Problem
Possible causes/consequences and
0050
0050Solutions KEYLESS-GO is malfunctioning.
X Lock/unlock the vehicle using the remote control function of the
SmartKey.
X Have the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
X Unlock (Y page 73) or lock (Y page 73) the vehicle using the
mechanical key.
X Have the vehicle and SmartKey checked at a qualified specialist
workshop. The engine cannot be
started using the Smart-
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 255).
or
X Jump-start the vehicle (Y page 256).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The SmartKey battery is discharged or nearly discharged.
X Check the SmartKey battery (Y page 69) and replace it if necessary
(Y page 69).
If this does not work: X Start your vehicle with the SmartKey in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the SmartKey in the ignition lock. You have lost a Smart-
Key. 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. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
71Opening and closing Z
Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
When a door is opened, the side window on that
side opens slightly. When the door is closed, the side window closes again.
! 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. Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked. If the vehicle has been
locked with the SmartKey or with KEYLESS-GO,
opening a door from the inside will trigger the
anti-theft alarm system. Switch off the alarm
(Y page 64). X
Pull door handle 0044.
If the door is locked, locking knob 0043pops up.
The door is unlocked and opens. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock and unlock the vehicle
from the inside. The buttons are on the driver’s
door. X
To unlock: press button 0043.
X To lock: press button 0044.
If the front-passenger door is closed, the vehi-
cle locks.
Meanwhile, the fuel filler flap will not be locked
or unlocked.
You cannot unlock the vehicle centrally from the
inside if the vehicle has been locked with the
SmartKey or KEYLESS-GO.
The doors can be opened from the inside.
If the vehicle has been locked with the SmartKey
or with KEYLESS-GO, opening a door from the
inside will trigger the anti-theft alarm system.
Switch off the alarm (Y page 64).72
DoorsOpening and closing
tem will be triggered. Switch off the alarm
(Y page 64). Trunk
Important safety notes
G
DANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open while the engine is running,
especially if the vehicle is in motion. There is a risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open. G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
! The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
The opening dimensions of the trunk lid can be
found in the "Vehicle data" section
(Y page 293).
If the rear spoiler has been extended manually,
the height when opened is higher by this
amount. If in doubt, retract the rear spoiler again manually before opening the trunk lid
(Y page 229).
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
You should preferably place luggage or loads in the trunk. Observe the loading guidelines
(Y page 218). Opening/closing from outside
Opening X
Press the 0054button on the SmartKey.
The trunk lid opens slightly.
X Lift the trunk lid.
Closing X
Pull the trunk lid down using recess 0043and let
it drop into the lock.
X Lock the vehicle if necessary with the 0037
button on the SmartKey or with KEYLESS-GO
(Y page 67). Unlocking with KEYLESS-GO
Important safety notes G
WARNING
The vehicle exhaust system can become very
hot. If you use HANDS-FREE ACCESS, you
could burn yourself by touching the exhaust
system. There is a risk of injury. Always
ensure that you make the kicking movement
only within the detection range of the sensors. 74
TrunkOpening and closing
!
If the SmartKey is within the rear detection
range of KEYLESS-GO, the following situa-
tions, for example, could lead to the uninten-
tional opening of the trunk lid:
R when using an automatic car wash
R when using a power washer
Make sure that the SmartKey is at least 10 ft
(3 m) away from the vehicle.
General notes Vehicles with KEYLESS-GO without carbon
package: you can unlock the trunk lid without
using your hands. This is useful if you have your hands full. To do this, make a kicking movement
under the rear bumper with your foot.
Observe the following points:
R Carry your KEYLESS-GO key about your per-
son. The SmartKey must be at the rear of the
vehicle in the detection range of KEYLESS-
GO.
R When making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient clearance
to the rear of the vehicle. You could otherwise lose your balance, for example on ice. R
Always ensure that you only make the kicking
movement within the detection range of sen- sors 0043.
R Stand at least 12 in (30 cm) away from the
rear area while doing so.
R Do not come into contact with the bumper
while making the kicking movement. Other-
wise, the sensors may not function correctly.
R Unlocking the trunk via the sensor does not
function while the engine is being started.
R Dirt caused by road salt or snow around sen-
sors 0043may restrict functionality. Using the trunk unlocking function via the
sensor with a prosthetic leg may restrict func-
tionality.
R If a KEYLESS-GO SmartKey is within the rear
detection range of KEYLESS-GO, the sensors
could be triggered. As a result, the trunk lid
could be opened unintentionally under the
following conditions:
- if you set something down or lift something
behind the vehicle
- if you polish the rear of the vehicle
Do not carry the KEYLESS-GO key about your
person in these situations or in situations sim-
ilar to these. This will prevent the trunk lid
from being unlocked unintentionally.
Operation X
To unlock: kick into sensor detection
range 0043below the bumper with your foot.
The trunk lid opens slightly.
X To open: lift the trunk lid.
X If the trunk lid does not unlock after sev-
eral attempts:
wait at least ten seconds then
kick under the bumper once again.
If you hold your foot under the bumper for too
long, the trunk lid does not unlock. Repeat the
leg movement more quickly if this occurs. Unlocking from inside the vehicle
G
DANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open while the engine is running,
especially if the vehicle is in motion. There is a risk of poisoning. Trunk
75Opening and closing
Z
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open. You can unlock the trunk lid from the driver's
seat when the vehicle is stationary and
unlocked.
X Press remote operating switch 0043for the
trunk lid until the trunk lid is unlocked.
The trunk lid opens slightly. Locking the trunk lid separately
The "Locking the trunk lid separately" function is only available in certain countries.
You can lock the trunk lid separately. If you then
unlock the vehicle centrally, the trunk lid
remains locked and cannot be opened. X
To activate: close the trunk lid.
X Open the glove box.
X Slide the switch to position 0047.
If the vehicle is unlocked centrally, the trunk
lid remains locked.
i You can also lock the glove box
(Y page 219). X
To deactivate: open the glove box.
X Slide the switch to position 0048.
If the vehicle is unlocked centrally, the trunk
lid will also be unlocked. Trunk emergency release
You can unlock the trunk lid from the inside with
emergency release button 0043.
X Press emergency release button 0043briefly.
The trunk lid unlocks and opens.
X Push the trunk lid upwards to open it com-
pletely.
The trunk lid can be unlocked with emergency
release button 0043when the vehicle is stationary
or in motion.
Emergency release button 0043:
R flashes for 30 minutes after the trunk lid is
opened
R flashes for 60 minutes after the trunk lid is
closed
Emergency release button 0043does not unlock
the trunk lid if the battery is disconnected or
discharged.
If the vehicle was locked centrally, opening the
trunk lid with emergency release button 0043trig-
gers the anti-theft alarm system. Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
could become trapped between the side win- dow and the door frame as the side window
moves. There is a risk of injury. 76
Side windowsOpening and closing
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or pull the switch to close the side window again. G
WARNING
While closing the side windows, body parts in the closing area could become trapped. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again. G
WARNING
If children operate the side windows they
could become trapped, particularly if they are left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. Side window reversing feature
The side windows are equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts a side window from traveling
upwards during the automatic closing process,
the side window opens again automatically. Dur-
ing the manual closing process, the side window only opens again automatically after the corre-
sponding switch is released. The automatic
reversing feature is only an aid and does not
relieve you of the responsibility to pay attention
when closing a side window. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R while adjusting
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If someone becomes trapped, press the
0062
button to open the side window again. Opening and closing the side win-
dows
The switches for all side windows are located on
the driver's door. There is also a switch on the
front-passenger door for the corresponding side
window.
The switch on the driver's door has priority. 0043
Left
0044 Right
X Switch on the power supply or switch on the
ignition with the Start/Stop button.
X To open manually: press and hold the cor-
responding switch.
X To open fully: press the switch beyond the
point of resistance and release it.
Automatic operation is started.
X To close manually: pull the corresponding
switch and hold it.
X To close fully: pull the switch beyond the
point of resistance and release it.
Automatic operation is started.
X To interrupt automatic operation: press/
pull the corresponding switch again.
If you press the switch beyond the point of
resistance and release, automatic operation is
started in the corresponding direction. You can
stop automatic operation by pressing/pulling
the switch again.
You can still operate the side windows when you switch off the power supply or the ignition. This
function remains active for five minutes or until
you open a door. Side windows
77Opening and closing Z
If the side window opens again slightly:
X Immediately pull the corresponding switch on
the door control panel until the side window is completely closed (Y page 77).
X Hold the switch for an additional second.
X If the respective side window remains closed
after the button is released, then it has been
set correctly. If this is not the case, repeat the
steps above. Problems with the side windows
G
WARNING
If you close a side window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing feature is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, releasethe switch or push the switch again to reopen the side window. Problem
Possible causes/consequences and
0050 0050Solutions A side window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects.
X Close the side window. A side window cannot be
closed and you cannot
see the cause. If a side window is obstructed during closing and reopens again
slightly:
X Immediately after the window blocks, pull the corresponding switch
again until the side window has closed.
The side window is closed with increased force.
If a side window is obstructed again during closing and reopens again slightly:
X Immediately after the window blocks, pull the corresponding switch
again until the side window has closed.
The side window is closed without the automatic reversing feature. The side windows cannot
be opened or closed with
convenience opening. The SmartKey battery is discharged or nearly discharged.
X Check the SmartKey battery (Y page 69) and replace it if necessary
(Y page 69). If a side window will still not open or close due to a malfunction, consult a qualified specialist
workshop. Side windows
79Opening and closing Z
Soft top (Roadster)
Important safety notes
G
WARNING
If you do not fully open/close the soft top, the soft-top hydraulics depressurize after a short
time. This causes the soft top to lower unex-
pectedly and may cause you or others to be
trapped. There is a risk of injury.
Always open or close the soft top completely.
! Never sit on the soft top or store heavy
objects on it. You will otherwise damage the
vehicle soft top and soft-top covers.
! When opening and closing the soft top,
make sure that:
R there is sufficient clearance above it, as the
soft top swings upwards
R there are no objects on the soft top or the
soft-top covers to the side
R the fabric is not dirty, wet or frozen
R the outside temperature is above -10 †
You could otherwise damage the soft top as
well as other parts of the vehicle.
Take the height of the vehicle into account when
opening and closing the soft top (Y page 293).
Make sure that the soft top is dry and clean
before opening or closing it. Otherwise, water or
dirt could enter the vehicle interior or trunk.
You can open or close the soft top:
R when the vehicle is stationary or
R when you do not exceed a speed of 31 mph
(50 km/h) (Max. 37 mph (60 km/h), to avoid
interrupting the closing process while slightly exceeding this speed)
If there is a strong head wind, it may not be pos- sible to close the soft top fully. In order to close
the soft top fully, reduce your speed or stop the
vehicle in accordance with the traffic condi-
tions.
For safety reasons, Mercedes-Benz recom-
mends that you only open or close the soft top
when the vehicle is stationary.
If the soft top does not open or close fully, the
soft-top hydraulics are depressurized and the
soft top is lowered: R
after approximately 7 minutes when the igni-
tion is switched on
R after about
20 seconds if the ignition is switched off Opening/closing with the soft top
switch
Important safety notes G
WARNING
When opening or closing the soft top, there is a risk that parts of the body could become
trapped by moving parts such as the roof
mechanism, the trunk lid, or the side win-
dows. There is a risk of injury.
When opening or closing the roof, make sure
that no parts of the body are in the vicinity of
moving parts. Release the switch if somebody
becomes trapped. G
WARNING
If the vehicle speed exceeds 37 mph
(60 km/h), the soft top stops during the open- ing or closing procedure. This impairs your
view to the rear. There is a risk of an accident.
Reduce your speed to below 37 mph
(60 km/h) or stop the vehicle in accordance
with the traffic conditions. Press or pull the
soft-top switch again in order to open or close the soft top fully.
Opening and closing X
Select SmartKey position 0048with the Start/
Stop button (Y page 110).
X When the vehicle is stationary, depress the
brake pedal and keep it depressed. 80
Soft top (Roadster)Opening and closing