wheel MERCEDES-BENZ B-CLASS HATCHBACK 2015 Owner's Manual

Observe the information on warning lamps
(Y page 218) and display messages which may
be shown in the instrument cluster
(Y page 190).
Only use wheels with the recommended tyre
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ®Characteristics of ESP
®
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the ÷ESP®
warning lamp
flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away, only depress the acceler-
ator pedal as far as is necessary.
X Adapt your driving style to suit the prevailing
road and weather conditions.
Deactivating/activating ESP ®Important safety notes
You can select between the following statuses
of ESP ®
:
R ESP ®
is activated
R ESP ®
is deactivated G
WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following.
It may be best to deactivate ESP ®
in the follow-
ing situations:
R when using snow chains
R in deep snow
R on sand or gravel
i Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehicle
if the vehicle starts to skid or a wheel starts to
spin. Deactivating/activating ESP
®
You can deactivate or activate ESP ®
via the on-
board computer (Y page 182).
ESP ®
deactivated:
The å ESP®
OFF warning lamp in the instru-
ment cluster lights up.
ESP ®
activated:
The å ESP®
OFF warning lamp in the instru-
ment cluster goes out.
Characteristics when ESP ®
is deactivated
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in the
instrument cluster flashes. In such situations,
ESP ®
will not stabilise the vehicle.
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability
R Engine torque is no longer limited and the
drive wheels are able to spin
The spinning of the wheels results in a cutting
action for better traction on loose surfaces.
R Traction control is still activated
R COLLISION PREVENTION ASSIST is no longer
available; nor is it activated if you brake firmly
with assistance from ESP ®
R PRE-SAFE ®
is no longer available; it is also not
activated if you brake firmly with assistance
from ESP ®
R ESP ®
still provides support when you brake
firmly EBD (electronic brake force distribu-
tion)
General notes EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
while braking.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 61). G
WARNING
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the risk of skidding and an accident. 66
Driving safety systemsSafety

You should therefore adapt your driving style
to the different handling characteristics. Have the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (Y page 216) as well as display
messages (Y page 192). ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to
the braking function, ADAPTIVE BRAKE also has
the HOLD function (Y page 154) and hill start
assist (Y page 128). STEER CONTROL
General notes STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilisation.
This steering support is provided in particular if:
R both right wheels or both left wheels are on a
wet or slippery road surface when you brake
R the vehicle starts to skid
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 61).
No steering support is provided from STEER
CONTROL, if: R ESP ®
is malfunctioning
R the steering is faulty
If ESP ®
is malfunctioning, you will be assisted
further by the electrical power steering. Recuperative Brake System
G
WARNING
In the event of malfunctions in the Recupera- tive Brake System, the following may occur: R
the braking performance of the electric
motor may be either reduced or not effec-
tive
R brake pedal resistance may be lower than
usual
R pedal travel may be longer than usual
If you do not make an additional effort to apply the brake yourself, the braking effect may not
be sufficient. There is a risk of an accident.
In the event of a malfunction, depress the
brake pedal further. The brake system is still
fully functional.
Observe the important safety notes on driving
safety systems (Y page 61).
The Recuperative Brake System converts the
kinetic energy when braking into electrical
energy. The electric motor is used as an alter-
nator during braking. This electrical energy is
then stored in the high-voltage battery.
You can find information about manually adjust- able recuperation under "Steering wheel gear-
shift paddles" (Y page 132).
If the warning light in the instrument cluster is lit up, there is a motor malfunction or a brake mal-
function.
Observe information regarding indicator and
warning lamps (Y page 215) as well as display
messages (Y page 190). Protection against theft
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
X To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO start func-
tion or KEYLESS-GO:
switch the ignition off
and open the driver's door.
X To deactivate: switch on the ignition.
When leaving the vehicle, always take the key
with you and lock the vehicle. Anyone can start
the drive system if a valid key has been left
inside the vehicle.
i The immobiliser is always deactivated when
you start the drive system. Protection against theft
67Safety Z

X
To deactivate: press and hold button :for
approximately five seconds until a tone
sounds.
X To activate: press and hold button ;for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing.
You could therefore be locked out if:
R the vehicle is being pushed
R the vehicle is being towed
R the vehicle is being tested on a dynamometer
You can also activate and deactivate the auto-
matic locking function using the on-board com- puter (Y page 187). Unlocking the driver's door (emer-
gency key element)
If the vehicle can no longer be unlocked with the key or KEYLESS-GO, use the emergency key ele-
ment.
If you use the emergency key element to unlock
and open the driver's door, the anti-theft alarm
system will be triggered (Y page 68).
X Take the emergency key element out of the
key (Y page 73).
X Insert the emergency key element into the
lock of the driver's door as far as it will go. X
Turn the emergency key element anti-clock-
wise as far as it will go to position 1.On right-hand-drive vehicles, turn the emer-
gency key element clockwise.
The door is unlocked.
X Turn the emergency key element back and
remove it.
X Insert the emergency key element into the
key (Y page 74). Locking the vehicle (emergency key
element)
If the vehicle can no longer be locked with the
key or KEYLESS-GO, use the emergency key ele-
ment.
X Open the driver's door.
X Close the front-passenger door, the rear
doors and the tailgate.
X Press the locking button on the driver’s door
(Y page 79).
X Check whether the locking knobs on the
front-passenger door and the rear doors are
still visible. Press the locking knobs down by
hand if necessary.
X Close the driver's door.
X Take the emergency key element out of the
key (Y page 73).
X Insert the emergency key element into the
lock of the driver's door as far as it will go. X
Turn the emergency key element clockwise as
far as it will go to position 1.
On right-hand-drive vehicles, turn the emer-
gency key element anti-clockwise.
X Turn the emergency key element back and
remove it.
X Make sure that the doors and the tailgate are
locked.
X Insert the emergency key element into the
key (Y page 74). 80
DoorsOpening and closing

Useful information
i This Owner's Manual describes all models,
series and optional equipment for your vehi-
cle that were available at the time of going to
press. National variations are possible. Note
that your vehicle may not be equipped with all
of the functions described. This is also the
case for systems and functions relevant to
safety.
i Read the information on qualified specialist
workshops: (Y page 23). Correct driver's seat position
G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. X
Observe the safety notes on seat adjustment
(Y page 87).
X Make sure that seat =is correctly adjusted.
Manual seat adjustment (Y page 88)Electrical seat adjustment (Y
page 88)
When adjusting the seat, make sure that:
R you are as far away from the driver's airbag
as possible
R you are sitting in a normal upright position
R you can fasten the seat belt properly
R you have moved the backrest to an almost
vertical position
R you have set the seat angle so that your
thighs are gently supported
R you can depress the pedals properly
X Check whether the head restraint is adjusted
correctly (Y page 89).
When doing so, make sure that you have
adjusted the head restraint so that the back of
your head is supported at eye level by the
centre of the head restraint.
X Observe the safety notes on steering column
adjustment (Y page 92).
X Make sure that steering wheel :is adjusted
correctly.
Adjusts the steering wheel (Y page 92)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent
R you can move your legs freely
R you can see all the displays in the instru-
ment cluster clearly
X Observe the safety guidelines for seat belts
(Y page 36).
X Check whether you have fastened seat
belt ;properly (Y page 37).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your shoul-
der
R be routed across your hips in the pelvic
area
X Before starting off, adjust the rear-view mirror
and the exterior mirrors (Y page 93) so that
you have a good view of road and traffic con-
ditions.
X Vehicles with a memory function: save the
seat and exterior mirror settings
(Y page 96). 86
Correct driver's seat positionSeats, steering wheel and mirrors

Seats
Important safety notes
G
WARNING
If children adjust the seats, they could
become trapped, especially if they are unat-
tended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The seats can still be adjusted when there is no
key in the ignition lock. G
WARNING
When adjusting a seat, you or another vehicle occupant could become trapped by the guiderail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it.
Observe the safety notes on "Airbags"
(Y page 39) and "Children in the Vehicle"
(Y page 49). G
WARNING
If the driver's seat is not correctly engaged, it could unexpectedly move while driving. This
could cause you to lose control of the vehicle. There is a risk of an accident.
Always ensure that the driver's seat is
engaged before starting the vehicle. G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If liquid
is spilled on the seats, dry them as soon aspossible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers, child seats or booster seats.
! Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
i Further related subjects:
R Luggage compartment enlargement (fold-
ing down the rear seats) (Y page 228) Seats
87Seats, steering wheel and mirrors Z

Adjusting the seats manually
Vehicles without the seating comfort
package Seat fore-and-aft adjustment:
X Lift handle :and slide the seat forwards or
backwards.
X Release lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle: X Relieve the pressure on the backrest.
X Turn handwheel =forwards or backwards.
Seat height: X Pull handle ;upwards or push it down
repeatedly until the seat has reached the
desired height.
Vehicles with the seating comfort pack-
age Seat fore-and-aft adjustment:
X
Lift handle :and slide the seat forwards or
rearwards.
X Release lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle:
X Relieve the pressure on the backrest.
X Turn handwheel Aforwards or backwards.
Seat height: X Pull handle ?upwards or push it down
repeatedly until the seat has reached the
desired height.
Seat cushion angle: X Adjust the angle so that your thighs have gen-
tle support.
X Turn handwheel =forwards or backwards.
Seat cushion length:
X Lift handle ;and slide the front part of the
seat cushion forwards or backwards.
X Release lever ;again.
The seat cushion engages. Adjusting the seats electrically
:
Seat height
; Seat cushion angle
= Seat fore-and-aft adjustment
? Backrest angle
i You can store the seat settings using the
memory function (Y page 96).88
SeatsSeats
, steering wheel and mirrors

Adjusting the head restraints
Important safety notes G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off.
Adjust the head restraint fore-and-aft position
so that it is as close as possible to the back of
your head.
Adjusting the head restraints manually Adjusting the head restraint height X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :in the direc-
tion of the arrow and push the head restraint down to the desired position.
Adjusting the head restraint fore-and-aft
position This function allows you to adjust the distance
between the head restraint and the back of the
head.
X To move forwards: pull the head restraint
forwards in the direction of the arrow until it
engages.
There are a number of detents.
X To move backwards: press and hold release
button :and push the head restraint back-
wards.
X When the head restraint is in the desired posi-
tion, release the button and make sure that
the head restraint is engaged in position.
Rear seat head restraints Adjusting the rear seat head restraint
height Seats
89Seats, steering wheel and mirrors Z

X
To raise: pull the head restraint up to the
desired height.
X To lower: press release catch :and push
the head restraint down until it is in the
desired position.
Removing and fitting the rear seat head
restraints X
Fold the seat backrest slightly forwards in
order to remove the head restraint
(Y page 228).
X To remove: pull the head restraint up to the
stop.
X Press release catch :and pull the head
restraint out of the guides.
X To refit: insert the head restraint so that the
notches on the bar are on the left when
viewed in the direction of travel.
X Push the head restraint down until you hear it
engage in position. Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum sup-
port for your back. :
Raises the backrest contour
; Softens the backrest contour
= Lowers the backrest contour
? Hardens the backrest contour Switching the seat heating on/off
Switching on/off G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or a limited ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk of
injury.
Therefore, do not switch on the seat heating
repeatedly. The three red indicator lamps in the button indi-
cate the heating level you have selected.
The system automatically switches down from
level 3to level 2after approximately eight
minutes. 90
SeatsSeats, steering
wheel and mirrors

The system automatically switches from level
2
to level 1after approximately ten minutes.
The system automatically switches off approx-
imately 20 minutes after it is set to level 1.
X Turn the key to position 1or 2in the ignition
lock (Y page 126).
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off. Seats
91Seats, steering wheel and mirrors Z

Problems with the seat heating
Problem
Possible causes/consequences and
M
MSolutions The seat heating has
switched off prematurely
or cannot be switched
on. The on-board voltage is too low because too many electrical consum-
ers are switched on.
X Switch off electrical consumers that you do not need, such as the
rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat heating will switch
back on automatically. Steering wheel
Important safety notes
G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. Adjusting the steering wheel
G
WARNING
The steering wheel may move unexpectedly if you adjust it while driving. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Make sure that the steering wheel is locked
before driving off. Never unlock the steering
wheel when the vehicle is in motion. :
Release lever
; Adjusts the steering wheel height
= Adjusts the steering wheel position (fore-
and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired posi-
tion.
X Push release lever :up as far as it will go.
The steering column is locked.
X Check if the steering column is locked. When
doing so, try to push the steering wheel up or down or try to move it in the fore-and-aft
direction. 92
Steering wheelSeats, steering wheel and mirrors