I just saw that today they’ve offered Traffic Sign Assist as a digital extra for $100 per year or $300 permanent.
I can’t really see why anyone would want to pay to be constantly annoyed by this.

 

Similar annoyance: Cruise control OFF, If you are in E-mode, going 5 mph over the speed limit, and take your foot off the accelerator, the car will brake to the speed limit +5mph. Or if you are in E-mode and coasting and the speed limit drops, the car will brake to the lower speed limit. Doesn't happen in C-mode.

 

I'm not seeing traffic sign assist in digital extras. Is it beyond speed limit sign recognition and include other signs? Can you post the description or screenshot? Curious what it says it provides. Not that I would get it, but curious.

 

 

This should not have anything to do with drive modes. It's a setting to have cruise control to follow the speed limit based on the detected speed limit signs. Drive modes just change how aggressively the car will alter the speed as the limit changes. I've disabled this feature as many times the car will hallucinate and think the speed limit is 25mph when it's 50mph or think it's 55mph when its 45mph. Its not often, but often enough to be annoying.

 

Interesting. My car already has this and its not through a digital extras. Its part of navigation. I have it disabled, but the car will still show the speed limit in the driver display and the HUD. I turn off the audible warning but have it flash the speed limit sign when im exceeding the limit. It only flashes a few times when I hit the threshold over limit and then stops.

I wonder why they want to charge you for something that came with my car and not part of a digital extra for me. Unless it's hidden under another digital extara that im not seeing. Even if it is, I haven't paid for it. I wonder if there is something more to the digital extras you see, but it looks like exactly what I have already. Do you have the driver assist packages?

 

No I don’t have the driver assistance package. I didn’t want it when I ordered my car. That’s the difference. I guess they’re just now making that available to those that don’t have the package.

 

That is likely the case. You are correct in your original assessment that its more annoying than anything else which is why I disabled it. It is nice to have the speed limit displayed in the HUD and driver display though. All the other features are junk IMO.

 

I know it shouldn't. But it does. A couple of times I've had the car indicate the speed limit was 70 mph (as posted on the dash) when the actual speed limit was 50 mph. If I'm in E-mode at the time, the car will allow me to coast up to 70 mph. So I've wondered if the cruise control was set to follow the speed limit, would it have accelerated the car to 70 mph??

 

It seems like the only time mine slows down while coasting in E mode is if it sees me closing in on a car in front of me or it needs to regenerate power.

 

I’ve come to realize when driving and in automatic mode (not manual override), the car will in subtle fashion modulate your speed based upon the speed of the car that is in front of you. It’s subtle but it definitely slows the car down at different rates. When you go past the threshold where you’re going too fast for it to slow you down in time it will do the emergency beep sound however it won’t modulate the brakes for you. If you pass the threshold where it is going way too fast and something is in front of you and you won’t be able to stop in time by its subtle ISG regeneration braking then it will modulate the brakes and beep and you will feel semi scared and slightly winded as the car will brake for you in a savage fashion and tighten your seat belts and it will avoid a car collision most of the time. Luckily the system hasn’t intervened when I felt it would be a close call to trigger a false positive. I also noticed the system is adapting or updating or learning like an AI system would that’s connected to the internet because I drive the same route every day and it used to give false positive beeping when driving faster than the speed limit in a business industrial city road with never ending cars parked on both sides of the road and since the new update a month or so ago it doesn’t beep which is good because when it used it it was a false positive thinking the parked cars were potential cars I’m going to crash into when I’m just doing 40 in a 25 trying to get to my destination in time and on time. I do hope they use my vehicle and the info it records for Mercedes r&d developmental purposes. I definitely push the boundaries of the car which I am sure most people don’t driving a e450. I wish the e53 wasn’t so much heavier, but in a way it keeps me from feeling like I should upgrade.