86 Rear Audio/Video*
Rear Audio operation*
Push the joystick g or G to select
Off.
Press E.
The Rear Audio operation* is switched
off.
To switch on again, select an audio
source and press E.
If the position of the volume knob 1 is
in, push it in and then release.
Turn the knob to the desired volume
level.
1Two volume knobs
Switching off
Adjusting the volume
i
Both volume knobs are located in the
Rear climate control panel at the back
of the center console. There are two
possible positions for each knob, in or
out. Neither position has an effect on
the audio signal to the headset.
Volume adjustment is only possible
when the knob is out.
228 Glossary
Regional code
The regional code prevents video DVDs
from being played on DVD players not
having the same code as the ->DVD.
The factory setting of the Rear Seat En-
tertainment* CD/DVD player is code
1. It can only play back video DVDs also
having code 1 or no code.
Roaming
For this function, the telephone uses
the telephone network of a contract
partner. The ROAMING indicator in the
COMAND display indicates that a call is
being made using a contract partner.
Root directory
The uppermost directory on a storage
medium.
Scan rate (MP3)
Indicates the frequency at which volt-
age samples are taken during the con-
version of an analog signal into a digital
signal. The analog-to-digital converter
converts the samples into digital sig-
nals.Service source
This includes the systems telephone*
and navigation (voice output during
destination guidance)
SIM
(Subscriber Identity Module)
Card provided by the GSM telephone
service provider. Necessary for acces-
sing a mobile communication network.
SMS
(S
hort Message Service)
With this function you can receive and
read short text messages (if SMS ser-
vice is provided by your provider)
Soft keys
Keys that activate different functions.
Function of key depends on the selec-
ted operating mode.
Subtitle
A textual representation of the spoken
audio in a video program.Tele Aid*
(Tele
matic Alarm Identification on De-
mand)
The Tele Aid system consists of three
types of response: automatic and ma-
nual emergency, roadside assistance,
and information. Tele Aid is initially
activated by completing a subscriber
agreement and placing an acquain-
tance call. Refer also to the vehicle
operating instructions.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is char-
ged, properly connected, not damaged,
and cellular and GPS coverage is avai-
lable.
Unlock code
Your unlock code prevents unauthori-
zed persons from using your telephone.
The unlock code is a number string
you must enter when switching
on the telephone if you have locked
the phone before turning it off or if the
phone is set to lock automatically.
