Operating audio player or audio media
Audio data from various audio devices or
media can be played, depending on the
equipment installed in the vehicle.
XSwitch on the audio system or COMAND
and select the audio device or medium (see
the separate operating instructions).XPress the = or ; button on the
steering wheel to select the Audio menu.
CD changer display (example)
:Current trackXTo select the next/previous track:
briefly press the 9 or : button.XTo select a track from the track list
(rapid scrolling): press and hold the
9 or : button until the desired track
has been reached.
If you press and hold the 9 or :
button, the rapid scrolling speed is increased.
Not all audio devices or media support this
function.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and name of the track.
The current track does not appear in audio
AUX mode ( Auxiliary audio mode: external
audio source connected).
Video DVD operation
XSwitch on COMAND and select video DVD
(see the separate operating instructions).XPress the = or ; button on the
steering wheel to select the Audio menu.
DVD changer display (example)
:Current sceneXTo select the next or previous scene:
briefly press the 9 or : button.XTo select a scene from the scene list
(rapid scrolling): press and hold the
9 or : button until the desired
scene has been reached.
Telephone menu
Introduction
You can establish a Bluetooth ®
connection to
the audio system or to COMAND (see the
separate operating instructions).
GWARNING
A driver's attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we
recommend that you pull over to a safe
location and stop before placing or taking a
telephone call. If you choose to use the
telephone while driving, please use the hands-
free device and only use the telephone when
weather, road and traffic conditions permit.
Some jurisdictions prohibit the driver from
using a mobile phone while driving a vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h ), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
XSwitch on the mobile phone and audio
system or COMAND (see the separate
operating instructions).XPress the = or ; button on the
steering wheel to select the Tel menu.202Menus and submenusOn-board computer and displays
Fuel consumption
Ethanol (E85) contains less energy per gallon
than gasoline. To ensure that the engine
performance with ethanol (E85) is similar to
that when using gasoline, the engine must
burn more ethanol. As a result, it is to be
expected that fuel consumption will increase
when using ethanol fuel (E85), compared to
gasoline.
Maintenance
Inform your authorized Mercedes-Benz
Center that you are operating or have
operated the vehicle with ethanol (E85).
Low outside temperatures
Starting times may significantly increase at
temperatures below 32 ‡ (0 † ). At low
outside temperatures, Mercedes-Benz
recommends the use of an auxiliary heater.
For further information, consult an authorized
Mercedes-Benz Center.
Rough idling may also be experienced at low
outside temperatures until the engine is fully
warmed up.
Ethanol (E85) is unsuitable for use if outside
temperatures fall below 14 ‡ (-10 † ).
High outside temperatures
At outside temperatures above 95 ‡ (35 † ),
the time required for the starting procedure
may increase and be accompanied by rough
idling following the start.
Fuel requirements
Use only premium-grade unleaded gasoline.
The octane number should be at least 91.
Details can be found on the gas pump. The
octane number is the average value of the
Research Octane Number (RON) and the
Motor Octane Number (MON): (RON +
MON) / 2, also known as knock resistance.
Reformulated gasoline (RFG) and/or
unleaded gasoline with additives can be used.
However, the concentration of additives in
the fuel must be less than 10%, e.g.
R Ethanol
R TAME
R ETBE
R IPA
R TBA
For MTBE, the concentration should not
exceed 15%.
The concentration of methanol in gasoline
including other additives must not exceed 3%.
Using mixtures of methanol and ethanol is not
permitted. Gasohol, a mixture of 10% ethanol
and 90% unleaded gasoline, can be used.
All of these mix fuels must fulfill the fuel
requirements, e.g.:
R knock resistance
R boiling point
R vapor pressure
Additives in gasoline
One of the main problems of poor fuel quality
is the forming of deposits that are created
during the gasoline combustion process.
Mercedes-Benz recommends that you use
fuel brands that have the additives.
Deposits may form if you use fuels without
additives over a longer period of time. These
deposits are most likely to form on the inlet
valves and in the combustion chamber.
This could lead to engine problems, e.g.:
R longer engine warm-up phase
R uneven idle
R engine noise
R misfiring
R loss of power
Carbon deposits may form if the availability
of gasoline with relevant additives is
insufficient (in certain regions). In this case,
Mercedes-Benz recommends the use of
348Service products and capacitiesTechnical data
