2013 MERCEDES-BENZ SL-CLASS ROADSTER radio

If you do not open the vehicle within
approximately
40 seconds of unlocking:
R the vehicle is locked again.
R the theft deterrent locking system is
armed again.
X To lock centrally: press the
& button.
The SmartKey centrally locks/unlocks:
R the doors
R the trunk lid
R the glove box
R the stowage compartment under the
armrest
R the stowage compartment in the rear
compartment
R the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can

also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y page 218).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 217). KEYLESS-GO
General notes on the use of KEYLESS-
GO R
Do not

keep the KEYLESS-GO key together
with:
- electronic devices, e.g. a mobile phone
or another key
- metallic objects, e.g. coins or metal foil
This can affect the functionality of
KEYLESS-GO.
R Bear in mind that the engine can be started
by any of the vehicle occupants if there is
a KEYLESS-GO key in the vehicle. Locking and unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO.
To

do this, you only need carry
the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a
conventional key. Unlock the vehicle by using
KEYLESS-GO, for instance, and lock it using
the & button on the key.
When locking or unlocking with KEYLESS-GO,
the distance between the SmartKey and the
door handle you wish to lock or unlock must
not be greater than 3 ft (1 m). X
To unlock the vehicle: touch the inner
surface of the door handle.
X To lock the vehicle: touch sensor
surface :.
X Convenience closing feature: touch
recessed sensor surface ; for an
extended period ( Y page 85).
If you pull on the handle of the trunk lid, only
the trunk of the vehicle is unlocked.
KEYLESS-GO checks whether a valid
SmartKey is in the vehicle by periodically
establishing a radio connection between the
vehicle and the SmartKey. This happens:
R when the external door handles are
touched
R when starting the engine
R while the vehicle is in motion SmartKey
69
Opening/closing Z

Problems with the SmartKey
Problem Possible causes/consequences and
M Solutions
You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the % or
& button.
If this does not work:
X Check the SmartKey battery (Y page 71) and replace it if
necessary ( Y page 71).
X Lock ( Y page 76) or unlock ( Y page 77) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Unlock ( Y page 76) or lock (
Y page 77) the vehicle using the
mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle using the remote control function of
the SmartKey.

Point the tip of the SmartKey at the driver's door
handle from close range and press the % or & button.There is a malfunction with KEYLESS-GO.
X
Lock/unlock the vehicle using the remote control function of
the SmartKey.

Point the tip of the SmartKey at the driver's door
handle from close range and press the % or & button.
X Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the SmartKey battery (Y page 71) and replace it if
necessary ( Y page 71).
X Lock ( Y page 76) or unlock ( Y page 77) the vehicle using
the mechanical key. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
73
Opening/closing Z

Problem Possible causes/consequences and
M SolutionsThe engine cannot be
started using the
SmartKey. the on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 515).
or
X Jump-start the vehicle (Y page 516).
or
X Consult a qualified specialist workshop. The engine cannot be
started
using
KEYLESS-
GO. The SmartKey is in
the vehicle. A door is open. Therefore, the SmartKey cannot be detected as
easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system,

and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function. If children open a door, they could cause
severe
or

even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger compartment unless they are
firmly secured in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of:
R strong braking maneuvers
R sudden changes of direction
R an accident74
Doors
Opening/closing

G
WARNING
DISTRONIC PLUS distance is not a substitute
for the

active intervention of the driver. It does
not detect pedestrians or stationary objects,
nor can it detect, recognize or predict the
road's course or the movements of vehicles
in front. DISTRONIC PLUS can only brake the
vehicle using 40% of the vehicle's maximum
available brake force.
DISTRONIC PLUS may not detect narrow
vehicles driving in front, e.g. motorcycles, or
vehicles driving in the lane beyond the lane
next to your vehicle, especially if the vehicles
are not driving on the middle of their lane.
The driver must always pay careful attention
to the road, weather and traffic conditions.
The driver must drive, steer and brake in a
manner which will allow him to always have
control of the vehicle.
Sources of high-frequency radio waves, such
as toll stations, speed-measuring radar, etc.,
can cause DISTRONIC PLUS to fail
temporarily. G
WARNING
The DISTRONIC PLUS cannot take road and
traffic conditions into account. Only use the
DISTRONIC PLUS if the road, weather and
traffic conditions make it advisable to travel
at a constant speed. G
WARNING
Use of the DISTRONIC PLUS can be
dangerous on slippery roads. Rapid changes
in tire traction can result in wheel spin and
loss of control.
The DISTRONIC PLUS does not function in
adverse sight

and distance conditions. Do not
use the DISTRONIC PLUS during conditions of
fog, heavy rain, snow or sleet. G
WARNING
The DISTRONIC PLUS cannot take weather
conditions into account. Switch off the
DISTRONIC PLUS or do not switch it on if:
R roads are

slippery or covered with snow or
ice. The wheels could lose traction while
braking or accelerating, and the vehicle
could skid.
R the DISTRONIC PLUS system sensor covers
are dirty or visibility is diminished due to
snow, rain or fog, for example. The distance
control system functionality could be
impaired.
Always pay attention to surrounding traffic
conditions even while the DISTRONIC PLUS is
switched on. Otherwise, you may not be able
to recognize dangerous situations until it is
too late. This could cause an accident in which
you and/or others could be injured. G
WARNING
The "Resume" function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed. G
WARNING
Your undivided attention to street and traffic
conditions is necessary at all times whether
DISTRONIC PLUS is active or not.
The use of DISTRONIC PLUS can be
dangerous on

winding roads or in heavy traffic
because conditions do not allow safe driving
at a constant speed.
DISTRONIC PLUS does not react to stationary
objects on the road (for example, a vehicle
stopped in traffic or an abandoned vehicle).
DISTRONIC PLUS likewise does not react to
oncoming vehicles. Driving systems
165
Driving and parking
Z

Problems with PARKTRONIC
Problem Possible causes/consequences and
M SolutionsOnly the red segments
in the PARKTRONIC
warning
displays
are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is
deactivated after
approximately five
seconds, and the
indicator lamp in the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning
displays

are lit.
PARKTRONIC is
deactivated after
approximately five
seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors ( Y page 504).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Active Parking Assist
Important safety notes G
WARNING
PARKTRONIC and Active Parking Assist are
merely parking aids and may not detect all
obstacles. They do not relieve you of the
responsibility of paying attention.
You are always responsible for safety and
must continue to pay attention to your
immediate surroundings when parking,
exiting parking

spaces and maneuvering. You
could otherwise endanger yourself and
others. G
WARNING
When parking or exiting a parking space, you
need to make sure that no obstacles are
located in

the vicinity of the vehicle during the entire operation. Active Parking Assist does
not relieve you of the responsibility of paying
attention. It merely aids you by intervening
actively in the steering.
To stop the vehicle or to avoid an accident,
you need to apply the brakes yourself.
G
WARNING
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at
a sharp

angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist is an electronic parking
aid with ultrasound. Active steering
intervention can assist you when parking or 186
Driving systems
Driving and parking

Change of direction announced with a
lane recommendation
:
Road into which the change of direction
leads
; Distance to change of direction and visual
distance display
= Lane recommendation
? New lane during a change of direction
A Uninterrupted lane
B Change-of-direction icon
On multilane roads, lane recommendation
= may be shown for the next change of
direction. During the change of direction,
additional lanes may be displayed.
Lane recommendations are only displayed if
the relevant data is available on the digital
map.
Other status indicators of the
navigation system R
O: you
have reached the destination or an
intermediate destination.
R New Route... or Calculating Route: a
new route is being calculated.
R Off Map or Off Mapped Road : the vehicle
position is outside the area of the digital
map (off-map position).
R No Route : no route could be calculated to
the selected destination. Audio menu
Selecting a radio station :
Waveband
; Station frequency with memory position
i Station ; is displayed with the station
frequency and station name. The memory
position is only displayed along with
station ; if this has been stored.
X Switch on COMAND (Y page 275).
X Select radio ( Y page 411).
X Press the = or ; button on the
steering wheel to select the Audio menu.
X To select a stored station: briefly press
the 9 or : button.
X To select a channel from the channel
list: press and briefly hold the 9
or : button.
If no station list is received:
X To select a station using the station
search: press and briefly hold the 9
or : button.
i Switching the waveband ( Y page 413).
Saving the station ( Y page 414).
i SIRIUS XM satellite radio functions like a
normal radio.
For more information on satellite radio
mode ( Y page 416). Menus and submenus
211
On-board computer and displays Z

Display messages Possible causes/consequences and
M SolutionsPRE-SAFE
Functions
Currently Limited
See Operator's
Manual
PRE-SAFE
®
Brake is deactivated or temporarily inoperative.
Possible causes are:
R the DISTRONIC PLUS cover in the radiator grill is dirty.
R function is impaired due to heavy rain or snow.
R the sensors in the bumpers are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R AMG vehicles: ESP ®
is deactivated.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Clean the DISTRONIC PLUS cover in the radiator grill
(Y page 504).
X Clean the bumpers ( Y page 504).
X Restart the engine.
X AMG vehicles: reactivate ESP ®
(Y page 61).
If the system detects that the sensors are fully operational, the
display message disappears.
PRE-SAFE ®
Brake is operational again. PRE-SAFE
Functions Limited
See Operator's
Manual
PRE-SAFE
®
Brake is inoperative due to a malfunction. BAS PLUS
or the distance warning signal may also have failed.
X Visit a qualified specialist workshop. A
Malfunction
Service Required The roll bars are defective.
G WARNING
The roll bars will then possibly not be extended in the event of an
accident.
There is an increased risk of injury.
X Visit a qualified specialist workshop immediately. Display messages
231On-board computer and displays Z

Display messages Possible causes/consequences and
M SolutionsAct. Lane Keep.
Assist Currently
Unavailable See
Operator's Manual Active Lane Keeping Assist is deactivated and temporarily
inoperative. Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
R there are no lane markings for a longer period.
R the lane
markings are worn, dark or covered, e.g. by dirt or snow.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Clean the windshield.
If the system detects that the camera is fully operational, the
display message disappears.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again. Act. Lane Keep.
Assist Inoperative Active Lane Keeping Assist is defective.
X
Visit a qualified specialist workshop. Active Blind Spot
Assist Currently
Unavailable See
Operator's Manual Active Blind Spot Assist is temporarily inoperative. Possible
causes are:
R
the sensors are dirty.
R function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellow 9 indicator lamps also light up in the exterior
mirrors.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Clean the sensors ( Y page 504).
X Restart the engine.
If the system detects that the sensors are fully operational, the
display message disappears.
Active Blind Spot Assist is operational again. Display messages
243
On-board computer and displays Z