2015 MERCEDES-BENZ SLK-CLASS ROADSTER engine

Brake ImmediatelyBrake Immediately
XImmediately depress the brake firmly until
the warning message in the multifunction
display goes out.
The HOLD function is deactivated.
In vehicles with automatic transmission:
Shift to 'P'Shift to 'P'.
X Shift the transmission to position Pto pre-
vent the vehicle from rolling away.
The HOLD function is deactivated. The
warning message in the multifunction dis-
play disappears.
The 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 func- tion is deactivated.
iIf the engine has been switched off, it
cannot be started again until the HOLD
function has been deactivated.
PARKTRONIC
Important safety notes
PARKTRONIC is an electronic parking aid with ultrasonic sensors. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is only an aid. It is not a replace-
ment for your attention to your immediate
surroundings. You are always responsible for
safe maneuvering, parking and exiting a park-
ing space. When maneuvering, parking or
pulling out of a parking space, make sure that there are no persons, animals or objects in
the area in which you are maneuvering.
!When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of
the vehicle. You could damage the vehicle
or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
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 (18 km/h). It is reactivated at lowerspeeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper and four sensors in the rear bumper.
Range of the sensors
General notes
PARKTRONIC does not take objects into con- sideration that are:
R below the detection range, e.g. people, ani-
mals or objects.
R above the detection range, e.g. overhang-
ing loads, truck overhangs or loadingramps.
182Driving systems
Driving and parking

The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the center air vents.
The warning display for the rear area is loca-
ted between the roll bars.
The warning display for each side of the vehi- cle is divided into five yellow and two red seg-ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
The selector lever position or selected auto-
matic transmission position and the direction
in which the vehicle is rolling determine which
warning display is active when the engine is
running.
Manual transmission:
Gear lever posi- tionWarning display
Forwards gear or
NeutralFront area activated
Reverse gear or
the vehicle is rolling backwardsRear and front areas
activated
Automatic transmission:
Transmission positionWarning display
DFront area activated
R ,N or the vehicle
is rolling back- wardsRear and front areas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle. From the:
R sixth segment onwards, you will hear an
intermittent warning tone for approx-
imately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
:Indicator lamp
;Deactivates/activates PARKTRONIC
If indicator lamp :is on then PARKTRONIC is
deactivated. Parking Guidance is also deacti- vated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position 2in
the ignition lock.
184Driving systems
Driving and parking

XManeuver if necessary.
X Always observe the warning messages dis-
played by PARKTRONIC ( Ypage 183).
Canceling Parking Guidance
X
Press the PARKTRONIC button on the cen-
ter console ( Ypage 184).
Parking Guidance is canceled immediately
and PARKTRONIC is deactivated.
Parking Guidance is canceled automatically if it is no longer possible to guide you into the
parking space, or if a malfunction occurs.
The parking space symbol goes out and a
warning tone sounds. The
Parking GuidZ
anceCanceledmessage appears in the mul-
tifunction display.
ATTENTION ASSIST
Important safety notes
ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways.
It is active in the range between 50 mph
(80 km/h) and 112 mph (180 km/h).
If ATTENTION ASSIST detects typical indica-
tors of fatigue or increasing lapses in con-
centration on the part of the driver, it sug-
gests you take a break.
ATTENTION ASSIST assesses your level of
fatigue or lapses in concentration by taking
the following criteria into account: R your personal driving style, e.g. steering
characteristics
R journey details, e.g. time of day and length
of journey
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
R if the road condition is poor, e.g. if the sur-
face is uneven or if there are potholes
R if there is a strong side wind R
if you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
R if you are predominantly driving slower
than 50 mph (80 km/h) or faster than
112 mph (180 km/h)
R if you are currently using COMAND or mak-
ing a telephone call with it
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
ATTENTION ASSIST is only an aid to the
driver. It might not always recognize fatigue
or increasing inattentiveness in time or fail to recognize them at all. The system is not a
substitute for a well-rested and attentivedriver.
Warning and display messages in the
multifunction display
X Activate ATTENTION ASSIST using the on-
board computer ( Ypage 203).
If ATTENTION ASSIST is active, you will be
warned no sooner than 20 minutes after
your journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Take a Break!
message appears in the multifunction dis-
play.
X If necessary, take a break.
X Press the aor% button to confirm
the message.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
still detects increasing lapses in concentra-
tion, you will be warned again after
15 minutes at the earliest.
ATTENTION ASSIST is reset when you con-
tinue your journey and starts assessing your
tiredness again if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break.
188Driving systems
Driving and parking

Useful information
iThis Operator's Manual describes all
models and all standard and optional equip- ment 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.
iRead the information on qualified special-
ist workshops ( Ypage 25).
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating the on-board computer.
GWARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-ately.
The on-board computer only shows messages
or warnings from certain systems in the mul- tifunction display. You should therefore make sure your vehicle is operating safely at all
times.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration (
Ypage 31).
Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is on the bottom left of the instrument cluster ( Ypage 31).
X Turn the brightness control knob counter-
clockwise or clockwise.
If the light switch is set to Ã,T or
L , the brightness is dependent upon
the brightness of the ambient light.
iThe light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not lit.
Coolant temperature display
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!A display message is shown if the coolant
temperature is too high.
194Displays and operation
On-board computer and displays

If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side( Y page 31).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †).
Tachometer
!
Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul- tifunction display ( Ypage 196).
Changes in the outside temperature are dis-
played after a short delay.
Speedometer with segments
The speedometer is divided into segments
only on vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available.
R DISTRONIC PLUS activated ( Ypage 171):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front: The segments between the speed of the
vehicle in front and the stored speed lightup.
Operating the on-board computer
Overview
:Multifunction display
;Right control panel
=Left control panel
X To activate the on-board computer: turn
the SmartKey to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel.
Displays and operation195
On-board computer and displays
Z

Activating/deactivating surround light-
ing and exterior lighting delayed switch-off
X Press the =or; button on the steer-
ing wheel to select the
Sett.menu.
X Press the :or9 button to select the
Lightsubmenu.
X Press ato confirm.
X Press the :or9 button to select the
Surround Lightingfunction.
When the
Surround Lightingfunction is
activated, the light cone and the area
around the vehicle are displayed in orange
in the multifunction display.
X Press the abutton to save the setting.
Deactivating delayed switch-off of the exte-
rior lighting temporarily: X Before leaving the vehicle, turn the Smart-
Key to position 0in the ignition lock.
X Turn the SmartKey to position 2in the igni-
tion lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
If you have activated the
Surround LightZ
ingfunction and the light switch is set to
à , the following functions are activated
when it is dark:
R surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated( Y page 108).
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 and the trunk lid, the exterior
lighting goes off after 15 seconds.
iDepending on your vehicle's equipment,
when the surround lighting and delayed switch-off exterior lighting are on, the fol-
lowing light up:
R Parking lamps
R Front fog lamps
R Low-beam headlamps
R Daytime running lamps
R Side marker lamps
R Surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the
Interior Lighting
Delayfunction, the interior lighting remains
on for 20 seconds after you remove the
SmartKey from the ignition lock.
X Press the =or; button on the steer-
ing wheel to select the
Settmenu.
X Press the :or9 button to select the
Lightssubmenu.
X Press ato confirm.
X Press the :or9 button to select the
Interior Lighting Delayfunction.
If the
InteriorLightingDelayfunction
has been switched on, the vehicle interior is
displayed in orange in the multifunction
display.
X Press the abutton to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
X Press the =or; button on the steer-
ing wheel to select the
Settmenu.
X Press the :or9 button to select the
Vehiclesubmenu.
X Press ato confirm.
X Press the :or9 button to select the
Automatic Door Lockfunction.
When the
AutomaticDoorLockfunction
is activated, the left-hand vehicle door is
displayed in orange in the multifunction
display.
X Press the abutton to save the setting.
206Menus and submenus
On-board computer and displays

XPress the :or9 button to select the
Belt Adjustmentfunction.
When the
Belt Adjustmentfunction is
activated, the vehicle seat belt is displayed in orange in the multifunction display.
X Press the abutton to save the setting.
For further information on belt adjustment,
see ( Ypage 45).
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available when the vehi-
cle is equipped with the electrical fold-in func-
tion.
This function is only available in Canada.
When you activate the
Auto.MirrorFoldZ
ingfunction, the exterior mirrors are folded
in when the vehicle is locked.
If you unlock the vehicle and then open the
driver's or front-passenger door, the exterior
mirrors fold out again.
If you have switched on the
Auto. Mirror
Foldingfunction and you fold in the exterior
mirrors using the button on the door ( Y page 104), they will not fold out automat-
ically. The exterior mirrors can then only be
folded out using the button on the door.
X Press the =or; button on the steer-
ing wheel to select the
Sett.menu.
X Press the :or9 button to select the
Conveniencesubmenu.
X Press ato confirm.
X Press :or9 to select the
Auto.
Mirror Foldingfunction.
If the
Auto. Mirror Foldingfunction is
activated, the vehicle's exterior mirror is
displayed in orange in the multifunctiondisplay.
X Press the abutton to save the setting.
Restoring the factory settings
X
Press the =or; button on the steer-
ing wheel to select the
Sett.menu.
X Press the :or9 button to select the
Factory Settingsubmenu.
X Press ato confirm.
The
Reset All Settings?message
appears.
X Press the :or9 button to select
No
orYes.
X Press the abutton to confirm the selec-
tion.
If you have selected
Yes, the multifunction
display shows a confirmation message.
For safety reasons, the
Daytime Running
Lightsfunction in theLightsubmenu is only
reset if the vehicle is stationary.
AMG menu in AMG vehicles
AMG displays
:Digital speedometer
;Gear indicator
=Upshift indicator
?Engine oil temperature
ACoolant temperature
BTransmission fluid temperature
X Press =or; on the steering wheel
to select the
AMGmenu.
Upshift indicator: upshift indicator
UP=
indicates that the engine has reached the
overrevving range when in the manual driveprogram.
Engine/transmission oil temperature:
when the engine and transmission are at nor-
mal operating temperature, oil tempera-
208Menus and submenus
On-board computer and displays

ture?and Bare displayed in white in the
multifunction display.
If the multifunction display shows oil temper- ature ?orB in blue, the engine or the
transmission are not yet at normal operating
temperature. Avoid driving at full engine out-
put during this time.
SETUP
:Drive program (C/S/M)
;ESP ®
mode (ON/OFF) or SPORT handling
mode (
SPORT)
SETUP shows the drive program, the ESP ®
(Electronic Stability Program) mode and the
SPORT handling mode. X Press the =or; button on the steer-
ing wheel to select the
AMGmenu.
X Press the 9button repeatedly until
SETUP is displayed.
RACETIMER
Displaying and starting RACETIMER
The RACETIMER is only intended for use on a closed race circuit. Do not use the function on
public roads.
:Lap
;RACETIMER You can start the RACETIMER when the
engine is running or if the SmartKey is in posi-
tion 2in the ignition lock.
X Press =or; on the steering wheel
to select the
AMGmenu.
X Press the 9button repeatedly until the
RACETIMER is shown.
X To start: press the abutton to start the
RACETIMER.
Displaying the intermediate time
X Press the =or; button to select
Interm. Time.
X Press ato confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap
:RACETIMER
;Fastest lap time (best lap)
=Lap
X Press ato confirm
New Lap.
iIt is possible to store a maximum of six-
teen laps. The 16th lap can only be com-
pleted with
Finish Lap.
Menus and submenus209
On-board computer and displays
Z