steering MERCEDES-BENZ B-Class 2017 W246 Owner's Guide

R
Immediately change out of clothing which
has come into contact with electrolyte.
R If an allergic reaction occurs, seek medical
attention immediately.
The "Automatic anti-glare mirrors" function is
only available if the vehicle is equipped with the
"Mirrors package".
The rear-view mirror and the exterior mirror on
the driver's side automatically go into anti-glare mode if:
R the ignition is switched on and
R incident light from headlamps strikes the sen-
sor in the rear-view mirror
The mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior lighting
is switched on. Parking position for the exterior mir-
ror on the front-passenger side
Setting and storing the parking position You can set the front-passenger side exterior
mirror such that you can see the rear wheel on
that side as soon as you engage reverse gear.
You can store this position.
0043
Button for the driver's side exterior mirror
0044 Button for the front-passenger side exterior
mirror
0087 Button for the exterior mirror setting
0085 Memory button M
X Make sure that the vehicle is stationary.
X Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Press button 0044. X
Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the default parking position.
X Use button 0087to adjust the exterior mirror to
a position that allows you to see the rear
wheel and the curb.
The parking position is stored.
i If you shift the transmission to another posi-
tion, the front-passenger side exterior mirror
returns to the driving position.
Calling up a stored parking position set- ting X
Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Adjust the front-passenger side exterior mir-
ror using the corresponding button
(Y page 84).
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger side
moves back to its original position:
R as soon as you exceed a speed of 9 mph
(15 km/h)
R about ten seconds after you have disengaged
reverse gear
R when you use button 0043to select the exterior
mirror on the driver's side Memory function
Important safety notes
G
WARNING
If you use the memory function on the driver's side while driving, you could lose control of
the vehicle as a result of the adjustments
being made. There is a risk of an accident.
Only use the memory function on the driver's
side when the vehicle is stationary. G
WARNING
When the memory function adjusts the seat,
you and other vehicle occupants – particularly children – could become trapped. There is a
risk of injury. Memory function
85Seats, steering wheel and mirrors
Z

While the memory function is making adjust-
ments, make sure that no one has any body
parts in the sweep of the seat. If somebody
becomes trapped, immediately release the
memory function position button. The adjust- ment process is stopped. G
WARNING
Children could become trapped if they acti-
vate the memory function, particularly when
unattended. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never leave children unsupervised in the vehicle.
The memory function can be used at any time,
e.g. even when the SmartKey is not in the igni-
tion lock. Storing settings
With the memory function, you can store up to
three different settings, e.g. for three different
people.
The following settings are stored as a single
memory preset:
R seat and backrest position
R driver's side: position of the exterior mirrors
on the driver's and front-passenger sides X
Adjust the seat (Y page 80).
X Adjust the exterior mirror on the driver's side
(Y page 84).
X Briefly press the Mmemory button and then
press preset position button 1,2or 3within
three seconds.
The settings are stored in the selected preset
position. A tone sounds when the settings
have been completed. Calling up a stored setting
X Press and hold the relevant preset position
button 1,2or 3until the seat and exterior
mirrors are in the stored position.
i The setting procedure is interrupted as soon
as you release the storage position button. 86
Memory functionSeats, steering wheel and mirrors

Hazard warning lamps
X
To switch on the hazard warning lamps:
press button
0043.
All turn signals flash. If you now switch on a
turn signal using the combination switch, only the turn signal lamp on the corresponding
side of the vehicle will flash.
X To switch off the hazard warning lamps:
press button
0043.
The hazard warning lamps automatically switch
on if:
R an air bag is deployed or
R the vehicle decelerates rapidly from a speed
of above 45 mph (70 km/h) and comes to a
standstill
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of above
6 mph (10 km/h) again after a full brake appli-
cation.
The hazard warning lamps still operate if the
ignition is switched off. Cornering light function
The cornering light function improves the illu-
mination of the road over a wide angle in the direction you are turning, enabling better visi-
bility in tight bends, for example. It can only be
activated when the low-beam headlamps are
switched on.
Active:
R if you are driving at speeds below 25 mph
(40 km/h) and switch on the turn signal or
turn the steering wheel
R if you are driving at speeds between 25 mph
(40 km/h) and 45 mph (70 km/h) and turn
the steering wheel
The cornering lamp may remain lit for a short
time, but is automatically switched off after no
more than three minutes. Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the headlamp. Interior lighting
Overview of interior lighting
Front overhead control panel 0043
003D Switches the left-hand front reading
lamp on or off
0044 004A Switches the front interior lighting on
0087 0043 Switches the rear interior lighting on or
off
0085 0033 Switches the front interior lighting/
automatic interior lighting control off
0083 003D Switches the right-hand front reading
lamp on or off
0084 Switches the automatic interior lighting con-
trol on Interior lighting
89Lights and windshield wipers Z

Notes on breaking-in a new vehicle
The sensor system of some driving and driving
safety systems adjusts automatically while a
certain distance is being driven after the vehicle
has been delivered or after repairs. Full system
effectiveness is not reached until the end of this teach-in procedure.
New and replaced brake pads and discs only
reach their optimum braking effect after several
hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal. Driving
Important safety notes
G
WARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use loose floormats and do not place floormats on
top of one another. G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. 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. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
! 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.
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 maximum 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.
Before commencing your journey, ensure that
the charging cable required for charging the
high-voltage battery is in the vehicle. 108
DrivingDriving an
d parking

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

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

G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the transmission out of park position
P.
R start 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 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 secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R the transmission must be in position P.
R the SmartKey in the ignition lock must be
turned to position 0and removed from the
ignition lock.
R on uphill or downhill gradients, the front
wheels must be turned towards the curb. Switching off the drive system
G
WARNING
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. X
Shift the DIRECT SELECT lever to position P.
X With the SmartKey: turn the SmartKey to
position 0in the ignition lock and remove it.
The immobilizer is activated.
X With the Start/Stop button: press the
Start/Stop button (Y page 109).
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 SmartKey position 1. When the
driver's door is open, this corresponds to
SmartKey position 0: "Key removed".
If you switch the engine off with the transmis-
sion in position Ror D, the transmission auto-
matically shifts to N.
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. Parking
129Driving and parking Z

Releasing automatically
Your vehicle's electric parking brake is auto-
matically released if all of the following condi-
tions are met:
R the vehicle has been started.
R the transmission is in position Dor R.
R the seat belt has been 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
2 mph (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 0043of the electric
parking brake (Y page 130).
The vehicle is braked as long as you keep
handle 0043of the electric parking brake
pressed. The longer the electric parking brake
handle 0043is 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 0049(USA only) or 0024(Canada
only) indicator lamp in the instrument cluster
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.
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. G
WARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicleis stationary.
Observe the legal requirements for the country
in which you are driving. Some jurisdictions pro- hibit the driver from using a mobile phone while
driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a
distance of 44 ft (approximately 14 m)per sec-
ond. Driving tips
131Driving and parking Z