Disk Changer Function - Gf82.85-P-2032CE

MODEL 204.0/2 as of model year 2009 with CODE 510 (Audio 20 with CD changer) without CODE 511 (Audio 50 APS with DVD changer) without CODE 512 (COMAND APS with DVD changer)

MODEL 204.0/2 as of model year 2009 with CODE 511 (Audio 50 APS with DVD changer) without CODE 510 (Audio 20 with CD changer) without CODE 512 (COMAND APS with DVD changer)

MODEL 204.0/2 as of model year 2009 with CODE 512 (COMAND APS with DVD changer) without CODE 510 (Audio 20 with CD changer) without CODE 511 (Audio 50 APS with DVD changer)

MODEL 204.0 as of model year 2009 with CODE 528 (COMAND with DVD changer) without CODE 510 (Audio 20 with CD changer) without CODE 511 (Audio 50 APS with DVD changer) without CODE 512 (COMAND APS with DVD changer)

MODEL 204.3/9 with CODE 510 (Audio 20 with CD changer)

MODEL 204.3/9 with CODE 512 (COMAND APS with DVD changer)

MODEL 204.9 with CODE 511 (Audio 50 APS with DVD changer)

MODEL 204.9 with CODE 528 (COMAND with DVD changer)

Function requirements for disk changer in general

Circuit 30g ON
Transport mode not active

The CD/DVD changer is operated using the buttons on the audio equipment or using the Audio/COMAND control panel (A40/9).

Disk changer, general

The CD/DVD changer is integrated in the audio equipment and contains a magazine for up to six CDs or DVDs. The CD/DVD changer enables the following function sequences to be performed:

Load CD or DVD function sequence
Eject CD or DVD function sequence

Shown on COMAND controller unit with code (512) COMAND APS incl. DVD changer (model 204.0 as of 1.3.2011)

Fig 1: Identifying Disk Changer Components

Courtesy of MERCEDES-BENZ USA

Load CD or DVD function sequence

When the Load button is pressed on the audio equipment, the "Cartridge menu" appears on the Audio/COMAND display (A40/8), including details on the last selected CD/DVD slot in the CD/DVD changer. The desired CD/DVD slot can be selected by turning or pressing the controls on the Audio/COMAND control panel to the left or right. Selection is confirmed by pressing vertically onto the Audio/COMAND control panel.

The desired CD/DVD slot can also be directly selected using the keypad (1 to 6) on the audio equipment.

A CD or DVD must not be inserted until the corresponding request to do so appears on the Audio/COMAND display, e.g. "Please insert Disc 2". After inserting the CD or DVD into the CD/DVD drive the Audio/COMAND display shows a message, e.g. "Disc 2 loading...".

The duration of the loading process can vary depending on the type of data storage device involved.

Once the CD or DVD is loaded, the display changes back to the "Cartridge menu". If no CD or DVD is inserted, the display also changes after t = 20 s back to "Cartridge menu". A loaded CD or DVD is shown in the "Cartridge menu".

The "Fill up empty spaces" menu enables several CDs or DVDs to be loaded one after the other. A CD or DVD must not be inserted until the corresponding request to do so appears on the Audio/COMAND display, e.g. "Please insert Disc 3". The audio equipment then starts to load the empty CD/DVD slots.

The data exchange between the "audio equipment", the Audio/COMAND display and the Audio/COMAND control panel takes place via the telematics CAN (CAN A). In vehicles with code (255) AMG Performance Media, the signals from the Audio/COMAND control panel are forwarded over the telematics CAN to the AMG Performance Media control unit (N125/3) first, and then routed over the telematics CAN to the audio equipment. Video signals are sent over a low voltage differential signal (LVDS) line from the audio equipment to the Audio/COMAND display, in vehicles with code (255) AMG Performance Media over the AMG Performance Media control unit.

Eject CD or DVD function sequence

After pressing the Load button on the audio equipment, the Audio/COMAND display shows the "Cartridge menu" including details on the last selected CD/DVD slot in the CD/DVD changer. The desired CD/DVD slot can be selected by turning or pressing the controls on the Audio/COMAND control panel to the left or right. Selection is confirmed by pressing vertically onto the Audio/COMAND control panel.

The desired CD/DVD slot can also be directly selected using the keypad (1 to 6) on the audio equipment.

While the CD or DVD is ejected, a message appears in the Audio/COMAND display (e.g. "Disk 2 being ejected..."). As soon as the CD or DVD appears in the CD/DVD drive slot, a corresponding message is shown (e.g. "Please remove disc 2").

Once the CD or DVD is removed, the display changes back to the "Cartridge menu". If the CD or DVD is not removed, the CD or DVD is loaded again.

The "Eject all" menu enables all the loaded CDs or DVDs to be removed one after the other. As soon as the CD or DVD appears in the CD/DVD drive slot, a corresponding message appears (e.g. "Please remove disc 3"). Once the CD or DVD is removed from the CD/DVD drive slot, the next CD or DVD is ejected until the entire CD/DVD cartridge is empty. An ejected CD or DVD is shown in the "Cartridge menu" as an empty CD/DVD slot.

The eject procedure can be stopped at any time by pressing the load button on the audio equipment or the "Back" button (A40/9s2) of the Audio/COMAND control panel.

Data exchange between the audio equipment, the Audio/COMAND display and the Audio/COMAND control panel takes place over the telematics CAN. In vehicles with code (255) AMG Performance Media, the signals from the Audio/COMAND control panel are forwarded over the telematics CAN to the AMG Performance Media control unit first, and then routed over the telematics CAN to the audio equipment. Video signals are sent over a low voltage differential signaling line from the audio equipment to the Audio/COMAND display, in vehicles with code (255) AMG Performance Media over the AMG Performance Media control unit.

Overview of system components, telematics

GF82.85-P-9999CE