dlcain

This popped up on my display the other day. How does my C250 know that I needed a break?

superangrypenguin

When you first start driving the system measures how quick your steering inputs are. As you get tired your reaction changes for the worse nd the system alerts you. I believe it also takes into account the total amount of time spent driving in one shot and the time of day but I may be wrong here.

capt_paul

alecmascot

NOBODY reads the manual for anything these days.........

dlcain

I bought this car used and it didn't come with a manual. I joined the forum to learn more about my car was all.

Alfadude

You can download a manual from the Mercedes USA website and it will explain about that function.

CJG

How can he read the owners manual when he's taking pictures while driving 80 mph?

dlcain

In 95 deg Florida weather no less LMAO

superangrypenguin

The one and only time it has ever come on Interestingly on mine, it says "Drowsiness Detected" vs the OPs

chilnviln

would've been even better if it was a kit kat AND a cup of coffee.

95viper

ezshift5

EZ

Moto_Guzzi

I once took a break, went into a shopping centre, got out to find car quitted, sudden death stearing lock fail. I imagine if that should happen to you, you get a new car on the spot.

dol4er

Have you been driving for 8-10 hours in a single day? I think that's the only way to activate this warning message.

chimchongdlight

this has happens to me numerous times, even on a 2 hour drive. I think it just feels how you drive, so the slightest movement or change, this message will pop up. Always happens when I'm texting or driving with my knee when I'm eating, theres a lot of different ways it will trigger

xEryx

Never seen it before even though I drive to work at 6AM with one eye closed and the other at 50% 1/2 of the week lol.

ChazThePhoenix

that would really be a person who can multi-task...

I can only manage shopping for a second car while doing 80....at 70 I can talk on the phone also

ChazThePhoenix

ah I see I am not alone... I should really get a manual transmission, so I stop doing these things...at least part of the time

ChazThePhoenix

for those you who have owners manual deficiency

So how does Mercedes-Benz Attention Assist work? Well, it all starts within a few minutes of entering the vehicle. Soon after drivers begin on their journey, the system creates an individual profile of the driver, recognizing behavior while the driver is fully alert. That profile is used as the basis for comparison during the rest of the drive.

Mercedes-Benz Attention Assist uses a highly sensitive sensor that monitors and records steering movement and speed. Research done by Mercedes-Benz showed that when drivers are fatigued, they will change their steering behaviors and make more errors, which are normally corrected quickly. When Attention Assist recognizes the vehicle drifting and being quickly readjusted back onto the center of the road or notices a change in driving behavior, it will go on to check several other parameters to see if the change is due to fatigue or other factors.

Attention Assist will examine considerations such as time behind the wheel, driver activity, weather, and road surface influences, and a variety of other factors that may be causing the irregular driving behavior. If the system determines drowsiness is the cause, it will send an audible and visible alert letting the driver know it’s time to take a break.

While Mercedes-Benz offers a number of technologies to help drivers be more aware of their surroundings, Attention Assist is the industry’s only technology that helps drivers monitor their own behavior.