2013 MERCEDES-BENZ E-Class CABRIOLET key battery

:
Battery compartment cover
; Mechanical key
X Press mechanical key ; into the opening
in the SmartKey in the direction of the
arrow until battery compartment cover :
opens. Do not hold battery compartment
cover : closed while doing so.
X Remove battery compartment cover :.=
Battery
X Repeatedly tap the SmartKey against your
palm until battery = falls out.
X Insert the new battery with the positive
terminal facing upwards. Use a lint-free
cloth to do so.
X Make sure that the surface of the battery is
free
from lint, grease and all other forms of
contamination. X
Insert the front tabs of battery
compartment cover : into the housing
first and then press to close it.
X Insert mechanical key ; into the
SmartKey (Y page 74).
X Check the function of all SmartKey buttons
on the vehicle.76
SmartKey
Opening/closing

Problems with the SmartKey
Problem Possible causes/consequences and
M SolutionsYou cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the % or
& button.
If this does not work:
X Check the SmartKey battery (Y page 75) and replace it if
necessary ( Y page 75).
X Lock ( Y page 80) or unlock ( Y page 81) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Lock ( Y page 80) or unlock ( Y page 81) the vehicle using
the mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for a long time.
X
Pull the door handle and then turn the SmartKey to position 2
in the ignition lock. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle using the remote control function of
the
SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the % or & button.There is a malfunction with KEYLESS-GO.
X
Lock/unlock the vehicle using the remote control function of
the

SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the % or & button.
X Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the SmartKey battery (Y page 75) and replace it if
necessary ( Y page 75).
X Lock ( Y page 80) or unlock ( Y page 81) the vehicle using
the mechanical key. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
77
Opening/closing Z

Problem Possible causes/consequences and
M SolutionsYou have lost the
mechanical key. 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
SmartKey. 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 312).
or
X Jump-start the vehicle (Y page 313).
or
X Consult a qualified specialist workshop. Vehicles without
DIRECT SELECT lever
only:
The engine cannot be
started using the
SmartKey. The steering lock is mechanically blocked.
X
Remove the SmartKey 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 SmartKey is in
the vehicle. A door is open. Therefore, the SmartKey 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 SmartKey in the ignition lock.78
SmartKey
Opening/closing

Doors
Important safety notes
G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint
system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger
compartment or trunk unless they
are firmly secured in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side
windows have iced up. It will then not be
possible to close the door. Do not attempt
to force the door closed. You could
otherwise damage the door or the side
window.
You can open a door from inside the vehicle
even if it has been locked. 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. Doors
79
Opening/closing Z

1
Neutral position.
2 To unlock
X Turn the mechanical key counter-clockwise
from position 1 as far as it will go to
position 2. Simultaneously pull the trunk
lid handle.
The trunk is unlocked.
X Turn the mechanical key back to position
1 and remove it.
X Insert the mechanical key into the
SmartKey. Trunk emergency release
You can open the trunk lid from inside the
vehicle with the emergency release button. X
Press emergency release button : briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving. The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged.
Trunk lid emergency release light:
R
emergency release button : flashes for
30 minutes after the trunk lid is opened
R emergency release button : flashes for
60 minutes after the trunk lid is closed Side windows
Important safety notes
G
WARNING
When opening or closing the door windows,
make sure that there is no danger of anyone
being harmed by the opening/closing
procedure.
The front door windows are equipped with
automatic

operation and the anti-entrapment
feature. If in automatic mode a front door
window encounters an obstruction that
blocks its path, the anti-entrapment feature
will stop the door window and open it slightly.
The door windows operate differently when
the switch is pulled. See the "Problems with
door windows" section for details.
The closing of the front door windows can be
immediately halted by releasing the switch or,
if the switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The closing of the rear side windows can be
immediately halted by releasing the switch.
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the door window
opening. G
WARNING
Do not keep any part of your body up against
the
window pane when opening a window. The
downward motion of the pane may pull that
part of your body down between the window 84
Side windows
Opening/closing

The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3 to level 2 after approximately
eight minutes.
The system automatically switches down
from
level 2 to level 1 after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
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.
Problems with the seat heating The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting. Switching the seat ventilation on/off
Activating/deactivating The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
X
Make sure that the SmartKey is in position
2 in the ignition lock.
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 Coupe: you can open the side windows
and the panorama roof with power tilt/
sliding panel using the "Convenience
opening" feature ( Y page 86). The seat
ventilation of the driver's seat
automatically

switches to the highest level.
Cabriolet: you can open the soft top and the
rear side windows with the SmartKey
(Y page 91). The seat ventilation of the
driver's seat automatically switches to the
highest level.
Problems with the seat ventilation The seat ventilation has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting. AIRSCARF (Cabriolet)
G
WARNING
Very hot air can flow out of the AIRSCARF
vents in the head restraints when AIRSCARF
is in operation. This can cause burns on
unprotected skin near the AIRSCARF vents.
Make

sure that you reduce the heater output
in time. 112
Seats
Seats, steering wheel and mirrors

The AIRSCARF function warms the head and
neck
area of vehicle occupants with warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button
indicate the heating level you have selected.
X Make sure that the SmartKey is in
position 2 in the ignition lock.
X To switch on: press the : button.
Three
red indicator lamps in the button light
up. The blower starts up after a preheating
phase of seven seconds.
X Press button : repeatedly until the
desired heating level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
You can use the adjustable fins on the head
restraint
to adjust the height of the current of
air blown out according to your height.
Make sure that there are no objects covering
the intake grille on the back of the driver's
seat backrest.
i The blower continues running for seven
seconds to cool down the heating
elements.
i If the battery voltage is too low, the
AIRSCARF may switch off. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child's unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. Adjusting the steering wheel
:
To adjust the steering wheel height
; To adjust the steering wheel position
(fore-and-aft adjustment)
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 114)
R Storing settings

(Y page 117) Steering wheel
113
Seats, steering wheel and mirrors Z

i
If you are driving faster than 9 mph
(15 km/h
) you can no longer fold in the
exterior mirrors.
Setting the exterior mirrors This function is only available in vehicles for
Canada.
If the battery has been disconnected or
completely discharged, the exterior mirrors
must be reset. The exterior mirrors will
otherwise

not fold in when you select the Fold
in mirrors when locking function in the on-
board computer ( Y page 227).
X Make sure that the SmartKey is in
position 1 in the ignition lock.
X Briefly press button :.
Folding the exterior mirrors in or out
automatically This function is only available in vehicles for
Canada.
If

the "Fold in mirrors when locking" function
is activated in the on-board computer
(Y page 227):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the
outside.
R the exterior mirrors fold out again
automatically as soon as you unlock the
vehicle and then open the driver's or front-
passenger door.
i If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror out of position If an exterior mirror has been pushed out of
position, proceed as follows:
X
Vehicles without electrically folding
exterior

mirrors: move the exterior mirror
into the correct position manually.
X Vehicles with electrically folding
exterior

mirrors (only for Canada): press
and hold mirror-folding button : until youhear a click and then the mirrors engage in
position (Y page 115).
The mirror housing is engaged again and
you

can adjust the exterior mirrors as usual
(Y page 115). Automatic anti-glare mirrors
G
WARNING
If incident light from headlamps is prevented
from striking the sensor in the rear-view
mirror,

for instance, by luggage piled too high
in the vehicle, the mirror's automatic anti-
glare 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-
glare mode if the following conditions are met
simultaneously:
R the ignition is switched on and
R incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged. Parking position for the exterior
mirror on the front-passenger side
Setting

and storing the parking position Using reverse gear116
Mirrors
Seats, steering wheel and mirrors