Dynamic route guidance, function with code 525 and 527 - GF82.61-P-4003SK

MODEL 171.4 with CODE (525) MB Audio 50 APS radio 

MODEL 171.4 with CODE (527) COMAND APS with single DVD drive (with navigation) 

The navigation processor of the radio and navigation unit (A2/56) with code (525) Audio 50 APS MB radio is integrated into the control unit. On the COMAND operating, display and control module (A40/3) with code (527a) COMAND APS (with navigation) the external navigation module is called navigation processor (N41/1).

Determination of location is the calculation of the vehicle's current position. Even by opening the driver's door or with "circuit 15R ON" this is activated and carried out by the navigation processor (N41/1). During the switch-on phase (software is loaded), only the basic position finding is available. Once the ignition is switched off all important position finding parameters are stored during a run-on time of 30 minutes.

Three complementary methods are utilized for continuous position finding. This ensures very accurate and reliable position finding.

These methods are:

• Basic position finding
• Map-supported map matching
• Global positioning system location finding

For manual input of the vehicle location, it is possible to enter the location manually at the radio and navigation unit (A2/56) with code (525) Audio 50 APS MB radio and COMAND operating, display and control module (A40/3) with code (527a) COMAND APS (with navigation). This may be useful after the vehicle has been transported (e.g. ferry or train) if there was no GPS reception at the start of the journey.