light MERCEDES-BENZ B-CLASS HATCHBACK 2015 Repair Manual

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

!
If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may be
due to wax or other residue. Clean the wind-
screen with washer fluid after an automatic
car wash. Combination switch
1
$ Windscreen wipers off
2 Ä Intermittent wipe, low (rain sensor set
to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/î wipes the wind-
screen using washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 126).
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
screen becomes dirty in dry weather condi-
tions, the windscreen wipers may be activa-
ted inadvertently. This could damage the
windscreen wiper blades or scratch the wind- screen.
For this reason, you should always switch off
the windscreen wipers in dry weather.
Vehicles with a rain sensor: in the ÄorÅ
position, the appropriate wiping frequency is
automatically set according to the intensity of
the rain. In the Åposition, the rain sensor is
more sensitive than in the Äposition, caus-
ing the windscreen wiper to wipe more fre-
quently.
If the wiper blades are worn, the windscreen will
no longer be wiped properly. This could mean
you are unable to observe the traffic conditions. Switching the rear window wiper on/
off Combination switch
:
è Switch
2 ô Wipes with washer fluid
3 ISwitches on intermittent wiping
4 0Switches off intermittent wiping
5 ô Wipes with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 126).
X Slide switch :on the combination switch to
the corresponding position.
When the rear window wiper is switched on,
the è symbol appears in the assistance
graphic in the instrument cluster. Further
information on the assistance graphic
(Y page 182). Replacing the wiper blades
Important safety notes G
WARNING
If the windscreen wipers begin to move while
you are changing the wiper blades, you can be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windscreen wipers and
ignition before changing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
! Never open the bonnet/tailgate if a wiper
arm is folded away from the windscreen/rear
window. Windscreen wipers
109Lights and windscreen wipers Z

Never fold a windscreen wiper arm without a
wiper blade back onto the windscreen/rear
window.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release the
wiper arm without a wiper blade and it falls
onto the windscreen/rear window, the wind-
screen/rear window may be damaged by the
force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
Replacing the windscreen wiper blades (variant 1) Removing the wiper blades
X Vehicles without KEYLESS-GO: remove the
key from the ignition lock.
X Vehicles with KEYLESS-GO: switch off the
engine.
X Fold the wiper arm away from the windscreen. X
Press both release clips ;.
X Fold wiper blade :in the direction of
arrow =away from wiper arm ?.
X Remove wiper blade :in the direction of
arrow A. Fitting the wiper blades X
Position new wiper blade :with recess B
on lug A.
X Fold wiper blade :in the direction of arrow
= onto the wiper arm until retaining clips ;
engage in bracket ?.
X Make sure that wiper blade :is seated cor-
rectly.
X Fold the wiper arm back onto the windscreen.
Replacing the windscreen wiper blades (variant 2) Removing the wiper blades
X Vehicles without KEYLESS-GO: remove the
key from the ignition lock.
X Vehicles with KEYLESS-GO: switch off the
engine.
X Fold the wiper arm away from the windscreen. X
Hold onto the wiper arm with one hand. With
the other hand, turn the wiper blade in the
direction of arrow :away from the wiper arm
as far as it will go.
X Slide catch ;in the direction of arrow =
until it engages in the removal position with a noticeable click. 110
Windscreen wipersLights and windscreen wipers

X
Remove the wiper blade in the direction of
arrow ?away from the wiper arm.
Fitting the wiper blades X
Insert the new wiper blade into the wiper arm
in the direction of arrow :.X
Slide catch ;in the direction of arrow =
until it engages in the locking position with a
noticeable click.
X Make sure that the wiper blade is seated cor-
rectly.
X Fold the wiper arm back onto the windscreen. X
Remove protective film :of the service indi-
cator on the tip of the wiper blade.
If the colour of the service indicator changes
from black to yellow, the wiper blades should be replaced.
i The duration of the colour change varies
depending on the usage conditions.
Replacing the rear window wiper blade Removing the wiper blades
X
Remove the key from the ignition lock.
X Fold wiper arm :away from the rear window
until you feel it engage.
X Position wiper blade ;at a right angle to
wiper arm :.
X Hold wiper arm :and press wiper blade ;
in the direction of the arrow until it releases.
X Remove wiper blade ;.
Fitting a wiper blade
X Place new wiper blade ;onto wiper arm :.
X Hold wiper arm :and press wiper blade ;
in the opposite direction to the arrow until it
engages. Windscreen wipers
111Lights and windscreen wipers Z

X
Make sure that wiper blade ;is seated cor-
rectly.
X Position wiper blade ;parallel to wiper
arm :.
X Fold wiper arm :back onto the rear window. 112
Windscreen wipersLights and windscreen wipers

Problems with the windscreen wipers
Problem
Possible causes/consequences and
M
MSolutions The windscreen wipers
are jammed. Leaves or snow, for example, may be obstructing the windscreen
wiper movement. The wiper motor has been deactivated.
X For safety reasons, you should remove the key from the ignition
lock.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers
fail completely. The windscreen wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist work-
shop. The windscreen washer
fluid from the spray noz-
zles no longer hits the
centre of the wind-
screen. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at a qualified specialist workshop. Windscreen wipers
113Lights and windscreen wipers Z