2016 MERCEDES-BENZ B-Class ELECTRIC ECU

Driving systems
Cruise Control
General notes
Cruise control maintainsaconstant road
speed for you. It brakes automatically in order to avoid exceeding the set speed. Change into
transmission position D
-(Ypage 138) on long
and steep downhill gradients. This increases
recuperation in overrun mode. This relieves
th e load on the brake system and prevents
th ebrake s from overheating and wearing too
quickly.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed foraprolonged period. You can
store any road speed above 20 mph
(30 km/ h).
The speed indicated in the speedometer may
differ slightly from the speed stored.
Important safety notes
If you fail to adapt your driving style, cruise
control can neither reduce the risk of an acci-
dent nor override the laws of physics. Cruise
control cannot take into account the road,
traffic and weather conditions. Cruise control
is only an aid. You are responsible for the dis-
tance to the vehicle in front, for vehicle speed,
for braking in good time and for staying in
your lane.
Do not use cruise control:
Rin road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel- erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:To activate or increase speed
;To activate or reduce speed
=To deactivate cruise control
?To activate at the current speed/last
stored speed
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds.
Activation conditions
To activate cruise control, all of the following
activation conditions must be fulfilled:
Rthe electric parking brake must be
released.
RESP®must be active, but not intervening.
Rthe transmission must be in position D.
Storing, maintaining and calling up a
speed
Storing and maintaining the current
speed
You can store the current speed if you are
driving faster than 20 mph (30 km/h).
XAccelerate the vehicle to the desired
speed.
XBriefly press the cruise control lever up :
or down ?.
XRemove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
162Driving systems
Driving and parking

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
Driving systems163
Driving and parking
Z

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
Driving and parking
Z

Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul-
tifunction display (
Ypage 186).
There is a short delay before a change in out-
side temperature appears in the multifunc-
tion display.
E-CELL display
GWARNING
There is a risk of an accident if you accelerate
or overtake when the power output of the
drive system is reduced.
You should therefore adapt your driving style
and drive particularly carefully. Charge the
high-voltage battery at a charge station imme-
diately.
XStart the drive system (Ypage 133).
E-CELL display :shows the available
power of the drive system.
Under normal operating conditions, E-CELL
display :is in the maximum range.
The power output available may deviate from
the maximum range in the event of:
Rvery high or low outside temperatures
Rvery high performance requirements for a
longer period of time
Rvery low condition of charge of the high-
voltage battery
Ra malfunction in the drive system
The reduced power output can be improved
by charging the high-voltage battery
(
Ypage 140).
Power display
Power display :contains two areas:
RArea above 0
Here, the current amount of power that the
drive system is feeding to the wheels is dis-
played.
RArea below 0
Here, the vehicle's recuperative power in
overrun mode is displayed.
If the needle for the power display is in the
OFF position, the vehicle is not ready to drive
because:
Rthe drive system has not yet started
Rthe charging cable is still connected to the
vehicle socket
Rthere is insufficient power available from
the high-voltage battery
Rthe vehicle's high-voltage electrical system
is malfunctioning
When the drive system is started, the needle
in the power display moves to position 0. The
display Ready
appears in the lower multifunc-
tion display. The vehicle is ready to drive.
The boost area for maximum acceleration can
be reached using kickdown (
Ypage 137).
Displays and operation183
On-board computer and displays
Z

The braking performance of the electric
motor using recuperative braking is, in some
operating modes, either reduced or not effec-
tive:
Rwhen the condition of charge of the high-
voltage battery increases
Rif the high-voltage battery is not yet at a
normal operating temperature
Rwhen driving close to the maximum speed
Rwhen the vehicle is almost stationary
Rin transmission positionN
Rduring and after ESP stability control
If necessary, counteract the reduced regen-
erative braking effect by applying the brake
yourself.
Condition of charge display
Condition of charge display :shows the
condition of charge of the high-voltage bat-
tery.
The charge value is shown as a percentage in
the Energy Flow
menu in the instrument
cluster (
Ypage 187).
iThe Energy Flowmenu can also be dis-
played in the COMAND/Audio display.
The condition of charge of the high-voltage
battery has dropped into the reserve range if
the drive system is running and:
Rthe DriveBatteryReserveLevelmes-
sage appears in the display
Rthe indicator lamp in the instrument cluster lights up Charge the high-voltage battery from a con-
dition of charge of less than 20% at:
Ran electrical outlet
Ra charging station
The braking performance of the electric
motor using recuperative braking is, in some
operating modes, either reduced or not effec-
tive:
Rwhen the condition of charge of the high-
voltage battery increases
Rif the high-voltage battery is not yet at a
normal operating temperature
Rwhen the vehicle is almost stationary
Rin transmission position N
Rduring and after ESP stability control
If you do not make an additional effort to
apply the brake yourself, the braking effect
may not be sufficient. If necessary, counter-
act the reduced regenerative braking effect
by applying the brake yourself.
Operating the on-board computer
Overview
:Multifunction display
;Vehicles with Audio 20: switches on
voice-operated control for navigation (see
manufacturer's operating instructions)
184Displays and operation
On-board computer and displays

Trip menu
Standard display
XPress and hold the %button on the
steering wheel until the Trip
menu with
trip odometer :and odometer ;
appears.
Trip computer "From Start" or "From
Reset"
:Distance
;Driving time
=Average speed
?Average electrical consumption
XPress the =or; button on the steer-
ing wheel to select the Trip
menu.
XPress the9or: button to select
From Start
or From Reset.
The values in the From Start
submenu are
calculated from the start of a journey whilst
the values in the From Reset
submenu are
calculated from the last time the submenu
was reset (
Ypage 189).
In the following cases, the trip computer is
automatically reset From Start
:
Rthe ignition has been switched off for more
than four hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded. When 9,999 hours or 99,999 miles have been
exceeded, the trip computer is automatically
reset
From Reset
.
ECO display
XPress the =or; button on the steer-
ing wheel to select the Trip
menu.
XPress the9or: button to select
ECO DISPLAY
.
If the ignition remains switched off for longer
than four hours, the ECO display will be auto- matically reset.
For further information on the ECO display,
see (
Ypage 157).
Energy flow
Energy flow display
The energy flow display can be shown in the
multifunction display and in the COMAND/
Audio display.
XPress the =or; button on the steer-
ing wheel to select the Trip
menu.
XConfirm by pressingaon the steering
wheel.
XUse : or9 to select Energy Flow.
The active components are highlighted in
the energy flow display.
The energy flow is indicated by arrows. The
arrows have a different color depending on
the operating state:
RGreen: energy recuperation
RWhite:normal energy consumption
RRed:increased energy consumption
Menus and submenus187
On-board computer and displays
Z

Drive system switched on when the vehi-
cle is stationary or in overrunmode
The drive system is switched on while the
vehicle is stationary. Alternatively, the drive
system is switched on while the vehicle is in
transmission position D
+orN.
The arrows indicating energy flow are not
shown.
Drive system switched off and high-volt-
age battery being charged
The drive system is switched off. The charging
cable is connected and the high-voltage bat-
tery is being charged.
The arrows for the energy flow are shown in
green.
Normal drivin g
The drive system powers the vehicle.
The arrows for the energy flow are shown in
white. Boost driving
mode
If high power is required, the boost mode
takes effect.
The arrows for the energy flow are shown in
red.
Energy recuperation mode
The kineti c energy of the vehicle is converted
into electrical energy. The Recuperative
Brake System is active. The high-voltage bat-
tery is being charged.
The arrows for the energy flow are shown in
green.
Displaying the range and current con-
sumption
XPress the =or; button on the steer-
ing wheel to select the Trip
menu.
XPress9or: to select the display
with approximate range and current fuel
consumption.
The approximate range depends on the
condition of charge of the high-voltage bat-
tery and your current driving style. If the
high-voltage battery condition of charge is
188Menus and submenus
On-board computer and displays