2015 MERCEDES-BENZ B-CLASS HATCHBACK ignition

Warning displays
:
Segments on the left-hand side of the vehi-
cle
; Segments on the right-hand side of the vehi-
cle
= Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located on
the dashboard above the centre air vents. The
warning display for the rear area is located on
the roof lining in the rear compartment.
The warning display for each side of the vehicle
is divided into five yellow and two red segments.
PARKTRONIC is operational if yellow segments
showing operational readiness =light up.
The transmission position of the automatic
transmission and the direction in which the vehi-
cle is rolling determine which warning display is active when the engine is running. Transmission posi-
tion Warning display
D
Front area activated
R,
Nor the vehicle is
rolling backwards Rear and front areas
activated
P
No areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the vehi-
cle's distance from the obstacle.
From the:
R sixth segment onwards, you will hear an inter-
mittent warning tone for approximately two
seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two seconds. This indicates that you have now reached the
minimum distance.
Deactivating/activating PARKTRONIC :
Indicator lamp
; To deactivate/activate PARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated.
i PARKTRONIC is automatically activated
when you turn the key to position 2in the
ignition lock. Driving systems
157Driving and parking Z

Problems with PARKTRONIC
Problem
Possible causes/consequences and
M
MSolutions Only the red segments in
the PARKTRONIC warn-
ing displays are lit. You
also hear a warning tone
for approximately two
seconds.
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has been deactivated.
X If problems persist, have PARKTRONIC checked at a qualified spe-
cialist workshop. Only the red segments in
the PARKTRONIC warn-
ing displays are lit.
PARKTRONIC is then
deactivated. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 245).
X Switch the ignition back on. The problem may be caused by an external source of radio or ultra-
sound waves.
X See if PARKTRONIC functions in a different location. Active Parking Assist
General notes Active Parking Assist is an electronic parking aid
with ultrasound. It measures the road on both
sides of the vehicle. A parking symbol indicates a suitable parking space. Active steering inter-
vention can assist you during manoeuvring and
parking. You may also use PARKTRONIC
(Y page 155).
Important safety notes Active Parking Assist is only an aid. It is not a
substitute for your attention to the immediate
surroundings. The responsibility for safe
manoeuvring and parking remains with you.
Make sure that no persons, animals or objects
are in the manoeuvring range.
When PARKTRONIC is deactivated, Active Park-
ing Assist is also unavailable. G
WARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could cause you to collide with other road users.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
! If unavoidable, you should drive over obsta-
cles such as kerbs slowly and not at a sharp
angle. Otherwise, you may damage the
wheels or tyres.
Active Parking Assist may also display spaces
not suitable for parking, e.g.: R parking or stopping prohibitions
R in front of driveways or entrances and exits
R unsuitable surfaces
Parking tips:
R on narrow roads, drive as closely as possible
past the parking space
R parking spaces that are littered or overgrown
might be identified or measured incorrectly
R parking spaces that are partially occupied by
trailer drawbars might not be identified as
such or be measured incorrectly
R snowfall or heavy rain may lead to a parking
space being measured inaccurately 158
Driving systemsDriving and parking

Reversing camera
General notes Reversing camera
:is an optical parking and
manoeuvring aid. It uses guide lines to show the
area behind your vehicle in the Audio/COMAND
display.
The area behind the vehicle is displayed as a
mirror image, as in the rear-view mirror.
i The text shown in the Audio/COMAND dis-
play depends on the language setting. The
following are examples of reversing camera
displays in the Audio/COMAND display.
See the notes on cleaning (Y page 246).
Important safety notes The reversing camera is only an aid. It is not a
substitute for your attention to the immediate
surroundings. The responsibility for safe
manoeuvring and parking remains with you.
Make sure that there are no persons, animals or
objects in range while manoeuvring and parking.
Under the following circumstances, the revers-
ing camera will not function, or will function in a limited manner:
R if the tailgate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light
R if the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in win-
ter R
if the camera lens is dirty or obstructed.
Observe the notes on cleaning
(Y page 246)
R if the rear of your vehicle is damaged. In this
case, have the camera position and setting
checked at a qualified specialist workshop.
The field of vision and other functions of the
reversing camera may be restricted due to addi-
tional accessories on the rear of the vehicle (e.g. licence plate holder, bicycle rack).
Activating/deactivating the reversing
camera X
To activate: make sure that the key is in
position 2in the ignition lock.
X Make sure that the Activation by R gear Activation by R gear
function is selected in Audio 20/COMAND
Online; see the Digital Owner's Manual.
X Engage reverse gear.
The area behind the vehicle is shown with
guide lines in the Audio 20/COMAND Online
display.
The image from the reversing camera is avail-
able throughout the manoeuvring process.
To deactivate: the reversing camera deacti-
vates if you shift the transmission to Por after
driving forwards a short distance.
Displays in the Audio 20/COMAND dis-
play The reversing camera may show a distorted view
of obstacles or show them incorrectly or not at
all. Obstacles are not shown by the reversing
camera in the following locations:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bottom- most guideline. 162
Driving systemsDriving and parking

Warning display
:
Warning display
Blind Spot Assist is not active at speeds below
approximately 30 km/h. Vehicles in the moni-
toring range are then not indicated.
If Blind Spot Assist is activated, indicator
lamp :in the exterior mirrors lights up yellow
up to a speed of 30 km/h. At speeds above
30 km/h, the indicator lamp goes out and Blind
Spot Assist is operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
30 km/h, warning lamp :on the correspond-
ing side lights up red. This warning always
occurs when a vehicle enters the blind spot
monitoring range from behind or from the side.
When you overtake a vehicle, the warning only
occurs if the difference in speed is less than
12 km/h.
The yellow indicator lamp goes out if reverse
gear is engaged. Blind Spot Assist is then deac- tivated.
The brightness of the indicator/warning lamps
is adjusted automatically according to the ambi-
ent light.
Collision warning
If a vehicle is detected in the monitoring range of
Blind Spot Assist and you switch on the corre-
sponding turn signal, a double warning tone
sounds. Red warning lamp :flashes. If the turn
signal remains on, detected vehicles are indica-
ted by the flashing of red warning lamp :.
There are no further warning tones. Activating Blind Spot Assist
X Make sure that Blind Spot Assist is activated
in the on-board computer (Y page 183).
X Turn the key to position 2in the ignition lock.
Warning lamps :in the exterior mirrors light
up red for approximately 1.5 seconds and
then turn yellow.
Lane Keeping Assist General notes
Lane Keeping Assist monitors the area in front of
your vehicle by means of multifunction cam-
era :attached at the top of the windscreen.
Lane Keeping Assist detects lane markings on
the road and can warn you before you leave your lane unintentionally.
This function is available in a speed range
between 60 km/h and 200 km/h.
A warning may be given if a front wheel passes
over a lane marking. It will warn you by means of intermittent vibration through the steering
wheel for up to 1.5 seconds.
Important safety notes G
WARNING
Lane Keeping Assist cannot always clearly
identify lane markings.
In these cases, Lane Keeping Assist may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep in lane, especially if Lane
Keeping Assist alerts you. 170
Driving systemsDriving and parking

If necessary, counteract the reduced regenera-
tive braking effect by applying the brake your-
self. Charge level display
Charge status display
:shows the charge sta-
tus of the high-voltage battery.
The charge value is shown as a percentage in the
energy flow
energy flow menu in the instrument cluster
(Y page 177).
i The
energy flow
energy flow menu can also be dis-
played n the COMAND/Audio display.
The charge level of the high-voltage battery has dropped into the reserve range if the drive sys-
tem is running and:
R the Drive battery Reserve level Drive battery Reserve level mes-
sage appears in the display
R the indicator lamp in the instrument cluster
lights up
Charge the high-voltage battery from a state of
charge of less than 20% at a:
R mains socket
R charging station
The braking performance of the electric motor
using recuperative braking is, in some operating
modes, either reduced or not effective:
R when the charge status of the high-voltage
battery increases
R if the high-voltage battery is not yet at a nor-
mal operating temperature
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. Operating the on-board computer
Overview :
Multifunction display
; Right control panel
= Left control panel
X To activate the on-board computer: turn
the key to position 1in the ignition lock.
You can control the multifunction display and
the settings in the on-board computer using the buttons on the multifunction steering wheel.
Left control panel =
; R
Calls up the menu and menu bar 9
: Press briefly:
R Scrolls through lists
R Selects a submenu or function
R In the Audio Audio menu: selects the
previous or next station, when the preset list or station list is active,
or an audio track or video scene
R In the Tel Tel(Telephone) menu:
switches to the phone book and
selects a name or telephone num-
ber 174
Displays and operationOn-board computer and displays

R
_ Adaptive Highbeam Assist
(Y page 101)
R ë HOLD function (Y page 154)
R 120 km/h!
120 km/h! Maximum permissible speed
exceeded (only for certain countries) Menus and submenus
Menu overview
Using the =or; button on the steering
wheel, open the menu bar.
Operating the on-board computer (Y page 174).
Depending on the equipment fitted in the vehi-
cle, you can call up the following menus:
R Trip
Trip menu (Y page 176)
R Navi Navi menu (navigation instructions)
(Y page 178)
R Audio
Audio menu (Y page 180)
R Tel
Tel menu (telephone) (Y page 181)
R Assist.
Assist. menu (assistance) (Y page 182)
R Serv.
Serv. menu (Y page 184)
R Settings
Settings menu (settings) (Y page 184)
The displays for the Audio
Audio, Navi
NaviandTel
Tel menus
may differ slightly to those in your vehicle.
The examples given in this Owner's Manual
apply to vehicles equipped with COMAND
Online. Trip menu
Standard display X
Press and hold the %button on the steer-
ing wheel until the Trip Tripmenu with trip
meter :and total distance recorder ;
appears. Trip computer "From start" or "From
reset" :
Distance
; Driving time
= Average speed
? Average electrical consumption
X Press the =or; button on the steering
wheel to select the Trip
Tripmenu.
X Press the 9or: button to select
From start
From start orFrom reset
From reset.
The values in the From
Fromstart
start submenu are cal-
culated from the start of a journey whilst the
values in the From reset From resetsubmenu are calcu-
lated from the last time the submenu was reset
(Y page 178).
In the following cases, the trip computer is auto-
matically reset From start From start:
R the ignition has been switched off for more
than four hours
R 999 hours have been exceeded.
R 9,999 kilometres have been exceeded.
When 9,999 hours or 99,999 kilometres have
been exceeded, the trip computer is automati-
cally reset From reset From reset.
ECO display X
Press the =or; button on the steering
wheel to select the Trip
Tripmenu.
X Press the 9or: button to select ECO
ECO
DISPLAY
DISPLAY.
If the ignition remains switched off for longer
than four hours, the ECO display will be auto-
matically reset. 176
Menus and submenusOn-board computer and displays

Display messages
Introduction
General notes Display messages appear in the multifunction display.
Display messages with graphic symbols are simplified in the Owner's Manual and may differ from
the symbols in the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in this
Owner's Manual.
Certain display messages are accompanied by an audible warning tone or a continuous tone.
When the ignition is switched off, all display messages are deleted apart from some high-priority
display messages. Once the causes of the high-priority display messages have been rectified, these
display messages are deleted as well.
When you stop and park the vehicle, please observe the notes on:
R HOLD function (Y page 154)
R Parking (Y page 145)
Hiding display messages X
Press the aor% button on the steering wheel.
The multifunction display hides the display message.
The multifunction display shows high-priority display messages in red. Some high-priority display
messages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the messages
have been remedied.
Message memory The on-board computer saves certain display messages in the
message memory. You can call up
the display messages:
X Press the =or; button on the steering wheel to select the Service
Service menu.
If there are display messages, the multifunction display shows 2 messages
2 messages, for example.
X Press the 9or: button to select the entry, e.g. 2 messages
2 messages.
X Press ato confirm.
X Press the 9or: button to scroll through the display messages. Display
messages
189On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions !
Turn on the igni‐ Turn on the igni‐
tion tion
to
torelease
release the
the
parking brake
parking brake The red
!indicator lamp lights up.
You attempted to release the electric parking brake while the ignition
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 146).
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 146). !
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 lever for at least ten seconds.
X Shift the transmission to position 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 Release the electric parking brake automatically (Y page 146).
If the electric parking brake still cannot be released: X Do not drive on.
X Consult a qualified specialist workshop. Display
messages
193On-board computer and displays Z