9 Introduction
Operating safety
Operating safety
WarningG
Any alterations made to electronic compo-
nents and the software can cause malfunc-
tions.
The radio, amplifier, satellite radio*,
CD changer*, navigation module* and tele-
phone* are interconnected. Therefore,
when one of the components is not opera-
tional or has not been removed/ replaced
properly, the function of other components
may be impaired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
by an authorized Mercedes-Benz Center.
WarningG
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still and operate the system only when road,
weather and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
COMAND supplies you with information to
help you select your route more easily and
guide you conveniently and safely to your
destination. For safety reasons, we encour-
age the driver to stop the vehicle in a safe
place before answering or placing a call, or
consulting the COMAND screen to read nav-
igational maps, instructions, or downloaded
information.
WarningG
While the navigation system provides direc-
tional assistance, the driver must remain
focused on safe driving behavior, including
attention to traffic and street signs, and
should utilize the system's audio cues while
driving.
The navigation system does not supply any
information on stop signs, yield signs, traffic
regulations or traffic safety rules. This al-
ways remains your personal responsibility
when you drive. DVD maps do not cover all
areas nor all routes within an area.
65 Audio
CD changer* operation
Permissible bit and scan rates
Fixed and variable bit rates up to 320 kbps
are permissible.
The permissible scan rates can be found in
the table below.
.
Tips on copyright
Please also refer to the tips on copyright
(
page 57).
Playing MP3 CDs
The CD changer can play MP3 CDs as well
a s a u d i o C D s . A l l t h e C D c h a n g e r f u n c t i o n s
listed below also apply to the playing of
MP3 CDs.
When playing MP3 CDs, only the first 99
tracks will be played back in successive or-
der. After that, playback will begin with
track 1of the MP3 CD if
Repeat CD is select-
ed (
page 74). Folder selection is not pos-
sible.
i
In everyday speech, the MPEG1 Audio
Layer 3 format has been replaced by
the designation “MP3”.
File formatScan rate
MPEG1
Audio Layer 332 kHz, 44.1 kHz,
48 kHz
MPEG2
Audio Layer 316 kHz, 22.5 kHz,
24 kHz
MPEG2.5
Audio Layer 38 kHz, 11.025 kHz,
12 kHz
i
It is recommended to use MP3 tracks
with a bit rate of128 kbps or higher and
with a scan rate of 44.1 kHz or higher.
Lower rates may impair quality. This is
particularly true if the sound function
LOGIC7 Surround has been activated.
i
Depending on the complexity of the di-
rectory structure, playback of the first
track may in some cases be delayed.
Loading CDs
WarningG
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and oper-
ate the audio system only when road, weath-
er and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
