
Warning and indicator lamps
Function Page
0043
ESP
® 193
0044
Seat belts 191
0087
Brakes (USA only)
004D
Brakes (Canada only) 0085
High-beam headlamps 98
0083
Low-beam headlamps 97
0084
Turn signal 98
006B
SRS 194
006C
Check Engine
006D
ABS
192 Function Page
006E
Engine oil temperature 150
006F
Tire pressure 197
0070
Electric parking brake (USA
only)
0024
Electric parking brake
(Canada only) 0071
Reserve fuel 196
0072
SPORT handling mode 56
0073
ESP
®
OFF 5528
Instrument clusterAt a glance

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

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

X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X Turn the mechanical key counter-clockwise
to position 0049.
The door is locked.
X Turn the mechanical key back and remove
it.
X Check that both doors are locked.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed.
Roadster X
Open the driver's door.
X Close the front-passenger door and the
trunk lid.
X Press the locking button (Y page 70).
X Check that the locking knob is in the lower
position on the front-passenger door. Press
the locking knob down by hand, if
necessary.
X Close the driver's door.
X Take the mechanical key out of the
SmartKey (Y page 64).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the mechanical key clockwise as far
as it will go to position 0047.
X Turn the mechanical key back and remove
it. X
Make sure that the doors and the trunk lid
are locked.
X Insert the mechanical key into the
SmartKey.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Trunk
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when 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
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 72
TrunkOpening and closing

Useful information
............................118
Notes on breaking-in a new vehicle 118
Driving ............................................... 118
AMG SPEEDSHIFT DCT 7-speed
sports transmission .........................121
AMG button (SETUP) .........................128
Refueling ............................................ 129
Parking ............................................... 131
Driving tips ........................................ 134
Driving systems ................................ 138 117Driving and parking

Activating RACE START
X
Depress the brake pedal with your left foot
and keep it depressed.
X Turn the drive program selector switch
clockwise (Y page 124) until the RS
indicator on the switch lights up in red.
The multifunction display shows the
message RACE START
RACE START Confirm: Paddle Confirm: Paddle
UP
UP Cancel: Paddle DOWN
Cancel: Paddle DOWN.
i If the conditions for activation are not
fulfilled, RACE START is canceled. The
RACE START Not Possible
RACE START Not Possible message
appears in the multifunction display.
X To cancel: pull the left-hand steering wheel
paddle shifter (DOWN) (Y page 125).
The multifunction display shows the RACE
RACE
START Canceled START Canceled message.
X To confirm: pull the right-hand steering
wheel paddle shifter (UP) ( Ypage 125).
The RACE START Available Depress
RACE START Available Depress
gas pedal
gas pedal message appears in the
multifunction display.
i If you do not depress the accelerator
pedal within a few seconds, RACE START is
canceled. The multifunction display shows
the RACE START Canceled
RACE START Canceled message.
X Fully depress the accelerator pedal.
The engine speed is increased.
The RACE START Release brake to
RACE START Release brake to
start start message appears in the
multifunction display.
i If you do not release the brake pedal
within a few seconds, RACE START is
canceled. The multifunction display shows
the RACE START Canceled
RACE START Canceled message.
X Take your foot off the brake pedal while
keeping the accelerator pedal fully
depressed.
The vehicle pulls away at maximum
acceleration.
The RACE
RACE START START Active
Active message appears
in the multifunction display.
RACE START is deactivated when the vehicle
reaches a speed of approximately 30 mph (50 km/h). Drive program
S+is activated.
SPORT handling mode remains switched on.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation
conditions are no longer fulfilled. The RACE
RACE
START Not Possible START Not Possible orRACE START
RACE START
Canceled
Canceled message appears in the
multifunction display.
i If RACE START is used repeatedly within
a short period of time, it is only available
again after the vehicle has been driven a
certain distance. Automatic drive program
Drive program Cis characterized by the
following:
R comfort-oriented engine and transmission
settings
R optimal fuel consumption resulting from
the transmission shifting up sooner
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example
R the transmission shifting up sooner; This
results in the vehicle being driven at lower
engine speeds and the wheels being less
likely to spin
Drive programs Sand S+are characterized
by the following:
R sporty engine and transmission settings
R the transmission shifting up later and
shifting down dynamically
R as a result of the later transmission
upshifts, the fuel consumption may be
higher
R if a period of dynamic driving is followed by
an extended phase with a constant
accelerator pedal position, the vehicle 126
AMG SPEEDSHIFT DCT 7-speed sports trans
missionDriving and parking