Traffic Sign Assist

A camera on the inside of the windscreen recognises speed limits indicated, for example, on roadside signs, overhead gantries or at roadworks. The data gathered is compared with information from the navigation system and displayed in the instrument cluster as well as on the navigation system's map view.

Overtaking restrictions and the signs indicating the end of such restrictions are also registered and shown. So even if you occasionally miss a road sign, as can happen particularly on long journeys with frequently changing signs, you will always have current information.

The new wrong-way warning function of Traffic Sign Assist can also help prevent people from unintentionally driving in the wrong direction on a road - so-called "phantom drivers". The system, which is already available in many markets, also recognises the no-entry signs at entry and exit slip roads to motorways and dual carriageways and compares these with the information from the navigation system relating to that particular section of the route. If you have driven past one of these signs, the system will warn you of the potential danger via an alert in red in the instrument cluster and an acoustic warning signal, thus giving you the chance to react immediately and reach your destination safely.

Maintains a clear overview
in a sea of traffic signs.



More detailed information


Changes may have been made since these images and films were produced.

The camera for Traffic Sign Assist permanently monitors the area in front of your vehicle. The image processing system it uses is able to identify the typical round shape of the relevant traffic signs, including signs providing additional information, from among all those around them.


The data gathered is compared in real time with information from the digital road maps stored in the COMAND Online System, so that the applicable speed limit can then be displayed both in the instrument cluster and on the COMAND Online display screen.


If the camera is unable to detect any road signs indicating a speed limit, or the end of a speed limit, the system will display the legally applicable speed limits derived from the navigation data. In Germany, for example, these include a maximum speed of 100 km/h on country roads and 50 km/h in built-up areas.


Traffic Sign Assist is available in many markets.

It enhances your safety and can help you avoid speeding fines, by making sure you keep within the speed limit at any given point and alerting you to no-overtaking restrictions. Furthermore, should you ever inadvertently enter the slip road to a motorway or similar major road against the direction of travel, Traffic Sign Assist - assuming the presence of relevant signs - will alert you to the fact with a clear warning sign in the instrument cluster and an acoustic signal.



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