Voice control function - GF82.70-P-3020CW

MODEL 204.0 with CODE (527) COMAND APS with single DVD drive (with navigation) 

MODEL 204.0 with CODE (512) COMAND APS with DVD changer 

MODEL 204.2 with CODE (527) COMAND APS with single DVD drive (with navigation) 

MODEL 204.2 with CODE (512) COMAND APS with DVD changer 

Function requirements 

• Status "circuit 15R ON"
• The cockpit management and data system (COMAND) is authorized and in perfect working order
• No faults in the voice control system microphone (B25/7)

General information on voice control 

The voice control system VCS [SBS] can be used to call up and regulate the individual functions in the driver information system. The VCS [SBS] is integrated into the COMAND controller unit (A40/3). The system can be controlled by voice by spelling out or entering complete words.

Operating instructions 

The voice control is activated or deactivated using the buttons on the multifunction steering wheel (MFL):

• Voice control system ON button (S111s4)
• "Back" and voice control system OFF button (S110s4)

Voice control function sequence 

The control signal for the VCS [SBS] on button is forwarded over the following components to the COMAND controller unit:

• Steering LIN
• Steering column module control unit (N80)
• Chassis CAN
• Instrument cluster (A1)
• Interior CAN

The voice input takes place via the attendant voice control system microphone, which is connected over a discrete line to the COMAND controller unit. The spoken word is converted by the voice control system microphone into an electrical signal and forwarded to the COMAND controller unit. Voice output takes place via the following speakers:

• Left front door speaker (H4/1)
• Right front door speaker (H4/2)
• Center instrument panel speaker (H4/27)

These are discretely connected to the sound system amplifier control unit (N40/3) (with code (810) Sound system).

For vehicles except code (810) Sound system voice output is performed over discrete lines directly by the COMAND controller unit over the following speakers:

• Left front door speaker
• Right front door speaker
• Center instrument panel speaker

	Electrical function diagram for COMAND voice control	with CODE (810) Sound system	PE82.85-P-2056-99FAA
	COMAND controller unit, component description	A40/3 With code (527) COMAND APS with Single DVD disk drive (with navigation)	GF82.85-P-3136CW
		A40/3 With code (512) COMAND APS with DVD changer	GF82.85-P-3136CWA
	Audio tuner control unit, component description	N40/3 with CODE (810) Sound system	GF82.62-P-3132CWS
	Speaker system, component description	H4/1, H4/2, H4/3, H4/4, H4/27 Except code (810) Sound system	GF82.62-P-4220CW
		H4/1, H4/2, H4/3, H4/4, H4/27, H4/29, H4/54, H4/57 with CODE (810) Sound system	GF82.62-P-4220CWS
	Handsfree system microphone, component description	B25/7	GF82.70-P-4121CW