headlamp MERCEDES-BENZ B-Class ELECTRIC 2016 W246 User Guide

Do not use a bulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
Ryou touch it
Rit is hot
Ryou drop it
Ryou scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
bulbs of the same type and the specified volt- age.
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 opera-
tion. Do not allow bulbs to come into contact
with liquids.
There are bulbs other than the Xenon bulbs
that you cannot replace. Only replace the
bulbs listed (
Ypage 105). Have the bulbs that
you cannot replace yourself changed at a
qualified 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 sa fety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Overview: changing bulbs/bulb types
You can replace the following bulbs. The bulb
type can be found in the legend.
Vehicles with halogen headlamps
:
Turn signal lamp: PY 21 W
;High-beam headlamp: H7 55 W
=Parking lamp/standing lamp: W 5 W LL
?Low-beam headlamp: H7 55 W
Vehicles with Bi-Xenon headlamps
:
Cornering lamp: H7 55 W
Tail lamps (vehicles with halogen headlamps)
:
Rear fog lamp: P 21 W
;Backup lamp: W 16 W
Replacing bulbs105
Lights and windshield wipers
Z

License plate lamp (vehicles with halogen head-
lamps)
:
License plate lamp: C 5 W
Changing the front bulbs
Removing and installing the cover in the
front wheel housing
You must remove the cover of the front wheel
housing before you can change the front turn signal lamp.
XTo remove: switch off the lights.
XTurn the front wheels inwards.
XSlide cover:upwards.
Cover :is released.
XUnclip cover :.
XTo install:push cover ;up.
XTo install: clip in cover :.
XPush cover:down.
Cover :is locked.
Low-beam headlamps (halogen head-
lamps)
XRemove the cover in the front wheel hous-
ing (
Ypage 106).
XTurn housing cover :counter-clockwise
and remove it.
XTurn bulb holder ;counter-clockwise and
pull out.
XPull the bulb out of bulb holder ;.
XInsert the new bulb into bulb holder ;.
XInsert bulb holder;and turn it clockwise.
XPress on housing cover :and turn it to the
right.
XReplace the cover in the front wheel hous-
ing (
Ypage 106).
High-beam headlamps (halogen head-
lamps)
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise
and remove it.
106Replacing bulbs
Lights and windshield wipers

XTurn bulb;counter-clockwise and pull it
out.
XInsert the new bulb and engage it to the
stop.
XPress on housing cover :and turn it to the
right.
Parking lamps/standing lamps (halo-
gen headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise
and pull it out.
XPull out bulb holder ;.
XPull the bulb out of bulb holder ;.
XInsert the new bulb into bulb holder ;.
XInsert bulb holder;.
XAlign housing cover :and turn it clock-
wise until it engages.
Turn signals (halogen headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn bulb holder :counter-clockwise and
pull out.
XPull the bulb out of bulb holder :.
XInsert the new bulb into bulb holder :.
XInsert bulb holder:and turn it clockwise
until it engages.
Cornering light function (Xenon bulbs)
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise
and remove it.
XTurn bulb holder ;counter-clockwise and
pull out.
XPull the bulb out of bulb holder ;.
XInsert the new bulb into bulb holder ;.
XInsert bulb holder;and turn it clockwise.
XPress on housing cover :and turn it to the
right.
Changing the rear bulbs
Tail lamps
Backup lamp and rear fog lamp
Due to their location, have the bulbs in the
backup lamp and the rear fog lamp in the tail-
gate replaced at a qualified specialist work-
shop.
Replacing bulbs107
Lights and windshield wipers
Z

Display messagesPossible causes/consequences andMSolutions
is on, OCS has disabled the front-passenger front air bag
(
Ypage 50)
RtheFront Passenger Air Bag Enabled See Opera‐
tor's Manualor Front Passenger Air Bag Disabled
See Operator's Manualdisplay messages must not be
shown in the multifunction display
XWait fo raperiod of at least 60 seconds until the necessary sys-
te m checks have been completed.
XMake sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIRBA G OFF or ON
indicator lamp remains lit or goes out depends on how OCS clas-
sifies the occupant.
If th e conditions are not fulfilled, the system is not operating cor-
rectly.
XVisit a qualified specialist workshop immediately.
Fo r further information about the Occupant Classification System,
see (
Ypage 50).
Lights
i
Vehicles with LED bulbs in the light clusters:
The display message for the corresponding lamp only appears when all of the LEDs in the
lamp have failed.
Display messagesPossible causes/consequences and MSolutions
b
Check Left Corner‐
ing LightorCheck
Right Cornering
Light
The left or right-hand cornering light is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Check Left Low
Beamor Check
Right Low Beam
The left or right-hand low-beam headlamp is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
214Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
b
Active Headlamps
Inoperative
The active light function is faulty.
XVisit a qualified specialist workshop.
b
Malfunction See
Operator's Manual
The exterior lighting is defective.
XVisit a qualified specialist workshop.
b
AutoLampFunction
Inoperative
The light sensor is defective.
XVisit a qualified specialist workshop.
b
Switch Off Lights
The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
XTurn the light switch to the Ãposition.
b
SwitchOnHeadlamps
You are driving with low-beam headlamps switched off.
XTurnthe light switch to the Lorà position.
Display messages217
On-board computer and displays
Z