
The vehicle may otherwise begin to skid.
If you drive too fast, ESP ®
cannot reduce the
risk of an accident. ESP ®
cannot override the
laws of physics. G
WARNING
If the å warning lamp in the instrument
cluster lights up when the engine is running,
ESP ®
is deactivated or is unavailable due to a
malfunction. The risk that your vehicle may
start to skid then increases in certain situa-
tions.
Always adapt your driving style to the prevail-
ing road and weather conditions.
For further information about ESP ®
, see
(Y page 66).
X Start the engine.
X Press =or; on the steering wheel
to select the Assist. menu.
X Press 9or: to select ESP .
X Press the abutton.
X To deactivate: pressaagain.
The å warning lamp in the instrument
cluster comes on.
X To activate: pressaagain.
The å warning lamp in the instrument
cluster goes out.
Activating/deactivating the distance
warning signal X
Press the =or; button on the steer-
ing wheel to select the Assist. menu.
X Press 9or: to select Dist. warn‐
ing .
X Press the abutton.
The curren tselection is displayed.
X To activate/deactivate: pressa
again.
When the distance warning signal is activa-
ted, the multifunction display shows the
Ä symbol if the HOLD function is not acti-
vated (Y page 162). Vehicles with Active Parking Assist:
if
PARKTRONIC is activated and you are driving
at a speed under 35 km/h, the jActive
Parking Assist symbol is shown instead of the
Ä symbol ( Ypage 166).
For further information on the distance warn-
ing signal, see (Y page 63).
Activating/deactivating ATTENTION
ASSIST X
Press the =or; button on the steer-
ing wheel to select the Assist. menu.
X Press the 9or: button to select
Attention Asst. X
Press a.
The curren tselection is displayed.
X To activate/deactivate: pressa
again.
When ATTENTION ASSIST( Ypage 175) is
activated, the Àsymbol appears in the
multifunction display when the ignition is on.
Activating/deactivating Blind Spot
Assist X
Press the =or; button on the steer-
ing wheel to select the Assist. menu.
X Press the 9or: button to select
Blind Spot Asst. .
X Press a.
The curren tselection is displayed.
X To activate/deactivate: pressa
again.
For further information about Blind Spot
Assist, see (Y page 177).
Activating/deactivating Lane Keeping
Assist X
Press the =or; button on the steer-
ing wheel to select the Assist. menu.
X Press the 9or: button to select
Lane Keep. Asst. Menus and submenus
199On-board computer and displays Z
![MERCEDES-BENZ B-CLASS HATCHBACK 2011 Owners Manual X
Press the abutton to confirm.
X Press the :or9 button to select the
Dig. speedo [mph] function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
i Speed is dis MERCEDES-BENZ B-CLASS HATCHBACK 2011 Owners Manual X
Press the abutton to confirm.
X Press the :or9 button to select the
Dig. speedo [mph] function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
i Speed is dis](/manual-img/4/55448/w960_55448-203.png)
X
Press the abutton to confirm.
X Press the :or9 button to select the
Dig. speedo [mph] function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
i Speed is displayed in mph.
i Vehicles for the United Kingdom: this
function is not available.
The Dig. speedo [mph] function allows you
to choose whether the status area in the mul-
tifunction display always shows the speed in
mph instead of the outside temperature.
Selecting the permanent display function
You can determine whether the multifunction
display permanently shows your speed or the
outside temperature.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Inst. cluster submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Permanent display: function.
You will see the selected setting: outsidetemperature or
Dig. speedom [mph] .
X Press the abutton to save the setting.
i Speed is displayed in mph.
i Vehicles for the United Kingdom: this
function is not available.
Lights Switching the daytime driving lights on/
off
X Switch off the engine.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm. X
Press the :or9 button to select the
Daytime driving lights: function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
Further information on daytime driving lights
(Y page 97).
Switching the Intelligent Light System
on/off
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Intell. Light System: function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
When you activate the Intell. Light Sys‐
tem: function, you activat
ethe following:
R motorway mode
R active light function
R cornering light function
R extended range foglamps
If you set the dipped-beamh eadlamps for
driving on the right/left (Y page 201), the
multifunction display shows the Intell. Light System: System inoperative
Inactive for left-side traffic or
Intell. Light System: System inoper‐
ative Inactive for right-side traf‐
fic display message instead of the
Intell. Light System: function in the
Light sub-
menu.
Setting the dipped-beam headlamps for
driving on the left/right
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm. Menus and submenus
201On-board computer and displays Z

X
Press :or9 to select the Dipped headl. Setting for: function.
You will see the selected setting: Right-side traffic or
Left-side traffic .
X Press the abutton to save the setting.
When you change the setting, conversion
does not take place until the next time the
vehicle is stationary.
This function is only available on vehicles with
the Intelligent Light System.
You can use this function to switch between
symmetrical and asymmetrical dipped beam
(Y page 96).
If you set the dipped-beam headlamps for
driving on the right/left, then motorway
mode and the extended range foglamps are
not available.
You can also have the dipped-beam head-
lamps set for driving on the right/left at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
Switching Adaptive Highbeam Assist on/
off
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Adaptive Main-beam Assist: function.
You will see the selected setting: Activa‐ted or
Deactivated .
X Press the abutton to save the setting.
Activating/deactivating the surround
lighting and exterior lighting delayed
switch-off
If you have activated the Surround light‐ing: function and the light switch is set to
Ã, the following functions are activated
when it is dark:
R Surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the key. If you start the engine, the surround lighting is switched off and auto-
matic headlamp mode is activated
(Y
page 97).
R Exterior lighting delayed switch-off: the
exterior lighting remains lit for 60seconds
after the engine is switched off. If you close
all the doors and the tailgate, the exterior
lighting goes off after 15 seconds.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Surround lighting: function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
Deactivating delayed switch-off of the exte-
rior lighting temporarily:
X Before leaving the vehicle, turn the key to
position 0in the ignition lock.
X Turn the key to position 2in the ignition
lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the fol-
lowing light up:
R side lamps
R foglamps
R dipped-beam headlamps
R daytime driving lights
R surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Interior lighting delay sw. off: function, the interior light-202
Menus and submenusOn-board computer and displays

If the radars
ensor system is switched off,
Blind Spot Assist is deactivated
(Y page 177).
Convenience Switching the belt adjustment on/off
X
Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Convenience submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Belt adjustment: function.
You will see the selected setting: Activa‐ted or
Deactivated .
X Press the abutton to save the setting.
For further information on belt adjustment,
see (Y page 45).
Switching on/off the fold in mirrors when
locking function
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Convenience submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Fold mirrors in when locking: func-
tion.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
If you switch on the Fold mirrors in when
locking: function, the exterior mirrors fold
in when you lock the vehicle. When you
unlock the vehicle and then open the driver's
or front-passenger door, the exterior mirrors
fold out again.
If you have switched the function on and you
fold the exterior mirror sinusing the button
on the door (Y page 92), they will not fold out
automatically. The exterior mirrors can then
only be folded out using the button on the
door. Resetting to factory settings X
Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Factory setting submenu.
X Press the abutton to confirm.
The Reset all settings? message
appears.
X Press the :or9 button to select
No or
Yes .
X Press the abutton to confirm the selec-
tion.
If you have selected Yes , the multifunction
display shows a confirmation message.
For safety reasons, not all functions are reset:
the Limit speed (winter tyres): func-
tion in permanent SPEEDTRONIC can only be
set in the Vehicle submenu. If you want to
reset the Daytime driving lights: in the
Light submenu, you must turn the key in the
ignition lock to position 1.204
Menus and submenusOn-board computer and displays

Safety systems
Display messages Possible causes/consequences and
M Solutions
!÷
currently unavail‐
able See Owner's
Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability Pro-
gram), BAS (Brake Assist), PRE-SAFE ®
, the HOLD function, hill
start assist and ESP ®
trailer stabilisation are temporarily not avail-
able.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the ÷,åand! warning lamps 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.
This limits the steerability of the vehicle when braking and may
increase the braking distance.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of 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
Owner's Manual ABS, ESP
®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist
and ESP ®
trailer stabilisation are not available due to a malfunc-
tion.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the J,÷,åand! warning lamps light
up in the instrument cluster.
ATTENTION ASSIST is deactivated.
G WARNING 206
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore loc kifyou
brake hard, for example.
This limits the steerability of the vehicle when braking and may
increase the braking distance.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. ÷
currently unavail‐
able See Owner's
Manual ESP
®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist and
ESP ®
trailer stabilisation are temporarily not available.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the ÷andå warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The self-diagnosis function might not be complete, for example.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of 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
207On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
÷
inoperative See
Owner's Manual ESP
®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist and
ESP ®
trailer stabilisation are no tavailable due to a malfunction.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the ÷andå warning lamps 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.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of accident.
X Drive on carefully.
X Visi taqualified specialist workshop. T!
÷
inoperative See
Owner's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS, PRE-
SAFE ®
, the HOLD function ,hill start assist and ESP ®
trailer stabi-
lisatio nare not available due to a malfunction.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the ÷,åand! warning lamps in the instru-
ment cluster light up and a warning tone sounds.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but withou tthe
functions listed above. The wheels could therefore lock if you
brake hard, for example.
This limits the steerability of the vehicle when braking and may
increase the braking distance.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. !
Release parking
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 145).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. 208
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
The red
!indicato rlamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake (Y page 145). !
Parking brake See
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 te nseconds.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to P.
X Consult a qualified specialist workshop. The yellow
!warning lamp and the red !indicator lamp
are lit.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
or
X Vehicles with manual transmission: release the electric park-
ing brake using the automatic emergency release
(Y page 145).
X Vehicles with automatic transmission: release the electric
parking brake automatically ( Ypage 145).
If the yellow !warning lamp remains lit or continues to flash:
X Do not drive on.
X Consult a qualified specialist workshop. Display messages
209On-board computer and displays Z