Navigation mode, function with code 525 or 527 - GF82.85-P-2012SK
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).
Navigation system
With the aid of the COMAND operating, display and control module (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 (navigation).
The navigation system is already activated by opening the driver's 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 control module (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 control module (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 input
- Entry of intermediate destinations
- Dynamic route calculation
- Address input
- Destination with map
- Travel guide
- Destination memory with individual destinations
Predictive text input
When entering destination data, the next possible letters are displayed and it is then possible to adopt the relevant letter in 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 supplemented characters have a black background. Deleting can be accomplished character by character.
The following submenus are displayed in the "Special destinations" menu:
- Location surroundings
- Surroundings of current destination
- Surroundings of any town center point
- Surroundings of special destinations
- 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 control module (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-supported 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 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).
Navigation starts once the navigation processor (N41/1) has carried out the route calculation.
3 types of display can be selected for graphic navigation:
- Map
- Map and symbol presentation of the turn-off points
- Symbol presentation (system of navigation symbols)
The map presentation is always controlled by the operating unit The system supports the following functions:
- Navigation map
- Position map
- Destination map
- Route map
- Auto zoom
- Intersection zoom
- Traffic jam map
- Car park map
It is possible to change arbitrarily between the types of presentation. The destination-finding system is also supported by voice output from the vehicle loudspeakers.
If the multi-standard drive is not used for navigation, it is also possible to play Audio CD's or video DVD's
| Continuous position finding, function | GF82.61-P-2002SK |
| Basic position finding, function | GF82.61-P-3006SK |
| Global positioning system (GPS) position finding, function | GF82.61-P-3007SK |
| Map-based position finding, function | GF82.61-P-3008SK |
| Route calculation, function | GF82.61-P-3011SK |
| Destination guidance, function | GF82.61-P-3012SK |
| Destination guidance in digitized map area, function | GF82.61-P-4000SK |
| Destination guidance in non-digitized map area, function | GF82.61-P-4001SK |
| Dynamic route guidance, function | GF82.61-P-4003SK |