or close the sun protection cover manually
when the sliding sunroof is raised or closed.
You can continue to operate the sliding sun-
roof after switching off the engine or remov-
ing the key. This function remains active for
five minutes or until the driver's or front-
passenger door is opened.
Rain-closing feature When the key is in position
0in the ignition
lock or is removed, the sliding sunroof closes
automatically:
R if it starts to rain.
R at extreme outside temperatures.
R after six hours.
R if there is a malfunction in the power sup-
ply.
The rear of the sliding sunroof is then raised in order to ventilate the vehicle interior.
If the sliding sunroof is obstructed when
being closed by the rain-closing feature, it
opens again slightly. The rain-closing feature
is then deactivated.
The sliding sunroof does not close if:
R it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the wind-
screen being monitored by the rain sensor,
e.g. because the vehicle is under a bridge.
Resetting !
If the sliding sunroof still cannot be
opened or closed fully after resetting, con- tact a qualified specialist workshop.
Reset the sliding sunroof if it does not operate
smoothly.
X Turn the key to position 1or 2in the ignition
lock.
X Raise the sliding sunroof fully at the rear
(Y page 111).
X Keep the 3switch pressed for another
second. X
Make sure that the sliding sunroof can be
fully opened and closed again
(Y page 111).
X If this is not the case, repeat the steps
above again. Operating the panorama sliding sun-
roof
Opening and closing Overhead control panel
:
To raise
; To open
= To close/lower
The panorama sliding sunroof can only be
operated when the roller sunblind is open.
X Turn the key to position 1or 2in the ignition
lock (Y page 181).
X Press or pull the 3switch in the corre-
sponding direction.
If you press or pull the 3switch beyond
the point of resistance, automatic operation
is started in the corresponding direction. You can stop automatic operation by pressing or
pulling again.
If the panorama sliding sunroof is raised at
the rear, it automatically lowers slightly at
higher speeds. The noise level in the vehicle
interior is reduced as a result. At low speeds it
raises again automatically.
You can continue to operate the panorama
sliding sunroof after switching off the engine
or removing the key. This function remains 112
Sliding sunroofOpening and closing
active for five minutes or until you open a
front door.
The panorama sliding sunroof cannot be
opened if a roof carrier is fitted. In order to
allow ventilation of the vehicle interior, you
can raise the panorama sliding sunroof. If a
roof carrier approved by Mercedes-Benz
makes contact with the panorama sliding
sunroof, the sunroof will lower slightly but
remain raised at the rear.
Rain-closing feature when the engine is
switched off If the key is in position
0in the ignition lock or
if it is removed, the panorama sliding sunroof
closes automatically:
R if it starts to rain.
R at extreme outside temperatures.
R after six hours.
R if there is a malfunction in the power sup-
ply.
The panorama sliding sunroof remains raised
at the rear in order to allow ventilation of the vehicle interior.
If the panorama sliding sunroof is obstructed
when being closed by the rain-closing feature,
it opens again slightly. The rain-closing fea-
ture is then deactivated.
The panorama sliding sunroof does not close if:
R it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the wind-
screen being monitored by the rain sensor. If the vehicle, for example, is under a bridge
or in a carport, the field of the sensor may
be covered.
Rain-closing feature when driving The raised sliding sunroof automatically low-
ers at the rear when driving if it starts to rain.
The sliding sunroof is lowered depending on:
R the road speed and
R the intensity of the rain You can manually cancel the automatic clos-
ing procedure. Press or pull the
3switch
in any direction.
To raise the sliding sunroof again, press the
3 switch in direction :.
The "Rain-closing feature when driving" func-
tion is deactivated, until you:
R press or pull the 3switch in any direc-
tion or
R turn the key to another position in the igni-
tion lock (Y page 181). Operating the panorama sliding sun-
roof roller sunblinds
Important safety notes G
WARNING
When opening or closing the roller sunblind
parts of the body could be trapped between
the roller sunblind and the frame or sliding
sunroof. There is a risk of injury.
When opening or closing make sure that no
parts of the body are in the sweep of the roller sunblind.
If someone is trapped:
R release the switch immediately or
R during automatic operation, press the
switch briefly in any direction
The opening/closing process is stopped.
The roller sunblinds shield the vehicle interior from sunlight. The front roller sunblind can
only be opened and closed when the sliding
sunroof is closed.
Roller sunblinds reversing feature The roller sunblinds are equipped with an
automatic reversing feature. If a solid object
blocks or restricts the roller blind during the
closing process, the roller blind opens again
automatically. However, the automatic
reversing feature is only an aid, not a substi-
tute for your attention when closing the roller
sunblind. Sliding sunroof
113Opening and closing Z
G
WARNING
The reversing feature especially does not
react to soft, light and thin objects, such as
small fingers. This means that the reversing
feature cannot prevent someone being trap-
ped in these situations. There is a risk of
injury.
When closing make sure that no parts of the
body are in the sweep of the roller sunblind.
If someone is trapped:
R release the switch immediately or
R during automatic operation, press the
switch briefly in any direction
The closing process is stopped.
Opening and closing roller sunblinds Overhead control panel
:
To open
; To open
= To close
You can only close the roller sunblinds when
the panorama sliding sunroof is closed.
X Turn the key to position 1or 2in the ignition
lock (Y page 181).
X Press the 3switch in direction :.
Both roller sunblinds open, then the sliding
roof is raised.
X Pull the 3switch in direction ;.
The sunblinds open
X Pull the 3switch in direction =.
The roller sunblinds close when the pano-
rama sliding roof is closed. If you press or pull the
3switch beyond
the point of resistance, automatic operation
is started in the corresponding direction. You
can stop automatic operation by pressing or
pulling again. Resetting the panorama sliding sun-
roof or the front roller sunblind
Reset the panorama sliding sunroof or the
front roller sunblind if the panorama sliding
sunroof or the roller sunblinds does not move smoothly.
X Turn the key to position 1or 2in the ignition
lock (Y page 181).
X Pull the 3switch repeatedly to the point
of resistance in the direction of arrow :
until the panorama sliding sunroof is fully
closed.
X Keep the 3switch pulled for an addi-
tional second.
X Pull the 3switch in the direction of
arrow :repeatedly until the front roller
sunblind is closed.
X Keep the 3switch pulled for an addi-
tional second.
X Make sure that the panorama sliding sun-
roof (Y page 112) and the front roller sun-
blind (Y page 114) can be fully opened
again.
X If this is not the case, repeat the steps
above again. 114
Sliding sunroofOpening and closing
The seat belt should:
R fit snugly across your body
R be routed across the middle of your shoul-
der
R be routed across your hips in the pelvic
area
X Before starting off, adjust the rear-view mir-
ror and the exterior mirrors so that you
have a good view of the road and traffic
conditions (Y page 128).
X Vehicles with memory function: you can
store the seat, steering wheel, exterior mir-
ror and head-up display settings with the
memory function (Y page 131). Seats
Important safety notes
G
WARNING
If children adjust the seats, they could
become trapped, especially if they are unat-
tended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The seats can still be adjusted when there is
no key in the ignition lock. G
WARNING
When adjusting a seat, you or another vehicle occupant could become trapped by the guiderail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it.
Observe the safety notes on "Airbags"
(Y page 51) and "Children in the Vehicle"
(Y page 63). G
WARNING
If the driver's seat is not engaged, it can move unexpectedly while the vehicle is in motion. This could cause you to lose control of the
vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the engine.
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem. G
WARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off. G
WARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain Seats
119Seats, steering wheel and mirrors
Z
X
Release the rear seat backrest and fold it
slightly forwards (Y page 372).
X To remove: pull the head restraint up to
the stop.
X Press release catch :and pull the head
restraint out of the guides.
X To refit: insert the head restraint so that
the notches on the bar are on the left when
viewed in the direction of travel.
X Push the head restraint down until you hear
it engage in position.
X Fold back the rear seat backrest until it
engages. Adjusting the 4-way lumbar support
:
To raise the backrest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. Switching the seat heating on/off
Activating/deactivating G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or a limited ability to react to excessively high temperatures may be affected or they may
even suffer burn-like injuries. There is a risk of
injury.
Therefore, do not switch on the seat heating
repeatedly. The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches from level
3 to level 2after approximately eight
minutes.
The system automatically switches from level 2 to level 1after approximately ten minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Turn the key to position 1or 2in the ignition
lock (Y page 181).
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off.
i If drive program Eis selected, the power
of the seat heating is reduced.
R Manual transmission (Y page 192)
R Automatic transmission (Y page 197) Seats
123Seats, ste ering wheel and mirrors Z
Problems with the seat heating
Problem
Possible causes/consequences and
M
MSolutions The seat heating has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low because too many electrical con-
sumers are switched on.
X Switch off electrical consumers that you do not need, such as
the rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat heating can be
switched back on manually. Switching the seat ventilation on/off
Activating/deactivating The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
X Turn the key to position 1or 2in the ignition
lock (Y page 181).
X To switch on: press button:repeatedly
until the desired ventilation level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature (Y page 107). The seat
ventilation of the driver's seat automati-
cally switches to the highest level.
i When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation. 124
SeatsSeats, steering wheel and mirrors
Problems with the seat ventilation
Problem
Possible causes/consequences and
M
MSolutions The seat ventilation has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low because too many electrical con-
sumers are switched on.
X Switch off electrical consumers that you do not need, such as
the rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat ventilation can
be switched back on. Steering wheel
Important safety notes
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the
ignition lock. Adjusting the steering wheel man-
ually
:
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever :up completely.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. Steering wheel
125Seats, steering wheel and mirrors Z
Adjusting the steering wheel electri-
cally :
To adjust the steering wheel position
(fore-and-aft adjustment)
; To adjust the steering wheel height
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 126)
R Storing settings (Y page 131)
R Operating the on-board computer
(Y page 294). EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Press one of the memory function position
buttons. The adjustment process is stopped.
This function is only available on vehicles with
a memory function. G
WARNING
If children activate the EASY-ENTRY/EXIT fea- ture, they can become trapped, particularly
when unattended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. G
WARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
The EASY-ENTRY/EXIT feature makes getting in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature using Audio 20/
COMAND Online; see the separate Audio 20/ COMAND Online operating instructions.
Position of the steering wheel and the
driver's seat when the EASY-ENTRY/
EXIT feature is active The steering wheel tilts upwards and the driv-
er's seat moves backwards if you:
R remove the key from the ignition lock
R with KEYLESS-GO: open the driver's door;
KEYLESS-GO must be in position 1
R with the key: open the driver's door; the
key must be in position 0or 1in the ignition
lock (Y page 181)
R open the driver's door when the ignition is
switched off
i The steering wheel only tilts upwards if
the driving position is stored after the seat
or steering wheel has been adjusted
(Y page 131). 126
Steering wheelSeats
, steering wheel and mirrors