2014 MERCEDES-BENZ SLS AMG GT ROADSTER start stop button

!
Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature. The
operating temperature has been reached
when the engine oil temperature display in
the on-board computer's AMG menu no
longer flashes.
Only shift into reverse gear when the
vehicle is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
! During a cold start with low engine oil
temperatures (below 32 ‡) (0 †), the
maximum engine speed is restricted in
order to protect the engine. To protect the
engine and maintain smooth engine
operation, avoid driving at full throttle when
the engine is cold. Key positions
KEYLESS-GO start function You can switch the engine on and off with the
Start/Stop button. For this, the SmartKey
must be inside the vehicle. The Start/Stop
button is located in the center console and is
illuminated when the vehicle is unlocked.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts
immediately.
If there is a SmartKey in the ignition lock, this
takes precedence over the KEYLESS-GO start
function. X
Position 0: if Start/Stop button 0043has not
yet been pressed, this corresponds to the
SmartKey being removed from the ignition.
X Position 1: press Start/Stop button 0043.
You can now activate the windshield
wipers, for example.
If you press Start/Stop button 0043twice when
in this position and the driver's door is open,
the power supply is deactivated again.
X Position 2(ignition): press Start/Stop
button 0043twice.
The power supply is switched off again if:
R you press Start/Stop button 0043once when
in this position
R the driver's door is open
SmartKey You can also start the vehicle with the
SmartKey in the ignition lock.
The ignition lock is located in the rear
stowage space of the center console. Driving
119Driving and parking Z

005A
To remove the SmartKey
0047 Power supply for some consumers, such
as the windshield wipers
0048 Ignition (power supply for all consumers)
and drive position
0049 To start the engine
i The SmartKey can be turned in the
ignition lock even if it is not the correct
SmartKey for the vehicle. The ignition is not
switched on. The engine cannot be started. Starting the engine
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
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation. i
Do not depress the accelerator pedal
when starting the engine.
Starting procedure with the Start/Stop
button i
The Start/Stop button can be used to
start the vehicle without inserting the
SmartKey into the ignition lock. You merely
need to carry the SmartKey on your person.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 119).
The engine starts.
Starting procedure with the SmartKey If the Start/Stop button is inoperative, you
can also start the vehicle using the SmartKey
in the ignition lock.
X
Turn the SmartKey to position 3in the
ignition lock (Y page 119) and release it as
soon as the engine is running. Pulling away
AMG SPEEDSHIFT DCT 7-speed sports
transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
i It is only possible to shift the transmission
from position Pto the desired position, if:
R the engine is running and
R you depress the brake pedal
Only then is the parking lock released. If the
brake pedal is not depressed, the E-SELECT 120
DrivingDriving and parking

transmission position
Dor R, park position
P is otherwise engaged automatically.
The transmission could be damaged.
i The E-SELECT lever always returns to its
original position.
The current transmission position P,R, N
or Dappears in the transmission position
display in the multifunction display.
If you wish to select a transmission position
or to disengage park position P, the engine
must be running.
Engaging park position P
X When the vehicle is stationary, depress the
brake pedal.
X Press the Pbutton in the center console.
i Park position Pis disengaged if you:
R depress the brake pedal and
R push the E-SELECT lever forwards or
back to the first point of resistance
The transmission shifts to neutral N.
To shift directly from Pto R:
X Depress the brake pedal and push the
E-SELECT lever forwards past the first
point of resistance.
To shift directly from Pto D:
X Depress the brake pedal and push the
E-SELECT lever back past the first
point of resistance.
Engaging park position P automatically
Park position is engaged automatically in the
following circumstances:
R if you switch off the engine using the Start/
Stop button and open the driver's or front-
passenger door.
R if you remove the SmartKey from the
ignition lock.
R if you open the door while traveling at low
speed in transmission position Dor R. Shifting to neutral N
X
When the vehicle is stationary, depress the
brake pedal.
X Push the E-SELECT lever forwards or back
to the first point of resistance.
i If you move the E-SELECT lever to N
before switching off the engine, the
transmission remains in Nfor
approximately 30 minutes. If you open the
driver's or front-passenger door during this
period, the transmission automatically
shifts to P.
The transmission remains in Nif:
R the SmartKey is in the ignition lock and
R you use the E-SELECT lever to shift the
transmission to Nbefore switching the
engine off
This still applies if you open the driver's or
front-passenger door.
Further information is available in the "Car
wash" section (Y page 223).
Engaging reverse gear R
X When the vehicle is stationary, depress the
brake pedal.
X Push the E-SELECT lever forward past the
first point of resistance.
Shifting to transmission position D
X When the vehicle is stationary, depress the
brake pedal.
X Push the E-SELECT lever back past the first
point of resistance. 122
AMG SPEE
DSHIFT DCT 7-speed spor ts transmissionDriving and parking

Problems with fuel and the fuel tank
Problem Possible causes/consequences and
0050
0050Solutions Fuel is leaking from the
vehicle.
G
Risk of explosion or fire
The fuel line or the fuel tank is defective.
X Set the Start/Stop button to key position 0immediately.
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The fuel filler flap
cannot be opened. The fuel filler flap is not unlocked.
or
The SmartKey battery is discharged.
X
Unlock the vehicle (Y page 68).
or
X Unlock the vehicle using the mechanical key (Y page 71).The fuel filler flap is unlocked, but the opening mechanism is
jammed.
X
Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable
materials come into contact with parts of the
vehicle which are hot. Take particular care not
to park on dry grassland or harvested grain
fields. G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine. In addition, they may operate vehicle
equipment and become trapped. 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 unsupervised in the vehicle.
! If the engine speed is too high or if the
vehicle is rolling, do not shift the
transmission directly from Dto R, from R
to Dor directly to P.
Do not open the driver's door while the
vehicle is in motion. At low speeds in
transmission position Dor R, park position
P is otherwise engaged automatically.
The transmission could be damaged.
! Always secure the vehicle correctly
against rolling away. Otherwise, the vehicle
or its drivetrain could be damaged. Parking
131Driving and parking Z

To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R the transmission must be in position P.
R the SmartKey must be in position 0in the
ignition lock and then removed from the
ignition lock, or the Start/Stop button must
be pressed.
R on steep uphill or downhill gradients, turn
the front wheels towards the curb.
R on steep uphill or downhill gradients, the
front axle of an empty vehicle must be
secured, for example with a wheel chock.
R on steep uphill or downhill gradients, the
rear axle of a laden vehicle must be
additionally secured, for example with a
wheel chock. Switching off the engine
Important safety notes G
WARNING
When the engine is switched off, the
transmission shifts into neutral position N.
The vehicle may roll away. There is a risk of
an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked
vehicle from rolling away by applying the
parking brake.
! Do not open the driver's door while the
vehicle is in motion. At low speeds in
transmission position Dor R, park position
P is otherwise engaged automatically. This
can damage the transmission.
i Observe the display messages in the
instrument cluster (Y page 163).
AMG SPEEDSHIFT DCT 7-speed sports
transmission X
Shift the transmission to Pwith the button
in the center console. Using the Start/Stop button
X
Press the Start/Stop button (Y page 119).
The engine stops and all the indicator
lamps in the instrument cluster go out.
X Apply the electric parking brake.
i The engine can be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for about three
seconds.
i If you switch the engine off with the
transmission in position Ror D, the
transmission automatically shifts to N.
If you move the E-SELECT lever to Nbefore
switching off the engine, the transmission
remains in Nfor approximately
30 minutes.
If you open the driver's or front-passenger
door during this period, the transmission
automatically shifts to P.
Using the SmartKey
! Do not remove the SmartKey while the
vehicle is in motion. Otherwise, at low
speeds, parking lock Pwill be activated
automatically.
Do not open the driver's door while the
vehicle is in motion. At low speeds,
transmission position Pis engaged
automatically.
This could cause damage to the
transmission and the parking lock.
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The parking lock is activated.
X Apply the electric parking brake.
i If you move the E-SELECT lever to N
before switching off the engine, the
transmission remains in Nfor
approximately 30 minutes. If you open the
driver's or front-passenger door during this
period, the transmission automatically
shifts to P. 132
ParkingDriving and parking

The transmission remains in
Nif:
R the SmartKey is in the ignition lock and
R you use the E-SELECT lever to shift the
transmission to Nbefore switching the
engine off
This still applies if you open the driver's or
front-passenger door.
Further information on transmission
position Nwhen operating with a SmartKey
is available in the "Car wash" section
(Y page 223). Electric parking brake
General notes G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle
equipment and become trapped. 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 unsupervised in the vehicle. Applying/releasing manually
X
To engage: push handle 0043.
When the electric parking brake is
engaged, the red 0049(USA only)
or 0024 (Canada only) indicator lamp lights
up in the instrument cluster.
i The electric parking brake can also be
applied when the SmartKey is in position
0.
X Pull handle 0043.
The red 0049(USA only) or 0024(Canada
only) indicator lamp in the instrument
cluster goes out.
i The electric parking brake can only then
be released when the ignition is switched
on using the Start/Stop button.
Releasing the electric parking brake
automatically The electric parking brake is released
automatically when the following conditions
are simultaneously fulfilled:
R
the engine is running.
R the transmission is in position Dor R.
R the hood is closed.
R your seat belt is fastened.
R you accelerate.
If the transmission is in position R, the trunk
lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted out of Por you have
previously driven faster than 2 mph
(3 km/h).
Emergency braking The vehicle can also be braked during an
emergency by using the electric parking
brake. Parking
133Driving and parking Z

Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed
reaction from the brakes when braking for the
first time. This may also occur after the
vehicle has been washed or driven through
deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the
vehicle washed, brake firmly while paying
attention to the traffic conditions. This will
warm up the brake discs, thereby drying them
more quickly and protecting them against
corrosion.
Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
R Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distance to the vehicle
ahead.
Servicing the brakes !
If the red brake warning lamp lights up in
the instrument cluster and you hear a
warning tone while the engine is running,
the brake fluid level may be too low.
Observe additional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked
immediately. This work should be carried
out at a qualified specialist workshop. !
As the ESP ®
system operates
automatically, the engine and the ignition
must be switched off (the SmartKey must
be in position 0or 1in the ignition lock or
the Start/Stop button must be in position
0 or 1) if:
R the electric parking brake is tested using
a brake dynamometer.
R the vehicle is towed with one axle raised.
Braking triggered automatically by ESP ®
may seriously damage the brake system.
All checks and maintenance work on the
brake system must be carried out at a
qualified specialist workshop. Have this work
carried out at an authorized Mercedes-Benz
Center.
Have the brake pads replaced and the brake
fluid renewed at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz
Center.
If the brake system has only been subject to
moderate loads, you should test the
functionality of your brakes at regular
intervals. To do so, press firmly on the brake
pedal when driving at a high speed. This
improves the grip of the brake pads.
You can find a description of Brake Assist
(BAS) on ( Ypage 55).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond
to an equivalent quality standard. Brake
pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your
vehicle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety. 136
Driving tipsDriving and parking

General notes
Rear view camera
0043is an optical parking aid.
It shows the area behind your vehicle in the
COMAND display. View through the camera
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the
bottom-most guideline.
The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The rear view camera does not show
objects in the following positions:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
Activating the rear view camera X
Ensure that key position 2has been
selected with the Start/Stop button.
X Make sure that the "rear view camera"
function is selected in COMAND (see the separate operating instructions for
COMAND).
X Engage reverse gear.
The COMAND display shows the area
behind the vehicle.
You can also switch off the display of the area
behind the vehicle in the COMAND display. Blind Spot Assist
General notes Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from a speed of
approximately 20 mph
(30 km/h). A warning
display in the exterior mirrors draws your
attention to vehicles detected in the
monitored area. If you then switch on the
corresponding turn signal to change lanes,
you will also receive a visual and audible
collision warning. For this purpose, Blind Spot
Assist uses sensors in the rear bumper.
Important safety notes Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving.
G
WARNING
Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles which approach with a large speed
differential and overtake your vehicle
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
Always observe the traffic conditions
carefully, and maintain a safe lateral distance.
i USA only:
This device has been approved by the FCC
as a "Vehicular Radar System". The radar
sensor is intended for use in an automotive
radar system only. Removing, tampering Driving systems
145Driving and parking Z