2008 MERCEDES-BENZ B-CLASS HATCHBACK bulb

4One-touch gearshifting.
....................93
Program selector button ...................94
Trailer towing. ................................... 95
Working on the vehicle .....................95
AUTOTRONIC
Releasing the parking lock man-
ually. ............................................... 243
Axle load, maximum permissible
..................................................... 287, 288B
Backrest Removing/fitting. ........................... 151
Bag hook............................................. 157
Ball coupling Fitting ............................................. 186
Removing....................................... .190
BAS (Brake Assist)............................... 55
Battery Changing (key).. .............................. 244
Charging. ........................................ 265
Checking (key). ............................... 244
Check lamp (key). ........................... 244
Disconnecting ................................. 264
Display message ............................. 213
Jump-starting. ................................. 266
Maintenance (vehicle)..................... 263
Reconnecting.................................. 266
Removing/fitting. ........................... 265
Vehicle battery. .............................. 263Belt force limiters
Activation.......................................... 37
Belt height adjustment ........................74
Belt tensioners Activation.......................................... 37
Belt warning.......................................... 74
Bonnet Bonnet catch .................................. 172
Opening/closing ............................ 171
Bonnet release lever
Release leve r.................................. 171
Brake Assist
see BAS
Brake fluid .......................................... 299
Display message ............................. 214
Brake lamps
Adaptive............................................ 56
Display message ............................. 217
Brakes
Parking brake................................... .89
Warning lamp..................................2 26
Brake system
Display message ............................. 213
Bulb
see Lamp
Bulbs
Brake lamp. .................................... 249
Cornering light. ............................... 247
Dipped-beam headlamps ................247
Licence plate lamp.......................... 250 Main-beam headlamps
...................247
Overview. ........................................ 245
Parking lamp.................................. .247
Replacing............................... .246, 248
Side lamp....................................... .247
Tail lamp ......................................... 249
Turn signal lamp. ....................248, 249 C
Calling up a malfunction see Message memory menu
Care..................................................... 192
Automatic car wash. .......................193
Exhaust tail pipes............................ 196
Headlamps. .................................... 194
High-pressure cleaners. ..................193
Parktronic. ...................................... 196
Plastic trim. .................................... 195
Rear window. .................................. 194
Side windows.................................. 194
Trailer tow hitch. ............................. 196
CD player/CD changer
Operating (on-board computer)
....................................................... 103
Central locking
Automatic locking (on-board com-
puter). ............................................. 110
Key. .................................................. 60
Central locking/unlocking button ......61 Index
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Trailer towing*
190note that the power output of the engine,
and consequently the vehicle's gradient-
climbing capability, decrease with increas-
ing altitude.
If the trailer swings from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary. G
Risk of accident
On no account should you attempt to draw
the vehicle/trailer combination out by
increasing speed. Removing the ball coupling
X Pull the protective cap off the lock in the
handwheel.
X Insert the key into the lock in the hand-
wheel.
X Turn the key clockwise.
The lock is unlocked.
X Hold the ball coupling. Pull the handwheel
away from the ball coupling and turn it
clockwise until it engages.
The green area on the ball coupling is
aligned with the red mark on the hand-
wheel. X
Pull out the ball coupling downwards.
X Clean the ball coupling if it is dirty.
X Vehicles without ECO start/stop func-
tion*: open the stowage compartment on
the right of the luggage compartment.
X Fold the trim downwards.
X Vehicles with start/stop function*:
open the luggage compartment floor.
X Remove the protective cap from the ball
coupling recess.
X Press the protective cap into the ball cou-
pling recess until it engages.
Storing the ball coupling X
Store the ball coupling with the key inser-
ted in the ball coupling recess.
X Vehicle without ECO start/stop func-
tion: Secure the ball coupling in place using
the retainer strap. G
Risk of accident
Do not carry the ball coupling in the vehicle
interior if it is not secured.
Otherwise, you and others could be injured
by the ball coupling being thrown around if
you: R
brake sharply
R change direction suddenly
R are involved in an accident Trailer power supply
When it leaves the factory, your vehicle's
trailer socket outlet is equipped with a per-
manent power supply and a power supply that
is switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
! You can connect consumers with a power
rating of up to 240 W to the permanent
power supply and up to 180 W to the power
supply that is switched on via the ignition
lock.
You must not charge a trailer battery using
the power supply.
The trailer's turn signal lamps are only guar-
anteed to function when bulbs are used.
You can obtain further information about
installing the trailer electrics from a qualified Operation
* optional
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199
Where will I find...?
...........................200
Display messages ............................. 202
Troubleshooting ................................ 222
Locking/unlocking in an emer-
gency ................................................. 241
Changing the batteries .....................243
Changing bulbs ................................. 244
Replacing the wiper blades ..............250
Flat tyre ............................................. 252
Battery ............................................... 263
Jump-starting .................................... 266
Towing and tow-starting ..................267
Fuses .................................................. 270 Practical advice
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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 217Display messages Possible cause/consequence Possible solution
. Trailer tail lamp
left
or
Trailer tail lamp
right The left-hand or right-hand trailer tail light
is faulty. X
Change the bulb. . Turn signal rear
left
or
Turn signal rear
right The rear left-hand or rear right-hand turn
signal is faulty. X
Change the bulb (Y page 244). . Turn signal left
mirror
or
Turn signal right
mirror The turn signal in the left-hand or right-
hand exterior mirror is faulty. This display
message will only appear if all LEDs are
faulty. X
Visit a qualified specialist workshop. . Turn signal front
left
or
Turn signal front
right The front left-hand or front right-hand turn
signal is faulty. X
Change the bulb (Y page 244). . Brake lamp left
or
Brake lamp right Vehicles with light and visibility pack-
age*: the left-hand or right-hand brake
lamp is faulty. X
Change the bulb (Y page 244). 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 219Display messages Possible cause/consequence Possible solution
. Parking lamp front
left
or
Parking lamp front
right Vehicles with the lights and visibility pack-
age*: the front left-hand or front right-
hand parking lamp is faulty. X
Change the bulb (Y page 244). . Reversing lamp
left
or
Reversing lamp
right Vehicles with lights and visibility pack-
age*: the left-hand or right-hand reversing
light is faulty. X
Visit a qualified specialist workshop. . Tail lamp left
or
Tail lamp right Vehicles with lights and visibility pack-
age*: the left-hand or right-hand tail lamp
is faulty. X
Change the bulb (Y page 244). N Add 1.0 litreof
engine oil when
next refuelling Vehicles with a diesel engine: the oil level
is too low. X
Check the oil level (Y page 172).
X If necessary, top up the motor oil.
X Have the engine checked for leaks if the engine
oil needs topping up more often than usual. N Engine oil pres-
sure Stop car, turn
eng. off Vehicles with a petrol engine: the engine
oil pressure is too low. There is a risk of
engine damage. X
Stop in accordance with traffic conditions.
X Switch off the engine.
X Check the oil level (Y page 172).
X If necessary, top up the motor oil. Practical advi
ce
* optional
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Changing bulbs
244 Key
Checking the batteries X
Press the jork button.
The batteries are in order if the battery
charge indicator lamp lights up briefly.
Changing the batteries You require two CR 2025 3 V cell batteries.
X Remove the emergency key element from
the key (Y page 241). 1
Emergency key element
2 To release the battery tray
3 To pull out the battery tray
4 Battery tray X
Using emergency key element 1, press
the grey release catch in the opening in the
direction of arrow 2.
Battery tray 4is released.
X Pull battery tray 4out of the key in the
direction of arrow 3. X
Remove old batteries 1from the battery
tray.
X Insert the new batteries underneath con-
tact spring 2with the positive terminal
facing upwards. Use a lint-free cloth to do
so.
X Push the battery tray back into the key
housing until the battery tray engages.
X Check the function of all key buttons on the
vehicle. Changing bulbs
Notes on changing bulbs
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times. G
Risk of injury
Bulbs and lamps can be very hot. You
should therefore allow them to cool down
before you change them. Otherwise, you
could be burned if you touch them.
Keep bulbs out of the reach of children.
Otherwise, they could damage them, for
example, and injure themselves.
Never use a bulb which has been dropped.
Such a bulb may explode and injure you.
H7 bulbs are pressurised and could explode
when you change them, particularly if they
are very hot. You should therefore wear eye
protection and gloves when you are chang-
ing them. G
Risk of injury
Xenon bulbs carry a high voltage. You could
get an electric shock and be seriously or
even fatally injured if you touch the electric
contacts on xenon bulbs. Therefore, never
remove the cover from xenon bulbs. Practical advice
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