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

Model 213 up to model year 2021 with code 531 (COMMAND APS) 

G13774878Courtesy of MERCEDES-BENZ USA

Shown on model 213 as of 01.06.2018 

G13774879Courtesy of MERCEDES-BENZ USA

Shown on model 213 up to 31.05.2018 

IMPORTANT Model 213

up to model year 2021

with code 446 (Touchpad only)

with code 531 (COMMAND APS)

Model 213

up to model year 2021

with code 448 (Touchpad)

with code 531 (COMMAND APS)

Information on touchpad 

The touchpad is installed in two variants.

Variant (with code 448 (Touchpad)): The touchpad is installed together with the Audio/COMMAND control panel. The touchpad is connected only to the telematics CAN.

Variant 2 (with code 446 (Touchpad only)): The touchpad is installed instead of the Audio/COMMAND control panel. In this case, the upper control panel control unit, the left lower control panel and right lower control panel are connected to the touchpad via UBF-LIN. The touchpad is also connected to the telematics CAN.

Function requirements, general 

Navigation mode 

The navigation module is integrated into the head unit. The navigation system includes the following functionalities:

The location of the vehicle and the direction and distance to the destination are determined continuously with the aid of the navigation system. After entering or selecting a destination location, route calculation starts.

Depending on the national version, a range of options can be selected for route calculation, e.g.:

If observance of the options is not possible, they are ignored for the stretches in question. Visual and acoustic signals are also output. The set options can be changed at any time. When the route is being calculated, the message "Calculating route" is output. Following calculation, the route is displayed by arrow pictograms on the Audio/COMMAND display. If the vehicle is no longer traveling along the precalculated route, the route is recalculated. If the recalculated values are plausible for the navigation system, then the modified route is displayed.

IMPORTANT Dynamic route guidance (with "Dynamic route", "Dynamic route with confirmation" or "Eco route"): An alternative route is offered under dynamic route guidance, in the event of a sufficiently long traffic jam or road closure on the calculated route.

In the case of a valid subscription, the navigation system also has apps with information (e.g. weather, gas station prices) or lists, map data of points of interest (e.g. restaurant, gas station, parking area shopping), which can be selected as the destination or for a stopover.

IMPORTANT Destinations can be sent from the Internet via the "MercedesBenz Application Gateway" to the vehicle and imported into the navigation system.

IMPORTANT Model 213

up to model year 2021

with code 498 (Japanese version)

with code 531 (COMMAND APS)

Routes can be sent from the Internet via the "Mercedes-Benz Application Gateway" to the vehicle and imported into the navigation system.

IMPORTANT Model 213

up to model year 2021

with code 494 (US version)

with code 531 (COMMAND APS)

Destination entries or points of interest can be made available to the navigation module of the head unit by the Service Center.

The navigation system can be operated with the following components:

IMPORTANT For the voice control system of navigation, in particular for destination entry, additional name lists are available in the navigation system. Name lists exist for the following information, for example: place names for selected towns/cities on the data medium, street names for all towns, town centers and special destinations.

The navigation mode function includes the following subfunctions:

IMPORTANT The navigation system uses a special interface to provide data that is used by other systems in the vehicle. The head unit transmits the data via the user interface CAN.

GPS position finding 

The GPS is a satellite-based position finding system, which is available on a global basis. GPS position finding is irretrievable after vehicle transport (e.g. by train or ferry or after towing). Recalculating the GPS position (after satellite reception has been interrupted) can take several minutes (up to 5 minutes during initial commissioning). The accuracy of the position finding and the actual calculation are essentially based on the measurement of the run times of the signals sent synchronously by the various satellites. A vital precondition is the synchronicity of the clocks in the satellites and in the receiver. To ensure synchronicity, the receiver is equipped with an automatic time correction that is possible thanks to the satellite signals. The head unit calculates the current position of the vehicle from the GPS signals. The direction of travel is determined with the aid of the sequence of locations calculated with the GPS system.

On vehicles with code 362 (HERMES LTE) as of 01.06.2019, the HERMES control unit receives the GPS signals from the GPS antenna and forwards them to the head unit.

On vehicles with code 362 (HERMES LTE) up to 31.05.2019 as well as on vehicles except code 362 (HERMES LTE), the head unit receives the GPS signals from the GPS antenna.

IMPORTANT As GPS operates in the gigahertz (GHz) range and the signals are weak, the following events may lead to reception interference:

Atmospheric interference disturbances (e.g.bad weather, water vapor, mist), multiple reception through signal reflexions (e.g.on house walls) or signal shadowing (e.g.in built-up areas, in tunnels, due to tall buildings or trees).

Basic position finding 

If no GPS signals are received during route guidance, navigation is still possible with basic position finding. A defect, e.g. in the GPS antenna, is therefore not immediately perceptible. Basic position finding runs parallel to GPS position finding.

For basic position finding the head unit requires the following information:

IMPORTANT Location faults during position finding, rolling backward with circuit 15 OFF or vehicle transportation falsify basic position finding. The deviation is automatically corrected by the navigation processor integrated in the head unit when GPS data is received.

IMPORTANT Calibration

The calibration following a tire replacement is performed automatically. Because of the tire abrasion, a constant recalibration of the tire circumference is required. Recalibration is carried out automatically and uses the difference between the calculated and actually traveled distance between two turning points that has been determined using map-based position finding.

Route calculation 

Route calculation is accomplished using the options set to the best possible extent. If observance of the options is not possible, they are ignored for the stretches in question. Visual and acoustic signals are also output. The set options can be changed at any time. When the route is being calculated, the message "Calculating route" is output. Following calculation, the route is displayed by arrow pictograms on the Audio/COMMAND display. If the vehicle is no longer traveling along the precalculated route, the route is recalculated. If the recalculated values are plausible for the navigation system, then the modified route is displayed.

Destination-oriented navigation 

The integrated navigation processor continuously compares the route calculation data with the position finding data and uses the data to deduce measures for further route guidance. The route guidance is carried out by outputting visual and acoustic information and is divided up into the following areas:

Map route guidance 

The map route guidance is shown on the audio/COMMAND display or on vehicles with code 464 (Full display digital instrument cluster) in the instrument cluster.

The head unit transmits a switch-on request to the Audio/COMMAND display via the telematics CAN. At the same time, the head unit generates the signals for visually depicting route guidance (map navigation), and transmits these to the Audio/COMMAND display via the HSVL line. On vehicles with code 464 (Full display digital instrument cluster), the head unit transmits the corresponding picture signals for a high-resolution visualization to the instrument cluster via the HSVL line.

Route guidance through driving lane recommendations 

For certain turnoff situations on multiple-lane exit points (e.g. freeway intersections), driving lane recommendations are shown in the bottom line. When a turnoff recommendation is given, the distance to the turnoff point is also displayed using a bar graph. The lanes have arrows assigned to them, which indicate on which lane the destination can be reached or the best way to reach it.

With day design, the following colors are used on the Audio/COMMAND display:

White: the best or recommended lane

Light gray: the lane is correct, but a lane change will soon be required. Dark gray: this lane will not take you to the destination.

IMPORTANT The instrument cluster only displays white arrows.

Route guidance by means of voice output 

Route guidance by means of voice output is an assistance function that assists the driver without distracting him from the traffic. Voice is output with the selected system language. The route guidance of the navigation system is supported by voice outputs with the following information:

Extended navigation functions 

The navigation system is extended with regard to convenience, customization and tourist information by the following functions:

The extended navigation mode functions are converted internally in the head unit and - where applicable - shown over the HSVL line on the Audio/COMMAND display.

  Electrical function diagram for navigation mode (COMMAND) function   PE82.85-P-2063-97DBA
  Overview of system components, telematics   GF82.85-P-9999FG 
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