2016 MERCEDES-BENZ SL-CLASS ROADSTER warning

If a course-correcting brake application
occurs, red warning lamp:flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display ;appears in the
multifunction display.
If Active Blind Spot Assist detects a risk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision.
The course-correcting brake application is
available in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h).
Either a very slight course-correcting brake
application, or none at all, may occur if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehi-
cle.
Ra vehicle approaches you too closely at the
side.
Ryou have adopted a sporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Ra driving safety system intervenes, e.g.
ESP®or PRE-SAFE®Brake.
RESP®is switched off.
Ra loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist
XMake sure that Active Blind Spot Assist is
activated (
Ypage 231).
XTurn the SmartKey to position 2in the igni-
tion lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera :
at the top of the windshield. Active Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally. If you do not react to the
warning, a lane-correcting application of the
Driving systems217
Driving and parking
Z

brakes can bring the vehicle back into the
original lane.
If you selectkm
on the on-board computer in
the Display Unit Speed-/Odometer
func-
tion (
Ypage 232), Active Lane Keeping Assist
is activated starting at a speed of 60 km/h. If
the miles
display unit is selected, the assis-
tance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys-
ics. Lane Keeping Assist cannot take into
account the road, traffic and weather condi-
tions. 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.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
Rgive an unnecessary warning and then
make a course-correcting brake application
to the vehicle
Rnot give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not func-
tion if:
Rthere is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
Rthere is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
Rthe windshield is dirty, fogged up, damaged or covered, for instance by a sticker, in the
vicinity of the camera
Rthere are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con- struction work
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
Rthe lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road
Warning vibration in the steering wheel
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 seconds.
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:
Ryou approach the outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. a high-
way.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on a bend.
Lane-correcting brake application
GWARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
218Driving systems
Driving and parking

you or makesalane-correcting brak eappli -
cation .
GWARNIN G
Active Lan eKeepin gAssis tdoes no tdetec t
traffic condition sor roa dusers. In ver yrar e
cases, th esystem may mak ean inappropriat e
brak eapplication ,e.g. after intentionally driv-
in gove r asoli dlan emarking .There is aris kof
an accident.
An inappropriat ebrak eapplication may be
interrupted at any time if you steer slightly in
th eopposit edirection .Always mak esur ethat
there is sufficien tdistanc eon th eside for
other traffic or obstacles.
In rar ecases, Active Lan eKeepin gAssis tcan
recogniz eunclear marking sor particular
structures on th eroadway as soli dlan emark-
ings. An inappropriat ebrak eapplication may
be interrupted at any time if you steer slightly
in th eopposit edirection .
Ifalane-correcting brak eapplication occurs,
display :appear sin th emultifunction dis-
play.
If you leav eyour lane, under certain circum -
stances th evehicl ewill brak ebriefl yon on e
side .This is mean tto assist you in bringin g
th evehicl ebac kto th eoriginal lane.
This function is available in th erange between
40 mph and 12 0mph (60 km/ h and
200 km/h).
A lane-correcting brake application can only
be made after driving over a solid, recogniz-
able lane marking. Before this, a warning must be given by means of intermittent vibra-
tion in the steering wheel. In addition, a lane
with lane markings on both sides must be
recognized. The brake application also
slightly reduces vehicle speed.
iA further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if:
Ryou clearly and actively steer, brake or
accelerate.
Ryou cut the corner on a sharp bend.
Ryou have switched on the turn signals.
Ra driving safety system intervenes, e.g.
ESP®, PRE-SAFE®Brake or Active Blind
Spot Assist.
Ryou have adopted a sporty driving style with high cornering speeds or high rates of
acceleration.
RESP®is switched off.
Rthe transmission is not in position D.
Rwhen a loss of tire pressure or a defective
tire has been detected and displayed.
Active Lane Keeping Assist does not detect
traffic situations or road users. An inappro-
priate brake application may be interrupted at
any time if you:
Rsteer slightly in the opposite direction
Rswitch on the turn signal
Rclearly brake or accelerate
A lane-correcting brake application is inter-
rupted automatically if:
Ra driving safety system intervenes, e.g.
ESP®, PRE-SAFE®Brake or Active Blind
Spot Assist.
Rlane markings can no longer be recognized.
Driving systems219
Driving and parking
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Switching on Active Lane Keeping Assist
XSwitch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
orAdaptive(Ypage 232).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
(
Ypage 231) are shown in green. Lane
Keeping Assist is ready for use.
If Standard
is selected, no warning vibra-
tion occurs if:
Ryou have switched on the turn signals. In
this event, the warnings are suppressed
for a certain period of time.
Ra driving safety system intervenes, such
as ABS, BAS or ESP®.
When Adaptive
is selected, no warning
vibration occurs if:
Ryou have switched on the turn signals. In
this event, the warnings are suppressed
for a certain period of time.
Ra driving safety system intervenes, e.g.
ABS, BAS or ESP®.
Ryou accelerate hard, e.g. kickdown.
Ryou brake hard.
Ryou steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
220Driving systems
Driving and parking

Useful information............................222
Important safety notes .....................222
Displays and operation .....................222
Menus and submenus ......................225
Display messages ............................. 239
Warning and indicator lamps ...........270
221
On-board computer and displays

Useful information
i
This 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 34).
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 control
of 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 41).
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 located on the bottom left of the instrument cluster
(
Ypage 41).
XTurn the brightness control knob clockwise
or counter-clockwise.
If you turn the light switch to Ã,Tor
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 illuminated.
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.
RDISTRONIC PLUS activated (Ypage 182):
One or two segments in the set speed
range light up.
RDISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
222Displays and operation
On-board computer and displays

The segments between the speed of the
vehicle in front and the stored speed light
up.
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 224).
A change in the outside temperature is shown
in the multifunction display after a delay.
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.
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
(
Ypage 41).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †).
Operating the on-board computer
Overview
:Multifunction display
;Switches on the Voice Control System
(see the separate operating instructions)
=Right control panel
?Left control panel
ABack button
XTo 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 operation223
On-board computer and displays
Z

Operating an audio player or audio
media
Audio data from various audio devices or
media can be played, depending on the equip-ment installed in the vehicle.
XSwitch on COMAND and select audio CD or
MP3 mode.
XPress the =or; button on the steer-
ing wheel to select the Audio
menu.
XTo select the next/previous track:
briefly press the9or: button.
XTo select a track from the track list
(rapid scrolling): press and hold the 9
or : button until desired track :
appears.
If you press and hold the 9or:
button, the rapid scrolling speed is
increased. Not all audio drives or data car-
riers support this function.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and title of the track.
The current track does not appear in audio
AUX mode (Aux iliary audio mode: external
audio source connected).
Video DVD operation
XSwitch on COMAND and select video DVD.
XPress the =or; button on the steer-
ing wheel to select the Audio
menu.
XTo select the next or previous scene:
briefly press the9or: button.
XTo select a scene from the scene list
(rapid scrolling): press and hold the 9
or : button until desired scene :
appears.
Telephone menu
Introduction
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 control
of 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.
When telephoning, you must observe the
legal requirements for the country in which
you are currently driving.
XSwitch on the mobile phone (see the man-
ufacturer’s operating instructions).
XSwitch on COMAND (Ypage 297).
XEstablish a Bluetooth®connection to
COMAND (
Ypage 382).
XPress the =or; button on the steer-
ing wheel to select the Tel
menu.
You will see one of the following display mes-
sages in the multifunction display:
RPhone READYor the name of the mobile
phone network provider:
The mobile phone has found a network and
is ready to receive.
RPhone No Service:
No network is available or the mobile phone
is searching for a network.
Menus and submenus229
On-board computer and displays
Z