2012 MERCEDES-BENZ SLK-CLASS ROADSTER fuel

Instrument cluster
Displays and controls
FunctionPage:Speedometer with
segments
181
;Fuel gauge=Tachometer181FunctionPage?Coolant temperature181AMultifunction display183BInstrument lighting180Instrument cluster27At a glance

Warning and indicator lampsFunctionPage:L Low-beam
headlamps
105
;K High-beam
headlamps
107
=÷ ESP®231?Electric parking brake (red)229F
(USA only)! (Canada only)A! Electric parking brake
(yellow)
229
B· Distance warning237C#! Turn signals107Dh Tire pressure monitor238E6 SRS233FunctionPageF7 Seat belt228GM SPORT handling
mode in AMG vehicles
232
H? Coolant235IR Rear fog lamp106JN Front fog lamps106K; Engine Check234L8 Reserve fuel234Må ESP®
OFF231N! ABS230OBrakes229$ (USA only)J (Canada only)28Instrument clusterAt a glance

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 23).
SmartKey
Important safety notes
GWARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts.GWARNING
If a key ring is too heavy or too large, the
weight acting on the key could cause it to turn
in the ignition lock or catch on the steering
wheel. This could cause the engine to be
switched off suddenly. You may lose control
of the vehicle and cause an accident. Do not
attach any heavy or large key rings to the key
that is inserted in the ignition.
General notes
If you cannot lock or unlock the vehicle with
the SmartKey, either the battery in the
SmartKey is discharged, the SmartKey is
faulty or the starter battery is discharged.
XCheck the battery in the SmartKey and
replace it if necessary ( Y page 71).XUnlock the driver's door using the
mechanical key ( Y page 76).XLock the vehicle using the mechanical key
( Y page 76).XHave the starter battery and the battery
contacts checked at a qualified specialist
workshop.
If the SmartKey is faulty, contact Roadside
Assistance or a qualified specialist workshop.
SmartKey functions
The SmartKey centrally locks/unlocks:
R the doors
R the trunk lid
R the glove box
R the stowage compartment in the center
console
R the fuel filler flap
68SmartKeyOpening/closing

If you pull on the handle of the trunk lid, only
the trunk of the vehicle is unlocked.
Changing the settings of the locking
system
You can change the settings of the locking
system so that when unlocking, only the
driver's door, the lockable stowage
compartments in the vehicle interior and the
fuel filler flap are unlocked. This is useful if
you frequently travel on your own.
XTo change the setting: press and hold
down the % and & buttons
simultaneously for approximately
six seconds until the battery check lamp
flashes twice ( Y page 71).
i
If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the & or % button
locks or unlocks the vehicle.
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.XTo unlock centrally: press the %
button twice.XTo lock centrally: press the & button.
The KEYLESS-GO function is changed as
follows:
XTo unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.XTo unlock centrally: touch the inner
surface of the front-passenger door handle.XTo lock centrally: touch the outer sensor
surface on one of the door handles.
Restoring the factory settings
XPress the % and & buttons
simultaneously for approximately
six seconds until the battery check lamp
flashes twice.Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
( Y page 65).
There are several ways to turn off the alarm:
XTo turn the alarm off with the
SmartKey: press the % or & button
on the SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
XTo unlock the fuel filler flap: insert the
SmartKey in the ignition lock.
Removing the mechanical key
70SmartKeyOpening/closing

Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked.
Only open the door when the traffic situation
permits.
If the vehicle was previously locked with the
SmartKey or with KEYLESS-GO, opening the
vehicle from the inside will activate the anti-
theft alarm system. Switch off the alarm
( Y page 65).XPull door handle ;.
If the door is locked, locking knob : pops
up. The door is unlocked and can be
opened.
i When a door is opened, the side window
on that side opens slightly. When the door
is closed, the side window closes again.
! The side windows will not open/close if
the battery is discharged or if the side
windows have iced up. It will then not be
possible to close the door. Do not attempt
to force the door closed. You could
otherwise damage the door or the side
window.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside.
The central locking/unlocking button does
not lock or unlock the fuel filler flap or the
stowage compartments, such as the glove
box.
i You cannot unlock the vehicle centrally
from the inside if the vehicle has been
locked with the SmartKey or KEYLESS-GO.XTo unlock: press button :.XTo lock: press button ;.
If all the doors are closed, the vehicle locks.
You can open a door from inside the vehicle
even if it has been locked. Only open the door
when the traffic situation permits.
If the vehicle has been locked with the central
locking button:
R and the SmartKey is set to its factory
setting, the entire vehicle is unlocked if a
door is opened from the inside
R and the SmartKey is set to an individual
setting, only the door that is opened from
inside the vehicle is unlocked.
Automatic locking feature
When the ignition is switched on and the
wheels of the vehicle are turning at a speed
of more than 9 mph (15 km/h), the vehicle
locks automatically.
You could therefore be locked out when:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is being tested on a
dynamometer.
Doors75Opening/closingZ

iIf you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed.
Trunk
Important safety notes
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
GWARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts.
GWARNING
Do not carry heavy or hard objects in the
passenger compartment or trunk unless they
are firmly secured in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accidentGWARNING
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter the vehicle interior resulting
in unconsciousness and death.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
To open the trunk lid completely, a minimum
clearance of 5.90 ft (1.80 m) above the
ground is necessary.
The trunk lid can be:
R opened and closed manually from outside
R opened automatically from outside
R locked separately
R unlocked with the mechanical key
R opened with the emergency release button
Opening and closing manually
Opening
You can only unlock the trunk lid when the
vehicle is stationary and the roof is fully
opened or closed.
XPress the % button on the SmartKey.Trunk77Opening/closingZ

Useful information ............................130
Breaking-in notes .............................. 130
Driving ............................................... 130
Manual transmission ........................139
Automatic transmission ...................140
Refueling ............................................ 146
Parking ............................................... 149
Driving tips ........................................ 152
Driving systems ................................ 156129Driving and parking

ECO start/stop function
Important safety notesGWARNING
If the ECO symbol appears in the
multifunction display when the engine is
switched off, the engine was switched off
automatically. However, all vehicle systems
remain active. If you open the door, unfasten
your seat belt or remove your foot from the
brake pedal, the engine will automatically
start. The vehicle may begin moving. There is
a risk of an accident.
To prevent the vehicle from pulling away
unintentionally, only remove your foot from
the brake pedal if you want to drive on.
Do not leave the vehicle until you have
switched off the ignition and secured the
vehicle to prevent it from rolling away.
! Always switch the ignition off and take the
key with you when leaving the vehicle.
General notes
The ECO start/stop function is only available
for the SLK 55 AMG.
The ECO start/stop function is only available
in drive program C.
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.
The system is operational if all conditions for
automatic engine switch-off have been
fulfilled ( Y page 135) and the ¤ 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 are fulfilled, the border of the ECO
symbol disappears in the multifunction
display. In addition, the Stop/Start
inactive message is shown in the AMG
menu in the multifunction display.
If the ECO start/stop function is deactivated
( Y page 136), the ¤ symbol and the
Stop/Start active or Stop/Start
inactive message are not shown.
i If automatic cylinder shut-off is active in
drive program C, the number of active
cylinders 4 is also shown in the ¤
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
case, the number of active cylinders 8 is
shown in the ¤ symbol.
Automatic engine switch-off
The ECO start/stop function switches the
engine off automatically if the vehicle is
braked to a standstill and the brake remains
depressed with the transmission in position
D or N.
The engine is only switched off if:
R the vehicle is at a standstill.
R the outside temperature is within the range
which is suitable for the system.
R the engine is at normal operating
temperature.
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 no engine-relevant diagnostics are active.
R the front door is closed and the seat belt is
fastened.
i You can still activate the HOLD function
when the 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
Driving135Driving and parkingZ