engine MERCEDES-BENZ B-Class ELECTRIC 2016 W246 Owner's Guide

XSlide fastener?to the right.
Socket cap =is open.
XInsert the power supply plug into the elec-
trical outlet to the stop.
XInsert the charging cable connector into
vehicle socket Bto the stop.
The high-voltage battery is being charged.
The vehicle must not be moved while the
charging cable is connected or during charg-
ing.
iDepending 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 dam-
age, the charging cable has been removed
from the vehicle socket. Otherwise, you
cannot shift the transmission out of posi-
tion P.
When the charge level display reaches 100%, the battery is fully charged (
Ypage 184).
When the battery is charged:
XPress and hold button Don the charging
cable connector and remove the charging
cable from vehicle socket B.
XClose socket cap=.
XClose the charge socket flap.
XRemove the charging cable from the elec-
trical outlet.
XStow the charging cable safely in the vehi-
cle (
Ypage 147).
Charging high-voltage battery at a
charging station/wallbox
General notes
Only use charging cables that have been tes-
ted and approved by the manufacturer for
charging the high-voltage battery in an elec-
tric vehicle.
Pay attention to the "Important safety notes"
(
Ypage 140).
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 charging 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.
High-voltage battery149
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Connecting the charging cable
:To open the charge socket flap
;Tire pressure table
=Socket cap
?Fastener
AReference sticker (voltage range)
BVehicle socket
CWarning sticker (charging cable)
XShift the DIRECT SELECT lever to position
P.
XSwitch the ignition off.
XPress the charge socket flap in the direc-
tion of arrow:.
The charge socket flap swings up.
XSlide fastener ?to the right.
Socket cap =is open.
XInsert the charging cable connector into
vehicle socket Bto the stop.
The high-voltage battery is being charged.
The vehicle must not be moved while the
charging cable is connected or during charg-
ing.
iDepending 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 dam-
age, the charging cable has been removed
from the vehicle socket. Otherwise, you
cannot shift the transmission out of posi-
tion P.
When the charge level display reaches 100%,
the battery is fully charged (
Ypage 184).
When the battery is charged:
XPress and hold button Don the charging
cable connector and remove the charging
cable from vehicle socket B.
XClose socket cap=.
XClose the charge socket flap.
150High-voltage battery
Driving and parking

GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the transmission out of park position
P.
Rstart the vehicle's drive system.
They could also operate the vehicle's equip-
ment. There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised 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
vehicle is in motion. Otherwise, at low
speeds in transmission position Dor R,
park position Pis 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 drivetrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
Rthe electric parking brake must be applied.
Rthe transmission must be in position P.
Rthe SmartKey in the ignition lock must be
turned to position0and removed from the
ignition lock.
Ron steep uphill or downhill gradients, turn
the front wheels towards the curb.
Switching off the drive system
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This can affect
the power steering and the brake boosting
effect, for example. You will require consider-
ably more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving.
XShift the DIRECT SELECT lever to position
P.
XWith the SmartKey: turn the SmartKey to
position 0in the ignition lock and remove it.
The immobilizer is activated.
XWith the Start/Stop button: press the
Start/Stop button (
Ypage 131).
The drive system and all the indicator lamps
in the instrument cluster go out.
When the driver's door is closed, this cor-
responds to SmartKey position 1. When the
driver's door is open, this corresponds to
SmartKey position 0: "SmartKey removed".
If you switch the engine off with the trans-
mission in position Ror D, the transmission
automatically shifts to N.
With the SmartKey: if you then open the
driver's door or the front-passenger door or
remove the SmartKey from the ignition, the
transmission automatically 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 neu-
tral N, e.g. when having the vehicle cleaned in
an automatic car wash with a towing system:
Using the SmartKey:
XSwitch on the ignition.
XDepress the brake pedal and keep it
depressed.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the Smart-
Key in the ignition lock.
154Parking
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Do not depress the brake pedal continuously
while the vehicle is in motion, e.g. causing the
brakes to rub by constantly applying light
pressure to the pedal. This results in exces-
sive and premature wear to the brake pads.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately.
Drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and brake pads. This can result in a significantly
longer braking distance.
RIn order to prevent any salt build-up, apply
the brakes occasionally while paying atten-
tion to the traffic conditions.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engineis running
Observe additional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. Consult a qualified specialist work-
shop to arrange this.
!A function or performance test should
only be carried out on a 2-axle dynamom-
eter. If you wish to operate the vehicle on
such a dynamometer, please consult a
qualified specialist workshop in advance.
You could otherwise damage the drive train
or the brake system.
!As the ESP®system operates automati-
cally, the engine and the ignition must be
switched off (the SmartKey must be in posi-
tion 0or 1in the ignition lock) if:
Rthe electric parking brake is tested on a
brake dynamometer (for a maximum of
ten second s)
Rthe vehicle is towed with the front axle
raised.
Braking triggered automatically by ESP
®
may seriously damage the brake system.
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XHold test gageAvertically on brake
disc :and slide measuring pin ;onto
brake disc :.
XCheck which color field ?the arrow on
measuring pin ;is pointing to.
Green: the brake pad/lining thickness is
sufficient.
Red: the brake pad/lining thickness is not
sufficient. Have the brake pads/lining
checked at a qualified specialist workshop.
To avoid an inaccurate measurement:
Rmake sure you position the wheels suitably
Rdo not put the measuring pin on a recess in
the brake disc
Driving on wet roads
Hydroplaning
If water has accumulated to a certain depth
on the road surface, there is a danger of
hydroplaning occurring, even if:
Ryou drive at low speeds.
Rthe tires have adequate tread depth.
For this reason, in the event of heavy rain or in conditions in which hydroplaning may occur,
you must drive in the following manner:
Rlower your speed.
Ravoid ruts.
Ravoid sudden steering movements.
Rbrake carefully.
Driving on flooded roads
!Do not drive through flooded areas.
Check the depth of any water before driving through it. Drive slowly through standing
water. Otherwise, water may enter the
vehicle interior or the engine compartment.
This can damage the electronic compo-
nents in the engine or the automatic trans-
mission. Water can also be drawn in by the
engine's air suction nozzles and this can
cause engine damage.
Winter driving
GWARNING
If you increase the recuperation level on slip-
pery road surfaces, the drive wheels may lose
their traction. There is an increased danger of
skidding and accidents.
Do not increase the recuperation level on slip-
pery road surfaces.
Have your vehicle winter-proofed at a quali-
fied specialist workshop at the onset of win-
ter.
Drive particularly carefully on slippery road
surfaces. Avoid sudden acceleration, steering and braking maneuvers. Do not use cruise
control.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
XShift the DIRECT SELECT lever to position
N.
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Changes in the outside temperature are dis-
played after a short delay.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
For more information on driving with snow
chains, see (
Ypage 305).
For more information on driving with summer
tires, see (
Ypage 304).
Observe the notes in the "Winter operation"
section (
Ypage 304).
Driving tips161
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iCruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Storing the current speed or calling up the
last stored speed
GWARNING
If you call up the stored speed and it differs
from th e current speed, the vehicle acceler-
ates or decelerates. If you do not know the
stored speed, the vehicle could accelerate or brake une xpectedly. There is a risk of an acci-
dent.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know th e stored speed, store the
desired speed again.
XBriefly pull the cruise control lever towards
you =.
XRemove your foot from the accelerator
pedal.
The first time cruise control is activated, it
stores the current speed or regulates the
speed of the vehicle to the previously
stored speed.
Setting a speed
Keep in mind that it may take a brief moment
until the vehicle has accelerated or braked to
the speed set.
XPress the cruise control lever up :for a
higher speed or down ?for a lower speed.
XTo adju stthe set speed in 1 mph incre-
ments (1 km/h increments): briefly
press the cruise control lever up :or
down ?to the pressure point.
The last stored speed increases or decrea-
ses in 1 mph (1 km/h) increments.
XTo adju st the set speed in 5 mph incre-
ments (10 km/h increments): brieflypress the cruise control lever up
:or
down ?to the pressure point.
The last stored speed increases or decrea-
ses in 5 mph (10 km/h)increments.
iCruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overtake,
cruise control adjusts the vehicle's speed
to the last speed stored after you have fin- ished overtaking.
Deactivating cruise control
There are several ways to deactivate cruise
control:
XBriefly press the cruise control lever for-
wards =.
or
XBrake.
Cruise control is automatically deactivated if:
Rthe vehicle is secured with the electric
parking brake
Ryou are driving at less than 20 mph
(30 km/h)
RESP®intervenes or you deactivate ESP®
Ryou shift the transmission to position N
while driving
If cruise control is deactivated, you will hear a
warning tone. You will see the Cruise con‐
trol Offmessage in the multifunction dis-
play for approximately five seconds.
iWhen 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:
Rwhen pulling away, especially on steep
slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
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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
GWARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe 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 vehi-
cle brakes automatically in certain situa-
tions.
To prevent damage to the vehicle, deacti-
vate the HOLD function in the following or
other similar situations:
Rwhen towing the vehicle
Rin the car wash
Deactivating the HOLD function
(
Ypage 164).
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/
stop function
Rthe driver's door is closed or your seat belt
is fastened
Rthe electric parking brake is released
Rthe transmission is in position D,Ror N
Activating the HOLD function
XMake sure that the activation conditions
are met.
XDepress the brake pedal.
XQuickly depress the brake pedal further
until :appears in the multifunction dis-
play.
The HOLD function is activated. You can
release the brake pedal.
iIf 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 automati-
cally if:
Ryou accelerate. On vehicles with automatic
transmission: only when the transmission
is in position Dor R.
Rthe transmission is in position P.
Ryou depress the brake pedal again with a
certain amount of pressure until :disap-
pears from the multifunction display.
Ryou secure the vehicle using the electric
parking brake.
iAfter a time, the electric parking brake
secures the vehicle and relieves the service
brake.
164Driving systems
Driving and parking

The electric parking brake secures the vehicle
automatically if the HOLD function is activa-
ted and:
Rthe driver's seat belt is not fastened and the
driver's door is open.
Rthe engine is switched off, unless it is auto- matically switched off by the ECO start/
stop function.
Ra system malfunction occurs.
Rthe power supply is not sufficient.
The Brake Immediately
message may also
appear in the multifunction display.
XImmediately depress the brake firmly until
the warning message in the multifunction
display goes out.
The HOLD function is deactivated. The horn
sounds at regular intervals if you have
switched off the engine, released the seat
belt and opened the driver's door with the
HOLD function activated. The sounding of the
horn alerts you to the fact that the HOLD
function is still activated. If you attempt to
lock the vehicle, the tone becomes louder.
The vehicle cannot be locked until you have
deactivated the HOLD function.
iAfter switching off the engine, it can only
be started again once you have deactivated
the HOLD function.
PARKTRONIC
Important safety notes
PARKTRONIC is an electronic parking aid with ultrasonic sensors. It monitors the area
around your vehicle using six sensors in the
front bumper and six sensors in the rear
bumper. PARKTRONIC indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is only an aid. It is not a replace-
ment for your attention to your immediate
surroundings. You are always responsible for
safe maneuvering, parking and exiting a park-
ing space. When maneuvering, parking or pulling out of a parking space, make sure that
there are no persons, animals or objects in
the area in which you are maneuvering.
!When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of
the vehicle. You could damage the vehicle
or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to position D,Ror N
Rshift the transmission to position D,Ror N
Rrelease the electric parking brake
Range of the sensors
General notes
PARKTRONIC does not take objects into con-
sideration that are:
Rbelow the detection range, e.g. people, ani-
mals or objects.
Rabove the detection range, e.g. overhang-
ing loads, truck overhangs or loading
ramps.
Driving systems165
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ments. PARKTRONIC is operational if yellow
segments showing operational readiness=
light up.
The transmission position of the automatic
transmission and the direction in which the
vehicle is rolling determine which warning
display is active when the engine is running.
Transmission
positionWarning display
DFront area activated
R, Nor the vehicle
is rolling back-
wardsRear and front areas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
Rsixth segment onwards, you will hear an
intermittent warning tone for approx-
imately two seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
:Indicator lamp
;Deactivating/activating PARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position 2in
the ignition lock.
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As soon as the parking procedure is com-
plete, thePark
AssistSwitchedOffmes-
sage appears and a warning tone sounds. The
vehicle is now parked.
Active Parking Assist no longer supports you
with steering interventions and brake appli-
cations. When Active Parking Assist is fin-
ished, you must steer and brake again your-
self. PARKTRONIC is still available.
Parking tips:
RThe way your vehicle is positioned in the
parking space after parking is dependent
on various factors. These include the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the
location. It may be the case that Active
Parking Assist guides you too far into a
parking space, or not far enough into it. In
some cases, it may also lead you across or
onto the curb. If necessary, you should can-
cel the parking procedure with Active Park-
ing Assist.
RYou can also select preselect transmission position D. The vehicle redirects and does
not drive as far into the parking space.
Should the transmission change take place
too early, the parking procedure will be
canceled. A sensible parking position can
no longer be achieved from this position.
Exiting a parking space
In order that Active Parking Assist can sup-
port you when you exit the parking space:
Ryou need to have parked using Active Park-
ing Assist.
Rthe border of the parking space must be
high enough at the front and the rear. A
curb is too small, for example.
Rthe border of the parking space must not be
too wide, as the position of the vehicle must
not exceed an angle of 45° to the starting
position as it is maneuvering into the park-
ing space.
Ra maneuvering distance of at least 3.3 ft
(1.0 m) must be available. Active Parking Assist can only assist you with
exiting a parking space if you have parked the
vehicle parallel to the direction of travel using
Active Parking Assist.
XStart the engine.
XRelease the electric parking brake.
XSwitch on the turn signal in the direction
you will drive out of the parking space.
XShift the transmission to position
Dor R.
The Start Park Assist? Yes: OK No:
message appears in the multifunction dis-
play %.
XTo cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
XTo exit a parking space using Active
Parking Assist: press theabutton on
the multifunction steering wheel.
The Park Assist Active Accelerate
andBrakeObserveSurroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steering wheel.
XPull away, being ready to brake at all times.
Do not exceed a maximum speed of
approximately 6 mph (10 km/h) when exit-
ing a parking space. Otherwise Active Park-
ing Assist will be canceled.
XStop when PARKTRONIC sounds the con-
tinuous warning tone, if not before.
XDepending on the message or as required,
shift the transmission to position Dor R.
Active Parking Assist immediately steers in
the other direction. The Park Assist
Active Accelerate and Brake
ObserveSurroundingsmessage appears
in the multifunction display.
iYou will achieve the best results by wait-
ing for the steering procedure to complete
before pulling away.
If you back up after activation, the steering
wheel is moved to the straight-ahead posi-
tion.
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