2015 MERCEDES-BENZ SLK-CLASS ROADSTER Owners Manual

A warning may be given if a front wheel
passes over a lane marking. It will warn you by
means of intermittent vibration in the steer-
ing wheel for up to 1.5 second s.
Important safety notes
GWARNING
Lane Keeping Assist may not always clearly
recognize lane markings.
In this case, Lane Keeping Assist may: R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and stay in lane, in particular if
warned by Lane Keeping Assist.
GWARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is a risk of an accident.
You should always steer, brake or accelerate
yourself, in particular if warned by Lane Keep- ing Assist.
If you fail to adapt your driving style, Lane
Keeping Assist can neither reduce the risk of
an accident nor override the laws of physics.
Lane Keeping Assist cannot take into account the road, traffic and weather conditions. Lane
Keeping Assist is merely an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
The Lane Keeping Assist does not keep the
vehicle in the lane.
The system may be impaired or may not func- tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet) R
the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con-
struction work
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are strong shadows cast on the lane
Switching on Lane Keeping Assist X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
StandardorAdaptive( Y page 204).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected, the lines in the assistance graphics display( Y page 203) are shown in green. Lane
Keeping Assist is ready for use.
Standard If
Standardis selected, no warning vibration
occurs if: R you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive When
Adaptiveis selected, no warning vibra-
tion occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, e.g.
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
Driving systems191
Driving and pa rking
Z

Ryou steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when nec-
essary and in good time if you cross the lane marking, the system recognizes certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very wide lanes, e.g. a high-way.
R the system recognizes solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend.
192Driving syste ms
Driving and parking

Useful information............................194
Important safety notes .....................194
Displays and operation .....................194
Menus and submenus ......................197
Display messages ............................. 212
Warning and indicator lamps ...........244
193
On-board computer and displays

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

Left control panel
= ;RCalls up the menu and menu bar
9 :Press briefly:
R Scrolls in lists
R Selects a submenu or function
R In the
Audiomenu: selects a
stored station, an audio track or
a video scene
R In the
Tel(telephone) menu:
switches to the phone book and
selects a name or telephone
number
9 :Press and hold:
R In the
Audiomenu: selects the
previous/next station or selects
an audio track or a video scene
using rapid scrolling
R In the
Tel(Telephone) menu:
starts rapid scrolling if the phone
book is open
aR Confirms a selection/display
message
R In the
Tel(telephone) menu:
switches to the telephone book
and starts dialing the selected
number
R In the
Audiomenu: stops the
station search function at the
desired station
Right control panel
~R Rejects or ends a call
R Exits phone book/redial mem- ory
6RMakes or accepts a call
R Switches to the redial memory
W XRAdjusts the volume
8RMute
Back button
%Press briefly:
R Back
R Switches off the Voice Control
System (see the separate oper-
ating instructions)
R Hides display messages/calls
up the last
Tripmenu function
used
R Exits the telephone book/redial
memory
%Press and hold:
R Calls up the standard display in
the
Tripmenu
Multifunction display
Example: vehicles with automatic transmission :
Transmission position ( Ypage 151)
;Drive program ( Ypage 151)
=Text field
?Menu bar
196Displays and operation
On-board computer and displays

ATime
BOutside temperature or speed (Y page 205)
Text field =shows the selected menu or
submenu as well as display messages.
X To display menu bar ?: press the =
or ; button on the steering wheel.
Menu bar ?disappears after a few sec-
onds of inactivity.
iYou can set the time using COMAND (see
the separate operating instructions).
Vehicles with manual transmission:
instead of transmission position :and drive
program ;, the time and the outside tem-
perature or speed are shown.
The following messages may appear in the
multifunction display: Z Gearshift recommendation for man-
ual transmission ( Ypage 151) or
when shifting manually (automatic
transmission) ( Ypage 154)
X j Y
Parking Guidance ( Ypage 185)
CRUISECruise control ( Ypage 169)
_ Adaptive Highbeam Assist (Y page 113)
è ECO start/stop function(Y page 143)
ë HOLD function ( Ypage 180)
Menus and submenus
Menu overview
Press the =or; button on the steer-
ing wheel to call up the menu bar and select a
menu.
Operating the on-board computer ( Y page 195).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R
Tripmenu ( Ypage 197)
R
Navimenu (navigation instructions)
( Y page 199) R
Audiomenu (
Ypage 200)
R
Telmenu (telephone) ( Ypage 201)
R
DriveAssistmenu (assistance)
( Y page 202)
R
Servmenu ( Ypage 204)
R
Settmenu (settings) ( Ypage 204)
R
AMGmenu in AMG vehicles ( Ypage 208)
Trip menu
Standard display
X Press and hold the %button on the
steering wheel until the
Tripmenu with
trip odometer :and odometer ;is
shown.
Trip computer "From Start" or "From Reset"
Example: trip computer "From Start" :
Distance
;Driving time
=Average speed
?Average fuel consumption
X Press the =or; button on the steer-
ing wheel to select the
Tripmenu.
X Press the 9or: button to select
From StartorFrom Reset.
The values in the
From Startsubmenu are
calculated from the start of a journey whilst
Menus and submenus197
On-board computer and displays
Z

the values in theFrom Resetsubmenu are
calculated from the last time the submenu
was reset ( Ypage 198).
The
From Starttrip computer is automati-
cally reset when:
R the ignition has been switched off for more
than four hours.
R 999 hours have been exceeded.
R 9,999 miles have been exceeded.
The
From Resettrip computer is automati-
cally reset if the value exceeds 9,999 hours or 99,999 miles.
ECO display
Example: ECO display
X Press the =or; button on the steer-
ing wheel to select the
Tripmenu.
X Press the 9or: button to select
ECO DISPLAY.
If the ignition remains switched off for longer than four hours, the ECO display will be auto-
matically reset.
For further information on the ECO display,
see ( Ypage 165).
Displaying the range and current fuel
consumption
For AMG vehicles, only the approximate
range will be displayed. X
Press the =or; button on the steer-
ing wheel to select the
Tripmenu.
X Press the 9or: button to select the
current fuel consumption and approximate range.
The approximate range that can be covered
depends on the fuel level and your current
driving style. If there is only a small amount of
fuel left in the fuel tank, the display shows a
vehicle being refueled Cinstead of the
range.
Digital speedometer
X Press the =or; button on the steer-
ing wheel to select the
Tripmenu.
X Press the 9or: button to select
digital speedometer ;.
A gearshift recommendation :Zmay also
be displayed.
Observe the information on gearshift rec-
ommendation :for manual transmission
( Y page 151) or when shifting manually
(automatic transmission) ( Ypage 154).
AMG vehicles: a gearshift recommendation
appears in the status area of the multifunc-
tion display and not in the display of the
digital speedometer.
Resetting values
Example: resetting the trip computer "From Start"
198Menus and submenus
On-board computer and displays