2008 MERCEDES-BENZ B-CLASS HATCHBACK key battery

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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8
Instrument cluster
............................... 96
Overview. .......................................... 26
Selecting the language (on-board
computer). ...................................... 107
Instrument lighting.............................. 97
Integrated child seat............................ 50
Interior lighting Automatic control system .................81
Delayed switch-off (on-board
computer). ...................................... 109
Emergency lighting. ..........................81
Manual control.................................. 80
Reading lamp .................................... 80
Interior motion sensor......................... 58
ISOFIX child seat securing system .....48 J
Jack...................................................... 200 Operation........................................ 258
Jump-starting ...................................... 266
Jump leads ...................................... 266K
Key......................................................... 60 Changing the battery ......................244
Checking the battery ......................244
Display message ............................. 220
Loss. ............................................... 239Malfunction..................................... 239
Modifying the programming. .............60
Key positions
Key. .................................................. 62
Kickdown.............................................. 95 L
Lamp Display message ............................. 216
Lamps
see Warning and indicator lamps
Lashing eyelets.................................. 146
Licence plate lighting Display message ............................. 218
Lighting
see Lights
Lights
Automatic headlamp mode. ..............77
Constant headlamp mode. ................77
Cornering light function ....................80
Dipped-beam headlamps ..................77
Display messages ........................... 216
Foglamps. ......................................... 77
Hazard warning lamps. .....................79
Headlamp flasher.............................. 78
Headlamp range. .............................. 79
Light switch. ..................................... 76
Main-beam headlamps..................... .78
Rear foglamp .................................... 77Switching off (display message)...... 218
Turn signals.
..................................... 78
LIM indicator lamp
Cruise control. ................................ 115
Variable Speedtronic. .....................117
Load compartment load, maximum
..................................................... 287, 288
Loading guidelines .............................144
Locking Automatic. ........................................ 61
Emergency locking .........................242
From the inside (central locking
button) .............................................. 61
Luggage compartment enlarge-
ment.................................................... 149
Luggage compartment floor Adjusting the height .......................154
stowage well, unde r........................ 153
Luggage cover .................................... 157
Luggage net........................................ 144
Lumbar support .................................... 68 M
Main-beam headlamps Display message ............................. 218
Main fuse box..................................... 271
Maintenance Battery ............................................ 263Index
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Opening and closing
60 Opening and closing
Key
The key centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap G
Risk of accident
If children are left unsupervised in the vehi-
cle, they could:
R open a door from the inside at any time,
even if it has been locked
R start the vehicle using a key which has
been left in the vehicle
R release the parking brake
They could, thereby, endanger themselves
and others. Never leave children unsuper-
vised in the vehicle. Always take the key
with you when leaving the vehicle, even if
you are only leaving it for a short time. 1
Battery check lamp
2 j To lock the vehicle
3 Emergency key element release catch
4 k To unlock the vehicle
When unlocking, the turn signals flash once.
When locking, they flash three times.
If you do not open either a door or the tailgate
after you have unlocked the vehicle, it will
automatically relock after approximately 40
seconds.
Individual settings You can change the setting of the locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
could be useful if you frequently travel on your
own.X
To change the setting: press thek
and j buttons simultaneously for
approximately six seconds until the battery
check lamp flashes twice.
The key now functions as follows:
X To unlock the driver's door: press the
k button once.
X To unlock centrally: press thekbut-
ton twice.
X To lock centrally: press thejbutton.
Restoring the factory settings X
Press the kandj buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice.
Additional information R
Convenience closing (Y page 85)
R Convenience opening (Y page 84)
R Opening and closing in an emergency
(Y page 241) Controls
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Steering wheel
69
The system automatically switches down
from level 2to level 1after approximately
ten minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button1repeatedly
until the desired heating level is set.
X To switch off: press button1repeatedly
until all indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off. Steering wheel
G
Risk of accident
Only adjust the steering wheel when the
vehicle is stationary and do not pull away
until the steering wheel adjustment mech-
anism is locked in position. You might oth-
erwise drive without the steering wheel
adjustment mechanism being locked in
position. As a result you could be distracted
from road and traffic conditions by an unex-
pected movement of the steering wheel
and thereby cause an accident.
However, the steerability of the vehicle is
not affected.
When you adjust the steering wheel, make
sure that:
R the steering wheel can be reached with
your arms slightly bent
R you can move your legs freely
R you can see all the displays in the instru-
ment cluster clearly 1
Release lever
2 Height adjustment
3 Fore-and-aft adjustment
X Pull handle 1out completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push handle 1in completely until you hear
it engage.
The steering wheel is locked in position. Controls
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Mirrors
71
Adjusting the exterior mirrors
1
Adjustment button
2 Right-hand exterior mirror
3 Left-hand exterior mirror
X Make sure that the key is in position 1or
2 in the ignition lock.
X Press button 2for the right-hand exterior
mirror or button 3for the left-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button 1as long
as the indicator lamp is lit.
X Press adjustment button 1up, down, to
the right or to the left until the exterior mir- ror is set to a position which provides you
with a good overview of traffic conditions.
Folding the exterior mirrors in or out
electrically* 1
To fold the exterior mirrors in or out
X Make sure that the key is in position 1or
2 in the ignition lock.
X Briefly press button 1.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while the vehicle is
in motion; otherwise, they may vibrate. Resetting the exterior mirrors If the battery has been disconnected or has
become discharged, the exterior mirrors
must be reset. If this is not done, the exterior
mirrors will not fold in when you select the
"Fold in mirrors when locking" function in the
on-board computer (Y page 110).
X Make sure that the key is in position 1in
the ignition lock.
X Briefly press button 1.
Folding the exterior mirrors in or out
automatically* If the "Fold in mirrors when locking" function
is activated in the on-board computer
(Y
page 110):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the out-
side.
R The exterior mirrors fold out again auto-
matically as soon as you unlock the vehicle
and then open the driver's or front-
passenger door.
i If you have activated this function and fold
in the exterior mirrors using button 1, they
will not be folded out automatically. You Controls
* optional
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Lights
77
while the ignition is switched off (ignition
key in position
0).
! Switch off the side lamps and parking
lamp when you leave the vehicle. This pre-
vents the battery from discharging.
Dipped-beam headlamps X
Turn the ignition key to position 2in the
ignition lock or start the engine.
X To switch on: turn the light switch to
B.
The B indicator lamp in the instrument
cluster lights up.
Constant headlamp mode In countries in which constant headlamp
mode is not a legal requirement, you can
make this a setting using the on-board com-
puter.
You can activate or deactivate "constant
headlamp mode" using the on-board com-
puter (Y
page 108).
X To switch on: turn the light switch to
M orU.
The dipped-beam headlamps are switched
on when the engine is running. i
When you turn the light switch to any
position other than MorU, the cor-
responding light goes on.
Automatic headlamp mode G
Risk of accident
If the light switch is set to the Ãposi-
tion, the light will not come on automati-
cally in foggy conditions. This could endan-
ger you and others. Therefore, turn the light
switch to Lin the dark or in fog.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehi-
cle's lighting at all times. G
Risk of accident
When it is dark or foggy, turn the light
switch from ÃtoL in good time.
Otherwise, the headlamps could switch off
temporarily and you could cause an acci-
dent.
X To switch on: turn the light switch to
U.
Key in position 1in the ignition lock: the
side lamp is switched on or off automati-
cally, depending on the brightness of the
ambient light. Starting the engine: the dipped-beam head-
lamps are also switched on or off automat-
ically, depending on the brightness of the
ambient light.
When the dipped-beam headlamps are
switched on, the
Bindicator lamp in the
instrument cluster lights up.
Front foglamps*/Rear foglamp G
Risk of accident
If you suspect that driving conditions will be
foggy, turn the light switch to Lbefore
you start your journey. Otherwise, your
vehicle may not be visible and you could
endanger yourself and others.
When the light switch is set to Uyou can-
not switch on the front* or rear foglamps.
X Turn the key to position 2in the ignition
lock.
X To switch on the front foglamps*: turn
the light switch to the BorC posi-
tion.
X Pull the light switch out to the first detent.
The ¥ green indicator lamp next to the
light switch lights up. Controls
* optional
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Side windows
84
X
Turn the key to position 2in the ignition
lock.
i You can still operate the side windows
when the key is in the 0position or when
the key has been removed. However, this
is only possible for a maximum of five
minutes afterwards, or until the driver's or
front-passenger door is opened.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
i If you operate the switch beyond its pres-
sure point, it will trigger automatic opera-
tion in the corresponding direction. You can
stop automatic operation by pressing
again.
Closing with increased force and with-
out the anti-entrapment feature G
Risk of injury
Closing the side windows with increased
force or without the anti-entrapment fea-
ture could lead to serious or even fatal
injury. Make sure that nobody can become
trapped when closing the side windows. If a side window blocks during closing and
reopens slightly:
X
Immediately after the window blocks, pull
on the corresponding switch again until the
side window has closed.
The side window is closed with increased
force.
If a side window blocks again during closing
and reopens slightly:
X Immediately after the window blocks, pull
on the corresponding switch again until the
side window has closed.
The side window is closed without the anti-
entrapment feature. Resetting the side windows
You must reset each side window if:
R the battery has been disconnected or has
become discharged.
R the side window no longer opens or closes
fully.
R the side windows open again slightly after
being closed fully. X
Turn the key to position 2in the ignition
lock.
X Pull the corresponding switch until the side
window is closed.
X Hold the switch for an additional second.
If the side window opens again slightly:
X Pull the corresponding switch again imme-
diately and hold it for approx. one second. Convenience opening*
You can ventilate the vehicle before a journey.
To do this, you can use the key to simultane-
ously:
R open the side windows
R open the panorama louvred sliding sun-
roof* or move it to the ventilation position
i The "Convenience opening" feature can
only be operated using the key. Controls
* optional
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Driving sys
tems 126
A warning tone sounds. the multi-function
display shows the message: Park Assist
cancelled .
When active parking assist is cancelled, you
must steer again yourself.
Trailer towing* For vehicles with a trailer coupling, the mini-
mum length for parking spaces is slightly
increased.
If you have attached a trailer to your vehicle,
you should not use active parking assist.
Once the electrical connection is established
between your vehicle and the trailer, active
parking assist is no longer available. Park-
tronic is deactivated for the rear area. ECO start/stop function*
The ECO start/stop function automatically
switches off the engine as soon as you stop
the vehicle and restarts the engine as soon as
you prepare to pull away again. Each time the
engine is started using the key, the ECO
start/stop function is activated.
Conditions for the automatic engine
switch-off The ECO start/stop function automatically
switches off the engine if all of the following
conditions are met:
R
you have shifted to neutral
R the clutch pedal is not depressed
R the brake pedal is depressed
R the vehicle speed is very low
R the engine has reached its operating tem-
perature
R the indicator lamp in the ECO button is lit
green
R the bonnet is closed
R the outside temperature is within the com-
fort range R
the battery is sufficiently charged
R the brake vacuum is stable
Conditions for the automatic engine
start The ECO start/stop function automatically
switches on the engine if one of the following
conditions is met:
R
the brake pedal is released
R the clutch pedal is depressed
R the vehicle speed exceeds a certain thresh-
old
R the ECO button is pressed
R the brake vacuum has decreased
R the battery charge has dropped
R the demister function of Thermotronic* is
selected Controls
* optional
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