Navigation mode, function - GF82.85-P-2012CWJ

MODEL 204.0 /2 with CODE (498) Japan version up to Model Year 8 

Function requirements 

• "Circuit 15 ON" status
• COMAND controller unit (A40/3) activated via "ON" button
• "Navi" menu selected
• No fault on global positioning system (GPS) antenna system
• Signals available from at least 3 GPS satellites
• Current navigation data loaded

General information 

The navigation mode is an assistant function which supports the driver in reaching his/her destination without diverting his/her attention from traffic. This is done by:

• Route planning, route calculation and destination-oriented navigation
• Visual driving instructions in form of pictograms
• Intersection zoom
• Acoustic driving recommendations
• Display of navigation maps

The location of the vehicle and the direction and distance to the destination are determined with the aid of the navigation system.

The navigation system consists of several subfunctions:

• General navigation mode
• Position finding and destination-oriented navigation
• Route guidance through voice output

The position finding and destination-oriented navigation subfunctions along with route guidance through voice output are described in separate documents.

Operating instructions 

The navigation system can be operated using the following components:

• Left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111)
• Audio/COMAND control panel (A40/9)
• Control buttons on the COMAND controller unit
• Voice control via voice control system (VCS [SBS])

General navigation mode function sequence 

The navigation processor integrated into the COMAND controller unit calculates the data entered for reaching the destination (destination-oriented navigation). The route is then calculated taking the configured options into consideration. If it should not be possible to adhere to the options, then the configured options are ignored for the stretch in question and a corresponding message is displayed as well as acoustically sounded. The configured criteria and options can be displayed and changed. Once calculated, the route is displayed using arrow pictograms on the Audio/COMAND display (A40/8) and this information is also issued as an acoustic notification: "The route is calculated". If the vehicle is no longer moving on the pre-calculated route, then the route is recalculated. If the recalculated values are plausible for the navigation system, then the modified route is displayed.

The control signals of the left multifunction steering wheel button group and the right multifunction steering wheel button group take the following path:

• Local Interconnect Network (LIN)
• Steering column module control unit (N80)
• Chassis CAN
• Instrument cluster (A1)
• Interior CAN
• COMAND controller unit

When entered using the Audio/COMAND control panel, the control signals are sent via the telematics CAN to the COMAND controller unit.

When directly entered using the control buttons on the COMAND controller unit, the control signals are processed within the COMAND controller unit.

Voice input takes place via the voice control system microphone (B25/7). Words spoken into the VCS [SBS] microphone are converted into an electrical signal and forwarded via a discrete line to the COMAND controller unit.

	Position finding and destination-oriented navigation, function		GF82.61-P-2010CWJ
	Route guidance through voice output, function		GF82.61-P-2011CWJ