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COMAND voice control function - GF82.85-P-3018G

MODEL 463.247 /248 /254 /270 /303 /340 /341 up to 31.8.08 with CODE (ET4) COMAND operating and display system with CODE (EL1) LINGUATRONIC voice control system as of model year 2007 model year 07.5, YoM 07 

MODEL 463.249 /271 up to 31.8.08 as of model year 2007 

Shown with code (E66) Sound system (Harman/Kardon) 

Fig 1: COMAND Voice Control Function Diagram
G07705810Courtesy of MERCEDES-BENZ USA

Function requirements 

General information on voice control 

The following functions of the driver information system can be called up and operated via the voice control system (VCS [SBS]).

The system can be controlled by voice by spelling out or entering complete words.

The VCS [SBS] is activated by pulling the VCS [SBS] switch toward the driver. An acoustic signal is emitted after activation has taken place. It is deactivated by pressing the VCS [SBS] switch.

Voice control function sequence 

The actuation of the VCS [SBS] switch is read in by the steering column tube module and sent to the COMAND operating, display and controller unit via the interior CAN. This transmits the activation command via MOST to the voice control system control unit, which activates the integrated voice recognition of the VCS [SBS].

This is announced to the user through an acoustic signal (beep). At the same time, the hands-free system microphone group is activated and the audio system's radio components are muted to ensure that the user input is not distorted in any way.

The signals of the hands-free system microphone group are read in by the voice control system control unit, digitized and sent via MOST to the COMAND operating, display and controller unit.

Voice output 

With model 463.249/271 or with model 463.248/270/341 with code (E66) Sound system (Harman/Kardon) the voice output is provided by the COMAND operating, display and controller unit via the sound system amplifier to the speakers.

On model 463.248/270/341 without code (E66) Sound system (Harman/Kardon) and model 463.247/254/303/340 voice output is issued by the COMAND operating, display and controller unit via direct lines at the speakers.

  Component description for voice control system (VCS [SBS]) control unit A35/11 GF82.70-P-4300G
  COMAND operating, display and controller unit, component description A40/3
Model 463.247/254/303/340/341, model 463.248/270 except code (498) Japan version
GF82.85-P-3134G
    Model 463.249/271 GF82.85-P-3134GA 
  Inside rearview mirror unit, component description A67 GF68.49-P-2105G
  Speaker system, component description H4/1, H4/2, H4/5, H4/6, H4/7, H4/8, H4/27, H4/33 and H4/34; H4/29 (model 463.249/271 or model 463.248/270/341 with code (E66) Sound system (Harman/Kardon)) GF82.62-P-4220G
  Sound amplifier, component description N40/9
Model 463.249/271 or model 463.248/270/341 with code (E66) Sound system (Harman/Kardon)
GF82.62-P-3009G
  Electronic ignition/starter switch control unit (EIS), component description N73 GF80.57-P-6000G
  Steering column tube module, component description N80 GF54.21-P-6050G
  Voice control system (VCS [SBS]) switch, component description S93/2 GF82.70-P-4301G