2012 MERCEDES-BENZ SLK-CLASS ROADSTER door lock

The DISTRONIC PLUS braking effect is
canceled and the vehicle can start moving if:
R DISTRONIC PLUS is deactivated using the
cruise control lever.
R you accelerate.
R there is a malfunction in the system or an
interruption in the power supply, e.g.
battery failure.
R the electrical system in the engine
compartment, the battery or the fuses are
tampered with.
R the battery is disconnected.
If you wish to leave the vehicle or park it,
deactivate DISTRONIC PLUS and secure the
vehicle against rolling away.
If DISTRONIC PLUS detects that the vehicle
in front is stopping, it brakes your vehicle until
it is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
i After a time, the electric parking brake
secures the vehicle and relieves the service
brake.
i Depending on the specified minimum
distance, your vehicle will come to a
standstill at a sufficient distance behind the
vehicle in front. The specified minimum
distance is set using the control on the
cruise control lever.
The electric parking brake automatically
secures the vehicle if DISTRONIC PLUS is
activated and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the hood is opened.
R a system malfunction occurs.
R the power supply is not sufficient.
If there is a malfunction in the vehicle
electronics, a warning message may also
appear in the multifunction display.
Brake ImmediatelyXImmediately depress the brake pedal firmly
until the warning message in the
multifunction display goes out. DISTRONIC
PLUS is deactivated.
Shift to 'P'
XShift the transmission to position P to
prevent the vehicle from rolling away.
DISTRONIC PLUS is deactivated. The
warning message in the multifunction
display disappears.
The horn will also sound at regular intervals if
DISTRONIC PLUS is activated and you:
R switch the engine off, open the driver's
door and remove your seat belt
R open the hood
The sounding of the horn alerts you to the fact
that the vehicle has been parked while
DISTRONIC PLUS is still activated. The sound
becomes louder if you attempt to lock the
vehicle. The vehicle is not locked until
DISTRONIC PLUS is deactivated.
i If the engine has been switched off, it
cannot be started again until DISTRONIC
PLUS has been deactivated.
Setting a speed
GWARNING
Keep in mind that it may take a brief moment
until the vehicle has made the necessary
adjustments.
Increase or decrease the set vehicle speed to
a value that the prevailing road conditions and
legal speed limits permit. Otherwise, sudden
and unexpected acceleration or deceleration
of the vehicle could cause an accident and/
or serious injury to you and others.
XPress the cruise control lever up : for a
higher speed or down ; for a lower speed.XTo adjust the speed in 1 mph
increments (1 km/h increments): brieflyDriving systems163Driving and parkingZ

multifunction display goes out. This
deactivates the HOLD function.
In vehicles with automatic transmission:
Shift to 'P' .
XShift the transmission to position P to
prevent the vehicle from rolling away.
The HOLD function is deactivated. The
warning message in the multifunction
display disappears.
A horn will also sound at regular intervals if
the HOLD function is activated and you:
R switch the engine off, open the driver's
door and remove your seat belt
R open the hood
The sounding of the horn alerts you to the fact
that the vehicle has been parked while the
HOLD function is still activated. If you attempt
to lock the vehicle, the tone becomes louder.
The vehicle is not locked until the HOLD
function is deactivated.
i If the engine has been switched off, it cant
be started again until the HOLD function
has been deactivated.
PARKTRONIC
Important safety notes
GWARNING
The PARKTRONIC is a supplemental system.
It is not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always remains with the driver.
GWARNING
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured.
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically when
you:
R switch on the ignition
R move the selector lever to position D, R or
N on vehicles with automatic transmission
R release the electric parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18km/h). It is reactivated at lower
speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front and four
sensors in the rear.:Example: sensors in the front bumper,
left-hand side
Range of the sensors
General notes
The sensors must be free of dirt, ice and
slush. Otherwise, they may not function
correctly. Clean the sensors regularly, taking
care not to scratch or damage them
( Y page 269).
Side view
170Driving systemsDriving and parking

XPress the : or 9 button to select
Ambient light .
You will see the selected setting.XPress the a button to confirm.XPress the : or 9 button to adjust the
brightness to any level from Off to Level
5 (bright).XPress the a or % button to save the
setting.
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
If you have activated the Lighting: function
and the light switch is in the c or Ã
position, the following functions are active
when it is dark:
R Surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the key. The exterior lighting switches
off when you open the driver's door.
R Exterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close
all the doors, the exterior lighting goes off
after 15 seconds.
If you activate the Surround lighting:
function, the following light up depending on
the vehicle's equipment:
R parking lamps
R front fog lamps
R low-beam headlamps
R daytime running lamps
R side marker lamps
XPress the = or ; button on the
steering wheel to select the Sett. menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Locator Lighting function.
You will see the selected setting: on or
off .XPress the a button to save the setting.Deactivating delayed switch-off of the
exterior lighting temporarily:XBefore leaving the vehicle, turn the
SmartKey to position 0 in the ignition lock.XTurn the SmartKey to position 2 in the
ignition lock and back to position 0.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
Activating/deactivating the interior
lighting delayed switch-off
If you activate the Interior lighting
delay sw. off function, the interior lighting
remains on for 20seconds after you remove
the key from the ignition lock.
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Light submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Interior lighting delay sw. off:
function.
You will see the selected setting: on or
off .XPress the a button to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
If you select the Automatic Door Lock:
function, the vehicle is centrally locked above
a speed of around 9 mph (15km/h).
i For further information on the automatic
locking feature, see ( Y page 75).
Menus and submenus193On-board computer and displaysZ

XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Vehicle submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Automatic door locks function.
You will see the selected setting: on or
off .XPress the a button to save the setting.
Activating/deactivating the acoustic
locking verification signal
If you switch on the Acoustic Lock
feedback function, an acoustic signal sounds
when you lock the vehicle.
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Vehicle submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Acoustic Lock feedback: function.
You will see the selected setting:
Activated or Deactivated .XPress the a button to save the setting.
Activating/deactivating the radar sensor
system
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS ( Y page 158)
R BAS PLUS ( Y page 57)
R PRE-SAFE ®
Brake ( Y page 62)
XPress the = or ; button on the
steering wheel to select the Sett. menu.XPress the : or 9 button to select the
Vehicle submenu.XPress a to confirm.XPress the 9 or : button to select
Radar Sensor (See Oper. Manual): .
You will see the selected setting: Enabled
or Disabled .XPress the a button to save the setting.
Convenience
Activating/deactivating the EASY-
ENTRY/EXIT feature
You can use the Easy Entry/Exit: function
to activate or deactivate the EASY ENTRY/
EXIT feature ( Y page 97).
GWARNING
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel movement, move
steering wheel adjustment lever or press one
of the memory position buttons.
Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Children could open the driver's door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Convenience submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Easy Entry/Exit: function.
You will see the selected setting: on or
off .XPress the a button to save the setting.
Switching the belt adjustment on/off
For further information on belt adjustment,
see ( Y page 51).
194Menus and submenusOn-board computer and displays

XPress the = or ; button on the
steering wheel to select the Sett. menu.XPress the : or 9 button to select the
Convenience submenu.XPress a to confirm.XPress the : or 9 button to select the
Belt Adjustment function.
You will see the selected setting: on or
off .XPress the a button to save the setting.
Switching the fold-in mirrors when
locking feature is on/off
If you switch on the Fold Mirrors in when
Locking function, the exterior mirrors fold in
when you lock the vehicle. If you unlock the
vehicle and then open a door, the exterior
mirrors fold out again.
If you have switched the function on and you
fold the exterior mirrors in using the button
on the door (Y page 99), they will not fold out
automatically. The exterior mirrors can then
only be folded out using the button on the
door.
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Convenience submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Fold mirrors in when locking:
function.
You will see the selected setting: Enabled
or Disabled .XPress the a button to save the setting.
Restoring the factory settings
For safety reasons, the Daytime Running
Lights: function in the Lights submenu is
only reset when the vehicle is stationary.
XPress the = or ; button on the
steering wheel to select the Sett. menu.XPress the : or 9 button to select the
Factory Setting submenu.XPress the a button to confirm.
The Reset All Settings? message
appears.XPress the : or 9 button to select
No or Yes .XPress the a button to confirm the
selection.
If you select Yes, the multifunction display
shows a confirmation message.
AMG menu in AMG vehicles
AMG displays
XPress the = or ; button on the
steering wheel to select the AMG menu.:Digital speedometer;Gear indicator=Upshift indicator?Engine oil temperatureACoolant temperatureBStatus display of the ECO start/stop
function ( Y page 135)
Upshift indicator UP = indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP = fades out other
messages until you have shifted up.
Menus and submenus195On-board computer and displaysZ

Display messagesPossible causes/consequences and M Solutionsh
Check Tire PressureGRisk of accident
The tire pressure in one or more tires has dropped significantly.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 315).XCheck the tire pressure. If necessary, correct the tire pressure
( Y page 301).h
Correct Tire
PressureThe tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.XCheck the tire pressures at the next opportunity. If necessary,
correct the tire pressure ( Y page 301).
Vehicle
Display messagesPossible causes/consequences and M SolutionsShift to 'P' or
'N',
to Start EngineYou have attempted to start the engine with the transmission in
position R or D.XShift the transmission to position P or N.P
Shift to 'P'A malfunction has occurred while the HOLD function or
DISTRONIC PLUS is active.
A tone may also sound at regular intervals. If you attempt to lock
the vehicle, the tone becomes louder.
You cannot start the engine.XShift the transmission to position P.
You can restart the engine.NThe trunk lid is open.XClose the trunk lid.MGRisk of accident
The hood is open.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the electric parking brake.XClose the hood.CAt least one door is open.XClose all the doors.224Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsThe roof has been opened and closed several times in a row. The
roof drive has been switched off automatically for safety reasons.
You can open and close the roof again after approximately
10 minutes.XSwitch off the ignition and turn it back on.XRepeat the opening or closing procedure ( Y page 83).¥
Check Washer FluidThe washer fluid level in the washer fluid reservoir has dropped
below the minimum.XAdd washer fluid ( Y page 263).
SmartKey
Display messagesPossible causes/consequences and M Solutions+
Key Does Not
Belong to VehicleYou have put the wrong SmartKey in the ignition lock.XUse the correct SmartKey.+
Take Your Key from
IgnitionThe SmartKey is in the ignition lock.XRemove the SmartKey.+
Obtain a New KeyThe SmartKey needs to be replaced.XVisit a qualified specialist workshop.+
Replace Key BatteryThe batteries of the KEYLESS-GO key are discharged.XChange the batteries ( Y page 71).+
Don't Forget Your
KeyThe display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.XRemember to take the KEYLESS-GO key with you when you
leave the vehicle.226Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M Solutions+
Key Not
Detected (red display
message)The KEYLESS-GO key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the electric parking brake.XLocate the KEYLESS-GO key.The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
A warning tone also sounds.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the electric parking brake.XOperate the vehicle with the SmartKey in the ignition lock.+
Key Not
Detected (White
display message)The KEYLESS-GO key cannot be detected at present.XChange the location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
XOperate the vehicle with the SmartKey in the ignition lock.+
Key Detect'd In
VehicleThe KEYLESS-GO key has been detected inside the vehicle during
locking.XRemove the KEYLESS-GO key from the vehicle.+
Remove 'Start'
Button and Insert
KeyKEYLESS-GO is temporarily malfunctioning or is defective. A
warning tone also sounds.XInsert the SmartKey into the ignition lock and turn it to the
desired position.XVisit a qualified specialist workshop.+
Close Doors to
Lock VehicleAt least one door is open. A warning tone also sounds.XClose all doors and lock the vehicle again.Display messages227On-board computer and displaysZ