GF82.85-P-2012SK Navigation Mode, Function

GF82.85-P-2012SK Navigation Mode, Function
- with CODE (525) MB Audio 50 APS radio
- with CODE (527) COMAND APS with single DVD drive (with navigation)

Component Identification:

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. With the COMAND operating, display and controller unit (A40/3) with code (527a) COMAND APS (with navigation), the external navigation module is designated as navigation processor (N41/1).

Navigation system
With the aid of the COMAND operating, display and controller unit (A40/3), the location of the vehicle and the direction and distance from the destination (after destination input) are determined by the navigation processor (N41/1). Then the required measures for reaching the destination are started (destination-oriented navigation).
The navigation system is already activated by opening the driver door (in the background) This makes it immediately ready for operation after initialization with the control unit. A DVD drive is integrated in the COMAND operating, display and controller unit (A40/3) for reading the digital map data.

After the "NAV" button is pressed, the message "Please insert navigation CD" appears in the navigation CD screen

If an incorrect or illegible CD, e.g., audio CD, is inserted, an error message appears (in this menu).

Destination entry
The destination is entered menu-assisted via the operating unit and is processed by the navigation processor (N41/1). The COMAND operating, display and controller unit (A40/3) offers in navigation mode the following alternatives for destination entry:
^ Via destination memory
^ Destination entry
^ Special destinations (e.g. hospital, car park, gas station)
^ last destination entry
^ Entry of intermediate destinations
^ Dynamic route calculation
^ Address entry
^ Destination via map
^ Travel guide
^ Destination memory with individual destinations

Predictive text input
When entering the destination the next possible letter is displayed and the relevant letter can then be accepted into the destination entry.

Dynamic supplementation
This function is realized with the manual entry of the destination. While entering a destination the letters which are still missing are completed from an existing list. The added characters are highlighted in black. Deletion is done by character.
The following submenus are displayed in the "Special destinations" menu:
^ location
^ surrounding at actual destination
^ surrounding at a specific location center
^ special destination surrounding

These submenus are subdivided still further. The search radius is approx. 20 km, however special categories, e.g. airport, have a larger search radius (approx. 80 km).

Position finding
The COMAND operating, display and controller unit (A40/3) calculates continuously the location of the vehicle with the aid of the following procedures:
^ GPS position finding
^ Basic position finding (dead reckoning)
^ Map-based position finding

The navigation processor (N41/1) calculates the most likely position by constantly comparing the location results of these three methods.

Route calculation
The route is calculated in the navigation processor (N41/1) after destination input or automatically after a deviation from the proposed route.
With the dynamic destination-oriented navigation system, the route calculation is influenced by incorporating traffic information via an external provider by means of radio (TMC). The calculated route is stored in the navigation processor (N41/1).

Destination-oriented navigation starts once the navigation processor (N41/1) has carried out the route calculation.
3 types of display can be selected for graphic destination-oriented navigation:
^ Map
^ Map and symbol presentation of the turn-off points
^ Symbol presentation (system of navigation symbols)

The map display is always controlled from the operating unit. The following display functions are supported:
^ Destination-oriented navigation map
^ positioning map
^ destination map
^ Route map
^ auto zoom
^ Intersection zoom
^ traffic jam map
^ parking place map

It is possible to change arbitrarily between the types of presentation. In all instances the destination-oriented navigation is backed up by voice outputs over the vehicle speakers.

If the multi-standard drive is not used for navigation, it is also possible to play Audio CDs or video DVD's