
Opening and closing
66 Opening and closing
Key
The vehicle's equipment includes two keys
with remote control. Each key contains an
emergency key element.
The key is configured at the factory to cen-
trally lock and unlock the following:
R the doors
R the boot lid
R the fuel filler flap G
Risk of accident
Never leave children unsupervised in the
vehicle. They could open a door from the
inside, even if it has been locked, or start
the vehicle if the key is left in it. They could
endanger themselves and others. You
should therefore take the key with you
when leaving the vehicle, even if you are
only leaving it for a short time.1 j Locking button
2 i Unlocking button for the boot lid
3 k Unlocking button
4 Battery check lamp
i The key can also be used to open and
close the sliding/tilting sunroof* and the
side windows. You can open them using the
summer opening feature (Y page 100). You
can close them using the convenience clos-
ing feature ( Y page 100). Factory settings
X
To unlock centrally: press the k but-
ton.
The turn signals flash once. The locking
knobs in the doors pop up. The anti-theft
alarm system* is deactivated.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer.
i If you do not open either a door or the
boot lid after you have unlocked the vehi-
cle, it will automatically relock after approx-
imately 40 seconds.
X To lock centrally: press the j button.
The turn signals flash three times if the
doors and boot lid are closed. The locking
knobs in the doors drop down. The anti-
theft alarm system* and the immobiliser
are primed.
Individual settings
You can change the setting of the locking
system in such a way that pressing the
k button only unlocks the driver's door
and the fuel filler flap. This is useful if you fre-
quently travel on your own.
Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 66

Opening and closing
67
X
To change the setting: press the k
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 the k but-
ton twice.
X To lock centrally: press the j button.
Restoring the factory settings X
Press the k and j buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice. KEYLESS GO*
If you are carrying the KEYLESS GO key on
your person, you can use the KEYLESS GO
functions of your vehicle. The KEYLESS GO
key should not be more than one metre away
from the vehicle. However, you can also use
the KEYLESS GO key like a normal key with
remote control.
When you pull the door handle, the following
unlock centrally if the factory settings have
not been changed:
R the doors
R the boot lid
R the fuel filler flap G
Risk of accident
Never leave children unsupervised in the
vehicle. They could open a door from the
inside at any time, even if it has been
locked. Or they could start the vehicle if a
valid KEYLESS GO key is in the vehicle and
they press the KEYLESS GO button on the
gear selector lever. They could endanger
themselves and others. Switch off the
engine and take the KEYLESS GO key with
you, even if you are only leaving the vehicle
for a short time. 1
j Locking button
2 i Unlocking button for the boot lid
3 k Unlocking button
4 Battery check lamp
i You can also use the KEYLESS GO key to
open and close the side windows and slid-
ing/tilting sunroof* . You can open them
using the summer opening feature
(Y page 100). You can close them using
the convenience closing feature
(Y page 100).
i If the vehicle has been parked for a long
time, you must pull the door handle to acti-
vate the KEYLESS GO functions. Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 67

Seats
80
3
Massage function
4 Upper back support
5 Lumbar region support
6 Seat cushion length
X To activate/deactivate: press button 1.
The indicator lamp in the button lights up/
goes out.
When switched on, the message Driving
dynamics seat adjustment appears in
the multi-function display for five seconds.
Massage function (PULSE) The massage function helps you to prevent
muscle tension on long journeys.
X
Press button 3.
The indicator lamp in the button lights up.
The air cushions in the lumbar region
vibrate for approximately five minutes. Seat ventilation*
The three blue indicator lamps in the button
indicate the ventilation level you have selec-
ted. 1
Seat ventilation
X Make sure that the key is in position 1 or
2 in the ignition lock.
X To switch on: press button 1 repeatedly
until the required ventilation level is set.
i If you open the side windows and the slid-
ing sunroof* using the key ( Y page 100),
the driver's seat ventilation automatically
switches to the highest level.
X To switch off: press button 1 repeatedly
until all the indicator lamps go out. i
If the battery voltage is too low, the seat
ventilation switches off temporarily. Seat heating*
The three red indicator lamps in the button
indicate the heating level you have selected. 1
Front-seat heating Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 80

Side windows
100
If a side window locks up again during closing
and has reopened again slightly:
X
Immediately after the window locks up, pull
the switch upwards until the window is fully
closed.
The side window is closed without the anti-
entrapment feature. Resetting the windows
Each side window must be reset if the battery
was disconnected or discharged.
X Make sure that the key is in position 2 in
the ignition lock.
X Pull the switch upwards until the window is
closed, and hold it in this position for
another second. Summer 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 sliding/tilting sunroof*
R Switch on the seat ventilation*
i The "Summer opening" feature can only
be operated via the key.X Point the tip of the key at the driver's door
handle.
X Unlock the vehicle by pressing the k
button.
X Keep the k button pressed until the
side windows and the sliding/tilting sun-
roof* are in the desired position.
Convenience closing
When you lock the vehicle, you can close the
side windows and the sliding/tilting sun-
roof* simultaneously.
G Risk of injury
Make sure nobody is trapped when using
the Convenience closing feature. Proceed
as follows if there is a risk of entrapment:
With the key:
R Release the j button.
R Press and hold the k button until the
side windows and the sliding/tilting sun-
roof* open again.
Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 100

Driving and parking
101With KEYLESS GO*
R
Release the locking button on the door
handle.
R Pull the door handle immediately and
hold it.
The side windows and the sliding/tilting
sunroof* open.
With the key X
Point the tip of the key at the driver's door
handle.
X Lock the vehicle with the j button.X
Keep the button pressed until the side win-
dows and the sliding/tilting sunroof* are
fully closed.
X Make sure that all the side windows and the
sliding/tilting sunroof* are closed.
With KEYLESS GO*: 1
Locking button on the door handle
X Keep locking button 1 on the door handle
pressed until the side windows and the slid-
ing/tilting sunroof* are fully closed.
X Make sure that all the side windows and the
sliding/tilting sunroof* are closed. Driving and parking
Starting the engine
G
Risk of accident
Do not keep any objects in the driver's foot-
well. If you use a floormat or carpet in the
driver's footwell, make sure that they are
correctly secured and that there is suffi-
cient clearance for the pedals.
Objects could otherwise get between the
pedals in the event of sudden braking or
acceleration. You may then no longer be
able to brake, change gear or accelerate as
intended. This may result in an accident and
injury. G
Risk of poisoning
Never leave the engine running in enclosed
spaces. The exhaust gases contain carbon
monoxide. Inhaling exhaust fumes consti-
tutes a health hazard and could lead to loss
of consciousness or even death.
! Do not depress the accelerator pedal
when starting the engine.
i If you depress the brake when starting the
engine, pedal travel will be unusually long
and there will be less pedal resistance. Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 101

Air conditioning
152 General notes
2-zone Thermatic controls the temperature of
the vehicle interior and filters out undesirable
substances from the air.
4-zone Thermotronic* controls the tempera-
ture and the humidity of the vehicle interior
and filters out undesirable substances from
the air.
2-zone Thermatic/4-zone Thermotronic* is
only operational when the engine is running.
Optimum operation is only achieved when
you drive with the side windows and sliding/
tilting sunroof* closed. i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the sum-
mer
opening feature (Y page 100). This will
speed up the cooling process and the
desired interior temperature will be
reached more quickly.
i The integrated filter filters out most par-
ticles of dust and completely filters out
pollen. A clogged filter reduces the amount
of air supplied to the vehicle interior. For
this reason, you should always observe the
interval for replacing the filter, which is specified in the Service Booklet. As it
depends
on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet. G
Risk of accident
Observe the settings recommended on the
following pages. The windows could other-
wise mist up. This may obstruct your view
of the traffic situation, thereby causing an
accident. Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 152

Air conditioning
165
X
To deactivate: press the , button.
The indicator lamp in the , button goes
out.
i Air-recirculation mode switches off auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5 †
R after
approximately five minutes if the air
dehumidification is deactivated
R after approximately 30 minutes at out-
side temperatures above approximately
5 †
Air-recirculation mode with the conve-
nience 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 window when it is 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 entrapment,
press the , button again. If necessary,
press
the switch that stops, opens or closes
the side window in the opposite direction.
Make sure that nobody can become trap-
ped when you are opening or closing the
sliding/tilting sunroof*. If there is a risk of
entrapment, press the , button again.
If necessary, press the switch to stop, open
or close the sliding/tilting sunroof* in the
opposite direction.
X Convenience closing: press and hold
the ,
button until the side windows and
the sliding/tilting sunroof* have closed.
The indicator lamp in the , button
comes on. Air-recirculation mode is activa-
ted.
X Convenience opening: press and hold
the ,
button until the side windows and
the sliding/tilting sunroof* have reached
their original position.
The indicator lamp in the , button goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the slid-
ing/tilting sunroof* manually after closing
using the convenience closing feature, it will remain in this position when opened
using the convenience opening feature. Switching the residual heat/auxiliary
ventilation on/off
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 Make sure that the key is in position 0 in
the ignition lock or that it has been
removed.
X To switch on: press the T button.
REST appears in the display.
X To deactivate: press the T button.
REST is no longer shown in the display. Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 165

Sliding sunroof
169The auxiliary ventilation
is switched on. The num-
ber in the remote control
display indicates the
remaining operating time
of the auxiliary ventila-
tion.
The auxiliary heating is
switched on. The number
in the remote control dis-
play indicates the
remaining operating time
of the auxiliary heating. Sliding sunroof
Sliding/tilting sunroof*
G
Risk of injury
Never leave children unsupervised in the
vehicle. They could operate the sliding/tilt-
ing sunroof and injure themselves. Always
take the key with you when leaving the
vehicle, even if you only leave it for a short
time. G
Risk of injury
Make sure that nobody can become trap-
ped when you are opening and closing the
sliding/tilting sunroof. If danger threatens,
release the switch and push it briefly in any
direction to stop the sliding/tilting sunroof. G
Risk of injury
The glass in the sliding/tilting 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 overturning. Therefore,
always wear a seat belt to reduce the risk
of injuries. !
Only open the sliding/tilting sunroof if it
is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding/tilting sunroof. The seals could oth-
erwise be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the slid-
ing/tilting sunroof is open. They are caused
by minor pressure fluctuations in the vehi-
cle interior.
Change the position of the sliding/tilting
sunroof or open a side window slightly to
reduce or eliminate these noises.
i It is also possible to open and close the
sliding/tilting sunroof from the outside
using the "Summer opening" ( Y page 100)
and "Convenience closing" ( Y page 100)
features respectively. Controls
* optional
219_AKB; 2; 4, en-GB
mkalafa,
2007-11-13T09:28:36+01:00 - Seite 169