Data transfer between COMAND and instrument cluster, function - GF82.85-P-3008AB

MODEL 215, 220 with CODE (352a) COMAND operating and display system with CODE (494a) USA version 

Multifunction steering wheel controls shown on model 220 up to 31.5.00 

Multifunction steering wheel controls shown on model 215 and 220 as of 1.6.00 

COMAND operation on multifunction steering wheel 

Using the multifunction display (A1p13) on the instrument cluster (A1) and the switch on the multifunction steering wheel the following COMAND-controlled systems can be operated and information concerning the relevant systems displayed:

• Audio radio, CD changer (optional), cassette drive
• Navigation
• Telephone

All data exchange between the instrument cluster (A1) and the COMAND operating, display and control unit (A40/3) takes place via the interior CAN (CAN-B)

All button presses on the multifunction steering wheel are read in by the steering column module (N80) (voltage coded). The steering column module (N80) sends the relevant messages over the interior CAN (CAN-B). The instrument cluster (A1) interprets the data using the system currently displayed on the multifunction display (A1p13) (audio, navigation, telephone). This interpretation is necessary because the operation of the buttons depends on the content of the multifunction display (A1p13). The interpreted CAN data from the instrument cluster (A1) is not valid for the COMAND operating, display and control unit (A40/3).

Operating and display options on the multifunction display (A1p13) 

Radio 

Display:

• Set frequency band and where applicable memory location number (e.g. FM1)
• Information whether station search was accomplished with frequency or stored station list ("SP")

Operation:

• Volume
• Station search with station list or frequency

CD changer (optional) 

Display:

• Number of CD currently playing
• CD track number

Operation:

• Volume
• Selection of track

Cassette drive 

Display:

• Cassette side currently playing

Operation:

• Volume
• Rewind to start of current track
• Wind forward to next track

Navigation 

Display:

• Street vehicle is currently on
• Next street to turn off into
• Distance to next turn-off
• Turnoff arrow

Operation:

• Volume of voice output

Telephone 

Display:

• Name of provider
• Vehicle outside transmit or receive range of telephone network
• Telephone number (if stored) or name of caller (if transmitted via radio)

Operation:

• Volume
• Selection of name from stored phone directory, display of phone number and memory location number of party being called.
• Accepting a call
• Dial repeat

Instrument cluster (IC), location/task

GF54.30-P-3039S