2016 MERCEDES-BENZ B-Class ELECTRIC brake light

The various different levels are to be used
under the following conditions:
D+Driving without much braking
and without the presence of
obstacles or sharp bends
The vehicle retains the maxi-
mum possible amount of kinetic
energy.
DNormal driving
D-Sporty driving or driving on a
downhill gradient
The brake pedal does not need
to be used as often because the
extent of the deceleration is
greater than inD.
Energy use when decelerating is
considerably higher than when
the vehicle is braked with the
brake pedal.
DAUTO
(radar-
based)
The intensity of recuperation is
automatically adjusted to the
current traffic situation.
Default setting
In levels Dand D-, deceleration can be con-
trolled in an infinitely variable manner using
the accelerator pedal.
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 design
speed
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.
Radar-based recuperation
The vehicle uses the sensors of COLLISION
PREVENTION ASSIST PLUS during radar-
based recuperation (D
AUTO). The sensors
detect the distance to the vehicle ahead and
its speed. The intensity of recuperation is
then automatically adjusted to the current
traffic situation.
The range can then be increased by storing
energy efficiently. Adjustment is infinitely var-
iable from overrun mode (no recuperation) to
maximum recuperation.
Maintain sufficient distance to the vehicle in
front. Mercedes-Benz recommends that you
activate COLLISION PREVENTION ASSIST
PLUS as a visual and acoustic aid.
Examples of radar-based recuperation:
RApproaching a slower vehicle, a decelerat-
ing vehicle or when following a vehicle
downhill. Your vehicle decelerates slightly
and increases recuperation.
RDriving when no vehicle is detected in front
or when a vehicle is detected in the far dis- tance or an accelerating vehicle is detec-
ted. Your vehicle switches to overrun mode
at higher speeds.
RDriving on a steep downhill slope. Acceler-
ation downhill is reduced and recuperation
is increased. This is comparable with shift-
ing down when driving downhill.
XTo activate radar-based recuperation:
pull steering wheel paddle shifter :or;
towards you and hold for about one second.
XTo deactivate radar-based recupera-
tion: briefly pull steering wheel paddle
shifter :or; towards you.
Transmission139
Driving and parking
Z

With the Start/Stop button:
XRemove the Start/Stop button from the
ignition lock.
XInsert the SmartKey into the ignition lock.
XSwitch on the ignition.
XDepress the brake pedal and keep it
depressed.
XShift to neutralN.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the Smart-
Key in the ignition lock.
If you try to switch off the drive system when
the transmission is not in position P:
Ra message appears in the multifunction dis-
play
Ra warning signal sounds
Electric parking brake
General notes
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.
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 P
position.
XIf this is the case, only park the vehicle on
level ground and secure it to prevent it roll-
ing away.
XShift the transmission to position P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a qualified specialist workshop.
The electric parking brake carries out a func-
tion check at regular intervals when the drive
system is switched off. The sounds that can
be heard while this is occurring are normal.
Applying or releasing manually
XTo engage: push handle :.
When the electric parking brake is applied,
the red F(USA only) or !(Canada
only) indicator lamp lights up in the instru-
ment cluster.
The electric parking brake can also be
applied when the SmartKey is removed.
XTo release: pull handle:.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument clus-
ter goes out.
Parking155
Driving and parking
Z

The electric parking brake can only be
released:
Rwhen the SmartKey is in position1or 2in
the ignition lock (
Ypage 131) or
Rif the ignition was switched on using the
Start/Stop button
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 con-
ditions must be fulfilled:
Rthe drive system is switched off.
Rthe driver's door is open and the seat belt is
not fastened.
Rthere is a system malfunction.
Rthe power supply is insufficient.
Rthe vehicle is stationary for a lengthy
period.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster
lights up.
Releasing automatically
Your vehicle's electric parking brake is auto-
matically released if all of the following con-
ditions are met:
Rthe vehicle has been started.
Rthe transmission is in position Dor R.
Rthe seat belt has been fastened.
Ryou 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:
Rthe driver's door is closed.
Ryou have shifted out of transmission posi-
tion Por you have previously driven faster
than 2 mph (3 km/h). Ensure that you do not depress the acceler-
ator 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
emergency by using the electric parking
brake.
XWhile driving, push handle :of the electric
parking brake (
Ypage 155).
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 braking force.
During braking:
Ra warning tone sounds
Rthe Please Release Parking Brake
message appears
Rthe red F(USA only) or !(Canada
only) indicator lamp in the instrument clus-
ter flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is applied.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six weeks, the vehicle may suffer damage as a
result of lack of use.
XVisit a qualified specialist workshop and
seek advice.
iYou can obtain information about trickle
chargers from a qualified specialist work-
shop.
156Parking
Driving and parking

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.
Driving tips159
Driving and parking
Z

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

XDrive forwards and back up as prompted bythe PARKTRONIC warning displays, several
times if necessary.
XStop when PARKTRONIC sounds the con-
tinuous warning tone, if not before.
Once you have exited the parking space com-
pletely, the steering wheel is moved to the
straight-ahead position. You hear a tone and
the Park Assist Finished
message
appears in the multifunction display. You will
then have to steer and merge into traffic on
your own. PARKTRONIC is still available. You
can take over the steering, before the vehicle
has exited the parking space completely. This
is useful, for example when you recognize
that it is already possible to pull out of the
parking space.
Canceling Active Parking Assist
XStop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be canceled at
once. The Park Assist Canceled
mes-
sage appears in the multifunction display.
or
XPress the PARKTRONIC button
(
Ypage 167).
PARKTRONIC is switched off and Active
Parking Assist is immediately canceled.
The Park Assist Canceled
message
appears in the multifunction display.
Active Parking Assist is canceled automati-
cally if:
Rthe electric parking brake is engaged
Rtransmission position Pis selected
Rparking using Active Parking Assist is no
longer possible
Ryou are driving faster than 6 mph (10 km/h)
Ra wheel spins, ESP®intervenes or fails. The
÷ warning lamp lights up in the instru-
ment cluster
A warning tone sounds. The parking symbol
disappears and the multifunction display shows the
Park Assist Canceled
mes-
sage.
When Active Parking Assist is canceled, you
must steer and brake again yourself.
If a system malfunction occurs, the vehicle is
braked to a standstill. To drive on, depress the
accelerator again.
Rear view camera
General notes
Rear view camera :is an optical parking and
maneuvering aid. It uses guide lines to show
the area behind your vehicle in the Audio/
COMAND display.
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
iThe text shown in the Audio/COMAND
display depends on the language setting.
The following are examples of rear view
camera messages in the Audio/COMAND
display.
Observe the notes on cleaning (
Ypage 278).
Important safety notes
The rear view camera is only an aid. It is not a
replacement for your attention to your imme- diate surroundings. You are always responsi-
ble for safe maneuvering and parking. When
maneuvering or parking, make sure that there
are no persons, animals or objects in the area
in which you are maneuvering.
172Driving systems
Driving and parking

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

Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavail‐
able See Opera‐
tor's Manual
ABS (Anti-lock Braking System), BAS (Brake Assist), ESP®(Elec-
tronic Stability Program), the HOLD function, RBS (Recuperative
Brake System) and hill start assist are temporarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The !, ÷,åandé (USA only) or J(Canada only)
warning lamps in the instrument cluster may also light up.
ATTENTION ASSIST is deactivated.
Possible causes are:
RSelf-diagnosis is not yet complete.
RThe on-board voltage may be insufficient.
GWARNING
The braking performance of the electric motor using recuperative
braking may be either reduced or not effective. If you do not make
an additional effort to apply the brake yourself, the braking effect
may not be sufficient. If necessary, counteract the reduced regen-
erative braking effect by applying the brake yourself.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/ h).
If the display message disappears, the functions mentioned
above are available again.
If the multifunction display still shows the display message:
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
!÷
Inoperative See
Operator's Manual
ABS, BAS, ESP®, the HOLD function, RBS and hill start assist are
not available due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The !, ÷,å, é(USA only) or J(Canada only) and
$ (USA only) or J(Canada only) warning lamps in the
instrument cluster may also light up.
Display messages201
On-board computer and displays
Z