or
X
Insert the SmartKey into the ignition lock.
The alarm is switched off.
i If the alarm stays on for more than
30 seconds, the mbrace emergency call
system (USA only) or Tele Aid system
(Canada only) initiates a call to the
Customer Assistance Center
automatically. The mbrace emergency call
system initiates the call if:
R you have subscribed to the Tele Aid
service.
R the Tele Aid service has been activated
properly.
R the required mobile phone, power supply
and GPS are available. Tow-away alarm
Function An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
the tow-away alarm is armed. This can occur
if the vehicle is jacked up on one side, for
example.
Arming X
Make sure that:
R
the doors are closed.
R the trunk lid is closed.
Only then is the tow-away alarm armed.
X Lock the vehicle with the SmartKey.
The tow-away alarm is armed after
approximately 30 seconds.
Deactivating X
Unlock the vehicle with the SmartKey.
The tow-away alarm is deactivated
automatically. Disarming
X
Select key position 0with the Start/Stop
button.
or
X Remove the SmartKey from the ignition
lock.
X Press button 0043.
Indicator lamp 0044lights up briefly.
X Lock the vehicle with the SmartKey.
The tow-away alarm is disarmed.
The tow-away alarm remains deactivated
until the vehicle is unlocked and locked again.
To prevent a false alarm, disarm the tow-away
alarm manually if your vehicle:
R is being transported
R is being loaded onto a ferry or car
transporter, for example
R is parked on a movable surface, e.g. in a
split-level garage Theft deterrent locking system
59Safety Z
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 22).SmartKey
Key function
General notes i
USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation of the device. Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
Locking/unlocking centrally The SmartKey centrally locks/unlocks:
R
the doors
R the trunk lid
R the fuel filler flap
R Roadster only: the glove box
R Roadster only: the stowage compartment
under the armrest 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. 62
SmartKeyOpening and closing
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
If you attach heavy or large objects to the
SmartKey, the SmartKey could be
unintentionally turned in the ignition lock. This
could cause the engine to be switched off.
There is a risk of an accident.
Do not attach any heavy or large objects to
the SmartKey. Remove any bulky key rings
before inserting the SmartKey into the
ignition lock.
! Keep the SmartKey away from strong
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity of powerful electrical installations. 0043
0037 To lock the vehicle
0044 0054 To unlock the trunk lid
0087 0036 To unlock the vehicle
The turn signals flash once when unlocking
and three times when locking.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 159).
X To unlock centrally: press the0036
button.
If you do not open the vehicle within
approximately 40 seconds of unlocking:
R the vehicle is locked again.
R the anti-theft alarm system is armed again.
X To lock centrally: press the0037button. Changing the settings of the locking
system
You can change the setting of the locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
X To change the setting: press and hold
down the 0036and0037 buttons
simultaneously for approximately six
seconds until the battery check lamp
(Y page 65) flashes twice . SmartKey
63Opening and closing Z
The SmartKey now functions as follows:
X
To unlock the driver's door: press the
0036 button once.
X To unlock centrally: press the0036
button twice.
X To lock centrally: press the0037button. Restoring the factory settings
X Press the 0036and0037 buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (Y page 58).
There are several ways to turn off the alarm:
X Press the 0036or0037 button on the
SmartKey.
or
X Insert the SmartKey into the ignition lock.
X To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key X
Push release catch 0043in the direction of
the arrow and at the same time remove
mechanical key 0044from the SmartKey. SmartKey battery
Important safety notes G
WARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. H
Environmental note Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment. Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified
specialist workshop or a
special collection point for
used batteries.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop. 64
SmartKeyOpening and closing
Problems with the SmartKey
Problem Possible causes/consequences and
0050
0050Solutions You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Point the tip of the SmartKey at the driver's door handle from
close range. Try to unlock or lock the vehicle again.
If this does not work:
X Unlock the vehicle using the mechanical key (Y page 64).
X Check the SmartKey battery and replace it if necessary
(Y page 65). The SmartKey is faulty.
X
Lock or unlock the vehicle using the mechanical key
(Y page 64).
X Have the SmartKey checked at a qualified specialist workshop. You have lost a
SmartKey. X
Have the SmartKey canceled at an authorized Mercedes-Benz
Center.
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. 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. 66
SmartKeyOpening and closing
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. 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
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,
particularly in the event of sudden braking or
a sudden 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. Unlocking and opening the doors
from the outside
Coupe !
The doors swing upwards and out when
opened. Therefore, make sure that there is
sufficient clearance above the vehicle. 68
DoorsOpening and closing
X
To open the door: point the SmartKey
towards door handle 0043.
X Press the 0036button on the SmartKey.
Door handle 0043moves out.
X Lift the door by door handle 0043and swing
it up as far as it will go.
X To close the door: pull the door
downwards by the outer edge or the interior
door handle. Swing the door down gently
and allow it to engage in the lower position.
X Lock the vehicle with the SmartKey if
necessary (Y page 62).
Roadster X
To open the door: point the SmartKey
towards door handle.
X Press the 0036button on the SmartKey.
The door is unlocked and can be opened.
X Pull the door handle. Unlocking and opening doors from
the inside
Coupe You can only open a door from the inside if it
is unlocked.
The vehicle locks the doors automatically if
you drive faster than 9 mph (15 km/h).
The doors are automatically unlocked after a
journey if you switch off the engine.
! The doors swing upwards and out when
opened. Therefore, make sure that there is
sufficient clearance above the vehicle. X
To unlock the door manually: press
the 0036 button of central locking 0087.
or
X Pull locking knob 0043upwards.
X To open the door: pull handle0044.
X Swing the door upwards as far as it will go.
X To close the door: pull the door down by
handle 0085.
X Allow the door to engage in the lower
position.
X To lock the door manually: press
the 0037 button of central locking 0087.
or
X Push locking knob 0043downwards.
Roadster You can open a door from inside the vehicle
even if it has been locked.
Only open the door when the traffic situation
permits. Doors
69Opening and closing Z
X
Pull door handle 0044.
If the door is locked, locking knob 0043pops
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.
! 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. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. This feature may be useful if,
for example, you wish to unlock the front-
passenger door from the inside or lock the
vehicle before you pull away.
Coupe: the central locking/unlocking button
does not lock or unlock the fuel filler flap.
Roadster: the central locking/unlocking
button does not lock or unlock the fuel filler
flap or the stowage compartments, such as
the glove box. X
To lock: press button 0044.
If both doors are closed, the vehicle locks.
X To unlock: press button 0043. You can open a door from inside the vehicle
even if it has been locked. Only open the door
when the traffic situation permits.
If the vehicle has been locked with the central
locking button:
R
and the SmartKey is set to its factory
setting, the entire vehicle is unlocked if a
door is opened from the inside.
R and the SmartKey is set to an individual
setting, only the door that is opened from
inside the vehicle is unlocked. Automatic locking feature
Coupe You can only open a door from the inside if it
is unlocked.
The vehicle locks the doors automatically if
you drive faster than 9 mph (15 km/h).
The doors are automatically unlocked after a
journey if you switch off the engine.
Roadster
The vehicle is locked automatically when the
ignition is switched on and the vehicle's
wheels are moving at a speed in excess of
9 mph
(15 km/h). There is therefore a risk of
being locked out when the vehicle is being
pushed, towed or tested on a dynamometer. X
To deactivate: press and hold button 0043
for about five seconds until a tone sounds.
X To activate: press and hold button 0044for
about five seconds until a tone sounds. 70
DoorsOpening and closing