Mercedes-Benz ML320. Manual — part 246

Fig. 72: Identifying Roof Antenna

SURVEY OF SYSTEM COMPONENTS FOR ANTENNA SYSTEM (ATS), LOCATION/ TASK/DESIGN/FUNCTION - GF82.62-
P-9999GHZ

MODEL 163 as of 1.9.01

Telephone antenna,
location

The roof antenna (A2/22) is located in
the rear area of the vehicle roof.

Telephone antenna,
purpose



Conversion of electromagnetic
radio waves into electrical
voltages and vice versa



Transmitting/receiving telephone
signals (data and voice output)



Lobar bundling of the
transmission energy



Detecting the matching frequency
range

Rear window antenna,
location/task/design/ function

GF82.62-P-3106GH

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

GF82.62-P-4101A

Telephone antenna,
location/task

GF82.62-P-4105GH

GPS/telephone roof antenna,
location/task/ design/function

GF82.70-P-4111A

E-Call backup antenna,

GF82.95-P-4205GH

2001 Mercedes-Benz ML320

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

me

CD PLAYER WITH CHANGER, LOCATION - GF82.64-P-3113-01GI

The CD player with changer is located behind the access flap in the right side cover of the trunk.

Fig. 73: Identifying CD Player With Changer Location

CD PLAYER WITH CHANGER, FUNCTION - GF82.64-P-3113-02GI

Controlling CD player

The CD player with changer (in trunk) (A2/6) is controlled by the radio and navigation module (A2/56) via
the digital data bus (D2B).

The CD player generates reports on the following operating conditions:



No magazine in CD changer



Magazine assignment (only with music CD)



Number of current CD



Number of current title



List of occupied slots (CDs)



Title number per disc



Current operating state (acoustic playback of radio signals, pause, etc.)

The messages are stored on the digital data bus D2B ) and interpreted by the radio and navigation module
(A2/56) .

CD playback

The audio data is stored digitally on the CD-ROM . The audio CD is driven by a motor in the CD-player with
changer (in trunk) (A2/6) .

location/task

Contents - function description
of antenna system (ATS)

GF82.62-P-0999GHZ

2001 Mercedes-Benz ML320

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

me

The laser-optical device scans the non-labeled side of the rotating CD without making contact and converts the
digital optical signals into electrical signals. Small interruptions in the data flow of the laser optics caused by
scratches or contamination on the audio CD are compensated by the D/A converter supplementing the missing
values .

The electrical signals are then decoded in the CD player with changer (in trunk) (A2/6) and transmitted via
the digital data bus ( D2B ) to the radio and navigation module (A2/56) via the audio signal processing or
when the sound amplifier (A2/13) (code 810) is installed to the loudspeakers.

Jumps and interruptions during playback

On bad roads or in the event of heavy vibrations , jumps and interruptions can occur during playback. In
such cases do not start CD mode until better road conditions are present.

In the event of wet weather conditions and strong deviations in the ambient temperatures moisture can collect in
the CD player housing (condensation formation). This could also lead to malfunctions in the playback. In such
cases provide for sufficient ventilation of the CD player and the trunk.

CD PLAYER WITH CHANGER, LOCATION/TASK/DESIGN/FUNCTION - GF82.64-P-3113B

MODELS 163, 208, 210, 215, 220 with CODE (819) 6-disc CD changer

MODELS 208, 210, 215, 220 with CODE (819a) CD changer with CODE (498) Japanese version

Shown on model 220 (as of 1.9.02)

Fig. 74: Identifying CD Changer (In Trunk) Location

CD player with changer,
location

The CD player with
changer (in the trunk)
(A2/6) is located in the
trunk near the left side
wall.

Model 163

GF82.64-P-3113-01GI

Models 208, 210

GF82.64-P-3113-01D

Models 215, 220 with

GF82.64-P-3113-01F

2001 Mercedes-Benz ML320

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

me

CD PLAYER WITH CHANGER, LOCATION/PURPOSE/DESIGN/FUNCTION - GF82.64-P-3113GI

MODEL 163 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 (819) 6-disk
CD changer in trunk with CODE (491) U.S. version

code 498

Models 215, 220 without
code 498

GF82.64-P-3113-01E

CD player with changer,
purpose



Playing audio
compact discs (CD)



Changing CDs
contained in the
magazine

CD player with changer,
design



6-slot CD changer
magazine

only: 12-slot

CD changer
magazine



Digital Data Bus
(D2B) interface

The factory planned
installation position for
the CD changer is vertical,
whereby other installation
positions are possible by
adaptation of the spring
locations.

CD player with changer,
function

Models 208, 210

GF82.64-P-3113-02C

Model 215, 220

GF82.64-P-3113-02B

2001 Mercedes-Benz ML320

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

me