135Driving and parking Z

Stowing the charging cable
The charging cable can be stowed in a bag in the
boot of the vehicle. To do so, the bag must be
secured to the lashing eyelets using the retain-
ing strap provided.
Controls on the charging cable :
A/C status indicator
; Control/protection system indicator
= Charge current indicator
? Charge current setting button
When displays :and ;on the charging cable
light up, this means the following: Display
:
: Lights up
green The external mains supply
connection is working prop-
erly. The high-voltage battery
can be charged.
Flashes red A fault has been detected in
the external mains supply.
The high-voltage battery is
recharged as soon as the
electricity signal registers
normal values.
Lights up red There is a malfunction. The
charging cable must be
removed from the mains
socket and then re-inserted.
Display
; ; Lights up
green There are no faults. The high-
voltage battery can be
charged.
Lights up red There is a malfunction. The
high-voltage battery cannot
be charged. For information on problems relating to the
charging process, see (Y
page 144).
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 mains supply may overheat. There isa risk of fire.
Before charging, check the maximum permis-
sible charge current available at the location.
If necessary, contact a qualified specialist
company for assistance.
Adjust your vehicle's settings, if necessary.
! If the charge current is too high, the fuse
could be tripped or the external mains supply could overheat. Check if the external mains
supply is equipped to handle the programmed charge current. If necessary, reduce the pro-
grammed charge current or use a different
mains 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
mains 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
mains 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 relevant power socket checked by an electri-
cian.
X To adjust the setting: press button?
repeatedly until the desired setting is selec-
ted in display =.
R Two LEDs are flashing: minimum setting
R All LEDs are flashing: maximum setting
Information about the charging time
(Y page 284) 140
High-voltage batteryDriving and parking

If, after the charging process, the charging cable
is:
R left connected to the power socket, the cur-
rently selected values will be used for the next
charging process.
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
Indicator lamps on the vehicle socket When the indicator lamps on the vehicle socket
light up, this means the following: Left indicator lamp
Ì Ì Lights up The charging cable can be
connected or removed.
Flashes The charging cable connector
has been connected incor-
rectly. Right indicator lamp
Ý ÝFlashes
slowly in
orange The connection between the
vehicle and the current
source is being established
before charging begins.
Flashes
slowly in
green The high-voltage battery is
charging.
Lights up
green The high-voltage battery is
fully charged.
Flashes rap-
idly in red A malfunction has occurred
while charging. Connecting the charging cable
:
To open the charge socket flap
; Tyre pressure table
= Socket cap
? Reference sticker (voltage range)
A Left indicator lamp Ì
B Right indicator lamp Ý
C Vehicle socket
D 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 :.
The charge socket flap swings up.
X Remove socket cap =from vehicle socket
C.
X Insert the mains plug into the mains socket to
the stop.
X Insert the charging cable connector into vehi-
cle socket Cto the stop.
The high-voltage battery is charging.
The Ý right indicator lamp Bon vehicle
socket Cflashes green.
The vehicle must not be moved while the charg- ing cable is connected or during charging. High-voltage battery
141Driving and parking Z

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 174).
The indicator lamps in the vehicle socket and on the charging cable may stay on for up to
30 seconds after the charging cable has been
disconnected.
When the battery is charged:
X Unlock the vehicle.
The Ý right indicator lamp Bon vehicle
socket Cgoes out. The Ìleft indicator
lamp Aon vehicle socket Clights up white.
X Remove the charging cable from vehicle
socket Cwithin 30 second s. Otherwise the
vehicle will relock the vehicle socket.
X Close socket cap =.
X Close the charge socket flap.
X Remove the charging cable from the mains
socket.
X Stow the charging cable safely in the vehicle
(Y page 140).
If the charging cable cannot be removed from
the vehicle socket, unlock the charge socket
flap manually using the emergency release
(Y page 143). Charging a high-voltage battery at a
charging station/wallbox
General notes When charging your vehicle from a wallbox, use
the three-phase 32 A charging cable supplied.
The charging cable is stored in a bag in the boot.
Only use charging cables that have been tested
and approved by the manufacturer for charging
the high-voltage battery in an electric vehicle.
Observe the "Important safety notes"
(Y page 134). 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 :
To open the charge socket flap
; Tyre pressure table
= Socket cap
? Reference sticker (voltage range)
A Left indicator lamp Ì
B Right indicator lamp Ý
C Vehicle socket
D Warning sticker (charging cable)
X Shift the DIRECT SELECT lever to position P.
X Switch the ignition off. 142
High-voltage batteryDriving and parking

Parking
Important safety notes
G
WARNING
If you release the parking brake on uphill or
downhill gradients, the vehicle can begin to
move when in park position P. There is a risk
of an accident.
To avoid hazardous situations:
R prevent the parked vehicle from rolling on
uphill or downhill gradients by always
applying the parking brake.
R do not park the vehicle on uphill or downhill
gradients if the parking brake is malfunc-
tioning. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion, for example, if they:
R release the parking brake
R shift the transmission out of park position P
R start the vehicle's drive system
In addition, they may operate vehicle equip-
ment. There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
! while the vehicle is rolling, do not shift the
transmission directly from Dto R, from Rto D
or directly to P.
Do not open the driver's door while the vehi-
cle is in motion. Otherwise, at low speeds in
transmission position Dor R, park position P
is engaged automatically and the electrical
parking brake is applied.
The transmission could be damaged.
! Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is safeguarded
against rolling away unintentionally: R the electric parking brake must be applied.
R the transmission must be in position P.R
the key must be turned to position 0in the
ignition lock and then removed from the igni-
tion lock or the Start/Stop button must be
pressed
R on uphill or downhill gradients, turn the front
wheels towards the kerb. Switching off the drive system
G
WARNING
If you switch off the ignition while the vehicle
is in motion, safety-relevant functions are
restricted or not available. This can affect the power steering function and the brake boost-
ing effect, for example. You will then require
considerably more force to steer and brake.
There is a risk of an accident.
Do not switch off the ignition while the vehicle is in motion.
X Shift the DIRECT SELECT lever to position P.
X With the key: turn the key to position 0in the
ignition lock and remove it.
The immobiliser is activated.
X With the Start/Stop button: press the
Start/Stop button (Y page 126).
The drive system and all the indicator lamps in
the instrument cluster go out.
When the driver's door is closed, this corre-
sponds to key position 1. When the driver's
door is open, this corresponds to key position
0: "key removed".
If you switch the drive system off with the trans- mission in position Ror D, the transmission
automatically shifts to N.
With the key: if you then open the driver's door
or the front-passenger door or remove the key
from the ignition, the transmission automati-
cally shifts to P.
With the Start/Stop button: if you then open
the driver's door or the front-passenger door,
the transmission automatically shifts to P.
If you want the transmission to remain in neutral
N, e.g. when having the vehicle cleaned in an
automatic car wash with a towing system: Parking
145Driving and parking Z

With the key:
X Switch the ignition on.
X Depress the brake pedal and keep it
depressed.
X Shift to neutral N.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the ignition and leave the key in the
ignition lock.
With the Start/Stop button:
X Remove the Start/Stop button from the igni-
tion lock.
X Insert the key into the ignition lock.
X Switch the ignition on.
X Depress the brake pedal and keep it
depressed.
X Shift to neutral N.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the ignition and leave the key in the
ignition lock. Electric parking brake
General notes G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion, for example, if they:
R release the parking brake
R shift the transmission out of park position P
R start the vehicle's drive system
In addition, they may operate vehicle equip-
ment. There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle. The function of the electric parking brake and
the parking lock is dependent on the on-board
voltage. If the on-board voltage is low or if there
is a malfunction in the system, it may not be
possible to apply the released parking brake or
to shift the transmission to the Pposition.
X If this is the case, only park the vehicle on
level ground and secure it to prevent it from
rolling away.
X Shift the transmission to position P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or if
there is a malfunction in the system. Contact a
qualified specialist workshop.
The electric parking brake carries out a function check at regular intervals when the drive system
is switched off. Noises that occur are normal.
Applying or releasing manually X
To apply: push handle :.
When the electric parking brake is applied,
the ! red indicator lamp lights up in the
instrument cluster.
The electric parking brake can also be applied
when the key is removed.
X To release: pull handle:.
The red !indicator lamp in the instrument
cluster goes out.
The electric parking brake can only be
released:
R when the key is in position 1or 2in the
ignition lock (Y page 126) or
R if the ignition was switched on using the
Start/Stop button 146
ParkingDriving and parking

Applying automatically
When the vehicle's HOLD function is holding the
vehicle at a standstill, the electric parking brake is engaged automatically.
In addition, at least one of the following condi-
tions must be fulfilled:
R the drive system is switched off
R the driver's door is open and the seat belt is
not fastened
R there is a system malfunction
R the power supply is insufficient
R the vehicle is stationary for a lengthy period
The red !indicator lamp in the instrument
cluster lights up.
Releasing automatically The electric parking brake of your vehicle is
released automatically when all of the following
conditions are fulfilled:
R the vehicle has been started
R the transmission is in position Dor R
R the seat belt is fastened
R you depress the accelerator pedal
If the transmission is in position R, the tailgate
must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed
R you have shifted out of transmission position
P or you have previously driven faster than
3 km/h
Ensure that you do not depress the accelerator
pedal unintentionally. Otherwise, the parking
brake will be released and the vehicle will start
to move.
Emergency braking The vehicle can also be braked during an emer-
gency by using the electric parking brake.
X While driving, push handle :of the electric
parking brake (Y page 146).
The vehicle is braked as long as you keep
handle :of the electric parking brake
pressed. The longer the electric parking brake
handle :is depressed, the greater the brak-
ing force. During braking:
R a warning tone sounds
R the Release parking brake
Release parking brake message
appears
R the red !indicator lamp in the instrument
cluster flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is applied. Parking up the vehicle
If you leave the vehicle parked up for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked up for longer than
six weeks, it may suffer from lack of use.
X Visit a qualified specialist workshop and seek
advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop. Driving tips
General notes
Important safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving.
Your vehicle is powered by an electric motor.
The electric motor draws the energy required to
drive the vehicle from the high-voltage battery.
When braking and rolling, kinetic energy is con- verted into electrical energy by energy recovery
and stored in the high-voltage battery.
The range of the vehicle is reduced when con-
sumers are switched on, e.g. THERMOTRONIC. Driving tips
147Driving and pa rking Z