How Does Mercedes-Benz ATTENTION ASSIST® Work?

November 15th, 2018 by

ATTENTION ASSIST display on Mercedes-Benz GLS dash

Your Mercedes-Benz dashboard is home to a wide variety of symbols and lights. At times, it can be difficult to know what each and every one stands for. So, if you’ve wondered, “What does the coffee cup mean on my Mercedes-Benz?” Mercedes-Benz of Honolulu has the answer: the coffee cup symbol means that Mercedes-Benz ATTENTION ASSIST® is turned on.


ATTENTION ASSIST® is an intelligent technology that increases Mercedes-Benz car safety for both the driver and passengers. Great for long car rides, this safety feature monitors driving maneuvers and alerts the driver when they show signs of fatigued driving behavior. For those wondering, “How does my Mercedes-Benz detect drowsiness with this feature?” watch the video below to learn in greater detail just how ATTENTION ASSIST® works.

How Mercedes-Benz ATTENTION ASSIST® Works

Video Transcription:

Improvements in comfort make even long journeys in a Mercedes[-Benz] a pleasure. During long journeys, however, it’s possible that a driver’s attention level will fall. Many serious accidents are caused by drivers getting drowsy behind the wheel. To help recognize the signs of driver drowsiness at a very early stage, Mercedes-Benz has developed ATTENTION ASSIST®. If the system detects these typical signs [such as incorrect steering or veering out of a detected lane], the driver will be urged to take a rest.

During the first few minutes of driving, ATTENTION ASSIST® draws up an individual profile of the driver’s driving style, which is then constantly compared with the latest feedback from the sensors. At the heart of the system is a highly sensitive sensor that records steering movements and steering speed. Studies by Mercedes-Benz have revealed that drivers who are tired change their steering behavior and make minor steering errors which they then usually correct immediately.

If the system detects this sort of changed behavior, it will go on to check further relevant parameters in order to verify the result. For example, how long has the driver been at the wheel? Is the driver using the instruments and thus showing signs of activity? Are there external influences at work, such as side wind or an uneven road surface? If the result is unequivocal, ATTENTION ASSIST® will issue the audible and visible prompt, “Time for a break.” In some models you can also display your detected attention level in the instrument cluster, see how long you’ve been driving, or even get directions from the navigation system to the nearest rest area. ATTENTION ASSIST® from Mercedes-Benz helps prevent accidents caused by driver fatigue.

Learn More About ATTENTION ASSIST® From Mercedes-Benz of Honolulu

Contact us to learn more about ATTENTION ASSIST®, which comes standard on a variety of Mercedes-Benz models like the CLA, GLA, and E-Class. Visit our dealership to browse our inventory of new vehicles equipped with this technology, and explore this safety technology for yourself! Our dealership is just a short drive from Kapolei and Aiea.

Posted in FAQ, Safety, Technology