lane assist MERCEDES-BENZ SLK ROADSTER 2014 Owners Manual

Driving Assistance packag
e........... 194
HOLD function ............................... 183
Lane Keeping Assist ...................... 195
Parking Guidance ........................... 188
PARKTRONIC ................................. 185
Speed Limit Assist ......................... 192
SPEEDTRONIC ............................... 180
Driving tips
Aquaplaning ................................... 167
Automatic transmission ................. 153
Brakes ........................................... 166
DISTRONIC PLUS ........................... 179
Downhill gradient ........................... 166
Driving abroad ............................... 110
Driving in winter ............................. 168
Driving on flooded roads ................ 168
Driving on wet roads ...................... 167
Fuel ................................................ 165
General .......................................... 165
Icy road surfaces ........................... 168
Limited braking efficiency on sal-
ted roads ....................................... 167
New brake pads/linings ................ 167
Running-in tips ............................... 140
Snow chains .................................. 317
Symmetrical dipped beam ............. 110
Wet road surface ........................... 166
DVD video
Operating (on-board computer) ..... 207
Dynamic handling package
Function/note s............................. 182 E
EASY-ENTRY feature Activating/deactivating ................. 217
Function/note s............................. 101
EASY-EXIT feature
Crash-responsive ........................... 102
Function/note s............................. 101
Switching on/of f........................... 217
EBD (electronic brake force distri-
bution)
Display message ............................ 225
Function/note s................................ 66
ECO display
Function/note s............................. 165
On-board computer ....................... 204 ECO start/stop function
Automatic engine start .................. 147
Automatic engine switch-off .......... 146
Deactivating/activating ................. 148
General information ....................... 146
Important safety notes .................. 145
Introduction ................................... 145
Electrical fuses
see Fuses
Electromagnetic compatibility
Declaration of conformity ................ 23
Electronic Stability Program
see ESP® (Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 51
Emergency key
Unlocking the driver's door .............. 80
Emergency key element
Function/note s................................ 74
Locking vehicle ................................ 80
Emergency release
Driver's door .................................... 80
Emergency spare wheel
General notes ................................ 334
Important safety notes .................. 334
Inflating the collapsible spare
wheel ............................................. 335
Removing ....................................... 334
Stowing .......................................... 335
Technical data ............................... 337
Emergency unlocking
Vehicle ............................................. 80
Engine
Display message ............................ 234
ECO start/stop function ................ 145
Engine number ............................... 342
Jump-starting ................................. 304
Running irregularly ......................... 150
Starting problems .......................... 150
Starting the engine with the key .... 144
Starting with KEYLESS GO ............. 144
Stopping ........................................ 162
Tow-starting (vehicle) ..................... 309
Warning lamp (engine diagnos-
tics) ............................................... 257
Engine electronics
Notes ............................................. 340 Index
9

Display message ............................ 233
Overview ........................................ 114
Setting the dipped-beam head-
lamps for driving on the right/left .. 214
Interior lighting
Automatic control syste m.............. 117
Delayed switch-off (on-board
computer) ...................................... 216
Emergency lighting ........................ 117
Manual control ............................... 117
Overview ........................................ 116
Reading lamp ................................. 116
Setting the ambient lighting
brightness (on-board computer) .... 215
Interior motion sensor
Deactivating ..................................... 70
Function ........................................... 69
Priming ............................................ 70
Switching off .................................... 70 J
Jack Storage location ............................ 295
Using ............................................. 325
Jump starting (engine) ...................... 304K
Key Changing the battery ....................... 75
Checking the battery ....................... 75
Convenience opening feature .......... 85
Display message ............................ 249
Door central locking/unlocking ....... 73
Emergency key element ................... 74
Important safety notes .................... 72
Loss ................................................. 77
Modifying the programming ............. 74
Opening/closing the roo f................ 89
Overview .......................................... 72
Positions (ignition lock) ................. 141
Problem (malfunction) ..................... 77
Starting the engine ........................ 144
Key positions
Key ................................................ 141
KEYLESS GO .................................. 141
KEYLESS-GO
Convenience closing ........................ 85 Display message ............................ 249
Locking ............................................ 73
Removing the Start/Stop button ... 143
Start/Stop button .......................... 141
Starting the engine ........................ 144
Unlocking ......................................... 73
Kickdown
Driving tip s.................................... 153
Manual drive progra m.................... 157 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 212
Display message ............................ 238
Function/information .................... 195
Lap time (RACETIMER) ...................... 219
Licence plate lamp (display mes-
sage) ................................................... 232
Light sensor (display message) ....... 233
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 214
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 216
Active light function ....................... 114
Automatic headlamp mode ............ 111
Cornering light function ................. 114
Dipped-beam headlamp s............... 111
Driving abroad ............................... 110
Foglamps ....................................... 111
Foglamps (extended range) ........... 115
Hazard warning lamps ................... 113
Headlamp flashe r........................... 113
Headlamp range ............................ 112
Light switch ................................... 110
Main-beam headlamp s................... 113
Misted up headlamp s.................... 116
Motorway mode ............................. 114
Parking lamps ................................ 112
Rear foglamp ................................. 112
Setting the ambient lighting
brightness (on-board computer) .... 215
Side lamps ..................................... 112 12
Index

Activating
X Briefly pull the cruise control lever towards
you ?, or press it up :or down A.
DISTRONIC PLUS is activated.
X Keep the cruise control lever pressed up :
or down Auntil the desired speed has
been set.
X Remove your foot from the accelerator
pedal.
Your vehicle adapts its speed to that of the vehicle in front, but only up to the desired
stored speed.
If the vehicle in front has been detected and is
shown in the multifunction display, you can
also activate DISTRONIC PLUS when driving
at speeds below 30 km/h. If the vehicle in
front is no longer detected and displayed, for
example because it has changed lanes, DIS-
TRONIC PLUS is deactivated. You will hear a
warning tone if this is the case.
i If you do not fully release the accelerator
pedal, the DISTRONIC PLUS inactive
DISTRONIC PLUS inactive
message appears in the multifunction dis-
play. The set distance to a slower-moving
vehicle in front will then not be maintained. You will be driving at the speed you deter-
mine by the position of the accelerator
pedal.
Pulling away and driving
DISTRONIC PLUS is deactivated when you
depress the brake, except when the vehicle is
stationary.
X If the vehicle in front pulls away: remove
your foot from the brake pedal.
X Briefly pull the cruise control lever towards
you ?.
or
X Accelerate briefly.
Your vehicle pulls away and adapts its
speed to that of the vehicle in front.
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control. If DISTRONIC PLUS detects that the vehicle in
front has slowed down, it brakes your vehicle.
It maintains the preset distance to the vehicle
in front.
If DISTRONIC PLUS detects that there is a risk of a collision, you will be warned visually and
acoustically. Without your intervention, DIS-
TRONIC PLUS cannot prevent a collision. An
intermittent warning tone will then sound and the distance warning lamp will light up in theinstrument cluster. Brake immediately to
increase the distance to the vehicle driving in
front, or take evasive action, provided it is
safe to do so.
If DISTRONIC PLUS detects a faster-moving
vehicle in front, it increases the driving speed.
However, the vehicle is only accelerated up to the speed you have stored.
Changing lanes
If you wish to move into the overtaking lane (in countries where traffic drives on the right, thepassing lane is the left-hand lane), DIS-
TRONIC PLUS assists you if:
R you are driving faster than 60 km/h
R DISTRONIC PLUS is maintaining the dis-
tance to a vehicle in front
R you have switched on the corresponding
turn signal
R DISTRONIC PLUS does not detect a danger
of collision
If these conditions are met, your vehicle is
accelerated. Acceleration will be interrupted
if changing lanes takes too long or if the dis-
tance between your vehicle and the vehicle in front becomes too small.
Vehicles with COMAND Online
i The following function is not operational
in all countries. 174
Driving systemsDriving and pa
rking

X
Manoeuvre if necessary.
X Always observe the warning messages dis-
played by PARKTRONIC (Y page 186).
Cancelling Parking Guidance X
Press the PARKTRONIC button on the
centre console (Y page 187).
Parking Guidance is cancelled immediately
and PARKTRONIC is deactivated.
Parking Guidance is cancelled 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 Guid‐
Parking Guid‐
ance cancelled ance cancelled message appears in the
multifunction display. ATTENTION ASSIST
Important safety notes ATTENTION ASSIST helps you during long,
monotonous journeys such as on motorways and trunk roads. It is active in the 80 km/h to
180 km/h range.
If ATTENTION ASSIST detects typical indica-
tors of fatigue or increasing lapses in con-
centration on the part of the driver, it sug-
gests taking 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-related parameters, e.g. time of
day, 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 80 km/h or faster than 180 km/h
R if you are currently using COMAND Online
or making 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. It may not
always detect fatigue or lapses in concentra-
tion until too late, or may not detect them at
all. The system is not a substitute for a well-
rested and attentive driver.
Warning and display messages in the
black and white multifunction display X
Activate ATTENTION ASSIST using the on-
board computer (Y page 212).
Symbol :appears in the multifunction
display.
If ATTENTION ASSIST is active, you will be
warned no sooner than 20 minutes after your
journey has begun. You then hear an inter-
mittent warning tone twice and the Atten‐
Atten‐
tion Assist: Take a break! tion Assist: Take a break! message
appears in the multifunction display.
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 Driving systems
191Driving and parking Z

R
the traffic signs are poorly illuminated
R there are ambiguous traffic signs, for
instance near roadworks or on multi-lane
roads
Information in the colour multifunction
display Briefly showing detected traffic signs
X Activate the Speed Limit Assist warning
function using the on-board computer
(Y page 211).
When you activate the Speed Limit Assist
warning function, a traffic sign indicating the
speed limit or end of speed limit zone may
appear in the multifunction display. The traffic
sign appears for approximately five seconds
as soon as it is detected. Any other informa-
tion in the multifunction display is hidden for
this period.
Permanently showing detected traffic
signs :
Maximum permissible speed (example)
; Maximum permissible speed for vehicles
subject to the restriction in the additional
sign (example)
= Additional character in fog
? Speed Limit Assist is available and
switched on X
Display the assistance graphic using the
on-board computer (Y page 210).
A traffic sign indicating a speed limit or the
end of a speed limit appears in the multi-
function display as soon as it is detected.
Traffic sign :indicating a speed limit is gen-
erally displayed until:
R a traffic sign indicating the end of the speed
limit is detected
R you make a turn
R you leave or enter a town
R the road type changes (e.g. motorway,
country road)
R you have travelled a certain minimum dis-
tance without the traffic sign being repea-
ted or detected again
Information in the black and white mul-
tifunction display Briefly showing detected traffic signs
:
Traffic sign indicating a speed limit or the
end of a speed limit
; Speed Limit Assist is available and the
warning function is switched on in the on-
board computer
= Units used in the traffic sign displayed
X Activate the Speed Limit Assist warning
function using the on-board computer
(Y page 211).
When you activate the Speed Limit Assist
warning function, a traffic sign indicating the
speed limit or end of speed limit zone may
appear in the multifunction display. The traffic Driving systems
193Driving and parking Z

sign appears for approximately five seconds
as soon as it is detected. Any other informa-
tion in the multifunction display is hidden for
this period.
Permanently showing detected traffic
signs
X Display Speed Limit Assist using the on-
board computer (Y page 211).
If Speed Limit Assist is selected in the on-
board computer, traffic sign :indicating the
speed limit or end of a speed limit zone
appears in the multifunction display as soon
as it is detected.
Traffic sign :indicating a speed limit is gen-
erally displayed until:
R a traffic sign indicating the end of the speed
limit is detected
R you make a turn
R you leave or enter a town
R the road type changes (e.g. motorway,
country road)
R you have travelled a certain minimum dis-
tance without the traffic sign being repea-
ted or detected again Driving Assistance package
General notes The Driving Assistance package consists of
DISTRONIC PLUS (Y
page 171), Blind Spot
Assist (Y page 194) and Lane Keeping Assist
(Y page 195).
Blind Spot Assist General notes
Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from speeds of
30 km/h. A warning display in the exterior
mirrors draws your attention to vehicles
detected in the monitored area. If you then
switch on the corresponding turn signal to
change lane, you will also receive an optical and audible collision warning. For monitoring,
Blind Spot Assist uses sensors in the rear
bumper.
For Blind Spot Assist to assist you when driv-
ing, the radar sensor system must be opera-
tional.
Important safety notes G
WARNING
Blind Spot Assist does not react to vehicles:
R overtaken too closely on the side, placing
them in the blind spot area
R when the difference in the speed of
approach and overtaking is too great
As a result, Blind Spot Assist cannot warn
drivers in these situations. There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and maintain a safe distance at the side
of the vehicle.
Monitoring range of the sensors Blind Spot Assist monitors the area up to
3.0 mbehind your vehicle and directly next to
your vehicle, as shown in the diagram. For this
purpose, Blind Spot Assist uses radar sensors in the rear bumper.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not 194
Driving systemsDriving and parking

driving in the middle of their lane. This may be
the case if there are vehicles at the edge of
their lane nearest your vehicle.
Due to the nature of the system:
R warnings may be issued in error when driv-
ing close to crash barriers or similar solid
lane borders
R warnings may be interrupted when driving
alongside long vehicles, for example lor-
ries, for a prolonged time
The two radar sensors for Blind Spot Assist
are integrated into the sides of the rear
bumper. Make sure that the bumper is free of dirt, ice or slush in the vicinity of the sensors.
The sensors must not be covered, for exam-
ple by cycle racks or overhanging loads. Fol-
lowing a severe impact or in the event of dam- age to the bumpers, have the function of the
sensors checked at a qualified specialist
workshop. Blind Spot Assist may otherwise
not work properly.
Indicator and warning display :
Yellow indicator lamp/red warning lamp
If Blind Spot Assist is activated, indicator
lamp :in the exterior mirrors lights up yel-
low up to a speed of 30 km/h. At speeds
above 30 km/h, the indicator lamp goes out
and Blind Spot Assist is operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
30 km/h, warning lamp :on the corre-
sponding side lights up red. This warning
always occurs when a vehicle enters the blind
spot monitoring range from behind or from the side. When you overtake a vehicle, the
warning only occurs if the difference in speed
is less than 12 km/h.
The yellow indicator lamp goes out if reversegear is engaged. Blind Spot Assist is then
deactivated.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp :flashes. If
the turn signal remains on, detected vehicles
are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Activating Blind Spot Assist
X Make sure that the radar sensor system
(Y page 217) and Blind Spot Assist
(Y page 212) are activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Lane Keeping Assist General notes
Lane Keeping Assist monitors the area in
front of your vehicle by means of camera
:
at the top of the windscreen. Lane Keeping Driving systems
195Driving and parking Z

Assist detects lane markings on the road and
warns you before you leave your lane unin-
tentionally.
If you select km kmon the on-board computer in
the Display unit Speed-/odometer
Display unit Speed-/odometer func-
tion (Y page 213), Lane Keeping Assist is
active starting at a speed of 60 km/h. If the
miles
miles display unit is selected, the assistance
range begins at 40 mph.
A warning may be given if a front wheel
passes over a lane marking. It will warn you by
means of intermittent vibration through the
steering wheel for up to 1.5 second s.
Im portant safety notes G
WARNING
Lane Keeping Assist cannot always clearly
identify lane markings.
In these cases, 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 keep in lane, especially if Lane
Keeping Assist alerts you. G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is a risk of an accident.
Always steer, apply the brakes or accelerate
the vehicle yourself, especially if Lane Keep-
ing Assist alerts you.
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
road, weather or traffic conditions. Lane
Keeping Assist is only an aid. You are respon- sible for the distance to the vehicle in front,
for vehicle speed, for braking in good time,
and for staying in lane.
Lane Keeping Assist does not keep your vehi-
cle in its 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 reflection from other vehicles
(e.g. if the road surface is wet)
R the windscreen is dirty, misted up, dam-
aged or covered, for instance by a sticker,
in the vicinity of the camera
R no, or several, unclear lane markings are
present for one lane, e.g. in a construction
area
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 highly variable shade conditions
on the road
Activating Lane Keeping Assist Vehicles with a black and white multifunction dis-
play
X Activate Lane Keeping Assist using the on-
board computer; to do so, select Standard Standard
or Adaptive
Adaptive (Ypage 212).
Vehicles with black and white multi-
function display: symbol:appears in
the multifunction display. If you drive at
speeds above 60 km/h and lane markings
are detected, symbol :is highlighted.
Lane Keeping Assist is ready for use. 196
Driving systemsDriving and parking

Vehicles with colour multifunction dis-
play:
if you drive at speeds above 60 km/h
and lane markings are detected, the lines in the assistance graphic (Y page 210) are
shown in green. Lane Keeping Assist is
ready for use.
Standard
If Standard
Standard is selected, no warning vibration
occurs if:
R you have switched on the turn signals. In
this case, the warnings are suppressed for
a certain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive
When Adaptive
Adaptive is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In
this case, the warnings are suppressed for
a certain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lane 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 recognises 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 motor-
way.
R the system recognises solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend. Driving systems
197Driving and parking Z

Assistance menu
Introduction Example: assistance menu view (colour multifunc-
tion display)
In the Assist.
Assist. menu, you have the following
options:
R Only vehicles with black and white multi-
function display: showing the status over-
view
R Only vehicles with black and white multi-
function display: showing the distance dis-
play (Y page 210)
R Only vehicles with colour multifunction dis-
play: showing the assistance graphic
(Y page 210)
R Vehicles with black and white multifunction
display: showing Speed Limit Assist and
activating/deactivating the Speed Limit
Assist message function (Y page 211)
R Only vehicles with colour multifunction dis-
play: activating/deactivating the Speed
Limit Assist message function
(Y page 211)
R Activating/deactivating PRE-SAFE ®
Brake
(Y page 211)
R Activating/deactivating ATTENTION
ASSIST (Y page 212)
R Activating/deactivating Blind Spot Assist
(Y page 212)
R Activating/deactivating Lane Keeping
Assist (Y page 212)
Showing the status overview The
Status overview Status overview is only available in
vehicles with a black and white multifunction display. X
Press the =or; button on the steer-
ing wheel to select the Assist.
Assist. menu.
X Press 9or: to select Status Status
overview
overview.
X Press the abutton.
The status overview shows you the status
of driving systems or driving safety sys-
tems:
R ATTENTION ASSIST (Y page 191)
R Lane Keeping Assist (Y page 195)
R PRE-SAFE ®
Brake (Y page 66)
Showing the distance display The
Distance display Distance display is only available in
vehicles with a black and white multifunction display and DISTRONIC PLUS.
X Press the =or; button on the steer-
ing wheel to select the Assist
Assistmenu.
X Press the 9or: button to select
Distance display
Distance display.
X Press the abutton.
The DISTRONIC PLUS distance display
appears in the multifunction display
(Y page 177).
Showing the assistance graphic Colour multifunction display
The Assistance Assistance graphic
graphicis only available in
vehicles with a colour multifunction display. 210
Menus and sub
menusOn-board computer and displays