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First time Mercedes owner and first time posting, so I hope I’m in the right spot. I like my new car, but I’m not a fan of having the cruise control speed automatically update, especially since the updated speed is not always accurate.
What happens is dependent upon the settings selected. When speed limits are automatically adopted, they can be overridden with the throttle pedal.
I do not allow automatic adoption of speed limits due to the inability to properly detect when a school zone speed limit is active. There is nothing like the thrill of an unexpected max braking slow down from 50 mph to 15 mph because the car can't tell when a school zone speed limit is active.
it sometimes misses a sign.
it's braking too abrupt when a new sign is detected.
it sometimes reads signs from perpendicular/parallel roads (so you drive 90km and it all of a sudden it sees a sign on a small side road which says 10km....)
it sometimes reads signs on the back of trucks.
What happens is dependent upon the settings selected. When speed limits are automatically adopted, they can be overridden with the throttle pedal.
I do not allow automatic adoption of speed limits due to the inability to properly detect when a school zone speed limit is active. There is nothing like the thrill of an unexpected max braking slow down from 50 mph to 15 mph because the car can't tell when a school zone speed limit is active.
In what situation would there be a 50mph limit that changes to 15mph when children are present? My car doesn't auto adjust to those signs, it only adjusts to the strict " 50mph speed limit" signs. Any other sign, which says 25mph when children are present, do not get triggered by the system.
Anyway, I keep it set to on, and just double tap the accelerator pedal to keep my current speed. But I also agree its too abrupt in the braking. Plus, there have been times when a speed limit sign is for another freeway road that runs parallel to the freeway I am on, and is divided. The car will mistakenly think the speed limit for that road is for me.
Our school zone speed limit signs look the same as any other speed limit sign. Typically there is a school zone sign mounted with an occulting yellow light or with effective hours. At the end of the school zone there is a white sign with black lettering that says end school zone.
Yes, it is in the navigation screen, menu, vehicle, driver assistance, and go from there. It should be pretty self explanatory.
You are awesome! I could have sworn I went through every option, but I clearly missed it. I also tried googling it, but I just got overview videos of speed pilot. I'm glad I finally signed up for this forum.
The only real benefit I see is if the speed limit goes down, and I don't notice it. It could save me a ticket. I still have to manually adjust the cruise speed for every speed limit change, because I'm a rebel and I regularly exceed the speed limit by four MPH.
I still would have left it on, if it wasn't for the times it gets goofed up. I was on a 65 MPH interstate once, and it somehow thought I entered a 20 MPH zone. I've also had issues in long construction zones. It will spontaneously think the speed limit went back to the normal value, even though I'm still in the construction zone. The school zone issue is what I encounter the most.
I like the option to display the current speed limit and alert when I'm exceeding it by a configurable threshold.
Had the chance to drive in Europe earlier this year using this feature and it works really well on the highways there. The speed limit changes quite often and this worked perfectly. Drove through Germany, Switzerland and into Italy and I finally understood this feature...as well as several others. Sometimes the European mindset helps to understand these cars a bit better
IMO The road signs are more uniform in the EU than in the US where every state has some variation of the Federal minimum signage standards.
In Florida we have lots of speed zones that do not have posted speed limits. One has to be aware of what they are such as XY mph unless posted otherwise where XY can be almost any number - 25 = residential, 30 = residential, etc. These can vary by incorporated areas.
09-12-2018, 12:01 AM
