2013 MERCEDES-BENZ SLK-Class engine

Hill start assist
G
WARNING
After a short time, hil lstar tassist will no
longer 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.N ever
leave the vehicle when it is held by 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 foot
from the brake pedal to the accelerator pedal
and to depress it before the vehicle begins to
roll.
X Remove your foot from the brake pedal.
The vehicle is then held for about a second.
X Pull away.
Hill start assist will not function if:
R you are pulling away on a level road or on
a downhill gradient.
R on vehicles with automatic transmission,
the transmission is in N.
R the electric parking brake is applied.
R ESP ®
is malfunctioning. ECO start/stop function
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. General notes The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Every time you switch on the engine using the
SmartKey or the Start/Stop button, the ECO
start/stop function is activated.
AMG vehicles:
the ECO start/stop function
is only available in drive program C.
The system is operational if all conditions for
automatic engine switch-off have been
fulfilled (Y page 141)a nd the000Esymbol is
shown in the multifunctio ndisplay.
AMG vehicles: the AMG menu in the
multifunction display additionally shows
Stop/Start Active message.
If conditions for automatic engine switch-off
have not been fulfilled (Y page 141), the
000E symbol will not be shown.
AMG vehicles: the AMG menu in the
multifunction display also shows the Stop/ Start Inactive message.
If the ECO start/stop function has been
manually deactivated (Y page 140) or a
malfunction has caused the system to be
deactivated, the 000Esymbol is not
displayed.
AMG vehicles: theStop/Start Active or
Stop/Start Inactive display message
goes out in the AMG men uofthe
multifunction display.
i AMG vehicles: If automatic cylinder shut-
off is active in drive program C, the number
of active cylinders 4is also shown in the
000E symbol. This means that the engine
is operating with four cylinders.
If cylinder shut-off is not active, the engine
will operate with all eight cylinders. In this Driving
139Driving and parking Z

case, the number of active cylinders
8is
shown in the 000Esymbol.
Deactivating/activating the ECO start/
sto pfunction ECO button
Deactivating (except for AMG vehicles)
X
Press button 0003.
Indicator lamp 0004on button 0003and the
000E symbol in the multifunction display go
out.
Activating (except for AMG vehicles)
X Press button 0003.
Indicator lamp 0004lights up. If all conditions
for automatic engine switch-off
(Y page 141) are fulfilled, the 000Esymbol
is show ninthe multifunction display.
If not all conditions for automatic engine
switch-off (Y page 141) are fulfilled, the
000E symbol is not shown in the
multifunction display. If this is the case, the
ECO start/stop function is not available.
Deactivating (AMG vehicles)
X Press button 0003in drive program C.
or
X Switch to drive program Sor M
(Y page 147).
Indicator lamp 0004on button 0003and the
000E symbol in the multifunction display go
out. The
Stop/Start Active or
Stop/Start Inactive message in the AMG menu in the
multifunction display goes out.
Activating (AMG vehicles)
X Press button 0003.
Indicator lamp 0004lights up. If drive
program Sor Mis active, the automatic
transmission switches to drive program C.
If all conditions for automatic engine
switch-off (Y page 141) are fulfilled, the
000E symbol is shown in the multifunction
display. In addition, the Stop/Start Active message is shown in the AMG
menu in the multifunction display.
If not all conditions for automatic engine
switch-off (Y page 141) are fulfilled, the
000E symbol is not shown in the
multifunction display. If this is the case, the
ECO start/stop function is not available. In
addition, the Stop/Start Inactive message is shown in the AMG menu in the
multifunction display.
i If indicator lamp 0004is off, the ECO start/
stop function has been deactivated
manually or as the result of a malfunction.
The engine will then not be switched off
automatically when the vehicle stops.
i All vehicles (except AMG vehicles): the
ECO start/stop function is activated each
time the engine is switched on.
i AMG vehicles: each time the engine is
started, the ECO start/stop function
switches to the status (on or off) that was
selected before switching off the engine. 140
DrivingDriving and parking

Automatic engine switch-off
Method of operation
The ECO start/stop function is operational
and the
000Esymbol is displayed in the
multifunction display, if:
R the indicator lamp in th eECO butto nis lit
green.
R the outside temperature is within the
comfort range.
R the engine is at normal operating
temperature.
R the set temperature for the vehicle interior
has been reached.
R the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If conditions for automatic engine switch-off
have not been fulfilled, the 000Esymbol will
not be shown.
i All vehicles (apart from AMG
vehicles): automatic engine switch-off can
take place a maximum of four times
consecutively (initial stop then repeated
three times). The automatic engine switch-
off is then available againa fter the000E
symbol appears in the multifunction
display.
i AMG vehicles: times which the engine
can be automatically switched off.
i You can still activate the HOLD function
whe nthe vehicle is stationary, even if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase. When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated. Depress the accelerator pedal carefully, as the engine
must be started first.
Vehicles with manual transmission The ECO start/stop function switches off the
engine automatically at low speeds.
X
Brake the vehicle until it comes to a
standstill.
X Engage neutral N(Ypage 144) (follow
gearshift instruction 0003to 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.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again once the 000Esymbol reappears in
the multifunction display.
Automatic engine start Method of operation
The engine starts automatically if:
R
you switch off 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. Driving
141Driving and parking Z

R
the vehicle starts to roll.
R the brake syste mrequires this.
R the temperature in the vehicle interior
deviates from the set range.
R the system detects moisture on the
windshield when the air-conditioning
system is switched on.
R the charge level of the battery is too low.
Vehicles with manual transmission
! Only engage gear when the clutch pedal
is depressed.
The engine starts automatically if:
R you depress the clutch pedal.
R you depress the accelerator pedal.
Vehicles with automatic transmission
The engine starts automatically if:
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you move the transmission out of position
P.
i Shifting the transmission to position P
does not start the engine. 142
DrivingDriving and parking

Problems with the engine
Problem Possible causes/consequences and
0001 Solutions
The engine does not
start. X
Try to start the engine again. The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Turn the SmartKey back to position 0in the ignition lock before
attempting to start the engine again.
or
X Press the Start/Stop button repeatedly until all indicator lamps
in the instrument cluster go out.
X Try to start the engine again (Y page 137). Avoid excessively
long and frequent attempts to start the engine, as this will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-start the vehicle (Y page 299).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.
X Have the cause rectified immediately at a qualified specialist
workshop. Driving
143Driving and parking Z

Problem Possible causes/consequences and
0001 Solutions
The coolant
temperature display is
showing more than
248 ‡ (120 †). The
coolant warning lamp
may also be lit and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 279). Observe the warning
notes as you do so and add coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
At coolant temperatures below 248 ‡(120 †), drive to the next
qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-and-go traffic. Manual transmission
Gear lever
! When shifting between 5thand 6thgear,
you should always push the gea rlever all
the way to the right. You could otherwise
shift unintentionally into 3rdor4th gear
and damage the transmission.
If you shift down at too high a speed
(transmission braking), this can cause the
engine to overrev, leading to engine
damage.
Never hold the vehicle stopped on a hill by
using the clutch pedal. There is otherwise
a risk of damaging the clutch. Gear lever
0011
Reverse gear
0006 bis000F
Forward gears Neutral N with ECO start/stop
function activated
The engine is switched off, if:
R the vehicle speed is below a certain
threshold in neutral Nand
R you do not depress the clutch pedal.
Further information on the ECO start/stop
function (Y page 139).144
Manual transmissionDriving and parking

Engaging reverse gear
! Only shif tinto reverse gear Rwhen the
vehicle is stationary. Otherwise, you could
damage the transmission.
X Stop the vehicle.
X Depress the clutch pedal fully.
X shift to neutral N.
X Move the gear lever firmly to the left
beyond the point of resistance and then
forwards. Shift recommendation
X
Shift gear according to gearshift
recommendation 0003when shown in the
multifunctio ndisplay of the instrument
cluster.
The gearshift recommendations assist you in
adopting an economical driving style. The
recommended gear is shown in the
multifunction display. Automatic transmission
Important safety notes
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. G
WARNING
The automatic transmission switches to
neutral position Nwhen you switch off the
engine. 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 fro mrolling away by applying the
parking brake. Selector lever
Overview of transmission positions Selector lever
0014
Park position with selector lever lock
0011 Reverse gear
0012 Neutral
0013 Drive Automatic transmission
145Driving and parking Z

0002
Neutral
Do not shift the transmission to
N
while driving. Otherwise, the
automatic transmission could be
damaged.
No power is transmitted from the
engine to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely, e.g .to
push it or tow it.
If ESP ®
is deactivated or faulty:
only shift the transmission to
position Nif the vehicle is in danger
of skidding, e.g. on icy roads.
! Rolling in neutral Ncan damage
the drive train. 0009
Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Changing gear
The automatic transmission shifts to the
individual gears automatically when it is in
transmission position D.This automatic
gearshifting behavior is determined by:
R a shift range restriction, if selected
R the selected drive program (Y page 147)
R the position of the accelerator pedal
R the road speed Driving tips
Accelerator pedal position Your style of driving influences how the
automatic transmission shifts gear:
R little throttle: early upshifts
R more throttle: late upshifts Double-clutch function When shifting down, the double-clutch
function is active regardless of the currently
selected drive program. The double-clutch
function reduces load change reactions and
is conducive to a sporty driving style. The
sound generated by the double-clutch
function depends on the drive program
selected.
Kickdown
Use kickdown for maximum acceleration.
X
Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up. Program selector button
General notes Example: program selector button
X
Press program selector button 0003
repeatedly until the letter for the desired
gearshift program appears in the
multifunction display.
The program selector button allows you to
choose between different driving
characteristics.
In AMG vehicles, drive program Eis called
drive program C. Automatic transmission
147Driving and parking Z