start stop button MERCEDES-BENZ SLS AMG GT ROADSTER 2015 C197 Owner's Guide

Defrosting th
ewindows
Windows fogged up on th einside X
Activat ethe "Coolin gwitha ir dehumidifi-
cation "function 005A.
X Activat eautomatic mode 0058.
X If th ewindows continue to fo gup, activate
th e" Windshield defrosting" function 0064.
Windows fogged up on th eoutside X
Activat ethe windshield wipers.
X Press the 008Fbuttonrepeatedly until the
009B or009C symbol appears in th edis-
play.
i You should only selec
tthiss etting until
th ew indshield is clear again. Rea
rwindow defroster
General notes The rea
rwindow defroster has ahighc urrent
draw. You should therefore switch it of fas
soo nast herea rwindow is clear .Otherwise,
th er earw indow defroster switches of fauto-
matically after severa lminutes.
If th ebattery voltage is to olow, th erearw in-
dow defroster may switch off.
Activating/deactivating X
Selec tkey position 2wit hthe Start/Stop
butto n(Ypage 119).
X Press the 006Cbutton.
The indicator lamp in the 006Cbuttonlights
up or goe sout. 112
Operating th
eclimat econt rol systemsClimat econt rol

Problems with the rear window defroster
Problem
Possible causes/consequences and
0050
0050Solutions The rear window
defroster has deacti-
vated prematurely or
cannot be activated. The on-board voltage is too low because too many electrical con-
sumers are switched on.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again. Activating/deactivating air-recircula-
tion mode
General notes You can deactivate the flow of fresh air if
unpleasant odors are enteringt
he vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
Activating/deactivating X
Select key position 2with the Start/Stop
button (Y page 119).
X To activate: press the0072button.
The indicator lamp in the 0072button lights
up.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in the
0072 button is not lit.
Outside air is added after about 30
minutes.
X To deactivate: press the0072button.
The indicator lamp in the 0072button goes
out. i
Air-recirculation mode deactivates auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
41 ‡(5†)
R after approximately five minutes if cool-
ing with air dehumidification is deacti-
vated
R after approximately 30 minutes at out-
side temperatures above approximately
41 ‡(5†)ift he "Cooling with air dehu-
midification" function is activated Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air vents. This could result in burns or frostbitein the immediate vicinity of the air vents. There
is ar isk of injury.
Make sure that all vehicle occupants always
maintain asufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior. Setting the air vents
113Climatecontrol Z

!
Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature. The oper-
ating temperature has been reached when
the engine oil temperature displayint he
on-board computer's AMG menu no longer flashes.
Only shift into reverse gear when the vehi-
cle is stationary.
Where possible, avoid spinning the drive
wheels when pulling awayons lippery
roads. You could otherwise damage the
drive train.
! During
acold start with low engine oil
temperatures (below 32 ‡) (0 †), the max- imum engine speed is restricted in order toprotect 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 immedi-
ately.
If there is aSmartKey in the ignition lock, this
takes precedence over the KEYLESS-GO start
function. X
Position 0:ifStart/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 windshieldw ip-
ers, for example.
If you press Start/Stop button 0043twice when
in this position and the driver's door is open,
the power supplyisd eactivated again.
X Position 2(ignition): press Start/Stop but-
ton 0043twice.
The power supplyiss witched off againif:
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 Smart-
Key in the ignition lock.
The ignition lock is located in the rear stow-
age 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 igni-
tion lock even if it is not the correc tSmart-
Key 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 endangerin gother
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 shiftin gthe automatic transmission out of
park position P
R Start the engine.
There is arisk of an accident and injury.
When leaving the vehicle, alway stake 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 ar isk of fatal injury. Therefore never leave
the engine runnin ginenclosed spaces with-
out 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 igni-
tion lock (Y page 119) and release it as
soon as the engine is running. Pulling away
AMG SPEEDSHIF TDCT 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 ar isk of an accident.
When engaging transmission position Dor R,
alway sfirmly 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 runnin gand
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

The transmission could be damaged.
i The E-SELECT lever alway
sreturn stoits
original position.
The curren ttransmission position P,R, Nor
D appears in the transmission position dis-
play in the multifunction display.
If you wish to select atransmission position or
to disengage park position P,the engine must
be running.
Engaging parkp osition 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 parkp ositionPautomatically
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 igni-
tion 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 switchin goff the engine, the trans-
mission 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 switchin gthe
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 SPEEDSHIFT DCT 7-speed sportst
ransmissionDriving 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 aqualified specialist workshop. The fuel filler flap can-
not 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 70).The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X Consult aqualified 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 arisk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi- cle 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 vehi- cle, 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 equip-
ment and become trapped. There is
arisk 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 transmis-
sion directly from Dto R,f rom Rto Dor
directly to P.
Do not open the driver's door while the
vehicle is in motion. At low speeds in trans-
mission position Dor R,p ark position Pis
otherwise engaged automatically.
The transmission could be damaged.
! Always secure the vehicle correctly
against rolling away.O therwise, 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 uphill or downhill gradients, the front
wheels must be turned towards the curb.
R the empty vehicle must be secured at the
fronta xle with awheel chock or similar, for
example, on uphill or downhill gradients.
R aladen vehicle must also be secured at the
rear axle with awheel chock or similar, for
example, on uphill or downhill gradients. Switching off the engine
Important safety notes G
WARNING
When the engine is switched off, the trans-
mission shifts into neutral position N.The
vehicle may roll away.T here isarisk of an
accident.
After switchin goff the engine, alway sswitch
to parking position P.Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
! Do not open the driver's door while the
vehicle is in motion .Atlow speeds in trans-
mission position Dor R,p ark position Pis
otherwise engaged automatically. This can damage the transmission.
i Observe the display messages in the
instrument cluster (Y page 162).
AMG SPEEDSHIF TDCT 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 sec-
onds.
i If you switch the engine off with the trans-
mission in position Ror D,t he transmission
automatically shifts to N.
If you move the E-SELECT lever to Nbefore
switchin goff 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 .Atlow speeds, trans-
mission position Pis engaged automati-
cally.
This could cause damage to the transmis-
sion and the parking lock.
X Turn the SmartKey to position 0in the igni-
tion 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 switchin goff the engine, the trans-
mission 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 switchin gthe
engine off
This still applies if you open the driver's or
front-passenger door.
Further information on transmission posi-
tion Nwhen operating with aSmartKey is
available in the "Car wash" section
(Y page 223). Electric parking brake
General notes G
WARNING
If you leave children unsupervised in the vehi- cle, 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 equip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alway stake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is amalfunction
in the system, it may not be possible to apply
the released parking brake.
X If this is the case, only park the vehicle on
level ground and secure it to prevent it roll- ing away.
X Shift the automatic transmission to posi-
tion P.
It may not be possible to release an applied
parking brake, if the on-board voltage is low
or there is amalfunction in the system. Con-
tact aqualified specialist workshop. 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 clus- ter 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 auto-
matically 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. Parking
133Driving and parking Z

Wet roads
If you have drive
nfor along time in heavy rain
without braking, there may be adelayed reac-
tion from the brakes whe nbraking for the first
time. This may also occur after the vehicl ehas
been washed or drive nthroug hdeep water.
You have to depress the brake pedal more
firmly .Maintain agreater distance from the
vehicl einfront.
After driving on awet road or having the vehi-
cle washed ,brake firmly while paying atten-
tion to the traffic conditions. This wil lwarmup
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads If you drive on salted roads,
alayer of salt
residue may form on the brake discs and
brake pads. This can result in asignificantly
longe rbraking distance.
R Brake occasionally to remove any possible
sal tresidue. Make sure that you do not
endange rother road users whe ndoing so.
R Carefully depress the brake pedal and the
beginning and end of ajourney.
R Maintain agreater distance to the vehicle
ahead.
Servicing the brakes !
If the red brake warning lamp lights up in
the instrument cluster and you hea rawarn-
ing tone while the engine is running, the
brake fluid leve lmay be too low .Observe
additiona lwarning messages in the multi-
function display.
The brake fluid leve lmay be too low due to
brake pad wea rorleaking brake lines.
Have the brake syste mchecked immedi-
ately. This work should be carrie dout at a
qualified specialist workshop. !
As the ESP ®
syste moperates automati-
cally, the engine and the ignition must be
switched off (the SmartKey must be in posi-
tion 0or 1in the ignition lock or the Start/
Stop button must be in position 0or 1)i f:
R the electric parking brake is tested using
ab rake dynamometer.
R the vehicl eistowed with one axle raised.
Braking triggered automatically by ESP ®
may seriousl ydamage the brake system.
All checks and maintenance work on the
brake syste mmust be carrie dout at aquali-
fied specialist workshop. Have this work car- ried out at an authorized Mercedes-Benz
Center.
Have the brake pad sreplaced and the brake
fluid renewe dataqualified specialist work-
shop, e.g. an authorized Mercedes-Benz
Center.
If the brake syste mhas only been subject to
moderate loads, you should test the function- ality of you rbrakes at regulari ntervals. At a
high speed, brake firmly while paying atten-
tion to the traffic conditions. This improves
the grip of the brake pads.
You can find adescription of Brake Assist
(BAS) on (Y page55).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicl ewhich 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 coul daffect you rvehi-
cle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for you rvehicl ebyM ercedes-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 you rvehicle's operating safety. 136
Driving tipsDriving and parking

(30 km/h), warnin
glamp 0043on the corre-
sponding side lights up red. This warnin gis
always given when avehicle enters the blind
spot monitoring range from behind or from
the side. When you overtake avehicle, the
warnin gonly occurs if the differenc einspeed
is less than 7mph (12 km/h).
The yellow indicator lamp goes out if reverse gear is engaged. In this event, Blin dSpot
Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Collision warning If
av ehicle is detected in the monitoring range
of Blin dSpot Assist and you switc honthe
corresponding turn signal, adouble warning
ton esounds .Red warnin glamp 0043flashes. If
the turn signal remain son, vehicles detected
are indicated by the flashin gofred warning
lamp 0043.There are no further warnin gtones.
Switching on Blind Spot Assist X
Make sure that Blin dSpot Assist
(Y page 157) is activated in the on-board
computer.
X Ensure that key position 2has been
selected with the Start/Stop button.
Warnin glamps 0043in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow. Driving systems
147Driving and parking Z