2015 MERCEDES-BENZ B-CLASS HATCHBACK bulb

In situations like this, the body, the under-
body, chassis parts, wheels or tyres could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no longer withstand the strain they are designed
for.
In such situations, have the vehicle checked
and repaired immediately at a qualified spe-
cialist workshop. If, upon continuing your
journey, you notice that driving safety is
impaired, pull over and stop the vehicle imme- diately, paying attention to road and traffic
conditions. In such cases, consult a qualified
specialist workshop.
If you make changes to electronic components,
their software or wiring, the general operating
permit for your vehicle may be rendered invalid.
Danger of electric shock G
DANGER
The vehicle's high voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Do not touch any high-voltage components
after an accident and never modify the vehi-
cle's high-voltage electrical system. Have the vehicle towed away after an accident and the vehicle's high-voltage electrical system
checked by a qualified specialist workshop. All of the vehicle's high-voltage electrical sys-
tem components are marked with yellow warn- ing stickers which warn you about high voltages.
The cables of the vehicle's high-voltage electri-
cal system are orange.
When towing a vehicle after an accident, be sure to observe the following sections:
R Transporting the vehicle (Y page 263)
R Towing the vehicle with the front axle raised
(Y page 262)
R Towing the vehicle with both axles on the
ground (Y page 262)
Read the important safety instructions on tow-
ing away (Y page 260).
The ignition must be switched off when carrying out general tasks, such as changing bulbs or
checking the coolant level.
Automatic switching off of the vehicle's high-voltage electrical system If the restraint systems are activated during an
accident, the vehicle's high-voltage electrical
system is automatically deactivated.
This is to ensure that you do not come into con-
tact with high voltage.
Automatic protection from switching
on of the vehicle's high-voltage electri-
cal system The vehicle's high-voltage electrical system is
not activated when the vehicle is started if:
R a serious electrical insulation fault is detected
in the vehicle's high-voltage electrical system
R an electrical connection in the vehicle's high-
voltage electrical system is disconnected
Automatic switching off of the charging
process The charging process is deactivated automati-
cally if:
R the high-voltage battery is fully charged.
The charging process is interrupted automati-
cally if:
R a serious electrical insulation fault is detected
in the vehicle's high-voltage electrical system
R an electrical connection in the vehicle's high-
voltage electrical system is disconnected Introduction
21 Z

A
p Switches the right-hand front reading
lamp on/off
B Switches the automatic interior lighting con-
trol on
Control panel in the grab handle in the
rear compartment :
Switches the reading lamp on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except when the key is in position 2in the igni-
tion lock.
The colour and brightness for the ambient light- ing may be set using COMAND Online or Audio
20 (see the separate operating instructions).
Automatic interior lighting control X
To switch on: set the switch to centre posi-
tion B.
X To switch off: set the switch to the |
position.
The interior lighting automatically switches on if you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior lighting is activated for a short time
when the key is removed from the ignition lock.
This delayed switch-off can be adjusted using
COMAND Online or Audio 20 (see the separate
operating instructions). Manual interior lighting control X
To switch the front interior lighting on: set
the switch to the cposition.
X To switch off the interior lighting: set the
switch to the |position or (if the door is
closed) to the centre position.
X To switch the rear interior lighting on or
off:
press the ubutton.
X To switch the reading lamp on or off: press
the p button. 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 emer-
gency 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 are under high voltage. You can
get an electric shock if you remove the cover
of the xenon bulb and touch the electrical
contacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the xenon bulb. Always have work on the xenon bulbs carried out at a qualified spe- cialist workshop.
If your vehicle is equipped with xenon bulbs, you can recognise this by the following: the cone of
light from the xenon bulbs moves from the top to the bottom and back again when you start the
drive system. For this to be observed, the lights
must be switched on before the drive system is started.
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 setting checked regularly. Replacing bulbs
103Lights and windscreen wipers Z

Other bulbs
G
WARNING
Bulbs, lamps and plug connectors can
become very hot during use. When replacing a bulb, you could burn yourself on these com-
ponents. There is a risk of injury.
Allow these components to cool down before replacing the bulb.
Do not use a bulb 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 scratch it
Only operate bulbs in enclosed lamps designed
for that purpose. Only fit 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 a lint-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 yourself. Only replace the
bulbs listed (Y page 104). Have the bulbs that
you cannot replace yourself replaced at a quali-
fied specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb still does not light up, consult a
qualified 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 setting checked regularly. Overview of bulb replacement – bulbs
You can replace the following bulbs. The details for the bulb type can be found in the legend. Vehicles with halogen headlamps
:
Turn signal lamp: PY 21 W
; Main-beam headlamp: H7 55 W
= Side lamp/parking lamp: W 5 W LL
? Dipped-beam headlamp: H7 55 W Vehicles with Intelligent Light System
:
Cornering lamp: H7 55 W Tail lamps (vehicles with halogen headlamps)
: Rear foglamp: P 21 W
; Reversing lamp: W 16 W
= Turn signal lamp: PY 21 W 104
Replacing bulbsLights and windscreen wipers

Licence plate lamp (vehicles with halogen head-
lamps)
: Licence plate lamp: C 5 W Replacing the front bulbs
Fitting/removing the cover on the front wheel arch You must remove the cover of the front wheel
housing before you can change the front turn
signal lamp.
X To remove: switch off the lights.
X Turn the front wheels inwards.
X Slide cover :upwards.
Cover :is released.
X Unclip cover :.
X To fit: push cover ;up.
X To fit: clip in cover :.
X Push cover :down.
Cover :is locked. Dipped-beam headlamps (halogen
lamps) X
Remove the cover in the front wheel arch
(Y page 105).
X Turn housing cover :anti-clockwise and
remove it.
X Turn bulb holder ;anticlockwise and pull
out.
X Pull the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right.
X Replace the cover in the front wheel arch
(Y page 105).
Main-beam headlamps (halogen head-
lamps) X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anticlockwise and
remove it.
X Turn bulb ;anti-clockwise and remove it. Replacing bulbs
105Lights and windscreen wipers Z

X
Insert the new bulb and engage it to the stop.
X Press on housing cover :and turn it to the
right.
Side lamps/parking lamps (halogen
headlamps) X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and pull
it out.
X Pull out bulb holder ;.
X Pull the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;.
X Align housing cover :and turn it clockwise
until it engages.
Turn signal lamp (halogen headlamps) X
Switch off the lights.
X Open the bonnet.
X Turn bulb holder :anticlockwise and pull
out.
X Remove the bulb from bulb holder :.X
Insert the new bulb into bulb holder :.
X Insert bulb holder :and turn it clockwise
until it engages.
Cornering light function (Intelligent
Light System) X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anticlockwise and
remove it.
X Turn bulb holder ;anticlockwise and pull
out.
X Pull the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right. Replacing the rear bulbs
Opening and closing the side trim pan-
els View of left-hand side trim panel106
Replacing bulbsLights and windscreen wipers

You must open the side trim panel in the luggage
compartment before you can replace the bulbs
in the tail lamps.
X To open: Turn release knob :anti-clockwise
and remove side trim panel ;.
X To close: insert side trim panel ;and turn
release knob :clockwise.
Tail lamps Turn signals
X Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel (Y page 106).X
Turn bulb holder :anti-clockwise and pull
out.
X Press the bulb lightly, turn it anti-clockwise
and remove it.
X Insert the new bulb and turn it clockwise.
X Insert bulb holder :and turn it clockwise
until it engages.
X Close the side trim panel (Y page 106).
Reversing lamp and rear foglamp Due to their location, have the bulbs in the
reversing lamp and the foglamp in the tailgate
replaced at a qualified specialist workshop. X
Switch off the lights.
X Open the tailgate.
X In recess ?on the inside of the closing han-
dle, prise out and unclip ;the upper section
of handle =with a flat and smooth object,
e.g. a screwdriver and remove.
X Pull the lower section of handle :with a
strong tug to remove it from the trim and then place it to one side. X
Reach under the right-hand side of trim B
and lightly tug along the entire length of the
trim in order to unclip Ait.
X Pull out connector Cof the surround lighting
by releasing the latches.
X Place trim Bto one side. Replacing bulbs
107Lights and windscreen wipers Z

X
On the side where the bulb is to be replaced,
unclip the remaining part of trim Dfrom the
assembly using a sudden, sharp movement,
until the bulb holder is accessible. X
Remove bulb holder Eusing both sides of
lever F. Bulb holder
X Reversing lamp G: remove the bulb from
bulb holder E.
X Insert the new bulb into the bulb holder.
X Rear foglamp H: press the bulb gently into
bulb holder E, turn it anti-clockwise and
remove it from the bulb holder.
X Insert the new bulb into bulb holder and turn it
clockwise.
X Reinsert the bulb holder until you hear it
engage audibly.
X Position trim Dand engage it in place by
tapping it with your hand.
X Before continuing with the installation, check
that all the metal clips are inserted in the parts placed to one side: 2 clips ;in the upper part
of handle =and 5 clips Ain trim B.
X If not, remove the missing metal clips from
the panel apertures in the tailgate and insert
them in the corresponding positions. X
Take trim Band connect plug connector C
to the surround lighting.
i The surround lighting only illuminates when
the tailgate has been shut and reopened.
X Position trim Band engage it in place by
tapping it with your hand, starting from the
outside.
X Clip in the lower section of handle :at posi-
tion ;again.
X Insert the upper section of handle =into
lower section :and engage again with
recess ?.
Licence plate lighting X
Switch off the lights.
X Open the tailgate.
X Apply a screwdriver to lamp lens :from the
outside.
X Lever out lamp lens :and remove it.
X Replace the bulb.
X Insert lamp lens :into the licence plate lamp
and press it in until it engages. Windscreen wipers
Switching the windscreen wipers on/
off
! Do not operate the windscreen wipers when
the windscreen is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windscreen can scratch the
glass if wiping takes place when the wind-
screen is dry.
If it is necessary to switch on the windscreen wipers in dry weather conditions, always
operate them using washer fluid. 108
Windscreen wipersLights and windscreen wipers

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