key MERCEDES-BENZ B-CLASS HATCHBACK 2008 Service Manual

Air conditioning
139
X
Press the Ubutton.
The indicator lamp in the |button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Press one of the $or% temperature
buttons.
The indicator lamp in the |button goes
out. The air distribution is directed towards
the windscreen. The air conditioning
switches to manual mode.
or
X Turn thumbwheel 1clockwise or anti-
clockwise (Y page 133).
The indicator lamp in the |button goes
out. The air distribution is directed towards
the windscreen. The air conditioning
switches to manual mode. Demisting the windows
Windows misted up on the inside X
Activate the "cooling with air dehumidifica-
tion" function 19
.
X Activate the automatic air conditioning. 20
X If the windows continue to mist up, activate
the "demisting" function.
Windows misted up on the outside X
Activate the windscreen wipers.
X Turn the air distribution thumbwheel to the
Y ora symbol.
i You should only select this setting until
the windscreen is clear again. Switching the rear window heating
on/off
G
Risk of accident
Clear all windows of ice or snow before set-
ting off. Otherwise, impaired visibility could
endanger you and others.
i The rear window heating has a high cur-
rent draw. You should therefore switch it
off as soon as the window is clear, as it only
switches off automatically after several
minutes.
i If the battery voltage is too low, the rear
window heating may switch off.
X Turn the key to position 2in the ignition
lock.
X To activate, press the 121
/F 22
but-
ton.
The indicator lamp in the 1/Fbut-
ton lights up or goes out.
19 Vehicles with air conditioning*/Thermotronic*.
20 Vehicles with Thermotronic*.
21 Vehicles with an air-conditioning system*/Thermotronic*.
22 Vehicles with Heatmatic. Cont
rols
* optional
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Air conditioning
140 Activating/deactivating air-recircula-
tion mode
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated. G
Risk of accident
Only switch over to air-recirculation mode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus
impairing visibility and endangering your-
self and others. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
X Turn the key to position 2in the ignition
lock.
X To activate: press theÄbutton.
The indicator lamp in the Äbutton lights
up.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in the
Ä button is not lit. Outside air is added after about 30
minutes.
X To deactivate: press theÄbutton.
The indicator lamp in the Äbutton goes
out.
i Air-recirculation mode switches off auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
7 †
R after approximately 5 minutes if cooling
with air dehumidification 23
is switched
off
R after approximately 30 minutes at out-
side temperatures above approximately
7 †
Convenience opening/closing feature G
Risk of injury
Make sure that nobody can become trap-
ped between the side window and the door
frame as the side windows are opened and
closed. Do not place objects or lean against
the side windows when they are being opened or closed. You or the objects could
be drawn in or become trapped between
the side window and the door frame as the
window moves. If there is a risk of entrap-
ment, press the
Äbutton again. Press
the button for stopping, opening or closing
the side windows in the opposite direction
as appropriate.
Make sure that nobody can become trap-
ped as the panorama louvred sliding sun-
roof *is opened and closed. If there is a risk
of entrapment, press the Äbutton
again. Press the button for stopping, open-
ing or closing the panorama louvred sun-
roof* in the opposite direction as appropri-
ate.
X Convenience closing: press and hold
the Ä button until the side windows and
the panorama louvred sliding sunroof*
have closed.
The indicator lamp in the Äbutton lights
up. Air-recirculation mode is activated.
23 Vehicles with air conditioning*/Thermotronic*. Controls
* optional
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Roof
141
X
Convenience opening: press and hold the
Ä button until the side windows have
returned to the original position.
The indicator lamp in the Äbutton goes
out. Air-recirculation mode is deactivated.
The panorama louvred sliding sunroof*
moves to the ventilation position.
i If you open the side windows or the pan-
orama louvred sliding sunroof* manually
after closing with the convenience closing
feature, they will remain in this position
when opened using the convenience open-
ing feature. Switching the residual heat on/off
The "residual heat" function is only available
with Thermotronic*.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the set interior temperature.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the "residual heat" function
at high temperatures, only the ventilation will be activated. The blower runs at
medium speed.
X Turn the key to position 0in the ignition
lock or remove it.
X To activate: press theTbutton.
The indicator lamp in the Tbutton lights
up.
X To deactivate: press theTbutton.
The indicator lamp in the Tbutton goes
out.
i The residual heat automatically switches
off after around 30 minutes or if:
R the ignition is switched on
R the battery voltage drops Roof
Panorama roof*
G
Risk of injury
The glass in the panorama sunroof* could
break in an accident.
If you are not wearing a seat belt, there is
a risk that you could be thrown through the
opening in the event of the vehicle over-
turning. Therefore, always wear a seat belt
to reduce the risk of injuries. Panorama louvred sliding sunroof*
G
Risk of injury
Make sure that nobody can become trap-
ped when closing the panorama louvred
sliding sunroof. If danger threatens, release
the switch and press the switch again to
reopen the panorama louvred sliding sun-
roof. G
Risk of injury
Never leave children unsupervised in the
vehicle. Always remove the key from the
ignition lock, even if you are leaving the
vehicle only briefly. Controls
* optional
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Roof
142
!
Only open the panorama louvred sliding
sunroof if it is free of snow and ice. Other-
wise, malfunctions may occur.
Do not allow anything to protrude from the
panorama louvred sliding sunroof. The
seals could otherwise be damaged.
i You can also set the panorama louvred
sliding sunroof to the ventilation position
from the outside by using the "Convenience
opening" feature (Y page 84).
The switch is in the overhead control panel. 1
To open
2 To close
X Turn the key to position 2in the ignition
lock. Ventilation position To ventilate the vehicle, you can lift the rear
edge of the first pane on the panorama
louvred sliding sunroof.
X
Press the switch in the direction of
arrow 1and hold.
The panorama louvred sliding sunroof
stops in the ventilation position.
Opening X
Press the switch in the direction of
arrow 1and hold.
The panorama louvred sliding sunroof
stops in the ventilation position.
X Press the switch in the direction of
arrow 1again and hold until the desired
position has been reached.
Closing X
Press the switch in the direction of
arrow 2and hold until the desired position
has been reached or the panorama louvred
sliding sunroof is closed. Opening and closing the cover* Cover
1for the panorama louvred sliding
sunroof and the panorama roof shields the
vehicle interior from sunlight.
It is possible to open and close the cover by
hand regardless of the position of the pano-
rama louvred sliding sunroof. Controls
* optional
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Features
162
X
To open: slide cover 1forwards.
Ashtray 2opens.
X To remove the insert: pull the insert up
and out.
X To refit the insert: press the insert into the
holder until it clicks into place.
Ashtray in the rear compartment 1
Ashtray
X To open: pull ashtray 1out by its top
edge.
X To remove the insert: pull the insert up
and out beyond the stop.
X To refit the insert: press the insert into the
holder until it clicks into place. Cigarette lighter*
G
Risk of injury and fire
Only hold the hot cigarette lighter by its
knob. Otherwise, you might burn yourself.
Make sure that children travelling in the
vehicle are not able to injure themselves on
the hot cigarette lighter or cause a fire with
it. 1
Cover
2 Cigarette lighter X
Make sure that the key is in position 2in
the ignition lock.
X Slide cover 1forwards.
X Press in cigarette lighter 2.
Cigarette lighter 2will pop out automati-
cally when the heating element is red-hot. 12 V socket
The socket can be used for accessories with
a maximum power consumption of 180 watts.
Socket in the cockpit A socket is fitted in the centre console on
vehicles with the non-smoker's package.
1
Socket Cont
rols
* optional
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Features
164 relating to the possible health risk posed by
electromagnetic fields.
To ensure optimum reception quality for
mobile phones in the vehicle, and to minimise
mutual influences between the vehicle elec-
tronics and mobile phones, Mercedes-Benz
recommends the use of an approved exterior
aerial. An exterior aerial conducts the elec-
tromagnetic fields generated by a wireless
device to the exterior of the vehicle; the field
strength within the vehicle interior is lower
than in a vehicle that does not have an exte-
rior aerial.
i There are various mobile phone brackets
that may be fitted to your vehicle; in some
cases, these are country-specific. You can
obtain these mobile phone brackets from a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
The functions and services available when
you use the phone depend on your mobile
phone model and service provider.
Inserting the mobile phone
X Open the telephone compartment
(Y page 159).
X Place the mobile phone bracket into the
pre-installed fitting; see the separate mobile phone bracket installation instruc-
tions.
X Insert the mobile phone into the mobile
phone bracket; see the separate mobile
phone bracket installation instructions.
If the mobile phone is inserted in the mobile
phone bracket, you can speak to the person
you are calling using the hands-free system.
You can operate the telephone using the
s andt buttons on the multi-function
steering wheel. You can operate other mobile
phone functions via the on-board computer
(Y page 112).
When you take the key out of the ignition lock,
the mobile phone stays on but you can no
longer use the hands-free system.
If you are making a call and you would like to
take the key out of the ignition lock, first
remove the mobile phone from the bracket.
Otherwise, the call will be terminated. Floormat on the driver's side
G
Risk of accident
Make sure that there is sufficient clearance
around the pedals when floormats are
used, and that the floormats are properly
secured.
The floormats must be secured at all times
using retainers and studs.
Before you drive off, make sure that the
floormats are secure and rectify if neces-
sary. A floormat which is not properly
secured can slip and thereby interfere with
the movement of the pedals.
Do not place floormats on top of one
another. Cont
rols
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Refuelling
168 Running-in notes
The first 1,500 km
If you treat the engine with sufficient care
from the very start, you will be rewarded with
excellent performance for the remainder of
the engine's life.
R You should therefore drive at varying road
and engine speeds for the first 1,500 km.
R Avoid heavy loads, e.g. driving at full throt-
tle, during this time. Do not exceed 2
/ 3 of
the maximum permissible engine speed for
each gear.
R Change gear in good time.
R Do not shift down a gear manually in order
to brake.
Vehicles with AUTOTRONIC*:
R Try to avoid depressing the accelerator
pedal beyond the pressure point (kick-
down).
R Only use ranges 3,2or 1for slow driving,
e.g. in mountainous terrain.
After 1,500 km you may gradually bring the
vehicle up to full road and engine speeds. Refuelling
Refuelling
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine before refuelling. G
Risk of injury
Avoid any contact with fuels.
You can damage your health if your skin
comes into direct contact with fuel or if you
inhale fuel vapours. G
Risk of fire
Do not use petrol to refuel vehicles with a
diesel engine. Never mix diesel with petrol.
This causes damage to the fuel system and
engine and could result in the vehicle catch-
ing fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even a small
quantity of the wrong fuel will damage the
injection system. Damage resulting from
adding the wrong fuel is not covered by the
warranty. !
Do not start the engine if you accidentally
refuel with the wrong fuel. Otherwise, the
fuel could enter the fuel lines. This would
require draining of the fuel tank and fuel
lines. Notify a qualified specialist workshop
and have the fuel tank and fuel lines
drained completely.
When you open or close the vehicle with the
key, the fuel filler flap is automatically
unlocked or locked.
The position of the fuel filler cap is to the rear
on the right. The fuel tank filler flap is shown
in the instrument cluster 4. The arrow on
the filling pump indicates the side of the vehi-
cle. 1
To open the fuel filler flap
2 To insert the fuel cap Operation
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Engine compartment
171Engine compartment
Bonnet
G
Risk of accident
Do not pull the release lever while the vehi-
cle is in motion. If you do so, the bonnet
may open up and block your view.
Opening G
Risk of injury
There is a risk of injury if the bonnet is open,
even if the engine is not running.
Some engine components can become
very hot.
To avoid the risk of burns, only touch those
components described in the Owner’s Man-
ual and observe the relevant safety notes. G
Risk of injury
The radiator fan between the radiator and
the engine can start automatically, even if
the key has been removed from the ignition
lock. For this reason, you must not reach
into the fan rotation area. Otherwise, you
could be injured. Vehicles with a petrol engine:
The electronic ignition system uses high
voltage. For this reason, you must never
touch components of the ignition system
(ignition coil, ignition cable, spark plug con-
nector or test socket) when:
R
the engine is running.
R the engine is being started.
R the ignition is switched on and the engine
is being cranked by hand.
Vehicles with a diesel engine:
The electronic injection control uses high
voltage. Therefore, never touch fuel injec-
tion system components when:
R the engine is running.
R the engine is being started.
R the ignition is switched on.
X Make sure that the windscreen wipers are
switched off. G
Risk of injury
The windscreen wipers and wiper linkage
could be set in motion.
When the bonnet is open, you or others
could be injured by the wiper rods. Make sure that the windscreen wipers are
switched off and that the key has been
pulled out of the ignition lock before open-
ing the bonnet.
The bonnet release lever is located in the
driver's footwell. 1
Bonnet release lever
X Pull bonnet release lever 1.
The bonnet is released.
! Make sure that the windscreen wipers
are not folded away from the windscreen.
Otherwise, you could damage the wind-
screen wipers or the bonnet. Operation
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Engine compartment
173
operating temperature (i.e. if you only star-
ted the engine briefly)
Using the on-board computer*
i Only possible on vehicles with a diesel
engine. A dipstick is used to check petrol
engines (Y page 174).
X Make sure that the key is in position
2(Y page 62) in the ignition lock.
X Press the jork button to select the
following message: The measurement takes a few seconds. You
will see one of the following messages in the
display: R
Engine oil level OK
R Add 1.0 litre to reach maximum oil
level
R Add 1.5 litres to reach maximum oil
level
R Add 2.0 litres to reach maximum oil
level
X Top up the oil if necessary ( Ypage 174).
Other messages in the multi-function dis-
play
If the engine is at normal operating tempera-
ture and there is too much oil, you will see the
following message:
Eng. oil level
Reduce oil level
X Have excess oil siphoned off.
! There is a risk of damage to the engine or
the catalytic converter if there is excess oil
in the engine.
If the Switch ignition on to check
engine oil level message appears:
X Turn the key to position 2(Y page 62) in
the ignition lock.
You will see the following message if you did
not observe the required waiting period: Observe waiting period
X
Repeat the measurement after about five
minutes if the engine is at normal operating
temperature.
X Repeat the measurement after about
30 minutes if the engine is not at normal
operating temperature (if the engine was
only started briefly).
The following message appears if the engine
is running:
Engine oil level Not when engine on
X Switch off the engine and wait for five
minutes if the engine is at normal operating
temperature, or for about 30 minutes if the
engine is not at normal operating temper-
ature (if the engine was only started
briefly), before measuring.
i If you wish to cancel the measurement,
press the korj button on the multi-
function steering wheel. Operation
* optional
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Tyres and wheels
180 fully. Do not make any sudden steering
movements when doing so.
The function of the tyre pressure loss warning
system is limited or delayed if:
R snow chains are fitted to your vehicle's
tyres.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration).
R you are towing a very heavy or large trailer.
R you are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tyre pressure loss warn-
ing system Restart the tyre pressure loss warning system
if you have:
R changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
X Before restarting, consult the table of tyre
pressures on the inside of the fuel filler flap
to ensure that the tyre pressure in all four tyres is set correctly for the operating con-
ditions concerned.
X Also observe the notes in the section on
tyre pressures (Y page 178). G
Risk of accident
The tyre pressure loss warning system can
only give reliable warnings if you have set
the correct tyre pressure.
If an incorrect tyre pressure is set, these
incorrect values will be monitored.
A tyre with insufficient pressure results in
vehicle instability when driving, thus
increasing the risk of an accident.
X Make sure that the key is in position
2(Y page 62) in the ignition lock.
You will see the following message on the
standard screen of the multi-function dis-
play (Y page 99)
X Press korj to select the tyre pres-
sure function:
Run Flat Indicator active
Menu: R-Button
X Press the reset button on the left of the
instrument cluster.
The following message appears in the
multi-function display: Restart Run Flat Indicat.? Yes Can-
cel
If you wish to confirm the restart:
X Press the æbutton.
The following message appears in the
multi-function display:
Run Flat Indicator restarted
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
If you wish to cancel the restart:
X Press the çbutton.
or
X Wait until the message
Restart Run Flat Indicator?
Yes Cancel disappears.
The tyre pressure values stored at the last
restart will continue to be monitored. Operation
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