2014 MERCEDES-BENZ B-CLASS HATCHBACK headlamp

X
Take 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 129).
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 ;anticlockwise and pull out.
X Insert the new bulb and engage it to the
stop.
X Press on housing cover :and turn it to the
right. Turn signal lamp (halogen headlamps)
X
Remove the cover in the front wheel arch
(Y page 129).
X Turn handle extension ;anti-clockwise
and pull it out of holder :.
X Press the bulb lightly, turn it anti-clockwise
and pull it out.
X Insert the new bulb into bulb holder :.
X Insert handle extension ;into holder :
and turn it clockwise until it engages. 130
Replacing bulbsLights and windscreen wipers

Display messages
Possible causes/consequences and
M
MSolutions front-passenger front airbag deactivation system has disa-
bled the front-passenger front airbag (Y
page 50)
R the Front-passenger airbag enabled See Owner's Front-passenger airbag enabled See Owner's
Manual
Manual orFront-passenger
Front-passenger airbag
airbagdisabled
disabled See
SeeOwn‐
Own‐
er's Manual
er's Manual display messages must not be shown in the
multifunction display.
X Wait for a period of at least 60 seconds until the necessary sys-
tem checks have been completed.
X Make sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are met, the front-passenger seat can be occu-
pied again. Whether the PASSENGER AIRBAG OFF or ON indicator
lamp remains lit or goes out depends on how the automatic front-
passenger front airbag deactivation system classifies the occu-
pant.
If the conditions are not met, the system is not operating correctly.
X Visit a qualified specialist workshop immediately.
Further information on the automatic front-passenger front airbag deactivation feature (Y page 49).Lights
i Vehicles with LED light bulbs in the light clusters:
The display message for the corresponding light will only appear if all the LEDs have failed. Display messages
Possible causes/consequences and
M MSolutions b
Left dipped beam Left dipped beam
or
Right dipped Right dipped
beam
beam The left or right-hand dipped-beam headlamp is faulty.
X Halogen headlamp: replace the bulb (Ypage 128).
X LED headlamps: consult a qualified specialist workshop. b
Trailer left tail Trailer left tail
lamp lampor
Trailer
Trailer
right tail lamp
right tail lamp The left or right-hand trailer tail lamp is faulty.
X Observe the manufacturer's operating instructions. b
Trailer left turn Trailer left turn
signal signal
orTrailerTrailer
right turn signal
right turn signal The left or right-hand trailer turn signal lamp is faulty.
X Observe the manufacturer's operating instructions. Display
messages
265On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions b
Trailer brake lamp Trailer brake lamp The trailer brake lamp is faulty.
X Observe the manufacturer's operating instructions. b
Rear left indica‐ Rear left indica‐
tor tor
orRear right
Rear right
indicator
indicator The rear left-hand or rear right-hand turn signal is faulty.
X Tail lamps (vehicles with halogen headlamps): replace the
bulb (Y page 128).
X Tail lamps (vehicles with LED headlamps): consult a qualified
specialist workshop. b
Front left indica‐ Front left indica‐
tor tor
orFront right
Front right
indicator
indicator The front left-hand or front right-hand turn signal is faulty.
X Halogen headlamp: replace the bulb (Ypage 128).
X LED headlamps: consult a qualified specialist workshop. b
Left Left
mirror
mirror indica‐
indica‐
tor
tor orRight mir‐
Right mir‐
ror indicator
ror indicator The turn signal in the left-hand or right-hand exterior mirror is
faulty.
X Visit a qualified specialist workshop. b
Third brake lamp Third brake lamp The third brake lamp is faulty.
X Visit a qualified specialist workshop. b
Left brake lamp Left brake lamp
or
Right brake lamp
Right brake lamp The left or right-hand brake lamp is faulty.
X Visit a qualified specialist workshop. b
Left main beam Left main beam
or
Right main beam
Right main beam The left or right-hand main-beam headlamp is faulty.
X Halogen headlamp: replace the bulb (Ypage 128).
X LED headlamps: consult a qualified specialist workshop. b
Number plate lamp Number plate lamp The left or right-hand licence plate lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 128).
or
X Visit a qualified specialist workshop. b
Left fog Left fog
lamp lampor
Right fog
Right fog
lamp
lamp The left or right-hand foglamp is faulty.
X Visit a qualified specialist workshop. 266
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions b
Rear fog lamp
Rear fog lamp The rear foglamp is faulty.
X Tail lamps (vehicles with halogen headlamps): replace the
bulb (Y page 128).
X Tail lamps (vehicles with LED headlamps): visit a qualified
specialist workshop. b
Front Front
left
leftparking
parking
lamp
lamp orFront
Front
right parking lamp
right parking lamp The front left or front right parking lamp is faulty.
X Visit a qualified specialist workshop. b
Reversing light Reversing light The reversing lamp is faulty.
X Tail lamps (vehicles with halogen headlamps): replace the
bulb (Y page 128).
X Tail lamps (vehicles with LED headlamps): visit a qualified
specialist workshop. b
Left tail lamp Left tail lamp
or
Right tail lamp
Right tail lamp The left or right-hand tail lamp is faulty.
X Visit a qualified specialist workshop. b
Left daytime driv‐ Left daytime driv‐
ing lamp ing lamp
orRight
Right
daytime driving
daytime driving
lamp lamp The left or right-hand daytime driving lamp is faulty.
X Visit a qualified specialist workshop. b
Malfunction See Malfunction See
Owner's Manual Owner's Manual The exterior lighting is faulty.
X Visit a qualified specialist workshop. Vehicles with trailer tow hitch: a fuse may have blown.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 181).
X Check the fuses (Y page 349).
X If necessary, replace the blown fuse. Observe the warning notes
as you do so.
If the display message continues to be displayed: X Visit a qualified specialist workshop. Display
messages
267On-board computer and displays Z