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Step 1: Read your owner's manual, specifically the section on the driving assistance features.
Step 2: Follow the instructions on page 220 to turn off automatic adoption of speed limits.
I believe we have all experienced this issue. However, I put up with it. I find it quite handy when driving home late at night (or eraly morning) on roads where the limit it constantly increasing and decreasing. As @mikapen mentioned, plenty of revenue catchers hiding in the bushes.
Mine has also done the opposite. On roads with lower limits, it sometimes displays a limit of 80 MPH and takes off - THIS IS FUN!!!!. Can't wait to explain it in court some day - LOL.
There seems to be a known issue with outgassing in the windshield camera housing with the GLE, fogging up the cameras and as a result it fails to properly recognize the speed limit signs. It's been reported here by other members and MB knows about it.
There seems to be a known issue with outgassing in the windshield camera housing with the GLE, fogging up the cameras and as a result it fails to properly recognize the speed limit signs. It's been reported here by other members and MB knows about it.
I think the outgassing cameras were from a specific supplier, on a specific run of VINs.
In my case, the problem was ID'd when a replacement windshield (OE) wouldn't let the camera calibrate. They did the "alcohol clean" fix, not the "bake the camera" fix.
If the problem resurfaced (it hasn't - that was 2021), I'd describe the problem and ask if a Camera Calibration Check might be the easiest diagnostic.
I thought the outgassing issue was fixed, but the symptoms above are similar to mine, pre alcohol. Maybe not.
My problem is when driving in a 55mph zone, suddenly coming upon a school zone--the kind where the speed limit drops at certain times of the day. Around here, the school speed limit is 15mph, so my GLE drops from 55 to 15 very quickly...at any time of day or night.
In my Audi, the speed doesn't doesn't change, and I get a flashing yellow 'school zone' icon so I can change my speed If I want to.
The other problem I have with my cruise is it will fly up on a slower car and jam on the brakes at the last moment, things go flying.
My problem is when driving in a 55mph zone, suddenly coming upon a school zone--the kind where the speed limit drops at certain times of the day. Around here, the school speed limit is 15mph, so my GLE drops from 55 to 15 very quickly...at any time of day or night.
In my Audi, the speed doesn't doesn't change, and I get a flashing yellow 'school zone' icon so I can change my speed If I want to.
The other problem I have with my cruise is it will fly up on a slower car and jam on the brakes at the last moment, things go flying.
This should be something that can be disabled as well, if i'm not mistaken. The other alternative is once you start to learn the areas that it reduces the speed, you can easily flick the cancel button. Most of the areas I do that for are at all of the roundabouts that are in central Indiana.
As said above, the automatic adoption of speed limits can be easily turned off in the settings. I have this turned off here in the USA in my C63, because I really don't find it useful. It was very helpful while doing European Delivery as the speed limits change frequently and are heavily enforced with speed traps over there, so when the speed limit drops you want to immediately slow down as there are often speed cameras shortly after a lower speed limit sign. In comparison, speed limit enforcement in the USA is the wild west. Traffic on the Interstate often flows at 10-20 mph over and we don't have to worry about speed cameras.
The speed limit recognition is supposed to recognize time limited speed limits. As far as I can tell this works fine in my C63. It ignores speed limits outside the designated times, but as said other than the speed limit sign flashing in my instrument cluster nothing happens when it recognizes a lower speed limit.
With the automatic adoption disabled, you can still manually adopt the current speed limit at any time by pressing RES while DISTRONIC is active. I find this quite useful to set the initial speed based on the current speed limit or manually adopt a lower one when needed instead of the system deciding for me.
I also don't have the issue that it quickly speeds up to catch up to a car in front and then slams on the brakes to slow down. The cameras and sensors look ahead to assess how fast traffic is flowing and it also factors in live traffic data to proactively slow down if there is slower traffic ahead. This actually works really well. Do you have live traffic enabled? My previous Audi did what you are describing. As soon as the immediate car in front changed lanes, my car would go like a bat out of hell just to slam on the brakes again further down when it detected the next car. I always likened it to a really bad driver who is not looking far enough down the road.
Last edited by superswiss; 04-20-2023 at 06:42 PM.
I get the Bat Out Of Hell experience when the lane opens up - IF I have it in Sport+, less in S, and impatiently slow on C. I have to add throttle to keep up with traffic in C.
Regarding overtaking and brakes slamming on, adjusting the following distance "kind of" controls that response.
Set to Max, and it's pretty leisurely in deceleration.
Set to closest, and it thinks it's aggressively defending a slot in heavy traffic.
I set it on two bars (next to closest) in traffic, and I don't get cut off by someone passing on the right. In Sport.
On the open road, I set to four or five bars, and there's seldom any braking other than EQBoost regen.
(BTW I'm actually using Active Lane Keeping on trips, and it doesn't scare me or my passengers. Previous ones kind of scared me.)
Had an issue with the cruise control "adopting speed limit" on my 2022 GLE 450 when we changed insurance companies to USAA and they wanted me to use their "safe driving app." The sudden deacceleration on places limit school zones (when not in session) and in express lanes would apply the brakes so hard that it triggered the safe driving app! My wife was getting penalized because the cruise slows down much quicker than a normal driver would. I no longer use the adopt the speed limit feature of the cruise control. Cheers Socks
First thing I turn off in new cars. i just had a loaner EQE. It was turned on. Surprised me the first time. When I stopped I turned it off.
I turned it off too. It was almost dangerous a few times. I went to move over to the right lane, and there was an off ramp and it thought I wanted to get off onto the off ramp and drastically slowed down very fast, almost like a stop short. If someone had been riding my ***, they would have rear-ended me.
I turned it off too. It was almost dangerous a few times. I went to move over to the right lane, and there was an off ramp and it thought I wanted to get off onto the off ramp and drastically slowed down very fast, almost like a stop short. If someone had been riding my ***, they would have rear-ended me.
I had the same experience. Was on the Pennsylvania Turnpike going through the mountains and all of a sudden I'm in the left lane slowing rapidly from 75 to 35. Apparently it was picking up reduced speed signs for trucks and responding to that. There has been some debate as to whether there are any brake lights or not, but judging by the nasty looks I received from people behind me, I don't believe there was any warning. That sucker is turned off now!
04-20-2023, 12:22 AM
