battery MERCEDES-BENZ SL ROADSTER 2012 Owner's Guide

Cordless headphones
Overview
:
Volume control
; Selects a screen for the headphones
= Battery compartment cover
? Switches the cordless headphones on/off
A Indicator lamp with various displays (Y page 523)
X Open both sides of the headphones and adjust the fit of the headphones by pulling the
headphone band in the direction of the arrow.
Switching the cordless headphones
on/off X
Press button :.
Depending on the previous status, the
headphones are switched on or off. To pre- serve the batteries, the headphones auto-
matically switch off if they have not
received an audio signal for approximately
three minutes. 522
Rear Seat Entertainment SystemCOMAND Online

Adjusting the volume of the headphones
X
Turn volume control :until the desired
volume has been set.
i If you have connected cordless head-
phones to a rear-compartment screen, you can adjust the volume using the remote
control (Y page 520).
Selecting a screen for the headphones X
Move push slider :toL(left-hand screen)
or R(right-hand screen). Indicator lamp displays
The colour of the indicator lamp shows
whether the headphones are switched on or
off and indicates the charge level of the bat-
teries inserted. LED dis-
play Status
Green The batteries are fine.
Red The batteries are almost dis-
charged.
Lit continu-
ously The headphones are switched
on and connected to a screen. Flashing The headphones are search-
ing for the connection to a
screen.
Off (dark) The headphones are switched
off or the batteries are dis-
charged. Connecting additional headphones
You can connect one additional set of corded
headphones to each of the two rear-compart- ment screens (Y page 520). The socket is
designed for headphones with a 3.5 mm
stereo jack plug and an impedance of
32 ohms.
Replacing batteries Notes
G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately. H
Environmental note
Dispose of used batteries in an environmen-
tally responsible manner. Rear Seat Entertainment System
523COMAND Online Z

Batteries are required for the remote control
and for the two sets of cordless headphones. The batteries can be replaced (Y page 523).Only valid for South Africa
On the remote control :
Battery compartment
; Catch tab
= Battery compartment cover
? Retaining lugs
A Batteries
The remote control contains 2 type AAA, 1.5 V
batteries.
X To open the battery compartment:
remove battery compartment cover =on
the back of the remote control.
X To do so, press down retaining lug ;and
take off battery compartment cover =.X
Remove discharged batteries Afrom the
tray.
X Insert the new batteries. Observe the polar-
ity markings on the batteries and battery
compartment when doing so.
Left-hand battery: the positive pole (+)
must face upwards.
Right-hand battery: the positive pole (+)
must face downwards.
X To close the battery compartment:
insert battery compartment cover =start-
ing with retaining lugs ?into the battery
compartment and allow catch tab ;to
engage in place.
On the cordless headphones :
Battery compartment cover
The cordless headphones contain two type
AAA, 1.5 V batteries.
X To open the battery compartment: flip
battery compartment cover :upwards.
As you do so, hold the left-hand side of the headphones as shown to prevent the bat-
teries from falling out.
X Remove the discharged batteries from the
tray.
X Insert the new batteries. Observe the polar-
ity markings on the batteries and battery
compartment when doing so.
Left-hand battery: the positive pole (+)
must face upwards. 524
Rear Seat Entertainment SystemCOMAND Online

Right-hand battery: the positive pole (+)
must face downwards.
X To close the battery compartment:
press the battery compartment cover
downwards until it engages into place.
If the batteries have been inserted cor-
rectly, the indicator lamp will light up green
when the headphones are switched on.
i The operating duration of the headphones
with a set of batteries is up to 40 hours. Basic functions
Using headphones You can use the cordless headphones sup-
plied and/or up to two sets of corded head-
phones connected to the corresponding jack
of the rear-compartment screens
(Y page 520).
Information on the cordless headphones
(Y page 522).
Using the main loudspeakers This function is available in conjunction with
COMAND Online.
You can use the vehicle loudspeakers to lis-
ten to a disc inserted in the rear-compartment drive. To do so, at least one of the rear-com-
partment screens must be set to disc mode.
X To set on COMAND Online: press the
$ function button to switch on an audio
mode.
X Select Audio
Audio by sliding ZVthe COMAND
controller and press Wto confirm.
The Audio menu appears.
X Select Rear Rearby turning cVdthe COMAND
controller and press Wto confirm.
i The headphones' volume setting does not
affect the main loudspeakers. Selecting sound settings You can select the sound settings in the audio
CD/DVD/MP3, TV, video DVD and AUX
modes.
X Switch on an operating mode (e.g. audio
CD mode) (Y page 527).
X Select Treble Treble orBass
Bass using
the :=; buttons on the remote
control and press the 9button to confirm.
An adjustment scale appears.
X Select a setting using the 9:but-
tons and press the 9button to confirm.
Multiple users Simultaneous use of the rear-compart-
ment disc drive
The two rear-compartment screens can be
operated almost entirely independently from
one another. However, there can be a conflict
in some menus if the two screens are used
simultaneously.
If the rear-compartment disc drive is being
used for both screens simultaneously, select- ing certain menus or settings on one of the
screens also affects the other screen.
The following functions affect both screens:
R changing playback options
R selecting a track (from a track list or folder)
R using the play, pause and stop functions
R fast forwarding/rewinding or scrolling
R calling up the DVD menu and navigating
within it
R setting the language, subtitles and camera
angle
R calling up interactive DVD content
The following functions affect only one
screen:
R audio and video functions as well as picture
settings
R switching between full screen and the
menu Rea
r Seat Entertainment System
525COMAND Online Z

X
To open: open stowage compartment :
(Y page 545).
X To remove the insert: pull insert;up in
the direction of the arrow, out of the cup
holder.
X To refit the insert: push insert;on the
left-hand side into the cup holder.
i Only refit insert
;on the left-hand side of
the cup holder. Cigarette lighter
G
WARNING
You can burn yourself if you touch the hot
heating element or the socket of the cigarette lighter.
In addition, flammable materials can ignite if:
R the hot cigarette lighter falls
R a child holds the hot cigarette lighter to
objects, for example
There is a risk of fire and injury.
Always hold the cigarette lighter by the knob.
Always make sure that the cigarette lighter is
out of reach of children. Never leave children unattended in the vehicle. Your attention must always be focused on the
traffic conditions. Only use the cigarette
lighter when road and traffic conditions per-
mit. X
Turn the key to position 2in the ignition
lock (Y page 155).
X To open: open stowage compartment :
under the armrest (Y page 545).
X Press in cigarette lighter ;.
Cigarette lighter ;will pop out automati-
cally when the heating element is red-hot. 12 V sockets
General notes X
Turn the key to position 1in the ignition
lock (Y page 155).
The sockets can be used for accessories with a maximum draw of 180 W(15 A). Accesso-
ries include such items as bulbs or chargers
for mobile phones.
If you use the sockets for long periods when
the engine is switched off, the battery may
discharge.
i An emergency cut-off ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, the power to
the sockets is automatically cut. This
ensures that there is sufficient power to
start the engine.
Socket in the front-passenger footwell X
Lift up the cover of socket :.550
FeaturesStowing and fea
tures

More information on suitable mobile phones,
mobile phone brackets and on connecting
Bluetooth ®
-capable mobile phones with
COMAND Online can be obtained:
R at your Mercedes-Benz Service Centre
R on the Internet at http://www.mercedes-
benz.com/connect
i The functions and services available when
you use the phone depend on your mobile
phone model and service provider.
Using a mobile phone If the mobile phone is inserted in the mobile
phone bracket, the mobile phone will be
charged and connected with the exterior aer-
ial.
X Open the telephone compartment
(Y page 545).
X Place the mobile phone bracket into the
pre-installed fitting; see the separate instal-
lation instructions for the mobile phone fit-
ting.
X Insert the mobile phone into the mobile
phone bracket; see the separate installa-
tion instructions for the mobile phone fit-
ting.
Operating the mobile phone You can operate the telephone using the
6 and~ buttons on the multifunction
steering wheel. You can operate other mobile
phone functions via the on-board computer
(Y page 235).
When you remove the key from the ignition
lock, the mobile phone is disconnected from
the hands-free system. Active calls will first
be transferred to the mobile phone directly. Charge maintenance socket
The battery may drain if the vehicle is left sta-
tionary for long periods. In this case,
Mercedes-Benz recommends attaching the
trickle charger to charge maintenance
socket :.
Charge maintenance socket :is designed
solely for connecting a trickle charger. A
trickle charger can be obtained from a
Mercedes-Benz Service Centre, for example.
X Switch the ignition off.
X Open the boot lid.
X Open the stowage well under the boot floor
(Y page 548).
X Remove the boot tub using the handle.
X Connect the trickle charger to charge main-
tenance socket :. Consult the manufac-
turer's operating instructions on how to do
so.
The boot lid can be closed, even if a trickle
charger is connected. Make sure that the
connector for both the connector cables is
outside of the vehicle.
The connector can then separate if the vehi-
cle is moved, even if you forget to disconnect
the connector cables. This prevents damag-
ing the cables and the trickle charger.
i A trickle charger connected to charge
maintenance socket only maintains the
current charge level of the vehicle's elec-
trical system battery. If the vehicle's elec-
trical system battery is discharged, it needs
to be charged with a battery charger. You 552
FeaturesStowing and features

will find further information on charging the
battery on (Y page 582). Garage door opener
General notes The HomeLink
®
garage door opener integra-
ted in the rear-view mirror allows you to oper- ate up to three different door and gate sys-
tems.
Once programmed, the integrated garage
door opener in the rear-view mirror will
assume the function of the garage door sys-
tem's remote control. Please also read the
operating instructions for the garage door
system.
When programming a garage door opener,
park the vehicle outside the garage. Do not
run the engine while programming.
The garage door opener is only available for
certain countries. Observe the legal require-
ments for each individual country.
The HomeLink ®
garage door opener is com-
patible with most European garage and gate
opener drives. More information on Home-
Link ®
and/or compatible products is availa-
ble:
R at a qualified specialised workshop
R via the HomeLink ®
Hotline
(0) 08000 466 354 65 or alternatively
+49 (0) 6838 907-277
R on the Internet at
http://www.homelink.com
Important safety notes G
WARNING
When you operate or program the garage door with the integrated garage door opener, per-
sons in the range of movement of the garage
door can become trapped or struck by the
garage door. There is a risk of injury.
When using the integrated garage door
opener, always make sure that nobody is within the range of movement of the garage
door.
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Programming Programming buttons
Pay attention to the "Important safety notes"
(Y page 553). Integrated garage door opener in the rear-view mir-
ror
Garage door remote control Ais not inclu-
ded with the integrated garage door opener.
X Turn the key to position 2in the ignition
lock (Y page 155).
X Select one of buttons ;to? to use to
control the garage door drive.
X To start programming mode: press and
hold one of buttons ;to? of the inte-
grated garage door opener.
The garage door opener is now in program-
ming mode. After a short time, indicator
lamp :begins to light up yellow.
Indicator lamp :lights up yellow immedi-
ately the first time button ;,=or? is
programmed. If the selected button has
already been programmed, indicator Features
553Stowing and features Z

i
The ASSYST PLUS service interval display
does not show any information on the
engine oil level. Observe the notes on the
engine oil level (Y page 564).
The multifunction display shows a service
message for a few seconds, e.g.:
R Service A in .. days
Service A in .. days
R Service A due Service A due
R Service A overdue by .. days
Service A overdue by .. days
Depending on the operating conditions of the vehicle, the remaining time or distance until
the next service due date is displayed.
The letter indicates which service is due. A A
stands for a minor service and B
Bfor a major
service. A number or another letter may be
displayed after the letter.
Only for certain countries: the position after
the letter A
A or B Bindicates any necessary addi-
tional maintenance work to be performed. If
you notify a qualified specialist workshop of
this display, you will receive a statement on
the associated costs.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted.
Maintaining the time-dependent service
schedule:
X Note down the service due date displayed
in the multifunction display before discon-
necting the battery.
or X After reconnecting the battery, subtract
the battery disconnection periods from the service date shown on the display. Hiding a service message
X Press the aor% button on the steer-
ing wheel. Displaying a service message
X Switch the ignition on.
X Press the =or; button on the steer-
ing wheel to select the Serv. Serv.menu.
X Press the 9or: button to select the
ASSYST PLUS ASSYST PLUS submenu and confirm by
pressing the abutton.
The service due date appears in the multi-
function display. Information about Service
Resetting the ASSYST PLUS service
interval display !
If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a qualified special-
ist workshop.
Have service work carried out as described in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
A qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre, will reset the ASSYST PLUS service interval display after
the service work has been carried out. You
can also obtain further information on main-
tenance work, for example.
Special service requirements The prescribed service interval is based on
normal operation of the vehicle. Service work
will need to be performed more often if the
vehicle is operated under arduous conditions
or increased loads, for example:
R regular city driving with frequent intermedi-
ate stops
R if the vehicle is primarily used to travel
short distances
R for frequent operation in mountainous ter-
rain or on poor road surfaces
R if the engine is often left idling for long peri-
ods ASSYST PLUS
567Maintenance and care Z

vehicle in a tow-through car wash. Other
transmission positions may lead to damage to the vehicle.
! Make sure that:
R the side windows and the roof are com-
pletely closed
R the climate control blower is switched off
R the windscreen wiper switch is at posi-
tion 0
The vehicle could otherwise be damaged.
You can wash the vehicle in an automatic car
wash from the very start.
Wash off excess dirt before cleaning the vehi- cle in an automatic car wash.
After using an automatic car wash, wipe wax
off the windscreen and the wiper blades. This
will prevent smears and reduce wiping noises caused by residue on the windscreen.
Washing by hand In some countries, washing by hand is only
allowed at specially equipped washing bays.
Observe the legal requirements for each indi- vidual country.
X Do not use hot water and do not wash the
vehicle in direct sunlight.
X Use a soft sponge to clean.
X Use a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz.
X Thoroughly hose down the vehicle with a
gentle jet of water.
X Do not point the water jet directly towards
the air inlet.
X Use plenty of water and rinse out the
sponge frequently.
X Rinse the vehicle with clean water and dry
thoroughly with a chamois.
X Do not let the cleaning agent dry on the
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible. High-pressure cleaning equipment G
WARNING
The water jet of circular-jet nozzles (dirt grind- ers) can cause damage not visible from the
outside to tyres or chassis components. Com-
ponents damaged in this way can unexpect-
edly fail. There is a risk of an accident.
Do not use high-pressure cleaners with circu-
lar-jet nozzles to clean the vehicle. Have dam- aged tyres or chassis components replaced
immediately.
! Always maintain a distance of at least
30 cm between the vehicle and the high-
pressure cleaner nozzle. Information about
the correct distance is available from the
equipment manufacturer.
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door gaps, roof gaps, joints etc.
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
! Vehicles with HANDS-FREE ACCESS: if a
key with KEYLESS-GO is within the detec-
tion range of the KEYLESS-GO antenna, the
following situations could lead to the unin-
tentional opening of the boot lid:
R using a car wash
R using a high-pressure cleaner
Make sure that the key is at least 2 m away
from the vehicle. Care
569Maintenance and care Z

Useful information
............................576
Where will I find...? ...........................576
Flat tyre ............................................. 578
Battery (vehicle) ................................ 582
Jump-starting .................................... 586
Towing and tow-starting ..................588
Electrical fuses ................................. 592 575Breakdown assistance