2011 MERCEDES-BENZ S-Class radio unavailable

is operated in a commercial environment.
This equipment generates, uses and can
radiate radio frequency energy and, if not
installed and used in accordance with the
instruction manual, may cause harmful
interference to radio communications.GWarning
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled
equipment and meets the FCC radio
frequency (RF) Exposure Guidelines in
Supplement C to OET65.
This equipment has very low levels of RF
energy that is deemed to comply without
maximum permissive exposure evaluation
(MPE). But it is desirable that it should be
installed and operated with at least 8 inches
(20 cm) and more between the radiator and a
person's body (excluding extremities: hands,
wrists, feet and legs.)
Correct use
Observe the following information when using
COMAND:
R the safety notes in this manual
R all road traffic regulations
i Improper work on electronic components
or other systems (such as radio, DVD
changer) and their software may result in
malfunction or failure. Even systems that
have not been modified could be affected
because the electronic systems are
connected. Electronic malfunctions can
seriously jeopardize the operational safety
of your vehicle.
i Only have work or changes to electronic
components carried out at a qualified
specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. Daimler
recommends that you use an authorized
Mercedes-Benz Center for this purpose. In
particular, work relevant to safety or on
safety-related systems must be carried out
at a qualified specialist workshop.
i Protection against theft: this device is
equipped with technical provisions to
protect it against theft. Further information
on protection against theft can be obtained
from an authorized Mercedes-Benz Center.
Vehicle equipment
These operating instructions describe all
standard and optional equipment available
for your vehicle at the time of going to print.
Country-specific deviations are possible.
Please note that your vehicle may not be
equipped with all features described. This
includes safety-related systems and
functions. The equipment in your vehicle may
therefore differ from some of the descriptions
or illustrations. The original purchase
agreement lists all systems installed in your
vehicle. Contact an authorized Mercedes-
Benz Center if you have any questions about
equipment or operation.
Function restrictions
For safety reasons, some COMAND functions
are restricted or unavailable while the vehicle
is in motion. You will notice this, for example,
because you will either not be able to select
certain menu items or because COMAND will
display a message to this effect.
To protect the integrated hard drive against
damage, COMAND deactivates the drive at
very high temperatures. The following
functions will be temporarily unavailable:
R navigation system
R Voice Control System
R address book
R MUSIC REGISTER
Introduction115COMANDZ

HD Radio display1Display/selection window with frequency
display
2Preset number3Name of the selected station with HD icon
and program number
4Station frequency5Sound settings6FM, AM or WB radio7Program information8Station presets9Radio functions
Switching wavebands
See "Switching wavebands" in the radio mode
chapter (Y page 209).
Selecting a station
You can select an HD Radio station in the
same way as selecting a standard FM radio
station. After tuning in to an HD Radio
frequency, you will briefly hear the analog
station until the digital data has been
decoded. You will then be listening to digital
radio and be able to switch to a sub-program
(-HD2).
See "Selecting stations" in the Radio mode
section (Y page 209).
Storing stations
See "Storing stations" in the Radio mode
section (Y page 210).
Displaying program informationXSelect Audio in the main function bar by
sliding ZV and turning cVd the COMAND
controller and press W to confirm.
XSelect Audio by sliding ZV the COMAND
controller and press W to confirm.
The audio menu appears.
XSelect HD Radio by sliding ZV the
COMAND controller and press W to
confirm.
XSelect Info in the HD Radio display by
sliding ZV the COMAND controller and
press the W to confirm.
Information on the currently selected
station is displayed. The contents and
purpose of the information depend on the
HD Radio station.
SatRadio
Important notes
This section provides detailed information on
the following topics:
Rselecting a channel and program category
Rmemory functions
Rsound settings
iSatellite radio mode described here
requires optionally available satellite radio
equipment and registration with a satellite
radio provider.
iNote that the categories and channels
shown in the illustrations depend on the
program content offered by the provider.
The program contents may vary. The
illustrations and descriptions in these
operating instructions may therefore differ
from the channels and categories offered
by the provider.
Satellite radio mode may be temporarily
unavailable or interrupted for a variety of
reasons. These reasons include
environmental or topographical conditions
as well as other issues beyond the control
Audio213COMANDZ

Display messagesPossible causes/consequences and M SolutionsLane Keeping
Assist Currently
Unavailable See
Oper. Manual
Active Lane
Keeping Assist
Currently
Unavailable See
Oper. ManualLane Keeping Assist or Active Lane Keeping Assist is deactivated
and temporarily inoperative if:
R the windshield is dirty in the camera’s field of vision.
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, for example by dirt
or snow.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again and the display message disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the camera is fully operational again.
If the display message continues to be displayed:XClean the windshield.Lane Keeping
Assist Inoperative
Active Lane
Keeping Assist
InoperativeLane Keeping Assist or Active Lane Keeping Assist is faulty.XVisit a qualified specialist workshop.Blind Spot Assist
Currently
Unavailable See
Oper. Manual
Active Blind Spot
Assist Currently
Unavailable See
Oper. ManualBlind Spot Assist or Active Blind Spot Assist is temporarily
inoperative if:
R the sensors are dirty.
R its 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.
Blind Spot Assist or Active Blind Spot Assist is operational again
and the display message disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R the radar sensor system is back within the operating
temperature range.
If the display message continues to be displayed:XClean the sensors ( Y page 456).XRestart the engine.404Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsDISTRONIC PLUS
Currently
Unavailable See
Oper. ManualDISTRONIC PLUS is deactivated and is temporarily inoperative if:
R the DISTRONIC PLUS cover in the radiator grill is dirty.
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 its function is impaired due to heavy rain or snow.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
A warning tone also sounds.
DISTRONIC PLUS is operational again and the display message
disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R the system is within the operating temperature range.
If the display message continues to be displayed:XClean the DISTRONIC PLUS cover in the radiator grill
( Y page 456).XClean the bumpers ( Y page 456).XRestart the engine.DISTRONIC PLUS
InoperativeDISTRONIC PLUS is faulty. BAS PLUS and PRE-SAFE ®
Brake may
also have failed. A warning tone also sounds.XVisit a qualified specialist workshop.DISTRONIC PLUS
OverrideYou have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.XTake your foot off the accelerator pedal.DISTRONIC PLUS
--- mphAn activation condition for DISTRONIC PLUS is not fulfilled.XCheck activation conditions for DISTRONIC PLUS
( Y page 325).406Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsCheck
TiresGRisk of accident
The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XCorrect the tire pressure ( Y page 487).XIf necessary, change a wheel ( Y page 502).Caution
Tire DefectGRisk of accident
The tire pressure in one or more tires has dropped suddenly. The
wheel position is displayed in the multifunction display.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 502).Tire Pressure
Please RectifyThe tire pressure is insufficient in at least one of the tires or the
tire pressure difference between the wheels is too great.XCheck the tire pressures at the next opportunity. If necessary,
correct the tire pressure ( Y page 487).XRestart the tire pressure monitor ( Y page 489).Wheel Sensor(s)
MissingThere is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.XHave the faulty tire pressure sensor replaced at a qualified
specialist workshop.Tire Pressure
Monitor
Currently
UnavailableNo signals are being received from the tire pressure sensors due
to radio interference. The tire pressure monitor is temporarily
malfunctioning.XDrive on.
The TPMS restarts automatically as soon as the problem has
been solved.h
Tire Press.
Warning Caution
Tire MalfunctionGRisk of accident
The tire pressure in one or more tires has dropped suddenly.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 502).408Display messagesOn-board computer and displays