S-Class - Interactive Owner's Manual [In depth | COMAND | Navigation system* (dynamic route guidance with RDS-TMC)]

Navigation system* (dynamic route guidance with RDS-TMC)

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Introduction to RDS-TMC

An RDS-TMC radio station transmits free-of-charge RDS-TMC traffic reports in addition to the radio programme. COMAND can receive the RDS-TMC traffic reports and take them into consideration for dynamic route guidance. Thus, for example, the navigation system can guide you around a traffic jam.

There may be differences between the reports received and the actual traffic situation.

Dynamic route guidance

To switch on: select the Dynamic route route type

(RDS-TMC and Dynamic route are not available in all countries.)

Proceed as described in the "Setting the route type" section more.

To switch off: select a different route type.


COMAND calculates a new route if you change the route type setting with route guidance active. If you change the route type setting when route guidance is inactive, COMAND uses the new setting for the next route guidance.

RDS-TMC displays on the map

COMAND can show certain traffic incidents on the map. These displays can be seen on map scales 50 m (0.05 miles) to 50 km (50 miles).

	To set the map scale: turn until the desired map scale is set.
	Turning clockwise enlarges the map, turning anti-clockwise reduces the map scale.

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Icon concerning an incident on the route, in this example, a traffic jam

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Section of route affected

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Current vehicle position and direction of travel

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Map scale selected

Example display of a traffic jam on the route


COMAND uses corresponding icons to highlight the entire section of the affected route, regardless of how long the incident actually is. Icons are located to the left or right of the route, when viewed in the direction of travel. They thereby show which side of the carriageway is affected by the incident.

More possible icon displays are shown below.

Traffic jam on the route (icon has red outline)

Traffic jam off the route (icon has grey outline)

Slow-moving traffic on the route (icon has red outline)

Slow-moving traffic off the route (icon has grey outline)

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Road closure on the route

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Traffic jam

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Slow-moving traffic


If you have switched off dynamic route guidance, COMAND will also show red icons , and for incidents to the side of the road.

Displaying RDS-TMC traffic reports

Displaying the report list

	Select Navi TMC.
	COMAND searches for RDS-TMC stations. If no traffic reports are available, you will see a display to this effect.
	To close the list: select OK.
	If stations are available, COMAND searches for traffic reports. You will see a display to this effect.
	To cancel the search: select Cancel.
	If there are no traffic reports, you will see a display to this effect.
	To close the list: select OK.
	If there are traffic reports, you will see a list. The content of the list varies depending on whether route guidance is active or not.

List when route guidance is not active

When route guidance is not active, the list shows all the roads, areas or regions for which reports are available.

Country designation (only appears if there are reports from different countries)

Road concerned

Area or region concerned


A report may also relate to an area or region rather than a road, e.g. impaired visibility due to fog.

	To read a message: select a road, an area or region.
	You will find an example of a report on more.
	To close the list: slide .

List when route guidance is active

When route guidance is active, the list only shows the roads, areas or regions on the route and for which reports are available.

To display all reports (including those not concerning the route)

Affected roads or areas/regions (only shown if there are reports concerning the route)

	To display all messages: select Display all messages.
	You will see all roads or areas or regions for which reports are available, including those that do not affect the route.
	To close the list: slide one or more times.

Possible contents of a message (example)

Shows the current selection (Messages on route or All messages)

Incident icon (e.g. traffic jam)

Country designation (only appears if there are reports from different countries)

Road the message refers to (an area or region may also be displayed)

Message 1 of 5 for the road affected

Text of message

The icons for possible incidents are listed below.

Icon for traffic jam

Icon for slow-moving traffic

Icon for warning message

Icon for road closure

To browse: turn resources/font_symbols/mbsymb4/mbsymb4_0079.png or slide .