2017 MERCEDES-BENZ B-Class Owner's Manual

You can start the drive system if a valid key is in
the vehicle. Switch off the drive system and
always take the key with you when leaving the
vehicle, even if you only leave it for a short time. Pay attention to the important safety notes.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 109).
The drive system is started. Once the vehicle
is ready to be driven, the Ready
Ready display
(Y page 152) appears in the lower part of the
multifunction display.
Starting procedure with the SmartKey To start the drive system using the key instead
of the Start/Stop button, pull the Start/Stop
button out of the ignition lock.
X Turn the SmartKey to position 3(Y page 109)
in the ignition lock and release it.
The drive system is started. Once the vehicle
is ready to be driven, the Ready Readydisplay
(Y page 152) appears in the lower part of the
multifunction display. Pulling away
The vehicle is equipped with a sound generator.
At low speeds, an electric vehicle makes less
noise than a vehicle with a combustion engine.
The sound generator is activated so that other
road users can hear your vehicle better. The
sound generator is activated at speeds of under
20 mph (30 km/h) and switches off automati-
cally at higher speeds.
X Depress the brake pedal and keep it
depressed.
X Move the DIRECT SELECT lever to position D
or R.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake is automatically
released (Y page 131).
The red 0049(USA only) or 0024(Canada
only) indicator lamp in the instrument cluster goes out.
The vehicle locks centrally once you have pulled
away. The locking knobs in the doors drop down. You can open the doors from the inside at any
time. It is only possible to move the DIRECT SELECT
selector lever from position
Pto the desired
selector lever position if you depress the brake
pedal. The parking lock is then deactivated and
the electrical parking brake is released auto-
matically. If the brake pedal is not depressed,
the DIRECT SELECT lever can still be moved but
the parking lock remains engaged.
Make sure that no charging cable is plugged in. The parking lock cannot be released if a charg-
ing cable is plugged in. Hill start assist
Hill start assist will aid you when pulling away on
a hill. It holds the vehicle for a short time after
you have removed your foot from the brake
pedal. This gives you enough time to move your foot from the brake pedal to the accelerator
pedal and depress it before the vehicle begins to
roll. G
WARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
R you are pulling away on a level road or on a
downhill gradient.
R the DIRECT SELECT lever is in position N.
R the electric parking brake is applied.
R ESP ®
is malfunctioning.
Further information on holding the vehicle sta-
tionary on uphill gradients (Y page 114). Transmission
Important safety notes
Shift the DIRECT SELECT lever to position P
when the drive system is switched off and the
vehicle is stationary. Park position Pis engaged
and the electric parking brake is applied auto-
matically: Transmission
111Driving and parking Z

If the DIRECT SELECT lever cannot be engaged
in park position P, the parking brake is engaged
automatically.
Observe the important safety notes on switch-
ing ESP ®
on and off (Y page 63). DIRECT SELECT lever
Overview of transmission positions 005D
Park position with parking lock
005E Reverse gear
005C Neutral
005B Drive
The DIRECT SELECT lever is on the right of the
steering column.
The DIRECT SELECT lever always returns to its
original position. The current transmission posi- tion P,R, Nor Dappears in the transmission
position display in the multifunction display
(Y page 112).
Transmission position and drive pro-
gram display The current transmission position and drive pro-
gram appear in the multifunction display. 0043
Transmission position display
0044 Drive program display The arrows in the transmission position display
show how and into which transmission positions
you can shift using the DIRECT SELECT lever.
If the transmission position display in the mul-
tifunction display is not working, you should pull
away carefully to check whether the desired
transmission position is engaged. Ideally, you
should select transmission position D.
Engaging park position P X
Push the DIRECT SELECT lever in the direction
of arrow P.
Transmission position display Pis shown in
the multifunction display.
When you have engaged park position P, make
sure that the transmission position display
shows Pin the multifunction display.
You can only engage park position Pwhen the
vehicle is stationary.
The transmission shifts into park position P
automatically if you open the driver's door when
the vehicle is stationary or when driving at very
low speed with the transmission in position Dor
R.
In addition, a warning tone sounds and a display
message is shown.
Depressing the brake and pushing the DIRECT
SELECT lever up or down disengages the park-
ing lock. The transmission is in Nneutral.
In order to shift from park position Pdirectly into
R or D:
R depress the brake pedal and
R push the DIRECT SELECT lever up or down
past the first point of resistance
Engaging reverse gear R !
Only shift into reverse gear
Rwhen the vehi-
cle is stationary. You could otherwise damage the drive system.
X Depress the brake and keep it pressed.
X Push the DIRECT SELECT lever up past the
first point of resistance. 112
TransmissionDriving and parking

Shifting to neutral N
G
WARNING
If children are left unsupervised in the vehicle, they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the transmission out of park position P
R start the vehicle's drive system.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
X If the transmission is in position Dor R: push
the DIRECT SELECT lever up or down to the
first point of resistance.
X If the transmission is in position P: depress
the brake pedal and push the DIRECT SELECT
lever up or down to the first point of resist-
ance.
When the drive system is switched off, the trans-
mission shifts to Nautomatically.
With the SmartKey: if you then open the driv-
er's door or the front-passenger door or remove
the SmartKey from the ignition, the transmis-
sion 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 neutral N, e.g. when having the vehicle cleaned in an
automatic car wash with a towing system:
X Vehicles with the Start-Stop button:
remove the Start-Stop button from the igni-
tion lock.
X Insert the SmartKey into the ignition lock.
X All vehicles: 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 SmartKey
in the ignition lock.
Engaging drive position D X
If the transmission is in position Ror N: push
the DIRECT SELECT lever down past the first
point of resistance.
X If the transmission is in position P: depress
the brake pedal and push the DIRECT SELECT lever down past the first point of resistance. Transmission positions
0045 Park position
This prevents the vehicle from rolling
away when stopped. Only move the
DIRECT SELECT lever to Pwhen the
vehicle is stationary.
The SmartKey can only be removed
when the DIRECT SELECT lever is in
position P. When there is no Smart-
Key in the ignition lock, the DIRECT
SELECT lever is locked in position P. 0046 Reverse gear
Only move the DIRECT SELECT lever
to Rwhen the vehicle is stationary. 0044 Neutral
No power is transmitted from the
drive system to the drive wheels.
Releasing the brakes will allow you to
move the vehicle freely.
If ESP ®
is faulty: only move the
DIRECT SELECT lever to Nif the vehi-
cle is in danger of skidding, e.g. on icy
roads. 003A Drive
For driving forwards Transmission
113Driving and parking Z

Driving tips
Holding the vehicle stationary on uphill
gradients Do not hold the vehicle stationary on uphill gra-
dients by depressing the accelerator pedal.
Instead, only ever hold the vehicle stationary on
uphill gradients by:
R depressing the brake pedal
R engaging the electric parking brake
Kickdown Use kickdown for maximum acceleration.
X Depress the accelerator pedal beyond the
pressure point.
The needle in the power display points to the
boost area (Y page 153).
X Ease off the accelerator pedal once the
desired speed is reached.
i Maximum acceleration is available for a limi-
ted time.
Rocking the vehicle free Shifting the transmission repeatedly between
gears
Dand Rmay help to free the vehicle if it
has become stuck in slush or snow. The vehi-
cle's engine management system limits the
speed to a maximum of 5 mph (9 km/h) when
shifting back and forth. To shift back and forth
between transmission positions Dand R, move
the DIRECT SELECT lever up and down past the
point of resistance. Program selector button
The program selector button allows you to
choose between drive programs with different
driving characteristics. X
Press program selector button 0043.
The selected drive program appears in the
multifunction display.
The transmission switches to automatic drive
program Eeach time the drive system is started. E
Economy Comfortable, economical
driving style
S
Sport Sporty driving style
E+
Economy
Plus Comfortable, particularly
economical driving style
Drive programs
Drive program E (Economy) Drive program
Eis characterized by the follow-
ing:
R the vehicle pulling away more gently in
forward gear unless the accelerator pedal is
depressed fully.
R reduced power on the accelerator pedal
increases sensitivity. This supports an even
and economical driving style.
R the wheels are less likely to spin.
R full power output by using kickdown.
Drive program S (Sport) Drive program
Sis characterized by the follow-
ing:
R the vehicle exhibits sporty driving character-
istics.
R the entire power output can be utilized by
depressing the accelerator pedal. 114
TransmissionDriving and pa
rking

E+ Economy Plus
Drive program
E+is characterized by the fol-
lowing:
R reduced torque and significantly reduced
power. This supports an especially efficient
and even driving style and results in a reduc-
tion in speed to approximately 70 mph
(110 km/h).
R the vehicle pulling away more gently in
forward gear unless the accelerator pedal is
depressed fully.
R the wheels are less likely to spin.
R particularly efficient overrun.
R full power output by using kickdown.
R the performance of air-conditioning system
and heating are reduced. Steering wheel paddle shifters
Manually adjustable recuperation 0043
Left-hand steering wheel paddle shifter -
0044 Right-hand steering wheel paddle shifter +
You can increase or reduce recuperation in over- run mode using the steering wheel paddle shift-
ers. When you remove your foot from the accel-
erator pedal, recuperation occurs. The electric
motor is then used as a alternator and energy is recovered while driving. The recuperated elec-
trical energy is stored in the high-voltage bat-
tery. A higher energy recuperation level means
that the vehicle is braked more powerfully.
If necessary, counteract the reduced regenera-
tive braking effect by applying the brake your-
self.
Information on the Recuperative Braking Sys-
tem (Y page 64). X
To decrease recuperation: pull right-hand
steering wheel paddle shifter 0044.
X To increase recuperation: pull left-hand
steering wheel paddle shifter 0043.
The various recuperation levels are shown in the
transmission position display once Dhas been
selected (Y page 112).
The following recuperation levels are available in
overrun mode:
R no recuperation (D +
, coasting mode)
R moderate recuperation ( D)
R high recuperation ( D-
)
R recuperation depending on the traffic situa-
tion (D AUTO
, radar-based)
You can see the intensity of recuperation in
overrun mode by reading the recuperation per-
formance value shown in the power display
(Y page 153).
Every time drive position Dis selected, the
transmission switches into recuperation level
D AUTO
automatically.
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 maximum
possible amount of kinetic
energy. D
Normal 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 in D.
Energy use when decelerating is
considerably higher than when
the vehicle is braked with the
brake pedal. D
AUTO
(radar-
based) The intensity of recuperation is
automatically adjusted to the cur-
rent traffic situation.
Default setting In levels
Dand D-
, deceleration can be control-
led in an infinitely variable manner using the
accelerator pedal. Transmission
115Driving and parking Z

The braking performance of the electric motor
using recuperative braking is, in some operating modes, either reduced or not effective:
R when the condition of charge of the high-volt-
age battery increases
R if the high-voltage battery is not yet at a nor-
mal operating temperature
R when driving close to the vehicle's maximum
design speed
R when the vehicle is almost stationary
R in transmission position N
R during 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, counteract the reduced
regenerative braking effect by applying the
brake yourself.
Radar-based recuperation The vehicle uses the Active Brake Assist sensors
during radar-based recuperation ( DAUTO
). The
sensors detect the distance to the vehicle ahead
and its speed. The intensity of recuperation is
then automatically adjusted to the current traf-
fic situation.
The range can then be increased by storing
energy efficiently. Adjustment is infinitely vari-
able from overrun mode (no recuperation) to
maximum recuperation.
Maintain sufficient distance to the vehicle in
front. Mercedes-Benz recommends that you
activate Active Brake Assist as a visual and
acoustic aid.
Examples of radar-based recuperation:
R Approaching a slower vehicle, a decelerating
vehicle or when following a vehicle downhill.
Your vehicle decelerates slightly and increa-
ses recuperation.
R Driving when no vehicle is detected in front or
when a vehicle is detected in the far distance or an accelerating vehicle is detected. Your
vehicle switches to overrun mode at higher
speeds.
R Driving on a steep downhill slope. Accelera-
tion downhill is reduced and recuperation is
increased. This is comparable with shifting
down when driving downhill. X
To activate radar-based recuperation: pull
steering wheel paddle shifter 0043or0044
towards you and hold for about one second.
X To deactivate radar-based recuperation:
briefly pull steering wheel paddle shifter 0043
or 0044 towards you.
If you change between radar-based and manual
recuperation, the following levels are activated
depending on the selection via the steering
wheel paddle shifters: 0043
Steering wheel
paddle shifter - selects
D-
(maximum
recuperation) 0044
Steering wheel
paddle shifter + selects
D+
(overrun) In particular, the function of the radar sensors
can be impaired in the case of:
R there is dirt on the sensors or anything else
covering the sensors
R there is snow or heavy rain
R there is interference by other radar sources
R there are strong radar reflections, for exam-
ple in parking garages
R a narrow vehicle is traveling in front, e.g. a
motorbike
R a vehicle is traveling in front on a different line
relative to the center of your vehicle
Following damage to the front end of the vehicle,
have the radar sensor settings and operation
checked at a qualified specialist workshop
immediately. This also applies to collisions at
slow speeds where there is no visible damage to the front of the vehicle.
If the radar sensors are not available, the system switches automatically to level Dwith moderate
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 116
TransmissionDriving and parking

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