Mercedes-Benz ML320. Manual — part 231

RADIO MODE, FUNCTION - GF82.60-P-2001GI

MODEL 163 as of 1.9.01 with CODE (522) Modular control system (MCS) radio USA with CODE (357)
Navigation system - additional unit with CODE (818b) Single CD player - additional unit with CODE
(491) U.S. version

(except 210.2)
except code
352a

Antenna amplifier module,
location/task/design/ function

Models 203.0/7,
209.3

GF82.62-P-3105PP

Model 203.2

GF82.62-P-3105PS

Model 209.4

GF82.62-P-3105QA

Additional fan for radio/navigation
unit, location/ task

Models 203.0/2/7 as
of 1.6.03

GF82.61-P-4110P

Rear window antenna,
location/task/design/ function

Models 203.0/7,
209.3

GF82.62-P-3106PP

Model 203.2

GF82.62-P-3106PS

Windshield antenna,
location/task/design/ function

Model 209.4

GF82.62-P-3112Q

Sound amplifier,
location/task/design/function

Models 209.3/4 with
code (810) sound
system
Models 203.0/2/7 up
to 23.4.04 with code
(810) Sound system

GF82.62-P-3100Q

Models 203.0/2/7 as
from 24.4.04 with
code (810) sound
system, except code
(498) Japan version,
except code (494a)
USA version

GF82.62-P-3100PM

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 37: Identifying Radio Mode Function

The MCS radio menu is activated by pressing the "RADIO" button on the radio and navigation module
(A2/56) .

Radio reception, function

The rear window antenna (A2/32) receives the high frequency FM and AM signals. The music, voice and/or
data signal is superimposed on these high-frequency carriers. The radio antenna splitter (A2/5) decouples the
AM signals from the heater current in the rear window and relays them to the FM/AM amplifier (A2/18) ,
while the FM signals are transmitted directly from the rear window to the FM/AM amplifier (A2/18) . The
FM/AM amplifier (A2/18) filters the frequencies of the radio frequency bands from the high frequency signals
received and amplifies these signals.

The amplified signals are then transmitted to the radio tuner integrated into the radio and navigation module
(A2/56) by the FM/AM amplifier (A2/18) via a common co-axial line (FM, AM )

The radio receiver demodulates the high-frequency signals, i.e. it separates the useful information (audible
frequencies) from the carrier signal (inaudible).

The demodulated audio signals are amplified and converted into sound signals by the vehicle loudspeakers.

The MCS radio system offers the following possibilities for station selection and adjustment:

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me



manual station search is activated by actuating the "joystick "to left or right. The station search feature
stops at the next station found, even when the" joystick " continues to be actuated.



Automatic station search with scan function can be activated by pressing the multifunction " Scan " key.
Each station received in the frequency range is played for approx. 8 s This function is possible only in
the forward direction. When activated " Scan " appears inverted on the display.



Manual fine coordination

The frequency can be changed when the" joystick " is moved up or down.



Station selection from memory

For each frequency range (memory FM, AM ) there are 10 memory buttons available. Press button of
number block approx. 2 s to store a station. When a station is stored it is confirmed by an acoustic signal.
Any station stored previously is written over.

In the frequency range WB (weather forecast) 7 stations are preset. These stations can be called by

momentarily pressing the desired number of the number block.



Station selection with frequency input via number block Pressing the" *" button followed by actuation of
the number keys allows direct entry of the desired frequency. Undesired entries can be erased with the"
Clear " button.



Station selection from the FM or AM station list by pressing the multifunction key" List " all stored
stations in the momentary frequency range are listed. Exit station list by pressing FM or AM
multifunction key .



Automatic storage

The "Auto" multifunction key (when pressed for longer than 2 s ) starts automatic storage of the 10
strongest stations in the corresponding frequency range. The stations are stored according to the strength
of the received signals in decreasing order.

CD-PLAYER MODE, FUNCTION - GF82.60-P-2002B

MODELS 163, 168, 170, 203.0 /2 /7, 208, 209.3 /4, 210 with CODE (353) Audio 30 APS

CD's can be played on the CD drive integrated into the radio and navigation unit (A2/56) or with the CD player
with changer (in glove compartment) (A2/6). The audio data are transmitted over the Digital Data Bus (D2B).
The CD disk drive is a double-speed standard CD disk drive, which is suitable both for playing back audio CDs

Volume/tone adjustments,
function

GF82.60-P-2003GI

Antenna system (AS),
location of components

GF82.62-P-0001-03D

FM/AM antenna amplifier,
location/purpose/
design/function

GF82.62-P-4101A

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

and for reading and loading navigation data from navigation data CDs.

A special navigation CD must be inserted for navigation purposes.

The CD player integrated into the radio and navigation unit (A2/56) provides the following audio functions:



Fast forward or reverse (music search) The music played is audible during fast forward or reverse.



"Scan" function

Each track on a CD is played for 8 s. After a complete run through, the scan function is automatically
terminated.



"Random" function

All the tracks on a CD are played according to a random selection.



"Repeat" function

The current track is repeated.



"Display" function

The number and elapsed playing time for the current track, the total playing time and the number of tracks
on the CD are displayed.

Each CD includes a permanently stored table of contents (TOC record). The table of contents (TOC entry)

contains information such as the number of tracks on a CD and the CD's total playing time.

CD playback is automatically interrupted by the following functions (pause function):



Traffic messages and public warning messages over the radio data system (RDS)



Incoming telephone calls

CD playback is continued at the position at which the interruption took place. No part of the track is skipped
during the pause function.

The CD playback volume is only reduced during navigation system voice output.

CD player with changer,
location/task/design/ function

Models 209.3/4

GF82.64-P-3113Q

Models 203.0/2/7
with code (819) CD
changer 6 disc

GF82.64-P-3113PA

Models 163, 208,
210 with code (819)

GF82.64-P-3113B

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me