2014 MERCEDES-BENZ B-CLASS SPORTS warning light

With this function you can adjust the distance
between the head restraint and the back of
the seat occupant's head.
X
To adjust forwards: pull the head restraint
forwards in the direction of the arrow until
it engages.
There are several notches.
X To move backwards: press and hold
release button 001Aand push the head
restraint backwards.
X When the head restraint is in the desired
position ,release the button and make sure
that the head restraint is engaged in
position.
Adjusting the height of the head
restraints electrically X
To adjust the head restraint height: slide
the switch for head restraint adjustment
(Y page 95) up or down in the direction of
the arrow.
Rear seat head restraints Adjusting the rear seat head restraint
height
X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch 001Aand push
the head restraint down until it is in the
desired position. Removing and installing the rear seat
head restraints G
WARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Befor edriving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level.
The rear head restraints on the outer seats
can be removed and re-installed. X
Fold the seat backres tslightly forwards in
order to remove the head restraint
(Y page 254).
X To remove: pull the head restraint up to
the stop.
X Press release catch 001Aand pull the head
restraint out of the guides.
X To re-install: insert the head restraint so
that the notches on the bar are on the left
when viewed in the direction of travel.
X Push the head restraint down until you hear
it engage in position. Adjusting th
e4-way lumbar support
You can adjust the contour of the front seat
backrest sindividually to provide optimum
support for your back. 96
SeatsSeats, steering wheel and mirrors

Problems with the seat heating
Problem Possible causes/consequences and
000B Solutions
The seat heating has
switched off
prematurely or cannot
be switched on. The on-board voltage is too low because too many electrical
consumers are switched on.
X
Switch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will
switch back on automatically. Steering wheel
Important safety notes
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before startingt he engine.G
WARNING
Children could injure themselves if they
adjust the steering wheel. There is arisk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. Adjusting the steering wheel
G
WARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is arisk of an
accident. Before startingo
ff, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. 001A
Release lever
0010 To adjust the steering wheel height
0023 To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever 001Adown completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever 001Aup completely.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. 98
Steering wheelSeats, steering wheela
nd mirrors

Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever 001A
forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you coul dmisjudge the
distance from road users traveling behind,
e.g. when changing lane .There is arisk of an
accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 137).
X Press button 001Afor the left-hand exterior
mirror or button 0010for the right-hand
exterior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button 0023as long
as the indicator lamp is lit.
X Press adjustment button 0023up, down, or
to the left or right until you have adjusted
the exterior mirror to the correct position.
You should have agood overview of traffic
conditions.
The convex exterior mirrors provide alarger
field of vision.
The exterior mirrors are automatically heated
after startingt he vehicle if the rear window
defroster is switched on and the outside
temperature is low. Heating takes amaximum
of 10 minutes.
i You can also heat up the exterior mirrors
manually by switching on the rear window
defroster.
Folding the exterior mirrors in or out
electrically X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 137).
X Briefly press button 001A.
Both exterior mirrors fold in or out. Mirrors
99Seats, steering wheela nd mirrors Z

Automatic headlamp mode
G
WARNING
When th eligh tswitc hiss et to 000C,t helow-
beam headlamp smay not be switche don
automatically if there is fog, snow or other
causes of poor visibility due to th eweather
conditions such as spray. Ther eisarisk of an
accident.
In such situations, tur nthe light switch to
0005.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
000C is the favored light switch setting. The
light settingisa utomatically selected
according to the brightness of the ambient
light (exception: poor visibility due to weather
conditionss uch as fog, snow or spray):
R SmartKey in position 1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
R With the engine running: if you have
activated the daytime running lamps
function via the on-board computer, the
daytime running lamps or the low-beam
headlamps and parking lamps are switched
on or off automatically depending on the
brightness of the ambient light.
X To switch on automatic headlamp
mode: turn the light switch to 000C.
The daytime running lamps improve the
visibility of your vehicle during the day. The
daytime running lamps function is required by
law in Canada.
When the engine is running and the vehicle is
stationary: if you move the selector lever from
ad rive position to P,the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in bright ambient light: if you
turn the light switch to 000F,the daytime
running lamps and parking lamps switch on. If the engine is running and you turn the light
switch to
0005,the manual settings take
precedence over the daytime running lamps.
Low-beam headlamps
Even if the light sensor does not detect that
it is dark, the parking lamps and low-beam
headlamps switch on when the ignition is
switched on and the light switch is set to the
0005 position. This is aparticularly useful
function in the event of rain and fog.
X To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position 2or start the engine.
X Turn the light switch to 0005.
The green 0005indicator lamp in the
instrumentc luster lightsup.
Front fog lamps
In conditions where visibilit yispoor due to
fog, sno worrain, the fog lamps improve
visibilit yaswell as making it easier for other
road users to see you. They can be operated
together with the parking lamps or together
with the parking lamps and low-beam
headlamps.
X To switch on th efront fog lamps: turn
the SmartKey in the ignition lock to position
2 or start the engine.
X Turn the light switc hto0005or000C.
X Press the 0019button.
The green 0019indicator lamp in the
instrumen tcluster light sup.
X To switch off th efront fog lamps: press
the 0019 button.
The green 0019indicator lamp in the
instrumen tcluster goes out.
Only vehicles with front fog lamps are
equipped with the "fog lamp" function;
information on the fog lamp function for
vehicles with Intelligent Light System
(Y page 108). Exterior lighting
105Lightsand windshield wipers Z

The blue
0011indicator lamp in the
instrument cluster lights up when the high-
beam headlamps are switched on.
X To switch off the high-beam
headlamps: move the combination switch
back to its normal position.
The blue 0011indicator lamp in the
instrument cluster goes out.
i Vehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active,
it controls activation of the high-beam
headlamps (Y page 108).
High-beam flasher X
To switch on: turn the SmartKey in the
ignition lock to position 1or 2or start the
engine.
X Pull the combination switch in the direction
of arrow 0023. Hazard warning lamps
The hazard warning lamps automatically
switch on if:
R
an air bag is deployed
R the vehicle decelerates rapidly from a
speed of more than 45mph (70k m/h) and
comes to astandstill
X To switch on the hazard warning lamps:
press button 001A.
All turn signals flash. If you now switch on
at urn signa lusing the combination switch, only the turn signa
llam pont he
corresponding sid eofthe vehicle will flash.
X To switch off the hazard warning
lamps: press button 001A.
The hazard warning lamps switch off
automatically if the vehicle reaches aspeed
of over 6mph (10km/h) again after afull
brake application.
i The hazard warning lamps still operate if
the ignition is switched off. Cornerin
glight function The cornering light function improves the
illumination of the road over
awidea nglein
the direction you are turning, enabling better
visibility in tight bends ,for example. The
cornering light function can only be activated
whe nthe low-beam headlamps are switched
on.
Active:
R if you are driving at speeds below 25 mph
(40 km/h )and switch on the turn signal or
turn the steering wheel.
R if you are driving at speeds between
25 mph (40k m/h )and 45 mph (70k m/h)
and turn the steering wheel.
Not active: if you are driving at speeds above
25 mph (40 km/h) or switch off the turn
signa lorturn the steering wheel to the
straight-ahead position.
The cornering lamp may remain lit for ashort
time, but is automatically switched off after
no more than three minutes. Exterior lighting
107Lights and windshield wipers Z

Extende
drange fog lamps The extended range fog lamps reduc
ethe
glare experienced by th edriver and improve
th ei lluminatio nofthe edge of the road.
Active: if you are driving at speeds below
40 mph (70 km/h) and you switch on the rear
fog lamp.
Not active: if, following activation, you are
driving at speeds above 60 mph (100 km/h)
or if you switch off the rear fog lamp. Adaptive Highbeam Assist
Important safety notes G
WARNING
Adaptive Highbeam Assist does not recognize
road users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by abarrier
In very rare cases, Adaptive Highbeam Assist
may fail to recognize other road users that
have lights, or may recognizet hem too late.
In this or similar situations, the automatic
high-beam headlamps will not be deactivated
or activated regardless. There is arisk of an
accident.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions. Adaptive Highbeam Assist is only an aid. You
are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
R
poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or the sensors are
obscured
General notes You can use this function to set the
headlamps to change between low beam and
high beam automatically
.The system
recognizes vehicles with their lights on, either
approaching from the opposite direction or
traveling in front of your vehicle, and
consequently switches the headlamps from
high beam to low beam.
The system automatically adapts the low-
beam headlamp range depending on the
distance to the other vehicle. Once the
system no longer detectsa ny other vehicles,
it reactivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel. 108
Exterior lightingLights and windshield wipers

0023
0010 To switch the on/off
0021 0017 To switch the fronti nterior lighting/
automatic interio rlighting control off
001E 001D To switc hthe right-han dfront
reading lamp on/off
0024 To switch the automatic interior lighting
control on Rear-compartment overhea
dcontrol panel
001A To switch the reading lamp on/off Interior lighting control
Important notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
unless the SmartKey is in position 2in the
ignitio nlock.
The brightness of the ambient lighting may be
set using the on-board computer
(Y page 204).
Automatic interior lighting control X
To switch on: set the switch to center
position 0024.
X To switch off: set the switch to the 0017
position. The interior lighting automatically switches
on if you:
R unlock the vehicle
R open adoor
R remove the SmartKey from the ignition
lock.
The interior light is activated for ashort while
when the SmartKey is removed from the
ignition lock. You can activate this delayed
switch-off using the on-board computer
(Y page 204).
Manuali nterior lighting control X
To switch the front interior lighting on:
set the switch to the 0001position.
X To switch the interior lighting off: set the
switch to the 0017position or (if the door
is closed) to the center position.
X To switch the interior lighting on/off:
press the 001Abutton.
X To switch the reading lampso n/off:
press the 001Dbutton. Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
X Lock and then unlock the vehicle using the
key. Replacing bulbs
Important safety notes
Xenon bulbs G
DANGER
Xenon bulbs carry ahigh voltage. You can get
an electric shock if you remove the cover of 110
Replacing bulbsLights and windshield wipers

the Xenon bulb and touch the electrical
contacts. There is ariskoff atal injury.
Never touch the parts or the electrical
contacts of the Xenon bulb .Always have work
on the Xenon bulbs carried out at aqualified
specialist workshop.
If your vehicle is equipped with Xenon bulbs,
you can recognize this by the following: the
con eofl ight fro mthe Xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before startingt he engine.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp settingc hecked regularly.
Other bulbs G
WARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change abulb, you
could burn yourself on these components.
There is arisk of injury.
Allow these components to cool down before
changing abulb.
Do not use abulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratchit
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
bulbs of the same type and the specified
voltage.
Marks on the glass tube reduce the service
life of the bulbs. Do not touch the glass tube
with your bare hands. If necessary, clean the
glass tube when cold with alcohol or spirit and
rub it off with alint-free cloth. Protect bulbs from moisture during
operation. Do not allow bulbs to come into
contact with liquids.
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y
page 111). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
If you require assistance changing bulbs,
consult aqualified specialist workshop.
If the new bulb still does not light up, consult
aq ualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp settingc hecked regularly. Overview: changing bulbs/bulb types
You can change the following bulbs. The bulb
type can be found in the legend. Vehicles with halogen headlamps
001A
Turn signal lamp:3457
0010 High-beam headlamp: H7 55 W
0023 Parking lamp/standing lamp: W5WLL
0021 Low-beam headlamp: H7 55 W Replacing bulbs
111Lights and windshield wipers Z