2012 MERCEDES-BENZ SLK250 Owner's Manual

In the automatic drive program, you can
restrict or derestrict the shift range by using
the steering wheel paddle shifters
(Y page 143).
In the manual drive program, you can change
gear using the steering wheelp addle shifters
or the selecto rlever (Y page 144).
i You can only change gear with the
steering wheel paddle shifters when the
transmission is in position D.Automatic drive program
Drive program E(drive program Con AMG
vehicles) is characterized by the following:
R comfort-oriented engine and transmission
settings
R optimal fuel consumption resulting from
the automatic 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 automatic transmission shifting up
sooner .This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin
Drive program Sis characterized by the
following:
R sporty engine and transmission settings
R the vehicle pulling away in first gear
R the automatic transmission shifting up
later
R the fuel consumption possibly being higher
as a result of the later automatic
transmission shift points Shift ranges
Introduction When the automatic transmission is in
position
D, it is possible to restrict or
derestrict the shift range (Y page 143).
The shift range selected is shown in the
multifunction display. The automatic
transmission shifts only as far as the selected
gear. Shift range
0008
You can use the engine's braking
effect.
000B
To use the braking effect of the
engine on downhill gradients and
for driving:
R
on steep mountain roads
R in mountainous terrain
R in arduous conditions 000F
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches
Restricting the shift range
X
Press the selector lever to the left towards
D–.
or
X Pull the left-hand steering wheel paddle
shifter.
The automatic transmission shifts down
one gear and restricts the shift range to the
relevant gear.
i If the engine exceeds the maximum
engine speed when shifting down, the
automatic transmission protects against
engine damage by not shifting down.
i If the maximum engine speed for the shift
range is reached and you continue to
accelerate, the automatic transmission
shifts up in order to prevent the engine Automatic transmission
143Driving and parking Z

from overrevving, even if the shift range is
restricted.
Derestricting the shift range X
Briefly press the selector leve rto the right
towards D+.
or
X Pull the right-hand steerin gwheel paddle
shifter.
The shift range is derestricted.
Clearing the shift range restriction X
Press and hold the selector lever towards
D+ until Dis shown once more in the
multifunction display.
or
X Pull and hold the right-hand steering wheel
paddle shifter until Dis shown again in the
multifunction display.
The automatic transmission shifts from the
current shift range directly to D.
Selecting the ideal shift range X
Press the selector lever to the left towards
D– and hold it in position.
or
X Pull the left-hand steering wheel paddle
shifter and hold it in position.
The automatic transmission shifts to the
gear which allows optimum acceleration
and deceleration. To do this, the automatic
transmission shifts down one or more
gears. Manual drive program
Switching on the manual drive program Manual drive program
Mis different from
drive program Swith regard to spontaneity,
responsiveness and smoothness of gear
changes. Manual drive program
Mcan be selected
using the program selector button. You can
change gears using the steering wheel paddle
shifters or the selector lever in manual drive
program Mif the transmission is in position
D.T he gear selected is shown in the
multifunction display.
X Press the program selector button
(Y page 142) repeatedly until Mappears in
the multifunction display.
Upshifting X
Briefly press the selector lever to the right
towards D+.
or
X Pull the right-hand steering wheel paddle
shifter (Y page 142).
The automatic transmission shifts up to the
next gear.
Vehicles with AMG engines
! In manual drive program M, the automatic
transmission does not shift up
automatically even when the engine
limiting speed for the current gear is
reached. When the engine limiting speed is
reached, the fuel supply is cut to prevent
the engine from overrevving. Always make
sure that the engine speed does not reach
the red area of the tachometer. There is
otherwise a risk of engine damage.
Before the engine speed reaches the red area,
an upshift indicator will be shown in the AMG
menu of the multifunction display. 144
Automatic transmissionDriving and parking

0002
Gear indicator
0003 Upshif tindicator
X Shift up a gear if the color in the
multifunctio ndisplay in the speedometer
changes to red and the UP display message
is shown.
Downshifting X
Briefly press the selector lever to the left
towards D–.
or
X Pull the left-hand steerin gwheel paddle
shifter (Y page 142).
The automatic transmission shifts down to
the next gear.
i If you brake the vehicle or stop without
shifting down, the automatic transmission
will shift down to a gear that will allow the
vehicle to accelerate or pull away again.
i For maximum acceleration, push the
selector lever to the left or pull and hold the
left-hand steering wheel paddle shifter until
the transmission shifts to the optimal gear
for the current speed.
Kickdown i
Vehicles with an AMG engine: it is not
possible to use kickdown in manual drive
program M. You can also use kickdown for maximum
acceleration in manual drive program
M.
X Vehicles for USA: fully depress the
accelerator pedal.
The transmission shifts to a lower gear
depending on the engine speed.
X Vehicles for Canada: depress the
accelerator pedal beyond the pressure
point.
The transmission shifts to a lower gear
depending on the engine speed.
Switching off the manuald rive program X
Press the progra mselecto rbutton
(Y page 142) repeatedly until E(C in AMG
vehicles) or Sappears in the multifunction
display. Automatic transmission
145Driving and parking Z

Problems with the transmission
Problem Possible causes/consequences and
0001 Solutions
The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist
workshop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop the vehicle.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least 10seconds before restarting the engine.
X Shift the transmission to position Dor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
X Have the transmission checked at a qualified specialist
workshop immediately. Releasing the parking lock manually
In the event of an electrical malfunction, it is
possible to release the selector lever lock
manually to move it out of position P, e.g. if
you wish to tow the vehicle away. !
Do not use any sharp-edged objects to
remove the selector lever gaiter from the
center console. This could damage the
selector lever gaiter. X
Apply the electric parking brake.
X Press the frame of selector level gaiter 0002
together somewhat on the side edge at the
back and hold with one hand 0003.
X With the other hand, pry off the frame of
selector level gaiter 0002with a flat, blunt
object (e.g. a screwdriver wrapped in cloth)
at rear edge 0023, pulling it up and out at the
same time.
X Press release buttons 0022down and
simultaneously move the selector lever out
of position P.
The selector lever can now be moved freely
until it is returned to position P. Refueling
Important safety notes
G
WARNING
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury. 146
RefuelingDriving and parking

Never allow sparks, flames or smoking
materials near gasoline.
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging to your
health. G
WARNING
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge .This could cause the gasoline
to spray back out when removing the fuel
pump nozzle, which could cause personal
injury.
! Do not use diesel to refuel vehicles with a
gasoline engine. Even small amounts of the
wrong fuel result in damage to the fuel
system and engine.
! Do not switch on the ignition if you
accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel lines.
Notify a qualified specialist workshop and
have the fuel tank and fuel lines drained
completely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 325). Refueling
Fuel filler flap 0002
Fuel filler flap
0003 To insert the fuel filler cap
0023 Tire pressure table
0022 Fuel type
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or with KEYLESS-
GO.
The position of the fuel filler cap 0010is
displayed in the instrumentc luster.The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the SmartKey from the ignition
lock.
X KEYLESS-GO: open the driver’s door.
This corresponds to SmartKey position 0:
"SmartKey removed".
The driver’s door can be closed again.
X Press the fuel filler flap in marked area 0002.
Fuel filler flap 0002swings up.
X Turn the fuel filler flap counter-clockwise
and remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 0003. Refueling
147Driving and parking Z

X
Completely insert the fille rneck of the fuel
pump nozzle into the tank and refuel.
X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing X
Replace the cap on the filler necka nd turn
clockwise until it engages audibly.
X Close fuel fille rflap 0002.
i If you drive with the fuel filler cap open,
reserve fuel warning lamp 0010flashes .In
addition, the 000ECheck Engine warning
lamp may light up. Amessage appears in
the multifunction display (Y page 219).
For further information on warning and
indicator lamps in the instrument cluster,
see (Y page 234). 148
RefuelingDriving and parking

Problems with fuel and the fuel tank
Problem Possible causes/consequences and
0001 Solutions
Fuel is leaking from the
vehicle.
G
Risk of explosion or fire
The fuel line or the fuel tank is defective.
X Turn the SmartKey to position 0in the ignition lock immediately
and remove it (Y page 131).
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 cannot be unlocked using the button on the
SmartKey.
or
The SmartKey battery is discharged.
X
Unlock the vehicle using the mechanical key (Y page 70).The fuel filler flap is unlocked, but the opening mechanism is
jammed.
X
Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
Do not park this vehicle in areas where
combustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system. Do not park the vehicle on
dry grassland or harvested grain fields. These
materials could be ignited by the hot exhaust
system and cause a vehicle fire.
Vehicle movement can cause serious
personal injury or damage to the vehicle or
the vehicle drivetrain. Therefore, always do
the following before turning off the engine and
leaving the vehicle:
R keep your right foot on the brake pedal.
R engage the parking brake.
R shift the manual transmission to firstgear
or reverse gear R.
R shift the automatic transmission to park
position P. R
slowly release the brake pedal.
R when parked on an incline, always turn the
front wheels towards the road curb.
R turn the SmartKey in the ignition lock to
position 0and remove the SmartKey from
the ignition lock.
R take the SmartKey with you and lock the
vehicle when leaving. G
WARNING
Manual transmission: Wait until the vehicle is
stationary before removing the SmartKey
from the starter switch. The vehicle cannot be
steered when the SmartKey is removed from
the starter switch. Parking
149Driving and parking Z

Switching off the engine
Important safety notes G
WARNING
Do not turn off the engine before the vehicle
has come to a complete stop. With the engine
not running, there is no power assistance for
the brake and steering systems. In this case,
it is important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
Vehicles with manual transmission X
Shift to either first gear or reverse gear R.
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
X Apply the electric parking brake.
Vehicles with automatic transmission X
Apply the electric parking brake.
X Shift the transmission to position P.
Using the SmartKey
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
i The SmartKey can only be removed if the
transmission is in position P.
Using KEYLESS-GO
X Press the Start/Stop button (Y page 131).
The engine stops and all the indicator
lamps in the instrumen tcluster go out.
i When the driver's door is closed, this
corresponds to SmartKey position 1.When
the driver's door is open, it corresponds to
SmartKey position 0or "SmartKey
removed".
If you attempt to switch off the engine while
the selector lever is in a position other than
P, a message appears in the multifunction
display and you hear a tone. Electric parking brake
General information i
The electric parking brake performs a
function test at regular intervals while the
engine is switched off. The sounds that can
be heard while this is occurring are normal. G
WARNING
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it with
you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Children could
release the parking brake and/or shift the
automatic transmission out of park position
P, either of which could result in an accident
and/or serious personal injury. Applying/releasing manually
X
To apply: press handle 0002.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster lights up.
i The electric parking brake can also be
applied when the SmartKey is removed.
X To release: switch on the ignition.
X Pull handle 0002.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster goes out.
i The electric parking brake cannot be
released unless the SmartKey is in position
1 in the ignition lock or if the ignition has 150
ParkingDriving and parking