display MERCEDES-BENZ B-CLASS HATCHBACK 2011 Service Manual

Problem Possible causes/consequences and
M Solutions
The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
or
The key battery is discharged.
X
Unlock the vehicle (Y page 72).
or
X Unlock the vehicle using the emergency key element
(Y page 73). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X
Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
Only remove the key from the ignition lock
when the vehicle is stationary, as you cannot
steer the vehicle when the key is removed.
Never leave children unsupervised in the vehi-
cle. They might release the electric parking
brake. This could lead to aserious or fatal
accident. G
WARNING
Under no circumstances should the exhaust
system come into contact with flammable
materials such as dry grass or petrol, for
example. Do not park the vehicle on dry grass-
land or harvested grain fields. The hot exhaust
system could otherwise ignite the flammable
material and set the vehicle on fire.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R on vehicles with manual transmission,
engage first gear or reverse gear.
R on vehicles with automatic transmission,
the transmission must be in position Pand
the transmission position display must
show Pin the multifunction display. R
the key must be removed from the ignition
lock.
R on uphill or downhill gradients, turn the
fron twheels towards the kerb. Switching off the engine
Important safety notes G
WARNING
If the engine is not running, there is no power
assistance for the steering and brakes. Steer-
ing and braking then requires significantly
greater effort.
As a result, you might lose control of the vehi-
cle, cause an accident and injure yourself and
others.
Therefore, do not switch off the engine while
you are driving.
Vehicles with manual transmission X
Shift to either first gear or reverse gear R.
X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
X Apply the electric parking brake. 144
ParkingDriving and parking

The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off: cruise control is
selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected. :
To activate or increase speed
; LIM indicator lamp
= To activate the curren tspeed/last stored
speed
? To activate or reduce speed
A To switch between cruise control and var-
iable SPEEDTRONIC
B To deactivate cruise control
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds. The segments between the
stored speed and the maximum speed then
light up in the multifunction display.
Activation conditions To activate cruise control, all of the following
activation conditions must be fulfilled:
R
the electric parking brake must be
released.
R you must be driving faster than 30 km/h.
R ESP ®
must be switched on, but not inter-
vening.
R on vehicles with automatic transmission,
the selector lever must be in position D.R
on vehicles with manual transmission, a
gear must be engaged.
R cruise control must be selected.
X To select cruise control: check that LIM
indicator lamp ;is off.
If it is off, cruise control is already selected.
If it is not, press the cruise control lever in
the direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Cruise control is selected.
Storing, maintaining and calling up a
speed Storing and maintaining the current
speed
You can store the curren
tspeed if you are
driving faster than 30 km/h.
X Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever
up : or down ?.
X Remove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the speed.
i Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise contro lmaintains the
stored speed on downhill gradients by
automatically applying the brakes.
i Vehicles with manual transmission:
R always drive at adequate, but no texces-
sive, engine speeds.
R change gear in good time.
R if possible, do not change down several
gears at a time. 150
Driving systemsDriving an
d parking

Storing the current speed or calling up the
last stored speed
G
WARNING
Only call up a stored speed if you know what
that speed is and if it is suitable for the current
traffic and driving situation. You can other-
wise endanger yourself or others by uninten-
tionally triggering sudden acceleration or
braking.
X Briefly pull the cruise control lever towards
you =.
X Remove your foot from the accelerator
pedal.
The first time cruise control is activated, it
stores the current speed or regulates the
speed of the vehicle to the previously
stored speed.
Setting aspeed X
Press the cruise control lever up :for a
highe rspeed or down ?for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached.
X Release the cruise control lever.
The new speed is stored.
X To adjust the set speed in 1 km/h incre-
ments: briefly press the cruise control
lever up :or down ?to the pressure
point.
The last stored speed increases or decrea-
ses in 1 km/h increments.
X To adjust the set speed in 10 km/h
increments: briefly press the cruise con-
trol lever up :or down ?beyond the
pressure point.
The last stored speed increases or decrea-
ses in 10 km/h increments.
i Cruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overtake,
cruise control adjusts the vehicle's speed
to the last speed stored after you have fin-
ished overtaking. Deactivating cruise control There are several ways to deactivate cruise
control:
X
Briefly press the cruise control lever for-
wards B.
or
X Brake
or
X Briefly press the cruise control lever in the
direction of arrow A.
Variable SPEEDTRONIC is selected. LIM
indicator lamp ;in the cruise contro llever
lights up.
Cruise control is automatically deactivated if:
R you engage the electric parking brake.
R you are driving at less than 30 km/h.
R ESP ®
intervenes or if you deactivate ESP ®
.
R while driving a vehicle with manual trans-
mission, you shift into neutral or depress
the clutch pedal for longer than six sec-
onds.
R on vehicles with manual transmission, you
shift to a gear that is too high, and as a
result the engine speed is too low.
R on vehicles with automatic transmission,
you shift into position Nwhile driving.
If cruise control is deactivated, you will hear
a warning tone. You will see the Cruise control off message in the multifunction
display for approximately five seconds.
i The last speed stored is cleared when you
switch off the engine. SPEEDTRONIC
General notes SPEEDTRONIC brakes automatically so that
you do not exceed the set speed. You must
select a low gear in good time on long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer. For vehi-
cles with automatic transmission, you need Driving systems
151Driving and parking Z

It is not possible to deactivate variable
SPEEDTRONIC by braking.
X Check whether LIM indicator lamp ;is on.
If it is on, variable SPEEDTRONIC is already
selected.
If it is not, press the cruise control lever in
the direction of arrow A.
LIM indicator lamp ;in the cruise control
lever lights up. Variable SPEEDTRONIC is
selected.
X Make sure that the accelerator pedal is not
depressed beyond the pressure point.
Storing the current speed
You can use the cruise control lever to limit
the speed to any speed above 30 km/h while
the engine is running.
X Briefly press the cruise control lever
up : or down ?.
The current speed is stored. For five sec-
onds, the multifunction display shows the
stored speed, e.g. Limit 100 km/h .
The segments in the speedometer lightup
from the start of the scale up to the stored
speed.
Storing the current spee dorcalling up the
last stored speed G
WARNING
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current driving and traffic situation. Other-
wise, sudden braking could endanger you or
others.
X Briefly pull the cruise control leve rtowards
you =.
X To adjust the set speed in 1 km/h incre-
ments: briefly press the cruise control
lever up :to the pressure point for a
higher speed, or down ?for a lower speed.
or
X Keep the cruise control lever pressed to the
pressure point until the desired speed is set. Press the cruise control lever up
:for
a higher speed or down ?for a lower
speed.
X To adjust the set speed in 10 km/h
increments: briefly press the cruise con-
trol lever up :past the pressure point for
a higher speed, or down ?for a lower
speed.
or
X Keep the cruise control lever pressed
beyond the pressure point until the desired
speed is set. Press the cruise control lever
up : for a higher speed or down ?for a
lower speed.
Deactivating variable SPEEDTRONIC G
WARNING
It is not possible to deactivate variable Speed-
tronic by braking.
There are several ways to deactivate variable
SPEEDTRONIC:
X Briefly press the cruise control lever for-
wards B.
or
X Briefly press the cruise control lever in the
direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated.
Cruise control or DISTRONIC PLUS is selec-
ted.
Variable SPEEDTRONIC is automatically
deactivated if:
R you depress the accelerator pedal beyond
the pressure point (kickdown), but only if
your current speed does not differ by more
than 20 km/h from the stored speed. You
will hear a warning tone if this is the case.
R on vehicles with manual transmission, if
you shift to a higher gear and as a result,
the engine speed is too low.
i The last speed stored is cleared when you
switch off the engine. Driving systems
153Driving and parking Z

Permanent SPEEDTRONIC
You can use the on-board computer to limit
the speed permanently to avalue between
160 km/h(e.g. for driving on winter tyres) and
the maximum speed ( Ypage 203).
Shortly before the store dspeed is reached, it
appears in the multifunction display.
Permanent SPEEDTRONIC remains active,
even if variable SPEEDTRONIC is deactivated.
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). DISTRONIC PLUS
Important safety notes G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
DISTRONIC PLUS is only an aid designed to
assist driving. The driver remains fully respon-
sible for the vehicle's distance from other
vehicles, the vehicle's speed and for braking
in good time.
DISTRONIC PLUS does not react in particular
to:
R pedestrians
R stationary obstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossing traffic
DISTRONIC PLUS may not detect narro wvehi-
cles driving in front, e.g. motorcycles, or vehi-
cles driving on a differen tline. Therefore,
always pay attention to traffic conditions even
when DISTRONIC PLUS is activated. Other-
wise, you may fail to recognise dangers in
time, cause an accident and injure yourself
and others. G
WARNING
DISTRONIC PLUS cannot tak eaccount of road
and traffic conditions. If DISTRONIC doe snot
recognise or no longer recognises the vehicle
in front, do not activate DISTRONIC or, if it is
already active, deactivate it. This is especially
the case:
R before corners
R on filter lanes
R when changing to a lane with faster moving
traffic
R in complex driving situations or where lanes
are diverted, e.g. at roadworks on a motor-
way
DISTRONIC PLUS otherwise maintains the
current speed set by you or accelerates up to
the set speed.
DISTRONIC PLUS cannot take account of
weather conditions. Deactivate, or do not
activate, DISTRONIC PLUS:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip when
braking or accelerating. The vehicle could
start to skid.
R if the sensors are dirty or there is poor vis-
ibility, e.g. due to snow, rain or fog. Dis-
tance control may be impaired.
Always pay attention to traffic conditions
even when DISTRONIC PLUS is activated.
Otherwise, you may fail to recognise dangers
in time, cause an accident and injure yourself
and others. G
WARNING
DISTRONIC PLUS brakes your vehicle up to a
maximum of 4 m/s 2
depending on its speed.
This corresponds to approximately 40% of
your vehicle's maximum braking power. You
must also apply the brakes yourself if this
braking power is not sufficient.
If DISTRONIC PLUS detects a risk of collision
with avehicle in front, an intermittent warning
tone sounds. In addition, the ·distance
warning lamp in the instrument cluster lights
up. Brake to avoid a collision. 154
Driving systemsDriving and parking

Activating DISTRONIC PLUS
;storing,
maintaining and calling up aspeed Activation conditions
To activate DISTRONIC PLUS, all of the fol-
lowing activation conditions mus
tbe fulfilled:
R the engine must be running. It may take up
to two minutes of driving before DIS-
TRONIC PLUS is ready for use.
R the electric parking brake must be
released.
R ESP ®
must be switched on, but not inter-
vening.
R the transmission must be in position D.
R the driver's door must be closed when you
shift from Pto Dor your seat belt must be
fastened.
R the front-passenger door and the rear
doors must be closed.
R the vehicle must not be skidding.
Switching on
To activate while driving: you can only acti-
vate DISTRONIC PLUS at speeds below
20 km/hi fthe vehicle in front is detected and
shown in the multifunction display. If the vehi-
cle in front is no longer detected and dis-
played, DISTRONIC PLUS switches off and
you will hear a tone.
X Briefly pull the cruise control level towards
you ?, or press it up :or down A.
DISTRONIC PLUS is selected.
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
X Remove your foot from the accelerator
pedal.
Your vehicle adapts its speed to that of the
vehicle in front, but only up to the desired
stored speed.
i If you do not fully release the accelerator
pedal, the DISTRONIC PLUS inactive message appears in the multifunction dis-
play.T
he set distance to a slower-moving
vehicle in front will then not be maintained. You will be driving at the speed you deter-
mine by the position of the accelerator
pedal.
To activate when driving towards a sta-
tionary vehicle: if the vehicle in front is sta-
tionary, you can only activate DISTRONIC
PLUS if your vehicle is also stationary.
X Briefly pull the cruise control level towards
you ?, or press it up :or down A.
DISTRONIC PLUS is selected.
i DISTRONIC PLUS can only be activated at
under 20 km/h if a vehicle in front has been
detected. It is therefore helpful to have the
DISTRONIC PLUS distance display activa-
ted in the multifunction display
(Y page 198).
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
i You can use the cruise control lever to set
the stored speed and the control on the
cruise control lever to set the specified
minimum distance (Y page 159). Displaying DISTRONIC PLUS in the speedometer
When DISTRONIC PLUS is activated, one or
two segments
;in the set speed range light
up.
i For design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for DISTRONIC PLUS.
If DISTRONIC PLUS detectsav ehicle in front,
segments ;between speed of the vehicle in
front :and stored speed =light up. 156
Driving systemsDriving and parking

Distance display with DISTRONIC PLU
Sactivated
in the multifunction display
: DISTRONIC PLUS activated
; Own vehicle
= Specified minimum distance to the vehi-
cle in front; adjustable
? Vehicle in front, if detected
In the Assistance menu (Y page 198) of the
on-board computer, you can select the dis-
tance display.
X Select the Distance display function
using the on-board computer
(Y page 198).
i You will see the stored speed for about
five seconds whe nyou activate DISTRONIC
PLUS.
Driving G
WARNING
If you depress the brake, DISTRONIC PLUS is
deactivated unless your vehicle is stationary.
DISTRONIC PLUS then no longer brakes your
vehicle. In such cases, control the distance
from vehicles travelling in front with the brake
alone. You could otherwise cause an accident
and thereby injure yourself and others. The
driver remains fully responsible for the vehi-
cle's distance from other vehicles, the speed
being driven and for braking in good time. Pulling away
X
If the vehicle in front pulls away: remove
your foot from the brake pedal.
X Briefly pull the cruise control lever
(Y page 155) towards you.
or
X Accelerate briefly.
Your vehicle pulls away and adapts its
speed to that of the vehicle in front.
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control.
If DISTRONIC PLUS detects that the vehicle
in front has slowed down, it brakes your vehi-
cle. In this way, the distance you have selec-
ted is maintained.
If DISTRONIC PLUS detects that the vehicle
in front is driving faster, it accelerates your
vehicle, but only up to the speed you have
stored.
Changing lane G
WARNING
DISTRONIC PLUS is only an aid designed to
assist driving.
It is not a substitute for attentive driving. The
driver remains fully responsible for the vehi-
cle's distance from other vehicles, the vehi-
cle's speed and for braking in good time.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
DISTRONIC PLUS supports you when you
move to the fast lane if:
R you are driving faster than 60 km/h.
R DISTRONIC PLUS is maintaining the dis-
tance to a vehicle in front.
R you switch on the appropriate turn signals.
R DISTRONIC PLUS does not detect a danger
of collision.
If these conditions are met, your vehicle is
accelerated. Acceleration will be interrupted
if changing lanes takes too long or if the dis- Driving systems
157Driving and parking Z

Setting
aspeed :
To store the current speed or a higher
speed
; To store the current speed or a lower
speed
X Press the cruise control lever up :for a
highe rspeed or down ;for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached.
X Release the cruise control lever.
The new speed is stored. DISTRONIC PLUS
is activated and adjusts the vehicle's speed
to the new speed stored.
X To adjust the set speed in 1 km/h incre-
ments: briefly press the cruise control
lever up :or down ;to the pressure
point.
The last stored speed increases or decrea-
ses in 1 km/h increments.
X To adjust the set speed in 10 km/h
increments: briefly press the cruise con-
trol lever up :or down ;beyond the
pressure point.
The last stored speed increases or decrea-
ses in 10 km/h increments.
i DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal. If you accel-
erate to overtake, DISTRONIC PLUS
adjusts the vehicle's speed to the last
speed stored after you have finished over-
taking. Setting the specified minimum distance You can set the specified minimum distance
for DISTRONIC PLUS by varying the time span
between one and two seconds. With this func-
tion, you can set the minimum distance that
DISTRONIC PLUS keeps to the vehicle in
front, dependen tonvehicle speed. You can
see this distance in the multifunction display
(Y page 157). X
To increase: turn control=in direc-
tion ;.
DISTRONIC PLUS then maintains a greater
distance between your vehicle and the
vehicle in front.
X To decrease: turn control=in direc-
tion :.
DISTRONIC PLUS then maintains a shorter
distance between your vehicle and the
vehicle in front.
i Make sure that you maintain the mini-
mum distance to the vehicle in front as
required by law. Adjust the distance to the
vehicle in front if necessary. Driving systems
159Driving and parking Z

Deactivating DISTRONIC PLUS
There are several ways to deactivate DIS-
TRONIC PLUS:
X
Briefly press the cruise control lever for-
wards :.
or
X Brake, unless the vehicle is stationary.
or
X Briefly press the cruise control lever in the
direction of arrow =.
Variable SPEEDTRONIC is selected. LIM
indicator lamp ;in the cruise contro llever
lights up.
When you deactivate DISTRONIC PLUS, you
will see the DISTRONIC PLUS off message
in the multifunction display for approximately
five seconds.
i The last speed stored remains stored until
you switch off the engine.
DISTRONIC PLUS is automatically deactiva-
ted if:
R you engage the electric parking brake or if
the vehicle is automatically secured with
the electric parking brake.
R you are driving slower than 10 km/h and
there is no longer a vehicle in front, or if the
vehicle in fron tis no longer detected.
R ESP ®
intervenes or if you deactivate ESP ®
.
R the transmission is in the P,Ror Nposition.
R you pull the cruise control lever towards
you in order to pull away, and the front- passenger door or one of the rear doors is
open.
R the vehicle has skidded.
If DISTRONIC PLUS is deactivated, you will
hear a warning tone. You will see the DIS‐ TRONIC PLUS off message in the multifunc-
tion display for approximately five seconds.
In the Assistance menu (Y page 198) of the
on-board computer, you can select the dis-
tance display. Distance display when DISTRONIC PLUS is deacti-
vated
:
Vehicle in front, if detected
; Distance indicator: current distance to
the vehicle in front
= Specified minimum distance to the vehi-
cle in front; adjustable
? Own vehicle
X Select the Distance display function
using the on-board computer
(Y page 198).
Tips for driving with DISTRONIC PLUS General notes
The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated.160
Driving systemsDriving and parking

i
If depressing the brake pedalt he first
time does not activate the HOLD function,
wait briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automati-
cally if:
R you accelerate and the transmission is in
position Dor R.
R you shift the transmission to position P.
R you depress the brake pedal again with a
certain amount of pressure until ëdis-
appears from the multifunction display.
R you secure the vehicle using the electric
parking brake.
R you activate DISTRONIC PLUS.
i After a time, the electric parking brake
secures the vehicle and relieves the service
brake.
The electric parking brake secures the vehicle
automatically if the HOLD function is activa-
ted and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
R a system fault occurs.
R the power supply is not sufficient.
If a fault occurs, then the transmission may
be shifted into position Pautomatically. PARKTRONIC
Important safety notes G
WARNING
PARKTRONIC is only an aid and may not
detect all obstacles. It is not a substitute for
attentive driving.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and manoeuvring. You could otherwise endanger
yourself and others.
G
WARNING
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
! When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does not detect such objects when
they are in the immediate vicinity of the
vehicle. You could damage the vehicle or
the objects.
The sensors may not detect snow and
objects which absorb ultrasonic sources.
Ultrasonic sources, such as an automatic
car wash, a lorry's compressed-air brakes
or a pneumatic drill, could cause PARK-
TRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically if
you:
R switch on the ignition
R shift to position D,Ror Non vehicles with
automatic transmission
R release the electric parking brake
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper. Driving systems
163Driving and parking Z