2014 MERCEDES-BENZ B-CLASS HATCHBACK lock

Further information on daytime driving lights
(Y page 123).
Vehicle Setting permanent SPEEDTRONIC
You can set permanent SPEEDTRONIC using
the Limit
Limit speed speed(winter
(winter tyres)
tyres) function.
X Press the =or; button on the steer-
ing wheel to select the Settings
Settingsmenu.
X Press the :or9 button to select the
Vehicle
Vehicle submenu.
X Press ato confirm.
X Press :or9 to select the Limit
Limit
speed (winter tyres):
speed (winter tyres): function.
You will see the current setting.
X Press ato confirm.
X Press the :or9 button to adjust
permanent SPEEDTRONIC in increments of
ten (240 km/h 240 km/h to160 km/h
160 km/h ). TheOff
Offset-
ting switches permanent SPEEDTRONIC
off.
X Press the abutton to store the entry.
For further information on permanent SPEED- TRONIC (Y page 193).
Activating/deactivating the automatic
locking feature
X Press the =or; button on the steer-
ing wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Vehicle Vehicle submenu.
X Press ato confirm.
X Press :or9 to select the Auto‐
Auto‐
matic door locks:
matic door locks: function (vehicles
with a black and white multifunction dis-
play) or the Automatic door locks
Automatic door locks func-
tion (vehicles with a colour multifunction
display).
Vehicles with a black and white multifunc-
tion display: you see the selected setting on
on
or off off.
Vehicles with colour multifunction display:
when the Automatic Automatic door
doorlocks
locks function is activated, the vehicle doors are displayed
in orange in the multifunction display.
X Press the abutton to save the setting.
When you activate the Automatic door
Automatic door
locks:
locks: function (vehicles with a black and
white multifunction display) or the Auto‐
Auto‐
matic door locks
matic door locks function (vehicles with a
colour multifunction display), your vehicle is
centrally locked at speeds above approx-
imately 15 km/h.
For further information on the automatic lock-
ing feature; see (Y page 95).
Activating/deactivating the acoustic
locking confirmation
If you activate the Acoustic Acousticlock
lockfeedback
feedback
function (vehicles with a black and white mul-
tifunction display) or the Acoustic Lock
Acoustic Lock
function (vehicles with a colour multifunction display), an acoustic tone sounds when you
lock the vehicle.
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Vehicle
Vehicle submenu.
X Press ato confirm.
X Press :or9 to select the Acous‐
Acous‐
tic Lock feedback:
tic Lock feedback: function (vehicles
with a black and white multifunction dis-
play) or the Acoustic AcousticLock
Lockfunction (vehi-
cles with a colour multifunction display).
Vehicles with a black and white multifunc-
tion display: you see the selected setting on
on
or off off.
Vehicles with a colour multifunction dis-
play: if the Acoustic Acoustic Lock
Lockfunction is acti-
vated, the &symbol in the multifunction
display lights up orange.
X Press the abutton to save the setting. Menus and submenus
247On-board computer and displays Z

Heating
Auxiliary heating departure time
G
DANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac- tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from the wind. G
WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable materials such as leaves, grass or twigs may ignite if they come into contact
with:
R hot parts of the exhaust system
R the exhaust gas itself
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that:
R no flammable materials come into contact
with hot vehicle components
R the exhaust gas can escape from the
exhaust pipe unhindered
R the exhaust gas does not come into contact
with flammable materials.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for a longer
distance.
Only vehicles with auxiliary heating have this
function. In the
Heating
Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calcu-
lates the switch-on time according to the out-
side temperature so that the vehicle is pre-
heated by the departure time. When the
departure time is reached, the auxiliary heat- ing continues to heat for a further five
minutes and then switches off. The auxiliary
heating adopts the set air conditioning or
THERMOTRONIC temperature setting.
You can switch off the auxiliary heating by
using the remote control or the auxiliary heat- ing button on the centre console.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
Further information on auxiliary heating
(Y page 150).
Selecting the departure time or deactivat-
ing a selected departure time
X Press the =or; button on the steer-
ing wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Heating Heating submenu.
X Press ato confirm.
You will see the selected setting.
X Press ato confirm.
X Press the :or9 button to select
one of the three departure times or Timer
Timer
off
off (no timer active).
X Press ato confirm.
If a departure time is selected, the yellow
indicator lamp lights up on the auxiliary
heating button.
Changing the departure time
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Heating
Heating submenu.
X Press ato confirm.
You will see the selected setting. 248
Menus and submenusOn-board computer and displays

X
Press the :or9 button to select A
A,B
B
or Change C
Change C.
X Press ato confirm.
You can now change the departure time.
X Press the =or; button to select the
display to be changed: hours, minutes.
X Press the :or9 button to set the
selected display.
X Press the abutton to store the entry.
The yellow indicator lamp on the auxiliary
heating button lights up.
Comfort Switching belt adjustment on/off
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Convenience
Convenience submenu.
X Press ato confirm.
X Press the :or9 button to select the
Belt adjustment
Belt adjustment function.
Vehicles with a black and white multifunc-
tion display: you see the selected setting on
on
or off
off.
Vehicles with a colour multifunction dis-
play: when the Belt adjustment
Belt adjustment function
is activated, the vehicle seat belt is dis-
played in orange in the multifunction dis-
play.
X Press the abutton to save the setting.
For further information on belt adjustment,
see (Y page 45).
Switching the fold-in mirrors when lock-
ing function on/off
This function is only available when the vehi-
cle is equipped with the electrical fold-in func-
tion.
If you switch on the Fold
Fold mirrors mirrors in
inwhen
when
locking
locking function (vehicles with black and
white multifunction display) or the Auto.
Auto.
fold-in mirrors
fold-in mirrors function (vehicles with
colour multifunction display), the exterior mir- rors fold in when you lock the vehicle. If you unlock the vehicle and then open the driver's
or front-passenger door, the exterior mirrors
fold out again.
If you activate the Fold mirrors in when Fold mirrors in when
locking
locking function (vehicles with a black and
white multifunction display) or Auto. fold-
Auto. fold-
in mirrors
in mirrors function (vehicles with a colour
multifunction display) and fold in the exterior
mirrors using the button on the door
(Y page 116), they will not fold out automat-
ically. The exterior mirrors can then only be
folded out using the button on the door.
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Convenience
Convenience submenu.
X Press ato confirm.
X Press :or9 to select the Fold
Fold
mirrors
mirrors in
inwhen
when locking
locking function (vehi-
cles with a black and white multifunction
display) or the Auto. fold-in mirrors Auto. fold-in mirrors
function (vehicles with a colour multifunc-
tion display).
Vehicles with a black and white multifunc-
tion display: you see the selected setting on
on
or off off.
Vehicles with a colour multifunction dis-
play: if the Auto. Auto.fold-in
fold-in mirrors
mirrorsfunc-
tion is activated, the vehicle's exterior mir- ror is displayed in orange in the multifunc-
tion display.
X Press the abutton to save the setting.
Resetting to factory settings X
Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Factory setting
Factory setting submenu.
X Press ato confirm.
The Reset all settings?
Reset all settings? message
appears. Menus and submenus
249On-board computer and displays Z

Safety systems
Display messages
Possible causes/consequences and
M
MSolutions !÷
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual ABS (Anti-lock Braking System), BAS (Brake Assist System), ESP
®
(Electronic Stability Program), ESP ®
trailer stabilisation, the HOLD
function, hill start assist and PRE-SAFE ®
are temporarily unavail-
able.
The adaptive brake lights and COLLISION PREVENTION ASSIST
PLUS may also have failed.
In addition, the !,÷andå warning lamps may light up
in the instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient
G WARNING
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 may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Carefully drive on a suitable stretch of road, making slight steer-
ing movements, at a speed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. !÷
inoperative See inoperative See
Owner's Manual Owner's Manual ABS, BAS, ESP
®
, ESP ®
trailer stabilisation, the HOLD function, hill
start assist and PRE-SAFE ®
are not available due to a malfunction.
The adaptive brake lights and COLLISION PREVENTION ASSIST
PLUS may also have failed.
The !, ÷, åandJ warning lamps may also light up
in the instrument cluster.
ATTENTION ASSIST is deactivated.
G WARNING 252
Display messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions 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 may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. ÷
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual ESP
®
, ESP ®
trailer stabilisation, BAS, the HOLD function, hill start
assist and PRE-SAFE ®
are temporarily unavailable.
The adaptive brake lights and COLLISION PREVENTION ASSIST
PLUS may also have failed.
In addition, the ÷andå warning lamps may light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The self-diagnosis function, for example, may not be complete.
G WARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance may thus increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Carefully drive on a suitable stretch of road, making slight steer-
ing movements at a speed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. Display
messages
253On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions ÷
inoperative See inoperative See
Owner's Manual Owner's Manual ESP
®
, ESP ®
trailer stabilisation, BAS, the HOLD function, hill start
assist and PRE-SAFE ®
are not available due to a malfunction.
The adaptive brake lights and COLLISION PREVENTION ASSIST
PLUS may also have failed.
In addition, the ÷andå warning lamps may light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance may thus increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Visit a qualified specialist workshop. T!
÷
inoperative See inoperative See
Owner's Manual Owner's Manual EBD (electronic brake force distribution), ABS, BAS, ESP
®
, ESP ®
trailer stabilisation, the HOLD function, hill start assist and PRE-
SAFE ®
are not available due to a malfunction.
The adaptive brake lights and COLLISION PREVENTION ASSIST
PLUS may also have failed.
A warning tone sounds
In addition, the ÷,åand! warning lamps may light up
in the instrument cluster.
G WARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore
lock, for example, if you brake hard.
The steerability and braking characteristics may be severely affec-ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 254
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions !
Turn on the igni‐ Turn on the igni‐
tion to release tion to release
the parking brake the parking brake The red
!indicator lamp lights up.
You attempted to release the electric parking brake while the igni-
tion was switched off.
X Key: turn the key to position 1in the ignition lock.
X KEYLESS-GO: switch on the ignition. !
Release parking Release parking
brake brake The red
!indicator lamp flashes and a warning tone sounds. A
condition for automatic release of the electric parking brake is not
fulfilled (Y page 182).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. The red
!indicator lamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake (Y page 182). !
Parking brake See Parking brake See
Owner's Manual Owner's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake handle for at least ten seconds.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the selector
lever to P.
X Consult a qualified specialist workshop. Display
messages
255On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions !
Parking Parking
brake
brakeinop‐
inop‐
erative
erative The yellow
!warning lamp lights up. The red !indicator
lamp flashes for about ten seconds after the electric parking brake
has been applied or released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over- voltage or undervoltage.
X Rectify the cause of the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be applied or released: X Switch off the ignition and turn it back on.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop.
If it is still not possible to apply the electric parking brake: X Visit a qualified specialist workshop. The red
!indicator lamp flashes and the yellow !warning
lamp is lit.
It is not possible to apply the electric parking brake manually.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the selector
lever to P.
X Visit a qualified specialist workshop. J
Brake immediately Brake immediately Vehicles with manual transmission: a malfunction has occurred
while the HOLD function was activated.
A tone may also sound at regular intervals. If you attempt to lock the vehicle, the tone becomes louder.
You cannot start the engine.
X Paying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message disap-
pears.
X Secure the vehicle against rolling away (Y page 181).
You can restart the engine. 258
Display
messagesOn-board computer and displays