COMAND controller unit, component description - GF82.85-P-3136CWJ

WARNING: This page is about a different car, the 2011 Mercedes-Benz C300, 2010 Mercedes-Benz C300, 2009 Mercedes-Benz C300, and 2008 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.

MODEL 204.0/2 with CODE (498) Japan version

Illustrated on model 204.0

Fig 1: Locating COMAND Controller Unit

Courtesy of MERCEDES-BENZ USA

Location

The COMAND controller unit is installed into the center console.

Task

The COMAND controller unit centrally actuates the following systems:

Audio systems (radio mode, CD mode and DVD mode)
Navigation system
Telematics system (telephone mode, email, Internet)
Video systems (TV, DVD)

Design

Fig 2: Identifying COMAND Controller Unit

Courtesy of MERCEDES-BENZ USA

The following are integrated in the COMAND controller unit:

Function keys
ON button
DVD drive
Central computer
Navigation processor
PCMCIA interface

Function

The panel buttons on the COMAND controller unit are read in and supplied to the central computer. Button actuations are further processed in the central computer and sent to additional system components as messages via the telematics CAN or interior CAN. If the ON button on the COMAND controller unit is pressed, the COMAND controller unit is switched on.

The volume for the set audio source is regulated by turning the ON button. Pressing the function keys enables the user to switch to the desired system components.