sensor MERCEDES-BENZ E-CLASS CABRIOLET 2012 Owner's Manual

Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel fille rflap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
X To change the setting: press and hold
down the %and& buttons on the
key simultaneously for approximately six
seconds until the battery chec klamp
flashes twice ( Ypage 79).
i If the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock the driver's door: press the
% button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner sur-
face of the front-passenger door handle.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press
and hold down the %and& buttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (Y page 79). Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key, use the emergency
key element.
If you use the emergenc
ykey element to
unlock and open the driver's door or the boot
lid, the anti-thef talarm system will be trig-
gered (Y page 71).
There are several ways to tur noff the alarm:
X To turn the alarm off with the key: press
the % or& button on the key.
or
X Insert the key into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
Removing the emergency key element :
Release catch
; Emergency key element
X Push release catch :in the direction of
the arrow and at the same time, remove
emergency key element ;from the key. 78
KeyOpening and closing

Problem Possible causes/consequences and
M Solutions
You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the key. the on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 330).
or
X Jump-start the vehicle (Y page 331).
or
X Consult a qualified specialist workshop. Only vehicles without a
DIRECT SELECT lever:
The engine cannot be
started using the key. The steering lock is mechanically blocked.
X
Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key cannot be detected as easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance. As
a result, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res- cuing people from outside the vehicle is diffi-
cult.
Deactivate the interior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside.
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open a door from inside the vehicle at any
time, even if it has been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake 82
DoorsOpening and closing

They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for a short time. Unlocking and opening the doors
from the inside
! The side windows will not open/close if
the battery is discharged or if the side win-
dows have iced up. It will then not be pos-
sible to close the door. Do not attempt to
force the door to close. You could other-
wise damage the door or the side window.
For all countries except the United King-
dom: you can open a door from inside the
vehicle even if it has been locked. If the vehi-
cle has previously been locked with the key
or with KEYLESS-GO, opening a door from the
inside will trigger the anti-theft alarm system.
Switch off the alarm (Y page 71).
United Kingdom only: if the vehicle has
been locked with the key or with KEYLESS-
GO, the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. Deactivate the
interior motion sensor (Y page 72) before you
lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside. The anti-theft
alarm system is triggered if the door is
opened from the inside. Switch off the alarm
(Y page 71). X
Pull door handle ;.
If the door is locked, locking knob :pops
up. The door is unlocked and can be
opened.
i When a door is opened, the side window
on that side opens slightly. When the door
is closed, the side window closes again. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. X
To unlock: press button :.
X To lock: press button ;.
If all the doors are closed, the vehicle locks.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the key or KEYLESS-GO.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
For all countries except the United King-
dom: you can open a door from inside the
vehicle even if it has been locked.
United Kingdom only: if the vehicle has
been locked with the key or with KEYLESS-
GO, the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. Deactivate the
interior motion sensor (Y page 72) before you
lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside. Doors
83Opening and closing Z

X
Pull the boot lid down using recess :.
X If necessary, lock the vehicle with
the & button on the key (Y page 77) or
with KEYLESS-GO (Y page 77).
i If a KEYLESS-GO key is detected in the
boot, the boot lid cannot be locked. It then
opens again. Opening automatically from outside
Important safety notes G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance. As
a result, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res-
cuing people from outside the vehicle is diffi-
cult.
Deactivate the interior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside. !
The boot lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the boot lid.
i Opening dimensions of the boot lid
(Y page 378).
To open You can unlock and open the boot lid simul-
taneously with the key.
X Press and hold the Fbutton on the key
until the boot lid opens. Opening automatically from inside
General notes i
Opening dimensions of the boot lid
(Y page 378).
To open X
To open: pull remote operating switch for
boot lid :until the boot lid opens.
You can open the boot lid from the driver's
seat when the vehicle is stationary and
unlocked. Locking the boot separately
The separate boot locking function is only
available in certain countries.
You can lock the boot separately. If you then
unlock the vehicle centrally, the boot remains
locked and cannot be opened. 86
BootOpening and closing

X
To open all side windows: press
switch :to the point of resistance.
X To open all side windows fully: press
switch :beyond the point of resistance.
X To close all side windows: pull
switch :.
Using the key G
WARNING
Make sure tha tnobody can become trapped
as you close the side windows.
Proceed as follows if there is a risk of entrap-
ment:
R Release the &button.
R Press and hold the %button until the
side windows open again.
You can use the key to open or close all side
windows simultaneously.
X Close the soft top (Y page 93).
X Open the boot separator (Y page 99).
X Vehicles without KEYLESS-GO: point the
tip of the key at the door handle on the
driver's door.
X Vehicles with KEYLESS-GO: the key must
be within 2mofthe vehicle.
X To open all side windows: press
the % button on the key until the side
windows are fully opened.
X To interrupt the opening procedure:
release the %button. X
To close all side windows: press the
& button on the key until the side win-
dows are fully closed.
X To interrupt the closing procedure:
release the &button.
Convenience closing with KEYLESS-GO G
WARNING
When using the convenience closing feature,
make sure that nobody can become trapped.
Proceed as follows if there is a risk of entrap-
ment:
R release the sensor surface on the door han-
dle.
R pull the door handle immediately and hold
it.
The side windows open.
With KEYLESS-GO you can close all side win-
dows simultaneously .The KEYLESS-GO key
must be outside the vehicle. All the doors
must be closed. X
Touch recessed sensor surface :on the
door handle until the side windows are fully
closed.
i Make sure you only touch recessed sen-
sor surface :.
X Make sure that all the side windows are
closed.
X To interrupt convenience closing:
release recessed sensor surface :on the
door handle. Side windows
89Opening and closing Z

Convenience opening (Coupé)
General notes You can ventilate the vehicle before you start
driving
.To do this, the key is used to carry out
the following functions simultaneously:
R unlock the vehicle
R open the side windows
R open the panorama sliding sunroof and the
roller sunblind
R switch on the seat ventilation for the driv-
er's seat
i The convenience opening feature can
only be operated using the key. The key
must be close to the driver's door handle.
Convenience opening feature X
Point the tip of the key at the driver's door
handle.
X Press and hold the %button until the
side windows and the panorama sunroof
are in the desired position.
If the roller sunblind of the panorama slid-
ing sunroof is closed, the roller sunblind is
opened first.
X Press and hold the %button again until
the panorama sliding sunroof is in the
desired position.
X To interrupt convenience opening:
release the %button. Convenience closing (Coupé)
Important safety notes G
WARNING
When using the convenience closing feature,
make sure that nobody can become trapped.
Proceed as follows if there is a risk of entrap-
ment: With the key:
R
release the &button.
R press and hold the %button until the
side windows and the panorama sliding
sunroof open again.
With KEYLESS-GO:
R release the sensor surface on the door han-
dle.
R pull the door handle immediately and hold
it.
The side windows and the panorama sliding
sunroof open.
When you lock the vehicle, you can simulta-
neously:
R close the side windows
R close the panorama sliding sunroof
On vehicles with a panorama sliding sunroof,
you can then close the roller sunblind.
Using the key The key must be close to the driver's door
handle.
X
Point the tip of the key at the driver's door
handle.
X Press and hold the &button until the
side windows and the panorama sliding
sunroof are fully closed.
X Make sure that all the side windows and the
panorama sliding sunroof are closed.
On vehicles with a panorama sliding sunroof:
X Press and hold the &button again until
the roller sunblind of the panorama sliding
sunroof closes.
X To interrupt convenience closing:
release the &button.
Using KEYLESS-GO The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed.90
Side windowsOpening and closing

X
Touch recessed sensor surface :on the
door handle until the side windows and the
panorama sliding sunroof are fully closed.
i Make sure you only touch recessed sen-
sor surface :.
X Make sure that all the side windows and the
panorama sliding sunroof are closed.
On vehicles with a panorama sliding sunroof:
X Touch recessed sensor surface :on the
door handle again until the roller sunblind
of the panorama sliding sunroof closes.
X To interrupt convenience closing:
release recessed sensor surface :on the
door handle. Resetting the side windows
If a side window can no longer be closed fully,
you must reset it.
X Close all doors.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed. (Y page 88)
X Hold the switch for an additional second. If the side window opens again slightly:
X
Immediately pull the corresponding switch
on the door control panel until the side win-
dow is completely closed (Y page 88).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly.
If this is not the case, repeat the steps
above again. Side windows
91Opening and closing Z

Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
a short time.
! Only open the panorama sliding sunroof
if it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window slightly to reduce or
eliminate these noises.
In the following section, the term "sliding sun-
roof" refers to the panorama sliding sunroof. Operating the panorama sliding sun-
roof
Opening and closing Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 3switch in the corre-
sponding direction. i
If you press the 3switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre-
sponding direction. You can stop automatic
operationb y pressing again.
Rain-closing feature If the key is in position
0in the ignition lock
or if it is removed, the panorama sliding sun-
roof 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 powe rsupply
The panorama sliding sunroo fremains raised
at the rear in order to allow ventilation of the
vehicle interior.
i If the panorama sliding sunroof is obstruc-
ted while being closed by the rain-closing
feature, it opens again slightly. The rain-
closing feature 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,
e.g. because the vehicle is under a bridge
or in a carport. Operating the roller sunblind for the
panorama sliding sunroof
Important safety notes G
WARNING
Make sure that nobody can become trapped
as you open or close the roller sunblind.
The roller sunblind shields the vehicle interior
from sunlight. The roller sunblind can only be
opened and closed when the panorama slid-
ing sunroof is closed. 104
Sliding sunroof (Coupé)Opening and closing

Automatic anti-dazzle mirrors
G
WARNING
If inciden tlight fro mheadlamps is prevented
from striking the sensor in the rear-view mir-
ror, for instance, by luggage piled too high in
the vehicle, the mirror's automatic anti-dazzle
function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
dazzle mode if the following conditions are
met simultaneously:
R the ignition is switched on and
R inciden tlight fro mheadlamps strikes the
sensor in the rear-view mirror.
If reverse gear is engaged, the mirrors do not
go into anti-dazzle mode. Parking position for the exterior mir-
ror on the front-passenger side
Setting and storing the parking position Using reverse gear
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
You can store this position. X
Make sure that the vehicle is stationary and
that the key is in position 2in the ignition
lock.
X Press button ;for the exterior mirror on
the front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button =to adjust the
exterior mirror to a position that allows you
to see the rear wheel and the kerb.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving posi-
tion.
Using the memory button
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
This setting can be stored using memory but-
ton M?.
X Make sure that the key is in position 2in
the ignition lock.
X With the exterior mirror on the front-
passenger side activated, use adjustment
button =to adjust the exterior mirror. In
the exterior mirror, the rear wheel and the
kerb should be visible.
X Press memory button M? and one of the
arrows on adjustment button =within
three seconds.
The parking position is stored if the exterior
mirror does not move.
X If the mirror moves out of position, repeat
the steps. Mirrors
119Seats, steering wheel and mirrors Z

R
combination switch (Y page 126)
R on-board compute r(Ypage 243)
Light switch Operation
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to Ã.
The exterior lighting (except the side lamps/
parking lamps) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0
Automatic headlamp mode G
WARNING
If the light switch is set to Ãand it is foggy,
snowing or there is poor visibility, the dipped-
beam headlamps will not come on automati- cally. This could endanger you and others. In
such situations turn the light switch to
L.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
à is the preferred light switch setting. The
light setting is automatically selected accord-
ing to the brightness of the ambient light
(exception :poor visibility due to weather con-
ditions such as fog, snow or spray):
R Key in position 1in the ignition lock: the
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light.
R With the engine running: if you have acti-
vated the daytime driving lights function via
the on-board computer, the daytime driving
lights or the dipped-beam headlamps and
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light. Exterior lighting
123Lights and windscreen wipers Z