2014 MERCEDES-BENZ SLK ROADSTER Owners Manual

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.
A check which periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in the vehi- cle. This occurs, for example, when starting
the engine.
To start the vehicle without actively using the
key:
R the Start/Stop button must be inserted in
the ignition lock
R the key must be in the vehicle
R the vehicle must not be locked with the key
or KEYLESS-GO (Y page 73)
Do not keep the key:
R with electronic devices, e.g. a mobile
phone or another key
R with metallic objects, e.g. coins or metal
film
R inside metallic objects, e.g. a metal case
This can affect the function of the key with
KEYLESS-GO.
i The engine can be switched off while the
vehicle is in motion by pressing and holding the Start/Stop button for three seconds.
This function operates independently of the
ECO start/stop automatic engine switch-
off function. Key positions with KEYLESS-GO :
Start/Stop button
; Ignition lock
When you switch on the ignition, all of the
indicator lamps in the instrument cluster light up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see (Y page 252).
If Start/Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can
now activate the windscreen wipers, for
example.
i If you then open the driver's door when in
this position, the voltage supply is switched
off.
X To switch on the ignition: press Start/
Stop button :twice.
The ignition is switched on.
i The ignition is switched off if:
R the driver's door is opened and
R you press Start/Stop button :once
when in this position 142
DrivingDriving an
d parking

Removing the Start/Stop button
You can remove the Start/Stop button from
the ignition lock and start the vehicle as nor-
mal using the key.
X Remove Start/Stop button :from ignition
lock ;.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. You should, however,
always take the key with you when leaving
the vehicle. As long as the key is in the
vehicle:
R the vehicle can be started using the
Start/Stop button
R electrically powered equipment can be
operated Starting the engine
Important safety notes G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncoming traffic
R operate vehicle equipment and become
trapped, for example In addition, the children could also set the
vehicle in motion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position P or shift manual transmission into
neutral
R start the engine
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the 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 with-
out sufficient ventilation. G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
! Do not depress the accelerator when
starting the engine.
i AMG vehicles:
the exhaust flap of the
exhaust system is checked after each cold start. The sound produced by this proce-
dure is audible.
i Vehicles with a petrol engine:
the
engine runs at a higher engine speed during the cold start procedure so that the cata-
lytic converter can reach operating tem-
perature more quickly. The sound of the
engine may change as a result. Driving
143Driving and parking Z

Manual transmission
X
Depress the brake pedal and keep it
depressed.
X Fully depress the clutch pedal.
X Shift to neutral N.
i You can only start the engine when the
clutch pedal is fully depressed.
Automatic transmission X
Shift the transmission to position P.
The transmission position indicator in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
Starting procedure with the key X
To start a petrol engine: turn the key to
position 3in the ignition lock (Y page 141)
and release it as soon as the engine is run-
ning.
X To start a diesel engine: turn the key to
position 2in the ignition lock (Y page 141).
The % preglow indicator lamp in the
instrument cluster lights up.
X When the %preglow indicator lamp
goes out, turn the key to position 3
(Y page 141) and release it as soon as the
engine is running.
i To start the engine using the key instead
of KEYLESS-GO, pull the Start/Stop button
out of the ignition lock.
i You can start the engine without preglow
if the engine is warm.
Using KEYLESS-GO to start the engine i
The Start/Stop button can be used to
start the vehicle manually without inserting
the key into the ignition lock. The key must
be in the vehicle and the Start/Stop button must be inserted in the ignition lock. This
mode for starting the engine operates inde- pendently of the ECO start/stop automatic
engine start function.
X Depress the brake pedal and keep it
depressed.
X To start a petrol engine: press the Start/
Stop button once (Y page 141).
The engine starts.
X To start a diesel engine: press the Start/
Stop button once (Y page 141).
Preglow is activated and the engine starts. Pulling away
Manual transmission !
Change gear in good time and avoid spin-
ning the wheels. Otherwise, you could dam- age the vehicle.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully.
X Shift to either first gear or reverse gear R.
X Release the electric parking brake
(Y page 163).
X Release the brake pedal.
X Slowly release the clutch pedal and gently
depress the accelerator pedal.
i Follow the shift recommendations in the
multifunction display for an economical
driving style (Y page 152).
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic lock- ing feature (Y page 216).
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R, 144
DrivingDriving and parking

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
you depress the brake pedal. Only then is
the shift lock released.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake (Y page 163) is
automatically released.
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic lock- ing feature (Y page 216).
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill start assist Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient. It
holds the vehicle for a short time after you
have removed your foot from the brake pedal. This gives you enough time to move your footfrom the brake pedal to the accelerator pedal
and depress it before the vehicle begins to
roll. G
WARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury. Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
X Remove your foot from the brake pedal.
The vehicle is then held for about a second.
X Pull away.
Hill start assist is not active if: R you are pulling away on a level road or a
downhill gradient.
R the transmission is in position Non vehi-
cles with automatic transmission.
R the electric parking brake is applied.
R ESP ®
is malfunctioning. ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is stop- ped under certain conditions.
When pulling away again, the engine starts
automatically. The ECO start/stop function
thereby helps you to reduce the fuel con-
sumption and emissions of your vehicle.
Important safety notes G
WARNING
If the engine is switched off automatically and you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving. There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away. Driving
145Driving an d parking Z

General notes
:
ECO start/stop display (example: colour
multifunction display)
The ECO start/stop function automatically
switches the engine off when the vehicle
stops moving if:
R the è ECO symbol appears in the mul-
tifunction display in vehicles with black and white multifunction display
R the è ECO symbol appears in green in
the multifunction display in vehicles with a colour multifunction display
The ECO start/stop function is activated
whenever you switch on the engine using the key or the Start/Stop button.
If the ECO start/stop function has been man-
ually deactivated (Y page 148) or a malfunc-
tion has caused the system to be deactivated, the è symbol is not displayed.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
i AMG vehicles:
if automatic cylinder shut-
off is active in drive program C, then4, the
number of active cylinders, is also shown in
the è ECO symbol. This means that the
engine is operating with four cylinders.
If cylinder shut-off is not active, the engine
is operating with all eight cylinders. In this
case, 8, the number of active cylinders, is
shown in the èECO symbol. Automatic engine switch-off Operation
The ECO stop/start function is operational
and shows the following in the multifunction
display:
R the è ECO symbol in vehicles with a
black-and-white multifunction display
R a green èECO symbol in vehicles with a
colour multifunction display
This is the case if, among other things:
R the indicator lamp in the ECO button is lit
green
R the outside temperature is within the range
that is suitable for the system
R the engine is at normal operating temper-
ature
R the set temperature for the vehicle interior
has been reached
R the battery is sufficiently charged
R the system detects that the windscreen is
not misted up when the air-conditioning
system is switched on
R the bonnet is closed
R the driver's door is closed and the driver's
seat belt is fastened
If not all conditions for an automatic engine
switch-off are met:
R the è ECO symbol does not appear in
vehicles with a black-and-white multifunc-
tion display
R a yellow èECO symbol appears in vehi-
cles with a colour multifunction display
i All of the vehicle's systems remain active
when the engine is switched off automati-
cally.
i All vehicles (except AMG vehicles):
automatic engine switch-off can take place a maximum of four times consecutively (ini-
tial stop, then three subsequent stops).
In vehicles with a black-and-white multi-
function display, the automatic engine
switch-off is then available again after the 146
DrivingDriving and parking

ECO symbol appears in the multifunction
display.
In vehicles with a colour multifunction dis-
play, the èECO symbol appears in yel-
low in the multifunction display after the
fourth automatic engine start. When the
è ECO symbol is shown in green in the
multifunction display, automatic engine
switch-off is again possible.
i AMG vehicles:
the number of consecu-
tive automatic engine stops is unlimited.
i The HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated.
Vehicles with manual transmission The ECO start/stop function switches off the
engine automatically at low speeds.
X Brake the vehicle.
X Engage neutral N(follow gearshift instruc-
tion :to engage neutral N, if necessary).
X Release the clutch pedal.
The engine is switched off automatically.
Vehicles with automatic transmission
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the engine automatically. Automatic engine start Operation
The engine is started automatically if:
R
you deactivate the ECO start/stop function
by pressing the ECO button
R you engage reverse gear R
R you switch to drive program Sor M(AMG
vehicles)
R you unfasten your seat belt or open the
driver's door
R the vehicle starts to roll
R the brake system requires this
R the temperature in the vehicle interior devi-
ates from the set range
R the system detects moisture on the wind-
screen when the air-conditioning system is
switched on
R the battery's charge status is too low
Vehicles with manual transmission
! Only engage gear when the clutch pedal is
depressed.
The engine is started automatically if you:
R depress the clutch pedal fully
R depress the accelerator pedal
Vehicles with automatic transmission
The engine is started automatically if you: R release the brake pedal in transmission
position Dor Nwhen the HOLD function is
not active
R depress the accelerator pedal
R move the transmission out of position P
i Shifting the transmission to position
P
does not start the engine. Driving
147Driving an d parking Z

i
When you shift the transmission from Rto
D, the ECO start/stop function is available in the following cases:
R after the èECO symbol appears in
the multifunction display in vehicles with
black and white multifunction display
R after the èECO symbol appears in
green in vehicles with colour multifunc-
tion display
Deactivating/activating the ECO start/
stop function All vehicles (except AMG vehicles)
X
To deactivate: press ECO button :.
Indicator lamp ;and the èECO sym-
bol in the multifunction display go out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If all conditions for an automatic engine
switch-off are met:
R the è ECO symbol appears in the
multifunction display in vehicles with a
black-and-white multifunction display
R the è ECO symbol appears in green in
the multifunction display in vehicles with
a colour multifunction display If not all conditions for an automatic engine
switch-off are met:
R the è ECO symbol does not appear in
the multifunction display in vehicles with
a black-and-white multifunction display
R the è ECO symbol appears in yellow
in the multifunction display in vehicles
with a colour multifunction display
If this is the case, the ECO start/stop func-
tion is not available.
Conditions for the automatic engine
switch-off (Y page 146).
i If indicator lamp
;is off, the ECO start/
stop function has been deactivated man-
ually or as the result of a malfunction. The
engine will then not be switched off auto-
matically when the vehicle stops.
AMG vehicles X
To deactivate: in drive program C, press
ECO button :.
or X Switch to drive program Sor M
(Y page 154).
Indicator lamp ;and the èECO sym-
bol in the multifunction display go out.
X To activate: press ECO button :.
Indicator lamp ;lights up. If drive pro-
gram Sor Mis active, the automatic trans-
mission switches to drive program C.148
DrivingDriving and parking

If all conditions for an automatic engine
switch-off are met:
R the è ECO symbol appears in the
multifunction display in vehicles with a
black-and-white multifunction display
R the è ECO symbol appears in green in
the multifunction display in vehicles with a colour multifunction display
If not all conditions for an automatic engine
switch-off are met:
R the è ECO symbol does not appear in
the multifunction display in vehicles with a black-and-white multifunction display
R the è ECO symbol appears in yellow
in the multifunction display in vehicles
with a colour multifunction display
If this is the case, the ECO start/stop func-
tion is not available.
Conditions for the automatic engine
switch-off (Y page 146).
i If indicator lamp
;is off, the ECO start/
stop function has been deactivated man-
ually or as the result of a malfunction. The
engine will then not be switched off auto-
matically when the vehicle stops. Driving
149Driving and parking Z