42 NavigationNavigationGeneral information ..................... 42Usage .......................................... 43Destination input .......................... 49Guidance ..................................... 55General informationThe navigation system will reliablyguide you to your destination.The current traffic situation is takeninto account in the route calculation.For this purpose, the Infotainmentsystem receives trafficannouncements in the currentreception area via RDS-TMC.The navigation system cannot,however, take into account trafficincidents, traffic regulations changedat short notice and hazards orproblems that arise suddenly (e.g.road works).CautionThe usage of the navigationsystem does not release the driverfrom the responsibility for acorrect, vigilant attitude in roadtraffic. The relevant trafficregulations must always befollowed. If a navigation instructioncontradicts traffic regulations, thetraffic regulations always apply.Functioning of the navigationsystemThe position and movement of thevehicle are detected by the navigationsystem using sensors. The travelleddistance is determined by thevehicle's speedometer signal, turningmovements on bends by a gyrosensor. The position is determined bythe GPS (Global Positioning System)satellites.By comparing the sensor signals withthe digital maps, it is possible todetermine the position with anaccuracy of approx. 10 metres.The system will also work with poorGPS reception. However, theaccuracy of the determination of theposition will be reduced.After the entry of the destinationaddress or point of interest (nearestpetrol station, hotel, etc.), the route iscalculated from the current location tothe destination selected.Route guidance is provided by voiceoutput and an arrow, as well as withthe aid of a multi-colour map display.