2008 MERCEDES-BENZ B-CLASS HATCHBACK headlamp

Engine compartment
175H
Environmental note
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would oth-
erwise be damaging the environment.
For further information on engine oil
(Y page 295). Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. The coolant temperature
gauge must display less than 70 °C. You
could otherwise be scalded by escaping hot
coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant level The coolant expansion tank is located in the
engine compartment on the right when
viewed in the direction of travel.
1
Cap
2 Coolant expansion tank
3 Marker bar
X Slowly turn cap 1half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with marker
bar 3in the filler neck when cold or
approximately 1.5 cm higher when hot. X
Top up the coolant if necessary.
X Replace cap 1and tighten all the way to
the stop.
For further information on coolant see
(Y page 297) . Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the left-hand side of
the vehicle when viewed in the direction of
travel. The headlamp cleaning system is also
supplied from the washer fluid reservoir. 1
Cap
X Add windscreen washer concentrate to the
washer fluid all year round. Operation
* optional
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Driving ab
road 185Driving on wet roads
If water has accumulated to a certain depth
on the road surface, there is a danger of aqua-
planing occurring, even if:
R you drive at low speeds
R the tyres have adequate tread depth
For this reason, do not drive in tyre ruts, and
brake carefully. Driving on flooded roads
If you have to drive on stretches of road on
which water has collected, please bear in
mind that:
R the maximum permitted still water depth is
25 cm.
R you should drive no faster than at walking
pace.
! Bear in mind that vehicles travelling in
front or in the opposite direction create
waves. This may cause the maximum per-
missible water depth to be exceeded.
Failure to observe these notes may result
in damage to the engine, electrical systems
and transmission. Driving abroad
Points to remember
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's current telephone numbers
for use when you are abroad are to be found
in the "Service24h" chapter of the Service
Booklet.
Only low-octane fuel is available in certain
countries.
You can find further information about fuel
grades on (Y page 168). Symmetrical dipped beam
If your journey takes you to countries where
vehicles are driven on sides of the road oppo-
site to the country in which the vehicle is reg-
istered, your headlamps must be switched to
symmetrical dipped beam. Oncoming traffic
will be dazzled less.
X Have the headlamps switched over at a
qualified specialist workshop, e. g. a
Mercedes-Benz Service Centre. G
Risk of accident
Remember to set the headlamps back to
asymmetrical dipped beam when you return to driving on the same side of the
road as that of the country in which your
vehicle was registered. You may otherwise
dazzle the oncoming traffic and could cause
an accident. Operation
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Care
194nozzle of the high-pressure cleaner and the
vehicle (at least 30 cm).
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door joint
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
Damaged seals or electrical components
can lead to failures or leaks.
Cleaning the wiper blades and the out-
side of the windscreen G
Risk of injury
Before cleaning the windscreen or wiper
blades, turn the key in the ignition to 0.
Otherwise, the windscreen wipers may
move and injure you. X
Turn the key to position 1(Y page 62) in
the ignition lock.
X Set the windscreen wipers to position
I(Y page 82) on the combination switch.
X Turn the key to position 0(Y page 62) or
remove it when the wiper arms are vertical.
! Only fold the windscreen wipers away
from the windscreen when vertical. Other-
wise, you will damage the bonnet.
X Fold the wiper arms away from the wind-
screen.
X Wipe the windscreen and wiper blades with
a damp, lint-free cloth (e.g. a microfibre
cloth) and cleaning agent.
X Fold the wiper arms back on to the wind-
screen before the ignition is switched on.
! Do not clean the wiper blades too often
as this will result in damage to the surface
coating, leading to wiper noise.
Cleaning the windows !
Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows.
Clean the insides of the windows with a
damp cloth or commercially-available glass cleaner. Avoid touching the inside of the
rear windscreen and the side windows with
hard objects, e.g. ice scrapers or rings. You
could otherwise cause damage to the win-
dows, rear window heating or aerial on the
rear window.
i Anti-glare film retrofitted to the insides of
the windows could interfere with radio or
mobile phone reception, especially if it is
conductive or metal-coated film. Informa-
tion about anti-glare film can be obtained
from any Mercedes-Benz Service Centre.
Cleaning the headlamps X
Clean the plastic lenses of the headlamps
with a damp sponge.
! Only use washer fluid which is suitable
for plastic lenses. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
Do not use the following:
R dry cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvent Operation
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Display
messages 216 Display messages Possible cause/consequence Possible solution
. Cornering light
left
or
Cornering light
right The left-hand or right-hand cornering
light* is faulty. X
Change the bulb (Y page 244). . Dipped-beam left
or
Dipped-beam right Vehicles with the light and visibility pack-
age*: the left-hand or right-hand dipped-
beam headlamp is faulty. X
Halogen headlamp: replace the bulbs
(Y page 244).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. . Active light func-
tion currently
inoperative
The active light function* is faulty. X
Visit a qualified specialist workshop. . AUTO lights inop-
erative The light sensor is faulty. The constant
headlamp mode (daytime driving lights) is
switched on. X
Switch the lights to manual control in the on-
board computer (Y page 108).
X Switch the lights on and off using the light
switch. . Trailer turn sig-
nal left
or
Trailer turn sig-
nal right The left-hand or right-hand trailer turn sig-
nal lamp is faulty. X
Change the bulb. Practical advi
ce
* optional
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Display
messages 218 Display messages Possible cause/consequence Possible solution
. 3rd brake lamp Vehicles with the lights and visibility pack-
age*: the third brake lamp is faulty. The
display message will only appear if all
LEDs are faulty. X
Visit a qualified specialist workshop. . Main-beam left
or
Main-beam right Vehicles with light and visibility pack-
age*: the left-hand or right-hand high
beam is faulty. X
Halogen headlamp: replace the bulbs
(Y page 244).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. . Licence plate lamp Vehicles with the lights and visibility pack-
age*: the left-hand or right-hand licence
plate lamp is faulty. X
Visit a qualified specialist workshop. . Switch off lights The light is switched on when you leave
the vehicle. X
Turn the light switch to MorU.
or
X If the rear foglamp is switched on: press the
light switch in to the stop. . Foglamp left
or
Foglamp right Vehicles with the lights and visibility pack-
age*: the left-hand or right-hand fog-
lamp* is faulty. X
Visit a qualified specialist workshop. . Rear foglamp Vehicles with the lights and visibility pack-
age*: the rear foglamp is faulty. X
Visit a qualified specialist workshop. Practical advi
ce
* optional
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Display
messages 221Display messages Possible cause/consequence Possible solution
¿ There is only a small amount of fuel in the
fuel tank. X
Refuel at the nearest filling station. 4 Reserve fuel level The fuel level has fallen below the reserve
range. X
Refuel at the nearest filling station. t Enter PIN You have not yet logged on to your mobile
phone*. X
Enter the PIN for the SIM card. t Bluetooth ready The Bluetooth connection between your
mobile phone and the audio system* or
COMAND APS* is not activated. X
If desired, activate the Bluetooth connection
between the mobile phone and the audio sys-
tem* or COMAND APS* (see separate operat-
ing instructions). t No telephone Your mobile phone is not inserted in the
bracket*. X
Insert the mobile phone into the
bracket* ( Ypage 163). W Top up washer fluid
Vehicles with bi-xenon headlamps*: The
washer fluid level in the washer fluid res-
ervoir has dropped below the minimum. X
Top up the windscreen washer fluid
(Y page 175). Practical advi
ce
* optional
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Troubleshooting
237Headlamps
Problem Possible cause/consequence Suggested solutions
The headlamps or the turn signals
in the exterior mirrors are misted
up on the inside. Air humidity is very high. X
Drive with the headlamps switched on.
The headlamps are demisted after a short distance. The headlamp housing is not
sealed and moisture has been
able to enter. X
Have the headlamps checked at a qualified specialist workshop. Windscreen wipers
Problem Possible cause/consequence Suggested solutions
The windscreen wipers are jam-
med. 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 com-
pletely. G
Risk of accident
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. Practical advice
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Changing bulbs
245Do not change xenon bulbs yourself, but
have them replaced at a qualified specialist
workshop which has the necessary special-
ist knowledge and tools to carry out the
work required.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this
purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist work-
shop. Overview Front bulbs
Bulb Type
1
Additional turn
signal lamp
LEDs
29 2
Parking lamp/
side lamp W 5 W
3
Main-beam
headlamps
30
/
main-beam spot
lamps* 31 H7 55 W
4
Turn signal lamp PY 21 W
5
Dipped-beam
headlamps/
active light func-
tion* H7 55 W
or
D1S 35 W*
32 6
Front fog-
lamp*/corner-
ing light* H11 55 W
29
LEDs do not need replacing as they are designed for an unlimited service life.
30 Vehicles with halogen headlamps.
31 Vehicles with bi-xenon headlamps*
32 Vehicles with xenon headlamps*: always have these bulbs changed at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Practical advice
* optional
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