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Internet Connection Function - GF82.60-P-2040RF

Model 205 

Model 253 (except 253.99) 

up to model year 2020 

Model 253.99 

Shown on model 205 up to model year 2019, model 253 (except 253.99) 

G12941352Courtesy of MERCEDES-BENZ USA

Shown on model 205 as of model year 2019, model 253.99 

G12941353Courtesy of MERCEDES-BENZ USA

Function requirements for Internet connection, general 

Internet connection, general 

The head unit controls the Internet connection. Depending on the equipment installed, the Internet connection is established via the HERMES control unit (with code 360 (HERMES UMTS), or code 362 (HERMES LTE)), or via the mobile phone system. The following conditions apply here:

The following controls can be used for operation of the function:

IMPORTANT Model 205

as of model year 2019

with code 355 (Pre-installation for retrofitting navigation system)

with code 506 (Audio 20 NTG 5.5 radio)

Model 205

up to model year 2019

with code 355 (Pre-installation for retrofitting navigation system)

with code 522 (Audio 20 radio)

Model 205

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 355 (Pre-installation for retrofitting navigation system)

with code 522 (Audio 20 radio)

Model 253 (except 253.99)

up to model year 2020

with code 531 (COMAND APS)

Model 253.99

with code 531 (COMAND APS)

To ensure successful certificate exchange, the head unit synchronizes the date and time. For this, the head uses the received global navigation system (GPS) signals.

IMPORTANT Model 205

as of model year 2019

with code 506 (Audio 20 NTG 5.5 radio)

except code 355 (Pre-installation for retrofitting navigation system)

Model 205

up to model year 2019

with code 520 (Audio 20 USB)

Model 205

up to model year 2019

with code 522 (Audio 20 radio)

except code 355 (Pre-installation for retrofitting navigation system)

Model 253 (except 253.99)

up to model year 2020

with code 520 (Audio 20 USB)

Model 253 (except 253.99)

up to model year 2020

with code 522 (Audio 20 radio)

except code 355 (Pre-installation for retrofitting navigation system)

To ensure successful certificate exchange, the head unit synchronizes the date and time with the manual instrument cluster settings.

IMPORTANT Operation of all functions is described in the following using the Audio/COMAND control panel as an example.

The Internet connection function is divided into the following subfunctions:

Additional function requirements for Internet access (dial-in) via the HERMES control unit 

Internet access (dial-in) via the HERMES control unit 

The function is activated by calling up the "System" menu on the Audio/COMAND display. It is also possible to directly access the browser via the "Back" button. The head unit generates the picture data to appear on the Audio/COMAND display and transmits it to the Audio/COMAND display via the LVDS line (model 205 up to model year 2019, model 253 (except 253.99)), or the HSVL line (model 205 as of model year 2019, model 253.99).

The Mercedes-Benz Internet and Application Gateway is always used as the server for protected data traffic in order to connect to the Internet.

This means that when surfing the net and using services, the user is only identifiable as a user of the Mercedes-Benz Internet and Application Gateway and cannot be located in the network. Data such as e.g. updates of map data, Internet radio or data via the in-car hotspot is not routed via the Mercedes-Benz Internet and Application Gateway.

The head unit transmits the data as follows to the Mercedes-Benz Internet and Application Gateway:

With code 522 (Audio 20 radio), or code 531 (COMAND APS) (model 205 up to model year 2019, model 253 (except 253.99)) 

WLAN antenna (with code 531 (COMAND APS)), or Bluetooth® antenna (with code 522 (Audio 20 radio)) →

Emergency call system control unit (with code 348 (Emergency call/assistance system)), or HERMES control unit (with code 360 (HERMES UMTS), or with code 362 (HERMES LTE)) →

Telephone antenna splitter and the emergency call system antenna (with code 360 (HERMES UMTS), or with code 362 (HERMES LTE)) →

Left telephone antenna or right telephone antenna →

Mercedes-Benz Internet and Application Gateway

IMPORTANT On vehicles with code 348 (Emergency call/assistance system), the emergency call system control unit automatically sends and receives the Internet signals over the emergency call system antenna when the left telephone antenna or right telephone antenna malfunctions or where reception is poor.

With code 506 (Audio 20 NTG 5.5 radio), or code 531 (COMAND APS) (model 205 as of model year 2019, model 253.99) 

WLAN antenna (with code 531 (COMAND APS)), or Bluetooth® antenna (with code 506 (Audio 20 NTG 5.5 radio)) →

HERMES control unit →

Emergency call system antenna →

Mercedes-Benz Internet and Application Gateway

According to the requests from the head unit, the Mercedes-Benz

Internet and Application Gateway exchanges data with the World Wide Web and the service providers via the Internet and transmits the received data in the opposite direction to the head unit.

IMPORTANT Activating a manual or automatic emergency call, breakdown assistance or an MB info call can interrupt the Internet connection.

Additional function requirements: Internet access (dial-in) via the mobile phone system 

Internet access (dial-in) via the mobile phone system 

Depending on the equipment, one of the following components is used as a modem:

The function is activated by calling up the "System" menu on the Audio/COMAND display. It is also possible to directly access the browser via the "Back" button. The mobile telephone network provider must first be selected at the head unit in vehicles with code 379 (Telephone module with Bluetooth® (SAP)), and mobile phones supporting the Dial-up Networking (DUN) profile. When using mobile phones that support the PAN profile, the dial-up data of the mobile telephone network provider entered into the mobile phone are used.

The mobile telephone network provider can either be selected from the country-specific lists or, if the mobile telephone network provider cannot be found in the list, added using "New Provider". Further access information is required (e.g. on the tariff) that can be obtained from the mobile telephone network provider. As soon as the data is available, the connection to the Internet is set up.

If the telephone module with Bluetooth® (SAP profile) (with code 379 (Telephone module with Bluetooth® (SAP profile))) is operated without its own SIM card, the telephone module with Bluetooth® (SAP profile) accesses the SIM card of the mobile phone using the SIM Access Profile over Bluetooth®.

IMPORTANT Fees: Internet access and services are free from Mercedes-Benz. However, fees must be paid to the mobile telephone network provider in accordance with the respective mobile phone contract. Display options and the option of separating the connection via the "System" menu make cost management easier in time as well as data volume contracts.

Basic telephony 

In vehicles without special equipment, the Internet connection is established via the basic telephony. The head unit sends the encrypted data via the Bluetooth® antenna to the mobile phone.

Model 205 up to model year 2019, model 253 with code 386 (Convenience Telephony) 

The mobile phone transmits the encrypted data as follows to the mobile telephone network:

Bluetooth® antenna →

Mobile phone →

Mobile phone cradle (accessories, in model 205.0/2 up to 30.11.2015, in model 253.9 up to 31.05.2016), or universal smartphone cradle (in model 205.0/2 as of 01.12.2015, in model 205.3/4, in model 253 as of 01.06.2016) →

Mobile phone contact plate →

Cellular telephone system antenna amplifier/compensator →

Telephone and stationary heater antenna changeover switch (with code B24 (Remote control for stationary heater)) →

Telephone antenna splitter →

Right telephone antenna or left telephone antenna

Model 205 up to model year 2019, model 253 with code 379 (Telephone module with Bluetooth® (SAP profile) 

The data can be transmitted in two different ways from the head unit to the telephone module with Bluetooth® (SAP profile). If the telephone module with Bluetooth® (SAP profile) is connected to the multimedia connection unit, the highest data transfer rate can be used. Otherwise, the mobile phone and head unit communicate with each other via Bluetooth®. In this case, the data rate is much lower.

The telephone module with Bluetooth® (SAP profile) sends the data via the following route into the mobile telephone network:

Mobile phone contact plate →

Cellular telephone system antenna amplifier/compensator →

Telephone and stationary heater antenna changeover switch (with code B24 (Remote control for stationary heater)) →

Telephone antenna splitter →

Left telephone antenna or right telephone antenna

Model 205 as of model year 2019 with code 899 (Multifunction telephony) 

The head unit sends the encrypted data via the Bluetooth® antenna to the mobile phone.

The mobile phone transmits the data as follows to the mobile telephone network:

Mobile phone cradle control unit →

Cellular telephone system antenna amplifier/compensator →

Telephone antenna splitter →

Left telephone antenna or right telephone antenna

IMPORTANT Multiple use of the mobile phone: Basically, several functions can be processed simultaneously by mobile phones suitable for Internet access, it is therefore possible, e.g. to make phone calls while connected to the Internet. However, this depends on the quality of the respective network. If the network connection is too weak, the Internet connection is merely maintained while the telephone call is being made.

Internet usage 

The Internet can be used in the vehicle in the following ways:

The services of the Mercedes-Benz Internet and Application Gateway are supplementary to the navigation system and can be used while driving. Free surfing is only possible if the vehicle is stationary. The instrument cluster transmits the vehicle speed to the head unit via the user interface CAN.

To output audio signals, the head unit activates the speaker system directly or transmits the appropriate signals via MOST to the sound system amplifier control unit (with code 810 (Sound system)), or to the Midline sound system amplifier control unit (with code 853 ("Midline" sound system)). Picture content (no flash) is shown on the Audio/COMAND display.

Use of services of the Mercedes-Benz Internet and Application Gateway (with code 360 (HERMES UMTS), or code 362 (HERMES LTE)) 

The function is activated by calling up the menu with the online services of the Mercedes-Benz Internet and Application Gateway on the Audio/COMAND display.

The individual services and the options for the services can now be actuated in the same way using the Audio/COMAND control panel. The method of operation and the screen displays have been adapted to the general operation of the head unit as have the design of the displays on the Audio/COMAND display so that operation is essentially intuitive. The Audio/COMAND control panel sends the control signals via telematics CAN to the head unit. The head unit generates the picture data to appear on the Audio/COMAND display and transmits it to the Audio/COMAND display via the LVDS line (model 205 up to model year 2019, model 253 (except 253.99)), or the HSVL line (model 205 as of model year 2019, model 253.99).

In vehicles except for code 494 (USA version), and except for code 498 (Japan version), Vodafone GmbH settles the costs according to the amount of data consumed. If usage varies from month to month, cost settlement via a data contract is required. If the monthly data volume is the same, e.g. downloading of map data, a simple contract is sufficient.

The following services can be used for example via the Mercedes-Benz Internet and Application Gateway with code 357 (Map navigation), or code 531 (COMAND APS):

Weather 

Weather information is displayed either as a weather data table or as a weather map.

In the basic setting the current weather data for the current location of the vehicle and forecasts for the next few hours are displayed. However, different time periods and locations can be selected, such as information about the weather along the route or at the destination. In addition, city names or ZIP codes can be entered with the character bar on the audio/COMAND display. The most up-to-date measurements and forecasts are always displayed.

The topicality of the data depends on the relationship between the time of the query and the time of the last measurement.

IMPORTANT Weather data is sent from the weather station nearest to the entered location. It can take a while to transfer and display the respective data, particularly if maps are being displayed or with a weak network connection.

Search for points of interest 

Search terms can be selected from lists or entered on the character bar on the audio/COMAND display. Points of interest can be searched for a search term at the current location, at the navigation destination or at an arbitrary location (free entry).

IMPORTANT The area that is being searched is defined under "Options".

The search results appear in the form of a list. If the list entry contains a telephone number, a telephone connection can be set up.

Search results can be stored in the address book (with code 531 (COMAND APS)), or under "Personal POIs" on the Secure Digital (SD) card in the SD card slot on the multimedia connection unit (with code 531 (COMAND APS), or code 355 (Pre-installation for navigation retrofit)).

A selected search result can be transferred to the navigation system, and in this case the head unit switches to the navigation menu.

Additional function requirements for loading points of interest or routes (model 205 up to model year 2019, model 253 (except 253.99) with code 348 (emergency call/assistance system), and with code 360 (HERMES UMTS), or with code 362 (HERMES LTE), model 205 as of model year 2019, model 253.99 with code 362 (HERMES LTE)) 

IMPORTANT Special destinations or routes that have been sent to the vehicle over the Internet (e.g. via Google Maps) are also sent to the vehicle by way of the Service Center.

Load points of interest or routes (model 205 up to model year 2019, model 253 (except 253.99) with code 348 (emergency call/assistance system), and with code 360 (HERMES UMTS), or with code 362 (HERMES LTE), model 205 as of model year 2019, model 253.99 with code 362 (HERMES LTE)) 

The Service Center transfers points of interest or routes via the mobile telephone network via the following route:

Model 205 up to model year 2019, model 253 (except 253.99) 

Left telephone antenna or right telephone antenna and additional emergency call system antenna (with code 360 (HERMES UMTS), or with code 362 (HERMES LTE)) →

Telephone antenna splitter →

Emergency call system control unit (with code 348 (Emergency call/assistance system)), or HERMES control unit (with code 360 (HERMES UMTS), or with code 362 (HERMES LTE))

Model 205 as of model year 2019, model 253.99 

Emergency call system antenna →

HERMES control unit

If circuit 15 is OFF, the HERMES control unit stores the data in an integrated buffer.

The electronic ignition lock control unit transmits the circuit status to the HERMES control unit via the diagnostics CAN.

IMPORTANT Model 205

with code 357 (Map navigation)

with code 494 (US version)

Model 205

with code 494 (US version)

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 357 (Map navigation)

with code 494 (US version)

Model 253 (except 253.99)

up to model year 2020

with code 494 (US version)

with code 531 (COMAND APS)

Model 253.99

with code 357 (Map navigation)

with code 494 (US version)

Model 253.99

with code 494 (US version)

with code 531 (COMAND APS)

A maximum of 100 POIs and 30 routes each with up to 255 route points can be stored. If the capacity of the buffer is exceeded, the oldest POIs or routes are overwritten.

IMPORTANT Model 205

with code 357 (Map navigation)

except code 494 (US version)

Model 205

with code 531 (COMAND APS)

except code 494 (US version)

Model 253 (except 253.99)

up to model year 2020

with code 357 (Map navigation)

except code 494 (US version)

Model 253 (except 253.99)

up to model year 2020

with code 531 (COMAND APS)

except code 494 (US version)

Model 253.99

with code 357 (Map navigation)

except code 494 (US version)

Model 253.99

with code 531 (COMAND APS)

except code 494 (US version)

The capacity of the buffer is restricted to 20 routes and 50 points of interest. If more POIs and routes are sent than can be stored in the clipboard, the oldest POIs and routes are overwritten.

IMPORTANT Model 205

with code 357 (Map navigation)

Model 205

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 357 (Map navigation)

Model 253 (except 253.99)

up to model year 2020

with code 531 (COMAND APS)

Model 253.99

with code 357 (Map navigation)

Model 253.99

with code 531 (COMAND APS)

Because of the limited capacity of the buffer, transmitted POIs and routes are only available for loading for a limited time period (approx. 7 days), and only a limited number of POIs and routes can be made available for loading within the same time period.

When circuit 15 is ON, the emergency call system control unit (model 205 up to model year 2019, model 253 (except 253.99) with code 348 (Emergency call/assistance system)), HERMES control unit (model 205 up to model year 2019, model 253 (except 253.99) with code 360 (HERMES UMTS), or with code 362 (HERMES LTE), or model 205 as of model year 2019, model 253.99 with code 362 (HERMES LTE)) transmits the POIs/routes to the head unit via the diagnostics CAN, electronic ignition lock control unit and user interface CAN.

The reception of information is displayed by the head unit by means of a pop-up window on the Audio/COMAND display.

IMPORTANT Navigation data can be sent by the Service Center as part of an emergency call, breakdown assistance or an MB Info call.

Additional function requirements for loading points of interest or routes (with code 357 (Map navigation), or with code 531 (COMAND APS), or with code 522 (Audio 20 radio), and code 355 (Pre-installation for navigation retrofitting), or with code 506 (Audio 20 NTG 5.5 radio), and code 355 (Pre-installation for navigation retrofitting)) 

Load points of interest or routes (with code 357 (Map navigation), or with code 531 (COMAND APS), or with code 522 (Audio 20 radio), and code 355 (Pre-installation for navigation retrofitting), or with code 506 (Audio 20 NTG 5.5 radio), and code 355 (Pre-installation for navigation retrofitting)) 

POIs that have been found on the Internet via Google Maps or routes that have been planned using Google Maps can be transmitted to the vehicle using the "Transmit to car" function on the Google Maps web pages.

Depending on the equipment installed, the points of interest or routes are received via the mobile telephone network via the following routes:

With CODE 379 (Telephone module with Bluetooth® (SAP profile)): 

Left telephone antenna and right telephone antenna →

Telephone antenna splitter →

Cellular telephone system antenna amplifier/compensator (up to 31.05.2016) →

Mobile phone contact plate →

Telephone module with Bluetooth® (SAP profile) →

Bluetooth® antenna or multimedia connection unit →

Head unit

With code 899 (Multifunction telephony): 

Left telephone antenna and right telephone antenna →

Telephone antenna splitter →

Cellular telephone system antenna amplifier/compensator →

Mobile phone cradle control unit →

Mobile phone →

Bluetooth® antenna →

Head unit

Basic telephony 

The head unit receives the points of interest or routes over the Bluetooth® antenna from the mobile phone.

IMPORTANT Model 205

with code 357 (Map navigation)

Model 205

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 357 (Map navigation)

Model 253 (except 253.99)

up to model year 2020

with code 531 (COMAND APS)

Model 253.99

with code 357 (Map navigation)

Model 253.99

with code 531 (COMAND APS)

The capacity of the buffer is restricted to 20 routes and 50 points of interest. If more POIs and routes are sent than can be stored in the clipboard, the oldest POIs and routes are overwritten.

IMPORTANT Model 205

with code 357 (Map navigation)

Model 205

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 357 (Map navigation)

Model 253 (except 253.99)

up to model year 2020

with code 531 (COMAND APS)

Model 253.99

with code 357 (Map navigation)

Model 253.99

with code 531 (COMAND APS)

Due to the limited capacity of the buffer, transmitted POIs/routes are available for downloading only for a limited period of time (approx. 7 days), and only a limited number of POIs/routes can be made available for download within the same time period.

IMPORTANT Model 205

with code 357 (Map navigation)

Model 205

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 357 (Map navigation)

Model 253 (except 253.99)

up to model year 2020

with code 531 (COMAND APS)

Model 253.99

with code 357 (Map navigation)

Model 253.99

with code 531 (COMAND APS)

If the POI or route is only needed immediately and not permanently, the navigation can be started directly via the "Navigate" menu entry without the POI or route being stored permanently.

IMPORTANT Model 205

with code 498 (Japanese version)

with code 531 (COMAND APS)

Model 253 (except 253.99)

up to model year 2020

with code 498 (Japanese version)

with code 531 (COMAND APS)

Model 253.99

with code 498 (Japanese version)

with code 531 (COMAND APS)

Points of interests can be loaded, but only a few routes.

Additional function requirements for free surfing 

Unrestricted surfing 

In order to connect to the Internet, either a URL must be entered in the browser or a page that is stored under "Favorites" must be selected. After opening the browser, the website last visited is loaded.

To navigate on the page, you can either move the cursor as though you were using a mouse or, on the current page, jump from one selectable object (e.g. link) to the next (the object is highlighted here).

When jumping to a text entry field, the character toolbar on the audio/COMAND display can be used to enter text.

Surfing with the mobile browser is subject to the following technical restrictions:

IMPORTANT The Internet browser can play Flash, but cannot display any Flash videos.

Additional function requirements for In-Car Hotspot (with code 531 (COMAND APS)) 

In-Car Hotspot (with code 531 (COMAND APS)) 

The In-Car Hotspot function allows users in the vehicle to use the Internet wirelessly on mobile terminals; this is implemented via the head unit. As a Wireless Access Point (WAP), the head unit exchanges WLAN data with mobile terminals via the antenna and routes the signals to the Internet.

To connect the mobile terminal, the user must search for networks (Wireless Local Area Network) on the mobile terminal and select the head unit network.

IMPORTANT Several devices can be connected simultaneously.

  Electrical function schematic for mobile phone Model 205 up to model year 2019 except code 348 (Emergency call/assistant system) except code 362 (HERMES LTE), Model 253 (except 253.99) up to model year 2020 except code 348 (Emergency call/assistant system) except code 362 (HERMES LTE) PE82.70-P-2051-97FBA
    Model 205 as of model year 2019 except code 362 (HERMES LTE), Model 253.99 except code 362 (HERMES LTE) PE82.70-P-2051-97FBB
  Electrical function schematic for telematics services function Model 205, Model 253 up to model year 2017 with code 348 (Emergency call/assistant system) PE82.95-P-2074-97FBA
    Model 205 as of model year 2017 up to model year 2019 with code 362 (HERMES LTE), Model 253 (except 253.99) as of model year 2017 up to model year 2020 with code 362 (HERMES LTE) PE82.95-P-2074-97FBD
    Model 205 as of model year 2019 with code 362 (HERMES LTE), Model 253.99 with code 362 (HERMES LTE) PE82.95-P-2074-97FBE
  Overview of system components, telematics   GF82.85-P-9999RF
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