headlamp MERCEDES-BENZ B-CLASS HATCHBACK 2015 Owner's Manual

Display messages
Possible causes/consequences and
M
MSolutions Further information on the automatic front-passenger front airbag
deactivation feature (Y page 42).Lights
i Vehicles with LED light bulbs in the light clusters:
The display message for the corresponding lamp only appears when all the LEDs in the lamp have
failed. Display messages
Possible causes/consequences and
M
MSolutions b
Left cornering Left cornering
light light
orRight cor‐
Right cor‐
nering light
nering light The left or right-hand cornering light is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Consult a qualified specialist workshop. b
Left dipped beam Left dipped beam
or
Right dipped beam
Right dipped beam The left or right-hand dipped-beam headlamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Consult a qualified specialist workshop. b
Rear Rear
left
leftindicator
indicator
or Rear right indi‐
Rear right indi‐
cator
cator The rear left-hand or rear right-hand turn signal is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X 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 Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Consult a qualified specialist workshop. b
Left mirror indica‐ Left mirror indica‐
tor tor
orRight mirror
Right mirror
indicator
indicator The turn signal in the left-hand or right-hand exterior mirror is faulty.
X Consult a qualified specialist workshop. b
Third brake lamp Third brake lamp The third brake lamp is faulty.
X Consult a qualified specialist workshop. b
Left brake Left brake
lamp lampor
Right brake
Right brake
lamp
lamp The left or right-hand brake lamp is faulty.
X Consult a qualified specialist workshop. Display
messages
201On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions 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 Check whether you are permitted to replace the bulb yourself
(Y page 103).
or X 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 103).
or
X Consult a qualified specialist workshop. b
Rear foglamp Rear foglamp The rear foglamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or X Consult a qualified specialist workshop. b
Front left parking Front left parking
lamp lamp
orFront right
Front right
parking lamp
parking lamp The front left or front right parking lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or X Consult a qualified specialist workshop. b
Reversing light Reversing light The reversing lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Consult 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 Consult a qualified specialist workshop. b
Left daytime driv‐ Left daytime driv‐
ing lamp ing lamp
orRight
Right
daytime
daytime driving
drivinglamp
lamp The left or right-hand daytime driving lamp is faulty.
X Consult a qualified specialist workshop. b
Intell. Light Sys‐ Intell. Light Sys‐
tem inoperative tem inoperative The Intelligent Light System is faulty. The lights remain available with-
out the Intelligent Light System.
X Consult a qualified specialist workshop. b
Malfunction Malfunction
See
SeeOwn‐
Own‐
er's Manual
er's Manual The exterior lighting is faulty.
X Consult a qualified specialist workshop. 202
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions b
AUTO lights inoper‐ AUTO lights inoper‐
ative ative The light sensor is faulty.
X
Consult a qualified specialist workshop. b
Switch off lights Switch off lights The lights are still switched on when you leave the vehicle. A warning
tone also sounds.
X Turn the light switch to the Ãposition. b
Switch on headlamps Switch on headlamps You are driving without dipped-beam headlamps.
X
Turn the light switch to the Lorà position. Adaptive Main-beam Adaptive Main-beam
Assist currently Assist currently
unavailable unavailable
See
SeeOwn‐
Own‐
er's Manual
er's Manual Adaptive Highbeam Assist is deactivated and temporarily inoperative.
Possible causes:
R the windscreen is dirty in the camera's field of vision
R visibility is impaired due to heavy rain, snow or fog
X Clean the windscreen.
If the system detects that the camera is fully operational again, the Adaptive Main-beam Assist available again
Adaptive Main-beam Assist available again message is dis-
played.
Adaptive Highbeam Assist is operational again. Adaptive Main-beam Adaptive Main-beam
Assist inoperative Assist inoperative Adaptive Highbeam Assist is faulty.
X
Consult a qualified specialist workshop. Display
messages
203On-board computer and displays Z

X
If necessary, top up with coolant that has
been tested and approved by Mercedes-Benz.
X Replace cap :and turn it clockwise as far as
it will go.
For further information on coolant, see
(Y page 283).
Topping up the windscreen washer sys-
tem/headlamp cleaning system G
WARNING
Certain components in the engine compart-
ment may be very hot, e.g. the drive system
and radiator. When carrying out work in the
engine compartment there is a risk of injury.
If possible, let the drive system cool down and only touch the components described in the
following. G
WARNING
Windscreen washer concentrate is highly
flammable. If it comes into contact with hot
components in the front compartment, it may ignite. There is a risk of fire and injury.
Make sure that windscreen washer concen-
trate is not spilled next to the filler neck. X
To open: pull cap:upwards by the tab.
X Top up with the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windscreen washer system and the headlamp
cleaning system.
On vehicles with the headlamp cleaning system,
the recommended minimum washer fluid level is 3.5 litres. On vehicles not equipped with the headlamp
cleaning system, the recommended minimum
washer fluid level is 1 litre.
If the washer fluid level drops below 1 litre, a
message appears in the multifunction display
prompting you to top up the washer fluid
(Y page 212).
Further information on windscreen washer
fluid/antifreeze (Y page 284). ASSYST PLUS
Service message
The ASSYST PLUS service interval display
informs you of the next service due date.
You can find information on the type of service
and service intervals in the Service Booklet.
You can obtain further information from a
Mercedes-Benz Service Centre.
The multifunction display shows a service mes-
sage for a few seconds, e.g.:
R Service A in .. days
Service A in .. days
R Service A due Service A due
R Service A overdue by .. days
Service A overdue by .. days
Depending on the operating conditions of the
vehicle, the remaining time or distance until the
next service due date is displayed.
The letter indicates which service is due. A A
stands for a minor service and B
Bfor a major ser-
vice. A number or another letter may be dis-
played after the letter.
Only for certain countries: the position after the
letter A
A or B Bindicates any necessary additional
maintenance work. If you notify a qualified spe-
cialist workshop of this display, you will receive
a statement on the associated costs.
The ASSYST PLUS service interval display does
not take into account any periods of time during which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
X Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
X After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display. ASSYST PLUS
241Maintenance and care Z

i
The coolant is checked at every mainte-
nance interval at a qualified specialist work-
shop. Windscreen washer system and head-
lamp cleaning system
Important safety notes G
WARNING
If windscreen washer concentrate comes into contact with hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure the windscreen washer concen-
trate does not come into contact with the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or MB
WinterFit. Unsuitable washer fluid could dam-
age the plastic lenses of the headlamps.
! Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
! Only the washer fluids SummerFit and Win-
terFit can be mixed. Otherwise, the spraying
nozzles could become blocked.
Comply with the important safety notes for ser-
vice products when handling washer fluid
(Y page 282).
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture of
water and washer fluid, e.g. MB SummerFit.
Mix 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture of
water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-
mation on the antifreeze reservoir.
i Add washer fluid concentrate, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid all
year round. Vehicle data
General notes
Please note that for the specified vehicle data: R the heights specified may vary as a result of:
- tyres
- load
- condition of the suspension
- optional equipment
R optional equipment reduces the maximum
payload
R vehicle-specific weight information can be
found on the vehicle identification plate
(Y page 281).
R only for certain countries: you can find vehi-
cle-specific vehicle data in the COC docu-
ments (CERTIFICATE OF CONFORMITY).
These documents are delivered with your
vehicle.
R The range values were determined in the
respective, currently valid version according
to Regulation (EC) No. 715/2007.
The range depends on the drive program selec-
ted and can vary due to:
R higher and lower outside temperatures
R the style of driving
R activated electrical consumers
i Information on the range can be found in the
Trip Trip menu (Y page 178). Dimensions and weights284
Vehicle dataTechnical data