2015 MERCEDES-BENZ B-CLASS HATCHBACK lane assist

Display
High-voltage battery charge level
(instrument cluster) ...................... .174
Display message
Drive system .................................. 204
Driving systems ............................ .205
Display messages
ASSYST PLUS ................................ 241
Calling up (on-board computer) ..... 189
General information ....................... 189
Hiding (on-board computer) ........... 189
Key ................................................ 212
Lights ............................................. 201
Safety systems .............................. 190
Tyres .............................................. 209
Vehicle .......................................... .210
Displaying electrical consumption
(on-board computer) ......................... 178
Displaying energy consumption
(on-board computer) ......................... 178
Distance warning function
Function/notes ................................ 63
Warning lamp ................................. 222
Distance warning signal (warning
lamp) ................................................. .222
Door
Automatic locking (on-board com-
puter) ............................................. 187
Automatic locking (switch) .............. .79
Central locking/unlocking (key) ...... 72
Control panel .................................. .32
Display message ............................ 211
Emergency locking ........................... 80
Emergency unlocking ....................... 80
Important safety note s.................... 78
Opening (from the inside) ................ 78
Drive system
Jump-starting ................................. 258
Starting with the key ...................... 128
Starting with the Start/Stop but-
ton ................................................. 127
Switching off .................................. 145
Driver's door
see Door
Driving abroad
Mercedes-Benz Service ................. 242
Symmetrical dipped beam ............... 97
Driving on flooded roads .................. 150Driving safety system
COLLISION PREVENTION ASSIST
PLUS ................................................ 62
EBD (electronic brake force distri-bution) ............................................. 66
STEER CONTROL ............................. 67
Driving safety systems
ABS (Anti-lock Braking System) ....... 61
ADAPTIVE BRAK E............................. 67
Adaptive Brake Assist ...................... 64
Adaptive brake lights ....................... 65
BAS (Brake Assist System) .............. 62
Distance warning function ............... 63
ESP ®
(Electronic Stability Pro-
gram) ............................................... 65
Important safety guidelines ............. 61
Overview .......................................... 61
Driving systems
Active Parking Assist ..................... 158
ATTENTION ASSIST ........................ 165
Blind Spot Assist ............................ 169
Cruise control ................................ 150
Display message ............................ 205
HOLD function ............................... 154
Lane Keeping Assist ...................... 170
Lane package ................................ 168
PARKTRONIC ................................. 155
Reversing camera .......................... 162
SPEEDTRONIC ............................... 152
Traffic Sign Assist .......................... 166
Driving tips
Aquaplaning ................................... 150
Brakes ........................................... 148
Downhill gradient ........................... 149
Driving abroad ................................. 97
Driving in winter ............................. 150
Driving on flooded roads ................ 150
Driving on wet roads ...................... 150
Energ y........................................... 148
General .......................................... 147
Icy road surfaces ........................... 150
Limited braking efficiency on sal-
ted roads ....................................... 149
New brake pads/linings ................ 149
Running-in tip s............................... 125
Snow chains .................................. 269
Symmetrical dipped beam ............... 97
Wet road surface ........................... 149 Index
7

Indicator lamps
Display message ............................ 201
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 27
Power display ................................ 173
Settings ........................................ .186
Warning and indicator lamps ........... 28
Instrument cluster lighting .............. 172
Intelligent Light System
Activating/deactivating ................. 187
Display message ............................ 202
Overview ........................................ 100
Setting the dipped-beam head-
lamps for driving on the right/left .. 187
Interior lighting
Control .......................................... .103
Emergency lighting ........................ 103
Overview ........................................ 102
Reading lamp ................................. 102
Interior motion sensor
Deactivating ..................................... 69
Function .......................................... .69
Priming ............................................ 69
Switching off .................................... 69
ISOFIX child seat securing system ....50J
Jack Storage location ............................2 49
Using ............................................. 274 K
Key Changing the battery ....................... 75
Checking the battery ....................... 74
Convenience closing feature ............ 83
Convenience opening feature .......... 83
Display message ............................ 212
Door central locking/unlocking ....... 72
Emergency key element ................... 73
Important safety notes .................... 71
KEYLESS-GO start function .............. 73
Loss ................................................. 76
Modifying the programming ............. 73 Positions (ignition lock) ................. 126
Problem (malfunction) ..................... 76
Key positions
Start/Stop button .......................... 126
Key positions (ignition lock) ............ 126
KEYLESS-GO
Convenience closing ........................ 83
Deactivation ..................................... 72
Locking ............................................ 72
Unlocking ......................................... 72
Kickdown
Driving tips ................................... .131
Kneebag ............................................... 41 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 183
Display message ............................ 206
Function/informatio n.................... 170
Lane package ..................................... 168
Lashing eyelets ................................. 229
Licence plate lamp (display mes-
sage) ................................................... 202
Licence plate lighting
Changing bulb s.............................. 108
Light sensor (display message) ....... 203
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 187
Active light function ....................... 100
Adaptive Highbeam Assist ............. 101
Automatic headlamp mode .............. 98
Cornering light function ................. 100
Dipped-beam headlamp s................. 98
Driving abroad ................................. 97
Foglamps (extended range) ........... 101
Hazard warning lamps ................... 100
Headlamp flashe r........................... 100
Headlamp range .............................. 99
Light switch ..................................... 97
Main-beam headlamp s..................... 99
Misted up headlamp s.................... 102 10
Index

Override feature for the rear side win-
dows X
To enable/disable: press button:.
If indicator lamp ;is lit, operation of the rear
side windows is disabled. Operation is only
possible using the switches in the driver's
door. If indicator lamp ;is off, operation is
possible using the switches in the rear com-
partment. Pets in the vehicle
G
WARNING
If you leave animals unsupervised or unse-
cured in the vehicle, they may push a button
or a switch, for example.
They could:
R activate vehicle equipment and become
trapped, for example
R switch vehicle systems on or off, thus
endangering other road users
In the event of an accident, sudden braking or
abrupt changes of direction, unsecured ani-
mals could be flung around the vehicle, injur-
ing the vehicle occupants. There is a risk of an accident and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals correctly during a
journey, e.g. in an animal transport box. Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS (A nti-lock Braking System)
(Y page 61)
R BAS (Brake AssistSystem) (Y page 62)
R COLLISION PREVENTION ASSIST PLUS
(Y page 62)
R Adaptive brake lights (Y page 65)
R ESP ®
(Electronic StabilityProgram)
(Y page 65)
R EBD (e lectronic brake force distribution)
(Y page 66)
R ADAPTIVE BRAKE (Y page 67)
R STEER CONTROL (Y page 67) Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override
the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt your driving style to suit the prevailing road and weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
The driving safety systems described only work as effectively as possible when there is ade-
quate contact between the tyres and the road
surface. Please pay special attention to the
notes on tyres, recommended minimum tyre
tread depths etc. (Y page 266).
In wintry driving conditions, always use winter
tyres (M+S tyres) and, if necessary, snow
chains. Only in this way will the driving safety
systems described in this section work as effec-
tively as possible. ABS (Anti-lock Braking System)
General notes ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This Driving safety systems
61Safety 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

:
Red guide line at a distance of approximately
0.30 m from the rear of the vehicle
; White guide line without turning the steering
wheel
= End of parking space
X Reverse carefully until you have reached the
end position.
Red guide line :is then at the end of parking
space =. The vehicle is almost parallel in the
parking space.
Wide-angle function :
Symbol for the wide-angle view function
; Own vehicle
= PARKTRONIC warning displays
Select this view when you are driving out of an
exit and the view of crossing traffic is restricted, for example. ATTENTION ASSIST
General notes ATTENTION ASSIST helps you during long,
monotonous journeys such as on motorways
and trunk roads. It is active in the 60 km/h to
200 km/h speed range. If ATTENTION ASSIST detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break.
Important safety notes ATTENTION ASSIST is only an aid. It may not
always detect fatigue or lapses in concentration
until too late, or may not detect them at all. The system is not a substitute for a well-rested and
attentive driver.
The functionality of ATTENTION ASSIST is
restricted, and warnings may be delayed or not
occur at all:
R if the length of the journey is less than approx-
imately 30 minutes
R if the road condition is poor, e.g. if the surface
is uneven or if there are potholes
R if there is a strong side wind
R if you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration
R if you are predominantly driving at a speed
below 60 km/h or above 200 km/h
R if the time has been set incorrectly
R in active driving situations, such as when you
change lanes or change your speed
ATTENTION ASSIST is reset and starts assessing
your tiredness again when you continue your
journey if:
R you switch off the engine
R you take off your seat belt and open the driv-
er's door, e.g. for a change of drivers or to
take a break
Displaying the attention level You can have current status information dis-
played in the assistance menu (Y
page 182) of
the on-board computer. Driving systems
165Driving and parking Z

applicable traffic regulation continues to be
shown in the assistance graphic display
(Y page 182).
The camera also detects traffic signs with a
restriction indicated by an additional sign (e.g. in wet conditions).
The traffic signs are only displayed with the
restrictions if:
R the regulation must be observed with the
restriction, or
R Traffic Sign Assist is unable to determine
whether the restriction applies
If Traffic Sign Assist is unable to determine a
maximum permitted speed from any of the avail- able sources, no speed limit is displayed in the
instrument cluster either. Traffic Sign Assist is not available in all coun-
tries. In this case, display
:is shown in the
multifunction display.
Important safety notes Traffic Sign Assist is only an aid and is not always
able to correctly display speed limits and over-
taking restrictions. Traffic signs always have pri-
ority over the Traffic Sign Assist display.
The system may be either functionally impaired
or temporarily unavailable if:
R visibility is poor, e.g. due to snow, rain, fog or
spray
R there is glare, e.g. from the sun being low in
the sky
R there is dirt, ice or misting on the windscreen
in the vicinity of the camera
R traffic signs are hard to detect (dirt, ice, snow)
R the traffic signs are insufficiently lit at night R
signs are ambiguous (e.g. traffic signs on con-
struction sites or in adjacent lanes)
R the information in the digital street map of the
navigation system is incorrect or out of date
Activating Traffic Sign Assist X
Activate the Traffic Sign Assist display using
the on-board computer (Y page 182).
If you have activated the Traffic Sign Assist dis- play in the on-board computer, the traffic regu-
lations (speed limits and overtaking restrictions)
are displayed in the instrument cluster for five
seconds respectively. The wrong-way warning
and the traffic sign display for speed limits and
overtaking restrictions remain active in the
Assist graphic even when the display has been
deactivated.
Instrument cluster display i
The following illustrations are examples of
vehicles with colour multifunction display.
The illustrations of vehicles with black and
white multifunction display differ from them.
i The unit for the speed limit (km/h or mph)
depends on the country in which you are driv-
ing. It is generally neither shown on the traffic
sign nor on the instrument cluster but must be
taken into account when observing the max-
imum permitted speed. Speed limit with overtaking restriction
A maximum permitted speed of 60 km/h
(60 mph)
:and an overtaking restriction ;
apply. Driving systems
167Driving and parking Z

:
Maximum permitted speed
; Maximum permitted speed for vehicles for
which the restriction in the additional sign is
relevant
= Additional sign for unknown restriction
Speed limit with unknown restriction
A maximum permitted speed of 80 km/h
(80 mph) and a speed limit of 60 km/h (60 mph) with an unknown restriction apply. :
Maximum permitted speed
; Additional signs for wet conditions
Speed limits in wet conditions
A maximum permitted speed of 80 km/h
(80 mph) applies in wet conditions and when
Traffic Sign Assist has determined that the
restriction must be observed. End of an overtaking restriction
A maximum permitted speed of 60 km/h
(60 mph)
:applies. The overtaking restriction
no longer applies ;. The traffic sign for signal-
ling the end of an overtaking restriction is dis-
played for five seconds. End of a speed limit
No speed limit :applies here. No entry (wrong-way warning)
A warning message
:is displayed in the instru-
ment cluster if Traffic Sign Assist detects that
you are passing a “no entry” sign and you are
driving in the wrong direction. You will then also hear a warning tone. You should immediately
check your direction of travel in order to avoid
danger to yourself and other road users. Lane Tracking package
General notes The Lane Tracking package consists of Blind
Spot Assist (Y
page 169) and Lane Keeping
Assist (Y page 170). 168
Driving systemsDriving and parking

Blind Spot Assist
General notes
Blind Spot Assist monitors the areas on either
side of the vehicle that are not visible to the
driver with two lateral, rear-facing radar sen-
sors. A warning display in the exterior mirrors
draws your attention to vehicles detected in the
monitored area. If you then switch on the cor-
responding turn signal to change lanes, you will also receive a visual and audible collision warn-
ing.
Blind Spot Assist supports you from a speed of
approximately 30 km/h.
Important safety notes G
WARNING
Blind Spot Assist does not react to vehicles:
R overtaken too closely on the side, placing
them in the blind spot area
R when the difference in the speed of
approach and overtaking is too great
As a result, Blind Spot Assist cannot warn
drivers in these situations. There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and maintain a safe distance at the side
of the vehicle.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving. Always ensure that there is
sufficient distance to the side for other road
users and obstacles. Radar sensors
The radar sensors for Blind Spot Assist are inte-
grated into the rear bumper. Make sure that the bumpers are free from dirt, ice or slush. The
sensors must not be covered, for example by
cycle racks or overhanging loads. Following a
severe impact or in the event of damage to the
bumpers, have the function of the radar sensors
checked at a qualified specialist workshop.
Blind Spot Assist may no longer work properly. Monitoring range of the sensors
In particular, the detection of obstacles can be
impaired in the case of:
R dirt on the sensors or obscured sensors
R poor visibility, e.g. due to fog, heavy rain or
snow
R a narrow vehicle travelling in front, e.g. a
motorcycle or a bicycle
R very wide lanes
R narrow lanes
R vehicles not driving in the middle of their lane
R barriers or other road boundaries
Vehicles in the monitoring range are then not
indicated. Blind Spot Assist monitors the area up to 3.0 m
behind your vehicle and directly next to your
vehicle, as shown in the picture.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may be
indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if the vehicles are driving on the inner side of their lane.
Due to the nature of the system:
R warnings may be issued in error when driving
close to crash barriers or similar solid lane
borders
R warnings may be interrupted when driving
alongside particularly long vehicles, for exam-
ple lorries, for a prolonged time Driving systems
169Driving and parking Z